kwin/effects/dialogparent/dialogparent.cpp
2011-01-31 20:07:03 +01:00

108 lines
3.5 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2006 Rivo Laks <rivolaks@hot.ee>
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 "dialogparent.h"
namespace KWin
{
KWIN_EFFECT(dialogparent, DialogParentEffect)
DialogParentEffect::DialogParentEffect()
{
reconfigure(ReconfigureAll);
}
void DialogParentEffect::reconfigure(ReconfigureFlags)
{
// How long does it take for the effect to get it's full strength (in ms)
changeTime = animationTime(200);
}
void DialogParentEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
{
// Check if this window has a modal dialog and change the window's
// effect's strength accordingly
bool hasDialog = w->findModal() != NULL;
if (hasDialog) {
// Increase effect strength of this window
effectStrength[w] = qMin(1.0, effectStrength[w] + time / changeTime);
} else {
effectStrength[w] = qMax(0.0, effectStrength[w] - time / changeTime);
}
// Call the next effect
effects->prePaintWindow(w, data, time);
}
void DialogParentEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
{
double s = effectStrength[w];
if (s > 0.0f) {
// Brightness will be within [1.0; 0.6]
data.brightness *= (1.0 - s * 0.4);
// Saturation within [1.0; 0.4]
data.saturation *= (1.0 - s * 0.6);
}
// Call the next effect.
effects->paintWindow(w, mask, region, data);
}
void DialogParentEffect::postPaintWindow(EffectWindow* w)
{
double s = effectStrength[w];
// If strength is between 0 and 1, the effect is still in progress and the
// window has to be repainted during the next pass
if (s > 0.0 && s < 1.0)
w->addRepaintFull(); // trigger next animation repaint
// Call the next effect.
effects->postPaintWindow(w);
}
void DialogParentEffect::windowActivated(EffectWindow* w)
{
// If this window is a dialog, we need to repaint it's parent window, so
// that the effect could be run for it
// Set the window to be faded (or NULL if no window is active).
if (w && w->isModal()) {
// w is a modal dialog
EffectWindowList mainwindows = w->mainWindows();
foreach (EffectWindow * parent, mainwindows)
parent->addRepaintFull();
}
}
void DialogParentEffect::windowClosed(EffectWindow* w)
{
// If this window is a dialog, we need to repaint it's parent window, so
// that the effect could be run for it
// Set the window to be faded (or NULL if no window is active).
if (w && w->isModal()) {
// w is a modal dialog
EffectWindowList mainwindows = w->mainWindows();
foreach (EffectWindow * parent, mainwindows)
parent->addRepaintFull();
}
}
} // namespace