118 lines
3.0 KiB
C++
118 lines
3.0 KiB
C++
/*****************************************************************************
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* Qwt Examples - Copyright (C) 2002 Uwe Rathmann
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* This file may be used under the terms of the 3-clause BSD License
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*****************************************************************************/
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#include "MainWindow.h"
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#include "Canvas.h"
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#include <QToolBar>
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#include <QToolButton>
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#include <QLayout>
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#include <QLabel>
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#include <QFileDialog>
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#include <QBuffer>
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#include <QPainter>
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#include <QSvgGenerator>
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#include <QStatusBar>
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MainWindow::MainWindow()
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{
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QWidget* w = new QWidget( this );
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m_canvas[0] = new Canvas( Canvas::Svg, this );
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m_canvas[0]->setAutoFillBackground( true );
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m_canvas[0]->setPalette( Qt::gray );
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m_canvas[1] = new Canvas( Canvas::VectorGraphic, this );
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m_canvas[1]->setAutoFillBackground( true );
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m_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( m_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( m_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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m_canvas[0]->setSvg( document );
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m_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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m_canvas[0]->setSvg( buf.data() );
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m_canvas[1]->setSvg( buf.data() );
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}
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#include "moc_MainWindow.cpp"
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