kwin/thumbnailitem.cpp

251 lines
6.7 KiB
C++
Raw Normal View History

/********************************************************************
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 <QtDeclarative/QDeclarativeContext>
#include <QtDeclarative/QDeclarativeEngine>
#include <QtDeclarative/QDeclarativeView>
// KDE
#include <KDE/KDebug>
namespace KWin
{
AbstractThumbnailItem::AbstractThumbnailItem(QDeclarativeItem *parent)
: QDeclarativeItem(parent)
, m_clip(true)
, m_parent(QWeakPointer<EffectWindowImpl>())
, m_parentWindow(0)
, m_brightness(1.0)
, m_saturation(1.0)
{
setFlags(flags() & ~QGraphicsItem::ItemHasNoContents);
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::setParentWindow(qulonglong parentWindow)
{
m_parentWindow = parentWindow;
findParentEffectWindow();
if (!m_parent.isNull()) {
m_parent.data()->registerThumbnail(this);
}
}
void AbstractThumbnailItem::findParentEffectWindow()
{
if (effects) {
if (m_parentWindow) {
if (EffectWindowImpl *w = static_cast<EffectWindowImpl*>(effects->findWindow(m_parentWindow))) {
m_parent = QWeakPointer<EffectWindowImpl>(w);
return;
}
}
QDeclarativeContext *ctx = QDeclarativeEngine::contextForObject(this);
if (!ctx) {
kDebug(1212) << "No Context";
return;
}
const QVariant variant = ctx->engine()->rootContext()->contextProperty(QStringLiteral("viewId"));
if (!variant.isValid()) {
kDebug(1212) << "Required context property 'viewId' not found";
return;
}
if (EffectWindowImpl *w = static_cast<EffectWindowImpl*>(effects->findWindow(variant.value<qulonglong>()))) {
m_parent = QWeakPointer<EffectWindowImpl>(w);
m_parentWindow = variant.value<qulonglong>();
}
}
}
void AbstractThumbnailItem::setClip(bool clip)
{
m_clip = clip;
emit clipChanged(clip);
}
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();
}
WindowThumbnailItem::WindowThumbnailItem(QDeclarativeItem* 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, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
if (effects) {
QDeclarativeItem::paint(painter, option, widget);
return;
}
Client *client = Workspace::self()->findClient(WindowMatchPredicate(m_wId));
if (!client) {
QDeclarativeItem::paint(painter, option, widget);
return;
}
QPixmap pixmap = client->icon(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(QDeclarativeItem *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, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
if (effects) {
QDeclarativeItem::paint(painter, option, widget);
return;
}
// TODO: render icon
}
void DesktopThumbnailItem::repaint(EffectWindow *w)
{
if (w->isOnDesktop(m_desktop)) {
update();
}
}
} // namespace KWin