650 lines
24 KiB
C++
650 lines
24 KiB
C++
/********************************************************************
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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 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 "desktopgrid.h"
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#include <math.h>
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#include <kaction.h>
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#include <kactioncollection.h>
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#include <klocale.h>
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#include <kconfiggroup.h>
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#include <netwm_def.h>
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#include <QEvent>
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#include <QMouseEvent>
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namespace KWin
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{
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KWIN_EFFECT( desktopgrid, DesktopGridEffect )
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DesktopGridEffect::DesktopGridEffect()
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: activated( false )
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, keyboard_grab( false )
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, was_window_move( false )
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, window_move( NULL )
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, slide( false )
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{
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KActionCollection* actionCollection = new KActionCollection( this );
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KAction* a = static_cast< KAction* >( actionCollection->addAction( "ShowDesktopGrid" ));
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a->setText( i18n("Show Desktop Grid" ));
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a->setGlobalShortcut( KShortcut( Qt::CTRL + Qt::Key_F8 ));
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connect( a, SIGNAL( triggered( bool )), this, SLOT( toggle()));
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KConfigGroup conf = effects->effectConfig("DesktopGrid");
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slideEnabled = conf.readEntry( "Slide", true );
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borderActivate = (ElectricBorder)conf.readEntry("BorderActivate", (int)ElectricNone);
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effects->reserveElectricBorder( borderActivate );
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mTimeLine.setCurveShape(TimeLine::EaseInOutCurve);
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}
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DesktopGridEffect::~DesktopGridEffect()
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{
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effects->unreserveElectricBorder( borderActivate );
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}
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void DesktopGridEffect::prePaintScreen( ScreenPrePaintData& data, int time )
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{
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if( slide )
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{
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mTimeLine.addTime(time);
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// PAINT_SCREEN_BACKGROUND_FIRST is needed because screen will be actually painted more than once,
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// so with normal screen painting second screen paint would erase parts of the first paint
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if( mTimeLine.value() != 1 )
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data.mask |= PAINT_SCREEN_TRANSFORMED | PAINT_SCREEN_BACKGROUND_FIRST;
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else
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{
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slide = false;
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mTimeLine.setProgress(0);
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}
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}
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else if( mTimeLine.value() != 0 || activated )
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{
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if( activated )
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mTimeLine.addTime(time);
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else
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mTimeLine.removeTime(time);
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// PAINT_SCREEN_BACKGROUND_FIRST is needed because screen will be actually painted more than once,
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// so with normal screen painting second screen paint would erase parts of the first paint
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if( mTimeLine.value() != 0 )
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data.mask |= PAINT_SCREEN_TRANSFORMED | PAINT_SCREEN_BACKGROUND_FIRST;
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if( !activated && mTimeLine.value() == 0 )
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finish();
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}
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effects->prePaintScreen( data, time );
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}
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void DesktopGridEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
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{
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if( slide )
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{
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if( w->isOnAllDesktops())
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{
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if( slide_painting_sticky )
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data.setTransformed();
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else
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w->disablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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}
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else if( w->isOnDesktop( painting_desktop ))
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w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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else
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w->disablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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}
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else if( mTimeLine.value() != 0 )
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{
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if( w->isOnDesktop( painting_desktop ))
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w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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else
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w->disablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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if( w == window_move )
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{
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data.setTransformed();
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if( w->isOnAllDesktops() && painting_desktop != posToDesktop( window_move_pos - window_move_diff ))
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w->disablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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}
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}
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effects->prePaintWindow( w, data, time );
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}
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void DesktopGridEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
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{
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if( mTimeLine.value() == 0 )
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{
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effects->paintScreen( mask, region, data );
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return;
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}
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if( slide )
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{
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paintSlide( mask, region, data );
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return;
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}
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int desktop_with_move = -1;
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if( window_move != NULL )
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desktop_with_move = window_move->isOnAllDesktops()
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? posToDesktop( window_move_pos - window_move_diff ) : window_move->desktop();
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for( int desktop = 1;
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desktop <= effects->numberOfDesktops();
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++desktop )
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{
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if( desktop != desktop_with_move )
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{
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PaintClipper pc( desktopRect( desktop, true ));
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paintScreenDesktop( desktop, mask, region, data );
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}
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}
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// paint the desktop with the window being moved as the last one, i.e. on top of others
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if( desktop_with_move != -1 )
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{
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QRegion paintreg = desktopRect( desktop_with_move, true ); // paint only the desktop
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paintreg |= windowRect( window_move ); // and wherever the moved window is
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PaintClipper pc( paintreg );
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paintScreenDesktop( desktop_with_move, mask, region, data );
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}
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}
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void DesktopGridEffect::paintScreenDesktop( int desktop, int mask, QRegion region, ScreenPaintData data )
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{
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QRect rect = desktopRect( desktop, true );
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if( region.contains( rect )) // this desktop needs painting
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{
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painting_desktop = desktop;
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ScreenPaintData d = data;
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QRect normal = desktopRect( effects->currentDesktop(), false );
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d.xTranslate += rect.x(); // - normal.x();
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d.yTranslate += rect.y(); // - normal.y();
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d.xScale *= rect.width() / double( normal.width());
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d.yScale *= rect.height() / double( normal.height());
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// TODO mask parts that are not visible?
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effects->paintScreen( mask, region, d );
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}
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}
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void DesktopGridEffect::paintSlide( int mask, QRegion region, const ScreenPaintData& data )
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{
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/*
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Transformations are done by remembering starting position of the change and the progress
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of it, the destination is computed from the current desktop. Positions of desktops
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are done using their topleft corner.
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*/
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QPoint destPos = desktopRect( effects->currentDesktop(), false ).topLeft();
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QPoint diffPos = destPos - slide_start_pos;
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int w = 0;
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int h = 0;
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if( effects->optionRollOverDesktops())
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{
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int x, y;
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Qt::Orientation orientation;
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effects->calcDesktopLayout( &x, &y, &orientation );
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w = x * displayWidth();
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h = y * displayHeight();
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// wrap around if shorter
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if( diffPos.x() > 0 && diffPos.x() > w / 2 )
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diffPos.setX( diffPos.x() - w );
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if( diffPos.x() < 0 && abs( diffPos.x()) > w / 2 )
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diffPos.setX( diffPos.x() + w );
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if( diffPos.y() > 0 && diffPos.y() > h / 2 )
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diffPos.setY( diffPos.y() - h );
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if( diffPos.y() < 0 && abs( diffPos.y()) > h / 2 )
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diffPos.setY( diffPos.y() + h );
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}
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QPoint currentPos = slide_start_pos + mTimeLine.value() * diffPos;
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QSize displaySize( displayWidth(), displayHeight());
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QRegion currentRegion = QRect( currentPos, displaySize );
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if( effects->optionRollOverDesktops())
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{
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currentRegion |= ( currentRegion & QRect( -w, 0, w, h )).translated( w, 0 );
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currentRegion |= ( currentRegion & QRect( 0, -h, w, h )).translated( 0, h );
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currentRegion |= ( currentRegion & QRect( w, 0, w, h )).translated( -w, 0 );
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currentRegion |= ( currentRegion & QRect( 0, h, w, h )).translated( 0, -h );
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}
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bool do_sticky = true;
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for( int desktop = 1;
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desktop <= effects->numberOfDesktops();
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++desktop )
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{
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QRect rect = desktopRect( desktop, false );
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if( currentRegion.contains( rect )) // part of the desktop needs painting
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{
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painting_desktop = desktop;
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slide_painting_sticky = do_sticky;
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slide_painting_diff = rect.topLeft() - currentPos;
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if( effects->optionRollOverDesktops())
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{
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if( slide_painting_diff.x() > displayWidth())
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slide_painting_diff.setX( slide_painting_diff.x() - w );
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if( slide_painting_diff.x() < -displayWidth())
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slide_painting_diff.setX( slide_painting_diff.x() + w );
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if( slide_painting_diff.y() > displayHeight())
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slide_painting_diff.setY( slide_painting_diff.y() - h );
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if( slide_painting_diff.y() < -displayHeight())
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slide_painting_diff.setY( slide_painting_diff.y() + h );
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}
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do_sticky = false; // paint on-all-desktop windows only once
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ScreenPaintData d = data;
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d.xTranslate += slide_painting_diff.x();
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d.yTranslate += slide_painting_diff.y();
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// TODO mask parts that are not visible?
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effects->paintScreen( mask, region, d );
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}
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}
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}
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void DesktopGridEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
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{
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if( slide )
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{ // don't move windows on all desktops (compensate screen transformation)
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if( w->isOnAllDesktops()) // TODO also fix 'Workspace::movingClient'
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{
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data.xTranslate -= slide_painting_diff.x();
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data.yTranslate -= slide_painting_diff.y();
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}
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}
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else if( mTimeLine.value() != 0 )
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{
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if( w == window_move )
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{
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int x, y;
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Qt::Orientation orientation;
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effects->calcDesktopLayout( &x, &y, &orientation );
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QRect desktop = desktopRect( painting_desktop, false );
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data.xTranslate += window_move_pos.x() * x - ( desktop.x() + w->x());
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data.yTranslate += window_move_pos.y() * y - ( desktop.y() + w->y());
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}
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else if( painting_desktop != highlighted_desktop )
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data.brightness *= 0.7;
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}
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effects->paintWindow( w, mask, region, data );
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}
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void DesktopGridEffect::postPaintScreen()
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{
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if( slide )
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effects->addRepaintFull();
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if( activated ? mTimeLine.value() != 1 : mTimeLine.value() != 0 )
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effects->addRepaintFull(); // trigger next animation repaint
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effects->postPaintScreen();
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}
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// Gives a position of the given desktop when all desktops are arranged in a grid
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QRect DesktopGridEffect::desktopRect( int desktop, bool scaled ) const
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{
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int x, y;
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Qt::Orientation orientation;
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effects->calcDesktopLayout( &x, &y, &orientation );
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--desktop; // make it start with 0
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QRect rect;
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if( orientation == Qt::Horizontal )
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rect = QRect(( desktop % x ) * displayWidth(), ( desktop / x ) * displayHeight(),
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displayWidth(), displayHeight());
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else
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rect = QRect(( desktop / y ) * displayWidth(), ( desktop % y ) * displayHeight(),
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displayWidth(), displayHeight());
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if( !scaled )
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return rect;
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QRect current = desktopRect( effects->currentDesktop(), false );
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double progress = mTimeLine.value();
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rect = QRect( qRound( interpolate( rect.x() - current.x(), rect.x() / double( x ), progress )),
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qRound( interpolate( rect.y() - current.y(), rect.y() / double( y ), progress )),
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qRound( interpolate( rect.width(), displayWidth() / double( x ), progress )),
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qRound( interpolate( rect.height(), displayHeight() / double( y ), progress )));
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return rect;
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}
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int DesktopGridEffect::posToDesktop( const QPoint& pos ) const
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{
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for( int desktop = 1; // TODO could be perhaps optimized
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desktop <= effects->numberOfDesktops();
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++desktop )
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{
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if( desktopRect( desktop, true ).contains( pos ))
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return desktop;
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}
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return 0;
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}
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QRect DesktopGridEffect::windowRect( EffectWindow* w ) const
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{
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int x, y;
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Qt::Orientation orientation;
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effects->calcDesktopLayout( &x, &y, &orientation );
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if( w == window_move ) // it's being moved, return moved position
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return QRect( window_move_pos, QSize( w->width() / x, w->height() / y ));
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QRect desktop = desktopRect( w->isOnCurrentDesktop()
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? effects->currentDesktop() : w->desktop(), true );
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return QRect( desktop.x() + w->x() / x, desktop.y() + w->y() / y,
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w->width() / x, w->height() / y );
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}
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EffectWindow* DesktopGridEffect::windowAt( const QPoint& pos, QRect* rect ) const
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{
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if( window_move != NULL && windowRect( window_move ).contains( pos ))
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{
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if( rect != NULL )
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*rect = windowRect( window_move );
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return window_move; // has special position and is on top
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}
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EffectWindowList windows = effects->stackingOrder();
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// qReverse()
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EffectWindowList::Iterator begin = windows.begin();
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EffectWindowList::Iterator end = windows.end();
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--end;
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while( begin < end )
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qSwap( *begin++, *end-- );
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int x, y;
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Qt::Orientation orientation;
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effects->calcDesktopLayout( &x, &y, &orientation );
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foreach( EffectWindow* w, windows )
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{
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// don't use windowRect(), take special care of on-all-desktop windows
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QRect desktop = desktopRect( w->isOnAllDesktops()
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? posToDesktop( pos ) : w->desktop(), true );
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QRect r( desktop.x() + w->x() / x, desktop.y() + w->y() / y,
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w->width() / x, w->height() / y );
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if( r.contains( pos ))
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{
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if( rect != NULL )
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*rect = r;
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return w;
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}
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}
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return NULL;
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}
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void DesktopGridEffect::desktopChanged( int old )
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{
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if( effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this )
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return;
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if( activated )
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setActive( false );
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else
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slideDesktopChanged( old );
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}
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void DesktopGridEffect::slideDesktopChanged( int old )
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{
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if( !slideEnabled )
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return;
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if( slide ) // old slide still in progress
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{
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QPoint diffPos = desktopRect( old, false ).topLeft() - slide_start_pos;
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int w = 0;
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int h = 0;
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if( effects->optionRollOverDesktops())
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{
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int x, y;
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Qt::Orientation orientation;
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effects->calcDesktopLayout( &x, &y, &orientation );
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w = x * displayWidth();
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h = y * displayHeight();
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// wrap around if shorter
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if( diffPos.x() > 0 && diffPos.x() > w / 2 )
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diffPos.setX( diffPos.x() - w );
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if( diffPos.x() < 0 && abs( diffPos.x()) > w / 2 )
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diffPos.setX( diffPos.x() + w );
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if( diffPos.y() > 0 && diffPos.y() > h / 2 )
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diffPos.setY( diffPos.y() - h );
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if( diffPos.y() < 0 && abs( diffPos.y()) > h / 2 )
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diffPos.setY( diffPos.y() + h );
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}
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QPoint currentPos = slide_start_pos + mTimeLine.value() * diffPos;
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QRegion currentRegion = QRect( currentPos, QSize( displayWidth(), displayHeight()));
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if( effects->optionRollOverDesktops())
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{
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currentRegion |= ( currentRegion & QRect( -w, 0, w, h )).translated( w, 0 );
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currentRegion |= ( currentRegion & QRect( 0, -h, w, h )).translated( 0, h );
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currentRegion |= ( currentRegion & QRect( w, 0, w, h )).translated( -w, 0 );
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currentRegion |= ( currentRegion & QRect( 0, h, w, h )).translated( 0, -h );
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}
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QRect rect = desktopRect( effects->currentDesktop(), false );
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if( currentRegion.contains( rect ))
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{ // current position is in new current desktop (e.g. quickly changing back),
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// don't do full progress
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if( abs( currentPos.x() - rect.x()) > abs( currentPos.y() - rect.y()))
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mTimeLine.setProgress(1 - abs( currentPos.x() - rect.x()) / double( displayWidth()));
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else
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mTimeLine.setProgress(1 - abs( currentPos.y() - rect.y()) / double( displayHeight()));
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}
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else // current position is not on current desktop, do full progress
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mTimeLine.setProgress(0);
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diffPos = rect.topLeft() - currentPos;
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if( mTimeLine.value() <= 0 )
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{
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// Compute starting point for this new move (given current and end positions)
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slide_start_pos = rect.topLeft() - diffPos * 1 / ( 1 - mTimeLine.value() );
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}
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else
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{ // at the end, stop
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slide = false;
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mTimeLine.setProgress(0);
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}
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}
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else
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{
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mTimeLine.setProgress(0);
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slide_start_pos = desktopRect( old, false ).topLeft();
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slide = true;
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}
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effects->addRepaintFull();
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}
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void DesktopGridEffect::toggle()
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{
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setActive( !activated );
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}
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void DesktopGridEffect::setActive( bool active )
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{
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if( effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this )
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return;
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if( activated == active )
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return;
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activated = active;
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if( activated && mTimeLine.value() == 0 )
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setup();
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effects->addRepaintFull();
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}
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void DesktopGridEffect::setup()
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{
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keyboard_grab = effects->grabKeyboard( this );
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input = effects->createInputWindow( this, 0, 0, displayWidth(), displayHeight(),
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Qt::PointingHandCursor );
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effects->setActiveFullScreenEffect( this );
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setHighlightedDesktop( effects->currentDesktop());
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}
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void DesktopGridEffect::finish()
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{
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if( keyboard_grab )
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effects->ungrabKeyboard();
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keyboard_grab = false;
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if( window_move != NULL )
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effects->setElevatedWindow( window_move, false );
|
|
window_move = NULL;
|
|
effects->destroyInputWindow( input );
|
|
effects->setActiveFullScreenEffect( 0 );
|
|
effects->addRepaintFull(); // to get rid of highlight
|
|
}
|
|
|
|
void DesktopGridEffect::windowInputMouseEvent( Window, QEvent* e )
|
|
{
|
|
if( e->type() != QEvent::MouseMove
|
|
&& e->type() != QEvent::MouseButtonPress
|
|
&& e->type() != QEvent::MouseButtonRelease )
|
|
return;
|
|
QMouseEvent* me = static_cast< QMouseEvent* >( e );
|
|
if( e->type() == QEvent::MouseMove )
|
|
{
|
|
// highlight desktop under mouse
|
|
int d = posToDesktop( me->pos());
|
|
if( d != highlighted_desktop )
|
|
setHighlightedDesktop( d );
|
|
if( window_move != NULL ) // handle window moving
|
|
{
|
|
was_window_move = true;
|
|
// windowRect() handles window_move specially
|
|
effects->addRepaint( windowRect( window_move ));
|
|
window_move_pos = me->pos() + window_move_diff;
|
|
effects->addRepaint( windowRect( window_move ));
|
|
}
|
|
}
|
|
if( e->type() == QEvent::MouseButtonPress )
|
|
{
|
|
if( me->buttons() == Qt::LeftButton )
|
|
{
|
|
QRect rect;
|
|
EffectWindow* w = windowAt( me->pos(), &rect );
|
|
if( w != NULL && w->isMovable())
|
|
{ // prepare it for moving
|
|
window_move_pos = rect.topLeft();
|
|
window_move_diff = window_move_pos - me->pos();
|
|
window_move = w;
|
|
effects->setElevatedWindow( window_move, true );
|
|
}
|
|
}
|
|
else if(( me->buttons() == Qt::MidButton || me->buttons() == Qt::RightButton ) && window_move == 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->buttons() == 0 )
|
|
{
|
|
if( was_window_move )
|
|
{
|
|
if( window_move != NULL )
|
|
{
|
|
QRect rect = windowRect( window_move );
|
|
int desktop = posToDesktop( rect.center());
|
|
// to desktop's coordinates
|
|
rect.translate( -desktopRect( desktop, true ).topLeft());
|
|
int x, y;
|
|
Qt::Orientation orientation;
|
|
effects->calcDesktopLayout( &x, &y, &orientation );
|
|
effects->moveWindow( window_move, QPoint( rect.x() * x, rect.y() * y ));
|
|
effects->windowToDesktop( window_move, desktop );
|
|
effects->setElevatedWindow( window_move, false );
|
|
window_move = NULL;
|
|
}
|
|
}
|
|
if( !was_window_move && me->button() == Qt::LeftButton )
|
|
{
|
|
effects->setCurrentDesktop( posToDesktop( me->pos()));
|
|
setActive( false );
|
|
}
|
|
was_window_move = false;
|
|
}
|
|
}
|
|
|
|
void DesktopGridEffect::windowClosed( EffectWindow* w )
|
|
{
|
|
if( w == window_move )
|
|
{
|
|
effects->setElevatedWindow( window_move, false );
|
|
window_move = NULL;
|
|
}
|
|
}
|
|
|
|
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 );
|
|
effects->setCurrentDesktop( desktop );
|
|
setActive( false );
|
|
}
|
|
return;
|
|
}
|
|
switch( e->key())
|
|
{ // wrap only on autorepeat
|
|
case Qt::Key_Left:
|
|
setHighlightedDesktop( effects->desktopToLeft( highlighted_desktop,
|
|
!e->isAutoRepeat()));
|
|
break;
|
|
case Qt::Key_Right:
|
|
setHighlightedDesktop( effects->desktopToRight( highlighted_desktop,
|
|
!e->isAutoRepeat()));
|
|
break;
|
|
case Qt::Key_Up:
|
|
setHighlightedDesktop( effects->desktopUp( highlighted_desktop,
|
|
!e->isAutoRepeat()));
|
|
break;
|
|
case Qt::Key_Down:
|
|
setHighlightedDesktop( effects->desktopDown( highlighted_desktop,
|
|
!e->isAutoRepeat()));
|
|
break;
|
|
case Qt::Key_Escape:
|
|
setActive( false );
|
|
return;
|
|
case Qt::Key_Enter:
|
|
case Qt::Key_Return:
|
|
case Qt::Key_Space:
|
|
effects->setCurrentDesktop( highlighted_desktop );
|
|
setActive( false );
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void DesktopGridEffect::setHighlightedDesktop( int d )
|
|
{
|
|
if( d == highlighted_desktop || d <= 0 || d > effects->numberOfDesktops())
|
|
return;
|
|
effects->addRepaint( desktopRect( highlighted_desktop, true ));
|
|
highlighted_desktop = d;
|
|
effects->addRepaint( desktopRect( highlighted_desktop, true ));
|
|
}
|
|
|
|
bool DesktopGridEffect::borderActivated( ElectricBorder border )
|
|
{
|
|
if( effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this )
|
|
return false;
|
|
if( border == borderActivate && !activated )
|
|
{
|
|
toggle();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
#include "desktopgrid.moc"
|