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Diffstat (limited to 'doc/codesnippets/examples/itemviews/pixelator/pixeldelegate.cpp')
-rw-r--r-- | doc/codesnippets/examples/itemviews/pixelator/pixeldelegate.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/doc/codesnippets/examples/itemviews/pixelator/pixeldelegate.cpp b/doc/codesnippets/examples/itemviews/pixelator/pixeldelegate.cpp new file mode 100644 index 000000000..93cdc1535 --- /dev/null +++ b/doc/codesnippets/examples/itemviews/pixelator/pixeldelegate.cpp @@ -0,0 +1,94 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the example classes of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this 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, 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, 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 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +//! [0] +def __init__(self, parent): + QAbstractItemDelegate.__init__(self, parent) + self.pixelSize = 12 +//! [0] + +//! [1] +def paint(self, painter, option, index): +//! [2] + if option.state and QStyle.State_Selected: + painter.fillRect(option.rect, option.palette.highlight()) +//! [1] + +//! [3] + size = qMin(option.rect.width(), option.rect.height()) +//! [3] //! [4] + brightness = index.model().data(index, Qt.DisplayRole).toInt() + radius = (size/2.0) - (brightness/255.0 * size/2.0) + if radius == 0.0: + return +//! [4] + +//! [5] + painter.save() +//! [5] //! [6] + painter.setRenderHint(QPainter.Antialiasing, true) +//! [6] //! [7] + painter.setPen(Qt.NoPen) +//! [7] //! [8] + if option.state and QStyle.State_Selected: +//! [8] //! [9] + painter.setBrush(option.palette.highlightedText()) + else +//! [2] + painter.setBrush(QBrush(Qt.black)) +//! [9] + +//! [10] + painter.drawEllipse(QRectF(option.rect.x() + option.rect.width()/2 - radius, + option.rect.y() + option.rect.height()/2 - radius, + 2*radius, 2*radius)) + painter.restore() +//! [10] + +//! [11] +def sizeHint(self, option, index): + return QSize(self.pixelSize, self.pixelSize) +//! [11] + +//! [12] +def setPixelSize(self, size): + self.pixelSize = size +//! [12] |