Added unit-independent distance type.

CMakeLists.txt

@@ -24,7 +24,7 @@ find_package(Qt4 4.8.4 REQUIRED QtCore QtGui QtXml)
 find_package(ZLIB REQUIRED)
 
 
-add_definitions (-g)
+add_definitions (-std=c++11 -g)
 
 
 #

glabels/Handles.cpp

@@ -76,11 +76,15 @@ glabels::Handle::Location glabels::Handle::location() const
 ///
 /// Draw Handle at x,y
 ///
-void glabels::Handle::drawAt( QPainter* painter, double scale, double x, double y, QColor color ) const
+void glabels::Handle::drawAt( QPainter*                   painter,
+			      double                      scale,
+			      const libglabels::Distance& x,
+			      const libglabels::Distance& y,
+			      QColor                      color ) const
 {
 	painter->save();
 
-	painter->translate( x, y );
+	painter->translate( x.pt(), y.pt() );
 
 	double s = 1.0 / scale;
 
@@ -100,14 +104,16 @@ void glabels::Handle::drawAt( QPainter* painter, double scale, double x, double
 ///
 /// Create Handle path at x,y
 ///
-QPainterPath glabels::Handle::pathAt( double scale, double x, double y ) const
+QPainterPath glabels::Handle::pathAt( double                      scale,
+				      const libglabels::Distance& x,
+				      const libglabels::Distance& y ) const
 {
 	QPainterPath path;
 
 	double s = 1/scale;
 
 	path.addRect( -s*handlePixels/2, -s*handlePixels/2, s*handlePixels, s*handlePixels );
-	path.translate( x, y );
+	path.translate( x.pt(), y.pt() );
 	
 	return path;
 }

glabels/Handles.h

@@ -24,6 +24,7 @@
 
 #include <QPainter>
 #include <QPainterPath>
+#include "libglabels/Distance.h"
 
 
 namespace glabels
@@ -67,8 +68,15 @@ namespace glabels
 		virtual void  draw( QPainter* painter, double scale ) const = 0;
 		virtual QPainterPath path( double scale ) const = 0;
 	protected:
-		void drawAt( QPainter* painter, double scale, double x, double y, QColor color ) const;
+		void drawAt( QPainter*                   painter,
-		QPainterPath pathAt( double scale, double x, double y ) const;
+		             double                      scale,
+		             const libglabels::Distance& x,
+		             const libglabels::Distance& y,
+		             QColor                      color ) const;
+		
+		QPainterPath pathAt( double                      scale,
+		                     const libglabels::Distance& x,
+		                     const libglabels::Distance& y ) const;
 
 
 		////////////////////////////

glabels/LabelModel.cpp

@@ -1,6 +1,6 @@
 /*  LabelModel.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -116,7 +116,9 @@ namespace glabels
 	///
 	/// Object at x,y
 	///
-	LabelModelObject* LabelModel::objectAt( double scale, double x, double y ) const
+	LabelModelObject* LabelModel::objectAt( double                      scale,
+						const libglabels::Distance& x,
+						const libglabels::Distance& y ) const
 	{
 		/* Search object list in reverse order.  I.e. from top to bottom. */
 		QList<LabelModelObject*>::const_iterator it = mObjectList.end();
@@ -137,7 +139,9 @@ namespace glabels
 	///
 	/// Handle at x,y
 	///
-	Handle* LabelModel::handleAt( double scale, double x, double y ) const
+	Handle* LabelModel::handleAt( double                      scale,
+				      const libglabels::Distance& x,
+				      const libglabels::Distance& y ) const
 	{
 		foreach( LabelModelObject* object, mObjectList )
 		{
@@ -234,10 +238,10 @@ namespace glabels
 		using std::min;
 		using std::max;
 
-		double rX1 = min( region.x1(), region.x2() );
+		libglabels::Distance rX1 = min( region.x1(), region.x2() );
-		double rY1 = min( region.y1(), region.y2() );
+		libglabels::Distance rY1 = min( region.y1(), region.y2() );
-		double rX2 = max( region.x1(), region.x2() );
+		libglabels::Distance rX2 = max( region.x1(), region.x2() );
-		double rY2 = max( region.y1(), region.y2() );
+		libglabels::Distance rY2 = max( region.y1(), region.y2() );
 
 		foreach ( LabelModelObject* object, mObjectList )
 		{
@@ -559,7 +563,7 @@ namespace glabels
 		QList<LabelModelObject*> selectedList = getSelection();
 
 		/// Find left-most edge.
-		double x1_min = 7200; /// Start with a very large value: 7200pts = 100in
+		libglabels::Distance x1_min = 7200; /// Start with a very large value: 7200pts = 100in
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
@@ -570,7 +574,7 @@ namespace glabels
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
-			double dx = x1_min - r.x1();
+			libglabels::Distance dx = x1_min - r.x1();
 			object->setPositionRelative( dx, 0 );
 		}
 		
@@ -594,7 +598,7 @@ namespace glabels
 		QList<LabelModelObject*> selectedList = getSelection();
 
 		/// Find right-most edge.
-		double x1_max = -7200; /// Start with a very large negative value: 7200pts = 100in
+		libglabels::Distance x1_max = -7200; /// Start with a very large negative value: 7200pts = 100in
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
@@ -605,7 +609,7 @@ namespace glabels
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
-			double dx = x1_max - r.x1();
+			libglabels::Distance dx = x1_max - r.x1();
 			object->setPositionRelative( dx, 0 );
 		}
 		
@@ -629,7 +633,7 @@ namespace glabels
 		QList<LabelModelObject*> selectedList = getSelection();
 
 		/// Find average center of objects.
-		double xsum = 0;
+		libglabels::Distance xsum = 0;
 		int n = 0;
 		foreach ( LabelModelObject* object, selectedList )
 		{
@@ -637,15 +641,15 @@ namespace glabels
 			xsum += (r.x1() + r.x2()) / 2.0;
 			n++;
 		}
-		double xavg = xsum / n;
+		libglabels::Distance xavg = xsum / n;
 
 		/// Find object closest to average center of objects.
-		double xcenter = 7200; /// Start with very large value.
+		libglabels::Distance xcenter = 7200; /// Start with very large value.
-		double dxmin = fabs( xavg - xcenter );
+		libglabels::Distance dxmin = fabs( xavg - xcenter );
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
-			double dx = fabs( xavg - (r.x1() + r.x2())/2.0 );
+			libglabels::Distance dx = fabs( xavg - (r.x1() + r.x2())/2.0 );
 			if ( dx < dxmin )
 			{
 				dxmin = dx;
@@ -657,7 +661,7 @@ namespace glabels
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
-			double dx = xcenter - (r.x1() + r.x2())/2.0;
+			libglabels::Distance dx = xcenter - (r.x1() + r.x2())/2.0;
 			object->setPositionRelative( dx, 0 );
 		}
 		
@@ -681,7 +685,7 @@ namespace glabels
 		QList<LabelModelObject*> selectedList = getSelection();
 
 		/// Find top-most edge.
-		double y1_min = 7200; /// Start with a very large value: 7200pts = 100in
+		libglabels::Distance y1_min = 7200; /// Start with a very large value: 7200pts = 100in
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
@@ -692,7 +696,7 @@ namespace glabels
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
-			double dy = y1_min - r.y1();
+			libglabels::Distance dy = y1_min - r.y1();
 			object->setPositionRelative( 0, dy );
 		}
 		
@@ -716,7 +720,7 @@ namespace glabels
 		QList<LabelModelObject*> selectedList = getSelection();
 
 		/// Find bottom-most edge.
-		double y1_max = -7200; /// Start with a very large negative value: 7200pts = 100in
+		libglabels::Distance y1_max = -7200; /// Start with a very large negative value: 7200pts = 100in
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
@@ -727,7 +731,7 @@ namespace glabels
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
-			double dy = y1_max - r.y1();
+			libglabels::Distance dy = y1_max - r.y1();
 			object->setPositionRelative( 0, dy );
 		}
 		
@@ -751,7 +755,7 @@ namespace glabels
 		QList<LabelModelObject*> selectedList = getSelection();
 
 		/// Find average center of objects.
-		double ysum = 0;
+		libglabels::Distance ysum = 0;
 		int n = 0;
 		foreach ( LabelModelObject* object, selectedList )
 		{
@@ -759,15 +763,15 @@ namespace glabels
 			ysum += (r.y1() + r.y2()) / 2.0;
 			n++;
 		}
-		double yavg = ysum / n;
+		libglabels::Distance yavg = ysum / n;
 
 		/// Find object closest to average center of objects.
-		double ycenter = 7200; /// Start with very large value.
+		libglabels::Distance ycenter = 7200; /// Start with very large value.
-		double dymin = fabs( yavg - ycenter );
+		libglabels::Distance dymin = fabs( yavg - ycenter );
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
-			double dy = fabs( yavg - (r.y1() + r.y2())/2.0 );
+			libglabels::Distance dy = fabs( yavg - (r.y1() + r.y2())/2.0 );
 			if ( dy < dymin )
 			{
 				dymin = dy;
@@ -779,7 +783,7 @@ namespace glabels
 		foreach ( LabelModelObject* object, selectedList )
 		{
 			LabelRegion r = object->getExtent();
-			double dy = ycenter - (r.y1() + r.y2())/2.0;
+			libglabels::Distance dy = ycenter - (r.y1() + r.y2())/2.0;
 			object->setPositionRelative( 0, dy );
 		}
 		
@@ -795,15 +799,15 @@ namespace glabels
 	///
 	void LabelModel::centerSelectionHoriz()
 	{
-		double xLabelCenter = w() / 2.0;
+		libglabels::Distance xLabelCenter = w() / 2.0;
 
 		foreach ( LabelModelObject* object, mObjectList )
 		{
 			if ( object->isSelected() )
 			{
 				LabelRegion r = object->getExtent();
-				double xObjectCenter = (r.x1() + r.x2()) / 2.0;
+				libglabels::Distance xObjectCenter = (r.x1() + r.x2()) / 2.0;
-				double dx = xLabelCenter - xObjectCenter;
+				libglabels::Distance dx = xLabelCenter - xObjectCenter;
 				object->setPositionRelative( dx, 0 );
 			}
 		}
@@ -820,15 +824,15 @@ namespace glabels
 	///
 	void LabelModel::centerSelectionVert()
 	{
-		double yLabelCenter = h() / 2.0;
+		libglabels::Distance yLabelCenter = h() / 2.0;
 
 		foreach ( LabelModelObject* object, mObjectList )
 		{
 			if ( object->isSelected() )
 			{
 				LabelRegion r = object->getExtent();
-				double yObjectCenter = (r.y1() + r.y2()) / 2.0;
+				libglabels::Distance yObjectCenter = (r.y1() + r.y2()) / 2.0;
-				double dy = yLabelCenter - yObjectCenter;
+				libglabels::Distance dy = yLabelCenter - yObjectCenter;
 				object->setPositionRelative( 0, dy );
 			}
 		}
@@ -843,7 +847,7 @@ namespace glabels
 	///
 	/// Move Selected Objects By dx,dy
 	///
-	void LabelModel::moveSelection( double dx, double dy )
+	void LabelModel::moveSelection( const libglabels::Distance& dx, const libglabels::Distance& dy )
 	{
 		foreach ( LabelModelObject* object, mObjectList )
 		{
@@ -1023,7 +1027,7 @@ namespace glabels
 	///
 	/// Set Line Width Of Selected Objects
 	///
-	void LabelModel::setSelectionLineWidth( double lineWidth )
+	void LabelModel::setSelectionLineWidth( const libglabels::Distance& lineWidth )
 	{
 		foreach ( LabelModelObject* object, mObjectList )
 		{

glabels/LabelModel.h

@@ -1,6 +1,6 @@
 /*  LabelModel.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -88,8 +88,8 @@ namespace glabels
 		inline bool rotate() const;
 		inline void setRotate( bool rotate );
 
-		inline double w() const;
+		inline libglabels::Distance w() const;
-		inline double h() const;
+		inline libglabels::Distance h() const;
 
 		inline const QList<LabelModelObject*>& objectList() const;
 
@@ -101,8 +101,13 @@ namespace glabels
 		void addObject( LabelModelObject* object );
 		void deleteObject( LabelModelObject* object );
 
-		LabelModelObject* objectAt( double scale, double x, double y ) const;
+		LabelModelObject* objectAt( double                      scale,
-		Handle* handleAt( double scale, double x, double y ) const;
+		                            const libglabels::Distance& x,
+		                            const libglabels::Distance& y ) const;
+		
+		Handle* handleAt( double                      scale,
+		                  const libglabels::Distance& x,
+		                  const libglabels::Distance& y ) const;
 
 
 		/////////////////////////////////
@@ -156,7 +161,7 @@ namespace glabels
 		void alignSelectionVCenter();
 		void centerSelectionHoriz();
 		void centerSelectionVert();
-		void moveSelection( double dx, double dy );
+		void moveSelection( const libglabels::Distance& dx, const libglabels::Distance& dy );
 		void setSelectionFontFamily( const QString& fontFamily );
 		void setSelectionFontSize( double fontSize );
 		void setSelectionFontWeight( QFont::Weight fontWeight );
@@ -165,7 +170,7 @@ namespace glabels
 		void setSelectionTextVAlign( Qt::Alignment textVAlign );
 		void setSelectionTextLineSpacing( double textLineSpacing );
 		void setSelectionTextColorNode( ColorNode textColorNode );
-		void setSelectionLineWidth( double lineWidth );
+		void setSelectionLineWidth( const libglabels::Distance& lineWidth );
 		void setSelectionLineColorNode( ColorNode lineColorNode );
 		void setSelectionFillColorNode( ColorNode fillColorNode );
 
@@ -284,13 +289,13 @@ namespace glabels
 	}
 
 
-	inline double LabelModel::w() const
+	inline libglabels::Distance LabelModel::w() const
 	{
 		return mRotate ? mFrame->h() : mFrame->w();
 	}
 
 
-	inline double LabelModel::h() const
+	inline libglabels::Distance LabelModel::h() const
 	{
 		return mRotate ? mFrame->w() : mFrame->h();
 	}

glabels/LabelModelBoxObject.cpp

@@ -1,6 +1,6 @@
 /*  LabelModelBoxObject.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -70,12 +70,15 @@ namespace glabels
 			if ( lineColor.alpha() )
 			{
 				/* Has FILL and OUTLINE: adjust size to account for line width. */
-				painter->drawRect( QRectF( -mLineWidth/2, -mLineWidth/2, mW+mLineWidth, mH+mLineWidth ) );
+				painter->drawRect( QRectF( -mLineWidth.pt()/2,
+							   -mLineWidth.pt()/2,
+							   (mW + mLineWidth).pt(),
+							   (mH + mLineWidth).pt() ) );
 			}
 			else
 			{
 				/* Has FILL, but no OUTLINE. */
-				painter->drawRect( QRectF( 0, 0, mW, mH ) );
+				painter->drawRect( QRectF( 0, 0, mW.pt(), mH.pt() ) );
 			}
 		}
 		else
@@ -83,10 +86,10 @@ namespace glabels
 			if ( lineColor.alpha() )
 			{
 				/* Has only OUTLINE. */
-				painter->setPen( QPen( shadowColor, mLineWidth ) );
+				painter->setPen( QPen( shadowColor, mLineWidth.pt() ) );
 				painter->setBrush( Qt::NoBrush );
 
-				painter->drawRect( QRectF( 0, 0, mW, mH ) );
+				painter->drawRect( QRectF( 0, 0, mW.pt(), mH.pt() ) );
 			}
 		}
 		
@@ -103,10 +106,10 @@ namespace glabels
 		QColor lineColor = mLineColorNode.color();
 		QColor fillColor = mFillColorNode.color();
 
-		painter->setPen( QPen( lineColor, mLineWidth ) );
+		painter->setPen( QPen( lineColor, mLineWidth.pt() ) );
 		painter->setBrush( fillColor );
 
-		painter->drawRect( QRectF( 0, 0, mW, mH ) );
+		painter->drawRect( QRectF( 0, 0, mW.pt(), mH.pt() ) );
 	}
 
 
@@ -121,21 +124,26 @@ namespace glabels
 
 		if ( mFillColorNode.color().alpha() && mLineColorNode.color().alpha() )
 		{
-			path.addRect( -mLineWidth/2, -mLineWidth/2, mW+mLineWidth, mH+mLineWidth );
+			path.addRect( -mLineWidth.pt()/2, -mLineWidth.pt()/2, (mW+mLineWidth).pt(), (mH+mLineWidth).pt() );
 		}
 		else if ( mFillColorNode.color().alpha() && !(mLineColorNode.color().alpha()) )
 		{
-			path.addRect( 0, 0, mW, mH );
+			path.addRect( 0, 0, mW.pt(), mH.pt() );
 		}
 		else if ( mLineColorNode.color().alpha() )
 		{
-			path.addRect( (-mLineWidth/2)-s*slopPixels, (-mLineWidth/2)-s*slopPixels,
+			path.addRect( (-mLineWidth.pt()/2) - s*slopPixels,
-				      mW+mLineWidth+s*2*slopPixels, mH+mLineWidth+s*2*slopPixels );
+				      (-mLineWidth.pt()/2) - s*slopPixels,
+				      (mW + mLineWidth).pt() + s*2*slopPixels,
+				      (mH + mLineWidth).pt() + s*2*slopPixels );
 			path.closeSubpath();
-			path.addRect( mLineWidth/2+s*slopPixels, mLineWidth/2+s*slopPixels,
+			path.addRect( mLineWidth.pt()/2 + s*slopPixels,
-				      mW-mLineWidth-s*2*slopPixels, mH-mLineWidth-s*2*slopPixels );
+				      mLineWidth.pt()/2 + s*slopPixels,
+				      (mW - mLineWidth).pt() - s*2*slopPixels,
+				      (mH - mLineWidth).pt() - s*2*slopPixels );
 		}
 
 		return path;
 	}
+	
 }

glabels/LabelModelBoxObject.h

@@ -1,6 +1,6 @@
 /*  LabelModelBoxObject.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *

glabels/LabelModelObject.cpp

@@ -113,7 +113,7 @@ namespace glabels
 	///
 	/// X0 Property Getter
 	///
-	double LabelModelObject::x0() const
+	libglabels::Distance LabelModelObject::x0() const
 	{
 		return mX0;
 	}
@@ -122,7 +122,7 @@ namespace glabels
 	///
 	/// X0 Property Setter
 	///
-	void LabelModelObject::setX0( double value )
+	void LabelModelObject::setX0( const libglabels::Distance& value )
 	{
 		if ( mX0 != value )
 		{
@@ -135,7 +135,7 @@ namespace glabels
 	///
 	/// Y0 Property Getter
 	///
-	double LabelModelObject::y0() const
+	libglabels::Distance LabelModelObject::y0() const
 	{
 		return mY0;
 	}
@@ -144,7 +144,7 @@ namespace glabels
 	///
 	/// Y0 Property Setter
 	///
-	void LabelModelObject::setY0( double value )
+	void LabelModelObject::setY0( const libglabels::Distance& value )
 	{
 		if ( mY0 != value )
 		{
@@ -157,7 +157,7 @@ namespace glabels
 	///
 	/// W (Width) Property Getter
 	///
-	double LabelModelObject::w() const
+	libglabels::Distance LabelModelObject::w() const
 	{
 		return mW;
 	}
@@ -166,7 +166,7 @@ namespace glabels
 	///
 	/// W (Width) Property Setter
 	///
-	void LabelModelObject::setW( double value )
+	void LabelModelObject::setW( const libglabels::Distance& value )
 	{
 		if ( mW != value )
 		{
@@ -179,7 +179,7 @@ namespace glabels
 	///
 	/// H (Height) Property Getter
 	///
-	double LabelModelObject::h() const
+	libglabels::Distance LabelModelObject::h() const
 	{
 		return mH;
 	}
@@ -188,7 +188,7 @@ namespace glabels
 	///
 	/// H (Height) Property Setter
 	///
-	void LabelModelObject::setH( double value )
+	void LabelModelObject::setH( const libglabels::Distance& value )
 	{
 		if ( mH != value )
 		{
@@ -245,7 +245,7 @@ namespace glabels
 	///
 	/// Shadow X Property Getter
 	///
-	double LabelModelObject::shadowX() const
+	libglabels::Distance LabelModelObject::shadowX() const
 	{
 		return mShadowX;
 	}
@@ -254,7 +254,7 @@ namespace glabels
 	///
 	/// Shadow X Property Setter
 	///
-	void LabelModelObject::setShadowX( double value )
+	void LabelModelObject::setShadowX( const libglabels::Distance& value )
 	{
 		if ( mShadowX != value )
 		{
@@ -267,7 +267,7 @@ namespace glabels
 	///
 	/// Shadow Y Property Getter
 	///
-	double LabelModelObject::shadowY() const
+	libglabels::Distance LabelModelObject::shadowY() const
 	{
 		return mShadowY;
 	}
@@ -276,7 +276,7 @@ namespace glabels
 	///
 	/// Shadow Y Property Setter
 	///
-	void LabelModelObject::setShadowY( double value )
+	void LabelModelObject::setShadowY( const libglabels::Distance& value )
 	{
 		if ( mShadowY != value )
 		{
@@ -524,7 +524,7 @@ namespace glabels
 	/// Virtual Line Width Property Default Getter
 	/// (Overridden by concrete class)
 	///
-	double LabelModelObject::lineWidth() const
+	libglabels::Distance LabelModelObject::lineWidth() const
 	{
 		return 0;
 	}
@@ -534,7 +534,7 @@ namespace glabels
 	/// Virtual Line Width Property Default Setter
 	/// (Overridden by concrete class)
 	///
-	void LabelModelObject::setLineWidth( double value )
+	void LabelModelObject::setLineWidth( const libglabels::Distance& value )
 	{
 	}
 
@@ -734,7 +734,8 @@ namespace glabels
 	///
 	/// Set Absolute Position
 	///
-	void LabelModelObject::setPosition( double x0, double y0 )
+	void LabelModelObject::setPosition( const libglabels::Distance& x0,
+					    const libglabels::Distance& y0 )
 	{
 		if ( ( mX0 != x0 ) || ( mY0 != y0 ) )
 		{
@@ -749,7 +750,8 @@ namespace glabels
 	///
 	/// Set Relative Position
 	///
-	void LabelModelObject::setPositionRelative( double dx, double dy )
+	void LabelModelObject::setPositionRelative( const libglabels::Distance& dx,
+						    const libglabels::Distance& dy )
 	{
 		if ( ( dx != 0 ) || ( dy != 0 ) )
 		{
@@ -764,7 +766,8 @@ namespace glabels
 	///
 	/// Set Size
 	///
-	void LabelModelObject::setSize( double w, double h )
+	void LabelModelObject::setSize( const libglabels::Distance& w,
+					const libglabels::Distance& h )
 	{
 		mW = w;
 		mH = h;
@@ -776,30 +779,33 @@ namespace glabels
 	///
 	/// Set Size (But Maintain Current Aspect Ratio)
 	///
-	void LabelModelObject::setSizeHonorAspect( double w, double h )
+	void LabelModelObject::setSizeHonorAspect( const libglabels::Distance& w,
+						   const libglabels::Distance& h )
 	{
 		double aspectRatio = mH / mW;
+		libglabels::Distance wNew = w;
+		libglabels::Distance hNew = h;
 		
 		if ( h > (w*aspectRatio) )
 		{
-			h = w*aspectRatio;
+			hNew = w*aspectRatio;
 		}
 		else
 		{
-			w = h/aspectRatio;
+			wNew = h/aspectRatio;
 		}
 
-		setSize( w, h );
+		setSize( wNew, hNew );
 	}
 
 
 	///
 	/// Set Width (But Maintain Current Aspect Ratio)
 	///
-	void LabelModelObject::setWHonorAspect( double w )
+	void LabelModelObject::setWHonorAspect( const libglabels::Distance& w )
 	{
 		double aspectRatio = mH / mW;
-		double h = w * aspectRatio;
+		libglabels::Distance h = w * aspectRatio;
 
 		if ( ( mW != w ) || ( mH != h ) )
 		{
@@ -814,10 +820,10 @@ namespace glabels
 	///
 	/// Set Height (But Maintain Current Aspect Ratio)
 	///
-	void LabelModelObject::setHHonorAspect( double h )
+	void LabelModelObject::setHHonorAspect( const libglabels::Distance& h )
 	{
 		double aspectRatio = mH / mW;
-		double w = h / aspectRatio;
+		libglabels::Distance w = h / aspectRatio;
 
 		if ( ( mW != w ) || ( mH != h ) )
 		{
@@ -837,10 +843,10 @@ namespace glabels
 		using std::min;
 		using std::max;
 
-		QPointF a1(    - lineWidth()/2,    - lineWidth()/2 );
+		QPointF a1( (   - lineWidth()/2).pt(), (   - lineWidth()/2).pt() );
-		QPointF a2( mW + lineWidth()/2,    - lineWidth()/2 );
+		QPointF a2( (mW + lineWidth()/2).pt(), (   - lineWidth()/2).pt() );
-		QPointF a3( mW + lineWidth()/2, mH + lineWidth()/2 );
+		QPointF a3( (mW + lineWidth()/2).pt(), (mH + lineWidth()/2).pt() );
-		QPointF a4(    - lineWidth()/2, mH + lineWidth()/2 );
+		QPointF a4( (   - lineWidth()/2).pt(), (mH + lineWidth()/2).pt() );
 
 		a1 = mMatrix.map( a1 );
 		a2 = mMatrix.map( a2 );
@@ -848,10 +854,10 @@ namespace glabels
 		a4 = mMatrix.map( a4 );
 
 		LabelRegion region;
-		region.setX1( min( a1.x(), min( a2.x(), min( a3.x(), a4.x() ) ) ) + mX0 );
+		region.setX1( libglabels::Distance(min( a1.x(), min( a2.x(), min( a3.x(), a4.x() ) ) )) + mX0 );
-		region.setY1( min( a1.y(), min( a2.y(), min( a3.y(), a4.y() ) ) ) + mY0 );
+		region.setY1( libglabels::Distance(min( a1.y(), min( a2.y(), min( a3.y(), a4.y() ) ) )) + mY0 );
-		region.setX2( max( a1.x(), max( a2.x(), max( a3.x(), a4.x() ) ) ) + mX0 );
+		region.setX2( libglabels::Distance(max( a1.x(), max( a2.x(), max( a3.x(), a4.x() ) ) )) + mX0 );
-		region.setY2( max( a1.y(), max( a2.y(), max( a3.y(), a4.y() ) ) ) + mY0 );
+		region.setY2( libglabels::Distance(max( a1.y(), max( a2.y(), max( a3.y(), a4.y() ) ) )) + mY0 );
 
 		return region;
 	}
@@ -902,14 +908,16 @@ namespace glabels
 	///
 	/// Is this object located at x,y?
 	///
-	bool LabelModelObject::isLocatedAt( double scale, double x, double y ) const
+	bool LabelModelObject::isLocatedAt( double                      scale,
+					    const libglabels::Distance& x,
+					    const libglabels::Distance& y ) const
 	{
-		QPointF p( x, y );
+		QPointF p( x.pt(), y.pt() );
 
 		/*
 		 * Change point to object relative coordinates
 		 */
-		p -= QPointF( mX0, mY0 ); // Translate point to x0,y0
+		p -= QPointF( mX0.pt(), mY0.pt() ); // Translate point to x0,y0
 		p = mMatrix.inverted().map( p );
 
 		if ( hoverPath( scale ).contains( p ) )
@@ -931,12 +939,14 @@ namespace glabels
 	///
 	/// Is one of this object's handles locate at x,y?  If so, return it.
 	///
-	Handle* LabelModelObject::handleAt( double scale, double x, double y ) const
+	Handle* LabelModelObject::handleAt( double                      scale,
+					    const libglabels::Distance& x,
+					    const libglabels::Distance& y ) const
 	{
 		if ( mSelectedFlag )
 		{
-			QPointF p( x, y );
+			QPointF p( x.pt(), y.pt() );
-			p -= QPointF( mX0, mY0 ); // Translate point to x0,y0
+			p -= QPointF( mX0.pt(), mY0.pt() ); // Translate point to x0,y0
 
 			foreach ( Handle* handle, mHandles )
 			{
@@ -958,12 +968,12 @@ namespace glabels
 	void LabelModelObject::draw( QPainter* painter, bool inEditor, MergeRecord* record ) const
 	{
 		painter->save();
-		painter->translate( mX0, mY0 );
+		painter->translate( mX0.pt(), mY0.pt() );
 
 		if ( mShadowState )
 		{
 			painter->save();
-			painter->translate( mShadowX, mShadowY );
+			painter->translate( mShadowX.pt(), mShadowY.pt() );
 			painter->setMatrix( mMatrix, true );
 			drawShadow( painter, inEditor, record );
 			painter->restore();
@@ -983,7 +993,7 @@ namespace glabels
 	{
 		painter->save();
 
-		painter->translate( mX0, mY0 );
+		painter->translate( mX0.pt(), mY0.pt() );
 		painter->setMatrix( mMatrix, true );
 
 		if ( mOutline )
@@ -1000,7 +1010,5 @@ namespace glabels
 	}
 
 
-
-
 }
 

glabels/LabelModelObject.h

@@ -1,6 +1,6 @@
 /*  LabelModelObject.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -26,6 +26,7 @@
 #include <QMatrix>
 #include <QPainter>
 
+#include "libglabels/Distance.h"
 #include "ColorNode.h"
 #include "TextNode.h"
 #include "BarcodeStyle.h"
@@ -70,15 +71,11 @@ namespace glabels
 		//
 		// ID Property.
 		//
-		Q_PROPERTY( int id READ id )
-
 		int id() const;
 
 		//
 		// Selected Property.
 		//
-		Q_PROPERTY( bool selected READ isSelected WRITE select RESET unselect )
-
 		bool isSelected() const;
 		void select( bool value = true );
 		void unselect();
@@ -87,44 +84,34 @@ namespace glabels
 		//
 		// x0 Property ( x coordinate of origin )
 		//
-		Q_PROPERTY( double x0 READ x0 WRITE setX0 );
+		libglabels::Distance x0() const;
-
+		void setX0( const libglabels::Distance& value );
-		double x0() const;
-		void setX0( double value );
 		
 
 		//
 		// y0 Property ( y coordinate of origin )
 		//
-		Q_PROPERTY( double y0 READ y0 WRITE setY0 );
+		libglabels::Distance y0() const;
-
+		void setY0( const libglabels::Distance& value );
-		double y0() const;
-		void setY0( double value );
 		
 
 		//
 		// w Property ( width of bounding box )
 		//
-		Q_PROPERTY( double w  READ w  WRITE setW );
+		libglabels::Distance w() const;
-
+		void setW( const libglabels::Distance& value );
-		double w() const;
-		void setW( double value );
 		
 
 		//
 		// h Property ( height of bounding box )
 		//
-		Q_PROPERTY( double h  READ h  WRITE setH );
+		libglabels::Distance h() const;
-
+		void setH( const libglabels::Distance& value );
-		double h() const;
-		void setH( double value );
 
 
 		//
 		// Transformation Matrix Property
 		//
-		Q_PROPERTY( QMatrix matrix READ matrix WRITE setMatrix );
-
 		QMatrix matrix() const;
 		void setMatrix( const QMatrix& value );
 
@@ -132,8 +119,6 @@ namespace glabels
 		//
 		// Shadow State Property
 		//
-		Q_PROPERTY( bool shadow READ shadow WRITE setShadow );
-
 		bool shadow() const;
 		void setShadow( bool value );
 
@@ -141,26 +126,20 @@ namespace glabels
 		//
 		// Shadow x Offset Property
 		//
-		Q_PROPERTY( double shadowX READ shadowX WRITE setShadowX );
+		libglabels::Distance shadowX() const;
-
+		void setShadowX( const libglabels::Distance& value );
-		double shadowX() const;
-		void setShadowX( double value );
 		
 
 		//
 		// Shadow y Offset Property
 		//
-		Q_PROPERTY( double shadowY READ shadowY WRITE setShadowY );
+		libglabels::Distance shadowY() const;
-
+		void setShadowY( const libglabels::Distance& value );
-		double shadowY() const;
-		void setShadowY( double value );
 		
 
 		//
 		// Shadow opacity Property
 		//
-		Q_PROPERTY( double shadowOpacity READ shadowOpacity WRITE setShadowOpacity );
-
 		double shadowOpacity() const;
 		void setShadowOpacity( double value );
 		
@@ -168,8 +147,6 @@ namespace glabels
 		//
 		// Shadow Color Property
 		//
-		Q_PROPERTY( ColorNode shadowColorNode READ shadowColorNode WRITE setShadowColorNode );
-
 		ColorNode shadowColorNode() const;
 		void setShadowColorNode( const ColorNode& value );
 		
@@ -181,8 +158,6 @@ namespace glabels
 		//
 		// Virtual Text Property: fontFamily
 		//
-		Q_PROPERTY( QString fontFamily READ fontFamily WRITE setFontFamily );
-
 		virtual QString fontFamily() const;
 		virtual void setFontFamily( const QString &value );
 
@@ -190,8 +165,6 @@ namespace glabels
 		//
 		// Virtual Text Property: fontSize
 		//
-		Q_PROPERTY( double fontSize READ fontSize WRITE setFontSize );
-
 		virtual double fontSize() const;
 		virtual void setFontSize( double value );
 
@@ -199,8 +172,6 @@ namespace glabels
 		//
 		// Virtual Text Property: fontWeight
 		//
-		Q_PROPERTY( QFont::Weight fontWeight READ fontWeight WRITE setFontWeight );
-
 		virtual QFont::Weight fontWeight() const;
 		virtual void setFontWeight( QFont::Weight value );
 
@@ -208,8 +179,6 @@ namespace glabels
 		//
 		// Virtual Text Property: fontItalicFlag
 		//
-		Q_PROPERTY( bool fontItalicFlag READ fontItalicFlag WRITE setFontItalicFlag );
-
 		virtual bool fontItalicFlag() const;
 		virtual void setFontItalicFlag( bool value );
 
@@ -217,8 +186,6 @@ namespace glabels
 		//
 		// Virtual Text Property: fontUnderlineFlag
 		//
-		Q_PROPERTY( bool fontUnderlineFlag READ fontUnderlineFlag WRITE setFontUnderlineFlag );
-
 		virtual bool fontUnderlineFlag() const;
 		virtual void setFontUnderlineFlag( bool value );
 
@@ -226,8 +193,6 @@ namespace glabels
 		//
 		// Virtual Text Property: textColorNode
 		//
-		Q_PROPERTY( ColorNode textColorNode READ textColorNode WRITE setTextColorNode );
-
 		virtual ColorNode textColorNode() const;
 		virtual void setTextColorNode( const ColorNode &value );
 		
@@ -235,8 +200,6 @@ namespace glabels
 		//
 		// Virtual Text Property: textHAlign
 		//
-		Q_PROPERTY( Qt::Alignment textHAlign READ textHAlign WRITE setTextHAlign );
-
 		virtual Qt::Alignment textHAlign() const;
 		virtual void setTextHAlign( Qt::Alignment value );
 
@@ -244,8 +207,6 @@ namespace glabels
 		//
 		// Virtual Text Property: textVAlign
 		//
-		Q_PROPERTY( Qt::Alignment textVAlign READ textVAlign WRITE setTextVAlign );
-
 		virtual Qt::Alignment textVAlign() const;
 		virtual void setTextVAlign( Qt::Alignment value );
 
@@ -253,8 +214,6 @@ namespace glabels
 		//
 		// Virtual Text Property: textLineSpacing
 		//
-		Q_PROPERTY( double textLineSpacing READ textLineSpacing WRITE setTextLineSpacing );
-
 		virtual double textLineSpacing() const;
 		virtual void setTextLineSpacing( double value );
 
@@ -266,8 +225,6 @@ namespace glabels
 		//
 		// Virtual Image Property: filenameNode
 		//
-		Q_PROPERTY( TextNode filenameNode READ filenameNode WRITE setFilenameNode );
-
 		virtual TextNode filenameNode() const;
 		virtual void setFilenameNode( const TextNode &value );
 		
@@ -279,17 +236,13 @@ namespace glabels
 		//
 		// Virtual Shape Property: lineWidth
 		//
-		Q_PROPERTY( double lineWidth READ lineWidth WRITE setLineWidth );
+		virtual libglabels::Distance lineWidth() const;
-
+		virtual void setLineWidth( const libglabels::Distance& value );
-		virtual double lineWidth() const;
-		virtual void setLineWidth( double value );
 
 
 		//
 		// Virtual Shape Property: lineColorNode
 		//
-		Q_PROPERTY( ColorNode lineColorNode READ lineColorNode WRITE setLineColorNode );
-
 		virtual ColorNode lineColorNode() const;
 		virtual void setLineColorNode( const ColorNode &value );
 		
@@ -297,8 +250,6 @@ namespace glabels
 		//
 		// Virtual Shape Property: fillColorNode
 		//
-		Q_PROPERTY( ColorNode fillColorNode READ fillColorNode WRITE setFillColorNode );
-
 		virtual ColorNode fillColorNode() const;
 		virtual void setFillColorNode( const ColorNode &value );
 		
@@ -310,8 +261,6 @@ namespace glabels
 		//
 		// Virtual Barcode Property: bcDataNode
 		//
-		Q_PROPERTY( TextNode bcDataNode READ bcDataNode WRITE setBcDataNode );
-
 		virtual TextNode bcDataNode() const;
 		virtual void setBcDataNode( const TextNode &value );
 		
@@ -319,8 +268,6 @@ namespace glabels
 		//
 		// Virtual Barcode Property: bcTextFlag
 		//
-		Q_PROPERTY( bool bcTextFlag READ bcTextFlag WRITE setBcTextFlag );
-
 		virtual bool bcTextFlag() const;
 		virtual void setBcTextFlag( bool value );
 
@@ -328,8 +275,6 @@ namespace glabels
 		//
 		// Virtual Barcode Property: bcChecksumFlag
 		//
-		Q_PROPERTY( bool bcChecksumFlag READ bcChecksumFlag WRITE setBcChecksumFlag );
-
 		virtual bool bcChecksumFlag() const;
 		virtual void setBcChecksumFlag( bool value );
 
@@ -337,8 +282,6 @@ namespace glabels
 		//
 		// Virtual Barcode Property: bcColorNode
 		//
-		Q_PROPERTY( ColorNode bcColorNode READ bcColorNode WRITE setBcColorNode );
-
 		virtual ColorNode bcColorNode() const;
 		virtual void setBcColorNode( const ColorNode &value );
 		
@@ -346,8 +289,6 @@ namespace glabels
 		//
 		// Virtual Barcode Property: bcStyle
 		//
-		Q_PROPERTY( BarcodeStyle bcStyle READ bcStyle WRITE setBcStyle );
-
 		virtual BarcodeStyle bcStyle() const;
 		virtual void setBcStyle( const BarcodeStyle &value );
 		
@@ -355,8 +296,6 @@ namespace glabels
 		//
 		// Virtual Barcode Property: bcFormatDigits
 		//
-		Q_PROPERTY( int bcFormatDigits READ bcFormatDigits WRITE setBcFormatDigits );
-
 		virtual int bcFormatDigits() const;
 		virtual void setBcFormatDigits( int value );
 
@@ -375,18 +314,18 @@ namespace glabels
 		// Position and Size methods
 		///////////////////////////////////////////////////////////////
 	public:
-		void setPosition( double x0, double y0 );
+		void setPosition( const libglabels::Distance& x0, const libglabels::Distance& y0 );
-		void setPositionRelative( double dx, double dy );
+		void setPositionRelative( const libglabels::Distance& dx, const libglabels::Distance& dy );
-		void setSize( double w, double h );
+		void setSize( const libglabels::Distance& w, const libglabels::Distance& h );
-		void setSizeHonorAspect( double w, double h );
+		void setSizeHonorAspect( const libglabels::Distance& w, const libglabels::Distance& h );
-		void setWHonorAspect( double w );
+		void setWHonorAspect( const libglabels::Distance& w );
-		void setHHonorAspect( double h );
+		void setHHonorAspect( const libglabels::Distance& h );
 		LabelRegion getExtent();
 		void rotate( double thetaDegs );
 		void flipHoriz();
 		void flipVert();
-		bool isLocatedAt( double scale, double x, double y ) const;
+		bool isLocatedAt( double scale, const libglabels::Distance& x, const libglabels::Distance& y ) const;
-		Handle* handleAt( double scale, double x, double y ) const;
+		Handle* handleAt( double scale, const libglabels::Distance& x, const libglabels::Distance& y ) const;
 
 
 		///////////////////////////////////////////////////////////////
@@ -408,14 +347,14 @@ namespace glabels
 	protected:
 		bool                 mSelectedFlag;
 
-		double     mX0;
+		libglabels::Distance mX0;
-		double     mY0;
+		libglabels::Distance mY0;
-		double     mW;
+		libglabels::Distance mW;
-		double     mH;
+		libglabels::Distance mH;
 
 		bool                 mShadowState;
-		double     mShadowX;
+		libglabels::Distance mShadowX;
-		double     mShadowY;
+		libglabels::Distance mShadowY;
 		double               mShadowOpacity;
 		ColorNode            mShadowColorNode;
 

glabels/LabelModelShapeObject.cpp

@@ -1,6 +1,6 @@
 /*  LabelModelShapeObject.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -67,7 +67,7 @@ namespace glabels
 	///
 	/// Line Width Property Getter
 	///
-	double LabelModelShapeObject::lineWidth( void ) const
+	libglabels::Distance LabelModelShapeObject::lineWidth( void ) const
 	{
 		return mLineWidth;
 	}
@@ -76,7 +76,7 @@ namespace glabels
 	///
 	/// Line Width Property Setter
 	///
-	void LabelModelShapeObject::setLineWidth( double value )
+	void LabelModelShapeObject::setLineWidth( const libglabels::Distance& value )
 	{
 		if ( mLineWidth != value )
 		{

glabels/LabelModelShapeObject.h

@@ -1,6 +1,6 @@
 /*  LabelModelShapeObject.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -50,8 +50,8 @@ namespace glabels
 		//
 		// Shape Property: lineWidth
 		//
-		virtual double lineWidth( void ) const;
+		virtual libglabels::Distance lineWidth( void ) const;
-		virtual void setLineWidth( double value );
+		virtual void setLineWidth( const libglabels::Distance& value );
 
 
 		//
@@ -81,7 +81,7 @@ namespace glabels
 		// Private Members
 		///////////////////////////////////////////////////////////////
 	protected:
-		double     mLineWidth;
+		libglabels::Distance mLineWidth;
 		ColorNode            mLineColorNode;
 		ColorNode            mFillColorNode;
 

glabels/LabelRegion.cpp

@@ -1,6 +1,6 @@
 /*  LabelRegion.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -34,10 +34,10 @@ namespace glabels
 
 		QRectF r;
 
-		r.setX( min( mX1, mX2 ) );
+		r.setX( min( mX1, mX2 ).pt() );
-		r.setY( min( mY1, mY2 ) );
+		r.setY( min( mY1, mY2 ).pt() );
-		r.setWidth( fabs( mX2 - mX1 ) );
+		r.setWidth( fabs( mX2 - mX1 ).pt() );
-		r.setHeight( fabs( mY2 - mY1 ) );
+		r.setHeight( fabs( mY2 - mY1 ).pt() );
 
 		return r;
 	}

glabels/LabelRegion.h

@@ -22,6 +22,7 @@
 #define glabels_LabelRegion_h
 
 #include <QRectF>
+#include "libglabels/Distance.h"
 
 
 namespace glabels
@@ -40,30 +41,30 @@ namespace glabels
 		//
 		// X1 Property
 		//
-		inline double x1( void ) const;
+		libglabels::Distance x1( void ) const;
-		inline void setX1( double value );
+		void setX1( const libglabels::Distance& value );
 
 
 		//
 		// Y1 Property
 		//
-		inline double y1( void ) const;
+		libglabels::Distance y1( void ) const;
-		inline void setY1( double value );
+		void setY1( const libglabels::Distance& value );
 
 
 		//
 		// X2 Property
 		//
-		inline double x2( void ) const;
+		libglabels::Distance x2( void ) const;
-		inline void setX2( double value );
+		void setX2( const libglabels::Distance& value );
 
 
 
 		//
 		// Y2 Property
 		//
-		inline double y2( void ) const;
+		libglabels::Distance y2( void ) const;
-		inline void setY2( double value );
+		void setY2( const libglabels::Distance& value );
 
 
 		/////////////////////////////////
@@ -77,59 +78,59 @@ namespace glabels
 		// Private Data
 		/////////////////////////////////
 	private:
-		double mX1;
+		libglabels::Distance mX1;
-		double mY1;
+		libglabels::Distance mY1;
-		double mX2;
+		libglabels::Distance mX2;
-		double mY2;
+		libglabels::Distance mY2;
 	};
 
 
 	/////////////////////////////////
 	// INLINE METHODS
 	/////////////////////////////////
-	double LabelRegion::x1( void ) const
+	inline libglabels::Distance LabelRegion::x1( void ) const
 	{
 		return mX1;
 	}
 
 
-	void LabelRegion::setX1( double value )
+	inline void LabelRegion::setX1( const libglabels::Distance& value )
 	{
 		mX1 = value;
 	}
 
 
-	double LabelRegion::y1( void ) const
+	inline libglabels::Distance LabelRegion::y1( void ) const
 	{
 		return mY1;
 	}
 
 
-	void LabelRegion::setY1( double value )
+	inline void LabelRegion::setY1( const libglabels::Distance& value )
 	{
 		mY1 = value;
 	}
 
 
-	double LabelRegion::x2( void ) const
+	inline libglabels::Distance LabelRegion::x2( void ) const
 	{
 		return mX2;
 	}
 
 
-	void LabelRegion::setX2( double value )
+	inline void LabelRegion::setX2( const libglabels::Distance& value )
 	{
 		mX2 = value;
 	}
 
 
-	double LabelRegion::y2( void ) const
+	inline libglabels::Distance LabelRegion::y2( void ) const
 	{
 		return mY2;
 	}
 
 
-	void LabelRegion::setY2( double value )
+	inline void LabelRegion::setY2( const libglabels::Distance& value )
 	{
 		mY2 = value;
 	}

glabels/NewLabelDialog.cpp

@@ -1,6 +1,6 @@
 /*  NewLabelDialog.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -165,7 +165,7 @@ namespace glabels
 			QString pgSizeString = libglabels::Db::lookupPaperNameFromId( tmplate->paperId() );
 			pageSizeLabel->setText( pgSizeString );
 
-			QString labelSizeString = frame->sizeDescription( libglabels::Units::inch() );
+			QString labelSizeString = frame->sizeDescription( libglabels::Distance::Units::IN );
 			labelSizeLabel->setText( labelSizeString );
 
 			QString layoutString = frame->layoutDescription();

glabels/ObjectEditor.cpp

@@ -1,6 +1,6 @@
 /*  ObjectEditor.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -78,7 +78,7 @@ namespace glabels
 		{
 			mBlocked = true;
 			
-			lineWidthSpin->setValue( mObject->lineWidth() );
+			lineWidthSpin->setValue( mObject->lineWidth().pt() );
 			lineColorButton->setColorNode( mObject->lineColorNode() );
 			fillColorButton->setColorNode( mObject->fillColorNode() );
 
@@ -93,8 +93,8 @@ namespace glabels
 		{
 			mBlocked = true;
 			
-			posXSpin->setValue( mObject->x0() );
+			posXSpin->setValue( mObject->x0().in() );
-			posYSpin->setValue( mObject->y0() );
+			posYSpin->setValue( mObject->y0().in() );
 
 			mBlocked = false;			
 		}
@@ -107,8 +107,8 @@ namespace glabels
 		{
 			mBlocked = true;
 			
-			sizeWSpin->setValue( mObject->w() );
+			sizeWSpin->setValue( mObject->w().in() );
-			sizeHSpin->setValue( mObject->h() );
+			sizeHSpin->setValue( mObject->h().in() );
 
 			mBlocked = false;			
 		}
@@ -122,8 +122,8 @@ namespace glabels
 			mBlocked = true;
 			
 			shadowEnableCheck->setChecked( mObject->shadow() );
-			shadowXSpin->setValue( mObject->shadowX() );
+			shadowXSpin->setValue( mObject->shadowX().in() );
-			shadowYSpin->setValue( mObject->shadowY() );
+			shadowYSpin->setValue( mObject->shadowY().in() );
 			shadowColorButton->setColorNode( mObject->shadowColorNode() );
 			shadowOpacitySpin->setValue( 100*mObject->shadowOpacity() );
 
@@ -138,12 +138,12 @@ namespace glabels
 		{
 			mBlocked = true;
 
-			double whMax = std::max( mModel->w(), mModel->h() );
+			libglabels::Distance whMax = std::max( mModel->w(), mModel->h() );
 			
-			posXSpin->setRange( -whMax, 2*whMax );
+			posXSpin->setRange( -whMax.in(), 2*whMax.in() );
-			posYSpin->setRange( -whMax, 2*whMax );
+			posYSpin->setRange( -whMax.in(), 2*whMax.in() );
-			sizeWSpin->setRange( 0, 2*whMax );
+			sizeWSpin->setRange( 0, 2*whMax.in() );
-			sizeHSpin->setRange( 0, 2*whMax );
+			sizeHSpin->setRange( 0, 2*whMax.in() );
 			
 			mBlocked = false;			
 		}
@@ -236,7 +236,7 @@ namespace glabels
 		{
 			mBlocked = true;
 
-			mObject->setLineWidth( lineWidthSpin->value() );
+			mObject->setLineWidth( libglabels::Distance::pt(lineWidthSpin->value()) );
 			mObject->setLineColorNode( lineColorButton->colorNode() );
 
 			mBlocked = false;
@@ -276,25 +276,25 @@ namespace glabels
 		{
 			mBlocked = true;
 			
+			libglabels::Distance spinW = libglabels::Distance::in(sizeWSpin->value());
+			libglabels::Distance spinH = libglabels::Distance::in(sizeHSpin->value());
+				
 			if ( sizeAspectCheck->isChecked() )
 			{
-				double spinW = sizeWSpin->value();
-				double spinH = sizeHSpin->value();
-				
 				if ( fabs(spinW - mObject->w()) > fabs(spinH - mObject->h()) )
 				{
 					mObject->setWHonorAspect( spinW );
-					sizeHSpin->setValue( mObject->h() );
+					sizeHSpin->setValue( mObject->h().in() );
 				}
 				else
 				{
 					mObject->setHHonorAspect( spinH );
-					sizeWSpin->setValue( mObject->w() );
+					sizeWSpin->setValue( mObject->w().in() );
 				}
 			}
 			else
 			{
-				mObject->setSize( sizeWSpin->value(), sizeHSpin->value() );
+				mObject->setSize( spinW, spinH );
 			}
 			
 			mBlocked = false;
@@ -309,8 +309,8 @@ namespace glabels
 			mBlocked = true;
 
 			mObject->setShadow( shadowEnableCheck->isChecked() );
-			mObject->setShadowX( shadowXSpin->value() );
+			mObject->setShadowX( libglabels::Distance::in(shadowXSpin->value()) );
-			mObject->setShadowY( shadowYSpin->value() );
+			mObject->setShadowY( libglabels::Distance::in(shadowYSpin->value()) );
 			mObject->setShadowColorNode( shadowColorButton->colorNode() );
 			mObject->setShadowOpacity( shadowOpacitySpin->value()/100.0 );
 

glabels/Outline.cpp

@@ -1,6 +1,6 @@
 /*  Outline.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -78,10 +78,10 @@ void glabels::Outline::draw( QPainter* painter ) const
 	painter->setBrush( Qt::NoBrush );
 
 	painter->setPen( mPen1 );
-	painter->drawRect( QRectF( 0, 0, mOwner->w(), mOwner->h() ) );
+	painter->drawRect( QRectF( 0, 0, mOwner->w().pt(), mOwner->h().pt() ) );
 
 	painter->setPen( mPen2 );
-	painter->drawRect( QRectF( 0, 0, mOwner->w(), mOwner->h() ) );
+	painter->drawRect( QRectF( 0, 0, mOwner->w().pt(), mOwner->h().pt() ) );
 
 	painter->restore();
 }
@@ -97,10 +97,10 @@ QPainterPath glabels::Outline::hoverPath( double scale ) const
 	QPainterPath path;
 
 	path.addRect( -s*slopPixels, -s*slopPixels,
-		      mOwner->w()+s*2*slopPixels, mOwner->h()+s*2*slopPixels );
+		      mOwner->w().pt()+s*2*slopPixels, mOwner->h().pt()+s*2*slopPixels );
 	path.closeSubpath();
 	path.addRect( s*slopPixels, s*slopPixels,
-		      mOwner->w()-s*2*slopPixels, mOwner->h()-s*2*slopPixels );
+		      mOwner->w().pt()-s*2*slopPixels, mOwner->h().pt()-s*2*slopPixels );
 	
 	return path;
 }

glabels/Outline.h

@@ -1,6 +1,6 @@
 /*  Outline.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *

glabels/PageRenderer.cpp

@@ -1,6 +1,6 @@
 /*  PageRenderer.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2014  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -104,7 +104,7 @@ namespace glabels
 	{
 		if ( mModel )
 		{
-			return QRectF( 0, 0, mModel->tmplate()->pageWidth(), mModel->tmplate()->pageHeight() );
+			return QRectF( 0, 0, mModel->tmplate()->pageWidth().pt(), mModel->tmplate()->pageHeight().pt() );
 		}
 		else
 		{
@@ -178,7 +178,7 @@ namespace glabels
 		for ( int i = iStart; i < iEnd; i++ )
 		{
 			painter->save();
-			painter->translate( mOrigins[i].x(), mOrigins[i].y() );
+			painter->translate( mOrigins[i].x().pt(), mOrigins[i].y().pt() );
 			
 			painter->save();
 			clipLabel( painter );
@@ -238,12 +238,12 @@ namespace glabels
 		if ( mModel->rotate() )
 		{
 			painter->rotate( 90.0 );
-			painter->translate( 0, mModel->h() );
+			painter->translate( 0, mModel->h().pt() );
 		}
 
 		if ( mPrintReverse )
 		{
-			painter->translate( mModel->w(), 0 );
+			painter->translate( mModel->w().pt(), 0 );
 			painter->scale( -1, 1 );
 		}
 

glabels/PageRenderer.h

@@ -1,6 +1,6 @@
 /*  PageRenderer.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *

glabels/Preview.cpp

@@ -1,6 +1,6 @@
 /*  Preview.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -79,12 +79,12 @@ namespace glabels
 		if ( mModel != NULL )
 		{
 			// Set scene up with a 5% margin around paper
-			double x = -0.05 * mModel->tmplate()->pageWidth();
+			libglabels::Distance x = -0.05 * mModel->tmplate()->pageWidth();
-			double y = -0.05 * mModel->tmplate()->pageHeight();
+			libglabels::Distance y = -0.05 * mModel->tmplate()->pageHeight();
-			double w = 1.10 * mModel->tmplate()->pageWidth();
+			libglabels::Distance w = 1.10 * mModel->tmplate()->pageWidth();
-			double h = 1.10 * mModel->tmplate()->pageHeight();
+			libglabels::Distance h = 1.10 * mModel->tmplate()->pageHeight();
 
-			mScene->setSceneRect( x, y, w, h );
+			mScene->setSceneRect( x.pt(), y.pt(), w.pt(), h.pt() );
 			fitInView( mScene->sceneRect(), Qt::KeepAspectRatio );
 
 			drawPaper( mModel->tmplate()->pageWidth(), mModel->tmplate()->pageHeight() );
@@ -128,7 +128,7 @@ namespace glabels
 	///
 	/// Draw Paper
 	///
-	void Preview::drawPaper( double pw, double ph )
+	void Preview::drawPaper( const libglabels::Distance& pw, const libglabels::Distance& ph )
 	{
 		QGraphicsDropShadowEffect *shadowEffect = new QGraphicsDropShadowEffect();
 		shadowEffect->setColor( shadowColor );
@@ -140,7 +140,7 @@ namespace glabels
 		pen.setCosmetic( true );
 		pen.setWidthF( paperOutlineWidthPixels );
 
-		QGraphicsRectItem *pageItem = new QGraphicsRectItem( 0, 0, pw, ph );
+		QGraphicsRectItem *pageItem = new QGraphicsRectItem( 0, 0, pw.pt(), ph.pt() );
 		pageItem->setBrush( brush );
 		pageItem->setPen( pen );
 		pageItem->setGraphicsEffect( shadowEffect );
@@ -166,7 +166,9 @@ namespace glabels
 	///
 	/// Draw a Single Label at x,y
 	///
-	void Preview::drawLabel( double x, double y, const QPainterPath &path )
+	void Preview::drawLabel( const libglabels::Distance& x,
+				 const libglabels::Distance& y,
+				 const QPainterPath&         path )
 	{
 		QBrush brush( Qt::NoBrush );
 		QPen pen( labelOutlineColor );
@@ -177,7 +179,7 @@ namespace glabels
 		QGraphicsPathItem *labelOutlineItem  = new QGraphicsPathItem( path );
 		labelOutlineItem->setBrush( brush );
 		labelOutlineItem->setPen( pen );
-		labelOutlineItem->setPos( x, y );
+		labelOutlineItem->setPos( x.pt(), y.pt() );
 
 		mScene->addItem( labelOutlineItem );
 	}

glabels/Preview.h

@@ -1,6 +1,6 @@
 /*  Preview.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -67,9 +67,12 @@ namespace glabels
 		/////////////////////////////////
 	private:
 		void clearScene();
-		void drawPaper( double pw, double ph );
+		void drawPaper( const libglabels::Distance& pw, const libglabels::Distance& ph );
 		void drawLabels();
-		void drawLabel( double x, double y, const QPainterPath &path );
+		void drawLabel( const libglabels::Distance& x,
+		                const libglabels::Distance& y,
+		                const QPainterPath&         path );
+		
 		void drawPreviewOverlay();
 
 

glabels/PrintView.cpp

@@ -1,6 +1,6 @@
 /*  PrintView.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -138,7 +138,7 @@ namespace glabels
 	///
 	void PrintView::onPrintButtonClicked()
 	{
-		QSizeF pageSize( mModel->tmplate()->pageWidth(), mModel->tmplate()->pageHeight() );
+		QSizeF pageSize( mModel->tmplate()->pageWidth().pt(), mModel->tmplate()->pageHeight().pt() );
 		mPrinter->setPaperSize( pageSize, QPrinter::Point );
 		mPrinter->setFullPage( true );
 		mPrinter->setPageMargins( 0, 0, 0, 0, QPrinter::Point );

glabels/PrintView.h

@@ -1,6 +1,6 @@
 /*  PrintView.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *

glabels/SimplePreview.cpp

@@ -1,6 +1,6 @@
 /*  SimplePreview.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -110,12 +110,12 @@ namespace glabels
 		if ( mTmplate != NULL )
 		{
 			// Set scene up with a 5% margin around paper
-			double x = -0.05 * mTmplate->pageWidth();
+			libglabels::Distance x = -0.05 * mTmplate->pageWidth();
-			double y = -0.05 * mTmplate->pageHeight();
+			libglabels::Distance y = -0.05 * mTmplate->pageHeight();
-			double w = 1.10 * mTmplate->pageWidth();
+			libglabels::Distance w = 1.10 * mTmplate->pageWidth();
-			double h = 1.10 * mTmplate->pageHeight();
+			libglabels::Distance h = 1.10 * mTmplate->pageHeight();
 
-			mScene->setSceneRect( x, y, w, h );
+			mScene->setSceneRect( x.pt(), y.pt(), w.pt(), h.pt() );
 			fitInView( mScene->sceneRect(), Qt::KeepAspectRatio );
 
 			drawPaper( mTmplate->pageWidth(), mTmplate->pageHeight() );
@@ -141,7 +141,7 @@ namespace glabels
 	///
 	/// Draw Paper
 	///
-	void SimplePreview::drawPaper( double pw, double ph )
+	void SimplePreview::drawPaper( const libglabels::Distance& pw, const libglabels::Distance& ph )
 	{
 		QGraphicsDropShadowEffect *shadowEffect = new QGraphicsDropShadowEffect();
 		shadowEffect->setColor( shadowColor );
@@ -153,7 +153,7 @@ namespace glabels
 		pen.setCosmetic( true );
 		pen.setWidthF( paperOutlineWidthPixels );
 
-		QGraphicsRectItem *pageItem = new QGraphicsRectItem( 0, 0, pw, ph );
+		QGraphicsRectItem *pageItem = new QGraphicsRectItem( 0, 0, pw.pt(), ph.pt() );
 		pageItem->setBrush( brush );
 		pageItem->setPen( pen );
 		pageItem->setGraphicsEffect( shadowEffect );
@@ -179,7 +179,9 @@ namespace glabels
 	///
 	/// Draw a Single Label at x,y
 	///
-	void SimplePreview::drawLabel( double x, double y, const QPainterPath &path )
+	void SimplePreview::drawLabel( const libglabels::Distance& x,
+				       const libglabels::Distance& y,
+				       const QPainterPath&         path )
 	{
 		QBrush brush( labelColor );
 		QPen pen( labelOutlineColor );
@@ -189,7 +191,7 @@ namespace glabels
 		QGraphicsPathItem *labelItem  = new QGraphicsPathItem( path );
 		labelItem->setBrush( brush );
 		labelItem->setPen( pen );
-		labelItem->setPos( x, y );
+		labelItem->setPos( x.pt(), y.pt() );
 
 		mScene->addItem( labelItem );
 	}
@@ -202,32 +204,32 @@ namespace glabels
 	{
 		libglabels::Frame *frame = mTmplate->frames().first();
 
-		double w = frame->w();
+		libglabels::Distance w = frame->w();
-		double h = frame->h();
+		libglabels::Distance h = frame->h();
 
-		double min = ( w < h ) ? w : h;
+		libglabels::Distance min = libglabels::min( w, h );
 
 		QPen pen( arrowColor );
-		pen.setWidthF( 0.25*min*arrowScale );
+		pen.setWidthF( 0.25*min.pt()*arrowScale );
 		pen.setCapStyle( Qt::FlatCap );
 		pen.setJoinStyle( Qt::MiterJoin );
 
 		QBrush brush( upColor );
 
 		libglabels::Point origin = frame->getOrigins().first();
-		double x0 = origin.x();
+		libglabels::Distance x0 = origin.x();
-		double y0 = origin.y();
+		libglabels::Distance y0 = origin.y();
 
 		QPainterPath path;
-		path.moveTo( 0,                  min*arrowScale/3 );
+		path.moveTo( 0,                       min.pt()*arrowScale/3 );
-		path.lineTo( 0,                 -min*arrowScale   );
+		path.lineTo( 0,                      -min.pt()*arrowScale   );
-		path.moveTo( -min*arrowScale/2, -min*arrowScale/2 );
+		path.moveTo( -min.pt()*arrowScale/2, -min.pt()*arrowScale/2 );
-		path.lineTo( 0,                 -min*arrowScale   );
+		path.lineTo( 0,                      -min.pt()*arrowScale   );
-		path.lineTo(  min*arrowScale/2, -min*arrowScale/2 );
+		path.lineTo(  min.pt()*arrowScale/2, -min.pt()*arrowScale/2 );
 
 		QGraphicsPathItem *arrowItem = new QGraphicsPathItem( path );
 		arrowItem->setPen( pen );
-		arrowItem->setPos( x0+w/2, y0+h/2 );
+		arrowItem->setPos( (x0+w/2).pt(), (y0+h/2).pt() );
 		if ( mRotateFlag )
 		{
 			arrowItem->setRotation( 90 );
@@ -235,17 +237,17 @@ namespace glabels
 
 		QGraphicsSimpleTextItem *upItem = new QGraphicsSimpleTextItem( tr("Up") );
 		upItem->setBrush( brush );
-		upItem->setFont( QFont( upFontFamily, min*upScale, QFont::Bold ) );
+		upItem->setFont( QFont( upFontFamily, min.pt()*upScale, QFont::Bold ) );
-		upItem->setPos( x0+w/2, y0+h/2 );
+		upItem->setPos( (x0+w/2).pt(), (y0+h/2).pt() );
 		QRectF rect = upItem->boundingRect();
 		if ( mRotateFlag )
 		{
-			upItem->setPos( upItem->x()-min/8, upItem->y()-rect.width()/2 );
+			upItem->setPos( upItem->x()-min.pt()/8, upItem->y()-rect.width()/2 );
 			upItem->setRotation( 90 );
 		}
 		else
 		{
-			upItem->setPos( upItem->x()-rect.width()/2, upItem->y()+min/8 );
+			upItem->setPos( upItem->x()-rect.width()/2, upItem->y()+min.pt()/8 );
 		}
 
 		mScene->addItem( arrowItem );

glabels/SimplePreview.h

@@ -1,6 +1,6 @@
 /*  SimplePreview.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -68,9 +68,11 @@ namespace glabels
 	private:
 		void update();
 		void clearScene();
-		void drawPaper( double pw, double ph );
+		void drawPaper( const libglabels::Distance& pw, const libglabels::Distance& ph );
 		void drawLabels();
-		void drawLabel( double x, double y, const QPainterPath &path );
+		void drawLabel( const libglabels::Distance& x,
+		                const libglabels::Distance& y,
+		                const QPainterPath&         path );
 		void drawArrow();
 
 

glabels/View.cpp

@@ -1,6 +1,6 @@
 /*  View.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -59,7 +59,7 @@ namespace
 
 	const QColor  gridLineColor( 192, 192, 192 );
 	const double  gridLineWidthPixels = 1;
-	const double  gridSpacing = 9; // TODO: determine from locale.
+	const libglabels::Distance gridSpacing = libglabels::Distance::pt(9); // TODO: determine from locale.
 
 	const QColor  markupLineColor( 240, 99, 99 );
 	const double  markupLineWidthPixels = 1;
@@ -235,8 +235,8 @@ glabels::View::zoomToFit()
 	double wPixels = mScrollArea->maximumViewportSize().width();
 	double hPixels = mScrollArea->maximumViewportSize().height();
 	
-	double x_scale = ( wPixels - ZOOM_TO_FIT_PAD ) / mModel->w();
+	double x_scale = ( wPixels - ZOOM_TO_FIT_PAD ) / mModel->w().pt();
-	double y_scale = ( hPixels - ZOOM_TO_FIT_PAD ) / mModel->h();
+	double y_scale = ( hPixels - ZOOM_TO_FIT_PAD ) / mModel->h().pt();
 	double newZoom = min( x_scale, y_scale ) * PTS_PER_INCH / physicalDpiX();
 
 	// Limits
@@ -279,7 +279,8 @@ glabels::View::setZoomReal( double zoom, bool zoomToFitFlag )
 	/* Actual scale depends on DPI of display (assume DpiX == DpiY). */
 	mScale = zoom * physicalDpiX() / PTS_PER_INCH;
 
-	setMinimumSize( mScale*mModel->w() + ZOOM_TO_FIT_PAD, mScale*mModel->h() + ZOOM_TO_FIT_PAD );
+	setMinimumSize( mScale*mModel->w().pt() + ZOOM_TO_FIT_PAD,
+			mScale*mModel->h().pt() + ZOOM_TO_FIT_PAD );
 
 	/* Adjust origin to center label in widget. */
 	mX0 = (width()/mScale - mModel->w()) / 2;
@@ -354,11 +355,11 @@ glabels::View::mousePressEvent( QMouseEvent* event )
 		QTransform transform;
 
 		transform.scale( mScale, mScale );
-		transform.translate( mX0, mY0 );
+		transform.translate( mX0.pt(), mY0.pt() );
 
 		QPointF pWorld = transform.inverted().map( event->posF() );
-		double xWorld = pWorld.x();
+		libglabels::Distance xWorld = libglabels::Distance::pt( pWorld.x() );
-		double yWorld = pWorld.y();
+		libglabels::Distance yWorld = libglabels::Distance::pt( pWorld.y() );
 
 		
 		if ( event->button() & Qt::LeftButton )
@@ -523,11 +524,11 @@ glabels::View::mouseMoveEvent( QMouseEvent* event )
 		QTransform transform;
 
 		transform.scale( mScale, mScale );
-		transform.translate( mX0, mY0 );
+		transform.translate( mX0.pt(), mY0.pt() );
 
 		QPointF pWorld = transform.inverted().map( event->posF() );
-		double xWorld = pWorld.x();
+		libglabels::Distance xWorld = libglabels::Distance::pt( pWorld.x() );
-		double yWorld = pWorld.y();
+		libglabels::Distance yWorld = libglabels::Distance::pt( pWorld.y() );
 
 		
 		/*
@@ -624,11 +625,11 @@ glabels::View::mouseReleaseEvent( QMouseEvent* event )
 		QTransform transform;
 
 		transform.scale( mScale, mScale );
-		transform.translate( mX0, mY0 );
+		transform.translate( mX0.pt(), mY0.pt() );
 
 		QPointF pWorld = transform.inverted().map( event->posF() );
-		double xWorld = pWorld.x();
+		libglabels::Distance xWorld = libglabels::Distance::pt( pWorld.x() );
-		double yWorld = pWorld.y();
+		libglabels::Distance yWorld = libglabels::Distance::pt( pWorld.y() );
 
 		
 		if ( event->button() & Qt::LeftButton )
@@ -703,15 +704,16 @@ glabels::View::leaveEvent( QEvent* event )
 /// Handle resize motion
 ///
 void
-glabels::View::handleResizeMotion( double xWorld, double yWorld )
+glabels::View::handleResizeMotion( const libglabels::Distance& xWorld,
+				   const libglabels::Distance& yWorld )
 {
-	QPointF p( xWorld, yWorld );
+	QPointF p( xWorld.pt(), yWorld.pt() );
 	Handle::Location location = mResizeHandle->location();
 	
 	/*
 	 * Change point to object relative coordinates
 	 */
-	p -= QPointF( mResizeObject->x0(), mResizeObject->y0() );
+	p -= QPointF( mResizeObject->x0().pt(), mResizeObject->y0().pt() );
 	p = mResizeObject->matrix().inverted().map( p );
 
 	/*
@@ -723,8 +725,8 @@ glabels::View::handleResizeMotion( double xWorld, double yWorld )
 	double x1 = 0.0;
 	double y1 = 0.0;
 
-	double x2 = mResizeObject->w();
+	double x2 = mResizeObject->w().pt();
-	double y2 = mResizeObject->h();
+	double y2 = mResizeObject->h().pt();
 
 	/*
 	 * Calculate new size
@@ -793,20 +795,22 @@ glabels::View::handleResizeMotion( double xWorld, double yWorld )
 			{
 			case Handle::E:
 			case Handle::W:
-				mResizeObject->setWHonorAspect( w );
+				mResizeObject->setWHonorAspect( libglabels::Distance::pt(w) );
 				break;
 			case Handle::N:
 			case Handle::S:
-				mResizeObject->setHHonorAspect( h );
+				mResizeObject->setHHonorAspect( libglabels::Distance::pt(h) );
 				break;
 			default:
-				mResizeObject->setSizeHonorAspect( w, h );
+				mResizeObject->setSizeHonorAspect( libglabels::Distance::pt(w),
+								   libglabels::Distance::pt(h) );
 				break;
 			}
 		}
 		else
 		{
-			mResizeObject->setSize( w, h );
+			mResizeObject->setSize( libglabels::Distance::pt(w),
+						libglabels::Distance::pt(h) );
 		}
 
 		/*
@@ -815,16 +819,16 @@ glabels::View::handleResizeMotion( double xWorld, double yWorld )
 		switch ( location )
 		{
 		case Handle::NW:
-			x0 += x2 - mResizeObject->w();
+			x0 += x2 - mResizeObject->w().pt();
-			y0 += y2 - mResizeObject->h();
+			y0 += y2 - mResizeObject->h().pt();
 			break;
 		case Handle::N:
 		case Handle::NE:
-			y0 += y2 - mResizeObject->h();
+			y0 += y2 - mResizeObject->h().pt();
 			break;
 		case Handle::W:
 		case Handle::SW:
-			x0 += x2 - mResizeObject->w();
+			x0 += x2 - mResizeObject->w().pt();
 			break;
 		defaule:
 			break;
@@ -832,7 +836,8 @@ glabels::View::handleResizeMotion( double xWorld, double yWorld )
 	}
 	else
 	{
-		mResizeObject->setSize( w, h );
+		mResizeObject->setSize( libglabels::Distance::pt(w),
+					libglabels::Distance::pt(h) );
 	}
 
 	/*
@@ -840,8 +845,9 @@ glabels::View::handleResizeMotion( double xWorld, double yWorld )
 	 */
 	QPointF p0( x0, y0 );
 	p0 = mResizeObject->matrix().map( p0 );
-	p0 += QPointF( mResizeObject->x0(), mResizeObject->y0() );
+	p0 += QPointF( mResizeObject->x0().pt(), mResizeObject->y0().pt() );
-	mResizeObject->setPosition( p0.x(), p0.y() );
+	mResizeObject->setPosition( libglabels::Distance::pt(p0.x()),
+				    libglabels::Distance::pt(p0.y()) );
 }
 
 
@@ -866,7 +872,7 @@ glabels::View::paintEvent( QPaintEvent* event )
 
 		/* Transform. */
 		painter.scale( mScale, mScale );
-		painter.translate( mX0, mY0 );
+		painter.translate( mX0.pt(), mY0.pt() );
 
 		/* Now draw from the bottom layer up. */
 		drawBgLayer( &painter );
@@ -899,7 +905,7 @@ glabels::View::drawBgLayer( QPainter* painter )
 	if ( mModel->rotate() )
 	{
 		painter->rotate( -90 );
-		painter->translate( -mModel->frame()->w(), 0 );
+		painter->translate( -mModel->frame()->w().pt(), 0 );
 	}
 	painter->drawPath( mModel->frame()->path() );
 
@@ -917,7 +923,7 @@ glabels::View::drawBgLayer( QPainter* painter )
 	if ( mModel->rotate() )
 	{
 		painter->rotate( -90 );
-		painter->translate( -mModel->frame()->w(), 0 );
+		painter->translate( -mModel->frame()->w().pt(), 0 );
 	}
 	painter->drawPath( mModel->frame()->path() );
 
@@ -933,10 +939,10 @@ glabels::View::drawGridLayer( QPainter* painter )
 {
 	if ( mGridVisible )
 	{
-		double w = mModel->frame()->w();
+		libglabels::Distance w = mModel->frame()->w();
-		double h = mModel->frame()->h();
+		libglabels::Distance h = mModel->frame()->h();
 
-		double x0, y0;
+		libglabels::Distance x0, y0;
 		if ( dynamic_cast<const libglabels::FrameRect*>( mModel->frame() ) )
 		{
 			x0 = gridSpacing;
@@ -953,7 +959,7 @@ glabels::View::drawGridLayer( QPainter* painter )
 		if ( mModel->rotate() )
 		{
 			painter->rotate( -90 );
-			painter->translate( -mModel->frame()->w(), 0 );
+			painter->translate( -mModel->frame()->w().pt(), 0 );
 		}
 
 		painter->setClipPath( mModel->frame()->path() );
@@ -962,14 +968,14 @@ glabels::View::drawGridLayer( QPainter* painter )
 		pen.setCosmetic( true );
 		painter->setPen( pen );
 
-		for ( double x = x0; x < w; x += gridSpacing )
+		for ( libglabels::Distance x = x0; x < w; x += gridSpacing )
 		{
-			painter->drawLine( x, 0, x, h );
+			painter->drawLine( x.pt(), 0, x.pt(), h.pt() );
 		}
 
-		for ( double y = y0; y < h; y += gridSpacing )
+		for ( libglabels::Distance y = y0; y < h; y += gridSpacing )
 		{
-			painter->drawLine( 0, y, w, y );
+			painter->drawLine( 0, y.pt(), w.pt(), y.pt() );
 		}
 
 		painter->restore();
@@ -993,7 +999,7 @@ glabels::View::drawMarkupLayer( QPainter* painter )
 		if ( mModel->rotate() )
 		{
 			painter->rotate( -90 );
-			painter->translate( -mModel->frame()->w(), 0 );
+			painter->translate( -mModel->frame()->w().pt(), 0 );
 		}
 
 		foreach( libglabels::Markup* markup, mModel->frame()->markups() )
@@ -1035,7 +1041,7 @@ glabels::View::drawFgLayer( QPainter* painter )
 	if ( mModel->rotate() )
 	{
 		painter->rotate( -90 );
-		painter->translate( -mModel->frame()->w(), 0 );
+		painter->translate( -mModel->frame()->w().pt(), 0 );
 	}
 	painter->drawPath( mModel->frame()->path() );
 

glabels/View.h

@@ -1,6 +1,6 @@
 /*  View.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -56,7 +56,7 @@ namespace glabels
 	signals:
 		void contextMenuActivate();
 		void zoomChanged();
-		void pointerMoved( double x, double y );
+		void pointerMoved( const libglabels::Distance& x, const libglabels::Distance& y );
 		void pointerExited();
 		void modeChanged();
 
@@ -128,7 +128,8 @@ namespace glabels
 		// Private methods
 		/////////////////////////////////////
 	private:
-		void handleResizeMotion( double xWorld, double yWorld );
+		void handleResizeMotion( const libglabels::Distance& xWorld,
+		                         const libglabels::Distance& yWorld );
 
 		void drawBgLayer( QPainter* painter );
 		void drawGridLayer( QPainter* painter );
@@ -174,8 +175,8 @@ namespace glabels
 		double               mZoom;
 		bool                 mZoomToFitFlag;
 		double               mScale;
-		double              mX0;
+		libglabels::Distance mX0;
-		double              mY0;
+		libglabels::Distance mY0;
 
 		bool                 mMarkupVisible;
 		bool                 mGridVisible;
@@ -191,8 +192,8 @@ namespace glabels
 		LabelRegion          mSelectRegion;
 
 		/* ArrowMove state */
-		double              mMoveLastX;
+		libglabels::Distance mMoveLastX;
-		double              mMoveLastY;
+		libglabels::Distance mMoveLastY;
 
 		/* ArrowResize state */
 		LabelModelObject*    mResizeObject;
@@ -202,8 +203,8 @@ namespace glabels
 		/* CreateDrag state */
 		CreateType           mCreateObjectType;
 		LabelModelObject*    mCreateObject;
-		double              mCreateX0;
+		libglabels::Distance mCreateX0;
-		double              mCreateY0;
+		libglabels::Distance mCreateY0;
 
 
 	};

glabels/XmlLabelParser.cpp

@@ -1,6 +1,6 @@
 /*  XmlLabelParser.cpp
  *
- *  Copyright (C) 2014  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2014-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -374,7 +374,7 @@ glabels::XmlLabelParser::parseShadowAttrs( const QDomElement &node, LabelModelOb
 
 		object->setShadowColorNode( ColorNode( field_flag, color, key ) );
 
-		object->setShadowOpacity( XmlUtil::getLengthAttr( node, "shadow_y", 1.0 ) );
+		object->setShadowOpacity( XmlUtil::getDoubleAttr( node, "shadow_opacity", 1.0 ) );
 	}
 }
 

glabels/XmlLabelParser.h

@@ -1,6 +1,6 @@
 /*  XmlLabelParser.h
  *
- *  Copyright (C) 2014  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2014-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *

libglabels/CMakeLists.txt

@@ -8,7 +8,6 @@ set (libglabels_sources
   Category.cpp
   Paper.cpp
   Vendor.cpp
-  Units.cpp
   Point.cpp
   Layout.cpp
   Markup.cpp
@@ -27,6 +26,7 @@ set (libglabels_sources
   XmlTemplateCreator.cpp
   XmlUtil.cpp
   MiniPreviewPixmap.cpp
+  Distance.cpp
 )
 
 set (libglabels_qobject_headers

libglabels/Constants.h

@@ -1,6 +1,6 @@
-/*  Units.inl
+/*  Constants.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -18,16 +18,19 @@
  *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifndef libglabels_Constants_h
+#define libglabels_Constants_h
+
 
 namespace libglabels
 {
 
-	inline QString Units::id() const { return mId; }
+	const double PTS_PER_PT    =  1.0;
-
+	const double PTS_PER_INCH  = 72.0;
-	inline QString Units::name() const { return mName; }
+	const double PTS_PER_MM    =  2.83464566929;
-
+	const double PTS_PER_CM    =  (10.0*PTS_PER_MM);
-	inline double Units::pointsPerUnit() const { return mPointsPerUnit; }
+	const double PTS_PER_PICA  =  (1.0/12.0);
-
-	inline double Units::unitsPerPoint() const { return mUnitsPerPoint; }
 
 }
+
+#endif // libglabels_Constants_h

libglabels/Db.cpp

@@ -1,6 +1,6 @@
 /*  Db.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -485,8 +485,8 @@ namespace libglabels
 			qDebug() << "paper "
 				 << "id="       << paper->id()          << ", "
 				 << "name="     << paper->name()        << ", "
-				 << "width="    << paper->width()    << "pts, "
+				 << "width="    << paper->width().pt()  << "pts, "
-				 << "height="   << paper->height()   << "pts, "
+				 << "height="   << paper->height().pt() << "pts, "
 				 << "pwg_size=" << paper->pwgSize();
 		}
 

libglabels/Distance.cpp

@@ -0,0 +1,255 @@
+/*  Distance.cpp
+ *
+ *  Copyright (C) 2016  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "Distance.h"
+
+#include <QTextStream>
+#include <QtDebug>
+
+
+namespace libglabels
+{
+
+	QString Distance::toId( Units units )
+	{
+		QString idString;
+		
+		switch (units)
+		{
+		case Units::PT:
+			idString = "pt";
+			break;
+		case Units::IN:
+			idString = "in";
+			break;
+		case Units::MM:
+			idString = "mm";
+			break;
+		case Units::CM:
+			idString = "cm";
+			break;
+		case Units::PC:
+			idString = "pc";
+			break;
+		}
+
+		return idString;
+	}
+	
+
+	QString Distance::toTrName( Units units )
+	{
+		QString nameString;
+		
+		switch (units)
+		{
+		case Units::PT:
+			nameString = tr("points");
+			break;
+		case Units::IN:
+			nameString = tr("inches");
+			break;
+		case Units::MM:
+			nameString = tr("mm");
+			break;
+		case Units::CM:
+			nameString = tr("cm");
+			break;
+		case Units::PC:
+			nameString = tr("picas");
+			break;
+		}
+
+		return nameString;
+	}
+	
+
+	bool Distance::isIdValid( const QString& unitsId )
+	{
+		bool retValue = false;
+		
+		if ( unitsId == "pt" )
+		{
+			retValue = true;
+		}
+		else if ( unitsId == "in" )
+		{
+			retValue = true;
+		}
+		else if ( unitsId == "mm" )
+		{
+			retValue = true;
+		}
+		else if ( unitsId == "cm" )
+		{
+			retValue = true;
+		}
+		else if ( unitsId == "pc" )
+		{
+			retValue = true;
+		}
+
+		return retValue;
+	}
+
+	
+	Distance::Units Distance::toUnits( const QString& unitsId )
+	{
+		Units units;
+
+		if ( unitsId == "pt" )
+		{
+			units = Units::PT;
+		}
+		else if ( unitsId == "in" )
+		{
+			units = Units::IN;
+		}
+		else if ( unitsId == "mm" )
+		{
+			units = Units::MM;
+		}
+		else if ( unitsId == "cm" )
+		{
+			units = Units::CM;
+		}
+		else if ( unitsId == "pc" )
+		{
+			units = Units::PC;
+		}
+		else
+		{
+			units = Units::PT;
+		}
+
+		return units;
+	}
+
+	
+	Distance::Distance( double d, Units units )
+	{
+		switch (units)
+		{
+		case Units::PT:
+			mDPts = d;
+			break;
+		case Units::IN:
+			mDPts = d * PTS_PER_INCH;
+			break;
+		case Units::MM:
+			mDPts = d * PTS_PER_MM;
+			break;
+		case Units::CM:
+			mDPts = d * PTS_PER_CM;
+			break;
+		case Units::PC:
+			mDPts = d * PTS_PER_PICA;
+			break;
+		}
+	}
+
+
+	Distance::Distance( double d, const QString& unitsId )
+	{
+		Units units = toUnits( unitsId );
+		
+		switch (units)
+		{
+		case Units::PT:
+			mDPts = d;
+			break;
+		case Units::IN:
+			mDPts = d * PTS_PER_INCH;
+			break;
+		case Units::MM:
+			mDPts = d * PTS_PER_MM;
+			break;
+		case Units::CM:
+			mDPts = d * PTS_PER_CM;
+			break;
+		case Units::PC:
+			mDPts = d * PTS_PER_PICA;
+			break;
+		}
+	}
+
+
+	Distance Distance::fromString( const QString& string )
+	{
+		QString stringCopy = string;
+		QTextStream valueStream( &stringCopy, QIODevice::ReadOnly );
+
+		double value;
+		QString unitsString;
+		valueStream >> value >> unitsString;
+
+		if ( !unitsString.isEmpty() && !isIdValid( unitsString ) )
+		{
+			qWarning() << "Error: invalid Distance::Units \"" << string << "\"";
+		}
+
+		return Distance( value, unitsString );
+	}
+
+
+	double Distance::inUnits( Units units ) const
+	{
+		double d;
+
+		switch (units)
+		{
+		case Units::PT:
+			d = pt();
+			break;
+		case Units::IN:
+			d = in();
+			break;
+		case Units::MM:
+			d = mm();
+			break;
+		case Units::CM:
+			d = cm();
+			break;
+		case Units::PC:
+			d = pc();
+			break;
+		}
+
+		return d;
+	}
+	
+
+	double Distance::inUnits( const QString& unitsId ) const
+	{
+		return inUnits( toUnits( unitsId ) );
+	}
+
+
+	QString Distance::toString( Units units ) const
+	{
+		return QString::number( inUnits(units) ) + toId(units);
+	}
+
+
+	QString Distance::toString( const QString& unitsId ) const
+	{
+		return QString::number( inUnits(unitsId) ) + unitsId;
+	}
+}

libglabels/Distance.h

@@ -0,0 +1,107 @@
+/*  Distance.h
+ *
+ *  Copyright (C) 2016  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef libglabels_Distance_h
+#define libglabels_Distance_h
+
+
+#include <QCoreApplication>
+#include <QString>
+#include "Constants.h"
+
+
+namespace libglabels
+{
+
+
+	class Distance
+	{
+		Q_DECLARE_TR_FUNCTIONS(Distance)
+
+	public:
+		enum class Units { PT, IN, MM, CM, PC };
+
+		static QString toId( Units units );
+		static QString toTrName( Units units );
+		static bool isIdValid( const QString& unitsId );
+		static Units toUnits( const QString& unitsId );
+		
+
+		Distance();
+		Distance( double d, Units units = Units::PT );
+		Distance( double d, const QString& unitsId );
+
+		static Distance pt( double dPts );
+		static Distance in( double dInches );
+		static Distance mm( double dMm );
+		static Distance cm( double dCm );
+		static Distance pc( double dPicas );
+		static Distance fromString( const QString& string );
+
+
+		double pt() const;
+		double in() const;
+		double mm() const;
+		double cm() const;
+		double pc() const;
+		double inUnits( Units units ) const;
+		double inUnits( const QString& unitsId ) const;
+
+
+		QString toString( Units units ) const;
+		QString toString( const QString& unitsId ) const;
+
+
+		Distance& operator+=( const Distance& d );
+		Distance& operator-=( const Distance& d );
+		Distance operator-();
+
+		friend inline Distance operator+( const Distance& d1, const Distance& d2 );
+		friend inline Distance operator-( const Distance& d1, const Distance& d2 );
+		friend inline Distance operator*( double x, const Distance& d );
+		friend inline Distance operator*( const Distance& d, double x );
+		friend inline double   operator/( const Distance& d1, const Distance& d2 );
+		friend inline Distance operator/( const Distance& d, double x );
+		
+		friend inline bool operator<( const Distance& d1, const Distance& d2 );
+		friend inline bool operator<=( const Distance& d1, const Distance& d2 );
+		friend inline bool operator>( const Distance& d1, const Distance& d2 );
+		friend inline bool operator>=( const Distance& d1, const Distance& d2 );
+		friend inline bool operator==( const Distance& d1, const Distance& d2 );
+		friend inline bool operator!=( const Distance& d1, const Distance& d2 );
+		
+		friend inline Distance fabs( const Distance& d );
+		friend inline Distance min( const Distance& d1, const Distance& d2 );
+		friend inline Distance max( const Distance& d1, const Distance& d2 );
+		friend inline Distance fmod( const Distance& d1, const Distance& d2 );
+
+		
+	private:
+		double mDPts;
+
+	};
+
+}
+
+
+#include "Distance.inl"
+
+
+#endif // libglabels_Distance_h

libglabels/Distance.inl

@@ -0,0 +1,218 @@
+/*  Distance.inl
+ *
+ *  Copyright (C) 2016  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <cmath>
+
+
+namespace libglabels
+{
+
+	inline Distance::Distance() : mDPts(0)
+	{
+	}
+
+	
+	inline Distance Distance::pt( double dPts )
+	{
+		Distance d;
+		d.mDPts = dPts;
+		return d;
+	}
+
+
+	inline Distance Distance::in( double dInches )
+	{
+		Distance d;
+		d.mDPts = dInches * PTS_PER_INCH;
+		return d;
+	}
+
+
+	inline Distance Distance::mm( double dMm )
+	{
+		Distance d;
+		d.mDPts = dMm * PTS_PER_MM;
+		return d;
+	}
+
+
+	inline Distance Distance::cm( double dCm )
+	{
+		Distance d;
+		d.mDPts = dCm * PTS_PER_CM;
+		return d;
+	}
+
+
+	inline Distance Distance::pc( double dPicas )
+	{
+		Distance d;
+		d.mDPts = dPicas * PTS_PER_PICA;
+		return d;
+	}
+
+
+	inline double Distance::pt() const
+	{
+		return mDPts;
+	}
+	
+
+	inline double Distance::in() const
+	{
+		return mDPts / PTS_PER_INCH;
+	}
+	
+
+	inline double Distance::mm() const
+	{
+		return mDPts / PTS_PER_MM;
+	}
+	
+
+	inline double Distance::cm() const
+	{
+		return mDPts / PTS_PER_CM;
+	}
+	
+
+	inline double Distance::pc() const
+	{
+		return mDPts / PTS_PER_PICA;
+	}
+
+
+	inline Distance& Distance::operator+=( const Distance& d )
+	{
+		mDPts += d.mDPts;
+		return *this;
+	}
+
+	
+	inline Distance& Distance::operator-=( const Distance& d )
+	{
+		mDPts -= d.mDPts;
+		return *this;
+	}
+
+	
+	inline Distance Distance::operator-()
+	{
+		return Distance::pt( -mDPts );
+	}
+
+	
+	inline Distance operator+( const Distance& d1, const Distance& d2 )
+	{
+		return Distance::pt( d1.mDPts + d2.mDPts );
+	}
+	
+
+	inline Distance operator-( const Distance& d1, const Distance& d2 )
+	{
+		return Distance::pt( d1.mDPts - d2.mDPts );
+	}
+	
+
+	inline Distance operator*( double x, const Distance& d )
+	{
+		return Distance::pt( x * d.mDPts );
+	}
+
+
+	inline Distance operator*( const Distance& d, double x )
+	{
+		return Distance::pt( d.mDPts * x );
+	}
+
+	
+	inline double operator/( const Distance& d1, const Distance& d2 )
+	{
+		return d1.mDPts / d2.mDPts;
+	}
+
+
+	inline Distance operator/( const Distance& d, double x )
+	{
+		return Distance::pt( d.mDPts / x );
+	}
+
+
+	inline bool operator<( const Distance& d1, const Distance& d2 )
+	{
+		return d1.mDPts < d2.mDPts;
+	}
+	
+
+	inline bool operator<=( const Distance& d1, const Distance& d2 )
+	{
+		return d1.mDPts <= d2.mDPts;
+	}
+	
+
+	inline bool operator>( const Distance& d1, const Distance& d2 )
+	{
+		return d1.mDPts > d2.mDPts;
+	}
+	
+
+	inline bool operator>=( const Distance& d1, const Distance& d2 )
+	{
+		return d1.mDPts >= d2.mDPts;
+	}
+	
+
+	inline bool operator==( const Distance& d1, const Distance& d2 )
+	{
+		return d1.mDPts == d2.mDPts;
+	}
+
+
+	inline bool operator!=( const Distance& d1, const Distance& d2 )
+	{
+		return d1.mDPts != d2.mDPts;
+	}
+
+
+	inline Distance fabs( const Distance& d )
+	{
+		return Distance::pt( std::fabs( d.mDPts ) );
+	}
+
+	
+	inline Distance min( const Distance& d1, const Distance& d2 )
+	{
+		return (d1.mDPts < d2.mDPts) ? d1 : d2;
+	}
+
+	
+	inline Distance max( const Distance& d1, const Distance& d2 )
+	{
+		return (d1.mDPts > d2.mDPts) ? d1 : d2;
+	}
+
+
+	inline Distance fmod( const Distance& d1, const Distance& d2 )
+	{
+		return Distance::pt( std::fmod( d1.mDPts, d2.mDPts ) );
+	}
+
+}

libglabels/Frame.h

@@ -27,7 +27,7 @@
 #include <QPainterPath>
 #include <QVector>
 
-#include "Units.h"
+#include "Distance.h"
 #include "Point.h"
 #include "Layout.h"
 
@@ -59,14 +59,14 @@ namespace libglabels
 		void addLayout( Layout* layout );
 		void addMarkup( Markup* markup );
 
-		virtual double w() const = 0;
+		virtual Distance w() const = 0;
-		virtual double h() const = 0;
+		virtual Distance h() const = 0;
 
-		virtual const QString sizeDescription( const Units& units ) const = 0;
+		virtual const QString sizeDescription( Distance::Units units ) const = 0;
 		virtual bool isSimilarTo( Frame* other ) const = 0;
 
 		virtual const QPainterPath& path() const = 0;
-		virtual QPainterPath marginPath( double size ) const = 0;
+		virtual QPainterPath marginPath( const Distance& size ) const = 0;
 
 
 	private:

libglabels/FrameCd.cpp

@@ -1,6 +1,6 @@
 /*  FrameCd.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -30,20 +30,25 @@
 namespace libglabels
 {
 
-	FrameCd::FrameCd( double r1, double r2, double w, double h, double waste, QString id )
+	FrameCd::FrameCd( const Distance& r1,
+			  const Distance& r2,
+			  const Distance& w,
+			  const Distance& h,
+			  const Distance& waste,
+			  const QString&  id )
 		: mR1(r1), mR2(r2), mW(w), mH(h), mWaste(waste), Frame(id)
 	{
-		double wReal = (mW == 0) ? 2*mR1 : mW;
+		Distance wReal = (mW == 0) ? 2*mR1 : mW;
-		double hReal = (mH == 0) ? 2*mR1 : mH;
+		Distance hReal = (mH == 0) ? 2*mR1 : mH;
 
 		/*
 		 * Construct outer subpath (may be clipped if it's a business card CD)
 		 */
 		QPainterPath outerPath;
-		outerPath.addEllipse( wReal/2 - r1, hReal/2 - r1, 2*r1, 2*r1 );
+		outerPath.addEllipse( (wReal/2 - r1).pt(), (hReal/2 - r1).pt(), 2*r1.pt(), 2*r1.pt() );
 
 		QPainterPath clipPath;
-		clipPath.addRect( 0, 0, wReal, hReal );
+		clipPath.addRect( 0, 0, wReal.pt(), hReal.pt() );
 
 		mPath.addPath( outerPath & clipPath );
 		mPath.closeSubpath();
@@ -51,7 +56,7 @@ namespace libglabels
 		/*
 		 * Add inner subpath
 		 */
-		mPath.addEllipse( wReal/2 - r2, hReal/2 - r2, 2*r2, 2*r2 );
+		mPath.addEllipse( (wReal/2 - r2).pt(), (hReal/2 - r2).pt(), 2*r2.pt(), 2*r2.pt() );
 	}
 
 
@@ -68,34 +73,34 @@ namespace libglabels
 	}
 	
 
-	double FrameCd::w() const
+	Distance FrameCd::w() const
 	{
 		return (mW == 0) ? 2*mR1 : mW;
 	}
 
 	
-	double FrameCd::h() const
+	Distance FrameCd::h() const
 	{
 		return (mH == 0) ? 2*mR1 : mH;
 	}
 
 
-	const QString FrameCd::sizeDescription( const Units& units ) const
+	const QString FrameCd::sizeDescription( Distance::Units units ) const
 	{
-		if ( units.id() == "in" )
+		if ( units == Distance::Units::IN )
 		{
-			QString dStr = StrUtil::formatFraction( 2 * mR1 * units.unitsPerPoint() );
+			QString dStr = StrUtil::formatFraction( 2 * mR1.in() );
 
 			return QString().sprintf( "%s %s %s",
 						  qPrintable(dStr),
-						  qPrintable(units.name()),
+						  qPrintable(Distance::toTrName(units)),
 						  qPrintable(tr("diameter")) );
 		}
 		else
 		{
 			return QString().sprintf( "%.5g %s %s",
-						  2 * mR1 * units.unitsPerPoint(),
+						  2 * mR1.inUnits(units),
-						  qPrintable(units.name()),
+						  qPrintable(Distance::toTrName(units)),
 						  qPrintable(tr("diameter")) );
 		}
 	}
@@ -123,13 +128,13 @@ namespace libglabels
 	}
 	
 
-	QPainterPath FrameCd::marginPath( double size ) const
+	QPainterPath FrameCd::marginPath( const Distance& size ) const
 	{
-		double wReal = (mW == 0) ? 2*mR1 : mW;
+		Distance wReal = (mW == 0) ? 2*mR1 : mW;
-		double hReal = (mH == 0) ? 2*mR1 : mH;
+		Distance hReal = (mH == 0) ? 2*mR1 : mH;
 
-		double r1 = mR1 - size;
+		Distance r1 = mR1 - size;
-		double r2 = mR2 + size;
+		Distance r2 = mR2 + size;
 
 		QPainterPath path;
 
@@ -137,10 +142,10 @@ namespace libglabels
 		 * Construct outer subpath (may be clipped if it's a business card CD)
 		 */
 		QPainterPath outerPath;
-		outerPath.addEllipse( wReal/2 - r1, hReal/2 - r1, 2*r1, 2*r1 );
+		outerPath.addEllipse( (wReal/2 - r1).pt(), (hReal/2 - r1).pt(), 2*r1.pt(), 2*r1.pt() );
 
 		QPainterPath clipPath;
-		clipPath.addRect( size, size, wReal-2*size, hReal-2*size );
+		clipPath.addRect( size.pt(), size.pt(), (wReal-2*size).pt(), (hReal-2*size).pt() );
 
 		path.addPath( outerPath & clipPath );
 		path.closeSubpath();
@@ -148,7 +153,7 @@ namespace libglabels
 		/*
 		 * Add inner subpath
 		 */
-		path.addEllipse( wReal/2 - r2, hReal/2 - r2, 2*r2, 2*r2 );
+		path.addEllipse( (wReal/2 - r2).pt(), (hReal/2 - r2).pt(), 2*r2.pt(), 2*r2.pt() );
 
 		return path;
 	}

libglabels/FrameCd.h

@@ -1,6 +1,6 @@
 /*  FrameCd.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -30,32 +30,37 @@ namespace libglabels
 	class FrameCd : public Frame
 	{
 	public:
-		FrameCd( double r1, double r2, double w, double h, double waste, QString id = "0" );
+		FrameCd( const Distance& r1,
+		         const Distance& r2,
+		         const Distance& w,
+		         const Distance& h,
+		         const Distance& waste,
+		         const QString&  id = "0" );
 
 		FrameCd( const FrameCd &other );
 
 		Frame *dup() const;
 
-		double r1() const;
+		Distance r1() const;
-		double r2() const;
+		Distance r2() const;
-		double waste() const;
+		Distance waste() const;
 
-		double w() const;
+		Distance w() const;
-		double h() const;
+		Distance h() const;
 
-		const QString sizeDescription( const Units& units ) const;
+		const QString sizeDescription( Distance::Units units ) const;
 		bool isSimilarTo( Frame* other ) const;
 
 		const QPainterPath& path() const;
-		QPainterPath marginPath( double size ) const;
+		QPainterPath marginPath( const Distance& size ) const;
 
 
 	private:
-		double mR1;
+		Distance mR1;
-		double mR2;
+		Distance mR2;
-		double mW;
+		Distance mW;
-		double mH;
+		Distance mH;
-		double mWaste;
+		Distance mWaste;
 
 		QPainterPath mPath;
 

libglabels/FrameCd.inl

@@ -1,6 +1,6 @@
 /*  FrameCd.inl
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -22,19 +22,19 @@
 namespace libglabels
 {
 
-	inline double FrameCd::r1() const
+	inline Distance FrameCd::r1() const
 	{
 		return mR1;
 	}
 
 	
-	inline double FrameCd::r2() const
+	inline Distance FrameCd::r2() const
 	{
 		return mR2;
 	}
 
 	
-	inline double FrameCd::waste() const
+	inline Distance FrameCd::waste() const
 	{
 		return mWaste;
 	}

libglabels/FrameEllipse.cpp

@@ -1,6 +1,6 @@
 /*  FrameEllipse.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -29,10 +29,13 @@
 namespace libglabels
 {
 
-	FrameEllipse::FrameEllipse( double w, double h, double waste, QString id )
+	FrameEllipse::FrameEllipse( const Distance& w,
+				    const Distance& h,
+				    const Distance& waste,
+				    const QString&  id )
 		: mW(w), mH(h), mWaste(waste), Frame(id)
 	{
-		mPath.addEllipse( 0, 0, mW, mH );
+		mPath.addEllipse( 0, 0, mW.pt(), mH.pt() );
 	}
 
 	FrameEllipse::FrameEllipse( const FrameEllipse& other )
@@ -47,36 +50,36 @@ namespace libglabels
 	}
 
 
-	double FrameEllipse::w() const
+	Distance FrameEllipse::w() const
 	{
 		return mW;
 	}
 
 	
-	double FrameEllipse::h() const
+	Distance FrameEllipse::h() const
 	{
 		return mH;
 	}
 	
 
-	const QString FrameEllipse::sizeDescription( const Units& units ) const
+	const QString FrameEllipse::sizeDescription( Distance::Units units ) const
 	{
-		if ( units.id() == "in" )
+		if ( units == Distance::Units::IN )
 		{
-			QString wStr = StrUtil::formatFraction( mW * units.unitsPerPoint() );
+			QString wStr = StrUtil::formatFraction( mW.in() );
-			QString hStr = StrUtil::formatFraction( mH * units.unitsPerPoint() );
+			QString hStr = StrUtil::formatFraction( mH.in() );
 
 			return QString().sprintf( "%s x %s %s",
 						  qPrintable(wStr),
 						  qPrintable(hStr),
-						  qPrintable(units.name()) );
+						  qPrintable(Distance::toTrName(units)) );
 		}
 		else
 		{
 			return QString().sprintf( "%.5g x %.5g %s",
-						  mW * units.unitsPerPoint(),
+						  mW.inUnits(units),
-						  mH * units.unitsPerPoint(),
+						  mH.inUnits(units),
-						  qPrintable(units.name()) );
+						  qPrintable(Distance::toTrName(units)) );
 		}
 	}
 
@@ -101,13 +104,13 @@ namespace libglabels
 	}
 
 	
-	QPainterPath FrameEllipse::marginPath( double size ) const
+	QPainterPath FrameEllipse::marginPath( const Distance& size ) const
 	{
-		double w = mW - 2*size;
+		Distance w = mW - 2*size;
-		double h = mH - 2*size;
+		Distance h = mH - 2*size;
 
 		QPainterPath path;
-		path.addEllipse( size, size, w, h );
+		path.addEllipse( size.pt(), size.pt(), w.pt(), h.pt() );
 
 		return path;
 	}

libglabels/FrameEllipse.h

@@ -1,6 +1,6 @@
 /*  FrameEllipse.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -31,28 +31,31 @@ namespace libglabels
 	{
 		
 	public:
-		FrameEllipse( double w, double h, double waste, QString id = "0" );
+		FrameEllipse( const Distance& w,
+		              const Distance& h,
+		              const Distance& waste,
+		              const QString&  id = "0" );
 
 		FrameEllipse( const FrameEllipse& other );
 
 		Frame* dup() const;
 
-		double waste() const;
+		Distance waste() const;
 
-		double w() const;
+		Distance w() const;
-		double h() const;
+		Distance h() const;
 
-		const QString sizeDescription( const Units& units ) const;
+		const QString sizeDescription( Distance::Units units ) const;
 		bool isSimilarTo( Frame* other ) const;
 
 		const QPainterPath& path() const;
-		QPainterPath marginPath( double size ) const;
+		QPainterPath marginPath( const Distance& size ) const;
 
 
 	private:
-		double mW;
+		Distance mW;
-		double mH;
+		Distance mH;
-		double mWaste;
+		Distance mWaste;
 
 		QPainterPath mPath;
 

libglabels/FrameEllipse.inl

@@ -1,6 +1,6 @@
 /*  FrameEllipse.inl
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -22,7 +22,7 @@
 namespace libglabels
 {
 
-	inline double FrameEllipse::waste() const
+	inline Distance FrameEllipse::waste() const
 	{
 		return mWaste;
 	}

libglabels/FrameRect.cpp

@@ -1,6 +1,6 @@
 /*  FrameRect.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -29,10 +29,15 @@
 namespace libglabels
 {
 
-	FrameRect::FrameRect( double w, double h, double r, double xWaste, double yWaste, QString id )
+	FrameRect::FrameRect( const Distance& w,
+			      const Distance& h,
+			      const Distance& r,
+			      const Distance& xWaste,
+			      const Distance& yWaste,
+			      const QString&  id )
 		: mW(w), mH(h), mR(r), mXWaste(xWaste), mYWaste(yWaste), Frame(id)
 	{
-		mPath.addRoundedRect( 0, 0, mW, mH, mR, mR );
+		mPath.addRoundedRect( 0, 0, mW.pt(), mH.pt(), mR.pt(), mR.pt() );
 	}
 
 	
@@ -49,36 +54,36 @@ namespace libglabels
 	}
 
 
-	double FrameRect::w() const
+	Distance FrameRect::w() const
 	{
 		return mW;
 	}
 
 	
-	double FrameRect::h() const
+	Distance FrameRect::h() const
 	{
 		return mH;
 	}
 
 
-	const QString FrameRect::sizeDescription( const Units& units ) const
+	const QString FrameRect::sizeDescription( Distance::Units units ) const
 	{
-		if ( units.id() == "in" )
+		if ( units == Distance::Units::IN )
 		{
-			QString wStr = StrUtil::formatFraction( mW * units.unitsPerPoint() );
+			QString wStr = StrUtil::formatFraction( mW.in() );
-			QString hStr = StrUtil::formatFraction( mH * units.unitsPerPoint() );
+			QString hStr = StrUtil::formatFraction( mH.in() );
 
 			return QString().sprintf( "%s x %s %s",
 						  qPrintable(wStr),
 						  qPrintable(hStr),
-						  qPrintable(units.name()) );
+						  qPrintable(Distance::toTrName(units)) );
 		}
 		else
 		{
 			return QString().sprintf( "%.5g x %.5g %s",
-						  mW * units.unitsPerPoint(),
+						  mW.inUnits(units),
-						  mH * units.unitsPerPoint(),
+						  mH.inUnits(units),
-						  qPrintable(units.name()) );
+						  qPrintable(Distance::toTrName(units)) );
 		}
 	}
 
@@ -103,14 +108,14 @@ namespace libglabels
 	}
 
 
-	QPainterPath FrameRect::marginPath( double size ) const
+	QPainterPath FrameRect::marginPath( const Distance& size ) const
 	{
-		double w = mW - 2*size;
+		Distance w = mW - 2*size;
-		double h = mH - 2*size;
+		Distance h = mH - 2*size;
-		double r = std::max( mR - size, 0.0 );
+		Distance r = std::max( mR - size, Distance(0.0) );
 
 		QPainterPath path;
-		path.addRoundedRect( size, size, w, h, r, r );
+		path.addRoundedRect( size.pt(), size.pt(), w.pt(), h.pt(), r.pt(), r.pt() );
 
 		return path;
 	}

libglabels/FrameRect.h

@@ -30,38 +30,38 @@ namespace libglabels
 	class FrameRect : public Frame
 	{
 	public:
-		FrameRect( double  w,
+		FrameRect( const Distance& w,
-			   double  h,
+			   const Distance& h,
-			   double  r,
+		           const Distance& r,
-			   double  xWaste,
+			   const Distance& xWaste,
-			   double  yWaste,
+		           const Distance& yWaste,
-		           QString id = "0" );
+		           const QString&  id = "0" );
 
 		FrameRect( const FrameRect& other );
 
 		Frame* dup() const;
 
-		double r() const;
+		Distance r() const;
-		double xWaste() const;
+		Distance xWaste() const;
-		double yWaste() const;
+		Distance yWaste() const;
 
-		double w() const;
+		Distance w() const;
-		double h() const;
+		Distance h() const;
 
-		const QString sizeDescription( const Units& units ) const;
+		const QString sizeDescription( Distance::Units units ) const;
 
 		bool isSimilarTo( Frame* other ) const;
 
 		const QPainterPath& path() const;
-		QPainterPath marginPath( double size ) const;
+		QPainterPath marginPath( const Distance& size ) const;
 
 
 	private:
-		double mW;
+		Distance mW;
-		double mH;
+		Distance mH;
-		double mR;
+		Distance mR;
-		double mXWaste;
+		Distance mXWaste;
-		double mYWaste;
+		Distance mYWaste;
 
 		QPainterPath mPath;
 

libglabels/FrameRect.inl

@@ -1,6 +1,6 @@
 /*  FrameRect.inl
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -22,19 +22,19 @@
 namespace libglabels
 {
 
-	inline double FrameRect::r() const
+	inline Distance FrameRect::r() const
 	{
 		return mR;
 	}
 
 		
-	inline double FrameRect::xWaste() const
+	inline Distance FrameRect::xWaste() const
 	{
 		return mXWaste;
 	}
 
 		
-	inline double FrameRect::yWaste() const
+	inline Distance FrameRect::yWaste() const
 	{
 		return mYWaste;
 	}

libglabels/FrameRound.cpp

@@ -1,6 +1,6 @@
 /*  FrameRound.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -29,10 +29,12 @@
 namespace libglabels
 {
 
-	FrameRound::FrameRound( double r, double waste, QString id )
+	FrameRound::FrameRound( const Distance& r,
+				const Distance& waste,
+				const QString&  id )
 		: mR(r), mWaste(waste), Frame(id)
 	{
-		mPath.addEllipse( 0, 0, 2*mR, 2*mR );
+		mPath.addEllipse( 0, 0, 2*mR.pt(), 2*mR.pt() );
 	}
 	
 
@@ -48,34 +50,34 @@ namespace libglabels
 	}
 
 	
-	double FrameRound::w() const
+	Distance FrameRound::w() const
 	{
 		return 2*mR;
 	}
 
 	
-	double FrameRound::h() const
+	Distance FrameRound::h() const
 	{
 		return 2*mR;
 	}
 
 	
-	const QString FrameRound::sizeDescription( const Units& units ) const
+	const QString FrameRound::sizeDescription( Distance::Units units ) const
 	{
-		if ( units.id() == "in" )
+		if ( units == Distance::Units::IN )
 		{
-			QString dStr = StrUtil::formatFraction( 2 * mR * units.unitsPerPoint() );
+			QString dStr = StrUtil::formatFraction( 2 * mR.in() );
 
 			return QString().sprintf( "%s %s %s",
 						  qPrintable(dStr),
-						  qPrintable(units.name()),
+						  qPrintable(Distance::toTrName(units)),
 						  qPrintable(tr("diameter")) );
 		}
 		else
 		{
 			return QString().sprintf( "%.5g %s %s",
-						  2 * mR * units.unitsPerPoint(),
+						  2 * mR.inUnits(units),
-						  qPrintable(units.name()),
+						  qPrintable(Distance::toTrName(units)),
 						  qPrintable(tr("diameter")) );
 		}
 	}
@@ -100,12 +102,12 @@ namespace libglabels
 	}
 
 
-	QPainterPath FrameRound::marginPath( double size ) const
+	QPainterPath FrameRound::marginPath( const Distance& size ) const
 	{
-		double r = mR - size;
+		Distance r = mR - size;
 
 		QPainterPath path;
-		path.addEllipse( size, size, 2*r, 2*r );
+		path.addEllipse( size.pt(), size.pt(), 2*r.pt(), 2*r.pt() );
 
 		return path;
 	}

libglabels/FrameRound.h

@@ -1,6 +1,6 @@
 /*  FrameRound.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -31,28 +31,30 @@ namespace libglabels
 	{
 
 	public:
-		FrameRound( double r, double waste, QString id = "0" );
+		FrameRound( const Distance& r,
+		            const Distance& waste,
+		            const QString&  id = "0" );
 
 		FrameRound( const FrameRound &other );
 
 		Frame *dup() const;
 
-		double r() const;
+		Distance r() const;
-		double waste() const;
+		Distance waste() const;
 
-		double w() const;
+		Distance w() const;
-		double h() const;
+		Distance h() const;
 
-		const QString sizeDescription( const Units& units ) const;
+		const QString sizeDescription( Distance::Units units ) const;
 		bool isSimilarTo( Frame* other ) const;
 
 		const QPainterPath& path() const;
-		QPainterPath marginPath( double size ) const;
+		QPainterPath marginPath( const Distance& size ) const;
 
 
 	private:
-		double mR;
+		Distance mR;
-		double mWaste;
+		Distance mWaste;
 
 		QPainterPath mPath;
 

libglabels/FrameRound.inl

@@ -1,6 +1,6 @@
 /*  FrameRound.inl
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -22,13 +22,13 @@
 namespace libglabels
 {
 
-	inline double FrameRound::r() const
+	inline Distance FrameRound::r() const
 	{
 		return mR;
 	}
 
 
-	inline double FrameRound::waste() const
+	inline Distance FrameRound::waste() const
 	{
 		return mWaste;
 	}

libglabels/Layout.cpp

@@ -1,6 +1,6 @@
 /*  Layout.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -28,7 +28,12 @@
 namespace libglabels
 {
 
-	Layout::Layout( int nx, int ny, double x0, double y0, double dx, double dy )
+	Layout::Layout( int             nx,
+		        int             ny,
+		        const Distance& x0,
+		        const Distance& y0,
+		        const Distance& dx,
+		        const Distance& dy )
 		: mNx(nx), mNy(ny), mX0(x0), mY0(y0), mDx(dx), mDy(dy)
 	{
 	}

libglabels/Layout.h

@@ -1,6 +1,6 @@
 /*  Layout.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -21,6 +21,8 @@
 #ifndef libglabels_Layout_h
 #define libglabels_Layout_h
 
+#include "Distance.h"
+
 
 namespace libglabels
 {
@@ -29,18 +31,23 @@ namespace libglabels
 	{
 		
 	public:
-		Layout( int nx, int ny, double x0, double y0, double dx, double dy );
+		Layout( int             nx,
+		        int             ny,
+		        const Distance& x0,
+		        const Distance& y0,
+		        const Distance& dx,
+		        const Distance& dy );
 
 		Layout( const Layout &other );
 
 		int nx() const;
 		int ny() const;
 
-		double x0() const;
+		Distance x0() const;
-		double y0() const;
+		Distance y0() const;
 
-		double dx() const;
+		Distance dx() const;
-		double dy() const;
+		Distance dy() const;
 
 		bool isSimilarTo( const Layout *other );
 
@@ -50,10 +57,10 @@ namespace libglabels
 	private:
 		int      mNx;
 		int      mNy;
-		double  mX0;
+		Distance mX0;
-		double  mY0;
+		Distance mY0;
-		double  mDx;
+		Distance mDx;
-		double  mDy;
+		Distance mDy;
 		
 	};
 

libglabels/Layout.inl

@@ -1,6 +1,6 @@
 /*  Layout.inl
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -34,25 +34,25 @@ namespace libglabels
 	}
 		
 
-	inline double Layout::x0() const
+	inline Distance Layout::x0() const
 	{
 		return mX0;
 	}
 
 		
-	inline double Layout::y0() const
+	inline Distance Layout::y0() const
 	{
 		return mY0;
 	}
 		
 
-	inline double Layout::dx() const
+	inline Distance Layout::dx() const
 	{
 		return mDx;
 	}
 
 		
-	inline double Layout::dy() const
+	inline Distance Layout::dy() const
 	{
 		return mDy;
 	}

libglabels/Markup.cpp

@@ -1,6 +1,6 @@
 /*  Markup.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -30,7 +30,8 @@ namespace libglabels
 	}
 
 	
-	MarkupMargin::MarkupMargin( const Frame* frame, double size )
+	MarkupMargin::MarkupMargin( const Frame*    frame,
+				    const Distance& size )
 		: mFrame(frame), mSize(size)
 	{
 		mPath = frame->marginPath( size );
@@ -43,11 +44,14 @@ namespace libglabels
 	}
 
 
-	MarkupLine::MarkupLine( double x1, double y1, double x2, double y2 )
+	MarkupLine::MarkupLine( const Distance& x1,
+				const Distance& y1,
+				const Distance& x2,
+				const Distance& y2 )
 		: mX1(x1), mY1(y1), mX2(x2), mY2(y2)
 	{
-		mPath.moveTo( x1, y1 );
+		mPath.moveTo( x1.pt(), y1.pt() );
-		mPath.lineTo( x2, y2 );
+		mPath.lineTo( x2.pt(), y2.pt() );
 	}
 
 
@@ -57,10 +61,14 @@ namespace libglabels
 	}
 
 	
-	MarkupRect::MarkupRect( double x1, double y1, double w, double h, double r )
+	MarkupRect::MarkupRect( const Distance& x1,
+				const Distance& y1,
+				const Distance& w,
+				const Distance& h,
+				const Distance& r )
 		: mX1(x1), mY1(y1), mW(w), mH(h), mR(r)
 	{
-		mPath.addRoundedRect( x1, y1, w, h, r, r );
+		mPath.addRoundedRect( x1.pt(), y1.pt(), w.pt(), h.pt(), r.pt(), r.pt() );
 	}
 
 
@@ -70,10 +78,13 @@ namespace libglabels
 	}
 	
 
-	MarkupEllipse::MarkupEllipse( double x1, double y1, double w, double h )
+	MarkupEllipse::MarkupEllipse( const Distance& x1,
+				      const Distance& y1,
+				      const Distance& w,
+				      const Distance& h )
 		: mX1(x1), mY1(y1), mW(w), mH(h)
 	{
-		mPath.addEllipse( x1, y1, w, h );
+		mPath.addEllipse( x1.pt(), y1.pt(), w.pt(), h.pt() );
 	}
 
 
@@ -83,10 +94,12 @@ namespace libglabels
 	}
 
 	
-	MarkupCircle::MarkupCircle( double x0, double y0, double r )
+	MarkupCircle::MarkupCircle( const Distance& x0,
+				    const Distance& y0,
+				    const Distance& r )
 		: mX0(x0), mY0(y0), mR(r)
 	{
-		mPath.addEllipse( x0-r, y0-r, 2*r, 2*r );
+		mPath.addEllipse( (x0-r).pt(), (y0-r).pt(), 2*r.pt(), 2*r.pt() );
 	}
 
 	Markup* MarkupCircle::dup() const

libglabels/Markup.h

@@ -1,6 +1,6 @@
 /*  Markup.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -44,95 +44,108 @@ namespace libglabels
 	class MarkupMargin : public Markup
 	{
 	public:
-		MarkupMargin( const Frame* frame, double size );
+		MarkupMargin( const Frame*    frame,
+		              const Distance& size );
 
-		double size() const;
+		Distance size() const;
 
 		Markup* dup() const;
 
 	private:
 		const Frame* mFrame;
-		double  mSize;
+		Distance  mSize;
 	};
 
 
 	class MarkupLine : public Markup
 	{
 	public:
-		MarkupLine( double x1, double y1, double x2, double y2 );
+		MarkupLine( const Distance& x1,
+		            const Distance& y1,
+		            const Distance& x2,
+		            const Distance& y2 );
 
-		double x1() const;
+		Distance x1() const;
-		double y1() const;
+		Distance y1() const;
-		double x2() const;
+		Distance x2() const;
-		double y2() const;
+		Distance y2() const;
 
 		Markup* dup() const;
 
 	private:
-		double  mX1;
+		Distance  mX1;
-		double  mY1;
+		Distance  mY1;
-		double  mX2;
+		Distance  mX2;
-		double  mY2;
+		Distance  mY2;
 	};
 
 
 	class MarkupRect : public Markup
 	{
 	public:
-		MarkupRect( double x1, double y1, double w, double h, double r );
+		MarkupRect( const Distance& x1,
+		            const Distance& y1,
+		            const Distance& w,
+		            const Distance& h,
+		            const Distance& r );
 
-		double x1() const;
+		Distance x1() const;
-		double y1() const;
+		Distance y1() const;
-		double w() const;
+		Distance w() const;
-		double h() const;
+		Distance h() const;
-		double r() const;
+		Distance r() const;
 
 		Markup* dup() const;
 
 	private:
-		double  mX1;
+		Distance  mX1;
-		double  mY1;
+		Distance  mY1;
-		double  mW;
+		Distance  mW;
-		double  mH;
+		Distance  mH;
-		double  mR;
+		Distance  mR;
 	};
 
 
 	class MarkupEllipse : public Markup
 	{
 	public:
-		MarkupEllipse( double x1, double y1, double w, double h );
+		MarkupEllipse( const Distance& x1,
+		               const Distance& y1,
+		               const Distance& w,
+		               const Distance& h );
 
-		double x1() const;
+		Distance x1() const;
-		double y1() const;
+		Distance y1() const;
-		double w() const;
+		Distance w() const;
-		double h() const;
+		Distance h() const;
 
 		Markup* dup() const;
 
 	private:
-		double  mX1;
+		Distance  mX1;
-		double  mY1;
+		Distance  mY1;
-		double  mW;
+		Distance  mW;
-		double  mH;
+		Distance  mH;
 	};
 
 
 	class MarkupCircle : public Markup
 	{
 	public:
-		MarkupCircle( double x0, double y0, double r );
+		MarkupCircle( const Distance& x0,
+		              const Distance& y0,
+		              const Distance& r );
 
-		double x0() const;
+		Distance x0() const;
-		double y0() const;
+		Distance y0() const;
-		double r() const;
+		Distance r() const;
 
 		Markup* dup() const;
 
 	private:
-		double  mX0;
+		Distance  mX0;
-		double  mY0;
+		Distance  mY0;
-		double  mR;
+		Distance  mR;
 	};
 	
 

libglabels/Markup.inl

@@ -1,6 +1,6 @@
 /*  Markup.inl
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -22,26 +22,26 @@
 namespace libglabels
 {
 
-	inline double MarkupMargin::size() const { return mSize; }
+	inline Distance MarkupMargin::size() const { return mSize; }
 
-	inline double MarkupLine::x1() const { return mX1; }
+	inline Distance MarkupLine::x1() const { return mX1; }
-	inline double MarkupLine::y1() const { return mY1; }
+	inline Distance MarkupLine::y1() const { return mY1; }
-	inline double MarkupLine::x2() const { return mX2; }
+	inline Distance MarkupLine::x2() const { return mX2; }
-	inline double MarkupLine::y2() const { return mY2; }
+	inline Distance MarkupLine::y2() const { return mY2; }
 
-	inline double MarkupRect::x1() const { return mX1; }
+	inline Distance MarkupRect::x1() const { return mX1; }
-	inline double MarkupRect::y1() const { return mY1; }
+	inline Distance MarkupRect::y1() const { return mY1; }
-	inline double MarkupRect::w() const { return mW; }
+	inline Distance MarkupRect::w() const { return mW; }
-	inline double MarkupRect::h() const { return mH; }
+	inline Distance MarkupRect::h() const { return mH; }
-	inline double MarkupRect::r() const { return mR; }
+	inline Distance MarkupRect::r() const { return mR; }
 
-	inline double MarkupEllipse::x1() const { return mX1; }
+	inline Distance MarkupEllipse::x1() const { return mX1; }
-	inline double MarkupEllipse::y1() const { return mY1; }
+	inline Distance MarkupEllipse::y1() const { return mY1; }
-	inline double MarkupEllipse::w() const { return mW; }
+	inline Distance MarkupEllipse::w() const { return mW; }
-	inline double MarkupEllipse::h() const { return mH; }
+	inline Distance MarkupEllipse::h() const { return mH; }
 
-	inline double MarkupCircle::x0() const { return mX0; }
+	inline Distance MarkupCircle::x0() const { return mX0; }
-	inline double MarkupCircle::y0() const { return mY0; }
+	inline Distance MarkupCircle::y0() const { return mY0; }
-	inline double MarkupCircle::r() const { return mR; }
+	inline Distance MarkupCircle::r() const { return mR; }
 
 }

libglabels/MiniPreviewPixmap.cpp

@@ -1,6 +1,6 @@
 /*  MiniPreviewPixmap.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -43,14 +43,14 @@ namespace libglabels
 	}
 
 
-	MiniPreviewPixmap::MiniPreviewPixmap( const Template *tmplate, int width, int height )
+	MiniPreviewPixmap::MiniPreviewPixmap( const Template* tmplate, int width, int height )
 		: QPixmap( width, height )
 	{
 		draw( tmplate, width, height );
 	}
 
 
-	void MiniPreviewPixmap::draw( const Template *tmplate, int width, int height )
+	void MiniPreviewPixmap::draw( const Template* tmplate, int width, int height )
 	{
 		fill( Qt::transparent );
 
@@ -62,26 +62,26 @@ namespace libglabels
 		double w = width - 1;
 		double h = height - 1;
 		double scale;
-		if ( (w/tmplate->pageWidth()) > (h/tmplate->pageHeight()) )
+		if ( (w/tmplate->pageWidth().pt()) > (h/tmplate->pageHeight().pt()) )
 		{
-			scale = h / tmplate->pageHeight();
+			scale = h / tmplate->pageHeight().pt();
 		}
 		else
 		{
-			scale = w / tmplate->pageWidth();
+			scale = w / tmplate->pageWidth().pt();
 		}
 		painter.scale( scale, scale );
 
-		double xOffset = ( width/scale - tmplate->pageWidth() ) / 2;
+		Distance xOffset = ( Distance::pt(width/scale) - tmplate->pageWidth() ) / 2;
-		double yOffset = ( height/scale - tmplate->pageHeight() ) / 2;
+		Distance yOffset = ( Distance::pt(height/scale) - tmplate->pageHeight() ) / 2;
-		painter.translate( xOffset, yOffset );
+		painter.translate( xOffset.pt(), yOffset.pt() );
 
 		drawPaper( painter, tmplate, scale );
 		drawLabelOutlines( painter, tmplate, scale );
 	}
 
 
-	void MiniPreviewPixmap::drawPaper( QPainter &painter, const Template *tmplate, double scale )
+	void MiniPreviewPixmap::drawPaper( QPainter& painter, const Template* tmplate, double scale )
 	{
 		QBrush brush( paperColor );
 		QPen pen( paperOutlineColor );
@@ -91,13 +91,13 @@ namespace libglabels
 
 		painter.setBrush( brush );
 		painter.setPen( pen );
-		painter.drawRect( 0, 0, tmplate->pageWidth(), tmplate->pageHeight() );
+		painter.drawRect( 0, 0, tmplate->pageWidth().pt(), tmplate->pageHeight().pt() );
 
 		painter.restore();
 	}
 
 
-	void MiniPreviewPixmap::drawLabelOutlines( QPainter &painter, const Template *tmplate, double scale )
+	void MiniPreviewPixmap::drawLabelOutlines( QPainter& painter, const Template* tmplate, double scale )
 	{
 		QBrush brush( labelColor );
 		QPen pen( labelOutlineColor );
@@ -111,20 +111,20 @@ namespace libglabels
 		Frame *frame = tmplate->frames().first();
 		QVector<Point> origins = frame->getOrigins();
 
-		foreach ( Point point, origins )
+		foreach ( Point p0, origins )
 		{
-			drawLabelOutline( painter, frame, point.x(), point.y() );
+			drawLabelOutline( painter, frame, p0 );
 		}
 
 		painter.restore();
 	}
 
 
-	void MiniPreviewPixmap::drawLabelOutline( QPainter &painter, const Frame *frame, double x0, double y0 )
+	void MiniPreviewPixmap::drawLabelOutline( QPainter& painter, const Frame* frame, const Point& p0 )
 	{
 		painter.save();
 
-		painter.translate( x0, y0 );
+		painter.translate( p0.x().pt(), p0.y().pt() );
 		painter.drawPath( frame->path() );
 		
 		painter.restore();

libglabels/MiniPreviewPixmap.h

@@ -1,6 +1,6 @@
 /*  MiniPreviewPixmap.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -24,6 +24,7 @@
 
 #include <QPixmap>
 #include <QPainter>
+#include "Point.h"
 
 
 namespace libglabels
@@ -38,14 +39,14 @@ namespace libglabels
 	public:
 		MiniPreviewPixmap();
 
-		MiniPreviewPixmap( const Template *tmplate, int width, int height );
+		MiniPreviewPixmap( const Template* tmplate, int width, int height );
 
 		
 	private:
-		void draw( const Template *tmplate, int width, int height );
+		void draw( const Template* tmplate, int width, int height );
-		void drawPaper( QPainter &painter, const Template *tmplate, double scale );
+		void drawPaper( QPainter& painter, const Template* tmplate, double scale );
-		void drawLabelOutlines( QPainter &painter, const Template *tmplate, double scale );
+		void drawLabelOutlines( QPainter& painter, const Template* tmplate, double scale );
-		void drawLabelOutline( QPainter &painter, const Frame *frame, double x0, double y0 );
+		void drawLabelOutline( QPainter& painter, const Frame *frame, const Point& point0 );
 		
 	};
 

libglabels/Paper.cpp

@@ -1,6 +1,6 @@
 /*  Paper.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -24,7 +24,11 @@
 namespace libglabels
 {
 	
-	Paper::Paper( const QString& id, const QString& name, double width, double height, const QString& pwgSize )
+	Paper::Paper( const QString&  id,
+		      const QString&  name,
+		      const Distance& width,
+		      const Distance& height,
+		      const QString&  pwgSize )
 		: mId(id), mName(name), mWidth(width), mHeight(height), mPwgSize(pwgSize)
 	{
 	}

libglabels/Paper.h

@@ -1,6 +1,6 @@
 /*  Paper.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -23,6 +23,7 @@
 
 
 #include <QString>
+#include "Distance.h"
 
 
 namespace libglabels
@@ -31,16 +32,20 @@ namespace libglabels
 	class Paper
 	{
 	public:
-		Paper( const QString& id, const QString& name, double width, double height, const QString& pwgSize );
+		Paper( const QString&  id,
+		       const QString&  name,
+		       const Distance& width,
+		       const Distance& height,
+		       const QString&  pwgSize );
 
 		inline const QString& id() const;
 		inline const QString& name() const;
 
-		/* Width (in points) */
+		/* Width */
-		inline double width() const;
+		inline Distance width() const;
 
-		/* Height (in points) */
+		/* Height */
-		inline double height() const;
+		inline Distance height() const;
 
 		/* PWG 5101.1-2002 size name */
 		inline QString pwgSize() const;
@@ -51,8 +56,8 @@ namespace libglabels
 	private:
 		QString  mId;
 		QString  mName;
-		double  mWidth;
+		Distance mWidth;
-		double  mHeight;
+		Distance mHeight;
 		QString  mPwgSize;
 	};
 

libglabels/Paper.inl

@@ -25,8 +25,8 @@ namespace libglabels
 	inline const QString& Paper::id() const { return mId; }
 	inline const QString& Paper::name() const { return mName; }
 
-	inline double Paper::width() const { return mWidth; }
+	inline Distance Paper::width() const { return mWidth; }
-	inline double Paper::height() const { return mHeight; }
+	inline Distance Paper::height() const { return mHeight; }
 
 	inline QString Paper::pwgSize() const { return mPwgSize; }
 

libglabels/Point.cpp

@@ -24,12 +24,12 @@
 namespace libglabels
 {
 
-	Point::Point() : mX(0), mY(0)
+	Point::Point() : mX(Distance(0)), mY(Distance(0))
 	{
 	}
 
 
-	Point::Point( double x, double y ) : mX(x), mY(y)
+	Point::Point( Distance x, Distance y ) : mX(x), mY(y)
 	{
 	}
 

libglabels/Point.h

@@ -1,6 +1,6 @@
 /*  Point.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -21,6 +21,8 @@
 #ifndef libglabels_Point_h
 #define libglabels_Point_h
 
+#include "Distance.h"
+
 
 namespace libglabels
 {
@@ -30,17 +32,17 @@ namespace libglabels
 	public:
 		Point();
 		
-		Point( double x, double y );
+		Point( Distance x, Distance y );
 
-		double x() const;
+		Distance x() const;
-		double y() const;
+		Distance y() const;
 
 		bool operator<( const Point &other ) const;
 
 
 	private:
-		double  mX;
+		Distance  mX;
-		double  mY;
+		Distance  mY;
 	};
 
 }

libglabels/Point.inl

@@ -1,6 +1,6 @@
 /*  Point.inl
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -22,7 +22,15 @@
 namespace libglabels
 {
 
-	inline double Point::x() const { return mX; }
+	inline Distance Point::x() const
-	inline double Point::y() const { return mY; }
+	{
+		return mX;
+	}
+
+	
+	inline Distance Point::y() const
+	{
+		return mY;
+	}
 
 }

libglabels/Template.cpp

@@ -1,6 +1,6 @@
 /*  Template.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -32,8 +32,8 @@ namespace libglabels
 			    const QString&  part,
 			    const QString&  description,
 			    const QString&  paperId,
-			    double         pageWidth = 0,
+			    const Distance& pageWidth,
-			    double         pageHeight = 0 )
+			    const Distance& pageHeight )
 		: mBrand(brand),
 		  mPart(part),
 		  mDescription(description),

libglabels/Template.h

@@ -1,6 +1,6 @@
 /*  Template.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -28,7 +28,7 @@
 
 #include <vector>
 
-#include "Units.h"
+#include "Distance.h"
 #include "Point.h"
 #include "Frame.h"
 #include "MiniPreviewPixmap.h"
@@ -50,8 +50,8 @@ namespace libglabels
 			  const QString&  part,
 			  const QString&  description,
 			  const QString&  paperId,
-			  double         pageWidth,
+		          const Distance& pageWidth,
-			  double         pageHeight );
+		          const Distance& pageHeight );
 
 		Template( const Template& other );
 
@@ -71,8 +71,8 @@ namespace libglabels
 		const QString& description() const;
 
 		const QString& paperId() const;
-		double pageWidth() const;
+		Distance pageWidth() const;
-		double pageHeight() const;
+		Distance pageHeight() const;
 		bool isSizeIso() const;
 		bool isSizeUs() const;
 		bool isSizeOther() const;
@@ -105,8 +105,8 @@ namespace libglabels
 		QString mDescription;
 
 		QString  mPaperId;
-		double  mPageWidth;
+		Distance mPageWidth;
-		double  mPageHeight;
+		Distance mPageHeight;
 		bool     mIsSizeIso;
 		bool     mIsSizeUs;
 

libglabels/Template.inl

@@ -1,6 +1,6 @@
 /*  Template.inl
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -27,8 +27,8 @@ namespace libglabels
 	inline const QString& Template::description() const { return mDescription; }
 
 	inline const QString& Template::paperId() const { return mPaperId; }
-	inline double Template::pageWidth() const { return mPageWidth; }
+	inline Distance Template::pageWidth() const { return mPageWidth; }
-	inline double Template::pageHeight() const { return mPageHeight; }
+	inline Distance Template::pageHeight() const { return mPageHeight; }
 	inline bool Template::isSizeIso() const { return mIsSizeIso; }
 	inline bool Template::isSizeUs() const { return mIsSizeUs; }
 	inline bool Template::isSizeOther() const { return !mIsSizeIso && !mIsSizeUs; }

libglabels/Units.cpp

@@ -1,123 +0,0 @@
-/*  Units.cpp
- *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
- *
- *  This file is part of gLabels-qt.
- *
- *  gLabels-qt is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  gLabels-qt is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "Units.h"
-
-#include <QDebug>
-
-
-namespace
-{
-        const double POINTS_PER_POINT =  1.0; /* internal units are points. */
-        const double POINTS_PER_INCH  = 72.0;
-        const double POINTS_PER_MM    =  2.83464566929;
-        const double POINTS_PER_CM    =  (10.0*POINTS_PER_MM);
-        const double POINTS_PER_PICA  =  (1.0/12.0);
-}
-
-
-namespace libglabels
-{
-
-	Units::Units( const QString &id, const QString &name, double pointsPerUnit )
-		: mId(id), mName(name), mPointsPerUnit(pointsPerUnit)
-	{
-		mUnitsPerPoint = 1.0 / mPointsPerUnit;
-	}
-
-
-	Units::Units()
-		: mId("pt"), mName(tr("points")), mPointsPerUnit(POINTS_PER_POINT)
-	{
-	}
-
-
-	Units Units::fromId( const QString &id )
-	{
-		if ( id == "pt" )
-		{
-			return point();
-		}
-		else if ( id == "in" )
-		{
-			return inch();
-		}
-		else if ( id == "mm" )
-		{
-			return mm();
-		}
-		else if ( id == "cm" )
-		{
-			return cm();
-		}
-		else if ( id == "pc" )
-		{
-			return pica();
-		}
-		else if ( id == "" )
-		{
-			/* Missing or empty units id defaults to points. */
-			return point();
-		}
-		else
-		{
-			qWarning() << "Unknown Units ID \"" << id << "\", defaults to \"pt\"";
-			return point();
-		}
-
-	}
-
-
-	Units Units::point()
-	{
-		return Units( "pt", tr("points"), POINTS_PER_POINT );
-	}
-
-
-	Units Units::inch()
-	{
-		return Units( "in", tr("inches"), POINTS_PER_INCH );
-	}
-
-
-	Units Units::mm()
-	{
-		return Units( "mm", tr("mm"), POINTS_PER_MM );
-	}
-
-
-	Units Units::cm()
-	{
-		return Units( "cm", tr("cm"), POINTS_PER_CM );
-	}
-
-
-	Units Units::pica()
-	{
-		return Units( "pc", tr("picas"), POINTS_PER_PICA );
-	}
-
-
-	bool Units::isIdValid( QString id )
-	{
-		return ( (id == "pt") || (id == "in") || (id == "mm") || (id == "cm") || (id == "pc") || (id == "") );
-	}
-
-}

libglabels/Units.h

@@ -1,79 +0,0 @@
-/*  Units.h
- *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
- *
- *  This file is part of gLabels-qt.
- *
- *  gLabels-qt is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  gLabels-qt is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef libglabels_Units_h
-#define libglabels_Units_h
-
-
-#include <QCoreApplication>
-#include <QString>
-
-
-namespace libglabels
-{
-
-
-	class Units
-	{
-		Q_DECLARE_TR_FUNCTIONS(Units)
-
-
-	private:
-		Units( const QString &id, const QString &name, double pointsPerUnit );
-
-	public:
-		Units();
-
-		QString id() const;
-		QString name() const;
-
-		double pointsPerUnit() const;
-		double unitsPerPoint() const;
-
-		static Units fromId( const QString &id );
-
-		static Units point();
-
-		static Units inch();
-
-		static Units mm();
-
-		static Units cm();
-
-		static Units pica();
-
-		static bool isIdValid( QString id );
-
-
-	private:
-		QString mId;
-		QString mName;
-		double  mPointsPerUnit;
-		double  mUnitsPerPoint;
-
-	};
-
-}
-
-
-#include "Units.inl"
-
-
-#endif // libglabels_Units_h

libglabels/XmlPaperParser.cpp

@@ -93,8 +93,8 @@ namespace libglabels
 		QString id      = XmlUtil::getStringAttr( node, "id", "" );
 		QString name    = XmlUtil::getI18nAttr( node, "name", "" );
 
-		double  width   = XmlUtil::getLengthAttr( node, "width", 0 );
+		Distance width   = XmlUtil::getLengthAttr( node, "width", Distance(0) );
-		double  height  = XmlUtil::getLengthAttr( node, "height", 0 );
+		Distance height  = XmlUtil::getLengthAttr( node, "height", Distance(0) );
 
 		QString pwgSize = XmlUtil::getStringAttr( node, "pwg_size", "" );
 

libglabels/XmlTemplateCreator.cpp

@@ -1,6 +1,6 @@
 /*  XmlTemplateCreator.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -203,11 +203,11 @@ namespace libglabels
 		XmlUtil::setLengthAttr( node, "radius",  frame->r1() );
 		XmlUtil::setLengthAttr( node, "hole",    frame->r2() );
 		XmlUtil::setLengthAttr( node, "waste",   frame->waste() );
-		if ( frame->w() )
+		if ( frame->w() != Distance(0) )
 		{
 			XmlUtil::setLengthAttr( node, "width",   frame->w() );
 		}
-		if ( frame->h() )
+		if ( frame->h() != Distance(0) )
 		{
 			XmlUtil::setLengthAttr( node, "height",  frame->h() );
 		}

libglabels/XmlTemplateParser.cpp

@@ -1,6 +1,6 @@
 /*  XmlTemplateParser.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -165,8 +165,8 @@ namespace libglabels
 			}
 			else
 			{
-				double width  = XmlUtil::getLengthAttr( node, "width", 0 );
+				Distance width  = XmlUtil::getLengthAttr( node, "width", Distance(0) );
-				double height = XmlUtil::getLengthAttr( node, "height", 0 );
+				Distance height = XmlUtil::getLengthAttr( node, "height", Distance(0) );
 
 				tmplate = new Template( brand, part, description, paperId, width, height );
 			}
@@ -226,22 +226,22 @@ namespace libglabels
 	{
 		QString id = XmlUtil::getStringAttr( node, "id", "0" );
 
-		double w   = XmlUtil::getLengthAttr( node, "width", 0 );
+		Distance w   = XmlUtil::getLengthAttr( node, "width", Distance(0) );
-		double h   = XmlUtil::getLengthAttr( node, "height", 0 );
+		Distance h   = XmlUtil::getLengthAttr( node, "height", Distance(0) );
-		double r   = XmlUtil::getLengthAttr( node, "round", 0 );
+		Distance r   = XmlUtil::getLengthAttr( node, "round", Distance(0) );
 
-		double xWaste, yWaste;
+		Distance xWaste, yWaste;
 
-		double waste = XmlUtil::getLengthAttr( node, "waste", -1 );
+		Distance waste = XmlUtil::getLengthAttr( node, "waste", Distance(-1) );
-		if ( waste >= 0 )
+		if ( waste >= Distance(0) )
 		{
 			xWaste = waste;
 			yWaste = waste;
 		}
 		else
 		{
-			xWaste = XmlUtil::getLengthAttr( node, "x_waste", 0 );
+			xWaste = XmlUtil::getLengthAttr( node, "x_waste", Distance(0) );
-			yWaste = XmlUtil::getLengthAttr( node, "y_waste", 0 );
+			yWaste = XmlUtil::getLengthAttr( node, "y_waste", Distance(0) );
 		}
 
 		Frame *frame = new FrameRect( w, h, r, xWaste, yWaste, id );
@@ -256,9 +256,9 @@ namespace libglabels
 	{
 		QString id    = XmlUtil::getStringAttr( node, "id", "0" );
 
-		double  w     = XmlUtil::getLengthAttr( node, "width", 0 );
+		Distance w     = XmlUtil::getLengthAttr( node, "width", Distance(0) );
-		double  h     = XmlUtil::getLengthAttr( node, "height", 0 );
+		Distance h     = XmlUtil::getLengthAttr( node, "height", Distance(0) );
-		double  waste = XmlUtil::getLengthAttr( node, "waste", -1 );
+		Distance waste = XmlUtil::getLengthAttr( node, "waste", Distance(0) );
 
 		Frame *frame = new FrameEllipse( w, h, waste, id );
 
@@ -272,8 +272,8 @@ namespace libglabels
 	{
 		QString id    = XmlUtil::getStringAttr( node, "id", "0" );
 
-		double  r     = XmlUtil::getLengthAttr( node, "radius", 0 );
+		Distance r     = XmlUtil::getLengthAttr( node, "radius", Distance(0) );
-		double  waste = XmlUtil::getLengthAttr( node, "waste", -1 );
+		Distance waste = XmlUtil::getLengthAttr( node, "waste", Distance(0) );
 
 		Frame *frame = new FrameRound( r, waste, id );
 
@@ -287,11 +287,11 @@ namespace libglabels
 	{
 		QString id    = XmlUtil::getStringAttr( node, "id", "0" );
 
-		double  r1    = XmlUtil::getLengthAttr( node, "radius", 0 );
+		Distance r1    = XmlUtil::getLengthAttr( node, "radius", Distance(0) );
-		double  r2    = XmlUtil::getLengthAttr( node, "hole", 0 );
+		Distance r2    = XmlUtil::getLengthAttr( node, "hole", Distance(0) );
-		double  w     = XmlUtil::getLengthAttr( node, "width", 0 );
+		Distance w     = XmlUtil::getLengthAttr( node, "width", Distance(0) );
-		double  h     = XmlUtil::getLengthAttr( node, "height", 0 );
+		Distance h     = XmlUtil::getLengthAttr( node, "height", Distance(0) );
-		double  waste = XmlUtil::getLengthAttr( node, "waste", -1 );
+		Distance waste = XmlUtil::getLengthAttr( node, "waste", Distance(0) );
 
 		Frame *frame = new FrameCd( r1, r2, w, h, waste, id );
 
@@ -344,11 +344,11 @@ namespace libglabels
 		int      nX = XmlUtil::getIntAttr( node, "nx", 1 );
 		int      nY = XmlUtil::getIntAttr( node, "ny", 1 );
 
-		double x0 = XmlUtil::getLengthAttr( node, "x0", 0 );
+		Distance x0 = XmlUtil::getLengthAttr( node, "x0", Distance(0) );
-		double y0 = XmlUtil::getLengthAttr( node, "y0", 0 );
+		Distance y0 = XmlUtil::getLengthAttr( node, "y0", Distance(0) );
 
-		double dX = XmlUtil::getLengthAttr( node, "dx", 0 );
+		Distance dX = XmlUtil::getLengthAttr( node, "dx", Distance(0) );
-		double dY = XmlUtil::getLengthAttr( node, "dy", 0 );
+		Distance dY = XmlUtil::getLengthAttr( node, "dy", Distance(0) );
 
 		frame->addLayout( new Layout( nX, nY, x0, y0, dX, dY ) );
 	}
@@ -356,7 +356,7 @@ namespace libglabels
 
 	void XmlTemplateParser::parseMarkupMarginNode( const QDomElement &node, Frame *frame )
 	{
-		double size = XmlUtil::getLengthAttr( node, "size", 0 );
+		Distance size = XmlUtil::getLengthAttr( node, "size", Distance(0) );
 
 		frame->addMarkup( new MarkupMargin( frame, size ) );
 	}
@@ -364,10 +364,10 @@ namespace libglabels
 
 	void XmlTemplateParser::parseMarkupLineNode( const QDomElement &node, Frame *frame )
 	{
-		double x1 = XmlUtil::getLengthAttr( node, "x1", 0 );
+		Distance x1 = XmlUtil::getLengthAttr( node, "x1", Distance(0) );
-		double y1 = XmlUtil::getLengthAttr( node, "y1", 0 );
+		Distance y1 = XmlUtil::getLengthAttr( node, "y1", Distance(0) );
-		double x2 = XmlUtil::getLengthAttr( node, "x2", 0 );
+		Distance x2 = XmlUtil::getLengthAttr( node, "x2", Distance(0) );
-		double y2 = XmlUtil::getLengthAttr( node, "y2", 0 );
+		Distance y2 = XmlUtil::getLengthAttr( node, "y2", Distance(0) );
 
 		frame->addMarkup( new MarkupLine( x1, y1, x2, y2 ) );
 	}
@@ -375,9 +375,9 @@ namespace libglabels
 
 	void XmlTemplateParser::parseMarkupCircleNode( const QDomElement &node, Frame *frame )
 	{
-		double x0 = XmlUtil::getLengthAttr( node, "x0", 0 );
+		Distance x0 = XmlUtil::getLengthAttr( node, "x0", Distance(0) );
-		double y0 = XmlUtil::getLengthAttr( node, "y0", 0 );
+		Distance y0 = XmlUtil::getLengthAttr( node, "y0", Distance(0) );
-		double r  = XmlUtil::getLengthAttr( node, "radius", 0 );
+		Distance r  = XmlUtil::getLengthAttr( node, "radius", Distance(0) );
 
 		frame->addMarkup( new MarkupCircle( x0, y0, r ) );
 	}
@@ -385,11 +385,11 @@ namespace libglabels
 
 	void XmlTemplateParser::parseMarkupRectNode( const QDomElement &node, Frame *frame )
 	{
-		double x1 = XmlUtil::getLengthAttr( node, "x1", 0 );
+		Distance x1 = XmlUtil::getLengthAttr( node, "x1", Distance(0) );
-		double y1 = XmlUtil::getLengthAttr( node, "y1", 0 );
+		Distance y1 = XmlUtil::getLengthAttr( node, "y1", Distance(0) );
-		double w  = XmlUtil::getLengthAttr( node, "w", 0 );
+		Distance w  = XmlUtil::getLengthAttr( node, "w", Distance(0) );
-		double h  = XmlUtil::getLengthAttr( node, "h", 0 );
+		Distance h  = XmlUtil::getLengthAttr( node, "h", Distance(0) );
-		double r  = XmlUtil::getLengthAttr( node, "r", 0 );
+		Distance r  = XmlUtil::getLengthAttr( node, "r", Distance(0) );
 
 		frame->addMarkup( new MarkupRect( x1, y1, w, h, r ) );
 	}
@@ -397,10 +397,10 @@ namespace libglabels
 
 	void XmlTemplateParser::parseMarkupEllipseNode( const QDomElement &node, Frame *frame )
 	{
-		double x1 = XmlUtil::getLengthAttr( node, "x1", 0 );
+		Distance x1 = XmlUtil::getLengthAttr( node, "x1", Distance(0) );
-		double y1 = XmlUtil::getLengthAttr( node, "y1", 0 );
+		Distance y1 = XmlUtil::getLengthAttr( node, "y1", Distance(0) );
-		double w  = XmlUtil::getLengthAttr( node, "w", 0 );
+		Distance w  = XmlUtil::getLengthAttr( node, "w", Distance(0) );
-		double h  = XmlUtil::getLengthAttr( node, "h", 0 );
+		Distance h  = XmlUtil::getLengthAttr( node, "h", Distance(0) );
 
 		frame->addMarkup( new MarkupEllipse( x1, y1, w, h ) );
 	}

libglabels/XmlTemplateParser.h

@@ -1,6 +1,6 @@
 /*  XmlTemplateParser.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *

libglabels/XmlUtil.cpp

@@ -1,6 +1,6 @@
 /*  XmlUtil.cpp
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -27,12 +27,12 @@
 namespace libglabels
 {
 
-	Units XmlUtil::mDefaultUnits;
+	Distance::Units XmlUtil::mUnits;
 
 
 	XmlUtil::XmlUtil()
 	{
-		mDefaultUnits = Units::point();
+		mUnits = Distance::Units::PT;
 	}
 
 
@@ -42,19 +42,19 @@ namespace libglabels
 	}
 
 
-	Units XmlUtil::defaultUnits()
+	Distance::Units XmlUtil::units()
 	{
 		init();
 
-		return mDefaultUnits;
+		return mUnits;
 	}
 
 
-	void XmlUtil::setDefaultUnits( const Units& defaultUnits )
+	void XmlUtil::setUnits( Distance::Units units )
 	{
 		init();
 
-		mDefaultUnits = defaultUnits;
+		mUnits = units;
 	}
 
 
@@ -200,9 +200,9 @@ namespace libglabels
 	}
 
 
-	double XmlUtil::getLengthAttr( const QDomElement& node,
+	Distance XmlUtil::getLengthAttr( const QDomElement& node,
 					 const QString&     name,
-				       double             default_value )
+					 const Distance&    default_value )
 	{
 		init();
 
@@ -215,16 +215,13 @@ namespace libglabels
 
 			valueStream >> value >> unitsString;
 
-			if ( !Units::isIdValid( unitsString ) )
+			if ( !unitsString.isEmpty() && !Distance::isIdValid( unitsString ) )
 			{
 				qWarning() << "Error: bad length value in attribute "
 					   << node.tagName() << ":" <<  name << "=" << valueString;
-				return default_value;
 			}
 
-			Units units = Units::fromId( unitsString );
+			return Distance( value, unitsString );
-
-			return value *  units.pointsPerUnit();
 		}
 
 		return default_value;
@@ -283,12 +280,11 @@ namespace libglabels
 
 	void XmlUtil::setLengthAttr( QDomElement&    node,
 				     const QString&  name,
-				     double         value )
+				     const Distance& value )
 	{
 		init();
 
-		value *= mDefaultUnits.unitsPerPoint();
+		node.setAttribute( name, QString::number(value.inUnits(mUnits)) + Distance::toId(mUnits) );
-		node.setAttribute( name, QString::number(value) + mDefaultUnits.id() );
 	}
 
 }

libglabels/XmlUtil.h

@@ -1,6 +1,6 @@
 /*  XmlUtil.h
  *
- *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *  Copyright (C) 2013-2016  Jim Evins <evins@snaught.com>
  *
  *  This file is part of gLabels-qt.
  *
@@ -25,7 +25,7 @@
 #include <QDomElement>
 #include <stdint.h>
 
-#include "Units.h"
+#include "Distance.h"
 
 
 namespace libglabels
@@ -41,8 +41,8 @@ namespace libglabels
 
 		static void init();
 
-		static Units defaultUnits();
+		static Distance::Units units();
-		static void setDefaultUnits( const Units& defaultUnits );
+		static void setUnits( Distance::Units units );
 
 		static QString  getStringAttr( const QDomElement& node,
 		                               const QString&     name,
@@ -68,9 +68,9 @@ namespace libglabels
 		                             const QString&     name,
 		                             const QString&     default_value );
 
-		static double   getLengthAttr( const QDomElement& node,
+		static Distance getLengthAttr( const QDomElement& node,
 		                               const QString&     name,
-		                               double             default_value );
+		                               const Distance&    default_value );
 
 		static void     setStringAttr( QDomElement&   node,
 		                               const QString& name,
@@ -94,10 +94,10 @@ namespace libglabels
 
 		static void     setLengthAttr( QDomElement&    node,
 		                               const QString&  name,
-		                               double         value );
+		                               const Distance& value );
 
 	private:
-		static Units mDefaultUnits;
+		static Distance::Units mUnits;
 
 	};
 

libglabels/privateConstants.h

@@ -22,7 +22,7 @@
 #define libglabels_privateConstants_h
 
 
-#include <QString>
+#include "Distance.h"
 
 
 namespace libglabels
@@ -31,7 +31,8 @@ namespace libglabels
 	namespace Constants
 	{
 
-	        const double EPSILON = 0.5;  /* Allowed error when comparing dimensions. (0.5pts ~= .007in ~= .2mm) */
+		const Distance EPSILON( 0.5, Distance::Units::PT );
+
 	}
 
 }