Add preference for terminal windows buffer size (bug #41474) * QTerminal.cc (notice_settings): call new function SetScrollBufferSize with the related value from the settings * QTerminal.h: new purely virtual function SetScrollBufferSize * QUnixTerminalImpl.cpp (initialize): corrections of coding style; (setScrollBufferSize): implementation of new function; * QUnixTerminalImpl.h: new function setScrollBufferSize; * QWinTerminalImpl.cpp (class QConsolePrivate): new function (QConsolePrivate::setScrollBufferSize): implementation of new function; (QWinTerminalImpl::setScrollBufferSize): implementation of new function; * QWinTerminalImpl.h: new function setScrollBufferSize; * settings-dialog.cc (constructor): init spinbox with buffer size from settings; (write_changed_settings): write value of spinbox into settings file * settings-dialog.ui: new spinbox for terminals buffer size (terminal tab)

--- a/libgui/qterminal/libqterminal/QTerminal.h	Sun Mar 30 20:18:18 2014 -0400
+++ b/libgui/qterminal/libqterminal/QTerminal.h	Thu Mar 06 03:56:59 2014 +0500
@@ -81,6 +81,8 @@
   virtual void setCursorColor (bool useForegroundColor,
                                const QColor& color) = 0;
 
+  virtual void setScrollBufferSize(int value=1000) = 0;
+
 signals:
 
   void report_status_message (const QString&);