2008-01-03 14:00:13 +00:00
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/********************************************************************
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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) 2007 Rivo Laks <rivolaks@hot.ee>
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Copyright (C) 2007 Lubos Lunak <l.lunak@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 "taskbarthumbnail.h"
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#include <kdebug.h>
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2011-01-30 14:34:42 +00:00
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#include <kwinglutils.h>
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2009-04-27 11:10:08 +00:00
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2008-01-03 14:00:13 +00:00
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// This effect shows a preview inside a window that has a special property set
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// on it that says which window and where to render. It is used by the taskbar
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// to show window previews in tooltips.
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namespace KWin
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{
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2011-01-30 14:34:42 +00:00
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KWIN_EFFECT(taskbarthumbnail, TaskbarThumbnailEffect)
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2008-01-03 14:00:13 +00:00
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TaskbarThumbnailEffect::TaskbarThumbnailEffect()
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2011-01-30 14:34:42 +00:00
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{
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2012-12-13 23:09:47 +00:00
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atom = effects->announceSupportProperty("_KDE_WINDOW_PREVIEW", this);
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2012-01-29 11:29:24 +00:00
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connect(effects, SIGNAL(windowAdded(KWin::EffectWindow*)), this, SLOT(slotWindowAdded(KWin::EffectWindow*)));
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connect(effects, SIGNAL(windowDeleted(KWin::EffectWindow*)), this, SLOT(slotWindowDeleted(KWin::EffectWindow*)));
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connect(effects, SIGNAL(windowDamaged(KWin::EffectWindow*,QRect)), this, SLOT(slotWindowDamaged(KWin::EffectWindow*,QRect)));
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connect(effects, SIGNAL(propertyNotify(KWin::EffectWindow*,long)), this, SLOT(slotPropertyNotify(KWin::EffectWindow*,long)));
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2011-01-30 14:34:42 +00:00
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}
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2008-01-03 14:00:13 +00:00
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TaskbarThumbnailEffect::~TaskbarThumbnailEffect()
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2011-01-30 14:34:42 +00:00
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{
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}
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2008-01-03 14:00:13 +00:00
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2011-01-30 14:34:42 +00:00
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void TaskbarThumbnailEffect::prePaintScreen(ScreenPrePaintData& data, int time)
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{
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2008-01-03 14:00:13 +00:00
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effects->prePaintScreen(data, time);
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2011-01-30 14:34:42 +00:00
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}
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2008-01-03 14:00:13 +00:00
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2011-01-30 14:34:42 +00:00
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void TaskbarThumbnailEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
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{
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2008-01-03 14:00:13 +00:00
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// TODO what if of the windows is translucent and one not? change data.mask?
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2011-01-30 14:34:42 +00:00
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effects->prePaintWindow(w, data, time);
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}
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2008-01-03 14:00:13 +00:00
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2011-01-30 14:34:42 +00:00
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void TaskbarThumbnailEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
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{
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effects->paintWindow(w, mask, region, data); // paint window first
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if (thumbnails.contains(w)) {
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// paint thumbnails on it
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2009-02-03 09:39:48 +00:00
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int mask = PAINT_WINDOW_TRANSFORMED;
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2012-07-12 15:20:17 +00:00
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if (data.opacity() == 1.0)
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2009-02-03 09:39:48 +00:00
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mask |= PAINT_WINDOW_OPAQUE;
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else
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mask |= PAINT_WINDOW_TRANSLUCENT;
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2010-06-02 20:04:54 +00:00
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mask |= PAINT_WINDOW_LANCZOS;
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2011-01-30 14:34:42 +00:00
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foreach (const Data & thumb, thumbnails.values(w)) {
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EffectWindow* thumbw = effects->findWindow(thumb.window);
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if (thumbw == NULL)
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2008-01-24 15:14:13 +00:00
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continue;
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2011-01-30 14:34:42 +00:00
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WindowPaintData thumbData(thumbw);
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2012-07-12 15:20:17 +00:00
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thumbData.multiplyOpacity(data.opacity());
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2011-11-30 20:15:35 +00:00
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QRect r, thumbRect(thumb.rect);
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2012-05-28 12:45:46 +00:00
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thumbRect.translate(w->pos() + QPoint(data.xTranslation(), data.yTranslation()));
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2012-05-28 10:00:31 +00:00
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thumbRect.setSize(QSize(thumbRect.width() * data.xScale(), thumbRect.height() * data.yScale())); // QSize has no vector multiplicator... :-(
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2009-04-27 11:10:08 +00:00
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2012-09-20 09:33:32 +00:00
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if (effects->isOpenGLCompositing()) {
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2011-01-30 14:34:42 +00:00
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if (data.shader) {
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thumbData.shader = data.shader;
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}
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} // if ( effects->compositingType() == KWin::OpenGLCompositing )
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2011-11-30 20:15:35 +00:00
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setPositionTransformations(thumbData, r, thumbw, thumbRect, Qt::KeepAspectRatio);
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2011-01-30 14:34:42 +00:00
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effects->drawWindow(thumbw, mask, r, thumbData);
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2008-01-03 14:00:13 +00:00
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}
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2011-01-30 14:34:42 +00:00
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}
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} // End of function
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2008-01-03 14:00:13 +00:00
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2011-03-12 14:04:22 +00:00
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void TaskbarThumbnailEffect::slotWindowDamaged(EffectWindow* w, const QRect& damage)
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2011-01-30 14:34:42 +00:00
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{
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Q_UNUSED(damage);
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2009-03-06 06:16:00 +00:00
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// Update the thumbnail if the window was damaged
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2011-01-30 14:34:42 +00:00
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foreach (EffectWindow * window, thumbnails.uniqueKeys())
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foreach (const Data & thumb, thumbnails.values(window))
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if (w == effects->findWindow(thumb.window))
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2011-08-27 16:22:05 +00:00
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window->addRepaint(thumb.rect);
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2011-01-30 14:34:42 +00:00
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}
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2009-03-06 06:16:00 +00:00
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2011-02-25 21:06:02 +00:00
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void TaskbarThumbnailEffect::slotWindowAdded(EffectWindow* w)
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2011-01-30 14:34:42 +00:00
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{
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2011-03-12 18:18:19 +00:00
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slotPropertyNotify(w, atom); // read initial value
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2011-01-30 14:34:42 +00:00
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}
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2008-01-03 14:00:13 +00:00
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2011-02-27 09:47:42 +00:00
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void TaskbarThumbnailEffect::slotWindowDeleted(EffectWindow* w)
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2011-01-30 14:34:42 +00:00
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{
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2011-09-10 05:56:58 +00:00
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foreach (EffectWindow *window, thumbnails.uniqueKeys()) {
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foreach (const Data &thumb, thumbnails.values(window)) {
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if (w == effects->findWindow(thumb.window)) {
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window->addRepaint(thumb.rect);
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}
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}
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}
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2011-01-30 14:34:42 +00:00
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thumbnails.remove(w);
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}
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2008-01-03 14:00:13 +00:00
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2011-03-12 18:18:19 +00:00
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void TaskbarThumbnailEffect::slotPropertyNotify(EffectWindow* w, long a)
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2011-01-30 14:34:42 +00:00
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{
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if (!w || a != atom)
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2008-01-03 14:00:13 +00:00
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return;
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2012-05-24 09:15:24 +00:00
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w->addRepaintFull();
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2011-01-30 14:34:42 +00:00
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thumbnails.remove(w);
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QByteArray data = w->readProperty(atom, atom, 32);
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if (data.length() < 1)
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2008-01-03 14:00:13 +00:00
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return;
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2011-01-30 14:34:42 +00:00
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long* d = reinterpret_cast< long* >(data.data());
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int len = data.length() / sizeof(d[ 0 ]);
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2008-01-03 14:00:13 +00:00
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int pos = 0;
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int cnt = d[ 0 ];
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++pos;
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2011-01-30 14:34:42 +00:00
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for (int i = 0;
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i < cnt;
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++i) {
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2008-01-03 14:00:13 +00:00
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int size = d[ pos ];
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2011-01-30 14:34:42 +00:00
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if (len - pos < size)
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2008-01-03 14:00:13 +00:00
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return; // format error
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++pos;
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Data data;
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data.window = d[ pos ];
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2011-01-30 14:34:42 +00:00
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data.rect = QRect(d[ pos + 1 ], d[ pos + 2 ], d[ pos + 3 ], d[ pos + 4 ]);
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thumbnails.insert(w, data);
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2011-08-27 16:22:05 +00:00
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w->addRepaint(data.rect);
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2008-01-03 14:00:13 +00:00
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pos += size;
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}
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2011-01-30 14:34:42 +00:00
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}
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2008-01-03 14:00:13 +00:00
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2011-08-27 09:21:31 +00:00
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bool TaskbarThumbnailEffect::isActive() const
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{
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return !thumbnails.isEmpty();
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}
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2008-01-03 14:00:13 +00:00
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} // namespace
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