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.

1 files changed, 46 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
@@ -1038,64 +1038,97 @@ int QPEApplication::defaultRotation()
                 else if ( d.contains( "Rot270" ) ) {
                         deforient = 270;
                 }
                 else {
                         deforient = 0;
                 }
         }
         return deforient;
 }
 
 /*!
   \internal
 */
 void QPEApplication::setDefaultRotation( int r )
 {
         if ( qApp->type() == GuiServer ) {
                 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", ';' );
         int nostyle = 0;
         for ( QStringList::Iterator it = ex. begin ( ); it != ex. end ( ); ++it ) {
                 if ( QRegExp (( *it ). mid ( 1 ), false, true ). find ( appname, 0 ) >= 0 ) {
                         nostyle = ( *it ). left ( 1 ). toInt ( 0, 32 );
                         break;
                 }
         }
 
         // Widget style
         QString style = config.readEntry( "Style", "FlatStyle" );
 
         // don't set a custom style
         if ( nostyle & Opie::Force_Style )
                 style = "FlatStyle";
 
         internalSetStyle ( style );
@@ -1151,64 +1184,77 @@ void QPEApplication::applyStyle()
         Opie::force_appearance &= ~nostyle;
     #endif
 }
 
 void QPEApplication::systemMessage( const QCString& msg, const QByteArray& data )
 {
 #ifdef Q_WS_QWS
         QDataStream stream( data, IO_ReadOnly );
         if ( msg == "applyStyle()" ) {
                 applyStyle();
         }
         else if ( msg == "toggleApplicationMenu()" ) {
                 QWidget *active = activeWindow ( );
 
                 if ( active ) {
                         QPEMenuToolFocusManager *man = QPEMenuToolFocusManager::manager ( );
                         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();
         }
         else if ( msg == "restart()" ) {
                 if ( type() == GuiServer )
                         restart();
         }
         else if ( msg == "language(QString)" ) {
                 if ( type() == GuiServer ) {
                         QString l;
                         stream >> l;
                         QString cl = getenv( "LANG" );
                         if ( cl != l ) {
                                 if ( l.isNull() )
                                         unsetenv( "LANG" );
                                 else
                                         setenv( "LANG", l.latin1(), 1 );
                                 restart();