X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/213ad8e72cb6e838d15bf54145d661b081dca308..df08bf5ab3a0eb24d53b2c002f473799c5622bbb:/include/wx/msw/dc.h

diff --git a/include/wx/msw/dc.h b/include/wx/msw/dc.h
index 49927b84b3..ee1ab8d4ec 100644
--- a/include/wx/msw/dc.h
+++ b/include/wx/msw/dc.h
@@ -30,7 +30,7 @@ class wxDCCacheEntry: public wxObject
 public:
     wxDCCacheEntry(WXHBITMAP hBitmap, int w, int h, int depth);
     wxDCCacheEntry(WXHDC hDC, int depth);
-    ~wxDCCacheEntry();
+    virtual ~wxDCCacheEntry();
 
     WXHBITMAP   m_bitmap;
     WXHDC       m_dc;
@@ -46,7 +46,7 @@ class WXDLLEXPORT wxDC : public wxDCBase
 {
 public:
     wxDC(WXHDC hDC) { Init(); m_hDC = hDC; }
-    ~wxDC();
+    virtual ~wxDC();
 
     // implement base class pure virtuals
     // ----------------------------------
@@ -133,6 +133,14 @@ public:
     static void ClearCache();
 #endif
 
+    // 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;
+    virtual void SetLayoutDirection(wxLayoutDirection dir);
+
 protected:
     void Init()
     {
@@ -158,7 +166,7 @@ protected:
                                  wxCoord *x, wxCoord *y,
                                  wxCoord *descent = NULL,
                                  wxCoord *externalLeading = NULL,
-                                 wxFont *theFont = NULL) const;
+                                 const wxFont *theFont = NULL) const;
     virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
 
     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
@@ -206,6 +214,14 @@ protected:
                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
                         int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord);
 
+    virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest,
+                               wxCoord dstWidth, wxCoord dstHeight,
+                               wxDC *source,
+                               wxCoord xsrc, wxCoord ysrc,
+                               wxCoord srcWidth, wxCoord srcHeight,
+                               int rop = wxCOPY, bool useMask = false,
+                               wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord);
+
     // this is gnarly - we can't even call this function DoSetClippingRegion()
     // because of virtual function hiding
     virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
@@ -224,6 +240,8 @@ protected:
     virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
                                    wxCoord xoffset, wxCoord yoffset,
                                    int fillStyle = wxODDEVEN_RULE);
+    virtual wxBitmap DoGetAsBitmap(const wxRect *subrect) const 
+    { return subrect == NULL ? GetSelectedBitmap() : GetSelectedBitmap().GetSubBitmap(*subrect); }
 
 
 #if wxUSE_PALETTE
@@ -297,7 +315,11 @@ protected:
 class WXDLLEXPORT wxDCTemp : public wxDC
 {
 public:
-    wxDCTemp(WXHDC hdc) : wxDC(hdc)
+    // construct a temporary DC with the specified HDC and size (it should be
+    // specified whenever we know it for this HDC)
+    wxDCTemp(WXHDC hdc, const wxSize& size = wxDefaultSize)
+        : wxDC(hdc),
+          m_size(size)
     {
     }
 
@@ -310,15 +332,20 @@ public:
 protected:
     virtual void DoGetSize(int *w, int *h) const
     {
-        wxFAIL_MSG( _T("no way to retrieve the size of generic DC") );
+        wxASSERT_MSG( m_size.IsFullySpecified(),
+                      _T("size of this DC hadn't been set and is unknown") );
 
         if ( w )
-            *w = 0;
+            *w = m_size.x;
         if ( h )
-            *h = 0;
+            *h = m_size.y;
     }
 
 private:
+    // size of this DC must be explicitly set by SetSize() as we have no way to
+    // find it ourselves
+    const wxSize m_size;
+
     DECLARE_NO_COPY_CLASS(wxDCTemp)
 };