Added page renderer class. Use renderer to overlay onto preview.

2015-08-21 14:47:38 -04:00
parent 3bb129b1d1
commit f7eaf8f6ce
9 changed files with 501 additions and 11 deletions
@@ -0,0 +1,243 @@
+/*  PageRenderer.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 "PageRenderer.h"
+
+#include "LabelModel.h"
+#include "MergeRecord.h"
+
+#include <QPainter>
+#include <QtDebug>
+
+
+namespace
+{
+	const QColor labelOutlineColor( 0, 0, 0 );
+	const double labelOutlineWidth = 0.25;
+	const double tickOffset = 2.25;
+	const double tickLength = 18;
+}
+
+
+namespace glabels
+{
+
+	PageRenderer::PageRenderer()
+		: mModel(0), mNLabels(0), mStartLabel(0),
+		  mPrintOutlines(false), mPrintCropMarks(false), mPrintReverse(false),
+		  mIPage(0), mNPages(0)
+	{
+	}
+
+
+	void PageRenderer::setModel( const LabelModel* model )
+	{
+		mModel = model;
+		mOrigins = mModel->frame()->getOrigins();
+		mNLabelsPerPage = mModel->frame()->nLabels();
+		updateNPages();
+	}
+
+	
+	void PageRenderer::setNLabels( int nLabels )
+	{
+		mNLabels = nLabels;
+		updateNPages();
+	}
+
+	
+	void PageRenderer::setStartLabel( int startLabel )
+	{
+		mStartLabel = startLabel;
+		updateNPages();
+	}
+
+	
+	void PageRenderer::setPrintOutlines( bool printOutlinesFlag )
+	{
+		mPrintOutlines = printOutlinesFlag;
+	}
+
+	
+	void PageRenderer::setPrintCropMarks( bool printCropMarksFlag )
+	{
+		mPrintCropMarks = printCropMarksFlag;
+	}
+
+	
+	void PageRenderer::setPrintReverse( bool printReverseFlag )
+	{
+		mPrintReverse = printReverseFlag;
+	}
+
+	
+	void PageRenderer::setIPage( int iPage )
+	{
+		mIPage = iPage;
+	}
+
+	
+	int PageRenderer::nPages() const
+	{
+		return mNPages;
+	}
+			
+	
+	QRectF PageRenderer::pageRect() const
+	{
+		if ( mModel )
+		{
+			return QRectF( 0, 0, mModel->tmplate()->pageWidth(), mModel->tmplate()->pageHeight() );
+		}
+		else
+		{
+			return QRectF( 0, 0, 0, 0 );
+		}
+	}
+			
+	
+	void PageRenderer::updateNPages()
+	{
+		if ( mModel )
+		{
+			/// @TODO merge case
+			
+			int lastLabel = mStartLabel + mNLabels;
+			
+			mNPages = lastLabel / mNLabelsPerPage;
+			if ( lastLabel % mNLabelsPerPage )
+			{
+				mNPages++;
+			}
+		}
+		else
+		{
+			mNPages = 0;
+		}
+	}
+
+	
+	void PageRenderer::printPage( QPainter* painter ) const
+	{
+		if ( mModel )
+		{
+			/// @TODO merge case
+		
+			printSimplePage( painter, mIPage );
+		}
+	}
+
+
+	void PageRenderer::printSimplePage( QPainter* painter, int iPage ) const
+	{
+		int iStart = 0;
+		int iEnd = mNLabelsPerPage;
+
+		if ( iPage == 0 )
+		{
+			iStart = mStartLabel;
+		}
+
+		int lastLabel = mStartLabel + mNLabels;
+		if ( (lastLabel / mNLabelsPerPage) == iPage )
+		{
+			iEnd = lastLabel % mNLabelsPerPage;
+		}
+
+		printCropMarks( painter );
+
+		for ( int i = iStart; i < iEnd; i++ )
+		{
+			painter->save();
+			painter->translate( mOrigins[i].x(), mOrigins[i].y() );
+			
+			painter->save();
+			clipLabel( painter );
+
+			printLabel( painter, 0 );
+
+			painter->restore();  // From before clip
+
+			printOutline( painter );
+			
+			painter->restore();  // From before translation
+		}
+	}
+
+	
+	void PageRenderer::printMergePage( QPainter* painter, int iPage ) const
+	{
+		/// @TODO merge case
+	}
+	
+	
+	void PageRenderer::printCropMarks( QPainter* painter ) const
+	{
+		if ( mPrintCropMarks )
+		{
+			// TODO
+		}
+	}
+
+	
+	void PageRenderer::printOutline( QPainter* painter ) const
+	{
+		if ( mPrintOutlines )
+		{
+			painter->save();
+
+			painter->setBrush( QBrush( Qt::NoBrush ) );
+			painter->setPen( QPen( labelOutlineColor, labelOutlineWidth ) );
+
+			painter->drawPath( mModel->frame()->path() );
+			
+			painter->restore();
+		}
+	}
+
+	
+	void PageRenderer::clipLabel( QPainter* painter ) const
+	{
+		// TODO: add clipPath() method to frame
+	}
+
+	
+	void PageRenderer::printLabel( QPainter* painter, MergeRecord* record ) const
+	{
+		painter->save();
+
+		if ( mModel->rotate() )
+		{
+			painter->rotate( 90.0 );
+			painter->translate( 0, mModel->h() );
+		}
+
+		if ( mPrintReverse )
+		{
+			painter->translate( mModel->w(), 0 );
+			painter->scale( -1, 1 );
+		}
+
+		mModel->draw( painter, false, record );
+
+		painter->restore();
+	}
+
+}