X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6f65e33794fca0c936227235515a40e7df5c56e3..86b29a6122ae09d47995bc8f8919cb96a6ca18c7:/src/gtk/dcclient.cpp

diff --git a/src/gtk/dcclient.cpp b/src/gtk/dcclient.cpp
index dd64b45428..468db590bc 100644
--- a/src/gtk/dcclient.cpp
+++ b/src/gtk/dcclient.cpp
@@ -87,10 +87,21 @@ IMPLEMENT_DYNAMIC_CLASS(wxPaintDC,wxDC)
 
 wxPaintDC::wxPaintDC(void)
 {
+  m_penGC = NULL;
+  m_brushGC = NULL;
+  m_textGC = NULL;
+  m_bgGC = NULL;
+  m_cmap = NULL;
 };
 
 wxPaintDC::wxPaintDC( wxWindow *window )
 {
+  m_penGC = NULL;
+  m_brushGC = NULL;
+  m_textGC = NULL;
+  m_bgGC = NULL;
+  m_cmap = NULL;
+  
   if (!window) return;
   GtkWidget *widget = window->m_wxwindow;
   if (!widget) return;
@@ -100,6 +111,9 @@ wxPaintDC::wxPaintDC( wxWindow *window )
     m_cmap = gtk_widget_get_colormap( window->m_wxwindow );
   else
     m_cmap = gtk_widget_get_colormap( window->m_widget );
+    
+  m_isDrawable = TRUE;
+        
   SetUpDC();
   
   long x = 0;
@@ -241,7 +255,7 @@ void wxPaintDC::DrawLines( int n, wxPoint points[], long xoffset, long yoffset )
     long x2 = XLOG2DEV(points[i+1].x + xoffset);
     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_brushGC, x1, y1, x2, y2 );
+    gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
   };
 };
 
@@ -260,21 +274,67 @@ void wxPaintDC::DrawLines( wxList *points, long xoffset, long yoffset )
     long x2 = XLOG2DEV(npoint->x + xoffset);
     long y1 = YLOG2DEV(point->y + yoffset);    // and again...
     long y2 = YLOG2DEV(npoint->y + yoffset);
-    gdk_draw_line( m_window, m_brushGC, x1, y1, x2, y2 );
+    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) )
-{
-  if (!Ok()) return;
+void wxPaintDC::DrawPolygon( int n, wxPoint points[], 
+  long xoffset, long yoffset, int WXUNUSED(fillStyle) )
+ {
+   if (!Ok()) return;
+   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) )
-{
-  if (!Ok()) return;
+void wxPaintDC::DrawPolygon( wxList *lines, long xoffset, 
+                              long yoffset, int WXUNUSED(fillStyle))
+ {
+   int n = lines->Number();
+ 
+   if (!Ok()) return;
+   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 )
@@ -460,12 +520,16 @@ bool wxPaintDC::Blit( long xdest, long ydest, long width, long height,
   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;
-  
+
   GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
+  x = XLOG2DEV(x);
+  y = YLOG2DEV(y);
+
   // CMB 21/5/98: draw text background if mode is wxSOLID
   if (m_backgroundMode == wxSOLID)
   {
@@ -475,11 +539,22 @@ void wxPaintDC::DrawText( const wxString &text, long x, long y, bool WXUNUSED(us
     gdk_draw_rectangle( m_window, m_textGC, TRUE, x, y, width, height );
     gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
   }
-  gdk_draw_string( m_window, font, m_textGC, 
-    XLOG2DEV(x), 
-    YLOG2DEV(y) + font->ascent, text );
+  gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text );
+
+  // CMB 17/7/98: simple underline: ignores scaling and underlying
+  // X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS
+  // properties (see wxXt implementation)
+  if (m_font.GetUnderlined())
+  {
+    long width = gdk_string_width( font, text );
+    long ul_y = y + font->ascent;
+    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;
@@ -516,8 +591,19 @@ void wxPaintDC::Clear(void)
 {
   if (!Ok()) return;
   
-  DestroyClippingRegion();
-  gdk_window_clear( m_window );
+//  DestroyClippingRegion();
+  
+  if (m_isDrawable)
+  {
+    gdk_window_clear( m_window );
+  }
+  else
+  {
+    int width = 0;
+    int height = 0;
+    GetSize( &width, &height );
+    gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
+  };
 };
 
 void wxPaintDC::SetFont( const wxFont &font )
@@ -620,6 +706,46 @@ void wxPaintDC::SetBrush( const wxBrush &brush )
   };
 };
 
+// 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 )
 {
   if (m_logicalFunction == function) return;
@@ -664,6 +790,14 @@ void wxPaintDC::SetTextBackground( const wxColour &col )
 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) )
@@ -700,9 +834,13 @@ 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 );
+  if (m_brushGC) gdk_gc_unref( m_brushGC );
   m_brushGC = gdk_gc_new( m_window );
+  if (m_textGC) gdk_gc_unref( m_textGC );
   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 );