support for freeze and thaw under cocoa

[wxWidgets.git] / include / wx / nonownedwnd.h

diff --git a/include/wx/nonownedwnd.h b/include/wx/nonownedwnd.h
index 80294197651be125bf688b5072b7f8ccc3bb079e..696edb5e9b4cda7c3d2b0270e15b4bfbee947d27 100644 (file)
--- a/include/wx/nonownedwnd.h
+++ b/include/wx/nonownedwnd.h
@@ -14,6 +14,11 @@
 
 #include "wx/window.h"
 
+// Styles that can be used with any wxNonOwnedWindow:
+#define wxFRAME_SHAPED          0x0010  // Create a window that is able to be shaped
+
+class WXDLLIMPEXP_FWD_CORE wxGraphicsPath;
+
 // ----------------------------------------------------------------------------
 // wxNonOwnedWindow: a window that is not a child window of another one.
 // ----------------------------------------------------------------------------
@@ -24,20 +29,83 @@ public:
     // Set the shape of the window to the given region.
     // Returns true if the platform supports this feature (and the
     // operation is successful.)
-    virtual bool SetShape(const wxRegion& WXUNUSED(region)) { return false; }
+    bool SetShape(const wxRegion& region)
+    {
+        // This style is in fact only needed by wxOSX/Carbon so once we don't
+        // use this port any more, we could get rid of this requirement, but
+        // for now you must specify wxFRAME_SHAPED for SetShape() to work on
+        // all platforms.
+        wxCHECK_MSG
+        (
+            HasFlag(wxFRAME_SHAPED), false,
+            wxS("Shaped windows must be created with the wxFRAME_SHAPED style.")
+        );
+
+        return region.IsEmpty() ? DoClearShape() : DoSetRegionShape(region);
+    }
+
+#if wxUSE_GRAPHICS_CONTEXT
+    // Set the shape using the specified path.
+    bool SetShape(const wxGraphicsPath& path)
+    {
+        wxCHECK_MSG
+        (
+            HasFlag(wxFRAME_SHAPED), false,
+            wxS("Shaped windows must be created with the wxFRAME_SHAPED style.")
+        );
+
+        return DoSetPathShape(path);
+    }
+#endif // wxUSE_GRAPHICS_CONTEXT
+
+
+    // Overridden base class methods.
+    // ------------------------------
 
+    virtual void AdjustForParentClientOrigin(int& WXUNUSED(x), int& WXUNUSED(y),
+                                             int WXUNUSED(sizeFlags) = 0) const
+    {
+        // Non owned windows positions don't need to be adjusted for parent
+        // client area origin so simply do nothing here.
+    }
+
+    virtual void InheritAttributes()
+    {
+        // Non owned windows don't inherit attributes from their parent window
+        // (if the parent frame is red, it doesn't mean that all dialogs shown
+        // by it should be red as well), so don't do anything here neither.
+    }
+
+protected:
+    virtual bool DoClearShape()
+    {
+        return false;
+    }
+
+    virtual bool DoSetRegionShape(const wxRegion& WXUNUSED(region))
+    {
+        return false;
+    }
+
+#if wxUSE_GRAPHICS_CONTEXT
+    virtual bool DoSetPathShape(const wxGraphicsPath& WXUNUSED(path))
+    {
+        return false;
+    }
+#endif // wxUSE_GRAPHICS_CONTEXT
 };
 
 #if defined(__WXDFB__)
     #include "wx/dfb/nonownedwnd.h"
+#elif defined(__WXGTK20__)
+    #include "wx/gtk/nonownedwnd.h"
 #elif defined(__WXMAC__)
     #include "wx/osx/nonownedwnd.h"
-#elif defined(__WXMSW__)
+#elif defined(__WXMSW__) && !defined(__WXWINCE__)
     #include "wx/msw/nonownedwnd.h"
 #else
     // No special class needed in other ports, they can derive both wxTLW and
-    // wxPopupWindow directly from wxWindow and don't implement SetShape() (at
-    // least at this level, wxGTK does do it in wxTLW).
+    // wxPopupWindow directly from wxWindow and don't implement SetShape().
     class wxNonOwnedWindow : public wxNonOwnedWindowBase
     {
     };