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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation 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 <QtGui>
#include <QApplication>
class MyPushButton : public QPushButton
{
public:
MyPushButton(QWidget *parent = 0);
void paintEvent(QPaintEvent *);
};
MyPushButton::MyPushButton(QWidget *parent)
: QPushButton(parent)
{
}
//! [0]
void MyPushButton::paintEvent(QPaintEvent *)
{
QStyleOptionButton option;
option.initFrom(this);
option.state = isDown() ? QStyle::State_Sunken : QStyle::State_Raised;
if (isDefault())
option.features |= QStyleOptionButton::DefaultButton;
option.text = text();
option.icon = icon();
QPainter painter(this);
style()->drawControl(QStyle::CE_PushButton, &option, &painter, this);
}
//! [0]
class MyStyle : public QStyle
{
public:
MyStyle();
void drawPrimitive(PrimitiveElement element, const QStyleOption *option,
QPainter *painter, const QWidget *widget);
};
MyStyle::MyStyle()
{
//! [1]
QStyleOptionFrame *option;
if (const QStyleOptionFrame *frameOption =
qstyleoption_cast<const QStyleOptionFrame *>(option)) {
QStyleOptionFrameV2 frameOptionV2(*frameOption);
// draw the frame using frameOptionV2
}
//! [1]
//! [2]
if (const QStyleOptionProgressBar *progressBarOption =
qstyleoption_cast<const QStyleOptionProgressBar *>(option)) {
QStyleOptionProgressBarV2 progressBarV2(*progressBarOption);
// draw the progress bar using progressBarV2
}
//! [2]
//! [3]
if (const QStyleOptionTab *tabOption =
qstyleoption_cast<const QStyleOptionTab *>(option)) {
QStyleOptionTabV2 tabV2(*tabOption);
// draw the tab using tabV2
}
//! [3]
}
//! [4]
void MyStyle::drawPrimitive(PrimitiveElement element,
const QStyleOption *option,
QPainter *painter,
const QWidget *widget)
{
if (element == PE_FrameFocusRect) {
const QStyleOptionFocusRect *focusRectOption =
qstyleoption_cast<const QStyleOptionFocusRect *>(option);
if (focusRectOption) {
// ...
}
}
// ...
}
//! [4]
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyPushButton button;
button.show();
return app.exec();
}
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