don't allocate backbuffer for dummy surfaces

[wxWidgets.git] / include / wx / mgl / region.h

diff --git a/include/wx/mgl/region.h b/include/wx/mgl/region.h
index 3f9e10461baf721551de6e137c3deaffe3ede4dd..ec8c23c5966b665d69d6263e33cfaa26f1ac1a1b 100644 (file)
--- a/include/wx/mgl/region.h
+++ b/include/wx/mgl/region.h
@@ -4,34 +4,22 @@
 // Author:      Vaclav Slavik
 // Created:     2001/03/12
 // RCS-ID:      $Id$
-// Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
+// Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_REGION_H_
 #define _WX_REGION_H_
 
-#ifdef __GNUG__
-#pragma interface "region.h"
-#endif
-
 #include "wx/list.h"
 #include "wx/gdiobj.h"
 #include "wx/gdicmn.h"
-#include "wx/list.h"
 
 class WXDLLEXPORT wxRect;
 class WXDLLEXPORT wxPoint;
 class MGLRegion;
 
-enum wxRegionContain 
-{
-    wxOutRegion = 0, 
-    wxPartRegion = 1, 
-    wxInRegion = 2
-};
-
-class WXDLLEXPORT wxRegion : public wxGDIObject 
+class WXDLLEXPORT wxRegion : public wxGDIObject
 {
     DECLARE_DYNAMIC_CLASS(wxRegion);
     friend class WXDLLEXPORT wxRegionIterator;
@@ -41,20 +29,25 @@ public:
     wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight);
     wxRegion(const wxRect& rect);
     wxRegion(const MGLRegion& region);
+    wxRegion( const wxBitmap& bmp)
+    {
+        Union(bmp);
+    }
+    wxRegion( const wxBitmap& bmp,
+              const wxColour& transColour, int tolerance = 0)
+    {
+        Union(bmp, transColour, tolerance);
+    }
 
     wxRegion();
-    ~wxRegion();
-
-    //# Copying
-    inline wxRegion(const wxRegion& r)
-        { Ref(r); }
-    inline wxRegion& operator = (const wxRegion& r)
-        { Ref(r); return (*this); }
+    virtual ~wxRegion();
 
     //# Modify region
     // Clear current region
     void Clear(void);
 
+    bool Offset(wxCoord x, wxCoord y);
+
     // Union rectangle or region with this.
     bool Union(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
     bool Union(const wxRect& rect) { return Union(rect.x, rect.y, rect.width, rect.height); }
@@ -94,24 +87,40 @@ public:
     wxRegionContain Contains(wxCoord x, wxCoord y, wxCoord w, wxCoord h) const;
     // Does the region contain the rectangle rect?
     wxRegionContain Contains(const wxRect& rect) const;
-    
+
+    // Convert the region to a B&W bitmap with the white pixels being inside
+    // the region.
+    wxBitmap ConvertToBitmap() const;
+
+    // Use the non-transparent pixels of a wxBitmap for the region to combine
+    // with this region.  First version takes transparency from bitmap's mask,
+    // second lets the user specify the colour to be treated as transparent
+    // along with an optional tolerance value.
+    // NOTE: implemented in common/rgncmn.cpp
+    bool Union(const wxBitmap& bmp);
+    bool Union(const wxBitmap& bmp,
+               const wxColour& transColour, int tolerance = 0);
+
+
     // implementation from now on:
     const MGLRegion& GetMGLRegion() const;
-    
-private:
-    void Unshare();
+
+protected:
+    // ref counting code
+    virtual wxObjectRefData *CreateRefData() const;
+    virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
 };
 
 
 WX_DECLARE_EXPORTED_LIST(wxRect, wxRegionRectList);
 
-class WXDLLEXPORT wxRegionIterator : public wxObject 
+class WXDLLEXPORT wxRegionIterator : public wxObject
 {
     DECLARE_DYNAMIC_CLASS(wxRegionIterator);
 public:
     wxRegionIterator(void);
     wxRegionIterator(const wxRegion& region);
-    ~wxRegionIterator(void);
+    virtual ~wxRegionIterator(void);
 
     void Reset(void) { m_currentNode = NULL; }
     void Reset(const wxRegion& region);