kwin/effects/glide/glide.cpp

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2007 Philip Falkner <philip.falkner@gmail.com>
Copyright (C) 2009 Martin Gräßlin <mgraesslin@kde.org>
Copyright (C) 2010 Alexandre Pereira <pereira.alex@gmail.com>
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 "glide.h"
// KConfigSkeleton
#include "glideconfig.h"
#include <QTimeLine>
// Effect is based on fade effect by Philip Falkner
namespace KWin
{
static const int IsGlideWindow = 0x22A982D4;
GlideEffect::GlideEffect()
: Effect()
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{
initConfig<GlideConfig>();
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reconfigure(ReconfigureAll);
connect(effects, SIGNAL(windowAdded(KWin::EffectWindow*)), this, SLOT(slotWindowAdded(KWin::EffectWindow*)));
connect(effects, SIGNAL(windowClosed(KWin::EffectWindow*)), this, SLOT(slotWindowClosed(KWin::EffectWindow*)));
connect(effects, SIGNAL(windowDeleted(KWin::EffectWindow*)), this, SLOT(slotWindowDeleted(KWin::EffectWindow*)));
connect(effects, &EffectsHandler::windowDataChanged, this, &GlideEffect::cancelWindowGrab);
}
GlideEffect::~GlideEffect() = default;
bool GlideEffect::supported()
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{
return effects->isOpenGLCompositing() && effects->animationsSupported();
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}
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void GlideEffect::reconfigure(ReconfigureFlags)
{
// Fetch config with KConfigXT
GlideConfig::self()->read();
duration = animationTime<GlideConfig>(350);
effect = (EffectStyle) GlideConfig::glideEffect();
angle = GlideConfig::glideAngle();
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}
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void GlideEffect::prePaintScreen(ScreenPrePaintData& data, int time)
{
if (!windows.isEmpty())
data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
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effects->prePaintScreen(data, time);
}
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void GlideEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
{
InfoHash::iterator info = windows.find(w);
if (info != windows.end()) {
data.setTransformed();
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if (info->added)
info->timeLine->setCurrentTime(info->timeLine->currentTime() + time);
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else if (info->closed) {
info->timeLine->setCurrentTime(info->timeLine->currentTime() - time);
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if (info->deleted)
w->enablePainting(EffectWindow::PAINT_DISABLED_BY_DELETE);
}
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}
effects->prePaintWindow(w, data, time);
// if the window isn't to be painted, then let's make sure
// to track its progress
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if (info != windows.end() && !w->isPaintingEnabled() && !effects->activeFullScreenEffect())
w->addRepaintFull();
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}
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void GlideEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
{
InfoHash::const_iterator info = windows.constFind(w);
if (info != windows.constEnd()) {
const double progress = info->timeLine->currentValue();
data.setRotationAxis(Qt::XAxis);
data.setRotationAngle(angle * (1 - progress));
data.multiplyOpacity(progress);
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switch(effect) {
default:
case GlideInOut:
if (info->added)
glideIn(w, data, info);
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else if (info->closed)
glideOut(w, data, info);
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break;
case GlideOutIn:
if (info->added)
glideOut(w, data, info);
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if (info->closed)
glideIn(w, data, info);
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break;
case GlideIn: glideIn(w, data, info); break;
case GlideOut: glideOut(w, data, info); break;
}
}
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effects->paintWindow(w, mask, region, data);
}
void GlideEffect::glideIn(EffectWindow* w, WindowPaintData& data, const InfoHash::const_iterator &info)
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{
const double progress = info->timeLine->currentValue();
data *= progress;
data.translate(int(w->width() / 2 * (1 - progress)), int(w->height() / 2 * (1 - progress)));
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}
void GlideEffect::glideOut(EffectWindow* w, WindowPaintData& data, const InfoHash::const_iterator &info)
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{
const double progress = info->timeLine->currentValue();
data *= (2 - progress);
data.translate(- int(w->width() / 2 * (1 - progress)), - int(w->height() / 2 * (1 - progress)));
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}
void GlideEffect::postPaintWindow(EffectWindow* w)
{
InfoHash::iterator info = windows.find(w);
if (info != windows.end()) {
if (info->added && info->timeLine->currentValue() == 1.0) {
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windows.remove(w);
effects->addRepaintFull();
} else if (info->closed && info->timeLine->currentValue() == 0.0) {
info->closed = false;
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if (info->deleted) {
windows.remove(w);
w->unrefWindow();
}
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effects->addRepaintFull();
}
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if (info->added || info->closed)
w->addRepaintFull();
}
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effects->postPaintWindow(w);
}
void GlideEffect::slotWindowAdded(EffectWindow* w)
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{
if (!isGlideWindow(w))
return;
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w->setData(IsGlideWindow, true);
const void *addGrab = w->data(WindowAddedGrabRole).value<void*>();
if (addGrab && addGrab != this)
return;
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w->setData(WindowAddedGrabRole, QVariant::fromValue(static_cast<void*>(this)));
InfoHash::iterator it = windows.find(w);
WindowInfo *info = (it == windows.end()) ? &windows[w] : &it.value();
info->added = true;
info->closed = false;
info->deleted = false;
delete info->timeLine;
info->timeLine = new QTimeLine(duration);
info->timeLine->setCurveShape(QTimeLine::EaseOutCurve);
w->addRepaintFull();
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}
void GlideEffect::slotWindowClosed(EffectWindow* w)
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{
if (!isGlideWindow(w))
return;
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const void *closeGrab = w->data(WindowClosedGrabRole).value<void*>();
if (closeGrab && closeGrab != this)
return;
w->refWindow();
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w->setData(WindowClosedGrabRole, QVariant::fromValue(static_cast<void*>(this)));
InfoHash::iterator it = windows.find(w);
WindowInfo *info = (it == windows.end()) ? &windows[w] : &it.value();
info->added = false;
info->closed = true;
info->deleted = true;
delete info->timeLine;
info->timeLine = new QTimeLine(duration);
info->timeLine->setCurveShape(QTimeLine::EaseInCurve);
info->timeLine->setCurrentTime(info->timeLine->duration());
w->addRepaintFull();
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}
void GlideEffect::slotWindowDeleted(EffectWindow* w)
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{
windows.remove(w);
}
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bool GlideEffect::isGlideWindow(EffectWindow* w)
{
if (effects->activeFullScreenEffect())
return false;
if (!w->isVisible())
return false;
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if (w->data(IsGlideWindow).toBool())
return true;
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if (w->hasDecoration())
return true;
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if (!w->isManaged() || w->isMenu() || w->isNotification() || w->isDesktop() ||
w->isDock() || w->isSplash() || w->isToolbar())
return false;
return true;
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}
bool GlideEffect::isActive() const
{
return !windows.isEmpty();
}
void GlideEffect::cancelWindowGrab(EffectWindow *w, int grabRole)
{
if (grabRole != WindowAddedGrabRole && grabRole != WindowClosedGrabRole) {
return;
}
if (!w->data(IsGlideWindow).toBool()) {
return;
}
if (w->data(grabRole).value<void*>() != this) {
windows.remove(w);
w->setData(IsGlideWindow, false);
}
}
GlideEffect::WindowInfo::WindowInfo()
: deleted(false)
, added(false)
, closed(false)
, timeLine(0)
{
}
GlideEffect::WindowInfo::~WindowInfo()
{
delete timeLine;
}
} // namespace