127 lines
4 KiB
C++
127 lines
4 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) 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 "resize.h"
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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#include <GL/gl.h>
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#endif
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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#include <X11/Xlib.h>
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#include <X11/extensions/Xrender.h>
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#endif
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#include <KColorScheme>
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namespace KWin
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{
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KWIN_EFFECT( resize, ResizeEffect )
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ResizeEffect::ResizeEffect()
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: m_active( false )
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, m_resizeWindow( 0 )
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{
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reconfigure( ReconfigureAll );
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}
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ResizeEffect::~ResizeEffect()
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{
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}
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void ResizeEffect::prePaintScreen( ScreenPrePaintData& data, int time )
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{
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if( m_active )
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{
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data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
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}
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effects->prePaintScreen( data, time );
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}
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void ResizeEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
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{
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effects->paintWindow( w, mask, region, data );
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if( m_active && w == m_resizeWindow )
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{
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QRegion intersection = m_originalWindowRect.intersected( w->geometry() );
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QRegion paintRegion = m_originalWindowRect.united( w->geometry() ).subtracted( intersection );
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float alpha = 0.8f;
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QColor color = KColorScheme( QPalette::Normal, KColorScheme::Selection ).background().color();
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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if( effects->compositingType() == OpenGLCompositing)
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{
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glPushAttrib( GL_CURRENT_BIT | GL_ENABLE_BIT );
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glEnable( GL_BLEND );
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glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
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glColor4f( color.red() / 255.0f, color.green() / 255.0f, color.blue() / 255.0f, alpha );
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glBegin( GL_QUADS );
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foreach( const QRect &r, paintRegion.rects() )
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{
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glVertex2i( r.x(), r.y() );
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glVertex2i( r.x() + r.width(), r.y() );
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glVertex2i( r.x() + r.width(), r.y() + r.height() );
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glVertex2i( r.x(), r.y() + r.height() );
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}
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glEnd();
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glPopAttrib();
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}
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#endif
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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if( effects->compositingType() == XRenderCompositing)
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{
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XRenderColor col;
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col.alpha = int( alpha * 0xffff );
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col.red = int( alpha * 0xffff * color.red() / 255 );
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col.green = int( alpha * 0xffff * color.green() / 255 );
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col.blue= int( alpha * 0xffff * color.blue() / 255 );
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foreach( const QRect &r, paintRegion.rects() )
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XRenderFillRectangle( display(), PictOpOver, effects->xrenderBufferPicture(),
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&col, r.x(), r.y(), r.width(), r.height());
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}
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#endif
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}
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}
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void ResizeEffect::windowUserMovedResized( EffectWindow* w, bool first, bool last )
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{
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if( first && last )
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{
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// not interested in maximized
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return;
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}
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if( first && w->isUserResize() && !w->isUserMove() )
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{
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m_active = true;
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m_resizeWindow = w;
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m_originalWindowRect = w->geometry();
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w->addRepaintFull();
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}
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if( m_active && w == m_resizeWindow && last )
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{
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m_active = false;
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m_resizeWindow = NULL;
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effects->addRepaintFull();
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}
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}
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} // namespace
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