Add profile option to scroll full/half height via Page Up/Down keys

The default is still half page - there is no GUI to change this;
either use konsoleprofile or change the .profile manually.

CCBUG: 280637

src/Profile.cpp

@@ -87,6 +87,7 @@ const Profile::PropertyInfo Profile::DefaultPropertyNames[] = {
     , { HistoryMode , "HistoryMode" , SCROLLING_GROUP , QVariant::Int }
     , { HistorySize , "HistorySize" , SCROLLING_GROUP , QVariant::Int }
     , { ScrollBarPosition , "ScrollBarPosition" , SCROLLING_GROUP , QVariant::Int }
+    , { ScrollFullPage , "ScrollFullPage" , SCROLLING_GROUP , QVariant::Bool }
 
     // Terminal Features
     , { BlinkingTextEnabled , "BlinkingTextEnabled" , TERMINAL_GROUP , QVariant::Bool }
@@ -169,6 +170,7 @@ FallbackProfile::FallbackProfile()
     setProperty(HistoryMode, Enum::FixedSizeHistory);
     setProperty(HistorySize, 1000);
     setProperty(ScrollBarPosition, Enum::ScrollBarRight);
+    setProperty(ScrollFullPage, false);
 
     setProperty(FlowControlEnabled, true);
     setProperty(BlinkingTextEnabled, true);

src/Profile.h

@@ -151,6 +151,10 @@ public:
          * See Enum::ScrollBarPositionEnum
          */
         ScrollBarPosition,
+	/** (bool) Specifies whether the PageUp/Down will scroll the full 
+	 * height or half height.
+         */
+        ScrollFullPage,
         /** (bool) Specifies whether the terminal will enable Bidirectional
          * text display
          */

src/ScreenWindow.cpp

@@ -211,12 +211,15 @@ int ScreenWindow::currentLine() const
     return qBound(0, _currentLine, lineCount() - windowLines());
 }
 
-void ScreenWindow::scrollBy(RelativeScrollMode mode , int amount)
+void ScreenWindow::scrollBy(RelativeScrollMode mode, int amount, bool fullPage)
 {
     if (mode == ScrollLines) {
         scrollTo(currentLine() + amount);
     } else if (mode == ScrollPages) {
-        scrollTo(currentLine() + amount * (windowLines() / 2));
+        if (fullPage) 
+            scrollTo(currentLine() + amount * (windowLines()));
+        else
+            scrollTo(currentLine() + amount * (windowLines() / 2));
     }
 }
 

src/ScreenWindow.h

@@ -201,8 +201,9 @@ public:
      * @param amount The number of lines or pages ( depending on @p mode ) to scroll by.  If
      * this number is positive, the view is scrolled down.  If this number is negative, the view
      * is scrolled up.
+     * @param fullPage Specifies whether to scroll by full page or half page.
      */
-    void scrollBy(RelativeScrollMode mode , int amount);
+    void scrollBy(RelativeScrollMode mode, int amount, bool fullPage);
 
     /**
      * Specifies whether the window should automatically move to the bottom

src/TerminalDisplay.cpp

@@ -318,6 +318,7 @@ TerminalDisplay::TerminalDisplay(QWidget* parent)
     , _autoCopySelectedText(false)
     , _middleClickPasteMode(Enum::PasteFromX11Selection)
     , _scrollbarLocation(Enum::ScrollBarRight)
+    , _scrollFullPage(false)
     , _wordCharacters(":@-./_~")
     , _bellMode(Enum::NotifyBell)
     , _allowBlinkingText(true)
@@ -1805,6 +1806,16 @@ void TerminalDisplay::setScroll(int cursor, int slines)
     connect(_scrollBar, SIGNAL(valueChanged(int)), this, SLOT(scrollBarPositionChanged(int)));
 }
 
+void TerminalDisplay::setScrollFullPage(bool fullPage)
+{
+    _scrollFullPage = fullPage;
+}
+
+bool TerminalDisplay::scrollFullPage() const
+{
+    return _scrollFullPage;
+}
+
 /* ------------------------------------------------------------------------- */
 /*                                                                           */
 /*                                  Mouse                                    */
@@ -2795,7 +2806,7 @@ void TerminalDisplay::outputSuspended(bool suspended)
 
 void TerminalDisplay::scrollScreenWindow(enum ScreenWindow::RelativeScrollMode mode, int amount)
 {
-    _screenWindow->scrollBy(mode, amount);
+    _screenWindow->scrollBy(mode, amount, _scrollFullPage);
     _screenWindow->setTrackOutput(_screenWindow->atEndOfOutput());
     updateLineProperties();
     updateImage();

src/TerminalDisplay.h

@@ -105,6 +105,9 @@ public:
      */
     void setScroll(int cursor, int lines);
 
+    void setScrollFullPage(bool fullPage);
+    bool scrollFullPage() const;
+
     /**
      * Returns the display's filter chain.  When the image for the display is updated,
      * the text is passed through each filter in the chain.  Each filter can define
@@ -801,6 +804,7 @@ private:
 
     QScrollBar* _scrollBar;
     Enum::ScrollBarPositionEnum _scrollbarLocation;
+    bool _scrollFullPage;
     QString     _wordCharacters;
     int         _bellMode;
 

src/ViewManager.cpp

@@ -791,6 +791,9 @@ void ViewManager::applyProfileToView(TerminalDisplay* view , const Profile::Ptr
     else if (scrollBarPosition == Enum::ScrollBarHidden)
         view->setScrollBarPosition(Enum::ScrollBarHidden);
 
+    bool scrollFullPage = profile->property<bool>(Profile::ScrollFullPage);
+    view->setScrollFullPage(scrollFullPage);
+    
     // show hint about terminal size after resizing
     view->setShowTerminalSizeHint(profile->showTerminalSizeHint());