From d09096a784a5981a327b8e1870f2da967f7dc7b9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lubo=C5=A1=20Lu=C5=88=C3=A1k?= Date: Wed, 21 Mar 2007 17:35:48 +0000 Subject: [PATCH] The window-burning-down effect (gee), except that there's no actual flame, since I'm lame at graphics. Should be easy to add anyway. Besides the apparent unusefulness this effect should be for testing some new changes to the core. svn path=/branches/work/kwin_composite/; revision=645111 --- CMakeLists.txt | 1 + effects.cpp | 2 + effects/flame.cpp | 109 ++++++++++++++++++++++++++++++++++++++++++++++ effects/flame.h | 35 +++++++++++++++ 4 files changed, 147 insertions(+) create mode 100644 effects/flame.cpp create mode 100644 effects/flame.h diff --git a/CMakeLists.txt b/CMakeLists.txt index 9a1305526e..be2a18cb0e 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -77,6 +77,7 @@ set(kwin_KDEINIT_SRCS effects/boxswitch.cpp effects/fallapart.cpp effects/drunken.cpp + effects/flame.cpp effects/test_input.cpp effects/test_thumbnail.cpp ) diff --git a/effects.cpp b/effects.cpp index 47ac3f1a61..2d50ca7077 100644 --- a/effects.cpp +++ b/effects.cpp @@ -33,6 +33,7 @@ License. See the file "COPYING" for the exact licensing terms. #include "effects/videorecord.h" #endif #ifdef HAVE_OPENGL +#include "effects/flame.h" #include "effects/fallapart.h" #include "effects/wavywindows.h" #endif @@ -194,6 +195,7 @@ EffectsHandler::EffectsHandler() registerEffect("Fade", new GenericEffectFactory); registerEffect("ScaleIn", new GenericEffectFactory); registerEffect("FallApart", new GenericEffectFactory); + registerEffect("Flame", new GenericEffectFactory); registerEffect("DialogParent", new GenericEffectFactory); registerEffect("DesktopChangeSlide", new GenericEffectFactory); registerEffect("BoxSwitch", new GenericEffectFactory); diff --git a/effects/flame.cpp b/effects/flame.cpp new file mode 100644 index 0000000000..6920ddad0a --- /dev/null +++ b/effects/flame.cpp @@ -0,0 +1,109 @@ +/***************************************************************** + KWin - the KDE window manager + This file is part of the KDE project. + +Copyright (C) 2007 Lubos Lunak + +You can Freely distribute this program under the GNU General Public +License. See the file "COPYING" for the exact licensing terms. +******************************************************************/ + +#include "flame.h" + +#include +#include + +namespace KWinInternal +{ + +void FlameEffect::prePaintScreen( int* mask, QRegion* region, int time ) + { + if( !windows.isEmpty()) + *mask |= Scene::PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS; + effects->prePaintScreen(mask, region, time); + } + +void FlameEffect::prePaintWindow( EffectWindow* w, int* mask, QRegion* region, int time ) + { + if( windows.contains( w )) + { + SceneOpenGL::Window* glwin = dynamic_cast< SceneOpenGL::Window* >( w->sceneWindow()); + if( glwin ) + { + if( windows[ w ] < 1 ) + { + windows[ w ] += time / 500.; + *mask |= Scene::PAINT_WINDOW_TRANSFORMED; + glwin->enablePainting( Scene::Window::PAINT_DISABLED_BY_DELETE ); + // Request the window to be divided into cells + glwin->requestVertexGrid( qMax( glwin->height() / 50, 5 )); + } + else + { + windows.remove( w ); + static_cast< Deleted* >( w->window())->unrefWindow(); + } + } + } + effects->prePaintWindow( w, mask, region, time ); + } + +void FlameEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data ) + { + if( windows.contains( w )) + { + SceneOpenGL::Window* glwin = dynamic_cast< SceneOpenGL::Window* >( w->sceneWindow() ); + if( glwin ) + { + QVector< SceneOpenGL::Window::Vertex >& vertices = glwin->vertices(); + QVector< SceneOpenGL::Window::Vertex > new_vertices; + double ylimit = windows[ w ] * w->height(); // parts above this are already away + assert( vertices.count() % 4 == 0 ); + for( int i = 0; + i < vertices.count(); + i += 4 ) + { + bool is_in = false; + for( int j = 0; + j < 4; + ++j ) + if( vertices[ i + j ].pos[ 1 ] >= ylimit ) + is_in = true; + if( !is_in ) + continue; + for( int j = 0; + j < 4; + ++j ) + { + SceneOpenGL::Window::Vertex vertex = vertices[ i + j ]; + new_vertices.append( vertex ); + } + } + if( new_vertices.isEmpty()) + return; // nothing to paint + glwin->vertices() = new_vertices; + glwin->markVerticesDirty(); + } + } + effects->paintWindow( w, mask, region, data ); + } + +void FlameEffect::postPaintWindow( EffectWindow* w ) + { + if( windows.contains( w )) + workspace()->addRepaint( w->geometry()); // workspace, since the window under it will need painting too + effects->postPaintScreen(); + } + +void FlameEffect::windowClosed( EffectWindow* c ) + { + windows[ c ] = 0; + static_cast< Deleted* >( c->window())->refWindow(); + } + +void FlameEffect::windowDeleted( EffectWindow* c ) + { + windows.remove( c ); + } + +} // namespace diff --git a/effects/flame.h b/effects/flame.h new file mode 100644 index 0000000000..03c9fa8e15 --- /dev/null +++ b/effects/flame.h @@ -0,0 +1,35 @@ +/***************************************************************** + KWin - the KDE window manager + This file is part of the KDE project. + +Copyright (C) 2007 Lubos Lunak + +You can Freely distribute this program under the GNU General Public +License. See the file "COPYING" for the exact licensing terms. +******************************************************************/ + +#ifndef KWIN_FLAME_H +#define KWIN_FLAME_H + +#include + +namespace KWinInternal +{ + +class FlameEffect + : public Effect + { + public: + virtual void prePaintScreen( int* mask, QRegion* region, int time ); + virtual void prePaintWindow( EffectWindow* w, int* mask, QRegion* region, int time ); + virtual void paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data ); + virtual void postPaintWindow( EffectWindow* w ); + virtual void windowClosed( EffectWindow* c ); + virtual void windowDeleted( EffectWindow* c ); + private: + QHash< const EffectWindow*, double > windows; + }; + +} // namespace + +#endif