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/***************************************************************************
* Copyright (C) 2011 by Peter Penz <[email protected]> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, 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 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 "kitemlistselectiontoggle.h"
#include <KIconEffect>
#include <KIconLoader>
#include <QPainter>
#include <KDebug>
KItemListSelectionToggle::KItemListSelectionToggle(QGraphicsItem* parent) :
QGraphicsWidget(parent, 0),
m_checked(false),
m_hovered(false)
{
setAcceptHoverEvents(true);
}
KItemListSelectionToggle::~KItemListSelectionToggle()
{
}
void KItemListSelectionToggle::setChecked(bool checked)
{
if (m_checked != checked) {
m_checked = checked;
m_pixmap = QPixmap();
update();
}
}
bool KItemListSelectionToggle::isChecked() const
{
return m_checked;
}
void KItemListSelectionToggle::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
if (m_pixmap.isNull()) {
updatePixmap();
}
const qreal x = (size().width() - qreal(m_pixmap.width())) / 2;
const qreal y = (size().height() - qreal(m_pixmap.height())) / 2;
painter->drawPixmap(x, y, m_pixmap);
}
void KItemListSelectionToggle::hoverEnterEvent(QGraphicsSceneHoverEvent* event)
{
QGraphicsWidget::hoverEnterEvent(event);
m_hovered = true;
m_pixmap = QPixmap();
}
void KItemListSelectionToggle::hoverLeaveEvent(QGraphicsSceneHoverEvent* event)
{
QGraphicsWidget::hoverLeaveEvent(event);
m_hovered = false;
m_pixmap = QPixmap();
}
void KItemListSelectionToggle::updatePixmap()
{
const char* icon = m_checked ? "list-remove" : "list-add";
int iconSize = qMin(size().width(), size().height());
if (iconSize < KIconLoader::SizeSmallMedium) {
iconSize = KIconLoader::SizeSmall;
} else if (iconSize < KIconLoader::SizeMedium) {
iconSize = KIconLoader::SizeSmallMedium;
} else if (iconSize < KIconLoader::SizeLarge) {
iconSize = KIconLoader::SizeMedium;
} else if (iconSize < KIconLoader::SizeHuge) {
iconSize = KIconLoader::SizeLarge;
} else if (iconSize < KIconLoader::SizeEnormous) {
iconSize = KIconLoader::SizeHuge;
}
m_pixmap = KIconLoader::global()->loadIcon(QLatin1String(icon), KIconLoader::NoGroup, iconSize);
if (m_hovered) {
KIconLoader::global()->iconEffect()->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
}
}
#include "kitemlistselectiontoggle.moc"
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