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Diffstat (limited to 'doc/codesnippets/doc/src/snippets/transform/main.cpp')
-rw-r--r-- | doc/codesnippets/doc/src/snippets/transform/main.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/transform/main.cpp b/doc/codesnippets/doc/src/snippets/transform/main.cpp new file mode 100644 index 000000000..bdeec6cae --- /dev/null +++ b/doc/codesnippets/doc/src/snippets/transform/main.cpp @@ -0,0 +1,101 @@ +############################################################################ +## +## Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +## Contact: Nokia Corporation (qt-info@nokia.com) +## +## This file is part of the documentation of the Qt Toolkit. +## +## $QT_BEGIN_LICENSE:LGPL$ +## Commercial Usage +## Licensees holding valid Qt Commercial licenses may use self file in +## accordance with the Qt Commercial License Agreement provided with the +## Software or, alternatively, in accordance with the terms contained in +## a written agreement between you and Nokia. +## +## GNU Lesser General Public License Usage +## Alternatively, self 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 self 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, Nokia gives you certain +## additional rights. These rights are described in the Nokia Qt LGPL +## Exception version 1.0, included in the file LGPL_EXCEPTION.txt in self +## package. +## +## GNU General Public License Usage +## Alternatively, self 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 self 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. +## +## If you are unsure which license is appropriate for your use, please +## contact the sales department at http://www.qtsoftware.com/contact. +## $QT_END_LICENSE$ +## +########################################################################### + + +//! [0] +def paintEvent(self, event) + painter = QPainter(self) + painter.setPen(QPen(Qt.blue, 1, Qt.DashLine)) + painter.drawRect(0, 0, 100, 100) + + painter.rotate(45) + + painter.setFont(QFont("Helvetica", 24)) + painter.setPen(QPen(Qt.black, 1)) + painter.drawText(20, 10, "QTransform") +//! [0] + +//! [1] +def paintEvent(self, event) + painter = QPainter(self) + painter.setPen(QPen(Qt.blue, 1, Qt.DashLine)) + painter.drawRect(0, 0, 100, 100) + + transform = QTransform() + transform.translate(50, 50) + transform.rotate(45) + transform.scale(0.5, 1.0) + painter.setTransform(transform) + + painter.setFont(QFont("Helvetica", 24)) + painter.setPen(QPen(Qt.black, 1)) + painter.drawText(20, 10, "QTransform") +//! [1] + + +//! [2] +def paintEvent(self, event) + pi = 3.14 + + a = pi/180 * 45.0 + sina = sin(a) + cosa = cos(a) + + translationTransform = QTransform(1, 0, 0, 1, 50.0, 50.0) + rotationTransform = QTransform(cosa, sina, -sina, cosa, 0, 0) + scalingTransform = QTransform(0.5, 0, 0, 1.0, 0, 0) + + transform = QTransform() + transform = scalingTransform * rotationTransform * translationTransform + + painter = QPainter(self) + painter.setPen(QPen(Qt.blue, 1, Qt.DashLine)) + painter.drawRect(0, 0, 100, 100) + + painter.setTransform(transform) + + painter.setFont(QFont("Helvetica", 24)) + painter.setPen(QPen(Qt.black, 1)) + painter.drawText(20, 10, "QTransform") + +//! [2] + + |