From c43d476a1d3fc67fcf47dbf21f3b45938cd2cda0 Mon Sep 17 00:00:00 2001
From: Robert Knight <robertknight@gmail.com>
Date: Thu, 10 May 2007 01:09:55 +0000
Subject: [PATCH] Menu items and keyboard shortcuts to change the size of the
 current view in split-view mode.  Use Ctrl+Shift+[ to shrink the size of the
 current view by 10% and Ctrl+Shift+] to increase the size of the current view
 by 10%

svn path=/trunk/KDE/kdebase/apps/konsole/; revision=663091
---
 src/ViewManager.cpp  | 23 +++++++++++++++++++++--
 src/ViewManager.h    |  2 ++
 src/ViewSplitter.cpp | 32 ++++++++++++++++++++++++++++++++
 src/ViewSplitter.h   | 11 +++++++++++
 4 files changed, 66 insertions(+), 2 deletions(-)

diff --git a/src/ViewManager.cpp b/src/ViewManager.cpp
index 5d9b9e431..18ece15b8 100644
--- a/src/ViewManager.cpp
+++ b/src/ViewManager.cpp
@@ -142,7 +142,19 @@ void ViewManager::setupActions()
         detachViewAction->setShortcut( QKeySequence(Qt::CTRL+Qt::SHIFT+Qt::Key_H) );
 
         connect( detachViewAction , SIGNAL(triggered()) , this , SLOT(detachActiveView()) );
-    
+   
+        // Expand & Shrink Active View
+        KAction* expandActiveAction = new KAction( i18n("Expand View") , this );
+        expandActiveAction->setShortcut( QKeySequence(Qt::CTRL+Qt::SHIFT+Qt::Key_BracketRight) );
+        collection->addAction("expand-active-view",expandActiveAction);
+        connect( expandActiveAction , SIGNAL(triggered()) , this , SLOT(expandActiveView()) );
+
+        KAction* shrinkActiveAction = new KAction( i18n("Shrink View") , this );
+        shrinkActiveAction->setShortcut( QKeySequence(Qt::CTRL+Qt::SHIFT+Qt::Key_BracketLeft) );
+        collection->addAction("shrink-active-view",shrinkActiveAction);
+        connect( shrinkActiveAction , SIGNAL(triggered()) , this , SLOT(shrinkActiveView()) );
+
+        // Next / Previous View , Next Container
         collection->addAction("next-view",nextViewAction);
         collection->addAction("previous-view",previousViewAction);
         collection->addAction("next-container",nextContainerAction);
@@ -316,6 +328,14 @@ void ViewManager::removeContainer(ViewContainer* container)
     container->deleteLater();
     emit splitViewToggle(_viewSplitter->containers().count() > 1);
 }
+void ViewManager::expandActiveView()
+{
+    _viewSplitter->adjustContainerSize(_viewSplitter->activeContainer(),10);
+}
+void ViewManager::shrinkActiveView()
+{
+    _viewSplitter->adjustContainerSize(_viewSplitter->activeContainer(),-10);
+}
 void ViewManager::closeActiveView()
 {
     // only do something if there is more than one container active
@@ -498,7 +518,6 @@ TerminalDisplay* ViewManager::createTerminalDisplay()
    display->setCutToBeginningOfLine(true);
    display->setTerminalSizeStartup(false);
    display->setScrollBarLocation(TerminalDisplay::SCROLLBAR_RIGHT);
-
    
    return display;
 }
diff --git a/src/ViewManager.h b/src/ViewManager.h
index 60b6efbb1..a8d22c538 100644
--- a/src/ViewManager.h
+++ b/src/ViewManager.h
@@ -140,6 +140,8 @@ private slots:
     void splitTopBottom();
     void closeActiveView();
     void closeOtherViews();
+    void expandActiveView();
+    void shrinkActiveView();
 
     // called when the "Detach View" menu item is selected
     void detachActiveView();
diff --git a/src/ViewSplitter.cpp b/src/ViewSplitter.cpp
index 4bb77cbd2..a2ed705a3 100644
--- a/src/ViewSplitter.cpp
+++ b/src/ViewSplitter.cpp
@@ -49,6 +49,38 @@ void ViewSplitter::childEmpty(ViewSplitter* splitter)
         emit empty(this);
 }
 
+void ViewSplitter::adjustContainerSize(ViewContainer* container , int percentage)
+{
+    int containerIndex = indexOf(container->containerWidget());
+
+    Q_ASSERT( containerIndex != -1 );
+
+    QList<int> containerSizes = sizes();
+
+    int oldSize = containerSizes[containerIndex];
+    int newSize = oldSize * ( 1.0 + percentage/100.0 );
+
+   // qDebug() << "Old container size:" << oldSize << ", new size:" << newSize;
+
+    int perContainerDelta = ( (newSize-oldSize) / (count()-1) ) * (-1);
+
+   //  qDebug() << "Changing sizes of other containers by " << perContainerDelta << "pixels.";
+
+    for ( int i = 0 ; i < containerSizes.count() ; i++ )
+    {
+        //qDebug() << "Container" << i << "old size =" << containerSizes[i];
+
+        if ( i == containerIndex )
+            containerSizes[i] = newSize;
+        else
+            containerSizes[i] = containerSizes[i] + perContainerDelta;
+        
+        //qDebug() << "Container" << i << "new size =" << containerSizes[i];
+    }
+
+    setSizes(containerSizes);
+}
+
 ViewSplitter* ViewSplitter::activeSplitter()
 {
    // qDebug() << "BEGIN activeSplitter" ;
diff --git a/src/ViewSplitter.h b/src/ViewSplitter.h
index 334877213..652fd991c 100644
--- a/src/ViewSplitter.h
+++ b/src/ViewSplitter.h
@@ -98,6 +98,17 @@ public:
      */
     void activateNextContainer();
 
+    /**
+     * Changes the size of the specified @p container by a given @p percentage.
+     * @p percentage may be positive ( in which case the size of the container 
+     * is increased ) or negative ( in which case the size of the container 
+     * is decreased ).  
+     *
+     * The sizes of the remaining containers are increased or decreased
+     * uniformly to maintain the width of the splitter.
+     */
+    void adjustContainerSize(ViewContainer* container , int percentage);
+
    /**
     * Gives the focus to the active view in the previous container
     */