Electric Border handling for desktopgrid effect

FEATURE: 155954

svn path=/trunk/KDE/kdebase/workspace/; revision=768124

effects/desktopgrid.cpp

@@ -51,6 +51,14 @@ DesktopGridEffect::DesktopGridEffect()
     connect( a, SIGNAL( triggered( bool )), this, SLOT( toggle()));
     KConfigGroup conf = effects->effectConfig("DesktopGrid");
     slideEnabled = conf.readEntry( "Slide", true );
+
+    borderActivate = (ElectricBorder)conf.readEntry("BorderActivate", (int)ElectricNone);
+    effects->reserveElectricBorder( borderActivate );
+    }
+
+DesktopGridEffect::~DesktopGridEffect()
+    {
+    effects->unreserveElectricBorder( borderActivate );
     }
 
 void DesktopGridEffect::prePaintScreen( ScreenPrePaintData& data, int time )
@@ -615,6 +623,18 @@ void DesktopGridEffect::setHighlightedDesktop( int d )
     effects->addRepaint( desktopRect( highlighted_desktop, true ));
     }
 
+bool DesktopGridEffect::borderActivated( ElectricBorder border )
+    {
+    if( effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this )
+        return false;
+    if( border == borderActivate && !activated )
+        {
+        toggle();
+        return true;
+        }
+    return false;
+    }
+
 } // namespace
 
 #include "desktopgrid.moc"

effects/desktopgrid.h

@@ -33,6 +33,7 @@ class DesktopGridEffect
     Q_OBJECT
     public:
         DesktopGridEffect();
+        ~DesktopGridEffect();
         virtual void prePaintScreen( ScreenPrePaintData& data, int time );
         virtual void paintScreen( int mask, QRegion region, ScreenPaintData& data );
         virtual void postPaintScreen();
@@ -42,6 +43,7 @@ class DesktopGridEffect
         virtual void desktopChanged( int old );
         virtual void windowInputMouseEvent( Window w, QEvent* e );
         virtual void grabbedKeyboardEvent( QKeyEvent* e );
+        virtual bool borderActivated( ElectricBorder border );
     private slots:
         void toggle();
     private:
@@ -71,6 +73,7 @@ class DesktopGridEffect
         QPoint slide_start_pos;
         bool slide_painting_sticky;
         QPoint slide_painting_diff;
+        ElectricBorder borderActivate;
     };
 
 } // namespace

effects/desktopgrid_config.cpp

@@ -31,7 +31,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <kconfiggroup.h>
 
 #include <QVBoxLayout>
+#include <QHBoxLayout>
 #include <QCheckBox>
+#include <QComboBox>
+#include <QLabel>
 #ifndef KDE_USE_FINAL
 KWIN_EFFECT_CONFIG_FACTORY
 #endif
@@ -49,6 +52,25 @@ DesktopGridEffectConfig::DesktopGridEffectConfig(QWidget* parent, const QVariant
     connect(mSlide, SIGNAL(toggled(bool)), this, SLOT(changed()));
     layout->addWidget(mSlide);
 
+    QHBoxLayout* comboLayout = new QHBoxLayout();
+    QLabel* label = new QLabel(i18n("Activate when cursor is at a specific edge "
+            "or corner of the screen:"), this);
+
+    mActivateCombo = new QComboBox;
+    mActivateCombo->addItem(i18n("Top"));
+    mActivateCombo->addItem(i18n("Top-right"));
+    mActivateCombo->addItem(i18n("Right"));
+    mActivateCombo->addItem(i18n("Bottom-right"));
+    mActivateCombo->addItem(i18n("Bottom"));
+    mActivateCombo->addItem(i18n("Bottom-left"));
+    mActivateCombo->addItem(i18n("Left"));
+    mActivateCombo->addItem(i18n("Top-left"));
+    mActivateCombo->addItem(i18n("None"));
+    connect(mActivateCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
+    comboLayout->addWidget(label);
+    comboLayout->addWidget(mActivateCombo);
+    layout->addLayout(comboLayout);
+    
     KGlobalAccel::self()->overrideMainComponentData(componentData());
     KActionCollection* actionCollection = new KActionCollection( this, KComponentData("kwin") );
     KAction* show = static_cast<KAction*>(actionCollection->addAction( "ShowDesktopGrid" ));
@@ -78,6 +100,11 @@ void DesktopGridEffectConfig::load()
     KConfigGroup conf = EffectsHandler::effectConfig("DesktopGrid");
     mSlide->setChecked(conf.readEntry("Slide", true));
 
+    int activateBorder = conf.readEntry("BorderActivate", (int)ElectricNone);
+    if(activateBorder == (int)ElectricNone)
+        activateBorder--;
+    mActivateCombo->setCurrentIndex(activateBorder);
+
     emit changed(false);
     }
 
@@ -89,6 +116,10 @@ void DesktopGridEffectConfig::save()
     KConfigGroup conf = EffectsHandler::effectConfig("DesktopGrid");
     conf.writeEntry("Slide", mSlide->isChecked());
 
+    int activateBorder = mActivateCombo->currentIndex();
+    if(activateBorder == (int)ELECTRIC_COUNT)
+        activateBorder = (int)ElectricNone;
+    conf.writeEntry("BorderActivate", activateBorder);
     conf.sync();
 
     emit changed(false);
@@ -99,10 +130,10 @@ void DesktopGridEffectConfig::defaults()
     {
     kDebug() ;
     mSlide->setChecked(true);
+    mActivateCombo->setCurrentIndex( (int)ElectricNone );
     emit changed(true);
     }
 
-
 } // namespace
 
 #include "desktopgrid_config.moc"

effects/desktopgrid_config.h

@@ -25,6 +25,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <kcmodule.h>
 #undef KDE3_SUPPORT
 
+class QComboBox;
 class QCheckBox;
 
 namespace KWin
@@ -44,6 +45,7 @@ class DesktopGridEffectConfig : public KCModule
 
     private:
         QCheckBox* mSlide;
+        QComboBox* mActivateCombo;
     };
 
 } // namespace