plasma-framework/private/style.cpp

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/*
* Copyright © 2008 Fredrik Höglund <fredrik@kde.org>
* Copyright © 2008 Marco Martin <notmart@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "style.h"
#include <QPainter>
#include <QStyleOptionComplex>
#include <KDebug>
#include <plasma/framesvg.h>
namespace Plasma {
class StylePrivate
{
public:
StylePrivate()
: scrollbar(0)
{
}
~StylePrivate()
{
}
Plasma::FrameSvg *scrollbar;
};
Style::Style()
: QCommonStyle(),
d(new StylePrivate)
{
d->scrollbar = new Plasma::FrameSvg(this);
d->scrollbar->setImagePath("widgets/scrollbar");
d->scrollbar->setCacheAllRenderedFrames(true);
}
Style::~Style()
{
delete d;
}
void Style::drawComplexControl(ComplexControl control,
const QStyleOptionComplex *option,
QPainter *painter,
const QWidget *widget) const
{
if (control != CC_ScrollBar) {
QCommonStyle::drawComplexControl(control, option, painter, widget);
return;
}
painter->save();
painter->setRenderHint(QPainter::Antialiasing);
const bool sunken = option->state & State_Sunken;
const QStyleOptionSlider *scrollOption = qstyleoption_cast<const QStyleOptionSlider *>(option);
QString prefix;
if (option->state & State_MouseOver) {
prefix= "mouseover-";
}
QRect subLine;
QRect addLine;
if (scrollOption && scrollOption->orientation == Qt::Horizontal) {
subLine = d->scrollbar->elementRect(prefix + "arrow-left").toRect();
addLine = d->scrollbar->elementRect(prefix + "arrow-right").toRect();
} else {
subLine = d->scrollbar->elementRect(prefix + "arrow-up").toRect();
addLine = d->scrollbar->elementRect(prefix + "arrow-down").toRect();
}
subLine.moveCenter(subControlRect(control, option, SC_ScrollBarSubLine, widget).center());
addLine.moveCenter(subControlRect(control, option, SC_ScrollBarAddLine, widget).center());
const QRect slider =
subControlRect(control, option, SC_ScrollBarSlider, widget).adjusted(1, 0, -1, 0);
d->scrollbar->setElementPrefix("background");
d->scrollbar->resizeFrame(option->rect.size());
d->scrollbar->paintFrame(painter);
if (sunken && scrollOption && scrollOption->activeSubControls & SC_ScrollBarSlider) {
d->scrollbar->setElementPrefix("sunken-slider");
} else {
d->scrollbar->setElementPrefix(prefix + "slider");
}
d->scrollbar->resizeFrame(slider.size());
d->scrollbar->paintFrame(painter, slider.topLeft());
if (scrollOption && scrollOption->orientation == Qt::Horizontal) {
if (sunken && scrollOption->activeSubControls & SC_ScrollBarAddLine) {
d->scrollbar->paint(painter, addLine, "sunken-arrow-right");
} else {
d->scrollbar->paint(painter, addLine, prefix + "arrow-right");
}
if (sunken && scrollOption->activeSubControls & SC_ScrollBarSubLine) {
d->scrollbar->paint(painter, subLine, "sunken-arrow-left");
} else {
d->scrollbar->paint(painter, subLine, prefix + "arrow-left");
}
} else {
if (sunken && scrollOption && scrollOption->activeSubControls & SC_ScrollBarAddLine) {
d->scrollbar->paint(painter, addLine, "sunken-arrow-down");
} else {
d->scrollbar->paint(painter, addLine, prefix + "arrow-down");
}
if (sunken && scrollOption && scrollOption->activeSubControls & SC_ScrollBarSubLine) {
d->scrollbar->paint(painter, subLine, "sunken-arrow-up");
} else {
d->scrollbar->paint(painter, subLine, prefix + "arrow-up");
}
}
painter->restore();
}
}