plasma-framework/declarativeimports/qtextracomponents/qiconitem.cpp
2012-05-01 14:46:19 +02:00

125 lines
3.2 KiB
C++

/*
* Copyright 2011 Marco Martin <mart@kde.org>
*
* 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 "qiconitem.h"
#include <KIcon>
#include <KIconLoader>
#include <KIconEffect>
#include <QPainter>
QIconItem::QIconItem(QDeclarativeItem *parent)
: QDeclarativeItem(parent),
m_smooth(false),
m_state(DefaultState)
{
setFlag(QGraphicsItem::ItemHasNoContents, false);
}
QIconItem::~QIconItem()
{
}
void QIconItem::setIcon(const QVariant &icon)
{
if(icon.canConvert<QIcon>()) {
m_icon = icon.value<QIcon>();
}
else if(icon.canConvert<QString>()) {
m_icon = KIcon(icon.toString());
}
update();
}
QIcon QIconItem::icon() const
{
return m_icon;
}
QIconItem::State QIconItem::state() const
{
return m_state;
}
void QIconItem::setState(QIconItem::State state)
{
if (m_state == state) {
return;
}
m_state = state;
emit stateChanged(state);
update();
}
int QIconItem::implicitWidth() const
{
return KIconLoader::global()->currentSize(KIconLoader::Desktop);
}
int QIconItem::implicitHeight() const
{
return KIconLoader::global()->currentSize(KIconLoader::Desktop);
}
void QIconItem::setSmooth(const bool smooth)
{
if (smooth == m_smooth) {
return;
}
m_smooth = smooth;
update();
}
bool QIconItem::smooth() const
{
return m_smooth;
}
void QIconItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
if (m_icon.isNull()) {
return;
}
//do without painter save, faster and the support can be compiled out
const bool wasAntiAlias = painter->testRenderHint(QPainter::Antialiasing);
const bool wasSmoothTransform = painter->testRenderHint(QPainter::SmoothPixmapTransform);
painter->setRenderHint(QPainter::Antialiasing, m_smooth);
painter->setRenderHint(QPainter::SmoothPixmapTransform, m_smooth);
if (m_state == ActiveState) {
QPixmap result = m_icon.pixmap(boundingRect().size().toSize());
result = KIconLoader::global()->iconEffect()->apply(result, KIconLoader::Desktop, KIconLoader::ActiveState);
painter->drawPixmap(0, 0, result);
} else {
m_icon.paint(painter, boundingRect().toRect(), Qt::AlignCenter, isEnabled() ? QIcon::Normal : QIcon::Disabled);
}
painter->setRenderHint(QPainter::Antialiasing, wasAntiAlias);
painter->setRenderHint(QPainter::SmoothPixmapTransform, wasSmoothTransform);
}
#include "qiconitem.moc"