kwin/effects/desktopgrid.cpp
Luboš Luňák 1d2c54edcc Support for proper effect reconfiguration instead of reloading them.
Fixes e.g. the global animation combo not taking effect.


svn path=/trunk/KDE/kdebase/workspace/; revision=866903
2008-10-02 09:27:32 +00:00

675 lines
25 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2007 Lubos Lunak <l.lunak@kde.org>
Copyright (C) 2008 Lucas Murray <lmurray@undefinedfire.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 "desktopgrid.h"
#include <math.h>
#include <kaction.h>
#include <kactioncollection.h>
#include <kdebug.h>
#include <klocale.h>
#include <kconfiggroup.h>
#include <netwm_def.h>
#include <QEvent>
#include <QMouseEvent>
namespace KWin
{
KWIN_EFFECT( desktopgrid, DesktopGridEffect )
DesktopGridEffect::DesktopGridEffect()
: borderActivate( ElectricNone )
, activated( false )
, timeline()
, keyboardGrab( false )
, wasWindowMove( false )
, windowMove( NULL )
, windowMoveDiff()
, gridSize()
, orientation( Qt::Horizontal )
, activeCell( 1, 1 )
, scale()
, unscaledBorder()
, scaledSize()
, scaledOffset()
{
// Load shortcuts
KActionCollection* actionCollection = new KActionCollection( this );
KAction* a = (KAction*) actionCollection->addAction( "ShowDesktopGrid" );
a->setText( i18n( "Show Desktop Grid" ));
a->setGlobalShortcut( KShortcut( Qt::CTRL + Qt::Key_F8 ));
connect( a, SIGNAL( triggered( bool )), this, SLOT( toggle() ));
// Load all other configuration details
reconfigure( ReconfigureAll );
}
DesktopGridEffect::~DesktopGridEffect()
{
effects->unreserveElectricBorder( borderActivate );
}
void DesktopGridEffect::reconfigure( ReconfigureFlags )
{
KConfigGroup conf = effects->effectConfig( "DesktopGrid" );
effects->unreserveElectricBorder( borderActivate );
borderActivate = ElectricBorder( conf.readEntry( "BorderActivate", int( ElectricNone )));
effects->reserveElectricBorder( borderActivate );
zoomDuration = animationTime( conf, "ZoomDuration", 300 );
timeline.setCurveShape( TimeLine::EaseInOutCurve );
timeline.setDuration( zoomDuration );
border = conf.readEntry( "BorderWidth", 10 );
desktopNameAlignment = Qt::Alignment( conf.readEntry( "DesktopNameAlignment", 0 ));
layoutMode = conf.readEntry( "LayoutMode", int( LayoutPager ));
customLayoutRows = conf.readEntry( "CustomLayoutRows", 2 );
}
//-----------------------------------------------------------------------------
// Screen painting
void DesktopGridEffect::prePaintScreen( ScreenPrePaintData& data, int time )
{
if( timeline.value() != 0 || activated )
{
if( activated )
timeline.addTime(time);
else
timeline.removeTime(time);
for( int i = 0; i < effects->numberOfDesktops(); i++ )
{
if( i == highlightedDesktop - 1 )
hoverTimeline[i].addTime(time);
else
hoverTimeline[i].removeTime(time);
}
// PAINT_SCREEN_BACKGROUND_FIRST is needed because screen will be actually painted more than once,
// so with normal screen painting second screen paint would erase parts of the first paint
if( timeline.value() != 0 )
data.mask |= PAINT_SCREEN_TRANSFORMED | PAINT_SCREEN_BACKGROUND_FIRST;
if( !activated && timeline.value() == 0 )
finish();
}
effects->prePaintScreen( data, time );
}
void DesktopGridEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
{
if( timeline.value() == 0 )
{
effects->paintScreen( mask, region, data );
return;
}
for( int desktop = 1; desktop <= effects->numberOfDesktops(); desktop++ )
{
ScreenPaintData d = data;
paintingDesktop = desktop;
effects->paintScreen( mask, region, d );
}
if( desktopNameAlignment )
{
double progress = timeline.value();
QColor textColor( 255, 255, 255, 255 * progress );
QColor bgColor( 0, 0, 0, 178 * progress ); // 70%
QFont f;
f.setBold( true );
f.setPointSize( 12 );
for( int screen = 0; screen < effects->numScreens(); screen++ )
{
QRect screenGeom = effects->clientArea( ScreenArea, screen, 0 );
PaintClipper pc( screenGeom ); // TODO: Doesn't work in XRender for some reason?
for( int desktop = 1; desktop <= effects->numberOfDesktops(); desktop++ )
{
QPointF posTL( scalePos( screenGeom.topLeft(), desktop, screen ));
QPointF posBR( scalePos( screenGeom.bottomRight(), desktop, screen ));
QRect textArea( posTL.x(), posTL.y(), posBR.x() - posTL.x(), posBR.y() - posTL.y() );
textArea.adjust( textArea.width() / 10, textArea.height() / 10,
-textArea.width() / 10, -textArea.height() / 10 );
effects->paintTextWithBackground( effects->desktopName( desktop ),
textArea, textColor, bgColor, f, desktopNameAlignment );
}
}
}
}
void DesktopGridEffect::postPaintScreen()
{
if( activated ? timeline.value() != 1 : timeline.value() != 0 )
effects->addRepaintFull(); // Repaint during zoom
if( activated )
{
for( int i = 0; i < effects->numberOfDesktops(); i++ )
{
if( hoverTimeline[i].value() != 0.0 && hoverTimeline[i].value() != 1.0 )
{ // Repaint during soft highlighting
effects->addRepaintFull();
break;
}
}
}
effects->postPaintScreen();
}
//-----------------------------------------------------------------------------
// Window painting
void DesktopGridEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
{
if( timeline.value() != 0 )
{
if( w->isOnDesktop( paintingDesktop ))
{
w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
data.mask |= PAINT_WINDOW_TRANSFORMED;
// Split windows at screen edges
for( int screen = 0; screen < effects->numScreens(); screen++ )
{
QRect screenGeom = effects->clientArea( ScreenArea, screen, 0 );
if( w->x() < screenGeom.x() )
data.quads = data.quads.splitAtX( screenGeom.x() - w->x() );
if( w->x() + w->width() > screenGeom.x() + screenGeom.width() )
data.quads = data.quads.splitAtX( screenGeom.x() + screenGeom.width() - w->x() );
if( w->y() < screenGeom.y() )
data.quads = data.quads.splitAtY( screenGeom.y() - w->y() );
if( w->y() + w->height() > screenGeom.y() + screenGeom.height() )
data.quads = data.quads.splitAtY( screenGeom.y() + screenGeom.height() - w->y() );
}
}
else
w->disablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
}
effects->prePaintWindow( w, data, time );
}
void DesktopGridEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
{
if( timeline.value() != 0 )
{
double xScale = data.xScale;
double yScale = data.yScale;
data.brightness *= 1.0 - ( 0.3 * ( 1.0 - hoverTimeline[paintingDesktop - 1].value() ));
for( int screen = 0; screen < effects->numScreens(); screen++ )
{
QRect screenGeom = effects->clientArea( ScreenArea, screen, 0 );
// Display all quads on the same screen on the same pass
WindowQuadList screenQuads;
foreach( WindowQuad quad, data.quads )
{
QRect quadRect(
w->x() + quad.left(), w->y() + quad.top(),
quad.right() - quad.left(), quad.bottom() - quad.top()
);
if( quadRect.intersects( screenGeom ))
screenQuads.append( quad );
}
if( screenQuads.isEmpty() )
continue; // Nothing is being displayed, don't bother
WindowPaintData d = data;
d.quads = screenQuads;
QPointF newPos = scalePos( QPoint( w->x(), w->y() ), paintingDesktop, screen);
double progress = timeline.value();
d.xScale = interpolate( 1, xScale * scale[screen], progress);
d.yScale = interpolate( 1, yScale * scale[screen], progress);
d.xTranslate += qRound( newPos.x() - w->x() );
d.yTranslate += qRound( newPos.y() - w->y() );
if( effects->compositingType() == XRenderCompositing )
{ // More exact clipping as XRender displays the entire window instead of just the quad
QPointF screenPosF = scalePos( screenGeom.topLeft(), paintingDesktop ).toPoint();
QPoint screenPos(
qRound( screenPosF.x() ),
qRound( screenPosF.y() )
);
QSize screenSize(
qRound( interpolate( screenGeom.width(), scaledSize[screen].width(), progress )),
qRound( interpolate( screenGeom.height(), scaledSize[screen].height(), progress ))
);
PaintClipper pc( effects->clientArea( ScreenArea, screen, 0 ) & QRect( screenPos, screenSize ));
effects->paintWindow( w, mask, region, d );
}
else
{
PaintClipper pc( effects->clientArea( ScreenArea, screen, 0 ));
effects->paintWindow( w, mask, region, d );
}
}
}
else
effects->paintWindow( w, mask, region, data );
}
//-----------------------------------------------------------------------------
// User interaction
void DesktopGridEffect::windowClosed( EffectWindow* w )
{
if( w == windowMove )
{
effects->setElevatedWindow( windowMove, false );
windowMove = NULL;
}
}
void DesktopGridEffect::windowInputMouseEvent( Window, QEvent* e )
{
if(( e->type() != QEvent::MouseMove
&& e->type() != QEvent::MouseButtonPress
&& e->type() != QEvent::MouseButtonRelease )
|| timeline.value() != 1 ) // Block user input during animations
return;
QMouseEvent* me = static_cast< QMouseEvent* >( e );
if( e->type() == QEvent::MouseMove )
{
int d = posToDesktop( me->pos());
if( windowMove != NULL )
{ // Handle window moving
if( !wasWindowMove ) // Activate on move
effects->activateWindow( windowMove );
wasWindowMove = true;
effects->moveWindow( windowMove, unscalePos( me->pos(), NULL ) + windowMoveDiff );
// TODO: Window snap
if( d != highlightedDesktop && !windowMove->isOnAllDesktops() )
effects->windowToDesktop( windowMove, d ); // Not true all desktop move
}
if( d != highlightedDesktop ) // Highlight desktop
setHighlightedDesktop( d );
}
if( e->type() == QEvent::MouseButtonPress )
{
if( me->buttons() == Qt::LeftButton )
{
QRect rect;
EffectWindow* w = windowAt( me->pos());
if( w != NULL && w->isMovable())
{ // Prepare it for moving
windowMoveDiff = w->pos() - unscalePos( me->pos(), NULL );
windowMove = w;
}
}
else if(( me->buttons() == Qt::MidButton || me->buttons() == Qt::RightButton ) && windowMove == NULL )
{
EffectWindow* w = windowAt( me->pos());
if( w != NULL )
{
if( w->isOnAllDesktops())
effects->windowToDesktop( w, posToDesktop( me->pos()));
else
effects->windowToDesktop( w, NET::OnAllDesktops );
effects->addRepaintFull();
}
}
}
if( e->type() == QEvent::MouseButtonRelease && me->button() == Qt::LeftButton )
{
if( wasWindowMove )
effects->activateWindow( windowMove ); // Just in case it was deactivated
else
{
setCurrentDesktop( highlightedDesktop );
setActive( false );
}
windowMove = NULL;
wasWindowMove = false;
}
}
void DesktopGridEffect::grabbedKeyboardEvent( QKeyEvent* e )
{
if( e->type() == QEvent::KeyPress )
{
int desktop = -1;
// switch by F<number> or just <number>
if( e->key() >= Qt::Key_F1 && e->key() <= Qt::Key_F35 )
desktop = e->key() - Qt::Key_F1 + 1;
else if( e->key() >= Qt::Key_0 && e->key() <= Qt::Key_9 )
desktop = e->key() == Qt::Key_0 ? 10 : e->key() - Qt::Key_0;
if( desktop != -1 )
{
if( desktop <= effects->numberOfDesktops())
{
setHighlightedDesktop( desktop );
setCurrentDesktop( desktop );
setActive( false );
}
return;
}
switch( e->key())
{ // Wrap only on autorepeat
case Qt::Key_Left:
setHighlightedDesktop( effects->desktopToLeft( highlightedDesktop, !e->isAutoRepeat()));
break;
case Qt::Key_Right:
setHighlightedDesktop( effects->desktopToRight( highlightedDesktop, !e->isAutoRepeat()));
break;
case Qt::Key_Up:
setHighlightedDesktop( effects->desktopUp( highlightedDesktop, !e->isAutoRepeat()));
break;
case Qt::Key_Down:
setHighlightedDesktop( effects->desktopDown( highlightedDesktop, !e->isAutoRepeat()));
break;
case Qt::Key_Escape:
setActive( false );
return;
case Qt::Key_Enter:
case Qt::Key_Return:
case Qt::Key_Space:
setCurrentDesktop( highlightedDesktop );
setActive( false );
return;
default:
break;
}
}
}
bool DesktopGridEffect::borderActivated( ElectricBorder border )
{
if( effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this )
return false;
if( border == borderActivate && !activated )
{
toggle();
return true;
}
return false;
}
//-----------------------------------------------------------------------------
// Helper functions
// Transform a point to its position on the scaled grid
QPointF DesktopGridEffect::scalePos( const QPoint& pos, int desktop, int screen ) const
{
if( screen == -1 )
screen = effects->screenNumber( pos );
QRect screenGeom = effects->clientArea( ScreenArea, screen, 0 );
QPoint desktopCell;
if( orientation == Qt::Horizontal )
{
desktopCell.setX(( desktop - 1 ) % gridSize.width() + 1 );
desktopCell.setY(( desktop - 1 ) / gridSize.width() + 1 );
}
else
{
desktopCell.setX(( desktop - 1 ) / gridSize.height() + 1 );
desktopCell.setY(( desktop - 1 ) % gridSize.height() + 1 );
}
double progress = timeline.value();
QPointF point(
interpolate(
(
( screenGeom.width() + unscaledBorder[screen] ) * ( desktopCell.x() - 1 )
- ( screenGeom.width() + unscaledBorder[screen] ) * ( activeCell.x() - 1 )
) + pos.x(),
(
( scaledSize[screen].width() + border ) * ( desktopCell.x() - 1 )
+ scaledOffset[screen].x()
+ ( pos.x() - screenGeom.x() ) * scale[screen]
),
progress ),
interpolate(
(
( screenGeom.height() + unscaledBorder[screen] ) * ( desktopCell.y() - 1 )
- ( screenGeom.height() + unscaledBorder[screen] ) * ( activeCell.y() - 1 )
) + pos.y(),
(
( scaledSize[screen].height() + border ) * ( desktopCell.y() - 1 )
+ scaledOffset[screen].y()
+ ( pos.y() - screenGeom.y() ) * scale[screen]
),
progress )
);
return point;
}
// Detransform a point to its position on the full grid
// TODO: Doesn't correctly interpolate (Final position is correct though), don't forget to copy to posToDesktop()
QPoint DesktopGridEffect::unscalePos( const QPoint& pos, int* desktop ) const
{
int screen = effects->screenNumber( pos );
QRect screenGeom = effects->clientArea( ScreenArea, screen, 0 );
//double progress = timeline.value();
double scaledX = /*interpolate(
( pos.x() - screenGeom.x() + unscaledBorder[screen] / 2.0 ) / ( screenGeom.width() + unscaledBorder[screen] ) + activeCell.x() - 1,*/
( pos.x() - scaledOffset[screen].x() + double( border ) / 2.0 ) / ( scaledSize[screen].width() + border )/*,
progress )*/;
double scaledY = /*interpolate(
( pos.y() - screenGeom.y() + unscaledBorder[screen] / 2.0 ) / ( screenGeom.height() + unscaledBorder[screen] ) + activeCell.y() - 1,*/
( pos.y() - scaledOffset[screen].y() + double( border ) / 2.0 ) / ( scaledSize[screen].height() + border )/*,
progress )*/;
int gx = qBound( 0, int( scaledX ), gridSize.width() - 1 ); // Zero-based
int gy = qBound( 0, int( scaledY ), gridSize.height() - 1 );
scaledX -= gx;
scaledY -= gy;
if( desktop != NULL )
{
if( orientation == Qt::Horizontal )
*desktop = gy * gridSize.width() + gx + 1;
else
*desktop = gx * gridSize.height() + gy + 1;
}
return QPoint(
qBound(
screenGeom.x(),
qRound(
scaledX * ( screenGeom.width() + unscaledBorder[screen] )
- unscaledBorder[screen] / 2.0
+ screenGeom.x()
),
screenGeom.right()
),
qBound(
screenGeom.y(),
qRound(
scaledY * ( screenGeom.height() + unscaledBorder[screen] )
- unscaledBorder[screen] / 2.0
+ screenGeom.y()
),
screenGeom.bottom()
)
);
}
int DesktopGridEffect::posToDesktop( const QPoint& pos ) const
{ // Copied from unscalePos()
int screen = effects->screenNumber( pos );
QRect screenGeom = effects->clientArea( ScreenArea, screen, 0 );
//double progress = timeline.value();
double scaledX = /*interpolate(
( pos.x() - screenGeom.x() + unscaledBorder[screen] / 2.0 ) / ( screenGeom.width() + unscaledBorder[screen] ) + activeCell.x() - 1,*/
( pos.x() - scaledOffset[screen].x() + double( border ) / 2.0 ) / ( scaledSize[screen].width() + border )/*,
progress )*/;
double scaledY = /*interpolate(
( pos.y() - screenGeom.y() + unscaledBorder[screen] / 2.0 ) / ( screenGeom.height() + unscaledBorder[screen] ) + activeCell.y() - 1,*/
( pos.y() - scaledOffset[screen].y() + double( border ) / 2.0 ) / ( scaledSize[screen].height() + border )/*,
progress )*/;
int gx = qBound( 0, int( scaledX ), gridSize.width() - 1 ); // Zero-based
int gy = qBound( 0, int( scaledY ), gridSize.height() - 1 );
scaledX -= gx;
scaledY -= gy;
if( orientation == Qt::Horizontal )
return gy * gridSize.width() + gx + 1;
return gx * gridSize.height() + gy + 1;
}
EffectWindow* DesktopGridEffect::windowAt( QPoint pos ) const
{
// Get stacking order top first
EffectWindowList windows = effects->stackingOrder();
EffectWindowList::Iterator begin = windows.begin();
EffectWindowList::Iterator end = windows.end();
--end;
while( begin < end )
qSwap( *begin++, *end-- );
int desktop;
pos = unscalePos( pos, &desktop );
foreach( EffectWindow* w, windows )
if( w->isOnDesktop( desktop ) && w->geometry().contains( pos ))
return w;
return NULL;
}
void DesktopGridEffect::setCurrentDesktop( int desktop )
{
if( orientation == Qt::Horizontal )
{
activeCell.setX(( desktop - 1 ) % gridSize.width() + 1 );
activeCell.setY(( desktop - 1 ) / gridSize.width() + 1 );
}
else
{
activeCell.setX(( desktop - 1 ) / gridSize.height() + 1 );
activeCell.setY(( desktop - 1 ) % gridSize.height() + 1 );
}
if( effects->currentDesktop() != desktop )
effects->setCurrentDesktop( desktop );
}
void DesktopGridEffect::setHighlightedDesktop( int d )
{
if( d == highlightedDesktop || d <= 0 || d > effects->numberOfDesktops() )
return;
highlightedDesktop = d;
effects->addRepaintFull();
}
//-----------------------------------------------------------------------------
// Activation
void DesktopGridEffect::toggle()
{
setActive( !activated );
}
void DesktopGridEffect::setActive( bool active )
{
if( effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this )
return; // Only one fullscreen effect at a time thanks
if( effects->numberOfDesktops() < 2 )
return; // No point if there is only one desktop
if( activated == active )
return; // Already in that state
activated = active;
if( activated && timeline.value() == 0 )
setup();
effects->addRepaintFull();
}
void DesktopGridEffect::setup()
{
keyboardGrab = effects->grabKeyboard( this );
input = effects->createInputWindow( this, 0, 0, displayWidth(), displayHeight(),
Qt::PointingHandCursor );
effects->setActiveFullScreenEffect( this );
setHighlightedDesktop( effects->currentDesktop() );
// Soft highlighting
hoverTimeline.clear();
for( int i = 0; i < effects->numberOfDesktops(); i++ )
{
TimeLine newTimeline( animationTime( 250 ));
newTimeline.setCurveShape( TimeLine::EaseInOutCurve );
hoverTimeline.append( newTimeline );
}
hoverTimeline[effects->currentDesktop() - 1].setProgress( 1.0 );
// We need these variables for every paint so lets cache them
int x, y;
int numDesktops = effects->numberOfDesktops();
switch( layoutMode )
{
default:
case LayoutPager:
effects->calcDesktopLayout( &gridSize.rwidth(), &gridSize.rheight(), &orientation );
break;
case LayoutAutomatic:
y = sqrt( numDesktops ) + 0.5;
x = float( numDesktops ) / float( y ) + 0.5;
if( x * y < numDesktops )
x++;
orientation = Qt::Horizontal;
gridSize.setWidth( x );
gridSize.setHeight( y );
break;
case LayoutCustom:
effects->calcDesktopLayout( &gridSize.rwidth(), &gridSize.rheight(), &orientation );
gridSize.setWidth( ceil( effects->numberOfDesktops() / double( customLayoutRows )));
gridSize.setHeight( customLayoutRows );
break;
}
setCurrentDesktop( effects->currentDesktop() );
scale.clear();
unscaledBorder.clear();
scaledSize.clear();
scaledOffset.clear();
for( int i = 0; i < effects->numScreens(); i++ )
{
QRect geom = effects->clientArea( ScreenArea, i, 0 );
double sScale;
if( gridSize.width() > gridSize.height() )
sScale = ( geom.width() - border * ( gridSize.width() + 1 )) / double( geom.width() * gridSize.width() );
else
sScale = ( geom.height() - border * ( gridSize.height() + 1 )) / double( geom.height() * gridSize.height() );
double sBorder = border / sScale;
QSizeF size(
double( geom.width() ) * sScale,
double( geom.height() ) * sScale
);
QPointF offset(
geom.x() + ( geom.width() - size.width() * gridSize.width() - border * ( gridSize.width() - 1 )) / 2.0,
geom.y() + ( geom.height() - size.height() * gridSize.height() - border * ( gridSize.height() - 1 )) / 2.0
);
scale.append( sScale );
unscaledBorder.append( sBorder );
scaledSize.append( size );
scaledOffset.append( offset );
}
}
void DesktopGridEffect::finish()
{
if( keyboardGrab )
effects->ungrabKeyboard();
keyboardGrab = false;
effects->destroyInputWindow( input );
effects->setActiveFullScreenEffect( 0 );
}
} // namespace
#include "desktopgrid.moc"