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[wxWidgets.git] / src / gtk1 / dcclient.cpp

diff --git a/src/gtk1/dcclient.cpp b/src/gtk1/dcclient.cpp
index c4b2b3ee143f8f7a5a558b58bfac63c327a7ac26..84d0cebf07aecfdb9e36265829d18f9ff460f9f2 100644 (file)
--- a/src/gtk1/dcclient.cpp
+++ b/src/gtk1/dcclient.cpp
@@ -28,7 +28,7 @@
 #define  num_hatches 6
 
 static GdkPixmap  *hatches[num_hatches];
 #define  num_hatches 6
 
 static GdkPixmap  *hatches[num_hatches];

-static GdkPixmap **hatch_bitmap = NULL;
+static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL;

 
 //-----------------------------------------------------------------------------
 // constants
 
 //-----------------------------------------------------------------------------
 // constants


@@ -87,10 +87,21 @@ IMPLEMENT_DYNAMIC_CLASS(wxPaintDC,wxDC)
 
 wxPaintDC::wxPaintDC(void)
 {
 
 wxPaintDC::wxPaintDC(void)
 {

-};
+  m_penGC = (GdkGC *) NULL;
+  m_brushGC = (GdkGC *) NULL;
+  m_textGC = (GdkGC *) NULL;
+  m_bgGC = (GdkGC *) NULL;
+  m_cmap = (GdkColormap *) NULL;
+}

 
 wxPaintDC::wxPaintDC( wxWindow *window )
 {
 
 wxPaintDC::wxPaintDC( wxWindow *window )
 {

+  m_penGC = (GdkGC *) NULL;
+  m_brushGC = (GdkGC *) NULL;
+  m_textGC = (GdkGC *) NULL;
+  m_bgGC = (GdkGC *) NULL;
+  m_cmap = (GdkColormap *) NULL;
+  

   if (!window) return;
   GtkWidget *widget = window->m_wxwindow;
   if (!widget) return;
   if (!window) return;
   GtkWidget *widget = window->m_wxwindow;
   if (!widget) return;


@@ -104,42 +115,47 @@ wxPaintDC::wxPaintDC( wxWindow *window )
   m_isDrawable = TRUE;
         
   SetUpDC();
   m_isDrawable = TRUE;
         
   SetUpDC();

-  
-  long x = 0;
-  long y = 0;
-  window->GetDrawingOffset( &x, &y );
-  SetInternalDeviceOrigin( -x, -y );
-};
+}

 
 wxPaintDC::~wxPaintDC(void)
 {
 
 wxPaintDC::~wxPaintDC(void)
 {

-};
+}

 
 void wxPaintDC::FloodFill( long WXUNUSED(x1), long WXUNUSED(y1), 
   wxColour *WXUNUSED(col), int WXUNUSED(style) )
 {
 
 void wxPaintDC::FloodFill( long WXUNUSED(x1), long WXUNUSED(y1), 
   wxColour *WXUNUSED(col), int WXUNUSED(style) )
 {

-};
+  wxFAIL_MSG( "wxPaintDC::FloodFill not implemented" );
+}

 
 bool wxPaintDC::GetPixel( long WXUNUSED(x1), long WXUNUSED(y1), wxColour *WXUNUSED(col) ) const
 {
 
 bool wxPaintDC::GetPixel( long WXUNUSED(x1), long WXUNUSED(y1), wxColour *WXUNUSED(col) ) const
 {

+  wxFAIL_MSG( "wxPaintDC::GetPixel not implemented" );

   return FALSE;
   return FALSE;

-};
+}

 
 void wxPaintDC::DrawLine( long x1, long y1, long x2, long y2 )
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::DrawLine( long x1, long y1, long x2, long y2 )
 {
   if (!Ok()) return;
   

+  // FIXME: is this right? Causes a segfault on my system and doesn't
+  // seem right: wxPaintDC does not inherit from wxMemoryDC
+  //   if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   if (m_pen.GetStyle() != wxTRANSPARENT)
   {
     gdk_draw_line( m_window, m_penGC, 
       XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) );
   if (m_pen.GetStyle() != wxTRANSPARENT)
   {
     gdk_draw_line( m_window, m_penGC, 
       XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) );

-  };
-};
+  }
+}

 
 void wxPaintDC::CrossHair( long x, long y )
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::CrossHair( long x, long y )
 {
   if (!Ok()) return;
   

+  // FIXME: is this right? Causes a segfault on my system and doesn't
+  // seem right: wxPaintDC does not inherit from wxMemoryDC
+  // if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   if (m_pen.GetStyle() != wxTRANSPARENT)
   {
     int w = 0;
   if (m_pen.GetStyle() != wxTRANSPARENT)
   {
     int w = 0;


@@ -151,13 +167,15 @@ void wxPaintDC::CrossHair( long x, long y )
       0, yy, XLOG2DEVREL(w), yy );
     gdk_draw_line( m_window, m_penGC,
       xx, 0, xx, YLOG2DEVREL(h) );
       0, yy, XLOG2DEVREL(w), yy );
     gdk_draw_line( m_window, m_penGC,
       xx, 0, xx, YLOG2DEVREL(h) );

-  };
-};
+  }
+}

 
 void wxPaintDC::DrawArc( long x1, long y1, long x2, long y2, double xc, double yc )
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::DrawArc( long x1, long y1, long x2, long y2, double xc, double yc )
 {
   if (!Ok()) return;
   

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   long xx1 = XLOG2DEV(x1); 
   long yy1 = YLOG2DEV(y1);
   long xx2 = XLOG2DEV(x2); 
   long xx1 = XLOG2DEV(x1); 
   long yy1 = YLOG2DEV(y1);
   long xx2 = XLOG2DEV(x2); 


@@ -188,7 +206,7 @@ void wxPaintDC::DrawArc( long x1, long y1, long x2, long y2, double xc, double y
     radius2 = (xx2 - xxc == 0) ?
            (yy2 - yyc < 0) ? 90.0 : -90.0 :
            -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG;
     radius2 = (xx2 - xxc == 0) ?
            (yy2 - yyc < 0) ? 90.0 : -90.0 :
            -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG;

-  };
+  }

   long alpha1 = long(radius1 * 64.0);
   long alpha2 = long((radius2 - radius1) * 64.0);
   while (alpha2 <= 0) alpha2 += 360*64;
   long alpha1 = long(radius1 * 64.0);
   long alpha2 = long((radius2 - radius1) * 64.0);
   while (alpha2 <= 0) alpha2 += 360*64;


@@ -200,12 +218,14 @@ void wxPaintDC::DrawArc( long x1, long y1, long x2, long y2, double xc, double y
   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
   
   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
   

-};
+}

 
 void wxPaintDC::DrawEllipticArc( long x, long y, long width, long height, double sa, double ea )
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::DrawEllipticArc( long x, long y, long width, long height, double sa, double ea )
 {
   if (!Ok()) return;
   

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   long xx = XLOG2DEV(x);    
   long yy = YLOG2DEV(y);
   long ww = m_signX * XLOG2DEVREL(width); 
   long xx = XLOG2DEV(x);    
   long yy = YLOG2DEV(y);
   long ww = m_signX * XLOG2DEVREL(width); 


@@ -222,20 +242,24 @@ void wxPaintDC::DrawEllipticArc( long x, long y, long width, long height, double
   
   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, start, end );
   
   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, start, end );

-};
+}

 
 void wxPaintDC::DrawPoint( long x, long y )
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::DrawPoint( long x, long y )
 {
   if (!Ok()) return;
   

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) );
   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) );

-};
+}

 
 void wxPaintDC::DrawLines( int n, wxPoint points[], long xoffset, long yoffset )
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::DrawLines( int n, wxPoint points[], long xoffset, long yoffset )
 {
   if (!Ok()) return;
   

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   if (m_pen.GetStyle() == wxTRANSPARENT) return;
   
   for (int i = 0; i < n-1; i++)
   if (m_pen.GetStyle() == wxTRANSPARENT) return;
   
   for (int i = 0; i < n-1; i++)


@@ -245,13 +269,15 @@ void wxPaintDC::DrawLines( int n, wxPoint points[], long xoffset, long yoffset )
     long y1 = YLOG2DEV(points[i].y + yoffset);     // oh, what a waste
     long y2 = YLOG2DEV(points[i+1].y + yoffset);
     gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
     long y1 = YLOG2DEV(points[i].y + yoffset);     // oh, what a waste
     long y2 = YLOG2DEV(points[i+1].y + yoffset);
     gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );

-  };
-};
+  }
+}

 
 void wxPaintDC::DrawLines( wxList *points, long xoffset, long yoffset )
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::DrawLines( wxList *points, long xoffset, long yoffset )
 {
   if (!Ok()) return;
   

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   if (m_pen.GetStyle() == wxTRANSPARENT) return;
   
   wxNode *node = points->First();
   if (m_pen.GetStyle() == wxTRANSPARENT) return;
   
   wxNode *node = points->First();


@@ -265,25 +291,76 @@ void wxPaintDC::DrawLines( wxList *points, long xoffset, long yoffset )
     long y2 = YLOG2DEV(npoint->y + yoffset);
     gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
     node = node->Next();
     long y2 = YLOG2DEV(npoint->y + yoffset);
     gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
     node = node->Next();

-  };
-};
+  }
+}

 
 

-void wxPaintDC::DrawPolygon( int WXUNUSED(n), wxPoint WXUNUSED(points)[], 
-  long WXUNUSED(xoffset), long WXUNUSED(yoffset), int WXUNUSED(fillStyle) )
+void wxPaintDC::DrawPolygon( int n, wxPoint points[], long xoffset, long yoffset, int WXUNUSED(fillStyle) )

 {
   if (!Ok()) return;
 {
   if (!Ok()) return;

-};
+  
+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  
+   if (!n) return;    // Nothing to draw
+   GdkPoint *gdkpoints = new GdkPoint[n+1];
+   int i;
+   for (i = 0 ; i < n ; i++)
+     {
+       gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset);
+       gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset);
+     }
+   if (m_brush.GetStyle() != wxTRANSPARENT)
+     gdk_draw_polygon (m_window, m_brushGC, TRUE, gdkpoints, n);
+   // To do: Fillstyle
+   if (m_pen.GetStyle() != wxTRANSPARENT)
+     for (i = 0 ; i < n ; i++)
+       gdk_draw_line( m_window, m_penGC, 
+                    gdkpoints[i%n].x,
+                    gdkpoints[i%n].y,
+                    gdkpoints[(i+1)%n].x,
+                    gdkpoints[(i+1)%n].y);
+   delete[] gdkpoints;
+}

 
 

-void wxPaintDC::DrawPolygon( wxList *WXUNUSED(lines), long WXUNUSED(xoffset), 
-                             long WXUNUSED(yoffset), int WXUNUSED(fillStyle) )
+void wxPaintDC::DrawPolygon( wxList *lines, long xoffset, long yoffset, int WXUNUSED(fillStyle))

 {
   if (!Ok()) return;
 {
   if (!Ok()) return;

-};
+  
+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  
+   int n = lines->Number();
+   GdkPoint *gdkpoints = new GdkPoint[n];
+   wxNode *node = lines->First();
+   int cnt=0;
+   while (node)
+     {
+       wxPoint *p = (wxPoint *) node->Data();
+       gdkpoints[cnt].x = XLOG2DEV(p->x + xoffset);
+       gdkpoints[cnt].y = YLOG2DEV(p->y + yoffset);
+       node = node->Next();
+       cnt++;
+     }
+   if (m_brush.GetStyle() != wxTRANSPARENT)
+     gdk_draw_polygon (m_window, m_brushGC, TRUE, gdkpoints, n);
+   // To do: Fillstyle
+   if (m_pen.GetStyle() != wxTRANSPARENT)
+     {
+       int i;
+       for (i = 0 ; i < n ; i++)
+       gdk_draw_line( m_window, m_penGC, 
+                      gdkpoints[i%n].x,
+                      gdkpoints[i%n].y,
+                      gdkpoints[(i+1)%n].x,
+                      gdkpoints[(i+1)%n].y);
+     }
+   delete[] gdkpoints;
+}

 
 void wxPaintDC::DrawRectangle( long x, long y, long width, long height )
 {
   if (!Ok()) return;
 
 
 void wxPaintDC::DrawRectangle( long x, long y, long width, long height )
 {
   if (!Ok()) return;
 

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   long xx = XLOG2DEV(x);
   long yy = YLOG2DEV(y);
   long ww = m_signX * XLOG2DEVREL(width);
   long xx = XLOG2DEV(x);
   long yy = YLOG2DEV(y);
   long ww = m_signX * XLOG2DEVREL(width);


@@ -301,12 +378,14 @@ void wxPaintDC::DrawRectangle( long x, long y, long width, long height )
     
   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-1, hh-1 );
     
   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-1, hh-1 );

-};
+}

 
 void wxPaintDC::DrawRoundedRectangle( long x, long y, long width, long height, double radius )
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::DrawRoundedRectangle( long x, long y, long width, long height, double radius )
 {
   if (!Ok()) return;
   

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
   
   long xx = XLOG2DEV(x);    
   if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
   
   long xx = XLOG2DEV(x);    


@@ -353,7 +432,7 @@ void wxPaintDC::DrawRoundedRectangle( long x, long y, long width, long height, d
     gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
     gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
     gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
     gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
     gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
     gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );

-  };
+  }

   
   if (m_pen.GetStyle() != wxTRANSPARENT)
   {
   
   if (m_pen.GetStyle() != wxTRANSPARENT)
   {


@@ -365,13 +444,15 @@ void wxPaintDC::DrawRoundedRectangle( long x, long y, long width, long height, d
     gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
     gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
     gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
     gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
     gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
     gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );

-  };
-};
+  }
+}

 
 void wxPaintDC::DrawEllipse( long x, long y, long width, long height )
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::DrawEllipse( long x, long y, long width, long height )
 {
   if (!Ok()) return;
   

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   long xx = XLOG2DEV(x);    
   long yy = YLOG2DEV(y);
   long ww = m_signX * XLOG2DEVREL(width); 
   long xx = XLOG2DEV(x);    
   long yy = YLOG2DEV(y);
   long ww = m_signX * XLOG2DEVREL(width); 


@@ -386,12 +467,12 @@ void wxPaintDC::DrawEllipse( long x, long y, long width, long height )
   
   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 );
   
   if (m_pen.GetStyle() != wxTRANSPARENT)
     gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 );

-};
+}

 
 bool wxPaintDC::CanDrawBitmap(void) const
 {
   return TRUE;
 
 bool wxPaintDC::CanDrawBitmap(void) const
 {
   return TRUE;

-};
+}

 
 void wxPaintDC::DrawIcon( const wxIcon &icon, long x, long y, bool useMask )
 {
 
 void wxPaintDC::DrawIcon( const wxIcon &icon, long x, long y, bool useMask )
 {


@@ -399,48 +480,51 @@ void wxPaintDC::DrawIcon( const wxIcon &icon, long x, long y, bool useMask )
   
   if (!icon.Ok()) return;
   
   
   if (!icon.Ok()) return;
   

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   int xx = XLOG2DEV(x);
   int yy = YLOG2DEV(y);
   
   int xx = XLOG2DEV(x);
   int yy = YLOG2DEV(y);
   

-  GdkBitmap *mask = NULL;
+  GdkBitmap *mask = (GdkBitmap *) NULL;

   if (icon.GetMask()) mask = icon.GetMask()->GetBitmap();
     
   if (useMask && mask) 
   {
     gdk_gc_set_clip_mask( m_penGC, mask );
     gdk_gc_set_clip_origin( m_penGC, xx, yy );
   if (icon.GetMask()) mask = icon.GetMask()->GetBitmap();
     
   if (useMask && mask) 
   {
     gdk_gc_set_clip_mask( m_penGC, mask );
     gdk_gc_set_clip_origin( m_penGC, xx, yy );

-  };
+  }

   
   GdkPixmap *pm = icon.GetPixmap();
   gdk_draw_pixmap( m_window, m_penGC, pm, 0, 0, xx, yy, -1, -1 );
   
   if (useMask && mask) 
   {
   
   GdkPixmap *pm = icon.GetPixmap();
   gdk_draw_pixmap( m_window, m_penGC, pm, 0, 0, xx, yy, -1, -1 );
   
   if (useMask && mask) 
   {

-    gdk_gc_set_clip_mask( m_penGC, NULL );
+    gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL );

     gdk_gc_set_clip_origin( m_penGC, 0, 0 );
     gdk_gc_set_clip_origin( m_penGC, 0, 0 );

-  };
-};
+  }
+}

 
 bool wxPaintDC::Blit( long xdest, long ydest, long width, long height,
        wxDC *source, long xsrc, long ysrc, int WXUNUSED(logical_func), bool WXUNUSED(useMask) )
 {
   if (!Ok()) return FALSE;
   
 
 bool wxPaintDC::Blit( long xdest, long ydest, long width, long height,
        wxDC *source, long xsrc, long ysrc, int WXUNUSED(logical_func), bool WXUNUSED(useMask) )
 {
   if (!Ok()) return FALSE;
   

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   // CMB 20/5/98: add blitting of bitmaps
   if (source->IsKindOf(CLASSINFO(wxMemoryDC)))
   {
     wxMemoryDC* srcDC = (wxMemoryDC*)source;
   // CMB 20/5/98: add blitting of bitmaps
   if (source->IsKindOf(CLASSINFO(wxMemoryDC)))
   {
     wxMemoryDC* srcDC = (wxMemoryDC*)source;

-       GdkBitmap* bmap = srcDC->m_selected.GetBitmap();
+    GdkBitmap* bmap = srcDC->m_selected.GetBitmap();

     if (bmap)
     {
     if (bmap)
     {

-      gdk_draw_bitmap (
-          m_window,
-          m_textGC,
-          bmap,
-          source->DeviceToLogicalX(xsrc), source->DeviceToLogicalY(ysrc),
-          XLOG2DEV(xdest), YLOG2DEV(ydest),
-          source->DeviceToLogicalXRel(width), source->DeviceToLogicalYRel(height)
-          );
+      gdk_draw_bitmap( m_window, m_textGC, bmap,
+          source->DeviceToLogicalX(xsrc), 
+         source->DeviceToLogicalY(ysrc),
+          XLOG2DEV(xdest), 
+         YLOG2DEV(ydest),
+          source->DeviceToLogicalXRel(width), 
+         source->DeviceToLogicalYRel(height) );

       return TRUE;
     }
   }
       return TRUE;
     }
   }


@@ -461,13 +545,14 @@ bool wxPaintDC::Blit( long xdest, long ydest, long width, long height,
 */
     
   return TRUE;
 */
     
   return TRUE;

-};
+}

 
 

-void wxPaintDC::DrawText( const wxString &text, long x, long y, bool
-WXUNUSED(use16) )
+void wxPaintDC::DrawText( const wxString &text, long x, long y, bool WXUNUSED(use16) )

 {
   if (!Ok()) return;
 
 {
   if (!Ok()) return;
 

+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  

   GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
   x = XLOG2DEV(x);
   GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
   x = XLOG2DEV(x);


@@ -494,47 +579,50 @@ WXUNUSED(use16) )
     if (font->descent > 0) ul_y++;
     gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y);
   }
     if (font->descent > 0) ul_y++;
     gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y);
   }

-};
-
-
+}

 
 bool wxPaintDC::CanGetTextExtent(void) const
 {
   return TRUE;
 
 bool wxPaintDC::CanGetTextExtent(void) const
 {
   return TRUE;

-};
+}

 
 void wxPaintDC::GetTextExtent( const wxString &string, long *width, long *height,
 
 void wxPaintDC::GetTextExtent( const wxString &string, long *width, long *height,

-                     long *WXUNUSED(descent), long *WXUNUSED(externalLeading),
-                     wxFont *WXUNUSED(theFont), bool WXUNUSED(use16) )
+                     long *descent, long *externalLeading,
+                     wxFont *theFont, bool WXUNUSED(use16) )

 {
   if (!Ok()) return;
   
 {
   if (!Ok()) return;
   

-  GdkFont *font = m_font.GetInternalFont( m_scaleY );
+  wxFont fontToUse = m_font;
+  if (theFont) fontToUse = *theFont;
+  
+  GdkFont *font = fontToUse.GetInternalFont( m_scaleY );

   if (width) (*width) = long(gdk_string_width( font, string ) / m_scaleX);
   if (height) (*height) = long((font->ascent + font->descent) / m_scaleY);
   if (width) (*width) = long(gdk_string_width( font, string ) / m_scaleX);
   if (height) (*height) = long((font->ascent + font->descent) / m_scaleY);

-};
+  if (descent) (*descent) = long(font->descent / m_scaleY);
+  if (externalLeading) (*externalLeading) = 0;  // ??
+}

 
 long wxPaintDC::GetCharWidth(void)
 {
   if (!Ok()) return 0;
   
   GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
 long wxPaintDC::GetCharWidth(void)
 {
   if (!Ok()) return 0;
   
   GdkFont *font = m_font.GetInternalFont( m_scaleY );

-  return gdk_string_width( font, "H" );
-};
+  return long(gdk_string_width( font, "H" ) / m_scaleX);
+}

 
 long wxPaintDC::GetCharHeight(void)
 {
   if (!Ok()) return 0;
   
   GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
 long wxPaintDC::GetCharHeight(void)
 {
   if (!Ok()) return 0;
   
   GdkFont *font = m_font.GetInternalFont( m_scaleY );

-  return font->ascent + font->descent;
-};
+  return long((font->ascent + font->descent) / m_scaleY);
+}

 
 void wxPaintDC::Clear(void)
 {
   if (!Ok()) return;
   
 
 void wxPaintDC::Clear(void)
 {
   if (!Ok()) return;
   

-  DestroyClippingRegion();
+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();

   
   if (m_isDrawable)
   {
   
   if (m_isDrawable)
   {


@@ -545,16 +633,16 @@ void wxPaintDC::Clear(void)
     int width = 0;
     int height = 0;
     GetSize( &width, &height );
     int width = 0;
     int height = 0;
     GetSize( &width, &height );

-    gdk_draw_rectangle( m_window, m_brushGC, TRUE, 0, 0, width, height );
-  };
-};
+    gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
+  }
+}

 
 void wxPaintDC::SetFont( const wxFont &font )
 {
   if (!Ok()) return;
   
   m_font = font;
 
 void wxPaintDC::SetFont( const wxFont &font )
 {
   if (!Ok()) return;
   
   m_font = font;

-};
+}

 
 void wxPaintDC::SetPen( const wxPen &pen )
 {
 
 void wxPaintDC::SetPen( const wxPen &pen )
 {


@@ -583,34 +671,34 @@ void wxPaintDC::SetPen( const wxPen &pen )
   GdkLineStyle lineStyle = GDK_LINE_SOLID;
   switch (m_pen.GetStyle())
   {
   GdkLineStyle lineStyle = GDK_LINE_SOLID;
   switch (m_pen.GetStyle())
   {

-    case wxSOLID:      { lineStyle = GDK_LINE_SOLID;       break; };
-    case wxDOT:        { lineStyle = GDK_LINE_ON_OFF_DASH; break; };
-    case wxLONG_DASH:  { lineStyle = GDK_LINE_ON_OFF_DASH; break; };
-    case wxSHORT_DASH: { lineStyle = GDK_LINE_ON_OFF_DASH; break; };
-    case wxDOT_DASH:   { lineStyle = GDK_LINE_DOUBLE_DASH; break; };
-  };
+    case wxSOLID:      { lineStyle = GDK_LINE_SOLID;       break; }
+    case wxDOT:        { lineStyle = GDK_LINE_ON_OFF_DASH; break; }
+    case wxLONG_DASH:  { lineStyle = GDK_LINE_ON_OFF_DASH; break; }
+    case wxSHORT_DASH: { lineStyle = GDK_LINE_ON_OFF_DASH; break; }
+    case wxDOT_DASH:   { lineStyle = GDK_LINE_DOUBLE_DASH; break; }
+  }

   
   GdkCapStyle capStyle = GDK_CAP_ROUND;
   switch (m_pen.GetCap())
   {
   
   GdkCapStyle capStyle = GDK_CAP_ROUND;
   switch (m_pen.GetCap())
   {

-    case wxCAP_ROUND:      { capStyle = (width <= 1) ? GDK_CAP_NOT_LAST : GDK_CAP_ROUND; break; };
-    case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; };
-    case wxCAP_BUTT:       { capStyle = GDK_CAP_BUTT;       break; };
-  };
+    case wxCAP_ROUND:      { capStyle = (width <= 1) ? GDK_CAP_NOT_LAST : GDK_CAP_ROUND; break; }
+    case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; }
+    case wxCAP_BUTT:       { capStyle = GDK_CAP_BUTT;       break; }
+  }

   
   GdkJoinStyle joinStyle = GDK_JOIN_ROUND;
   switch (m_pen.GetJoin())
   {
   
   GdkJoinStyle joinStyle = GDK_JOIN_ROUND;
   switch (m_pen.GetJoin())
   {

-    case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; };
-    case wxJOIN_ROUND: { joinStyle = GDK_JOIN_ROUND; break; };
-    case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; };
-  };
+    case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; }
+    case wxJOIN_ROUND: { joinStyle = GDK_JOIN_ROUND; break; }
+    case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; }
+  }

   
   gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle );
   
   m_pen.GetColour().CalcPixel( m_cmap );
   gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
   
   gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle );
   
   m_pen.GetColour().CalcPixel( m_cmap );
   gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );

-};
+}

 
 void wxPaintDC::SetBrush( const wxBrush &brush )
 {
 
 void wxPaintDC::SetBrush( const wxBrush &brush )
 {


@@ -633,21 +721,61 @@ void wxPaintDC::SetBrush( const wxBrush &brush )
       break;
     default:
       fillStyle = GDK_STIPPLED;
       break;
     default:
       fillStyle = GDK_STIPPLED;

-  };
+  }

  
   gdk_gc_set_fill( m_brushGC, fillStyle );
   
   if (m_brush.GetStyle() == wxSTIPPLE)
   {
     gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() );
  
   gdk_gc_set_fill( m_brushGC, fillStyle );
   
   if (m_brush.GetStyle() == wxSTIPPLE)
   {
     gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() );

-  };
+  }

   
   if (IS_HATCH(m_brush.GetStyle()))
   {
     int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH;
     gdk_gc_set_stipple( m_brushGC, hatches[num] );
   
   if (IS_HATCH(m_brush.GetStyle()))
   {
     int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH;
     gdk_gc_set_stipple( m_brushGC, hatches[num] );

-  };
-};
+  }
+}
+
+// CMB 21/7/98: Added SetBackground. Sets background brush
+// for Clear() and bg colour for shapes filled with cross-hatch brush
+void wxPaintDC::SetBackground( const wxBrush &brush )
+{
+  if (!Ok()) return;
+  
+  if (m_backgroundBrush == brush) return;
+  
+  m_backgroundBrush = brush;
+  
+  if (!m_backgroundBrush.Ok()) return;
+  
+  m_backgroundBrush.GetColour().CalcPixel( m_cmap );
+  gdk_gc_set_background( m_brushGC, m_backgroundBrush.GetColour().GetColor() );
+  gdk_gc_set_foreground( m_bgGC, m_backgroundBrush.GetColour().GetColor() );
+  
+  GdkFill fillStyle = GDK_SOLID;
+  switch (m_backgroundBrush.GetStyle())
+  {
+    case wxSOLID:
+    case wxTRANSPARENT:
+      break;
+    default:
+      fillStyle = GDK_STIPPLED;
+  }
+ 
+  gdk_gc_set_fill( m_bgGC, fillStyle );
+  
+  if (m_backgroundBrush.GetStyle() == wxSTIPPLE)
+  {
+    gdk_gc_set_stipple( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() );
+  }
+  
+  if (IS_HATCH(m_backgroundBrush.GetStyle()))
+  {
+    int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH;
+    gdk_gc_set_stipple( m_bgGC, hatches[num] );
+  }
+}

 
 void wxPaintDC::SetLogicalFunction( int function )
 {
 
 void wxPaintDC::SetLogicalFunction( int function )
 {


@@ -658,11 +786,11 @@ void wxPaintDC::SetLogicalFunction( int function )
     case wxXOR:    mode = GDK_INVERT; break;
     case wxINVERT: mode = GDK_INVERT; break;
     default:       break;
     case wxXOR:    mode = GDK_INVERT; break;
     case wxINVERT: mode = GDK_INVERT; break;
     default:       break;

-  };
+  }

   m_logicalFunction = function;
   gdk_gc_set_function( m_penGC, mode );
   gdk_gc_set_function( m_brushGC, mode );
   m_logicalFunction = function;
   gdk_gc_set_function( m_penGC, mode );
   gdk_gc_set_function( m_brushGC, mode );

-};
+}

 
 void wxPaintDC::SetTextForeground( const wxColour &col )
 {
 
 void wxPaintDC::SetTextForeground( const wxColour &col )
 {


@@ -675,7 +803,7 @@ void wxPaintDC::SetTextForeground( const wxColour &col )
   
   m_textForegroundColour.CalcPixel( m_cmap );
   gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
   
   m_textForegroundColour.CalcPixel( m_cmap );
   gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );

-};
+}

 
 void wxPaintDC::SetTextBackground( const wxColour &col )
 {
 
 void wxPaintDC::SetTextBackground( const wxColour &col )
 {


@@ -688,16 +816,24 @@ void wxPaintDC::SetTextBackground( const wxColour &col )
   
   m_textBackgroundColour.CalcPixel( m_cmap );
   gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
   
   m_textBackgroundColour.CalcPixel( m_cmap );
   gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );

-};
+}

 
 void wxPaintDC::SetBackgroundMode( int mode )
 {
   m_backgroundMode = mode;
 
 void wxPaintDC::SetBackgroundMode( int mode )
 {
   m_backgroundMode = mode;

-};
+
+  // CMB 21/7/98: fill style of cross-hatch brushes is affected by
+  // transparent/solid background mode
+  if (m_brush.GetStyle() != wxSOLID && m_brush.GetStyle() != wxTRANSPARENT)
+  {
+    gdk_gc_set_fill( m_brushGC,
+      (m_backgroundMode == wxTRANSPARENT) ? GDK_STIPPLED : GDK_OPAQUE_STIPPLED);
+  }
+}

 
 void wxPaintDC::SetPalette( const wxPalette& WXUNUSED(palette) )
 {
 
 void wxPaintDC::SetPalette( const wxPalette& WXUNUSED(palette) )
 {

-};
+}

 
 void wxPaintDC::SetClippingRegion( long x, long y, long width, long height )
 {
 
 void wxPaintDC::SetClippingRegion( long x, long y, long width, long height )
 {


@@ -706,32 +842,36 @@ void wxPaintDC::SetClippingRegion( long x, long y, long width, long height )
   GdkRectangle rect;
   rect.x = XLOG2DEV(x);
   rect.y = YLOG2DEV(y);
   GdkRectangle rect;
   rect.x = XLOG2DEV(x);
   rect.y = YLOG2DEV(y);

-  rect.width = XLOG2DEV(x+width);
-  rect.height = YLOG2DEV(y+height);
+  rect.width = XLOG2DEVREL(width);
+  rect.height = YLOG2DEVREL(height);

   gdk_gc_set_clip_rectangle( m_penGC, &rect );
   gdk_gc_set_clip_rectangle( m_brushGC, &rect );
   gdk_gc_set_clip_rectangle( m_textGC, &rect );
   gdk_gc_set_clip_rectangle( m_bgGC, &rect );
   
   gdk_gc_set_clip_rectangle( m_penGC, &rect );
   gdk_gc_set_clip_rectangle( m_brushGC, &rect );
   gdk_gc_set_clip_rectangle( m_textGC, &rect );
   gdk_gc_set_clip_rectangle( m_bgGC, &rect );
   

-};
+}

 
 void wxPaintDC::DestroyClippingRegion(void)
 {
   wxDC::DestroyClippingRegion();
   
 
 void wxPaintDC::DestroyClippingRegion(void)
 {
   wxDC::DestroyClippingRegion();
   

-  gdk_gc_set_clip_rectangle( m_penGC, NULL );
-  gdk_gc_set_clip_rectangle( m_brushGC, NULL );
-  gdk_gc_set_clip_rectangle( m_textGC, NULL );
-  gdk_gc_set_clip_rectangle( m_bgGC, NULL );
-};
+  gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL );
+  gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL );
+  gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL );
+  gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL );
+}

 
 void wxPaintDC::SetUpDC(void)
 {
   m_ok = TRUE;
   m_logicalFunction = wxCOPY;
 
 void wxPaintDC::SetUpDC(void)
 {
   m_ok = TRUE;
   m_logicalFunction = wxCOPY;

+  if (m_penGC) gdk_gc_unref( m_penGC );

   m_penGC = gdk_gc_new( m_window );
   m_penGC = gdk_gc_new( m_window );

+  if (m_brushGC) gdk_gc_unref( m_brushGC );

   m_brushGC = gdk_gc_new( m_window );
   m_brushGC = gdk_gc_new( m_window );

+  if (m_textGC) gdk_gc_unref( m_textGC );

   m_textGC = gdk_gc_new( m_window );
   m_textGC = gdk_gc_new( m_window );

+  if (m_bgGC) gdk_gc_unref( m_bgGC );

   m_bgGC = gdk_gc_new( m_window );
   SetTextForeground( m_textForegroundColour );
   SetTextBackground( m_textBackgroundColour );
   m_bgGC = gdk_gc_new( m_window );
   SetTextForeground( m_textForegroundColour );
   SetTextBackground( m_textBackgroundColour );


@@ -744,19 +884,19 @@ void wxPaintDC::SetUpDC(void)
   if (!hatch_bitmap) 
   {
     hatch_bitmap    = hatches;
   if (!hatch_bitmap) 
   {
     hatch_bitmap    = hatches;

-    hatch_bitmap[0] = gdk_bitmap_create_from_data( NULL, bdiag_bits, bdiag_width, bdiag_height );
-    hatch_bitmap[1] = gdk_bitmap_create_from_data( NULL, cdiag_bits, cdiag_width, cdiag_height );
-    hatch_bitmap[2] = gdk_bitmap_create_from_data( NULL, fdiag_bits, fdiag_width, fdiag_height );
-    hatch_bitmap[3] = gdk_bitmap_create_from_data( NULL, cross_bits, cross_width, cross_height );
-    hatch_bitmap[4] = gdk_bitmap_create_from_data( NULL, horiz_bits, horiz_width, horiz_height );
-    hatch_bitmap[5] = gdk_bitmap_create_from_data( NULL, verti_bits, verti_width, verti_height );
-  };
-};
+    hatch_bitmap[0] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, bdiag_bits, bdiag_width, bdiag_height );
+    hatch_bitmap[1] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cdiag_bits, cdiag_width, cdiag_height );
+    hatch_bitmap[2] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, fdiag_bits, fdiag_width, fdiag_height );
+    hatch_bitmap[3] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cross_bits, cross_width, cross_height );
+    hatch_bitmap[4] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, horiz_bits, horiz_width, horiz_height );
+    hatch_bitmap[5] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, verti_bits, verti_width, verti_height );
+  }
+}

 
 GdkWindow *wxPaintDC::GetWindow(void)
 {
   return m_window;
 
 GdkWindow *wxPaintDC::GetWindow(void)
 {
   return m_window;

-};
+}

 
 // ----------------------------------- spline code ----------------------------------------
 
 
 // ----------------------------------- spline code ----------------------------------------
 


@@ -873,7 +1013,7 @@ static void wx_spline_draw_point_array(wxDC *dc)
   }
 }
 
   }
 }
 

-void wxPaintDC::DrawOpenSpline( wxList *points )
+void wxPaintDC::DrawSpline( wxList *points )

 {
     wxPoint *p;
     double           cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
 {
     wxPoint *p;
     double           cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;


@@ -921,4 +1061,4 @@ void wxPaintDC::DrawOpenSpline( wxList *points )
     wx_spline_add_point( x2, y2 );
 
     wx_spline_draw_point_array( this );
     wx_spline_add_point( x2, y2 );
 
     wx_spline_draw_point_array( this );

-};
+}