Fix kapplication ARGB init methods

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1246945 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

kdecore/kapplication.cpp

@@ -667,6 +667,22 @@ KApplication::KApplication( bool allowStyles, bool GUIenabled ) :
 }
 
 #ifdef Q_WS_X11
+KApplication::KApplication( Display *dpy, bool allowStyles ) :
+  TQApplication( dpy, *KCmdLineArgs::qt_argc(), *KCmdLineArgs::qt_argv(),
+                getX11RGBAVisual(dpy), getX11RGBAColormap(dpy) ),
+  KInstance( KCmdLineArgs::about), display(0L), d (new KApplicationPrivate)
+{
+    aIconPixmap.pm.icon = 0L;
+    aIconPixmap.pm.miniIcon = 0L;
+    read_app_startup_id();
+    useStyles = allowStyles;
+    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(),
@@ -1803,11 +1819,16 @@ bool KApplication::detectCompositionManagerAvailable(bool force_available) {
 
 Display* KApplication::openX11RGBADisplay() {
 	KCmdLineArgs *qtargs = KCmdLineArgs::parsedArgs("qt");
-	char *displayname = 0;
+	char *display = 0;
 	if ( qtargs->isSet("display"))
-		displayname = qtargs->getOption( "display" ).data();
+		display = qtargs->getOption( "display" ).data();
+	
+	Display *dpy = XOpenDisplay( display );
+	if ( !dpy ) {
+		kdError() << "cannot connect to X server " << display << endl;
+		exit( 1 );
+	}
 	
-	Display *dpy = XOpenDisplay( displayname );
 	return dpy;
 }
 
@@ -1866,53 +1887,6 @@ void KApplication::getX11RGBAInformation(Display *dpy) {
 	argb_visual = false;
 	return;
 }
-
-KApplication KApplication::KARGBApplicationObject( bool allowStyles ) {
-	KCmdLineArgs *qtargs = KCmdLineArgs::parsedArgs("qt");
-	bool argb_visual_available = false;
-	char *display = 0;
-	if ( qtargs->isSet("display"))
-		display = qtargs->getOption( "display" ).data();
-	
-	Display *dpy = XOpenDisplay( display );
-	if ( !dpy ) {
-		kdError() << "cannot connect to X server " << display << endl;
-		exit( 1 );
-	}
-	
-	int screen = DefaultScreen( dpy );
-	Colormap colormap = 0;
-	Visual *visual = 0;
-	int event_base, error_base;
-	
-	if ( XRenderQueryExtension( dpy, &event_base, &error_base ) ) {
-		int nvi;
-		XVisualInfo templ;
-		templ.screen  = screen;
-		templ.depth   = 32;
-		templ.c_class = TrueColor;
-		XVisualInfo *xvi = XGetVisualInfo( dpy, VisualScreenMask | VisualDepthMask
-				| VisualClassMask, &templ, &nvi );
-		
-		for ( int i = 0; i < nvi; i++ ) {
-			XRenderPictFormat *format = XRenderFindVisualFormat( dpy, xvi[i].visual );
-			if ( format->type == PictTypeDirect && format->direct.alphaMask ) {
-				visual = xvi[i].visual;
-				colormap = XCreateColormap( dpy, RootWindow( dpy, screen ), visual, AllocNone );
-				kdDebug() << "found visual with alpha support" << endl;
-				argb_visual_available = true;
-				break;
-			}
-		}
-	}
-	
-	if( argb_visual_available ) {
-		return KApplication( dpy, Qt::HANDLE( visual ), Qt::HANDLE( colormap ), allowStyles );
-	}
-	else {
-		return KApplication(allowStyles, true);
-	}
-}
 #else
 void KApplication::getX11RGBAInformation(Display *dpy) {
 }

kdecore/kapplication.h

@@ -114,8 +114,10 @@ public:
    *  arguments from KCmdLineArgs.
    *
    * If ARGB (transparent) widgets are to be used in your application,
-   *  please use KARGBApplication(new object name) or
-   *  KARGBApplication(new object name, allow_styles) instead of KApplication(...).
+   * please use
+   * KApplication app(KApplication::openX11RGBADisplay());
+   * or
+   * KApplication app(KApplication::openX11RGBADisplay(), useStyles);
    *
    * @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
@@ -129,6 +131,25 @@ public:
   KApplication( bool allowStyles=true, bool GUIenabled=true);
 
 #ifdef Q_WS_X11
+  /**
+   * 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 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 allowStyles);
+
   /**
    * Constructor. Parses command-line arguments. Use this constructor when you
    * you need to use a non-default visual or colormap. 
@@ -899,19 +920,13 @@ public:
 
   /**
    * @internal
-   * Opens an X11 display and returns the handle to it
-   * @return the X11 display handle
+   * Opens the display
+   * This can be used to initialize a KApplication with RGBA support like this:
+   * KApplication app(KApplication::openX11RGBADisplay());
+   * or
+   * KApplication app(KApplication::openX11RGBADisplay(), useStyles);
    */
-   Display *openX11RGBADisplay();
-
-  /**
-   * @internal
-   * Creates a default KApplication with transparency support
-   * (if available)
-   */
-   static KApplication KARGBApplicationObject( bool allowStyles=true );
-
-   #define KARGBApplication(objectname, ...) const KApplication &__kapplication_internal_app = KApplication::KARGBApplicationObject(__VA_ARGS__); KApplication &objectname = const_cast<KApplication&>(__kapplication_internal_app);
+   static Display* openX11RGBADisplay();
 
   /**
    * Returns the X11 display visual