Mega Code Archive
Set Dash Pattern for QPen
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Foundations of Qt Development\Chapter07\penpatterns\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 <QPixmap>
#include <QPainter>
int main( int argc, char **argv )
{
QApplication app( argc, argv );
QPixmap pixmap( 200, 100 );
pixmap.fill( Qt::white );
QPainter painter( &pixmap );
QPen pen( Qt::black );
pen.setStyle( Qt::SolidLine );
painter.setPen( pen );
painter.drawLine( QPoint( 10, 10 ), QPoint( 190, 10 ) );
pen.setStyle( Qt::DashDotLine );
painter.setPen( pen );
painter.drawLine( QPoint( 10, 50 ), QPoint( 190, 50 ) );
pen.setDashPattern( QVector<qreal>() << 1 << 1 << 1 << 1 << 2 << 2 << 2 << 2 << 4 << 4 << 4 << 4 << 8 << 8 << 8 << 8 );
pen.setStyle( Qt::CustomDashLine );
painter.setPen( pen );
painter.drawLine( QPoint( 10, 90 ), QPoint( 190, 90 ) );
pixmap.save( "penpatterns.png" );
return 0;
}
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