apply complete transforms (scroll window PrepareDC was not functioning properly)

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

diff --git a/include/wx/dc.h b/include/wx/dc.h
index 747915383babd71742c543eeea075bc62cdd5179..dbe62c4d95e2f94754072a0c0c5c4e3ceeef919b 100644 (file)
--- a/include/wx/dc.h
+++ b/include/wx/dc.h
@@ -1,35 +1,34 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        dc.h
+// Name:        wx/dc.h

 // Purpose:     wxDC class
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     05/25/99
 // RCS-ID:      $Id$
 // Copyright:   (c) wxWidgets team
 // Purpose:     wxDC class
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     05/25/99
 // RCS-ID:      $Id$
 // Copyright:   (c) wxWidgets team

-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_DC_H_BASE_
 #define _WX_DC_H_BASE_
 
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_DC_H_BASE_
 #define _WX_DC_H_BASE_
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma interface "dcbase.h"
-#endif
-

 // ----------------------------------------------------------------------------
 // headers which we must include here
 // ----------------------------------------------------------------------------
 
 #include "wx/object.h"          // the base class
 
 // ----------------------------------------------------------------------------
 // headers which we must include here
 // ----------------------------------------------------------------------------
 
 #include "wx/object.h"          // the base class
 

+#include "wx/intl.h"            // for wxLayoutDirection

 #include "wx/cursor.h"          // we have member variables of these classes
 #include "wx/font.h"            // so we can't do without them
 #include "wx/colour.h"
 #include "wx/cursor.h"          // we have member variables of these classes
 #include "wx/font.h"            // so we can't do without them
 #include "wx/colour.h"

+#include "wx/bitmap.h"          // for wxNullBitmap

 #include "wx/brush.h"
 #include "wx/pen.h"
 #include "wx/palette.h"
 #include "wx/list.h"            // we use wxList in inline functions
 #include "wx/dynarray.h"
 #include "wx/brush.h"
 #include "wx/pen.h"
 #include "wx/palette.h"
 #include "wx/list.h"            // we use wxList in inline functions
 #include "wx/dynarray.h"

+#include "wx/math.h"

 
 class WXDLLEXPORT wxDC;
 class WXDLLEXPORT wxDCBase;
 
 class WXDLLEXPORT wxDC;
 class WXDLLEXPORT wxDCBase;


@@ -39,7 +38,7 @@ class WXDLLEXPORT wxDrawObject
 public:
 
     wxDrawObject()
 public:
 
     wxDrawObject()

-        : m_isBBoxValid(FALSE)
+        : m_isBBoxValid(false)

         , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
     { }
 
         , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
     { }
 


@@ -58,7 +57,7 @@ public:
       }
       else
       {
       }
       else
       {

-         m_isBBoxValid = TRUE;
+         m_isBBoxValid = true;

 
          m_minX = x;
          m_minY = y;
 
          m_minX = x;
          m_minY = y;


@@ -69,7 +68,7 @@ public:
 
     void ResetBoundingBox()
     {
 
     void ResetBoundingBox()
     {

-        m_isBBoxValid = FALSE;
+        m_isBBoxValid = false;

 
         m_minX = m_maxX = m_minY = m_maxY = 0;
     }
 
         m_minX = m_maxX = m_minY = m_maxY = 0;
     }


@@ -95,8 +94,6 @@ protected:
 // global variables
 // ---------------------------------------------------------------------------
 
 // global variables
 // ---------------------------------------------------------------------------
 

-WXDLLEXPORT_DATA(extern int) wxPageNumber;
-

 // ---------------------------------------------------------------------------
 // wxDC is the device context - object on which any drawing is done
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // wxDC is the device context - object on which any drawing is done
 // ---------------------------------------------------------------------------


@@ -106,10 +103,10 @@ class WXDLLEXPORT wxDCBase : public wxObject
 public:
     wxDCBase()
         : m_colour(wxColourDisplay())
 public:
     wxDCBase()
         : m_colour(wxColourDisplay())

-        , m_ok(TRUE)
-        , m_clipping(FALSE)
+        , m_ok(true)
+        , m_clipping(false)

         , m_isInteractive(0)
         , m_isInteractive(0)

-        , m_isBBoxValid(FALSE)
+        , m_isBBoxValid(false)

         , m_logicalOriginX(0), m_logicalOriginY(0)
         , m_deviceOriginX(0), m_deviceOriginY(0)
         , m_logicalScaleX(1.0), m_logicalScaleY(1.0)
         , m_logicalOriginX(0), m_logicalOriginY(0)
         , m_deviceOriginX(0), m_deviceOriginY(0)
         , m_logicalScaleX(1.0), m_logicalScaleY(1.0)


@@ -129,17 +126,14 @@ public:
         , m_font()
 #if wxUSE_PALETTE
         , m_palette()
         , m_font()
 #if wxUSE_PALETTE
         , m_palette()

-        , m_hasCustomPalette(FALSE)
+        , m_hasCustomPalette(false)

 #endif // wxUSE_PALETTE
     {
         ResetBoundingBox();
         ResetClipping();
     }
 
 #endif // wxUSE_PALETTE
     {
         ResetBoundingBox();
         ResetClipping();
     }
 

-    ~wxDCBase() { }
-
-    virtual void BeginDrawing() { }
-    virtual void EndDrawing() { }
+    virtual ~wxDCBase() { }

 
     // graphic primitives
     // ------------------
 
     // graphic primitives
     // ------------------


@@ -158,6 +152,28 @@ public:
                    int style = wxFLOOD_SURFACE)
         { return DoFloodFill(pt.x, pt.y, col, style); }
 
                    int style = wxFLOOD_SURFACE)
         { return DoFloodFill(pt.x, pt.y, col, style); }
 

+    // fill the area specified by rect with a radial gradient, starting from
+    // initialColour in the centre of the cercle and fading to destColour.
+    void GradientFillConcentric(const wxRect& rect,
+                                const wxColour& initialColour,
+                                const wxColour& destColour)
+        { GradientFillConcentric(rect, initialColour, destColour,
+                                 wxPoint(rect.GetWidth() / 2,
+                                         rect.GetHeight() / 2)); }
+
+    void GradientFillConcentric(const wxRect& rect,
+                                const wxColour& initialColour,
+                                const wxColour& destColour,
+                                const wxPoint& circleCenter)
+        { DoGradientFillConcentric(rect, initialColour, destColour, circleCenter); }
+
+    // fill the area specified by rect with a linear gradient
+    void GradientFillLinear(const wxRect& rect,
+                            const wxColour& initialColour,
+                            const wxColour& destColour,
+                            wxDirection nDirection = wxEAST)
+        { DoGradientFillLinear(rect, initialColour, destColour, nDirection); }
+

     bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
         { return DoGetPixel(x, y, col); }
     bool GetPixel(const wxPoint& pt, wxColour *col) const
     bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
         { return DoGetPixel(x, y, col); }
     bool GetPixel(const wxPoint& pt, wxColour *col) const


@@ -251,10 +267,10 @@ public:
         { DoDrawIcon(icon, pt.x, pt.y); }
 
     void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
         { DoDrawIcon(icon, pt.x, pt.y); }
 
     void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,

-                    bool useMask = FALSE)
+                    bool useMask = false)

         { DoDrawBitmap(bmp, x, y, useMask); }
     void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt,
         { DoDrawBitmap(bmp, x, y, useMask); }
     void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt,

-                    bool useMask = FALSE)
+                    bool useMask = false)

         { DoDrawBitmap(bmp, pt.x, pt.y, useMask); }
 
     void DrawText(const wxString& text, wxCoord x, wxCoord y)
         { DoDrawBitmap(bmp, pt.x, pt.y, useMask); }
 
     void DrawText(const wxString& text, wxCoord x, wxCoord y)


@@ -285,18 +301,23 @@ public:
 
     bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
               wxDC *source, wxCoord xsrc, wxCoord ysrc,
 
     bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
               wxDC *source, wxCoord xsrc, wxCoord ysrc,

-              int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1)
+              int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord)

     {
         return DoBlit(xdest, ydest, width, height,
                       source, xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
     }
     bool Blit(const wxPoint& destPt, const wxSize& sz,
               wxDC *source, const wxPoint& srcPt,
     {
         return DoBlit(xdest, ydest, width, height,
                       source, xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
     }
     bool Blit(const wxPoint& destPt, const wxSize& sz,
               wxDC *source, const wxPoint& srcPt,

-              int rop = wxCOPY, bool useMask = FALSE, const wxPoint& srcPtMask = wxPoint(-1, -1))
+              int rop = wxCOPY, bool useMask = false, const wxPoint& srcPtMask = wxDefaultPosition)

     {
         return DoBlit(destPt.x, destPt.y, sz.x, sz.y,
                       source, srcPt.x, srcPt.y, rop, useMask, srcPtMask.x, srcPtMask.y);
     }
     {
         return DoBlit(destPt.x, destPt.y, sz.x, sz.y,
                       source, srcPt.x, srcPt.y, rop, useMask, srcPtMask.x, srcPtMask.y);
     }

+    
+    wxBitmap GetAsBitmap(const wxRect *subrect = (const wxRect *) NULL) const
+    {
+        return DoGetAsBitmap(subrect);
+    }

 
 #if wxUSE_SPLINES
     // TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?)
 
 #if wxUSE_SPLINES
     // TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?)


@@ -346,7 +367,7 @@ public:
      *  \param angle Rotating angle (counterclockwise, start at 3 o'clock, 360 is full circle).
      *  \param center Center of rotation.
      */
      *  \param angle Rotating angle (counterclockwise, start at 3 o'clock, 360 is full circle).
      *  \param center Center of rotation.
      */

-    void Rotate( wxList* points, double angle, wxPoint center = wxPoint() );
+    void Rotate( wxList* points, double angle, wxPoint center = wxPoint(0,0) );

 
     // used by DrawEllipticArcRot
     // Careful: wxList gets filled with points you have to delete later.
 
     // used by DrawEllipticArcRot
     // Careful: wxList gets filled with points you have to delete later.


@@ -361,12 +382,18 @@ public:
 
     virtual void Clear() = 0;
 
 
     virtual void Clear() = 0;
 

-    virtual bool StartDoc(const wxString& WXUNUSED(message)) { return TRUE; }
+    virtual bool StartDoc(const wxString& WXUNUSED(message)) { return true; }

     virtual void EndDoc() { }
 
     virtual void StartPage() { }
     virtual void EndPage() { }
 
     virtual void EndDoc() { }
 
     virtual void StartPage() { }
     virtual void EndPage() { }
 

+#if WXWIN_COMPATIBILITY_2_6
+    wxDEPRECATED( void BeginDrawing() );
+    wxDEPRECATED( void EndDrawing() );
+#endif // WXWIN_COMPATIBILITY_2_6
+
+

     // set objects to use for drawing
     // ------------------------------
 
     // set objects to use for drawing
     // ------------------------------
 


@@ -477,25 +504,26 @@ public:
     // Resolution in Pixels per inch
     virtual wxSize GetPPI() const = 0;
 
     // Resolution in Pixels per inch
     virtual wxSize GetPPI() const = 0;
 

-    virtual bool Ok() const { return m_ok; }
+    virtual bool Ok() const { return IsOk(); }
+    virtual bool IsOk() const { return m_ok; }

 
     // accessors and setters
     // ---------------------
 
 
     // accessors and setters
     // ---------------------
 

-    int GetBackgroundMode() const { return m_backgroundMode; }
-    const wxBrush&  GetBackground() const { return m_backgroundBrush; }
-    const wxBrush&  GetBrush() const { return m_brush; }
-    const wxFont&   GetFont() const { return m_font; }
-    const wxPen&    GetPen() const { return m_pen; }
+    virtual int GetBackgroundMode() const { return m_backgroundMode; }
+    virtual const wxBrush&  GetBackground() const { return m_backgroundBrush; }
+    virtual const wxBrush&  GetBrush() const { return m_brush; }
+    virtual const wxFont&   GetFont() const { return m_font; }
+    virtual const wxPen&    GetPen() const { return m_pen; }

 
 

-    const wxColour& GetTextForeground() const { return m_textForegroundColour; }
-    const wxColour& GetTextBackground() const { return m_textBackgroundColour; }
+    virtual const wxColour& GetTextForeground() const { return m_textForegroundColour; }
+    virtual const wxColour& GetTextBackground() const { return m_textBackgroundColour; }

     virtual void SetTextForeground(const wxColour& colour)
         { m_textForegroundColour = colour; }
     virtual void SetTextBackground(const wxColour& colour)
         { m_textBackgroundColour = colour; }
 
     virtual void SetTextForeground(const wxColour& colour)
         { m_textForegroundColour = colour; }
     virtual void SetTextBackground(const wxColour& colour)
         { m_textBackgroundColour = colour; }
 

-    int GetMapMode() const { return m_mappingMode; }
+    virtual int GetMapMode() const { return m_mappingMode; }

     virtual void SetMapMode(int mode) = 0;
 
     virtual void GetUserScale(double *x, double *y) const
     virtual void SetMapMode(int mode) = 0;
 
     virtual void GetUserScale(double *x, double *y) const


@@ -528,17 +556,17 @@ public:
         { wxCoord x, y; DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); }
     virtual void SetDeviceOrigin(wxCoord x, wxCoord y) = 0;
 
         { wxCoord x, y; DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); }
     virtual void SetDeviceOrigin(wxCoord x, wxCoord y) = 0;
 

+    virtual void ComputeScaleAndOrigin() {}
+

     virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp) = 0;
 
     virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp) = 0;
 

-    int GetLogicalFunction() const { return m_logicalFunction; }
+    virtual int GetLogicalFunction() const { return m_logicalFunction; }

     virtual void SetLogicalFunction(int function) = 0;
 
     virtual void SetLogicalFunction(int function) = 0;
 

-    // Sometimes we need to override optimization, e.g. if other software is
-    // drawing onto our surface and we can't be sure of who's done what.
-    //
-    // FIXME: is this (still) used?
+#if WXWIN_COMPATIBILITY_2_4

     virtual void SetOptimization(bool WXUNUSED(opt)) { }
     virtual void SetOptimization(bool WXUNUSED(opt)) { }

-    virtual bool GetOptimization() { return FALSE; }
+    virtual bool GetOptimization() { return false; }
+#endif

 
     // bounding box
     // ------------
 
     // bounding box
     // ------------


@@ -554,7 +582,7 @@ public:
       }
       else
       {
       }
       else
       {

-         m_isBBoxValid = TRUE;
+         m_isBBoxValid = true;

 
          m_minX = x;
          m_minY = y;
 
          m_minX = x;
          m_minY = y;


@@ -565,7 +593,7 @@ public:
 
     void ResetBoundingBox()
     {
 
     void ResetBoundingBox()
     {

-        m_isBBoxValid = FALSE;
+        m_isBBoxValid = false;

 
         m_minX = m_maxX = m_minY = m_maxY = 0;
     }
 
         m_minX = m_maxX = m_minY = m_maxY = 0;
     }


@@ -629,11 +657,31 @@ public:
         if (h) *h = hh;
     }
 
         if (h) *h = hh;
     }
 

+    // RTL related functions
+    // ---------------------
+
+    // get or change the layout direction (LTR or RTL) for this dc,
+    // wxLayout_Default is returned if layout direction is not supported
+    virtual wxLayoutDirection GetLayoutDirection() const
+        { return wxLayout_Default; }
+    virtual void SetLayoutDirection(wxLayoutDirection WXUNUSED(dir))
+        { }
+

 protected:
     // the pure virtual functions which should be implemented by wxDC
     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
                              int style = wxFLOOD_SURFACE) = 0;
 
 protected:
     // the pure virtual functions which should be implemented by wxDC
     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
                              int style = wxFLOOD_SURFACE) = 0;
 

+    virtual void DoGradientFillLinear(const wxRect& rect,
+                                      const wxColour& initialColour,
+                                      const wxColour& destColour,
+                                      wxDirection nDirection = wxEAST);
+
+    virtual void DoGradientFillConcentric(const wxRect& rect,
+                                        const wxColour& initialColour,
+                                        const wxColour& destColour,
+                                        const wxPoint& circleCenter);
+

     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0;
 
     virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0;
     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0;
 
     virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0;


@@ -658,7 +706,7 @@ protected:
 
     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) = 0;
     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 
     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) = 0;
     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,

-                              bool useMask = FALSE) = 0;
+                              bool useMask = false) = 0;

 
     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0;
     virtual void DoDrawRotatedText(const wxString& text,
 
     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0;
     virtual void DoDrawRotatedText(const wxString& text,


@@ -667,7 +715,9 @@ protected:
     virtual bool DoBlit(wxCoord xdest, wxCoord ydest,
                         wxCoord width, wxCoord height,
                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
     virtual bool DoBlit(wxCoord xdest, wxCoord ydest,
                         wxCoord width, wxCoord height,
                         wxDC *source, wxCoord xsrc, wxCoord ysrc,

-                        int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1) = 0;
+                        int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord) = 0;
+
+    virtual wxBitmap DoGetAsBitmap(const wxRect *WXUNUSED(subrect)) const { return wxNullBitmap; }

 
     virtual void DoGetSize(int *width, int *height) const = 0;
     virtual void DoGetSizeMM(int* width, int* height) const = 0;
 
     virtual void DoGetSize(int *width, int *height) const = 0;
     virtual void DoGetSizeMM(int* width, int* height) const = 0;


@@ -685,10 +735,13 @@ protected:
     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
                                      wxCoord width, wxCoord height) = 0;
 
     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
                                      wxCoord width, wxCoord height) = 0;
 

-    // FIXME are these functions really different?
+#if WXWIN_COMPATIBILITY_2_4
+    // this was only for confusing people, use DoGetClippingBox only

     virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y,
                                      wxCoord *w, wxCoord *h)
         { DoGetClippingBox(x, y, w, h); }
     virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y,
                                      wxCoord *w, wxCoord *h)
         { DoGetClippingBox(x, y, w, h); }

+#endif
+

     virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
                                   wxCoord *w, wxCoord *h) const
     {
     virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
                                   wxCoord *w, wxCoord *h) const
     {


@@ -786,16 +839,22 @@ private:
 // now include the declaration of wxDC class
 // ----------------------------------------------------------------------------
 
 // now include the declaration of wxDC class
 // ----------------------------------------------------------------------------
 

-#if defined(__WXMSW__)
+#if defined(__WXPALMOS__)
+    #include "wx/palmos/dc.h"
+#elif defined(__WXMSW__)

     #include "wx/msw/dc.h"
 #elif defined(__WXMOTIF__)
     #include "wx/motif/dc.h"
     #include "wx/msw/dc.h"
 #elif defined(__WXMOTIF__)
     #include "wx/motif/dc.h"

-#elif defined(__WXGTK__)
+#elif defined(__WXGTK20__)

     #include "wx/gtk/dc.h"
     #include "wx/gtk/dc.h"

+#elif defined(__WXGTK__)
+    #include "wx/gtk1/dc.h"

 #elif defined(__WXX11__)
     #include "wx/x11/dc.h"
 #elif defined(__WXMGL__)
     #include "wx/mgl/dc.h"
 #elif defined(__WXX11__)
     #include "wx/x11/dc.h"
 #elif defined(__WXMGL__)
     #include "wx/mgl/dc.h"

+#elif defined(__WXDFB__)
+    #include "wx/dfb/dc.h"

 #elif defined(__WXMAC__)
     #include "wx/mac/dc.h"
 #elif defined(__WXCOCOA__)
 #elif defined(__WXMAC__)
     #include "wx/mac/dc.h"
 #elif defined(__WXCOCOA__)


@@ -804,6 +863,10 @@ private:
     #include "wx/os2/dc.h"
 #endif
 
     #include "wx/os2/dc.h"
 #endif
 

+#if wxUSE_GRAPHICS_CONTEXT
+    #include "wx/dcgraph.h"
+#endif
+

 // ----------------------------------------------------------------------------
 // helper class: you can use it to temporarily change the DC text colour and
 // restore it automatically when the object goes out of scope
 // ----------------------------------------------------------------------------
 // helper class: you can use it to temporarily change the DC text colour and
 // restore it automatically when the object goes out of scope


@@ -814,6 +877,11 @@ class WXDLLEXPORT wxDCTextColourChanger
 public:
     wxDCTextColourChanger(wxDC& dc) : m_dc(dc), m_colFgOld() { }
 
 public:
     wxDCTextColourChanger(wxDC& dc) : m_dc(dc), m_colFgOld() { }
 

+    wxDCTextColourChanger(wxDC& dc, const wxColour& col) : m_dc(dc)
+    {
+        Set(col);
+    }
+

     ~wxDCTextColourChanger()
     {
         if ( m_colFgOld.Ok() )
     ~wxDCTextColourChanger()
     {
         if ( m_colFgOld.Ok() )


@@ -835,6 +903,60 @@ private:
     DECLARE_NO_COPY_CLASS(wxDCTextColourChanger)
 };
 
     DECLARE_NO_COPY_CLASS(wxDCTextColourChanger)
 };
 

+// ----------------------------------------------------------------------------
+// helper class: you can use it to temporarily change the DC pen and
+// restore it automatically when the object goes out of scope
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxDCPenChanger
+{
+public:
+    wxDCPenChanger(wxDC& dc, const wxPen& pen) : m_dc(dc), m_penOld(dc.GetPen())
+    {
+        m_dc.SetPen(pen);
+    }
+
+    ~wxDCPenChanger()
+    {
+        if ( m_penOld.Ok() )
+            m_dc.SetPen(m_penOld);
+    }
+
+private:
+    wxDC& m_dc;
+
+    wxPen m_penOld;
+
+    DECLARE_NO_COPY_CLASS(wxDCPenChanger)
+};
+
+// ----------------------------------------------------------------------------
+// helper class: you can use it to temporarily change the DC brush and
+// restore it automatically when the object goes out of scope
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxDCBrushChanger
+{
+public:
+    wxDCBrushChanger(wxDC& dc, const wxBrush& brush) : m_dc(dc), m_brushOld(dc.GetBrush())
+    {
+        m_dc.SetBrush(brush);
+    }
+
+    ~wxDCBrushChanger()
+    {
+        if ( m_brushOld.Ok() )
+            m_dc.SetBrush(m_brushOld);
+    }
+
+private:
+    wxDC& m_dc;
+
+    wxBrush m_brushOld;
+
+    DECLARE_NO_COPY_CLASS(wxDCBrushChanger)
+};
+

 // ----------------------------------------------------------------------------
 // another small helper class: sets the clipping region in its ctor and
 // destroys it in the dtor
 // ----------------------------------------------------------------------------
 // another small helper class: sets the clipping region in its ctor and
 // destroys it in the dtor


@@ -843,6 +965,8 @@ private:
 class WXDLLEXPORT wxDCClipper
 {
 public:
 class WXDLLEXPORT wxDCClipper
 {
 public:

+    wxDCClipper(wxDC& dc, const wxRegion& r) : m_dc(dc)
+        { dc.SetClippingRegion(r); }

     wxDCClipper(wxDC& dc, const wxRect& r) : m_dc(dc)
         { dc.SetClippingRegion(r.x, r.y, r.width, r.height); }
     wxDCClipper(wxDC& dc, wxCoord x, wxCoord y, wxCoord w, wxCoord h) : m_dc(dc)
     wxDCClipper(wxDC& dc, const wxRect& r) : m_dc(dc)
         { dc.SetClippingRegion(r.x, r.y, r.width, r.height); }
     wxDCClipper(wxDC& dc, wxCoord x, wxCoord y, wxCoord w, wxCoord h) : m_dc(dc)


@@ -856,5 +980,4 @@ private:
     DECLARE_NO_COPY_CLASS(wxDCClipper)
 };
 
     DECLARE_NO_COPY_CLASS(wxDCClipper)
 };
 

-#endif
-    // _WX_DC_H_BASE_
+#endif // _WX_DC_H_BASE_