Created skeletal rich print preview widget.

glabels/CMakeLists.txt

@@ -35,6 +35,7 @@ set (glabels_sources
   ObjectEditor.cpp
   Outline.cpp
   PrintView.cpp
+  Preview.cpp
   TemplatePicker.cpp
   TemplatePickerItem.cpp
   TextNode.cpp
@@ -64,6 +65,7 @@ set (glabels_qobject_headers
   NewLabelDialog.h
   ObjectEditor.h
   PrintView.h
+  Preview.h
   SimplePreview.h
   TemplatePicker.h
   View.h

glabels/MainWindow.cpp

@@ -69,12 +69,13 @@ namespace glabels
 		QWidget* mergePage = createMergePage();
 		QWidget* printPage = createPrintPage();
 
-		QTabWidget* notebook = new QTabWidget();
+		mNotebook = new QTabWidget();
-		notebook->addTab( editorPage, "Editor" );
+		mNotebook->addTab( editorPage, "Editor" );
-		notebook->addTab( mergePage, "Merge" );
+		mNotebook->addTab( mergePage, "Merge" );
-		notebook->addTab( printPage, "Print" );
+		mNotebook->addTab( printPage, "Print" );
-		
+		mNotebook->setEnabled( false );
-		setCentralWidget( notebook );
+
+		setCentralWidget( mNotebook );
 
 		setDocVerbsEnabled( false );
 		setPasteVerbsEnabled( false );
@@ -114,6 +115,7 @@ namespace glabels
 		mObjectEditor->setModel( mModel );
 		mPrintView->setModel( mModel );
 
+		mNotebook->setEnabled( true );
 		setDocVerbsEnabled( true );
 		setSelectionVerbsEnabled( false );
 		setMultiSelectionVerbsEnabled( false );

glabels/MainWindow.h

@@ -189,6 +189,7 @@ namespace glabels
 		QToolBar* fileToolBar;
 		QToolBar* editorToolBar;
 
+		QTabWidget*   mNotebook;
 		LabelModel*   mModel;
 		View*         mView;
 		ObjectEditor* mObjectEditor;

glabels/Preview.cpp

@@ -0,0 +1,175 @@
+/*  Preview.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 "Preview.h"
+
+#include "LabelModel.h"
+
+#include <QGraphicsRectItem>
+#include <QGraphicsDropShadowEffect>
+#include <QtDebug>
+
+
+//
+// Private Configuration Data
+//
+namespace
+{
+        const QColor  paperColor( 255, 255, 255 );
+        const QColor  paperOutlineColor( 0, 0, 0 );
+	const double  paperOutlineWidthPixels = 1;
+
+        const QColor  shadowColor( 64, 64, 64 );
+	const double  shadowOffsetPixels = 3;
+	const double  shadowRadiusPixels = 12;
+
+        const QColor  labelColor( 255, 255, 255 );
+        const QColor  labelOutlineColor( 215, 215, 215 );
+	const double  labelOutlineWidthPixels = 1;
+}
+
+
+namespace glabels
+{
+
+	///
+	/// Constructor
+	///
+	Preview::Preview( QWidget *parent )
+		: mModel(0), QGraphicsView(parent)
+	{
+		mScene = new QGraphicsScene();
+		setScene( mScene );
+
+		setAttribute(Qt::WA_TranslucentBackground);
+		viewport()->setAutoFillBackground(false);
+
+		setFrameStyle( QFrame::NoFrame );
+		setRenderHints( QPainter::Antialiasing );
+	}
+
+
+	///
+	/// Set model
+	///
+	void Preview::setModel( const LabelModel* model )
+	{
+		mModel = model;
+
+		clearScene();
+
+		if ( mModel != NULL )
+		{
+			// Set scene up with a 5% margin around paper
+			double x = -0.05 * mModel->tmplate()->pageWidth();
+			double y = -0.05 * mModel->tmplate()->pageHeight();
+			double w = 1.10 * mModel->tmplate()->pageWidth();
+			double h = 1.10 * mModel->tmplate()->pageHeight();
+
+			mScene->setSceneRect( x, y, w, h );
+			fitInView( mScene->sceneRect(), Qt::KeepAspectRatio );
+
+			drawPaper( mModel->tmplate()->pageWidth(), mModel->tmplate()->pageHeight() );
+			drawLabels();
+		}
+	}
+
+
+	///
+	/// Resize Event Handler
+	///
+	void Preview::resizeEvent( QResizeEvent* event )
+	{
+		fitInView( mScene->sceneRect(), Qt::KeepAspectRatio );
+	}
+
+
+	///
+	/// Clear View
+	///
+	void Preview::clearScene()
+	{
+		foreach ( QGraphicsItem *item, mScene->items() )
+		{
+			mScene->removeItem( item );
+			delete item;
+		}
+	}
+
+
+	///
+	/// Draw Paper
+	///
+	void Preview::drawPaper( double pw, double ph )
+	{
+		QGraphicsDropShadowEffect *shadowEffect = new QGraphicsDropShadowEffect();
+		shadowEffect->setColor( shadowColor );
+		shadowEffect->setOffset( shadowOffsetPixels );
+		shadowEffect->setBlurRadius( shadowRadiusPixels );
+
+		QBrush brush( paperColor );
+		QPen pen( paperOutlineColor );
+		pen.setCosmetic( true );
+		pen.setWidthF( paperOutlineWidthPixels );
+
+		QGraphicsRectItem *pageItem = new QGraphicsRectItem( 0, 0, pw, ph );
+		pageItem->setBrush( brush );
+		pageItem->setPen( pen );
+		pageItem->setGraphicsEffect( shadowEffect );
+				
+		mScene->addItem( pageItem );
+	}
+
+
+	///
+	/// Draw Labels on Paper
+	///
+	void Preview::drawLabels()
+	{
+		libglabels::Frame *frame = mModel->tmplate()->frames().first();
+
+		foreach (libglabels::Point origin, frame->getOrigins() )
+		{
+			drawLabel( origin.x(), origin.y(), frame->path() );
+		}
+	}
+
+
+	///
+	/// Draw a Single Label at x,y
+	///
+	void Preview::drawLabel( double x, double y, const QPainterPath &path )
+	{
+		QBrush brush( labelColor );
+		QPen pen( labelOutlineColor );
+		pen.setStyle( Qt::DotLine );
+		pen.setCosmetic( true );
+		pen.setWidthF( labelOutlineWidthPixels );
+
+		QGraphicsPathItem *labelItem  = new QGraphicsPathItem( path );
+		labelItem->setBrush( brush );
+		labelItem->setPen( pen );
+		labelItem->setPos( x, y );
+
+		mScene->addItem( labelItem );
+	}
+
+
+}

glabels/Preview.h

@@ -0,0 +1,85 @@
+/*  Preview.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 glabels_Preview_h
+#define glabels_Preview_h
+
+#include <QGraphicsView>
+#include <QGraphicsScene>
+
+#include <QList>
+
+
+namespace glabels
+{
+	class LabelModel; // Forward reference
+
+
+	///
+	///  Preview Widget
+	///
+	class Preview : public QGraphicsView
+	{
+		Q_OBJECT
+
+
+		/////////////////////////////////
+		// Life Cycle
+		/////////////////////////////////
+	public:
+		Preview( QWidget *parent = 0 );
+
+
+		/////////////////////////////////
+		// Properties
+		/////////////////////////////////
+	public:
+		void setModel( const LabelModel* model );
+
+
+		/////////////////////////////////////
+		// Event handlers
+		/////////////////////////////////////
+	protected:
+		void resizeEvent( QResizeEvent* event );
+
+		
+		/////////////////////////////////
+		// Internal Methods
+		/////////////////////////////////
+	private:
+		void clearScene();
+		void drawPaper( double pw, double ph );
+		void drawLabels();
+		void drawLabel( double x, double y, const QPainterPath &path );
+
+
+		/////////////////////////////////
+		// Private Data
+		/////////////////////////////////
+	private:
+		const LabelModel* mModel;
+		QGraphicsScene*   mScene;
+
+	};
+
+}
+
+#endif // glabels_Preview_h

glabels/PrintView.cpp

@@ -56,7 +56,7 @@ namespace glabels
 	///
 	void PrintView::onLabelSizeChanged()
 	{
-		preview->setTemplate( mModel->tmplate() );
+		preview->setModel( mModel );
 	}
 
 

glabels/SimplePreview.cpp

@@ -57,7 +57,7 @@ namespace glabels
 	///
 	/// Constructor
 	///
-	SimplePreview::SimplePreview( QWidget *parent = 0 )
+	SimplePreview::SimplePreview( QWidget *parent )
 		: mTmplate(NULL), mRotateFlag(false), QGraphicsView(parent)
 	{
 		mScene = new QGraphicsScene();

glabels/SimplePreview.h

@@ -44,7 +44,7 @@ namespace glabels
 		// Life Cycle
 		/////////////////////////////////
 	public:
-		SimplePreview( QWidget *parent );
+		SimplePreview( QWidget *parent = 0 );
 
 
 		/////////////////////////////////

glabels/ui/PrintView.ui

@@ -26,7 +26,7 @@
       <enum>QLayout::SetDefaultConstraint</enum>
      </property>
      <item>
-      <widget class="glabels::SimplePreview" name="preview" native="true">
+      <widget class="glabels::Preview" name="preview" native="true">
        <property name="sizePolicy">
         <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
          <horstretch>0</horstretch>
@@ -43,6 +43,9 @@
      </item>
      <item>
       <layout class="QHBoxLayout" name="horizontalLayout_6">
+       <property name="bottomMargin">
+        <number>16</number>
+       </property>
        <item>
         <spacer name="horizontalSpacer_8">
          <property name="orientation">
@@ -456,9 +459,9 @@
  </widget>
  <customwidgets>
   <customwidget>
-   <class>glabels::SimplePreview</class>
+   <class>glabels::Preview</class>
    <extends>QWidget</extends>
-   <header>SimplePreview.h</header>
+   <header>Preview.h</header>
    <container>1</container>
   </customwidget>
  </customwidgets>