512 lines
18 KiB
C++
512 lines
18 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) 2009 Martin Gräßlin <kde@martin-graesslin.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 "cubeslide.h"
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#include <kwinconfig.h>
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#include <kconfiggroup.h>
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#include <math.h>
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#include <GL/gl.h>
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namespace KWin
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{
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KWIN_EFFECT( cubeslide, CubeSlideEffect )
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KWIN_EFFECT_SUPPORTED( cubeslide, CubeSlideEffect::supported() )
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CubeSlideEffect::CubeSlideEffect()
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{
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reconfigure( ReconfigureAll );
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}
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CubeSlideEffect::~CubeSlideEffect()
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{
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}
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bool CubeSlideEffect::supported()
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{
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return effects->compositingType() == OpenGLCompositing;
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}
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void CubeSlideEffect::reconfigure( ReconfigureFlags )
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{
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KConfigGroup conf = effects->effectConfig( "CubeSlide" );
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int rotationDuration = animationTime( conf, "RotationDuration", 500 );
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timeLine.setCurveShape( TimeLine::EaseInOutCurve );
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timeLine.setDuration( rotationDuration );
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dontSlidePanels = conf.readEntry( "DontSlidePanels", true );
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dontSlideStickyWindows = conf.readEntry( "DontSlideStickyWindows", false );
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}
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void CubeSlideEffect::prePaintScreen( ScreenPrePaintData& data, int time)
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{
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if( !slideRotations.empty() )
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{
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data.mask |= PAINT_SCREEN_TRANSFORMED | Effect::PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS | PAINT_SCREEN_BACKGROUND_FIRST;
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timeLine.addTime( time );
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if( dontSlidePanels )
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panels.clear();
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if( dontSlideStickyWindows )
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stickyWindows.clear();
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}
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effects->prePaintScreen( data, time );
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}
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void CubeSlideEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data)
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{
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if( !slideRotations.empty() )
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{
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glPushAttrib( GL_CURRENT_BIT | GL_ENABLE_BIT );
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glEnable( GL_CULL_FACE );
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glCullFace( GL_BACK );
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glPushMatrix();
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paintSlideCube( mask, region, data );
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glPopMatrix();
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glCullFace( GL_FRONT );
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glPushMatrix();
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paintSlideCube( mask, region, data );
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glPopMatrix();
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glDisable( GL_CULL_FACE );
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glPopAttrib();
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if( dontSlidePanels )
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{
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foreach( EffectWindow* w, panels )
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{
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WindowPaintData wData( w );
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effects->paintWindow( w, 0, QRegion( w->x(), w->y(), w->width(), w->height() ), wData );
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}
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}
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if( dontSlideStickyWindows )
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{
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foreach( EffectWindow* w, stickyWindows )
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{
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WindowPaintData wData( w );
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effects->paintWindow( w, 0, QRegion( w->x(), w->y(), w->width(), w->height() ), wData );
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}
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}
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}
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else
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effects->paintScreen( mask, region, data );
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}
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void CubeSlideEffect::paintSlideCube(int mask, QRegion region, ScreenPaintData& data)
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{
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// slide cube only paints to desktops at a time
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// first the horizontal rotations followed by vertical rotations
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QRect rect = effects->clientArea( FullArea, effects->activeScreen(), effects->currentDesktop() );
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float point = rect.width()/2*tan(45.0f*M_PI/180.0f);
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cube_painting = true;
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painting_desktop = front_desktop;
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ScreenPaintData firstFaceData = data;
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ScreenPaintData secondFaceData = data;
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RotationData firstFaceRot = RotationData();
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RotationData secondFaceRot = RotationData();
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RotationDirection direction = slideRotations.head();
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int secondDesktop;
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switch ( direction )
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{
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case Left:
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firstFaceRot.axis = RotationData::YAxis;
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secondFaceRot.axis = RotationData::YAxis;
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secondDesktop = effects->desktopToLeft( front_desktop, true );
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firstFaceRot.angle = 90.0f*timeLine.value();
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secondFaceRot.angle = -90.0f*(1.0f - timeLine.value());
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break;
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case Right:
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firstFaceRot.axis = RotationData::YAxis;
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secondFaceRot.axis = RotationData::YAxis;
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secondDesktop = effects->desktopToRight( front_desktop, true );
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firstFaceRot.angle = -90.0f*timeLine.value();
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secondFaceRot.angle = 90.0f*(1.0f - timeLine.value());
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break;
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case Upwards:
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firstFaceRot.axis = RotationData::XAxis;
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secondFaceRot.axis = RotationData::XAxis;
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secondDesktop = effects->desktopAbove( front_desktop, true);
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firstFaceRot.angle = -90.0f*timeLine.value();
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secondFaceRot.angle = 90.0f*(1.0f - timeLine.value());
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point = rect.height()/2*tan(45.0f*M_PI/180.0f);
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break;
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case Downwards:
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firstFaceRot.axis = RotationData::XAxis;
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secondFaceRot.axis = RotationData::XAxis;
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secondDesktop = effects->desktopBelow( front_desktop, true );
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firstFaceRot.angle = 90.0f*timeLine.value();
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secondFaceRot.angle = -90.0f*(1.0f - timeLine.value());
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point = rect.height()/2*tan(45.0f*M_PI/180.0f);
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break;
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default:
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// totally impossible
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return;
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}
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// front desktop
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firstFaceRot.xRotationPoint = rect.width()/2;
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firstFaceRot.yRotationPoint = rect.height()/2;
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firstFaceRot.zRotationPoint = -point;
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firstFaceData.rotation = &firstFaceRot;
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other_desktop = secondDesktop;
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firstDesktop = true;
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effects->paintScreen( mask, region, firstFaceData );
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// second desktop
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other_desktop = painting_desktop;
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painting_desktop = secondDesktop;
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firstDesktop = false;
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secondFaceRot.xRotationPoint = rect.width()/2;
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secondFaceRot.yRotationPoint = rect.height()/2;
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secondFaceRot.zRotationPoint = -point;
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secondFaceData.rotation = &secondFaceRot;
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effects->paintScreen( mask, region, secondFaceData );
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cube_painting = false;
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painting_desktop = effects->currentDesktop();
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}
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void CubeSlideEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time)
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{
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if( !slideRotations.empty() && cube_painting )
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{
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QRect rect = effects->clientArea( FullArea, effects->activeScreen(), painting_desktop );
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if( dontSlidePanels && w->isDock())
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{
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panels.insert( w );
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}
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if( dontSlideStickyWindows && !w->isDock() &&
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!w->isDesktop() && w->isOnAllDesktops())
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{
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stickyWindows.insert( w );
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}
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if( w->isOnDesktop( painting_desktop ) )
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{
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if( w->x() < rect.x() )
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{
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data.quads = data.quads.splitAtX( -w->x() );
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}
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if( w->x() + w->width() > rect.x() + rect.width() )
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{
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data.quads = data.quads.splitAtX( rect.width() - w->x() );
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}
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if( w->y() < rect.y() )
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{
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data.quads = data.quads.splitAtY( -w->y() );
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}
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if( w->y() + w->height() > rect.y() + rect.height() )
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{
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data.quads = data.quads.splitAtY( rect.height() - w->y() );
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}
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w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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}
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else if( w->isOnDesktop( other_desktop ) )
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{
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RotationDirection direction = slideRotations.head();
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bool enable = false;
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if( w->x() < rect.x() &&
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( direction == Left || direction == Right ) )
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{
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data.quads = data.quads.splitAtX( -w->x() );
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enable = true;
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}
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if( w->x() + w->width() > rect.x() + rect.width() &&
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( direction == Left || direction == Right ) )
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{
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data.quads = data.quads.splitAtX( rect.width() - w->x() );
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enable = true;
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}
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if( w->y() < rect.y() &&
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( direction == Upwards || direction == Downwards ) )
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{
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data.quads = data.quads.splitAtY( -w->y() );
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enable = true;
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}
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if( w->y() + w->height() > rect.y() + rect.height() &&
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( direction == Upwards || direction == Downwards ) )
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{
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data.quads = data.quads.splitAtY( rect.height() - w->y() );
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enable = true;
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}
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if( enable )
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{
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data.setTransformed();
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data.setTranslucent();
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w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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}
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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
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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 CubeSlideEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
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{
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if( !slideRotations.empty() && cube_painting )
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{
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if( dontSlidePanels && w->isDock() )
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return;
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if( dontSlideStickyWindows &&
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w->isOnAllDesktops() && !w->isDock() && !w->isDesktop() )
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return;
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// filter out quads overlapping the edges
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QRect rect = effects->clientArea( FullArea, effects->activeScreen(), painting_desktop );
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if( w->isOnDesktop( painting_desktop ) )
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{
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if( w->x() < rect.x() )
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{
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WindowQuadList new_quads;
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foreach( const WindowQuad &quad, data.quads )
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{
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if( quad.right() > -w->x() )
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{
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new_quads.append( quad );
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}
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}
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data.quads = new_quads;
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}
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if( w->x() + w->width() > rect.x() + rect.width() )
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{
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WindowQuadList new_quads;
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foreach( const WindowQuad &quad, data.quads )
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{
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if( quad.right() <= rect.width() - w->x() )
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{
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new_quads.append( quad );
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}
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}
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data.quads = new_quads;
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}
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if( w->y() < rect.y() )
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{
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WindowQuadList new_quads;
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foreach( const WindowQuad &quad, data.quads )
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{
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if( quad.bottom() > -w->y() )
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{
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new_quads.append( quad );
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}
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}
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data.quads = new_quads;
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}
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if( w->y() + w->height() > rect.y() + rect.height() )
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{
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WindowQuadList new_quads;
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foreach( const WindowQuad &quad, data.quads )
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{
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if( quad.bottom() <= rect.height() - w->y() )
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{
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new_quads.append( quad );
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}
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}
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data.quads = new_quads;
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}
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}
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// paint windows overlapping edges from other desktop
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if( w->isOnDesktop( other_desktop ) && ( mask & PAINT_WINDOW_TRANSFORMED ) )
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{
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RotationDirection direction = slideRotations.head();
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if( w->x() < rect.x() &&
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( direction == Left || direction == Right ) )
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{
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WindowQuadList new_quads;
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data.xTranslate = rect.width();
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foreach( const WindowQuad &quad, data.quads )
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{
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if( quad.right() <= -w->x() )
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{
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new_quads.append( quad );
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}
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}
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data.quads = new_quads;
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}
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if( w->x() + w->width() > rect.x() + rect.width() &&
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( direction == Left || direction == Right ) )
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{
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WindowQuadList new_quads;
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data.xTranslate = -rect.width();
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foreach( const WindowQuad &quad, data.quads )
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{
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if( quad.right() > rect.width() - w->x() )
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{
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new_quads.append( quad );
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}
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}
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data.quads = new_quads;
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}
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if( w->y() < rect.y() &&
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( direction == Upwards || direction == Downwards ) )
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{
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WindowQuadList new_quads;
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data.yTranslate = rect.height();
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foreach( const WindowQuad &quad, data.quads )
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{
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if( quad.bottom() <= -w->y() )
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{
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new_quads.append( quad );
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}
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}
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data.quads = new_quads;
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}
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if( w->y() + w->height() > rect.y() + rect.height() &&
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( direction == Upwards || direction == Downwards ) )
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{
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WindowQuadList new_quads;
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data.yTranslate = -rect.height();
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foreach( const WindowQuad &quad, data.quads )
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{
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if( quad.bottom() > rect.height() - w->y() )
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{
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new_quads.append( quad );
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}
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}
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data.quads = new_quads;
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}
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if( firstDesktop )
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data.opacity *= timeLine.value();
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else
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data.opacity *= ( 1.0 - timeLine.value() );
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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 CubeSlideEffect::postPaintScreen()
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{
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effects->postPaintScreen();
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if( !slideRotations.empty() )
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{
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if( timeLine.value() == 1.0 )
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{
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RotationDirection direction = slideRotations.dequeue();
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switch (direction)
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{
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case Left:
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front_desktop = effects->desktopToLeft( front_desktop, true );
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break;
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case Right:
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front_desktop = effects->desktopToRight( front_desktop, true );
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break;
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case Upwards:
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front_desktop = effects->desktopAbove( front_desktop, true );
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break;
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case Downwards:
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front_desktop = effects->desktopBelow( front_desktop, true );
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break;
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}
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timeLine.setProgress( 0.0 );
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if( slideRotations.count() == 1 )
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timeLine.setCurveShape( TimeLine::EaseOutCurve );
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else
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timeLine.setCurveShape( TimeLine::LinearCurve );
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if( slideRotations.empty() )
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{
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effects->setActiveFullScreenEffect( 0 );
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}
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}
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effects->addRepaintFull();
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}
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}
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void CubeSlideEffect::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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bool activate = true;
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if( !slideRotations.empty() )
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{
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// last slide still in progress
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activate = false;
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RotationDirection direction = slideRotations.dequeue();
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slideRotations.clear();
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slideRotations.enqueue( direction );
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switch (direction)
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{
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case Left:
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old = effects->desktopToLeft( front_desktop, true );
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break;
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case Right:
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old = effects->desktopToRight( front_desktop, true );
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break;
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case Upwards:
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old = effects->desktopAbove( front_desktop, true );
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break;
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case Downwards:
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old = effects->desktopBelow( front_desktop, true );
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break;
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}
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}
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// calculate distance in respect to pager
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QPoint diff = effects->desktopGridCoords( effects->currentDesktop() ) - effects->desktopGridCoords( old );
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if( qAbs( diff.x() ) > effects->desktopGridWidth()/2 )
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{
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int sign = -1 * (diff.x()/qAbs( diff.x() ));
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diff.setX( sign * ( effects->desktopGridWidth() - qAbs( diff.x() )));
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}
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if( diff.x() > 0 )
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{
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for( int i=0; i<diff.x(); i++ )
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{
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slideRotations.enqueue( Right );
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}
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}
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else if( diff.x() < 0 )
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{
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diff.setX( -diff.x() );
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for( int i=0; i<diff.x(); i++ )
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{
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slideRotations.enqueue( Left );
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}
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}
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if( qAbs( diff.y() ) > effects->desktopGridHeight()/2 )
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{
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int sign = -1 * (diff.y()/qAbs( diff.y() ));
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diff.setY( sign * ( effects->desktopGridHeight() - qAbs( diff.y() )));
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}
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if( diff.y() > 0 )
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{
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for( int i=0; i<diff.y(); i++ )
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{
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slideRotations.enqueue( Downwards );
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}
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}
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if( diff.y() < 0 )
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{
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diff.setY( -diff.y() );
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for( int i=0; i<diff.y(); i++ )
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{
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slideRotations.enqueue( Upwards );
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}
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}
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if( activate )
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{
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if( slideRotations.count() == 1 )
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timeLine.setCurveShape( TimeLine::EaseInOutCurve );
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else
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timeLine.setCurveShape( TimeLine::EaseInCurve );
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effects->setActiveFullScreenEffect( this );
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timeLine.setProgress( 0.0 );
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front_desktop = old;
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effects->addRepaintFull();
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}
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}
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} // namespace
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