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

glabels/CMakeLists.txt

@@ -34,8 +34,10 @@ set (glabels_sources
   NewLabelDialog.cpp
   ObjectEditor.cpp
   Outline.cpp
+  PageRenderer.cpp
   PrintView.cpp
   Preview.cpp
+  PreviewOverlayItem.cpp
   TemplatePicker.cpp
   TemplatePickerItem.cpp
   TextNode.cpp

glabels/PageRenderer.cpp

@@ -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();
+	}
+
+}

glabels/PageRenderer.h

@@ -0,0 +1,101 @@
+/*  PageRenderer.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_PageRenderer_h
+#define glabels_PageRenderer_h
+
+
+#include "libglabels/Point.h"
+
+#include <QVector>
+#include <QRect>
+
+
+class QPainter; // Forward reference
+
+
+namespace glabels
+{
+	class LabelModel; // Forward reference
+	class MergeRecord; // Forward reference
+
+
+	///
+	///  PageRenderer Widget
+	///
+	class PageRenderer
+	{
+		/////////////////////////////////
+		// Life Cycle
+		/////////////////////////////////
+	public:
+		PageRenderer();
+
+
+		/////////////////////////////////
+		// Public Methods
+		/////////////////////////////////
+	public:
+		void setModel( const LabelModel* model );
+		void setNLabels( int nLabels );
+		void setStartLabel( int startLabel );
+		void setPrintOutlines( bool printOutlinesFlag );
+		void setPrintCropMarks( bool printCropMarksFlag );
+		void setPrintReverse( bool printReverseFlag );
+		void setIPage( int iPage );
+		int nPages() const;
+		QRectF pageRect() const;
+		void printPage( QPainter* painter ) const;
+
+
+		/////////////////////////////////
+		// Internal Methods
+		/////////////////////////////////
+	private:
+		void updateNPages();
+		void printSimplePage( QPainter* painter, int iPage ) const;
+		void printMergePage( QPainter* painter, int iPage ) const;
+		void printCropMarks( QPainter* painter ) const;
+		void printOutline( QPainter* painter ) const;
+		void clipLabel( QPainter* painter ) const;
+		void printLabel( QPainter* painter, MergeRecord* record ) const;
+
+
+		/////////////////////////////////
+		// Private Data
+		/////////////////////////////////
+	private:
+		const LabelModel* mModel;
+		int               mNLabels;
+		int               mStartLabel;
+		bool              mPrintOutlines;
+		bool              mPrintCropMarks;
+		bool              mPrintReverse;
+		int               mIPage;
+
+		int               mNPages;
+		int               mNLabelsPerPage;
+
+		QVector<libglabels::Point> mOrigins;
+	};
+
+}
+
+#endif // glabels_PageRenderer_h

glabels/Preview.cpp

@@ -21,6 +21,7 @@
 #include "Preview.h"
 
 #include "LabelModel.h"
+#include "PreviewOverlayItem.h"
 
 #include <QGraphicsRectItem>
 #include <QGraphicsDropShadowEffect>
@@ -53,7 +54,7 @@ namespace glabels
 	/// Constructor
 	///
 	Preview::Preview( QWidget *parent )
-		: mModel(0), QGraphicsView(parent)
+		: mModel(0), mRenderer(0), QGraphicsView(parent)
 	{
 		mScene = new QGraphicsScene();
 		setScene( mScene );
@@ -88,10 +89,20 @@ namespace glabels
 
 			drawPaper( mModel->tmplate()->pageWidth(), mModel->tmplate()->pageHeight() );
 			drawLabels();
+			drawPreviewOverlay();
 		}
 	}
 
 
+	///
+	/// Set renderer
+	///
+	void Preview::setRenderer( const PageRenderer* renderer )
+	{
+		mRenderer = renderer;
+	}
+
+
 	///
 	/// Resize Event Handler
 	///
@@ -157,18 +168,31 @@ namespace glabels
 	///
 	void Preview::drawLabel( double x, double y, const QPainterPath &path )
 	{
-		QBrush brush( labelColor );
+		QBrush brush( Qt::NoBrush );
 		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 );
+		QGraphicsPathItem *labelOutlineItem  = new QGraphicsPathItem( path );
+		labelOutlineItem->setBrush( brush );
+		labelOutlineItem->setPen( pen );
+		labelOutlineItem->setPos( x, y );
 
-		mScene->addItem( labelItem );
+		mScene->addItem( labelOutlineItem );
+	}
+
+
+	///
+	/// Draw Preview Overlay
+	///
+	void Preview::drawPreviewOverlay()
+	{
+		if ( mRenderer )
+		{
+			PreviewOverlayItem* overlayItem = new PreviewOverlayItem( mRenderer );
+			mScene->addItem( overlayItem );
+		}
 	}
 
 

glabels/Preview.h

@@ -24,7 +24,7 @@
 #include <QGraphicsView>
 #include <QGraphicsScene>
 
-#include <QList>
+#include "PageRenderer.h"
 
 
 namespace glabels
@@ -52,6 +52,7 @@ namespace glabels
 		/////////////////////////////////
 	public:
 		void setModel( const LabelModel* model );
+		void setRenderer( const PageRenderer* renderer );
 
 
 		/////////////////////////////////////
@@ -69,14 +70,16 @@ namespace glabels
 		void drawPaper( double pw, double ph );
 		void drawLabels();
 		void drawLabel( double x, double y, const QPainterPath &path );
+		void drawPreviewOverlay();
 
 
 		/////////////////////////////////
 		// Private Data
 		/////////////////////////////////
 	private:
-		const LabelModel* mModel;
-		QGraphicsScene*   mScene;
+		const LabelModel*   mModel;
+		const PageRenderer* mRenderer;    
+		QGraphicsScene*     mScene;
 
 	};
 

glabels/PreviewOverlayItem.cpp

@@ -0,0 +1,46 @@
+/*  PreviewOverlayItem.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 "PreviewOverlayItem.h"
+
+#include "PageRenderer.h"
+
+
+namespace glabels
+{
+
+	PreviewOverlayItem::PreviewOverlayItem( const PageRenderer* renderer, QGraphicsItem* parent )
+		: QGraphicsItem(parent), mRenderer(renderer)
+	{
+	}
+
+
+	QRectF PreviewOverlayItem::boundingRect() const
+	{
+		return mRenderer->pageRect();
+	}
+
+
+	void PreviewOverlayItem::paint( QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget )
+	{
+		mRenderer->printPage( painter );
+	}
+
+}

glabels/PreviewOverlayItem.h

@@ -0,0 +1,63 @@
+/*  PreviewOverlayItem.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_PreviewOverlayItem_h
+#define glabels_PreviewOverlayItem_h
+
+#include <QGraphicsItem>
+
+
+namespace glabels
+{
+	class PageRenderer; // Forward reference
+
+
+	///
+	///  PreviewOverlayItem Widget
+	///
+	class PreviewOverlayItem : public QGraphicsItem
+	{
+
+		/////////////////////////////////
+		// Life Cycle
+		/////////////////////////////////
+	public:
+		PreviewOverlayItem( const PageRenderer* renderer, QGraphicsItem* parent = 0 );
+
+
+		/////////////////////////////////////
+		// Virtual method implementations
+		/////////////////////////////////////
+	public:
+		QRectF boundingRect() const;
+		void paint( QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget );
+
+		
+		/////////////////////////////////
+		// Private Data
+		/////////////////////////////////
+	private:
+		const PageRenderer* mRenderer;
+
+	};
+
+}
+
+#endif // glabels_PreviewOverlayItem_h

glabels/PrintView.cpp

@@ -33,6 +33,8 @@ namespace glabels
 		: QWidget(parent)
 	{
 		setupUi( this );
+
+		preview->setRenderer( &mRenderer );
 	}
 
 
@@ -42,6 +44,8 @@ namespace glabels
 	void PrintView::setModel( LabelModel* model )
 	{
 		mModel = model;
+		mRenderer.setModel( model );
+		mRenderer.setNLabels( model->frame()->nLabels() );
 
 		connect( mModel, SIGNAL(sizeChanged()), this, SLOT(onLabelSizeChanged()) );
 		connect( mModel, SIGNAL(changed()), this, SLOT(onLabelChanged()) );
@@ -57,6 +61,7 @@ namespace glabels
 	void PrintView::onLabelSizeChanged()
 	{
 		preview->setModel( mModel );
+		mRenderer.setModel( mModel );
 	}
 
 
@@ -65,6 +70,7 @@ namespace glabels
 	///
 	void PrintView::onLabelChanged()
 	{
+		preview->update();
 	}
 	
 }

glabels/PrintView.h

@@ -22,6 +22,7 @@
 #define glabels_PrintView_h
 
 #include "ui_PrintView.h"
+#include "PageRenderer.h"
 
 
 namespace glabels
@@ -62,7 +63,8 @@ namespace glabels
 		// Private Data
 		/////////////////////////////////
 	private:
-		LabelModel* mModel;
+		LabelModel*   mModel;
+		PageRenderer mRenderer;
 
 	};