Patch provided by mithro

I've included 2 patches need to make opie support on the fly screen
 resolution changing. This is done with the following,

 qcop "QPE/System" "setCurrentMode(int,int,int)" 480 640 16

 This is good for running applications in compatibility mode on the C700.
 As you can see there isn't much to these patches.

2 files changed, 48 insertions, 0 deletions

diff --git a/library/qpeapplication.cpp b/library/qpeapplication.cpp
index 149e6bb..71ec5b3 100644
--- a/library/qpeapplication.cpp
+++ b/library/qpeapplication.cpp
@@ -1054,32 +1054,65 @@ void QPEApplication::setDefaultRotation( int r )
                 deforient = r;
                 setenv( "QWS_DISPLAY", QString( "Transformed:Rot%1:0" ).arg( r ).latin1(), 1 );
                 Config config("qpe");
                 config.setGroup( "Rotation" );
                 config.writeEntry( "Rot", r );
         }
         else {
 #ifndef QT_NO_COP
                 { QCopEnvelope e( "QPE/System", "setDefaultRotation(int)" );
                         e << r;
                 }
 #endif
 
         }
 }
 
+#include <qgfx_qws.h>
+#include <qwindowsystem_qws.h>
+#include <qpixmapcache.h>
+
+extern void qws_clearLoadedFonts();
+
+inline void QPEApplication::setCurrentMode( int x, int y, int depth )
+{
+    // Reset the caches
+    qws_clearLoadedFonts();
+    QPixmapCache::clear();
+
+    // Change the screen mode
+    qt_screen->setMode(x, y, depth);
+
+    if ( qApp->type() == GuiServer ) {
+        // Reconfigure the GuiServer
+        qwsServer->beginDisplayReconfigure();
+        qwsServer->endDisplayReconfigure();
+
+        // Get all the running apps to reset
+        QCopEnvelope env( "QPE/System", "reset()" );
+    }
+}
+
+inline void QPEApplication::reset() {
+    // Reconnect to the screen
+    qt_screen->disconnect();
+    qt_screen->connect( QString::null );
+
+    // Redraw everything
+    applyStyle();
+}
 
 /*!
   \internal
 */
 void QPEApplication::applyStyle()
 {
         Config config( "qpe" );
         config.setGroup( "Appearance" );
 
     #if QT_VERSION > 233
         // don't block ourselves ...
         Opie::force_appearance = 0;
 
         static QString appname = Opie::binaryName ( );
 
         QStringList ex = config. readListEntry ( "NoStyle", ';' );
@@ -1167,32 +1200,45 @@ void QPEApplication::systemMessage( const QCString& msg, const QByteArray& data
                         bool oldactive = man-> isActive ( );
 
                         man-> setActive( !man-> isActive() );
 
                         if ( !oldactive && !man-> isActive ( )) { // no menubar to toggle -> try O-Menu
                                 QCopEnvelope e ( "QPE/TaskBar", "toggleStartMenu()" );
                         }
                 }
         }
         else if ( msg == "setDefaultRotation(int)" ) {
                 if ( type() == GuiServer ) {
                         int r;
                         stream >> r;
                         setDefaultRotation( r );
                 }
         }
+        else if ( msg == "setCurrentMode(int,int,int)" ) { // Added: 2003-06-11 by Tim Ansell <mithro@mithis.net>
+            if ( type() == GuiServer ) {
+                int x, y, depth;
+                stream >> x;
+                stream >> y;
+                stream >> depth;
+                setCurrentMode( x, y, depth );
+            }
+         }
+        else if ( msg == "reset()" ) {
+            if ( type() != GuiServer )
+                reset();
+        }
         else if ( msg == "setCurrentRotation(int)" ) {
                 int r;
                 stream >> r;
                 setCurrentRotation( r );
          }
         else if ( msg == "shutdown()" ) {
                 if ( type() == GuiServer )
                         shutdown();
         }
         else if ( msg == "quit()" ) {
                 if ( type() != GuiServer )
                         tryQuit();
         }
         else if ( msg == "forceQuit()" ) {
                 if ( type() != GuiServer )
                         quit();
diff --git a/library/qpeapplication.h b/library/qpeapplication.h
index 343e0b9..42810e8 100644
--- a/library/qpeapplication.h
+++ b/library/qpeapplication.h
@@ -35,35 +35,37 @@
 class QCopChannel;
 class QPEApplicationData;
 class QWSEvent;
 class QWSKeyEvent;
 
 
 class QPEApplication : public QApplication
 {
     Q_OBJECT
 public:
     QPEApplication( int& argc, char **argv, Type=GuiClient );
     ~QPEApplication();
 
     static QString qpeDir();
     static QString documentDir();
     void applyStyle();
+    void reset();
     static int defaultRotation();
     static void setDefaultRotation(int r);
     static void setCurrentRotation(int r);
+    static void setCurrentMode(int x, int y, int depth );
     static void grabKeyboard();
     static void ungrabKeyboard();
 
     enum StylusMode {
         LeftOnly,
         RightOnHold
         // RightOnHoldLeftDelayed, etc.
     };
     static void setStylusOperation( QWidget*, StylusMode );
     static StylusMode stylusOperation( QWidget* );
 
     enum InputMethodHint {
         Normal,
         AlwaysOff,
         AlwaysOn
     };