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/*
* SPDX-FileCopyrightText: 2011 Peter Penz <[email protected]>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "kitemlistselectiontoggle.h"
#include <KIconLoader>
#include <QIcon>
#include <QPainter>
KItemListSelectionToggle::KItemListSelectionToggle(QGraphicsItem *parent)
: QGraphicsWidget(parent)
, m_checked(false)
, m_hovered(false)
{
}
KItemListSelectionToggle::~KItemListSelectionToggle() = default;
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::setHovered(bool hovered)
{
if (m_hovered != hovered) {
m_hovered = hovered;
m_pixmap = QPixmap();
update();
}
}
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() / m_pixmap.devicePixelRatioF())) / 2;
const qreal y = (size().height() - qreal(m_pixmap.height() / m_pixmap.devicePixelRatioF())) / 2;
painter->drawPixmap(x, y, m_pixmap);
}
void KItemListSelectionToggle::resizeEvent(QGraphicsSceneResizeEvent *event)
{
QGraphicsWidget::resizeEvent(event);
if (!m_pixmap.isNull()) {
const int pixmapSize = m_pixmap.size().width() / m_pixmap.devicePixelRatioF(); // Pixmap width is always equal pixmap height
if (pixmapSize != iconSize()) {
// If the required icon size is different from the actual pixmap size,
// overwrite the m_pixmap with an empty pixmap and reload the new
// icon on next re-painting.
m_pixmap = QPixmap();
}
}
}
void KItemListSelectionToggle::updatePixmap()
{
const QString icon = m_checked ? QStringLiteral("emblem-remove") : QStringLiteral("emblem-added");
m_pixmap = QIcon::fromTheme(icon).pixmap(iconSize(), m_hovered ? QIcon::Active : QIcon::Disabled);
}
int KItemListSelectionToggle::iconSize() const
{
const int iconSize = qMin(size().width(), size().height());
if (iconSize < KIconLoader::SizeSmallMedium) {
return KIconLoader::SizeSmall;
} else if (iconSize < KIconLoader::SizeMedium) {
return KIconLoader::SizeSmallMedium;
} else if (iconSize < KIconLoader::SizeLarge) {
return KIconLoader::SizeMedium;
} else if (iconSize < KIconLoader::SizeHuge) {
return KIconLoader::SizeLarge;
} else if (iconSize < KIconLoader::SizeEnormous) {
return KIconLoader::SizeHuge;
}
return iconSize;
}
#include "moc_kitemlistselectiontoggle.cpp"
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