Prevent seg fault for older GTK+

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

diff --git a/include/wx/motif/dc.h b/include/wx/motif/dc.h
index f726723241011f2d4cf3d3e52e1dd4f6e1ae46b2..22f35f8896d157e201e3a3c2e6098a8c20676dcf 100644 (file)
--- a/include/wx/motif/dc.h
+++ b/include/wx/motif/dc.h
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        dc.h
+// Name:        wx/motif/dc.h
 // Purpose:     wxDC class
 // Author:      Julian Smart
 // Modified by:
@@ -12,10 +12,6 @@
 #ifndef _WX_DC_H_
 #define _WX_DC_H_
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma interface "dc.h"
-#endif
-
 #include "wx/pen.h"
 #include "wx/brush.h"
 #include "wx/icon.h"
@@ -47,24 +43,14 @@ class WXDLLEXPORT wxDC : public wxDCBase
 
 public:
     wxDC();
-    ~wxDC() { }
-
-    // implement base class pure virtuals
-    // ----------------------------------
+    virtual ~wxDC() { }
 
     virtual wxSize GetPPI() const;
 
-    virtual void SetMapMode(int mode);
-    virtual void SetUserScale(double x, double y);
-    virtual void SetLogicalScale(double x, double y);
-    virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
-    virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
-    virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
-
 protected:
     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
-        bool useMask = FALSE);
+        bool useMask = false);
 
     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
         wxCoord width, wxCoord height);
@@ -72,94 +58,26 @@ protected:
     virtual void DoGetSizeMM(int* width, int* height) const;
 
 public:
-    void ComputeScaleAndOrigin();
-
-    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;
-    }
-    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);
-    }
-    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;
-    }
-    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);
-    }
-    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;
-    }
+    // implementation
+    wxCoord XDEV2LOG(wxCoord x) const       { return DeviceToLogicalX(x); }
+    wxCoord XDEV2LOGREL(wxCoord x) const    { return DeviceToLogicalXRel(x); }
+    wxCoord YDEV2LOG(wxCoord y) const       { return DeviceToLogicalY(y); }
+    wxCoord YDEV2LOGREL(wxCoord y) const    { return DeviceToLogicalYRel(y); }
+    wxCoord XLOG2DEV(wxCoord x) const       { return LogicalToDeviceX(x); }
+    wxCoord XLOG2DEVREL(wxCoord x) const    { return LogicalToDeviceXRel(x); }
+    wxCoord YLOG2DEV(wxCoord y) const       { return LogicalToDeviceY(y); }
+    wxCoord YLOG2DEVREL(wxCoord y) const    { return LogicalToDeviceYRel(y); }
+    
     // Without device translation, for backing pixmap purposes
     wxCoord XLOG2DEV_2(wxCoord x) const
     {
-        wxCoord new_x = x - m_logicalOriginX;
-        if (new_x > 0)
-            return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX;
-        else
-            return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX;
-    }
-    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);
-    }
-    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)(x - m_logicalOriginX) * m_scaleX) * m_signX;
     }
-    // Without device translation, for backing pixmap purposes
     wxCoord YLOG2DEV_2(wxCoord y) const
     {
-        wxCoord new_y = y - m_logicalOriginY;
-        if (new_y > 0)
-            return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY;
-        else
-            return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY;
-    }
-    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_logicalOriginY) * m_scaleY) * m_signY;
     }
 
-public:
-    // not sure what for, but what is a mm on a screen you don't know the size of?
-    double       m_mm_to_pix_x,m_mm_to_pix_y;
-
-    // recompute scale?
-    bool         m_needComputeScaleX, m_needComputeScaleY;
-
 };
 
 #endif