146 lines
4.4 KiB
C++
146 lines
4.4 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2011 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "thumbnailitem.h"
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// KWin
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#include "client.h"
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#include "effects.h"
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#include "workspace.h"
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// Qt
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#include <QtDeclarative/QDeclarativeContext>
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#include <QtDeclarative/QDeclarativeEngine>
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#include <QtDeclarative/QDeclarativeView>
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// KDE
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#include <KDE/KDebug>
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namespace KWin
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{
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ThumbnailItem::ThumbnailItem(QDeclarativeItem* parent)
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: QDeclarativeItem(parent)
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, m_wId(0)
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, m_clip(true)
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, m_parent(QWeakPointer<EffectWindowImpl>())
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, m_parentWindow(0)
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{
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setFlags(flags() & ~QGraphicsItem::ItemHasNoContents);
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if (effects) {
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connect(effects, SIGNAL(windowAdded(KWin::EffectWindow*)), SLOT(effectWindowAdded()));
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connect(effects, SIGNAL(windowDamaged(KWin::EffectWindow*,QRect)), SLOT(repaint(KWin::EffectWindow*)));
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}
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QTimer::singleShot(0, this, SLOT(init()));
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}
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ThumbnailItem::~ThumbnailItem()
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{
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}
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void ThumbnailItem::init()
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{
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findParentEffectWindow();
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if (!m_parent.isNull()) {
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m_parent.data()->registerThumbnail(this);
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}
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}
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void ThumbnailItem::setParentWindow(qulonglong parentWindow)
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{
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m_parentWindow = parentWindow;
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findParentEffectWindow();
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if (!m_parent.isNull()) {
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m_parent.data()->registerThumbnail(this);
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}
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}
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void ThumbnailItem::findParentEffectWindow()
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{
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if (effects) {
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if (m_parentWindow) {
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if (EffectWindowImpl *w = static_cast<EffectWindowImpl*>(effects->findWindow(m_parentWindow))) {
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m_parent = QWeakPointer<EffectWindowImpl>(w);
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return;
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}
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}
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QDeclarativeContext *ctx = QDeclarativeEngine::contextForObject(this);
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if (!ctx) {
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kDebug(1212) << "No Context";
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return;
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}
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const QVariant variant = ctx->engine()->rootContext()->contextProperty("viewId");
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if (!variant.isValid()) {
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kDebug(1212) << "Required context property 'viewId' not found";
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return;
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}
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if (EffectWindowImpl *w = static_cast<EffectWindowImpl*>(effects->findWindow(variant.value<qulonglong>()))) {
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m_parent = QWeakPointer<EffectWindowImpl>(w);
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m_parentWindow = variant.value<qulonglong>();
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}
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}
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}
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void ThumbnailItem::setWId(qulonglong wId)
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{
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m_wId = wId;
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emit wIdChanged(wId);
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}
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void ThumbnailItem::setClip(bool clip)
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{
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m_clip = clip;
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emit clipChanged(clip);
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}
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void ThumbnailItem::effectWindowAdded()
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{
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// the window might be added before the EffectWindow is created
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// by using this slot we can register the thumbnail when it is finally created
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if (m_parent.isNull()) {
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findParentEffectWindow();
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if (!m_parent.isNull()) {
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m_parent.data()->registerThumbnail(this);
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}
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}
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}
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void ThumbnailItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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if (effects) {
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QDeclarativeItem::paint(painter, option, widget);
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return;
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}
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Client *client = Workspace::self()->findClient(WindowMatchPredicate(m_wId));
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if (!client) {
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QDeclarativeItem::paint(painter, option, widget);
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return;
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}
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QPixmap pixmap = client->icon(boundingRect().size().toSize());
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const QSize size(boundingRect().size().toSize() - pixmap.size());
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painter->drawPixmap(boundingRect().adjusted(size.width()/2.0, size.height()/2.0, -size.width()/2.0, -size.height()/2.0).toRect(),
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pixmap);
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}
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void ThumbnailItem::repaint(KWin::EffectWindow *w)
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{
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if (static_cast<KWin::EffectWindowImpl*>(w)->window()->window() == m_wId) {
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update();
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}
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}
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} // namespace KWin
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