/**************************************************************************** ** ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the documentation of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Digia. For licensing terms and ** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Digia gives you certain additional ** rights. These rights are described in the Digia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ //! [0] QPainter painter(this); painter.setPen(Qt::darkGreen); painter.drawRect(1, 2, 6, 4); //! [0] //! [1] QPainter painter(this); painter.setPen(Qt::darkGreen); painter.drawLine(2, 7, 6, 1); //! [1] //! [2] QPainter painter(this); painter.setRenderHint( QPainter::Antialiasing); painter.setPen(Qt::darkGreen); painter.drawRect(1, 2, 6, 4); //! [2] //! [3] QPainter painter(this); painter.setRenderHint( QPainter::Antialiasing); painter.setPen(Qt::darkGreen); painter.drawLine(2, 7, 6, 1); //! [3] //! [4] QPainter painter(this); painter.setWindow(QRect(-50, -50, 100, 100)); //! [4] //! [5] int side = qMin(width(), height()) int x = (width() - side / 2); int y = (height() - side / 2); painter.setViewport(x, y, side, side); //! [5]