806dda08d6
Updated those .qdoc files to refer to the new relative examples emplacement. Images and snippets to be moved later. Also grouped all widgets related examples under widgets. Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f Reviewed-by: J-P Nurmi <j-p.nurmi@nokia.com>
103 lines
3.6 KiB
C++
103 lines
3.6 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
|
|
** Contact: http://www.qt-project.org/
|
|
**
|
|
** This file is part of the examples of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:BSD$
|
|
** You may use this file under the terms of the BSD license as follows:
|
|
**
|
|
** "Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions are
|
|
** met:
|
|
** * Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** * Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in
|
|
** the documentation and/or other materials provided with the
|
|
** distribution.
|
|
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
|
|
** the names of its contributors may be used to endorse or promote
|
|
** products derived from this software without specific prior written
|
|
** permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#include <QtWidgets>
|
|
#include <math.h>
|
|
|
|
#include "starrating.h"
|
|
|
|
const int PaintingScaleFactor = 20;
|
|
|
|
//! [0]
|
|
StarRating::StarRating(int starCount, int maxStarCount)
|
|
{
|
|
myStarCount = starCount;
|
|
myMaxStarCount = maxStarCount;
|
|
|
|
starPolygon << QPointF(1.0, 0.5);
|
|
for (int i = 1; i < 5; ++i)
|
|
starPolygon << QPointF(0.5 + 0.5 * cos(0.8 * i * 3.14),
|
|
0.5 + 0.5 * sin(0.8 * i * 3.14));
|
|
|
|
diamondPolygon << QPointF(0.4, 0.5) << QPointF(0.5, 0.4)
|
|
<< QPointF(0.6, 0.5) << QPointF(0.5, 0.6)
|
|
<< QPointF(0.4, 0.5);
|
|
}
|
|
//! [0]
|
|
|
|
//! [1]
|
|
QSize StarRating::sizeHint() const
|
|
{
|
|
return PaintingScaleFactor * QSize(myMaxStarCount, 1);
|
|
}
|
|
//! [1]
|
|
|
|
//! [2]
|
|
void StarRating::paint(QPainter *painter, const QRect &rect,
|
|
const QPalette &palette, EditMode mode) const
|
|
{
|
|
painter->save();
|
|
|
|
painter->setRenderHint(QPainter::Antialiasing, true);
|
|
painter->setPen(Qt::NoPen);
|
|
|
|
if (mode == Editable) {
|
|
painter->setBrush(palette.highlight());
|
|
} else {
|
|
painter->setBrush(palette.foreground());
|
|
}
|
|
|
|
int yOffset = (rect.height() - PaintingScaleFactor) / 2;
|
|
painter->translate(rect.x(), rect.y() + yOffset);
|
|
painter->scale(PaintingScaleFactor, PaintingScaleFactor);
|
|
|
|
for (int i = 0; i < myMaxStarCount; ++i) {
|
|
if (i < myStarCount) {
|
|
painter->drawPolygon(starPolygon, Qt::WindingFill);
|
|
} else if (mode == Editable) {
|
|
painter->drawPolygon(diamondPolygon, Qt::WindingFill);
|
|
}
|
|
painter->translate(1.0, 0.0);
|
|
}
|
|
|
|
painter->restore();
|
|
}
|
|
//! [2]
|