diff options
Diffstat (limited to 'doc/codesnippets/doc/src/snippets/alphachannel.cpp')
-rw-r--r-- | doc/codesnippets/doc/src/snippets/alphachannel.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/alphachannel.cpp b/doc/codesnippets/doc/src/snippets/alphachannel.cpp new file mode 100644 index 000000000..c4146848b --- /dev/null +++ b/doc/codesnippets/doc/src/snippets/alphachannel.cpp @@ -0,0 +1,55 @@ +############################################################################ +## +## 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] + pixmap = QPixmap(100, 100) + pixmap.fill(Qt.transparent) + + gradient = QRadialGradient(50, 50, 50, 50, 50) + gradient.setColorAt(0, QColor.fromRgbF(1, 0, 0, 1)) + gradient.setColorAt(1, QColor.fromRgbF(0, 0, 0, 0)) + painter = QPainter(pixmap) + painter.fillRect(0, 0, 100, 100, gradient) + + channelImage = pixmap.alphaChannel() + update() +//! [0] + |