Make the window size at first startup big as 3/4 of the available screen size.

This currently does not seem to work as it should, because the max size is really contrained to 2/3 of the screen size, as per Qt behaviour (or bug?)
Anyway, even 2/3 is better than before.

svn path=/trunk/KDE/kdegraphics/okular/; revision=912463

shell/shell.cpp

@@ -20,6 +20,7 @@
 #include "shell.h"
 
 // qt/kde includes
+#include <qdesktopwidget.h>
 #include <qtimer.h>
 #include <QtDBus/qdbusconnection.h>
 #include <kaction.h>
@@ -95,11 +96,6 @@ void Shell::init()
 
   readSettings();
 
-  if (!KGlobal::config()->hasGroup("MainWindow"))
-  {
-    showMaximized();
-  }
-
   if (m_args && m_args->isSet("unique") && m_args->count() == 1)
   {
     QDBusConnection::sessionBus().registerService("org.kde.okular");
@@ -315,4 +311,9 @@ void Shell::slotShowMenubar()
         menuBar()->hide();
 }
 
+QSize Shell::sizeHint() const
+{
+    return QApplication::desktop()->availableGeometry( this ).size() * 0.75;
+}
+
 #include "shell.moc"

shell/shell.h

@@ -47,6 +47,8 @@ public:
    * Default Destructor
    */
   virtual ~Shell();
+
+  QSize sizeHint() const;
 public slots:
   void slotQuit();