ruglory
79813e4a8a
git-svn-id: https://svn.code.sf.net/p/qlscribe/svn/trunk@33 cac9541e-1b8d-4bfa-827e-589bba606050
142 lines
3.8 KiB
C++
142 lines
3.8 KiB
C++
/* qlscribe - Qt based application to print lightScribe discs
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Copyright (C) 2009 Vyacheslav Kononenko <vyacheslav@kononenko.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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$Id$ */
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#include "qcdview.h"
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#include "qcdscene.h"
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#include "mainwindow.h"
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#include <QCloseEvent>
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#include <QMessageBox>
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QCDView::QCDView( QWidget *parent )
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: QGraphicsView( parent ),
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m_mask( new QPixmap )
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{
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setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
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setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
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centerOn( 0, 0 );
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}
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QCDView::~QCDView()
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{
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}
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QSize QCDView::sizeHint () const
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{
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return QSize( 600, 600 );
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}
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void QCDView::setScene( QCDScene *scene )
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{
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QGraphicsView::setScene( scene );
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}
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QCDScene *QCDView::scene() const
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{
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return static_cast< QCDScene * >( QGraphicsView::scene() );
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}
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void QCDView::closeEvent( QCloseEvent *event )
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{
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QCDScene *cdscene = scene();
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if( cdscene && !cdscene->isSaved() ) {
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QMessageBox::StandardButton button =
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QMessageBox::question( this,
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tr( "Confitmation" ),
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cdscene->name() + tr( " is changed, do you want to save it?" ),
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QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel );
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if( button == QMessageBox::Cancel ) {
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event->ignore();
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return;
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}
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if( button == QMessageBox::Yes ) {
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QWidget *parent = parentWidget();
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for( ; parent->parentWidget(); parent = parent->parentWidget() );
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if( !static_cast< MainWindow * >( parent )->saveScene( cdscene ) ) {
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event->ignore();
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return;
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}
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}
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}
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event->accept();
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}
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inline
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void drawCircle( QPainter *painter, double radi )
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{
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painter->drawEllipse( int( -radi ), int( -radi ),
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int( radi * 2 ), int( radi * 2 ) );
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}
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void QCDView::drawCD( QPainter *painter, const QRectF & rect, bool alpha )
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{
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painter->setBrush( alpha ? Qt::lightGray : Qt::gray );
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painter->drawRect( rect );
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painter->setBrush( alpha ? Qt::black : Qt::white );
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drawCircle( painter, 59.0 );
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painter->setBrush( alpha ? Qt::lightGray : Qt::darkGray );
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drawCircle( painter, 21.7 );
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painter->setBrush( alpha ? Qt::white : Qt::gray );
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drawCircle( painter, 10.7 );
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}
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void QCDView::drawForeground ( QPainter * painter, const QRectF & rect )
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{
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if( !painter ) return;
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if( m_mask->size() != frameSize() ) {
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*m_mask = QPixmap( frameSize() );
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{
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QPainter paint( m_mask );
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paint.setWorldTransform( painter->transform() );
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drawCD( &paint, rect, false );
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}
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{
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QPixmap alpha( frameSize() );
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QPainter paint( &alpha );
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paint.setWorldTransform( painter->transform() );
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drawCD( &paint, rect, true );
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m_mask->setAlphaChannel( alpha );
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}
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}
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painter->resetTransform();
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painter->drawPixmap( 0, 0, *m_mask );
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}
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void QCDView::drawBackground ( QPainter * painter, const QRectF & rect )
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{
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if( painter )
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drawCD( painter, rect, false );
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}
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void QCDView::resizeEvent( QResizeEvent * event )
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{
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QGraphicsScene *scn = scene();
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if( scn )
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fitInView( scn->sceneRect(), Qt::KeepAspectRatio );
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}
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