mirror of
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110 lines
2.7 KiB
C++
110 lines
2.7 KiB
C++
#include "mainwindow.h"
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#include "canvas.h"
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#include <qtoolbar.h>
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#include <qtoolbutton.h>
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#include <qlayout.h>
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#include <qlabel.h>
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#include <qfiledialog.h>
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#include <qbuffer.h>
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#include <qpainter.h>
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#include <qsvggenerator.h>
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#include <qstatusbar.h>
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MainWindow::MainWindow()
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{
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QWidget *w = new QWidget( this );
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d_canvas[0] = new Canvas( Canvas::Svg, this );
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d_canvas[0]->setAutoFillBackground( true );
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d_canvas[0]->setPalette( Qt::gray );
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d_canvas[1] = new Canvas( Canvas::VectorGraphic, this );
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d_canvas[1]->setAutoFillBackground( true );
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d_canvas[1]->setPalette( Qt::gray );
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QVBoxLayout *vBox1 = new QVBoxLayout();
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vBox1->setContentsMargins( 0, 0, 0, 0 );
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vBox1->setSpacing( 5 );
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vBox1->addWidget( new QLabel( "SVG" ), 0, Qt::AlignCenter );
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vBox1->addWidget( d_canvas[0], 10 );
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QVBoxLayout *vBox2 = new QVBoxLayout();
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vBox2->setContentsMargins( 0, 0, 0, 0 );
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vBox2->setSpacing( 5 );
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vBox2->addWidget( new QLabel( "Vector Graphic" ), 0, Qt::AlignCenter );
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vBox2->addWidget( d_canvas[1], 10 );
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QHBoxLayout *layout = new QHBoxLayout( w );
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layout->addLayout( vBox1 );
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layout->addLayout( vBox2 );
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setCentralWidget( w );
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QToolBar *toolBar = new QToolBar( this );
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QToolButton *btnLoad = new QToolButton( toolBar );
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btnLoad->setText( "Load SVG" );
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btnLoad->setToolButtonStyle( Qt::ToolButtonTextUnderIcon );
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toolBar->addWidget( btnLoad );
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addToolBar( toolBar );
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connect( btnLoad, SIGNAL( clicked() ), this, SLOT( loadSVG() ) );
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#if 0
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QPainterPath path;
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path.addRect( QRectF( 1.0, 1.0, 2.0, 2.0 ) );
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loadPath( path );
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#endif
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};
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MainWindow::~MainWindow()
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{
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}
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void MainWindow::loadSVG()
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{
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QString dir = "/home1/uwe/qwt/qwt/tests/svg";
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const QString fileName = QFileDialog::getOpenFileName( NULL,
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"Load a Scaleable Vector Graphic (SVG) Document",
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dir, "SVG Files (*.svg)" );
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if ( !fileName.isEmpty() )
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loadSVG( fileName );
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statusBar()->showMessage( fileName );
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}
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void MainWindow::loadSVG( const QString &fileName )
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{
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QFile file( fileName );
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if ( !file.open(QIODevice::ReadOnly | QIODevice::Text) )
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return;
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const QByteArray document = file.readAll();
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file.close();
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d_canvas[0]->setSvg( document );
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d_canvas[1]->setSvg( document );
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}
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void MainWindow::loadPath( const QPainterPath &path )
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{
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QBuffer buf;
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QSvgGenerator generator;
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generator.setOutputDevice( &buf );
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QPainter painter( &generator );
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painter.setRenderHint( QPainter::Antialiasing, false );
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painter.setPen( QPen( Qt::blue, 0 ) );
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painter.setBrush( Qt::darkCyan );
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painter.drawPath( path );
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painter.end();
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d_canvas[0]->setSvg( buf.data() );
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d_canvas[1]->setSvg( buf.data() );
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}
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