From 8b5806b90d9412aa2102a6dc5b50a3bcf64b4178 Mon Sep 17 00:00:00 2001 From: Philip Falkner Date: Mon, 9 Jul 2007 21:05:34 +0000 Subject: [PATCH] Add support for window/desktop captions to BoxSwitch. svn path=/trunk/KDE/kdebase/workspace/; revision=685843 --- effects/boxswitch.cpp | 79 ++++++++++++++++++++++++++++++++++++++----- effects/boxswitch.h | 9 ++++- 2 files changed, 79 insertions(+), 9 deletions(-) diff --git a/effects/boxswitch.cpp b/effects/boxswitch.cpp index c67032483f..91c6cfeb10 100644 --- a/effects/boxswitch.cpp +++ b/effects/boxswitch.cpp @@ -14,9 +14,10 @@ License. See the file "COPYING" for the exact licensing terms. #include #include +#include #include -#include +#include #ifdef HAVE_OPENGL #include @@ -87,11 +88,12 @@ void BoxSwitchEffect::paintScreen( int mask, QRegion region, ScreenPaintData& da { if( w == selected_window ) { - paintHighlight( windows[ w ]->area, w->caption()); + paintHighlight( windows[ w ]->area ); } paintWindowThumbnail( w ); paintWindowIcon( w ); } + paintText( text_area, selected_window->caption()); } else { @@ -103,12 +105,12 @@ void BoxSwitchEffect::paintScreen( int mask, QRegion region, ScreenPaintData& da { if( painting_desktop == selected_desktop ) { - paintHighlight( desktops[ painting_desktop ]->area, - effects->desktopName( painting_desktop )); + paintHighlight( desktops[ painting_desktop ]->area ); //effects->desktopName( painting_desktop ) } paintDesktopThumbnail( painting_desktop ); } + paintText( text_area, effects->desktopName( selected_desktop )); painting_desktop = 0; } } @@ -261,6 +263,7 @@ void BoxSwitchEffect::tabBoxUpdated() if( windows.contains( selected_window )) effects->addRepaint( windows.value( selected_window )->area ); selected_window->addRepaintFull(); + effects->addRepaint( text_area ); if( effects->currentTabBoxWindowList() == original_windows ) return; original_windows = effects->currentTabBoxWindowList(); @@ -272,6 +275,7 @@ void BoxSwitchEffect::tabBoxUpdated() selected_desktop = effects->currentTabBoxDesktop(); if( desktops.contains( selected_desktop )) effects->addRepaint( desktops.value( selected_desktop )->area ); + effects->addRepaint( text_area ); if( effects->currentTabBoxDesktopList() == original_desktops ) return; original_desktops = effects->currentTabBoxDesktopList(); @@ -374,6 +378,8 @@ void BoxSwitchEffect::calculateFrameSize() item_max_size.setWidth( 200 ); item_max_size.setHeight( 200 ); } + // How much height to reserve for a one-line text label + text_area.setHeight( int( kapp->fontMetrics().height() * 1.2 )); // Shrink the size until all windows/desktops can fit onscreen frame_area.setWidth( frame_margin * 2 + itemcount * item_max_size.width()); while( frame_area.width() > displayWidth()) @@ -381,8 +387,11 @@ void BoxSwitchEffect::calculateFrameSize() item_max_size /= 2; frame_area.setWidth( frame_margin * 2 + itemcount * item_max_size.width()); } - frame_area.setHeight( frame_margin * 2 + item_max_size.height() + 15 ); - frame_area.moveTo( ( displayWidth() - frame_area.width()) / 2, ( displayHeight() - frame_area.height()) / 2 ); + frame_area.setHeight( frame_margin * 2 + item_max_size.height() + text_area.height()); + text_area.setWidth( frame_area.width() - frame_margin * 2 ); + + frame_area.moveTo(( displayWidth() - frame_area.width()) / 2, ( displayHeight() - frame_area.height()) / 2 ); + text_area.moveTo( frame_area.x() + frame_margin, frame_area.y() + frame_margin + item_max_size.height()); } void BoxSwitchEffect::calculateItemSizes() @@ -453,7 +462,7 @@ void BoxSwitchEffect::paintFrame() #endif } -void BoxSwitchEffect::paintHighlight( QRect area, QString text ) +void BoxSwitchEffect::paintHighlight( QRect area ) { double alpha = 0.75; #ifdef HAVE_OPENGL @@ -485,7 +494,6 @@ void BoxSwitchEffect::paintHighlight( QRect area, QString text ) XRenderFreePicture( display(), pic ); } #endif -// kDebug() << text << endl; // TODO draw this nicely on screen } void BoxSwitchEffect::paintWindowThumbnail( EffectWindow* w ) @@ -601,4 +609,59 @@ void BoxSwitchEffect::paintWindowIcon( EffectWindow* w ) #endif } +void BoxSwitchEffect::paintText( QRect area, QString text ) + { + QPainter p; + + textPixmap = QPixmap( area.width(), area.height()); + textPixmap.fill( Qt::transparent ); + + p.begin( &textPixmap ); + p.setRenderHint( QPainter::TextAntialiasing ); + p.setPen( Qt::white ); + p.drawText( 0, 0, textPixmap.width(), textPixmap.height(), + Qt::AlignHCenter | Qt::AlignVCenter | Qt::TextSingleLine, + p.fontMetrics().elidedText( text, Qt::ElideMiddle, textPixmap.width())); + p.end(); + +#ifdef HAVE_OPENGL + if( effects->compositingType() == OpenGLCompositing ) + { + textTexture.load( textPixmap, GL_TEXTURE_RECTANGLE_ARB ); + glPushAttrib( GL_CURRENT_BIT | GL_ENABLE_BIT ); + glEnable( GL_BLEND ); + glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ); + textTexture.bind(); + const float verts[ 4 * 2 ] = + { + area.x(), area.y(), + area.x(), area.y() + area.height(), + area.x() + area.width(), area.y() + area.height(), + area.x() + area.width(), area.y() + }; + const float texcoords[ 4 * 2 ] = + { + 0, textPixmap.height(), + 0, 0, + textPixmap.width(), 0, + textPixmap.width(), textPixmap.height() + }; + renderGLGeometry( 4, verts, texcoords ); + textTexture.unbind(); + glPopAttrib(); + } +#endif +#ifdef HAVE_XRENDER + if( effects->compositingType() == XRenderCompositing ) + { + if( textPicture != None ) + XRenderFreePicture( display(), textPicture ); + textPicture = XRenderCreatePicture( display(), textPixmap.handle(), alphaFormat, 0, NULL ); + XRenderComposite( display(), textPixmap.depth() == 32 ? PictOpOver : PictOpSrc, + textPicture, None, effects->xrenderBufferPicture(), + 0, 0, 0, 0, area.x(), area.y(), area.width(), area.height()); + } +#endif + } + } // namespace diff --git a/effects/boxswitch.h b/effects/boxswitch.h index add0bcb20c..7f9c7e648e 100644 --- a/effects/boxswitch.h +++ b/effects/boxswitch.h @@ -55,10 +55,11 @@ class BoxSwitchEffect void calculateItemSizes(); void paintFrame(); - void paintHighlight( QRect area, QString text ); + void paintHighlight( QRect area ); void paintWindowThumbnail( EffectWindow* w ); void paintDesktopThumbnail( int iDesktop ); void paintWindowIcon( EffectWindow* w ); + void paintText( QRect area, QString text ); bool mActivated; Window mInput; @@ -68,6 +69,8 @@ class BoxSwitchEffect int frame_margin; // TODO graphical background int highlight_margin; // TODO graphical background QSize item_max_size; // maximum item display size (including highlight) + QRect text_area; + QPixmap textPixmap; QHash< EffectWindow*, ItemInfo* > windows; EffectWindowList original_windows; @@ -78,8 +81,12 @@ class BoxSwitchEffect int painting_desktop; +#ifdef HAVE_OPENGL + GLTexture textTexture; +#endif #ifdef HAVE_XRENDER XRenderPictFormat* alphaFormat; + Picture textPicture; #endif };