b57ef77bf7
By default clip is enabled. This means that if the thumbnail would overlap the "parent" window, it does not get rendered at all. If set to false it will always be rendered. This is required for window strip where the complete screen width is used, so overlap does not matter.
120 lines
3.6 KiB
C++
120 lines
3.6 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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{
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setFlags(flags() & ~QGraphicsItem::ItemHasNoContents);
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if (effects) {
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connect(effects, SIGNAL(windowAdded(EffectWindow*)), SLOT(effectWindowAdded()));
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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::findParentEffectWindow()
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{
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if (effects) {
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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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}
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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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} // namespace KWin
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