be15856f61
Change copyrights and license headers from Nokia to Digia Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e Reviewed-by: Lars Knoll <lars.knoll@digia.com> Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
103 lines
3.5 KiB
C++
103 lines
3.5 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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#include <math.h>
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#include "starrating.h"
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const int PaintingScaleFactor = 20;
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//! [0]
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StarRating::StarRating(int starCount, int maxStarCount)
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{
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myStarCount = starCount;
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myMaxStarCount = maxStarCount;
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starPolygon << QPointF(1.0, 0.5);
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for (int i = 1; i < 5; ++i)
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starPolygon << QPointF(0.5 + 0.5 * cos(0.8 * i * 3.14),
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0.5 + 0.5 * sin(0.8 * i * 3.14));
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diamondPolygon << QPointF(0.4, 0.5) << QPointF(0.5, 0.4)
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<< QPointF(0.6, 0.5) << QPointF(0.5, 0.6)
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<< QPointF(0.4, 0.5);
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}
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//! [0]
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//! [1]
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QSize StarRating::sizeHint() const
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{
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return PaintingScaleFactor * QSize(myMaxStarCount, 1);
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}
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//! [1]
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//! [2]
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void StarRating::paint(QPainter *painter, const QRect &rect,
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const QPalette &palette, EditMode mode) const
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{
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing, true);
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painter->setPen(Qt::NoPen);
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if (mode == Editable) {
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painter->setBrush(palette.highlight());
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} else {
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painter->setBrush(palette.foreground());
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}
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int yOffset = (rect.height() - PaintingScaleFactor) / 2;
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painter->translate(rect.x(), rect.y() + yOffset);
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painter->scale(PaintingScaleFactor, PaintingScaleFactor);
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for (int i = 0; i < myMaxStarCount; ++i) {
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if (i < myStarCount) {
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painter->drawPolygon(starPolygon, Qt::WindingFill);
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} else if (mode == Editable) {
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painter->drawPolygon(diamondPolygon, Qt::WindingFill);
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}
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painter->translate(1.0, 0.0);
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}
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painter->restore();
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}
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//! [2]
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