Add new delayed initialization constructor to QApplication

2 files changed, 103 insertions, 0 deletions

diff --git a/src/kernel/qapplication.cpp b/src/kernel/qapplication.cpp
index 7296f4c..849c41c 100644
--- a/src/kernel/qapplication.cpp
+++ b/src/kernel/qapplication.cpp
@@ -923,6 +923,103 @@ QApplication::QApplication(Display *dpy, int argc, char **argv,
 
 #endif // Q_WS_X11
 
+QApplication::QApplication( bool delayed_init ) {
+	if (!delayed_init) {
+		qWarning( "QApplication: incorrect constructor likely specified." );
+	}
+}
+
+#if defined(Q_WS_X11)
+/*!
+  Create an application, given an already open display \a dpy. If \a
+  visual and \a colormap are non-zero, the application will use those as
+  the default Visual and Colormap contexts.
+
+  \warning Qt only supports TrueColor visuals at depths higher than 8
+  bits-per-pixel.
+
+  This is available only on X11.
+*/
+
+void QApplication::doLateInitialization( Display* dpy, HANDLE visual, HANDLE colormap )
+{
+    static int aargc = 1;
+    // ### a string literal is a cont char*
+    // ### using it as a char* is wrong and could lead to segfaults
+    // ### if aargv is modified someday
+    static char *aargv[] = { (char*)"unknown", 0 };
+
+    app_argc = aargc;
+    app_argv = aargv;
+
+    qt_appType = GuiClient;
+    qt_is_gui_used = TRUE;
+    qt_appType = GuiClient;
+    init_precmdline();
+    // ... no command line.
+
+    if ( ! dpy ) {
+#ifdef QT_CHECK_STATE
+	qWarning( "QApplication: invalid Display* argument." );
+#endif // QT_CHECK_STATE
+
+	qt_init( &aargc, aargv, GuiClient );
+    } else {
+	qt_init( dpy, visual, colormap );
+    }
+
+    initialize( aargc, aargv );
+
+    if ( qt_is_gui_used )
+	qt_maxWindowRect = desktop()->rect();
+    if ( eventloop )
+	eventloop->appStartingUp();
+}
+
+/*!
+  Create an application, given an already open display \a dpy and using
+  \a argc command line arguments in \a argv. If \a
+  visual and \a colormap are non-zero, the application will use those as
+  the default Visual and Colormap contexts.
+
+  \warning Qt only supports TrueColor visuals at depths higher than 8
+  bits-per-pixel.
+
+  This is available only on X11.
+
+*/
+void QApplication::doLateInitialization(Display *dpy, int argc, char **argv,
+			   HANDLE visual, HANDLE colormap)
+{
+    qt_appType = GuiClient;
+    qt_is_gui_used = TRUE;
+    qt_appType = GuiClient;
+    init_precmdline();
+
+    app_argc = argc;
+    app_argv = argv;
+
+    if ( ! dpy ) {
+#ifdef QT_CHECK_STATE
+	qWarning( "QApplication: invalid Display* argument." );
+#endif // QT_CHECK_STATE
+
+	qt_init( &argc, argv, GuiClient );
+    } else {
+	qt_init(dpy, visual, colormap);
+    }
+
+    process_cmdline( &argc, argv );
+    initialize(argc, argv);
+
+    if ( qt_is_gui_used )
+	qt_maxWindowRect = desktop()->rect();
+    if ( eventloop )
+	eventloop->appStartingUp();
+}
+
+
+#endif // Q_WS_X11
 
 void QApplication::init_precmdline()
 {
diff --git a/src/kernel/qapplication.h b/src/kernel/qapplication.h
index 39f7858..8378135 100644
--- a/src/kernel/qapplication.h
+++ b/src/kernel/qapplication.h
@@ -74,6 +74,7 @@ class Q_EXPORT QApplication : public QObject
 {
     Q_OBJECT
 public:
+    QApplication( bool delayed_init );
     QApplication( int &argc, char **argv );
     QApplication( int &argc, char **argv, bool GUIenabled );
     enum Type { Tty, GuiClient, GuiServer };
@@ -85,6 +86,11 @@ public:
 #endif
     virtual ~QApplication();
 
+#if defined(Q_WS_X11)
+    void doLateInitialization( Display* dpy, HANDLE visual = 0, HANDLE cmap = 0 );
+    void doLateInitialization( Display *dpy, int argc, char **argv, HANDLE visual = 0, HANDLE cmap= 0 );
+#endif
+
     int		    argc()	const;
     char	  **argv()	const;