Mega Code Archive
QGraphicsView, QGraphicsItem and QGraphicsScene
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Foundations of Qt Development\Chapter07\graphicsview\opengl\main.cpp
/*
* Copyright (c) 2006-2007, Johan Thelin
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of APress nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <QApplication>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QGraphicsRectItem>
#include <QGLWidget>
QGraphicsItem *createItem( int x, QGraphicsScene *scene )
{
QGraphicsRectItem *rectItem = new QGraphicsRectItem( QRect( x+40, 40, 120, 120 ), 0, scene );
rectItem->setPen( QPen(Qt::black) );
rectItem->setBrush( Qt::gray );
QGraphicsRectItem *innerRectItem = new QGraphicsRectItem( QRect( x+50, 50, 45, 100 ), rectItem, scene );
innerRectItem->setPen( QPen(Qt::black) );
innerRectItem->setBrush( Qt::white );
QGraphicsEllipseItem *ellipseItem = new QGraphicsEllipseItem( QRect( x+105, 50, 45, 100 ), rectItem, scene );
ellipseItem->setPen( QPen(Qt::black) );
ellipseItem->setBrush( Qt::white );
return rectItem;
}
int main( int argc, char **argv )
{
QApplication app( argc, argv );
QGraphicsScene scene( QRect( 0, 00, 1000, 200 ) );
QGraphicsItem *item1 = createItem( 0, &scene );
QGraphicsItem *item2 = createItem( 200, &scene );
item2->translate( 300, 100 );
item2->rotate( 30 );
item2->translate( -300, -100 );
QGraphicsItem *item3 = createItem( 400, &scene );
item3->translate( 500, 100 );
item3->scale( 0.5, 0.7 );
item3->translate( -500, -100 );
QGraphicsItem *item4 = createItem( 600, &scene );
item4->translate( 700, 100 );
item4->shear( 0.1, 0.3 );
item4->translate( -700, -100 );
QGraphicsItem *item5 = createItem( 800, &scene );
item5->translate( 900, 100 );
item5->scale( 0.5, 0.7 );
item5->rotate( 30 );
item5->shear( 0.1, 0.3 );
item5->translate( -900, -100 );
QGraphicsView view;
view.setScene( &scene );
view.setViewport( new QGLWidget() );
view.show();
return app.exec();
}
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