Bit fiddling.

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

diff --git a/src/gtk1/dcclient.cpp b/src/gtk1/dcclient.cpp
index 37e2ebbf251841aebbd9e81dcff56c624c114a23..3e8025961bda075be3270c6d79391c10b3c41080 100644 (file)
--- a/src/gtk1/dcclient.cpp
+++ b/src/gtk1/dcclient.cpp
@@ -2,9 +2,8 @@
 // Name:        dcclient.cpp
 // Purpose:
 // Author:      Robert Roebling
-// Created:     01/02/97
 // RCS-ID:      $Id$
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Copyright:   (c) 1998 Robert Roebling, Markus Holzem, Chris Breeze
 // Licence:    wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
@@ -28,7 +27,7 @@
 #define  num_hatches 6
 
 static GdkPixmap  *hatches[num_hatches];
-static GdkPixmap **hatch_bitmap = NULL;
+static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL;
 
 //-----------------------------------------------------------------------------
 // constants
@@ -87,20 +86,21 @@ 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;
+  m_isMemDC = FALSE;
 }
 
 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;
@@ -112,25 +112,25 @@ wxPaintDC::wxPaintDC( wxWindow *window )
   else
     m_cmap = gtk_widget_get_colormap( window->m_widget );
     
-  m_isDrawable = TRUE;
+  m_isMemDC = FALSE;
         
   SetUpDC();
-  
-  long x = 0;
-  long y = 0;
 }
 
 wxPaintDC::~wxPaintDC(void)
 {
+  Destroy();
 }
 
 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;
 }
 
@@ -277,10 +277,10 @@ 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 (!n) return;    // Nothing to draw
    GdkPoint *gdkpoints = new GdkPoint[n+1];
    int i;
@@ -302,12 +302,11 @@ 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;
+  
    int n = lines->Number();
- 
-   if (!Ok()) return;
    GdkPoint *gdkpoints = new GdkPoint[n];
    wxNode *node = lines->First();
    int cnt=0;
@@ -457,7 +456,7 @@ void wxPaintDC::DrawIcon( const wxIcon &icon, long x, long y, bool useMask )
   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) 
@@ -471,7 +470,7 @@ 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 );
   }
 }
@@ -481,26 +480,25 @@ bool wxPaintDC::Blit( long xdest, long ydest, long width, long height,
 {
   if (!Ok()) return FALSE;
   
-  // CMB 20/5/98: add blitting of bitmaps
-  if (source->IsKindOf(CLASSINFO(wxMemoryDC)))
+  wxClientDC *csrc = (wxClientDC*)source;
+  
+  if (csrc->m_isMemDC)
   {
     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;
     }
   }
 
-  wxClientDC *csrc = (wxClientDC*)source;
   gdk_window_copy_area ( m_window, m_penGC,
     XLOG2DEV(xdest), YLOG2DEV(ydest),
     csrc->GetWindow(),
@@ -591,9 +589,7 @@ void wxPaintDC::Clear(void)
 {
   if (!Ok()) return;
   
-//  DestroyClippingRegion();
-  
-  if (m_isDrawable)
+  if (!m_isMemDC)
   {
     gdk_window_clear( m_window );
   }
@@ -824,23 +820,20 @@ 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)
 {
+  Destroy();
   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 );
@@ -853,15 +846,27 @@ 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 );
   }
 }
 
+void wxPaintDC::Destroy(void)
+{
+  if (m_penGC) gdk_gc_unref( m_penGC );
+  m_penGC = (GdkGC*) NULL;
+  if (m_brushGC) gdk_gc_unref( m_brushGC );
+  m_brushGC = (GdkGC*) NULL;
+  if (m_textGC) gdk_gc_unref( m_textGC );
+  m_textGC = (GdkGC*) NULL;
+  if (m_bgGC) gdk_gc_unref( m_bgGC );
+  m_bgGC = (GdkGC*) NULL;
+}
+
 GdkWindow *wxPaintDC::GetWindow(void)
 {
   return m_window;
@@ -982,7 +987,7 @@ 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;