Add constructor to KApplication that allows ARGB visuals to be manually disabled

This allows the GTK Qt theme engine to work with a KApplication object when a window compositor is enabled


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1260463 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

kdecore/kapplication.cpp

@@ -685,6 +685,23 @@ KApplication::KApplication( Display *dpy, bool allowStyles ) :
     d->m_KAppDCOPInterface = new KAppDCOPInterface(this);
 }
 
+KApplication::KApplication( Display *dpy, bool disable_argb, Qt::HANDLE visual, Qt::HANDLE colormap, bool allowStyles ) :
+  TQApplication( dpy, *KCmdLineArgs::qt_argc(), *KCmdLineArgs::qt_argv(),
+                disable_argb?visual:getX11RGBAVisual(dpy), disable_argb?colormap:getX11RGBAColormap(dpy) ),
+  KInstance( KCmdLineArgs::about), display(0L), d (new KApplicationPrivate)
+{
+    aIconPixmap.pm.icon = 0L;
+    aIconPixmap.pm.miniIcon = 0L;
+    read_app_startup_id();
+    useStyles = allowStyles;
+    if (disable_argb) argb_visual = false;
+    setName( instanceName() );
+    installSigpipeHandler();
+    parseCommandLine( );
+    init( true );
+    d->m_KAppDCOPInterface = new KAppDCOPInterface(this);
+}
+
 KApplication::KApplication( Display *dpy, Qt::HANDLE visual, Qt::HANDLE colormap,
 		            bool allowStyles ) :
   TQApplication( dpy, *KCmdLineArgs::qt_argc(), *KCmdLineArgs::qt_argv(),
@@ -728,10 +745,10 @@ KApplication::KApplication( bool allowStyles, bool GUIenabled, KInstance* _insta
   TQApplication( *KCmdLineArgs::qt_argc(), *KCmdLineArgs::qt_argv(),
                 GUIenabled ),
   KInstance( _instance ),
-  argb_visual(false),
 #ifdef Q_WS_X11
   display(0L),
 #endif
+  argb_visual(false),
   d (new KApplicationPrivate)
 {
     aIconPixmap.pm.icon = 0L;

kdecore/kapplication.h

@@ -150,6 +150,35 @@ public:
    */
   KApplication(Display *display, bool allowStyles);
 
+  /**
+   * Constructor. Parses command-line arguments. Use this constructor when you
+   * you want ARGB support to be automatically detected and enabled.
+   *
+   * @param display Will be passed to Qt as the X display. The display must be
+   * valid and already opened.
+   *
+   * @param disable_argb Set to true to disable ARGB visuals in this application.
+   *
+   * @param display Will be passed to Qt as the X display. The display must be
+   * valid and already opened.
+   *
+   * @param visual A pointer to the X11 visual that should be used by the
+   * appliction. Note that only TrueColor visuals are supported on depths
+   * greater than 8 bpp. If this parameter is NULL, the default visual will
+   * be used instead.
+   *
+   * @param allowStyles Set to false to disable the loading on plugin based
+   * styles. This is only useful to applications that do not display a GUI
+   * normally. If you do create an application with @p allowStyles set to false
+   * that normally runs in the background but under special circumstances
+   * displays widgets call enableStyles() before displaying any widgets.
+   *
+   * @since KDE 3.5
+   * 
+   * @see RGBADisplay()
+   */
+  KApplication(Display *display, bool disable_argb, Qt::HANDLE visual, Qt::HANDLE colormap, bool allowStyles);
+
   /**
    * Constructor. Parses command-line arguments. Use this constructor when you
    * you need to use a non-default visual or colormap.