Grid draw improved

xtt/lib/glow/gtk/glow_draw_gtk.cpp

 /* 
- * Proview   $Id: glow_draw_gtk.cpp,v 1.6 2007-07-17 12:43:42 claes Exp $
+ * Proview   $Id: glow_draw_gtk.cpp,v 1.7 2007-08-20 08:23:16 claes Exp $
  * Copyright (C) 2005 SSAB Oxelsund AB.
  *
  * This program is free software; you can redistribute it and/or 
@@ -2295,6 +2295,10 @@ int GlowDrawGtk::draw_points( GlowWind *wind, glow_sPointX *points, int point_nu
   gdk_draw_points( w->window,
 	get_gc( this, gc_type, 0), 
 	gpoints, point_num);
+  if ( w->double_buffer_on)
+    gdk_draw_points( w->buffer,
+	get_gc( this, gc_type, 0), 
+	gpoints, point_num);
   free( gpoints);
 
   if ( w->clip_on)
@@ -2504,7 +2508,7 @@ int GlowDrawGtk::print( char *filename, double x0, double x1, int end)
   if ( new_file) {
     ps->fp <<
 "%!PS-Adobe-2.0 EPSF-1.2" << endl <<
-"%%Creator: Proview   $Id: glow_draw_gtk.cpp,v 1.6 2007-07-17 12:43:42 claes Exp $ Glow" << endl <<
+"%%Creator: Proview   $Id: glow_draw_gtk.cpp,v 1.7 2007-08-20 08:23:16 claes Exp $ Glow" << endl <<
 "%%EndComments" << endl << endl;
   }
   else

xtt/lib/glow/motif/glow_draw_xlib.cpp

 /* 
- * Proview   $Id: glow_draw_xlib.cpp,v 1.6 2007-07-17 12:53:31 claes Exp $
+ * Proview   $Id: glow_draw_xlib.cpp,v 1.7 2007-08-20 08:23:16 claes Exp $
  * Copyright (C) 2005 SSAB Oxelsund AB.
  *
  * This program is free software; you can redistribute it and/or 
@@ -2480,6 +2480,10 @@ int GlowDrawXLib::draw_points( GlowWind *wind, glow_sPointX *points, int point_n
   XDrawPoints( display, w->window,
 	get_gc( this, gc_type, 0), 
 	(XPoint *) points, point_num, CoordModeOrigin);
+  if ( w->double_buffer_on)
+    XDrawPoints( display, w->buffer,
+		 get_gc( this, gc_type, 0), 
+		 (XPoint *) points, point_num, CoordModeOrigin);
 
   if ( w->clip_on)
     reset_clip( w, get_gc( this, gc_type, 0));
@@ -2716,7 +2720,7 @@ int GlowDrawXLib::print( char *filename, double x0, double x1, int end)
   if ( new_file) {
     ps->fp <<
 "%!PS-Adobe-2.0 EPSF-1.2" << endl <<
-"%%Creator: Proview   $Id: glow_draw_xlib.cpp,v 1.6 2007-07-17 12:53:31 claes Exp $ Glow" << endl <<
+"%%Creator: Proview   $Id: glow_draw_xlib.cpp,v 1.7 2007-08-20 08:23:16 claes Exp $ Glow" << endl <<
 "%%EndComments" << endl << endl;
   }
   else

xtt/lib/glow/src/glow_ctx.cpp

 /* 
- * Proview   $Id: glow_ctx.cpp,v 1.17 2007-07-18 13:16:58 claes Exp $
+ * Proview   $Id: glow_ctx.cpp,v 1.18 2007-08-20 08:23:16 claes Exp $
  * Copyright (C) 2005 SSAB Oxelsund AB.
  *
  * This program is free software; you can redistribute it and/or 
@@ -2061,7 +2061,7 @@ void GlowCtx::scroll( int delta_x, int delta_y)
 
 void GlowCtx::draw_grid( GlowWind *w, int ll_x, int ll_y, int ur_x, int ur_y)
 {
-  int x, y, x0, x1, y0, y1, i, j;
+  int x0, x1, y0, y1, i, j;
   int point_num;
 
   x0 = int( (ll_x + mw.offset_x) / mw.zoom_factor_x / grid_size_x);
@@ -2078,13 +2078,17 @@ void GlowCtx::draw_grid( GlowWind *w, int ll_x, int ll_y, int ur_x, int ur_y)
   if ( point_num <= 0 || point_num >= 250000)
     return;
 
+  glow_sPointX *p = (glow_sPointX *)calloc( point_num, sizeof(glow_sPointX));
+  int idx = 0;
   for ( i = x0; i <= x1; i++) {
     for ( j = y0; j <= y1; j++) {
-      x = int( grid_size_x * i * mw.zoom_factor_x) - mw.offset_x;
-      y = int( grid_size_y * j * mw.zoom_factor_y) - mw.offset_y;
-      gdraw->draw_point( &mw, x, y, glow_eDrawType_Line);
+      p[idx].x = int( grid_size_x * i * mw.zoom_factor_x) - mw.offset_x;
+      p[idx].y = int( grid_size_y * j * mw.zoom_factor_y) - mw.offset_y;
+      idx++;
     }
   }
+  gdraw->draw_points( &mw, p, point_num, glow_eDrawType_Line);
+  free( p);
 }
 
 void GlowCtx::set_show_grid( int show)