kwin/effects/cube/cubeslide.cpp
Martin Gräßlin c3476f0345 Add a new option to cube animation to trigger rotating the cube while moving a window towards the screen edge.
The cube starts to rotate before the desktop switches due to active desktop border change. This gives the impression that you drag the cube by moving the window. Of course option is only useful when switching desktop on screen edge is enabled and so this feature is disabled by default.

svn path=/trunk/KDE/kdebase/workspace/; revision=1072640
2010-01-10 15:51:02 +00:00

694 lines
25 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2009 Martin Gräßlin <kde@martin-graesslin.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 "cubeslide.h"
#include <kwinconfig.h>
#include <kconfiggroup.h>
#include <math.h>
#include <GL/gl.h>
namespace KWin
{
KWIN_EFFECT( cubeslide, CubeSlideEffect )
KWIN_EFFECT_SUPPORTED( cubeslide, CubeSlideEffect::supported() )
CubeSlideEffect::CubeSlideEffect()
: windowMoving( false )
, desktopChangedWhileMoving( false )
, progressRestriction( 0.0f )
{
reconfigure( ReconfigureAll );
}
CubeSlideEffect::~CubeSlideEffect()
{
}
bool CubeSlideEffect::supported()
{
return effects->compositingType() == OpenGLCompositing;
}
void CubeSlideEffect::reconfigure( ReconfigureFlags )
{
KConfigGroup conf = effects->effectConfig( "CubeSlide" );
rotationDuration = animationTime( conf, "RotationDuration", 500 );
timeLine.setCurveShape( TimeLine::EaseInOutCurve );
timeLine.setDuration( rotationDuration );
dontSlidePanels = conf.readEntry( "DontSlidePanels", true );
dontSlideStickyWindows = conf.readEntry( "DontSlideStickyWindows", false );
usePagerLayout = conf.readEntry( "UsePagerLayout", true );
useWindowMoving = conf.readEntry( "UseWindowMoving", false );
}
void CubeSlideEffect::prePaintScreen( ScreenPrePaintData& data, int time)
{
if( !slideRotations.empty() )
{
data.mask |= PAINT_SCREEN_TRANSFORMED | Effect::PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS | PAINT_SCREEN_BACKGROUND_FIRST;
timeLine.addTime( time );
if( windowMoving && timeLine.progress() > progressRestriction )
timeLine.setProgress( progressRestriction );
if( dontSlidePanels )
panels.clear();
stickyWindows.clear();
}
effects->prePaintScreen( data, time );
}
void CubeSlideEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data)
{
if( !slideRotations.empty() )
{
glPushAttrib( GL_CURRENT_BIT | GL_ENABLE_BIT );
glEnable( GL_CULL_FACE );
glCullFace( GL_BACK );
glPushMatrix();
paintSlideCube( mask, region, data );
glPopMatrix();
glCullFace( GL_FRONT );
glPushMatrix();
paintSlideCube( mask, region, data );
glPopMatrix();
glDisable( GL_CULL_FACE );
glPopAttrib();
if( dontSlidePanels )
{
foreach( EffectWindow* w, panels )
{
WindowPaintData wData( w );
effects->paintWindow( w, 0, QRegion( w->x(), w->y(), w->width(), w->height() ), wData );
}
}
foreach( EffectWindow* w, stickyWindows )
{
WindowPaintData wData( w );
effects->paintWindow( w, 0, QRegion( w->x(), w->y(), w->width(), w->height() ), wData );
}
}
else
effects->paintScreen( mask, region, data );
}
void CubeSlideEffect::paintSlideCube(int mask, QRegion region, ScreenPaintData& data)
{
// slide cube only paints to desktops at a time
// first the horizontal rotations followed by vertical rotations
QRect rect = effects->clientArea( FullArea, effects->activeScreen(), effects->currentDesktop() );
float point = rect.width()/2*tan(45.0f*M_PI/180.0f);
cube_painting = true;
painting_desktop = front_desktop;
ScreenPaintData firstFaceData = data;
ScreenPaintData secondFaceData = data;
RotationData firstFaceRot = RotationData();
RotationData secondFaceRot = RotationData();
RotationDirection direction = slideRotations.head();
int secondDesktop;
switch ( direction )
{
case Left:
firstFaceRot.axis = RotationData::YAxis;
secondFaceRot.axis = RotationData::YAxis;
if( usePagerLayout )
secondDesktop = effects->desktopToLeft( front_desktop, true );
else
{
secondDesktop = front_desktop - 1;
if( secondDesktop == 0 )
secondDesktop = effects->numberOfDesktops();
}
firstFaceRot.angle = 90.0f*timeLine.value();
secondFaceRot.angle = -90.0f*(1.0f - timeLine.value());
break;
case Right:
firstFaceRot.axis = RotationData::YAxis;
secondFaceRot.axis = RotationData::YAxis;
if( usePagerLayout )
secondDesktop = effects->desktopToRight( front_desktop, true );
else
{
secondDesktop = front_desktop + 1;
if( secondDesktop > effects->numberOfDesktops() )
secondDesktop = 1;
}
firstFaceRot.angle = -90.0f*timeLine.value();
secondFaceRot.angle = 90.0f*(1.0f - timeLine.value());
break;
case Upwards:
firstFaceRot.axis = RotationData::XAxis;
secondFaceRot.axis = RotationData::XAxis;
secondDesktop = effects->desktopAbove( front_desktop, true);
firstFaceRot.angle = -90.0f*timeLine.value();
secondFaceRot.angle = 90.0f*(1.0f - timeLine.value());
point = rect.height()/2*tan(45.0f*M_PI/180.0f);
break;
case Downwards:
firstFaceRot.axis = RotationData::XAxis;
secondFaceRot.axis = RotationData::XAxis;
secondDesktop = effects->desktopBelow( front_desktop, true );
firstFaceRot.angle = 90.0f*timeLine.value();
secondFaceRot.angle = -90.0f*(1.0f - timeLine.value());
point = rect.height()/2*tan(45.0f*M_PI/180.0f);
break;
default:
// totally impossible
return;
}
// front desktop
firstFaceRot.xRotationPoint = rect.width()/2;
firstFaceRot.yRotationPoint = rect.height()/2;
firstFaceRot.zRotationPoint = -point;
firstFaceData.rotation = &firstFaceRot;
other_desktop = secondDesktop;
firstDesktop = true;
effects->paintScreen( mask, region, firstFaceData );
// second desktop
other_desktop = painting_desktop;
painting_desktop = secondDesktop;
firstDesktop = false;
secondFaceRot.xRotationPoint = rect.width()/2;
secondFaceRot.yRotationPoint = rect.height()/2;
secondFaceRot.zRotationPoint = -point;
secondFaceData.rotation = &secondFaceRot;
effects->paintScreen( mask, region, secondFaceData );
cube_painting = false;
painting_desktop = effects->currentDesktop();
}
void CubeSlideEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time)
{
if( !slideRotations.empty() && cube_painting )
{
QRect rect = effects->clientArea( FullArea, effects->activeScreen(), painting_desktop );
if( dontSlidePanels && w->isDock())
{
panels.insert( w );
}
if( !w->isManaged() )
{
stickyWindows.insert( w );
}
else if( dontSlideStickyWindows && !w->isDock() &&
!w->isDesktop() && w->isOnAllDesktops())
{
stickyWindows.insert( w );
}
if( w->isOnDesktop( painting_desktop ) )
{
if( w->x() < rect.x() )
{
data.quads = data.quads.splitAtX( -w->x() );
}
if( w->x() + w->width() > rect.x() + rect.width() )
{
data.quads = data.quads.splitAtX( rect.width() - w->x() );
}
if( w->y() < rect.y() )
{
data.quads = data.quads.splitAtY( -w->y() );
}
if( w->y() + w->height() > rect.y() + rect.height() )
{
data.quads = data.quads.splitAtY( rect.height() - w->y() );
}
w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
}
else if( w->isOnDesktop( other_desktop ) )
{
RotationDirection direction = slideRotations.head();
bool enable = false;
if( w->x() < rect.x() &&
( direction == Left || direction == Right ) )
{
data.quads = data.quads.splitAtX( -w->x() );
enable = true;
}
if( w->x() + w->width() > rect.x() + rect.width() &&
( direction == Left || direction == Right ) )
{
data.quads = data.quads.splitAtX( rect.width() - w->x() );
enable = true;
}
if( w->y() < rect.y() &&
( direction == Upwards || direction == Downwards ) )
{
data.quads = data.quads.splitAtY( -w->y() );
enable = true;
}
if( w->y() + w->height() > rect.y() + rect.height() &&
( direction == Upwards || direction == Downwards ) )
{
data.quads = data.quads.splitAtY( rect.height() - w->y() );
enable = true;
}
if( enable )
{
data.setTransformed();
data.setTranslucent();
w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
}
else
w->disablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
}
else
w->disablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
}
effects->prePaintWindow( w, data, time );
}
void CubeSlideEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
{
if( !slideRotations.empty() && cube_painting )
{
if( dontSlidePanels && w->isDock() )
return;
if( stickyWindows.contains( w ) )
return;
// filter out quads overlapping the edges
QRect rect = effects->clientArea( FullArea, effects->activeScreen(), painting_desktop );
if( w->isOnDesktop( painting_desktop ) )
{
if( w->x() < rect.x() )
{
WindowQuadList new_quads;
foreach( const WindowQuad &quad, data.quads )
{
if( quad.right() > -w->x() )
{
new_quads.append( quad );
}
}
data.quads = new_quads;
}
if( w->x() + w->width() > rect.x() + rect.width() )
{
WindowQuadList new_quads;
foreach( const WindowQuad &quad, data.quads )
{
if( quad.right() <= rect.width() - w->x() )
{
new_quads.append( quad );
}
}
data.quads = new_quads;
}
if( w->y() < rect.y() )
{
WindowQuadList new_quads;
foreach( const WindowQuad &quad, data.quads )
{
if( quad.bottom() > -w->y() )
{
new_quads.append( quad );
}
}
data.quads = new_quads;
}
if( w->y() + w->height() > rect.y() + rect.height() )
{
WindowQuadList new_quads;
foreach( const WindowQuad &quad, data.quads )
{
if( quad.bottom() <= rect.height() - w->y() )
{
new_quads.append( quad );
}
}
data.quads = new_quads;
}
}
// paint windows overlapping edges from other desktop
if( w->isOnDesktop( other_desktop ) && ( mask & PAINT_WINDOW_TRANSFORMED ) )
{
RotationDirection direction = slideRotations.head();
if( w->x() < rect.x() &&
( direction == Left || direction == Right ) )
{
WindowQuadList new_quads;
data.xTranslate = rect.width();
foreach( const WindowQuad &quad, data.quads )
{
if( quad.right() <= -w->x() )
{
new_quads.append( quad );
}
}
data.quads = new_quads;
}
if( w->x() + w->width() > rect.x() + rect.width() &&
( direction == Left || direction == Right ) )
{
WindowQuadList new_quads;
data.xTranslate = -rect.width();
foreach( const WindowQuad &quad, data.quads )
{
if( quad.right() > rect.width() - w->x() )
{
new_quads.append( quad );
}
}
data.quads = new_quads;
}
if( w->y() < rect.y() &&
( direction == Upwards || direction == Downwards ) )
{
WindowQuadList new_quads;
data.yTranslate = rect.height();
foreach( const WindowQuad &quad, data.quads )
{
if( quad.bottom() <= -w->y() )
{
new_quads.append( quad );
}
}
data.quads = new_quads;
}
if( w->y() + w->height() > rect.y() + rect.height() &&
( direction == Upwards || direction == Downwards ) )
{
WindowQuadList new_quads;
data.yTranslate = -rect.height();
foreach( const WindowQuad &quad, data.quads )
{
if( quad.bottom() > rect.height() - w->y() )
{
new_quads.append( quad );
}
}
data.quads = new_quads;
}
if( firstDesktop )
data.opacity *= timeLine.value();
else
data.opacity *= ( 1.0 - timeLine.value() );
}
}
effects->paintWindow( w, mask, region, data );
}
void CubeSlideEffect::postPaintScreen()
{
effects->postPaintScreen();
if( !slideRotations.empty() )
{
if( timeLine.value() == 1.0 )
{
RotationDirection direction = slideRotations.dequeue();
switch (direction)
{
case Left:
if( usePagerLayout )
front_desktop = effects->desktopToLeft( front_desktop, true );
else
{
front_desktop--;
if( front_desktop == 0 )
front_desktop = effects->numberOfDesktops();
}
break;
case Right:
if( usePagerLayout )
front_desktop = effects->desktopToRight( front_desktop, true );
else
{
front_desktop++;
if( front_desktop > effects->numberOfDesktops() )
front_desktop = 1;
}
break;
case Upwards:
front_desktop = effects->desktopAbove( front_desktop, true );
break;
case Downwards:
front_desktop = effects->desktopBelow( front_desktop, true );
break;
}
timeLine.setProgress( 0.0 );
if( slideRotations.count() == 1 )
timeLine.setCurveShape( TimeLine::EaseOutCurve );
else
timeLine.setCurveShape( TimeLine::LinearCurve );
if( slideRotations.empty() )
{
effects->setActiveFullScreenEffect( 0 );
}
}
effects->addRepaintFull();
}
}
void CubeSlideEffect::desktopChanged( int old )
{
if( effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this )
return;
if( old > effects->numberOfDesktops() )
{
// number of desktops has been reduced -> no animation
return;
}
if( windowMoving )
{
desktopChangedWhileMoving = true;
progressRestriction = 1.0 - progressRestriction;
effects->addRepaintFull();
return;
}
bool activate = true;
if( !slideRotations.empty() )
{
// last slide still in progress
activate = false;
RotationDirection direction = slideRotations.dequeue();
slideRotations.clear();
slideRotations.enqueue( direction );
switch (direction)
{
case Left:
if( usePagerLayout )
old = effects->desktopToLeft( front_desktop, true );
else
{
old = front_desktop - 1;
if( old == 0 )
old = effects->numberOfDesktops();
}
break;
case Right:
if( usePagerLayout )
old = effects->desktopToRight( front_desktop, true );
else
{
old = front_desktop + 1;
if( old > effects->numberOfDesktops() )
old = 1;
}
break;
case Upwards:
old = effects->desktopAbove( front_desktop, true );
break;
case Downwards:
old = effects->desktopBelow( front_desktop, true );
break;
}
}
if( usePagerLayout )
{
// calculate distance in respect to pager
QPoint diff = effects->desktopGridCoords( effects->currentDesktop() ) - effects->desktopGridCoords( old );
if( qAbs( diff.x() ) > effects->desktopGridWidth()/2 )
{
int sign = -1 * (diff.x()/qAbs( diff.x() ));
diff.setX( sign * ( effects->desktopGridWidth() - qAbs( diff.x() )));
}
if( diff.x() > 0 )
{
for( int i=0; i<diff.x(); i++ )
{
slideRotations.enqueue( Right );
}
}
else if( diff.x() < 0 )
{
diff.setX( -diff.x() );
for( int i=0; i<diff.x(); i++ )
{
slideRotations.enqueue( Left );
}
}
if( qAbs( diff.y() ) > effects->desktopGridHeight()/2 )
{
int sign = -1 * (diff.y()/qAbs( diff.y() ));
diff.setY( sign * ( effects->desktopGridHeight() - qAbs( diff.y() )));
}
if( diff.y() > 0 )
{
for( int i=0; i<diff.y(); i++ )
{
slideRotations.enqueue( Downwards );
}
}
if( diff.y() < 0 )
{
diff.setY( -diff.y() );
for( int i=0; i<diff.y(); i++ )
{
slideRotations.enqueue( Upwards );
}
}
}
else
{
// ignore pager layout
int left = old - effects->currentDesktop();
if( left < 0 )
left = effects->numberOfDesktops() + left;
int right = effects->currentDesktop() - old;
if( right < 0 )
right = effects->numberOfDesktops() + right;
if( left < right )
{
for( int i=0; i<left; i++ )
{
slideRotations.enqueue( Left );
}
}
else
{
for( int i=0; i<right; i++ )
{
slideRotations.enqueue( Right );
}
}
}
timeLine.setDuration( (float)rotationDuration / (float)slideRotations.count() );
if( activate )
{
if( slideRotations.count() == 1 )
timeLine.setCurveShape( TimeLine::EaseInOutCurve );
else
timeLine.setCurveShape( TimeLine::EaseInCurve );
effects->setActiveFullScreenEffect( this );
timeLine.setProgress( 0.0 );
front_desktop = old;
effects->addRepaintFull();
}
}
void CubeSlideEffect::windowUserMovedResized( EffectWindow* c, bool first, bool last )
{
if( !useWindowMoving )
return;
if( (first && last) || c->isUserResize() )
return;
if( last )
{
if( !desktopChangedWhileMoving )
{
if( slideRotations.isEmpty() )
return;
const RotationDirection direction = slideRotations.dequeue();
switch( direction )
{
case Left:
slideRotations.enqueue( Right );
break;
case Right:
slideRotations.enqueue( Left );
break;
case Upwards:
slideRotations.enqueue( Downwards );
break;
case Downwards:
slideRotations.enqueue( Upwards );
break;
default:
break; // impossible
}
timeLine.setProgress( 1.0 - timeLine.progress() );
}
desktopChangedWhileMoving = false;
windowMoving = false;
effects->addRepaintFull();
return;
}
const QPoint cursor = effects->cursorPos();
const int horizontal = displayWidth()*0.1;
const int vertical = displayHeight()*0.1;
const QRect leftRect( 0, displayHeight()*0.1, horizontal, displayHeight()*0.8 );
const QRect rightRect( displayWidth() - horizontal, displayHeight()*0.1, horizontal, displayHeight()*0.8 );
const QRect topRect( horizontal, 0, displayWidth()*0.8, vertical );
const QRect bottomRect( horizontal, displayHeight() - vertical, displayWidth() - horizontal*2, vertical );
if( leftRect.contains( cursor ) )
{
if( effects->desktopToLeft(effects->currentDesktop()) != effects->currentDesktop() )
windowMovingChanged( 0.3 * (float)(horizontal - cursor.x())/(float)horizontal, Left );
}
else if( rightRect.contains( cursor ) )
{
if( effects->desktopToRight(effects->currentDesktop()) != effects->currentDesktop() )
windowMovingChanged( 0.3 * (float)(cursor.x() - displayWidth() + horizontal)/(float)horizontal, Right );
}
else if( topRect.contains( cursor ) )
{
if( effects->desktopAbove(effects->currentDesktop()) != effects->currentDesktop() )
windowMovingChanged( 0.3 * (float)(vertical - cursor.y())/(float)vertical, Upwards);
}
else if( bottomRect.contains( cursor ) )
{
if( effects->desktopBelow(effects->currentDesktop()) != effects->currentDesktop() )
windowMovingChanged( 0.3 * (float)(cursor.y() - displayHeight() + vertical)/(float)vertical, Downwards );
}
else
{
// not in one of the areas
windowMoving = false;
desktopChangedWhileMoving = false;
timeLine.setProgress( 0.0 );
if( !slideRotations.isEmpty() )
slideRotations.clear();
effects->setActiveFullScreenEffect( 0 );
effects->addRepaintFull();
}
}
void CubeSlideEffect::windowMovingChanged( float progress, RotationDirection direction )
{
if( desktopChangedWhileMoving )
progressRestriction = 1.0 - progress;
else
progressRestriction = progress;
front_desktop = effects->currentDesktop();
if( slideRotations.isEmpty() )
{
slideRotations.enqueue( direction );
timeLine.setCurveShape( TimeLine::EaseInOutCurve );
windowMoving = true;
effects->setActiveFullScreenEffect( this );
}
effects->addRepaintFull();
}
} // namespace