X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/463c1fa1a916b1a262023601f3913fb12c4bcc8f..d4ffe273ca70deb8e2cff7be9a07b0640e24bee0:/include/wx/gtk/dc.h

diff --git a/include/wx/gtk/dc.h b/include/wx/gtk/dc.h
index 7870f30bd5..581fc16482 100644
--- a/include/wx/gtk/dc.h
+++ b/include/wx/gtk/dc.h
@@ -4,7 +4,7 @@
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
-// Licence:   	wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 
@@ -34,14 +34,14 @@ class wxDC;
 // constants
 //-----------------------------------------------------------------------------
 
-#define MM_TEXT			0
-#define MM_ISOTROPIC		1
-#define MM_ANISOTROPIC		2
-#define MM_LOMETRIC		3
-#define MM_HIMETRIC		4
-#define MM_TWIPS		5
-#define MM_POINTS		6
-#define MM_METRIC		7
+#define MM_TEXT      0
+#define MM_ISOTROPIC    1
+#define MM_ANISOTROPIC    2
+#define MM_LOMETRIC    3
+#define MM_HIMETRIC    4
+#define MM_TWIPS    5
+#define MM_POINTS    6
+#define MM_METRIC    7
 
 //-----------------------------------------------------------------------------
 // global variables
@@ -59,13 +59,13 @@ class wxDC: public wxObject
 
 public:
 
-  wxDC(void);
-  ~wxDC(void);
-    
-  void BeginDrawing(void) {};
-  void EndDrawing(void) {};
-    
-  virtual bool Ok(void) const;
+  wxDC();
+  ~wxDC();
+
+  virtual void BeginDrawing() {}
+  virtual void EndDrawing() {}
+
+  virtual bool Ok() const;
 
   virtual void FloodFill( long x, long y, const wxColour& col, int style=wxFLOOD_SURFACE ) = 0;
   inline void FloodFill(const wxPoint& pt, const wxColour& col, int style=wxFLOOD_SURFACE)
@@ -104,14 +104,14 @@ public:
       DrawPoint(pt.x, pt.y);
   }
   virtual void DrawPoint( wxPoint& point );
-    
+
   virtual void DrawLines( int n, wxPoint points[], long xoffset = 0, long yoffset = 0 ) = 0;
   virtual void DrawLines( wxList *points, long xoffset = 0, long yoffset = 0 );
-  virtual void DrawPolygon( int n, wxPoint points[], long xoffset = 0, long yoffset = 0, 
+  virtual void DrawPolygon( int n, wxPoint points[], long xoffset = 0, long yoffset = 0,
                               int fillStyle=wxODDEVEN_RULE ) = 0;
-  virtual void DrawPolygon( wxList *lines, long xoffset = 0, long yoffset = 0, 
+  virtual void DrawPolygon( wxList *lines, long xoffset = 0, long yoffset = 0,
                               int fillStyle=wxODDEVEN_RULE );
-    
+
   virtual void DrawRectangle( long x, long y, long width, long height ) = 0;
   inline void DrawRectangle(const wxPoint& pt, const wxSize& sz)
   {
@@ -139,11 +139,11 @@ public:
   {
       DrawEllipse(rect.x, rect.y, rect.width, rect.height);
   }
-    
+
   virtual void DrawSpline( long x1, long y1, long x2, long y2, long x3, long y3 );
   virtual void DrawSpline( wxList *points ) = 0;
   virtual void DrawSpline( int n, wxPoint points[] );
-    
+
   virtual bool CanDrawBitmap(void) const = 0;
   virtual void DrawIcon( const wxIcon &icon, long x, long y ) = 0;
   inline void DrawIcon( const wxIcon& icon, const wxPoint& pt )
@@ -155,18 +155,18 @@ public:
   {
       DrawBitmap(bitmap, pt.x, pt.y, useMask );
   }
-  virtual bool Blit( long xdest, long ydest, 
+  virtual bool Blit( long xdest, long ydest,
                      long width, long height,
-                     wxDC *source, 
-		     long xsrc, long ysrc, 
-		     int logical_func=wxCOPY, 
-		     bool useMask=FALSE ) = 0;
-  inline bool Blit( const wxPoint& destPt, 
+                     wxDC *source,
+         long xsrc, long ysrc,
+         int logical_func=wxCOPY,
+         bool useMask=FALSE ) = 0;
+  inline bool Blit( const wxPoint& destPt,
                     const wxSize& sz,
-                    wxDC *source, 
-		    const wxPoint& srcPt, 
-		    int rop = wxCOPY, 
-		    bool useMask=FALSE)
+                    wxDC *source,
+        const wxPoint& srcPt,
+        int rop = wxCOPY,
+        bool useMask=FALSE)
   {
     return Blit(destPt.x, destPt.y, sz.x, sz.y, source, srcPt.x, srcPt.y, rop, useMask);
   }
@@ -177,81 +177,88 @@ public:
       DrawText(text, pt.x, pt.y, use16bit);
   }
   virtual bool CanGetTextExtent(void) const = 0;
-  virtual void GetTextExtent( const wxString &string, 
+  virtual void GetTextExtent( const wxString &string,
                               long *width, long *height,
-                              long *descent = (long *) NULL, 
-			      long *externalLeading = (long *) NULL,
-                              wxFont *theFont = (wxFont *) NULL, 
-			      bool use16 = FALSE ) = 0;
+                              long *descent = (long *) NULL,
+            long *externalLeading = (long *) NULL,
+                              wxFont *theFont = (wxFont *) NULL,
+            bool use16 = FALSE ) = 0;
   virtual long GetCharWidth(void) = 0;
   virtual long GetCharHeight(void) = 0;
-    
-  virtual void Clear(void) = 0;
-            
+
+  virtual void Clear() = 0;
+
   virtual void SetFont( const wxFont &font ) = 0;
-  virtual wxFont *GetFont(void) { return &m_font; };
-    
+  virtual wxFont& GetFont() const { return (wxFont&)m_font; };
+
   virtual void SetPen( const wxPen &pen ) = 0;
-  virtual wxPen *GetPen(void) { return &m_pen; };
-    
+  virtual wxPen& GetPen() const { return (wxPen&)m_pen; };
+
   virtual void SetBrush( const wxBrush &brush ) = 0;
-  virtual wxBrush *GetBrush(void) { return &m_brush; };
+  virtual wxBrush& GetBrush() const { return (wxBrush&)m_brush; };
 
   virtual void SetBackground( const wxBrush &brush ) = 0;
-  virtual wxBrush *GetBackground(void) { return &m_backgroundBrush; };
+  virtual wxBrush& GetBackground() const { return (wxBrush&)m_backgroundBrush; };
 
   virtual void SetLogicalFunction( int function ) = 0;
-  virtual int GetLogicalFunction(void) { return m_logicalFunction; };
-    
+  virtual int GetLogicalFunction() { return m_logicalFunction; };
+
   virtual void SetTextForeground( const wxColour &col );
   virtual void SetTextBackground( const wxColour &col );
-  virtual wxColour& GetTextBackground(void) const { return (wxColour&)m_textBackgroundColour; };
-  virtual wxColour& GetTextForeground(void) const { return (wxColour&)m_textForegroundColour; };
-    
+  virtual wxColour& GetTextBackground() const { return (wxColour&)m_textBackgroundColour; };
+  virtual wxColour& GetTextForeground() const { return (wxColour&)m_textForegroundColour; };
+
   virtual void SetBackgroundMode( int mode ) = 0;
-  virtual int GetBackgroundMode(void) { return m_backgroundMode; };
-    
+  virtual int GetBackgroundMode() { return m_backgroundMode; };
+
   virtual void SetPalette( const wxPalette& palette ) = 0;
   void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
-    
+
     // the first two must be overridden and called
   virtual void DestroyClippingRegion(void);
   virtual void SetClippingRegion( long x, long y, long width, long height );
   virtual void GetClippingBox( long *x, long *y, long *width, long *height ) const;
   virtual void SetClippingRegion( const wxRegion &region  ) = 0;
-    
-  virtual inline long MinX(void) const { return m_minX; }
-  virtual inline long MaxX(void) const { return m_maxX; }
-  virtual inline long MinY(void) const { return m_minY; }
-  virtual inline long MaxY(void) const { return m_maxY; }
 
+  virtual long MinX() const { return m_minX; }
+  virtual long MaxX() const { return m_maxX; }
+  virtual long MinY() const { return m_minY; }
+  virtual long MaxY() const { return m_maxY; }
+
+  // Size in device units
   virtual void GetSize( int* width, int* height ) const;
   inline wxSize GetSize(void) const { int w, h; GetSize(&w, &h); return wxSize(w, h); }
-  virtual void GetSizeMM( long* width, long* height ) const;
-    
-  virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; };
-  virtual void EndDoc(void) {};
-  virtual void StartPage(void) {};
-  virtual void EndPage(void) {};
-    
+
+  // Size in millimetres
+  virtual void GetSizeMM( int* width, int* height ) const;
+  inline wxSize GetSizeMM(void) const { int w, h; GetSizeMM(&w, &h); return wxSize(w, h); }
+
+  // Resolution in pixels per logical inch
+  virtual wxSize GetPPI(void) const;
+
+  virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; }
+  virtual void EndDoc() {}
+  virtual void StartPage() {}
+  virtual void EndPage() {}
+
   virtual void SetMapMode( int mode );
   virtual int GetMapMode(void) const { return m_mappingMode; };
-    
+
   virtual void SetUserScale( double x, double y );
   virtual void GetUserScale( double *x, double *y );
   virtual void SetLogicalScale( double x, double y );
   virtual void GetLogicalScale( double *x, double *y );
-    
+
   virtual void SetLogicalOrigin( long x, long y );
   virtual void GetLogicalOrigin( long *x, long *y );
   virtual void SetDeviceOrigin( long x, long y );
   virtual void GetDeviceOrigin( long *x, long *y );
 
   virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
-    
-  virtual void SetOptimization( bool WXUNUSED(optimize) ) {};
-  virtual bool GetOptimization(void) { return m_optimize; };
-    
+
+  virtual void SetOptimization( bool WXUNUSED(optimize) ) {}
+  virtual bool GetOptimization() { return m_optimize; }
+
   virtual long DeviceToLogicalX(long x) const;
   virtual long DeviceToLogicalY(long y) const;
   virtual long DeviceToLogicalXRel(long x) const;
@@ -262,114 +269,113 @@ public:
   virtual long LogicalToDeviceYRel(long y) const;
 
   // implementation
-  
+
     void CalcBoundingBox( long x, long y );
-    void ComputeScaleAndOrigin(void);
-    
+    void ComputeScaleAndOrigin();
+
     long XDEV2LOG(long x) const
-	{
-	  long new_x = x - m_deviceOriginX;
-	  if (new_x > 0) 
-	    return (long)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
-	  else
-	    return (long)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
-	}
+  {
+    long new_x = x - m_deviceOriginX;
+    if (new_x > 0)
+      return (long)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
+    else
+      return (long)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
+  }
     long XDEV2LOGREL(long x) const
-	{ 
-	  if (x > 0) 
-	    return (long)((double)(x) / m_scaleX + 0.5);
-	  else
-	    return (long)((double)(x) / m_scaleX - 0.5);
-	}
+  {
+    if (x > 0)
+      return (long)((double)(x) / m_scaleX + 0.5);
+    else
+      return (long)((double)(x) / m_scaleX - 0.5);
+  }
     long YDEV2LOG(long y) const
-	{
-	  long new_y = y - m_deviceOriginY;
-	  if (new_y > 0)
-	    return (long)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
-	  else
-	    return (long)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
-	}
+  {
+    long new_y = y - m_deviceOriginY;
+    if (new_y > 0)
+      return (long)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
+    else
+      return (long)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
+  }
     long YDEV2LOGREL(long y) const
-	{ 
-	  if (y > 0)
-	    return (long)((double)(y) / m_scaleY + 0.5);
-	  else
-	    return (long)((double)(y) / m_scaleY - 0.5);
-	}
+  {
+    if (y > 0)
+      return (long)((double)(y) / m_scaleY + 0.5);
+    else
+      return (long)((double)(y) / m_scaleY - 0.5);
+  }
     long XLOG2DEV(long x) const
-	{ 
-	  long new_x = x - m_logicalOriginX;
-	  if (new_x > 0)
-	    return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
-	  else
-	    return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
-	}
+  {
+    long new_x = x - m_logicalOriginX;
+    if (new_x > 0)
+      return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
+    else
+      return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
+  }
     long XLOG2DEVREL(long x) const
-	{ 
-	  if (x > 0)
-	    return (long)((double)(x) * m_scaleX + 0.5);
-	  else
-	    return (long)((double)(x) * m_scaleX - 0.5);
-	}
+  {
+    if (x > 0)
+      return (long)((double)(x) * m_scaleX + 0.5);
+    else
+      return (long)((double)(x) * m_scaleX - 0.5);
+  }
     long YLOG2DEV(long y) const
-	{
-	  long new_y = y - m_logicalOriginY;
-	  if (new_y > 0)
-	    return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
-	  else
-	    return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
-	}
+  {
+    long new_y = y - m_logicalOriginY;
+    if (new_y > 0)
+      return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
+    else
+      return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
+  }
     long YLOG2DEVREL(long y) const
-	{ 
-	  if (y > 0)
-	    return (long)((double)(y) * m_scaleY + 0.5);
-	  else
-	    return (long)((double)(y) * m_scaleY - 0.5);
-	}
-  
-	
+  {
+    if (y > 0)
+      return (long)((double)(y) * m_scaleY + 0.5);
+    else
+      return (long)((double)(y) * m_scaleY - 0.5);
+  }
+
+
   public:
-    
+
     bool         m_ok;
     bool         m_colour;
-    
+
     // not sure, what these mean
     bool         m_clipping;      // Is clipping on right now ?
     bool         m_isInteractive; // Is GetPixel possible ?
     bool         m_autoSetting;   // wxMSW only ?
     bool         m_dontDelete;    // wxMSW only ?
     bool         m_optimize;      // wxMSW only ?
-    wxString     m_filename;      // Not sure where this belongs.
-    
+
     wxPen        m_pen;
     wxBrush      m_brush;
     wxBrush      m_backgroundBrush;
     wxColour     m_textForegroundColour;
     wxColour     m_textBackgroundColour;
     wxFont       m_font;
-    
+
     int          m_logicalFunction;
     int          m_backgroundMode;
     int          m_textAlignment;    // gone in wxWin 2.0 ?
-    
+
     int          m_mappingMode;
-    
+
     // 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; 
-    
-    long         m_deviceOriginX,m_deviceOriginY; 
-    
+    double       m_mm_to_pix_x,m_mm_to_pix_y;
+
+    long         m_deviceOriginX,m_deviceOriginY;
+
     long         m_logicalOriginX,m_logicalOriginY;                 // User defined.
 
     double       m_scaleX,m_scaleY;
     double       m_logicalScaleX,m_logicalScaleY;
     double       m_userScaleX,m_userScaleY;
     long         m_signX,m_signY;
-    
+
     bool         m_needComputeScaleX,m_needComputeScaleY;         // not yet used
-    
+
     float        m_scaleFactor;  // wxPSDC wants to have this. Will disappear.
-    
+
     long         m_clipX1,m_clipY1,m_clipX2,m_clipY2;
     long         m_minX,m_maxX,m_minY,m_maxY;
 };