kwin/thumbnailitem.cpp

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2011 Martin Gräßlin <mgraesslin@kde.org>
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, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "thumbnailitem.h"
// KWin
#include "client.h"
#include "composite.h"
#include "effects.h"
#include "workspace.h"
#include "composite.h"
// Qt
#include <QDebug>
#include <QPainter>
#include <QQuickWindow>
namespace KWin
{
AbstractThumbnailItem::AbstractThumbnailItem(QQuickItem *parent)
: QQuickPaintedItem(parent)
, m_parent(QWeakPointer<EffectWindowImpl>())
, m_brightness(1.0)
, m_saturation(1.0)
, m_clipToItem()
{
Q_ASSERT(Compositor::isCreated());
connect(Compositor::self(), SIGNAL(compositingToggled(bool)), SLOT(compositingToggled()));
compositingToggled();
QTimer::singleShot(0, this, SLOT(init()));
}
AbstractThumbnailItem::~AbstractThumbnailItem()
{
}
void AbstractThumbnailItem::compositingToggled()
{
m_parent.clear();
if (effects) {
connect(effects, SIGNAL(windowAdded(KWin::EffectWindow*)), SLOT(effectWindowAdded()));
connect(effects, SIGNAL(windowDamaged(KWin::EffectWindow*,QRect)), SLOT(repaint(KWin::EffectWindow*)));
effectWindowAdded();
}
}
void AbstractThumbnailItem::init()
{
findParentEffectWindow();
if (!m_parent.isNull()) {
m_parent.data()->registerThumbnail(this);
}
}
void AbstractThumbnailItem::findParentEffectWindow()
{
if (effects) {
QQuickWindow *qw = window();
if (!qw) {
qDebug() << "No QQuickWindow assigned yet";
return;
}
if (auto *w = static_cast<EffectWindowImpl*>(effects->findWindow(qw->winId()))) {
m_parent = QWeakPointer<EffectWindowImpl>(w);
}
}
}
void AbstractThumbnailItem::effectWindowAdded()
{
// the window might be added before the EffectWindow is created
// by using this slot we can register the thumbnail when it is finally created
if (m_parent.isNull()) {
findParentEffectWindow();
if (!m_parent.isNull()) {
m_parent.data()->registerThumbnail(this);
}
}
}
void AbstractThumbnailItem::setBrightness(qreal brightness)
{
if (qFuzzyCompare(brightness, m_brightness)) {
return;
}
m_brightness = brightness;
update();
emit brightnessChanged();
}
void AbstractThumbnailItem::setSaturation(qreal saturation)
{
if (qFuzzyCompare(saturation, m_saturation)) {
return;
}
m_saturation = saturation;
update();
emit saturationChanged();
}
void AbstractThumbnailItem::setClipTo(QQuickItem *clip)
{
m_clipToItem = QPointer<QQuickItem>(clip);
emit clipToChanged();
}
WindowThumbnailItem::WindowThumbnailItem(QQuickItem* parent)
: AbstractThumbnailItem(parent)
, m_wId(0)
, m_client(NULL)
{
}
WindowThumbnailItem::~WindowThumbnailItem()
{
}
void WindowThumbnailItem::setWId(qulonglong wId)
{
if (m_wId == wId) {
return;
}
m_wId = wId;
if (m_wId != 0) {
setClient(Workspace::self()->findClient(WindowMatchPredicate(m_wId)));
} else if (m_client) {
m_client = NULL;
emit clientChanged();
}
emit wIdChanged(wId);
}
void WindowThumbnailItem::setClient(Client *client)
{
if (m_client == client) {
return;
}
m_client = client;
if (m_client) {
setWId(m_client->window());
} else {
setWId(0);
}
emit clientChanged();
}
void WindowThumbnailItem::paint(QPainter *painter)
{
if (effects) {
return;
}
Client *client = Workspace::self()->findClient(WindowMatchPredicate(m_wId));
if (!client) {
return;
}
QPixmap pixmap = client->icon().pixmap(boundingRect().size().toSize());
const QSize size(boundingRect().size().toSize() - pixmap.size());
painter->drawPixmap(boundingRect().adjusted(size.width()/2.0, size.height()/2.0, -size.width()/2.0, -size.height()/2.0).toRect(),
pixmap);
}
void WindowThumbnailItem::repaint(KWin::EffectWindow *w)
{
if (static_cast<KWin::EffectWindowImpl*>(w)->window()->window() == m_wId) {
update();
}
}
DesktopThumbnailItem::DesktopThumbnailItem(QQuickItem *parent)
: AbstractThumbnailItem(parent)
, m_desktop(0)
{
}
DesktopThumbnailItem::~DesktopThumbnailItem()
{
}
void DesktopThumbnailItem::setDesktop(int desktop)
{
desktop = qBound<int>(1, desktop, VirtualDesktopManager::self()->count());
if (desktop == m_desktop) {
return;
}
m_desktop = desktop;
update();
emit desktopChanged(m_desktop);
}
void DesktopThumbnailItem::paint(QPainter *painter)
{
Q_UNUSED(painter)
if (effects) {
return;
}
// TODO: render icon
}
void DesktopThumbnailItem::repaint(EffectWindow *w)
{
if (w->isOnDesktop(m_desktop)) {
update();
}
}
} // namespace KWin