Qt.git - Qt s a cross-platform application framework that is used for developing application software that can be run on various software and hardware platforms with little or no change in the underlying codebase, while still being a native application with native capabilities and speed.

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author	David Faure <faure@kde.org>	2009-05-22 08:49:30 (GMT)
committer	David Faure <faure@kde.org>	2009-05-22 08:49:30 (GMT)
commit	6d494ed2971597ee134d1fbf8019432d07286791 (patch)
tree	b2009af31e3a1d3cbb6a65482d10bf104f375844 /demos/mainwindow/toolbar.cpp
parent	f645346d32468ae3ded46f42d4e4f27135526913 (diff)
parent	f9d26f0bebd5bcc32d15c4a627251c44cf78389e (diff)
download	Qt-6d494ed2971597ee134d1fbf8019432d07286791.zip Qt-6d494ed2971597ee134d1fbf8019432d07286791.tar.gz Qt-6d494ed2971597ee134d1fbf8019432d07286791.tar.bz2

Merge branch 'master' of git://gitorious.org/qt/qt

Diffstat (limited to 'demos/mainwindow/toolbar.cpp')

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/**************************************************************************** ** ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the documentation of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** You may use this file under the terms of the BSD license as follows: ** ** "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 Nokia Corporation and its Subsidiary(-ies) 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." ** $QT_END_LICENSE$ ** ****************************************************************************/ //! [0] QLinearGradient gradient(0, 0, 100, 100); gradient.setColorAt(0, Qt::red); gradient.setColorAt(0.5, Qt::green); gradient.setColorAt(1, Qt::blue); painter.setBrush(gradient); painter.drawRect(0, 0, 100, 100); //! [0] //! [1] QRadialGradient gradient(50, 50, 50, 30, 30); gradient.setColorAt(0.2, Qt::white); gradient.setColorAt(0.8, Qt::green); gradient.setColorAt(1, Qt::black); painter.setBrush(gradient); painter.drawEllipse(0, 0, 100, 100); //! [1] //! [2] QConicalGradient gradient(60, 40, 0); gradient.setColorAt(0, Qt::black); gradient.setColorAt(0.4, Qt::green); gradient.setColorAt(0.6, Qt::white); gradient.setColorAt(1, Qt::black); painter.setBrush(gradient); painter.drawEllipse(0, 0, 100, 100); //! [2] //! [3] // Specfiy semi-transparent red painter.setBrush(QColor(255, 0, 0, 127)); painter.drawRect(0, 0, width()/2, height()); // Specify semi-transparend blue painter.setBrush(QColor(0, 0, 255, 127)); painter.drawRect(0, 0, width(), height()/2); //! [3] //! [4] // One line without anti-aliasing painter.drawLine(0, 0, width()/2, height()); // One line with anti-aliasing painter.setRenderHint(QPainter::Antialiasing); painter.drawLine(width()/2, 0, width()/2, height()); //! [4] //! [5] QPainterPath path; path.addRect(20, 20, 60, 60); path.addBezier(0, 0, 99, 0, 50, 50, 99, 99); path.addBezier(99, 99, 0, 99, 50, 50, 0, 0); painter.drawPath(path); //! [5] //! [6] QPixmap buffer(size()); QPainter painter(&buffer); // Paint code here painter.end(); bitBlt(this, 0, 0, &buffer); //! [6] //! [7] QPainter painter(this); // Paint code here painter.end(); //! [7] //! [8] unbufferedWidget->setAttribute(Qt::WA_PaintOnScreen); //! [8] //! [9] QLinearGradient gradient(0, 0, 100, 100); gradient.setColorAt(0, Qt::blue); gradient.setColorAt(1, Qt::red); painter.setPen(QPen(gradient, 0)); for (int y=fontSize; y<100; y+=fontSize) drawText(0, y, text); //! [9] //! [10] QImage image(100, 100, 32); QPainter painter(&image); // painter commands. painter.end(); //! [10]


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