Merge the coverswitch branch from git://github.com/Zarin/kwin.git (http://github.com/Zarin/kwin/tree/coverswitch)

This includes:
 * use of RotationData instead of glRotate
 * use of x/y/zTranslate instead of glTranslate
 * does not define own projection matrix
 * changed the direction of the animation (consistent with Cover Flow)
 * no special code for start/stop animations. That's now covered in the code 
for "normal" switching, thanks to not using glTranslate any more. Therefore 
minimized windows are faded instead of moved from panel
 * zoom - define how far away the windows appear (only in config dialog possible)
 * additional thumbnail bar which is shown when there are many (>= 8, configurable) windows
 * window covers can be clicked and become selected window

(Sorry for the one big commit - looking forward to the days when we don't lose commit history when using git ;-))

svn path=/trunk/KDE/kdebase/workspace/; revision=883008

effects/coverswitch.h

@@ -21,7 +21,15 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifndef KWIN_COVERSWITCH_H
 #define KWIN_COVERSWITCH_H
 
+#include <QHash>
+#include <QPixmap>
+#include <QRect>
+#include <QRegion>
+#include <QSize>
+#include <QQueue>
+
 #include <kwineffects.h>
+#include <kwinglutils.h>
 
 namespace KWin
 {
@@ -41,13 +49,23 @@ class CoverSwitchEffect
         virtual void tabBoxAdded( int mode );
         virtual void tabBoxClosed();
         virtual void tabBoxUpdated();
+        virtual void windowInputMouseEvent( Window w, QEvent* e );
 
     private:
         void paintScene( EffectWindow* frontWindow, QList< EffectWindow* >* leftWindows, QList< EffectWindow* >* rightWindows,
         bool reflectedWindows = false );
-        void paintWindowCover( EffectWindow* w, QRect windowRect, bool reflectedWindow, float opacity = 1.0 );
+        void paintWindowCover( EffectWindow* w, bool reflectedWindow, WindowPaintData& data );
         void paintFrontWindow( EffectWindow* frontWindow, int width, int leftWindows, int rightWindows, bool reflectedWindow  );
         void paintWindows( QList< EffectWindow* >* windows, bool left, bool reflectedWindows, EffectWindow* additionalWindow = NULL );
+        // thumbnail bar
+        class ItemInfo;
+        void calculateFrameSize();
+        void calculateItemSizes();
+        void paintFrame();
+        void paintHighlight( QRect area );
+        void paintWindowThumbnail( EffectWindow* w );
+        void paintWindowIcon( EffectWindow* w );
+
         bool mActivated;
         float angle;
         bool animateSwitch;
@@ -56,17 +74,54 @@ class CoverSwitchEffect
         bool animation;
         bool start;
         bool stop;
-        bool forward;
         bool reflection;
         int animationDuration;
-        int selectedWindow;
-        int rearrangeWindows;
         bool stopRequested;
         bool startRequested;
         TimeLine timeLine;
         QRect area;
-        bool twinview;
         Window input;
+        float zPosition;
+        float scaleFactor;
+        enum Direction
+            {
+            Left,
+            Right
+            };
+        Direction direction;
+        QQueue<Direction> scheduled_directions;
+        EffectWindow* selected_window;
+        int activeScreen;
+        QList< EffectWindow* > leftWindows;
+        QList< EffectWindow* > rightWindows;
+
+        // thumbnail bar
+        bool thumbnails;
+        bool dynamicThumbnails;
+        int thumbnailWindows;
+        QHash< EffectWindow*, ItemInfo* > windows;
+        QRect frame_area;
+        int frame_margin;
+        int highlight_margin;
+        QSize item_max_size; // maximum item display size (including highlight)
+        QColor color_frame;
+        QColor color_highlight;
+        QColor color_text;
+        EffectWindow* edge_window;
+        EffectWindow* right_window;
+        QRect highlight_area;
+        bool highlight_is_set;
+
+    };
+
+class CoverSwitchEffect::ItemInfo
+    {
+    public:
+        QRect area; // maximal painting area, including any frames/highlights/etc.
+        QRegion clickable;
+        QRect thumbnail;
+        QPixmap icon;
+        GLTexture iconTexture;
     };
 
 } // namespace

effects/coverswitch_config.cpp

@@ -48,7 +48,14 @@ CoverSwitchEffectConfig::CoverSwitchEffectConfig(QWidget* parent, const QVariant
     connect(m_ui->checkAnimateStart, SIGNAL(stateChanged(int)), this, SLOT(changed()));
     connect(m_ui->checkAnimateStop, SIGNAL(stateChanged(int)), this, SLOT(changed()));
     connect(m_ui->checkReflection, SIGNAL(stateChanged(int)), this, SLOT(changed()));
+    connect(m_ui->checkThumbnails, SIGNAL(stateChanged(int)), this, SLOT(changed()));
+    connect(m_ui->checkDynamicThumbnails, SIGNAL(stateChanged(int)), this, SLOT(changed()));
+    connect(m_ui->spinThumbnailWindows, SIGNAL(valueChanged(int)), this, SLOT(changed()));
     connect(m_ui->spinDuration, SIGNAL(valueChanged(int)), this, SLOT(changed()));
+    connect(m_ui->zPositionSlider, SIGNAL(valueChanged(int)), this, SLOT(changed()));
+
+    connect(m_ui->checkThumbnails, SIGNAL(stateChanged(int)), this, SLOT(thumbnailsChanged()));
+    connect(m_ui->checkDynamicThumbnails, SIGNAL(stateChanged(int)), this, SLOT(thumbnailsChanged()));
 
     load();
     }
@@ -59,44 +66,17 @@ void CoverSwitchEffectConfig::load()
 
     KConfigGroup conf = EffectsHandler::effectConfig( "CoverSwitch" );
 
-    int duration       = conf.readEntry( "Duration", 0 );
-    bool animateSwitch = conf.readEntry( "AnimateSwitch", true );
-    bool animateStart  = conf.readEntry( "AnimateStart", true );
-    bool animateStop   = conf.readEntry( "AnimateStop", true );
-    bool reflection    = conf.readEntry( "Reflection", true );
-    m_ui->spinDuration->setValue( duration );
-    if( animateSwitch )
-        {
-        m_ui->checkAnimateSwitch->setCheckState( Qt::Checked );
-        }
-    else
-        {
-        m_ui->checkAnimateSwitch->setCheckState( Qt::Unchecked );
-        }
-    if( animateStart )
-        {
-        m_ui->checkAnimateStart->setCheckState( Qt::Checked );
-        }
-    else
-        {
-        m_ui->checkAnimateStart->setCheckState( Qt::Unchecked );
-        }
-    if( animateStop )
-        {
-        m_ui->checkAnimateStop->setCheckState( Qt::Checked );
-        }
-    else
-        {
-        m_ui->checkAnimateStop->setCheckState( Qt::Unchecked );
-        }
-    if( reflection )
-        {
-        m_ui->checkReflection->setCheckState( Qt::Checked );
-        }
-    else
-        {
-        m_ui->checkReflection->setCheckState( Qt::Unchecked );
-        }
+    m_ui->spinDuration->setValue( conf.readEntry( "Duration", 0 ) );
+    m_ui->checkAnimateSwitch->setChecked( conf.readEntry( "AnimateSwitch", true ));
+    m_ui->checkAnimateStart->setChecked( conf.readEntry( "AnimateStart", true ));
+    m_ui->checkAnimateStop->setChecked( conf.readEntry( "AnimateStop", true ));
+    m_ui->checkReflection->setChecked( conf.readEntry( "Reflection", true ));
+    m_ui->checkThumbnails->setChecked( conf.readEntry( "Thumbnails", true ));
+    m_ui->checkDynamicThumbnails->setChecked( conf.readEntry( "DynamicThumbnails", true ));
+    m_ui->spinThumbnailWindows->setValue( conf.readEntry( "ThumbnailWindows", 8 ));
+    m_ui->zPositionSlider->setValue( conf.readEntry( "ZPosition", 900 ));
+
+    thumbnailsChanged();
 
     emit changed(false);
     }
@@ -106,10 +86,14 @@ void CoverSwitchEffectConfig::save()
     KConfigGroup conf = EffectsHandler::effectConfig( "CoverSwitch" );
 
     conf.writeEntry( "Duration", m_ui->spinDuration->value() );
-    conf.writeEntry( "AnimateSwitch", m_ui->checkAnimateSwitch->checkState() == Qt::Checked ? true : false );
-    conf.writeEntry( "AnimateStart", m_ui->checkAnimateStart->checkState() == Qt::Checked ? true : false );
-    conf.writeEntry( "AnimateStop", m_ui->checkAnimateStop->checkState() == Qt::Checked ? true : false );
-    conf.writeEntry( "Reflection", m_ui->checkReflection->checkState() == Qt::Checked ? true : false );
+    conf.writeEntry( "AnimateSwitch", m_ui->checkAnimateSwitch->isChecked() );
+    conf.writeEntry( "AnimateStart", m_ui->checkAnimateStart->isChecked() );
+    conf.writeEntry( "AnimateStop", m_ui->checkAnimateStop->isChecked() );
+    conf.writeEntry( "Reflection", m_ui->checkReflection->isChecked() );
+    conf.writeEntry( "Thumbnails", m_ui->checkThumbnails->isChecked() );
+    conf.writeEntry( "DynamicThumbnails", m_ui->checkDynamicThumbnails->isChecked() );
+    conf.writeEntry( "ThumbnailWindows", m_ui->spinThumbnailWindows->value() );
+    conf.writeEntry( "ZPosition", m_ui->zPositionSlider->value() );
 
     conf.sync();
 
@@ -124,9 +108,20 @@ void CoverSwitchEffectConfig::defaults()
     m_ui->checkAnimateStart->setCheckState( Qt::Checked );
     m_ui->checkAnimateStop->setCheckState( Qt::Checked );
     m_ui->checkReflection->setCheckState( Qt::Checked );
+    m_ui->checkThumbnails->setCheckState( Qt::Checked );
+    m_ui->checkDynamicThumbnails->setCheckState( Qt::Checked );
+    m_ui->spinThumbnailWindows->setValue( 8 );
+    m_ui->zPositionSlider->setValue( 900 );
     emit changed(true);
     }
 
+void CoverSwitchEffectConfig::thumbnailsChanged()
+    {
+    bool enabled = m_ui->checkThumbnails->isChecked() && m_ui->checkDynamicThumbnails->isChecked();
+    m_ui->checkDynamicThumbnails->setEnabled( m_ui->checkThumbnails->isChecked() );
+    m_ui->spinThumbnailWindows->setEnabled( enabled );
+    m_ui->labelThumbnailWindows->setEnabled( enabled );
+    }
 
 } // namespace
 

effects/coverswitch_config.h

@@ -47,6 +47,9 @@ class CoverSwitchEffectConfig : public KCModule
         virtual void load();
         virtual void defaults();
 
+    private slots:
+        void thumbnailsChanged();
+
     private:
         CoverSwitchEffectConfigForm* m_ui;
     };

effects/coverswitch_config.ui

@@ -5,12 +5,102 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>289</width>
-    <height>190</height>
+    <width>608</width>
+    <height>238</height>
    </rect>
   </property>
-  <layout class="QGridLayout" >
-   <item row="0" column="0" >
+  <layout class="QGridLayout" name="gridLayout_2" >
+   <item row="0" column="1" >
+    <widget class="QGroupBox" name="groupBox_3" >
+     <property name="title" >
+      <string>Thumbnail Bar</string>
+     </property>
+     <layout class="QFormLayout" name="formLayout" >
+      <item row="0" column="0" >
+       <widget class="QCheckBox" name="checkThumbnails" >
+        <property name="text" >
+         <string>Use additional thumbnail bar</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0" >
+       <widget class="QCheckBox" name="checkDynamicThumbnails" >
+        <property name="toolTip" >
+         <string>Only show thumbnail bar if there are at least specified number of windows</string>
+        </property>
+        <property name="text" >
+         <string>Dynamic mode</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0" >
+       <widget class="QLabel" name="labelThumbnailWindows" >
+        <property name="text" >
+         <string>Number of windows:</string>
+        </property>
+        <property name="buddy" >
+         <cstring>spinThumbnailWindows</cstring>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1" >
+       <widget class="QSpinBox" name="spinThumbnailWindows" />
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="1" column="1" >
+    <widget class="QGroupBox" name="groupBox_2" >
+     <property name="title" >
+      <string>Zoom</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_8" >
+      <item row="1" column="0" >
+       <widget class="QLabel" name="label_8" >
+        <property name="text" >
+         <string>Near</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1" >
+       <widget class="QLabel" name="label_9" >
+        <property name="text" >
+         <string>Far</string>
+        </property>
+        <property name="alignment" >
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0" colspan="2" >
+       <widget class="QSlider" name="zPositionSlider" >
+        <property name="toolTip" >
+         <string>Define how far away the windows should appear</string>
+        </property>
+        <property name="maximum" >
+         <number>3000</number>
+        </property>
+        <property name="singleStep" >
+         <number>10</number>
+        </property>
+        <property name="pageStep" >
+         <number>100</number>
+        </property>
+        <property name="orientation" >
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="tickPosition" >
+         <enum>QSlider::TicksBelow</enum>
+        </property>
+        <property name="tickInterval" >
+         <number>100</number>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item rowspan="2" row="0" column="0" >
     <widget class="QGroupBox" name="groupBox" >
      <property name="title" >
       <string>Appearance</string>
@@ -19,41 +109,28 @@
       <item row="0" column="0" colspan="2" >
        <widget class="QCheckBox" name="checkAnimateSwitch" >
         <property name="text" >
-         <string>Animate &amp;switch</string>
+         <string>Animate switch</string>
         </property>
        </widget>
       </item>
       <item row="1" column="0" colspan="2" >
        <widget class="QCheckBox" name="checkAnimateStart" >
         <property name="text" >
-         <string>Animation on tab box &amp;open</string>
+         <string>Animation on tab box open</string>
         </property>
        </widget>
       </item>
       <item row="2" column="0" colspan="2" >
        <widget class="QCheckBox" name="checkAnimateStop" >
         <property name="text" >
-         <string>Animation on tab box &amp;close</string>
+         <string>Animation on tab box close</string>
         </property>
        </widget>
       </item>
       <item row="3" column="0" colspan="2" >
        <widget class="QCheckBox" name="checkReflection" >
         <property name="text" >
-         <string>&amp;Reflections</string>
-        </property>
-       </widget>
-      </item>
-      <item row="4" column="0" >
-       <widget class="QLabel" name="label_3" >
-        <property name="text" >
-         <string>&amp;Animation duration:</string>
-        </property>
-        <property name="alignment" >
-         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-        </property>
-        <property name="buddy" >
-         <cstring>spinDuration</cstring>
+         <string>Reflections</string>
         </property>
        </widget>
       </item>
@@ -79,23 +156,25 @@
         </property>
        </widget>
       </item>
+      <item row="4" column="0" >
+       <widget class="QLabel" name="label_3" >
+        <property name="text" >
+         <string>Animation duration:</string>
+        </property>
+        <property name="alignment" >
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+        <property name="buddy" >
+         <cstring>spinDuration</cstring>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>
-   <item row="1" column="0" >
-    <spacer name="verticalSpacer" >
-     <property name="orientation" >
-      <enum>Qt::Vertical</enum>
-     </property>
-     <property name="sizeHint" stdset="0" >
-      <size>
-       <width>20</width>
-       <height>0</height>
-      </size>
-     </property>
-    </spacer>
-   </item>
   </layout>
+  <zorder>groupBox_3</zorder>
+  <zorder>groupBox</zorder>
  </widget>
  <tabstops>
   <tabstop>checkAnimateSwitch</tabstop>
@@ -103,6 +182,10 @@
   <tabstop>checkAnimateStop</tabstop>
   <tabstop>checkReflection</tabstop>
   <tabstop>spinDuration</tabstop>
+  <tabstop>checkThumbnails</tabstop>
+  <tabstop>checkDynamicThumbnails</tabstop>
+  <tabstop>spinThumbnailWindows</tabstop>
+  <tabstop>zPositionSlider</tabstop>
  </tabstops>
  <resources/>
  <connections/>