X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/376aa62a5d8ead9dc9d0ab3af6628862a21137ed..5deedd6e79a29e5dcdcf6d94bda94b8d1c61c676:/include/wx/gtk1/dc.h?ds=sidebyside

diff --git a/include/wx/gtk1/dc.h b/include/wx/gtk1/dc.h
index 8c447ae426..b020c081bc 100644
--- a/include/wx/gtk1/dc.h
+++ b/include/wx/gtk1/dc.h
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        dc.h
+// Name:        wx/gtk1/dc.h
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -7,24 +7,20 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-
 #ifndef __GTKDCH__
 #define __GTKDCH__
 
-#ifdef __GNUG__
-#pragma interface
-#endif
-
 //-----------------------------------------------------------------------------
 // classes
 //-----------------------------------------------------------------------------
 
-class wxDC;
+class WXDLLIMPEXP_CORE wxDC;
 
 //-----------------------------------------------------------------------------
 // constants
 //-----------------------------------------------------------------------------
 
+#ifndef MM_TEXT
 #define MM_TEXT         0
 #define MM_ISOTROPIC    1
 #define MM_ANISOTROPIC  2
@@ -33,26 +29,26 @@ class wxDC;
 #define MM_TWIPS        5
 #define MM_POINTS       6
 #define MM_METRIC       7
+#endif
 
 //-----------------------------------------------------------------------------
 // wxDC
 //-----------------------------------------------------------------------------
 
-class wxDC : public wxDCBase
+class WXDLLIMPEXP_CORE wxDC : public wxDCBase
 {
 public:
     wxDC();
-    ~wxDC() { }
+    virtual ~wxDC() { }
 
+#if wxUSE_PALETTE
     void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
-
-    // the first two must be overridden and called
-    virtual void DestroyClippingRegion();
+#endif // wxUSE_PALETTE
 
     // Resolution in pixels per logical inch
     virtual wxSize GetPPI() const;
 
-    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() { }
@@ -70,65 +66,39 @@ public:
 
     virtual void ComputeScaleAndOrigin();
 
+    virtual GdkWindow* GetGDKWindow() const { return NULL; }
+
     wxCoord XDEV2LOG(wxCoord x) const
     {
-        wxCoord new_x = x - m_deviceOriginX;
-        if (new_x > 0)
-            return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
-        else
-            return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
+        return wxRound((double)(x - m_deviceOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
     }
     wxCoord XDEV2LOGREL(wxCoord x) const
     {
-        if (x > 0)
-            return (wxCoord)((double)(x) / m_scaleX + 0.5);
-        else
-            return (wxCoord)((double)(x) / m_scaleX - 0.5);
+        return wxRound((double)(x) / m_scaleX);
     }
     wxCoord YDEV2LOG(wxCoord y) const
     {
-        wxCoord new_y = y - m_deviceOriginY;
-        if (new_y > 0)
-            return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
-        else
-            return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
+        return wxRound((double)(y - m_deviceOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
     }
     wxCoord YDEV2LOGREL(wxCoord y) const
     {
-        if (y > 0)
-            return (wxCoord)((double)(y) / m_scaleY + 0.5);
-        else
-            return (wxCoord)((double)(y) / m_scaleY - 0.5);
+        return wxRound((double)(y) / m_scaleY);
     }
     wxCoord XLOG2DEV(wxCoord x) const
     {
-        wxCoord new_x = x - m_logicalOriginX;
-        if (new_x > 0)
-            return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
-        else
-            return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
+        return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX;
     }
     wxCoord XLOG2DEVREL(wxCoord x) const
     {
-        if (x > 0)
-            return (wxCoord)((double)(x) * m_scaleX + 0.5);
-        else
-            return (wxCoord)((double)(x) * m_scaleX - 0.5);
+        return wxRound((double)(x) * m_scaleX);
     }
     wxCoord YLOG2DEV(wxCoord y) const
     {
-        wxCoord new_y = y - m_logicalOriginY;
-        if (new_y > 0)
-            return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
-        else
-            return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
+        return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY;
     }
     wxCoord YLOG2DEVREL(wxCoord y) const
     {
-        if (y > 0)
-            return (wxCoord)((double)(y) * m_scaleY + 0.5);
-        else
-            return (wxCoord)((double)(y) * m_scaleY - 0.5);
+        return wxRound((double)(y) * m_scaleY);
     }
 
 protected:
@@ -147,9 +117,16 @@ public:
     bool         m_needComputeScaleX,
                  m_needComputeScaleY; // not yet used
 
-    
+
 private:
     DECLARE_ABSTRACT_CLASS(wxDC)
 };
 
+// this must be defined when wxDC::Blit() honours the DC origian and needed to
+// allow wxUniv code in univ/winuniv.cpp to work with versions of wxGTK
+// 2.3.[23]
+#ifndef wxHAS_WORKING_GTK_DC_BLIT
+    #define wxHAS_WORKING_GTK_DC_BLIT
+#endif
+
 #endif // __GTKDCH__