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

diff --git a/src/gtk/dcclient.cpp b/src/gtk/dcclient.cpp
index e75db15ce07048088a3dc44bb14d097890f103fe..84d0cebf07aecfdb9e36265829d18f9ff460f9f2 100644 (file)
--- a/src/gtk/dcclient.cpp
+++ b/src/gtk/dcclient.cpp
@@ -28,7 +28,7 @@
 #define  num_hatches 6
 
 static GdkPixmap  *hatches[num_hatches];
-static GdkPixmap **hatch_bitmap = NULL;
+static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL;
 
 //-----------------------------------------------------------------------------
 // constants
@@ -87,20 +87,20 @@ IMPLEMENT_DYNAMIC_CLASS(wxPaintDC,wxDC)
 
 wxPaintDC::wxPaintDC(void)
 {
-  m_penGC = NULL;
-  m_brushGC = NULL;
-  m_textGC = NULL;
-  m_bgGC = NULL;
-  m_cmap = NULL;
+  m_penGC = (GdkGC *) NULL;
+  m_brushGC = (GdkGC *) NULL;
+  m_textGC = (GdkGC *) NULL;
+  m_bgGC = (GdkGC *) NULL;
+  m_cmap = (GdkColormap *) NULL;
 }
 
 wxPaintDC::wxPaintDC( wxWindow *window )
 {
-  m_penGC = NULL;
-  m_brushGC = NULL;
-  m_textGC = NULL;
-  m_bgGC = NULL;
-  m_cmap = NULL;
+  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;
@@ -115,11 +115,6 @@ wxPaintDC::wxPaintDC( wxWindow *window )
   m_isDrawable = TRUE;
         
   SetUpDC();
-  
-  long x = 0;
-  long y = 0;
-  window->GetDrawingOffset( &x, &y );
-  SetInternalDeviceOrigin( -x, -y );
 }
 
 wxPaintDC::~wxPaintDC(void)
@@ -129,10 +124,12 @@ wxPaintDC::~wxPaintDC(void)
 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
 {
+  wxFAIL_MSG( "wxPaintDC::GetPixel not implemented" );
   return FALSE;
 }
 
@@ -140,6 +137,10 @@ 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, 
@@ -151,6 +152,10 @@ 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;
@@ -169,6 +174,8 @@ void wxPaintDC::DrawArc( long x1, long y1, long x2, long y2, double xc, double y
 {
   if (!Ok()) return;
   
+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  
   long xx1 = XLOG2DEV(x1); 
   long yy1 = YLOG2DEV(y1);
   long xx2 = XLOG2DEV(x2); 
@@ -217,6 +224,8 @@ void wxPaintDC::DrawEllipticArc( long x, long y, long width, long height, double
 {
   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); 
@@ -239,6 +248,8 @@ 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) );
 }
@@ -247,6 +258,8 @@ 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++)
@@ -263,6 +276,8 @@ 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();
@@ -279,10 +294,12 @@ void wxPaintDC::DrawLines( wxList *points, long xoffset, long yoffset )
   }
 }
 
-void wxPaintDC::DrawPolygon( int n, wxPoint points[], 
-  long xoffset, long yoffset, int WXUNUSED(fillStyle) )
- {
-   if (!Ok()) return;
+void wxPaintDC::DrawPolygon( int n, wxPoint points[], long xoffset, long yoffset, int WXUNUSED(fillStyle) )
+{
+  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;
@@ -304,12 +321,13 @@ void wxPaintDC::DrawPolygon( int n, wxPoint points[],
    delete[] gdkpoints;
 }
 
-void wxPaintDC::DrawPolygon( wxList *lines, long xoffset, 
-                              long yoffset, int WXUNUSED(fillStyle))
- {
+void wxPaintDC::DrawPolygon( wxList *lines, long xoffset, long yoffset, int WXUNUSED(fillStyle))
+{
+  if (!Ok()) return;
+  
+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  
    int n = lines->Number();
- 
-   if (!Ok()) return;
    GdkPoint *gdkpoints = new GdkPoint[n];
    wxNode *node = lines->First();
    int cnt=0;
@@ -341,6 +359,8 @@ 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);
@@ -364,6 +384,8 @@ void wxPaintDC::DrawRoundedRectangle( long x, long y, long width, long height, d
 {
   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);    
@@ -429,6 +451,8 @@ 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); 
@@ -456,10 +480,12 @@ void wxPaintDC::DrawIcon( const wxIcon &icon, long x, long y, bool useMask )
   
   if (!icon.Ok()) return;
   
+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  
   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) 
@@ -473,7 +499,7 @@ void wxPaintDC::DrawIcon( const wxIcon &icon, long x, long y, bool useMask )
   
   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 );
   }
 }
@@ -483,21 +509,22 @@ bool wxPaintDC::Blit( long xdest, long ydest, long width, long height,
 {
   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;
-       GdkBitmap* bmap = srcDC->m_selected.GetBitmap();
+    GdkBitmap* bmap = srcDC->m_selected.GetBitmap();
     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;
     }
   }
@@ -524,6 +551,8 @@ void wxPaintDC::DrawText( const wxString &text, long x, long y, bool WXUNUSED(us
 {
   if (!Ok()) return;
 
+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
+  
   GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
   x = XLOG2DEV(x);
@@ -552,22 +581,25 @@ void wxPaintDC::DrawText( const wxString &text, long x, long y, bool WXUNUSED(us
   }
 }
 
-
-
 bool wxPaintDC::CanGetTextExtent(void) const
 {
   return TRUE;
 }
 
 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;
   
-  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 (descent) (*descent) = long(font->descent / m_scaleY);
+  if (externalLeading) (*externalLeading) = 0;  // ??
 }
 
 long wxPaintDC::GetCharWidth(void)
@@ -575,7 +607,7 @@ 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)
@@ -583,14 +615,14 @@ 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;
   
-//  DestroyClippingRegion();
+  if (!m_isDrawable) ((wxMemoryDC*)this)->m_selected.DestroyImage();
   
   if (m_isDrawable)
   {
@@ -823,10 +855,10 @@ 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)
@@ -852,12 +884,12 @@ void wxPaintDC::SetUpDC(void)
   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 );
   }
 }
 
@@ -981,7 +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;