267 lines
10 KiB
C++
267 lines
10 KiB
C++
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/********************************************************************
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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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Copyright (C) 2008 Lucas Murray <admin@undefinedfire.com>
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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 "slide.h"
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#include <math.h>
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namespace KWin
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{
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KWIN_EFFECT( slide, SlideEffect )
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SlideEffect::SlideEffect()
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: slide( false )
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{
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mTimeLine.setCurveShape(TimeLine::EaseInOutCurve);
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}
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void SlideEffect::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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effects->prePaintScreen( data, time );
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}
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void SlideEffect::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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effects->prePaintWindow( w, data, time );
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}
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void SlideEffect::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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/*
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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 SlideEffect::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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effects->paintWindow( w, mask, region, data );
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}
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void SlideEffect::postPaintScreen()
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{
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if( slide )
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effects->addRepaintFull();
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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 SlideEffect::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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void SlideEffect::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( 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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} // namespace
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#include "slide.moc"
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