Implemented gimp_palette_set_default_colors and

gimp_palette_swap_colors as pdb-calls and bound menu-entries and
keybindings to them.
(gimp-sven-980216-0.patch)

--Sven

ChangeLog

@@ -1,3 +1,16 @@
+Sun Mar  1 20:28:54 MET 1998 Sven Neumann <sven@gimp.org>
+
+	* app/internal_procs.c
+ 	* app/palette.c
+ 	* app/palette.h
+ 	* app/commands.c
+ 	* app/commands.h
+ 	* app/menus.c
+ 	* libgimp/gimppalette.c: 
+	implemented gimp_palette_set_default_colors and
+	gimp_palette_swap_colors as pdb-calls and bound menu-entries and
+	keybindings to them (gimp-sven-980216-0.patch)	
+
 Sat Feb 28 22:05:15 PST 1998 Manish Singh <yosh@gimp.org>
 
 	* autoconfed the data stuff

app/actions/help-commands.c

@@ -2278,6 +2278,20 @@ layers_mask_select_cmd_callback (GtkWidget *widget,
   gdisplays_flush ();
 }
 
+void
+tools_default_colors_cmd_callback (GtkWidget *widget,
+				   gpointer   client_data)
+{
+  palette_set_default_colors ();
+}
+
+void
+tools_swap_colors_cmd_callback (GtkWidget *widget,
+				gpointer   client_data)
+{
+  palette_swap_colors ();
+}
+
 void
 tools_select_cmd_callback (GtkWidget *widget,
 			   gpointer   client_data)

app/actions/help-commands.h

@@ -77,6 +77,8 @@ void layers_merge_cmd_callback (GtkWidget *, gpointer);
 void layers_flatten_cmd_callback (GtkWidget *, gpointer);
 void layers_alpha_select_cmd_callback (GtkWidget *, gpointer);
 void layers_mask_select_cmd_callback (GtkWidget *, gpointer);
+void tools_default_colors_cmd_callback (GtkWidget *, gpointer);
+void tools_swap_colors_cmd_callback (GtkWidget *, gpointer);
 void tools_select_cmd_callback (GtkWidget *, gpointer);
 void filters_repeat_cmd_callback (GtkWidget *, gpointer);
 void dialogs_brushes_cmd_callback (GtkWidget *, gpointer);

app/color_area.c

@@ -1,4 +1,4 @@
-/* The GIMP -- an image manipulation program
+#/* The GIMP -- an image manipulation program
  * Copyright (C) 1995 Spencer Kimball and Peter Mattis
  *
  * This program is free software; you can redistribute it and/or modify
@@ -205,8 +205,6 @@ color_area_events (GtkWidget *widget,
 {
   GdkEventButton *bevent;
   int target;
-  unsigned char fg_r, fg_g, fg_b;
-  unsigned char bg_r, bg_g, bg_b;
 
   switch (event->type)
     {
@@ -239,18 +237,11 @@ color_area_events (GtkWidget *widget,
 		}
 	      break;
 	    case SWAP_AREA:
-	      palette_get_foreground (&fg_r, &fg_g, &fg_b);
+	      palette_swap_colors();
-	      palette_get_background (&bg_r, &bg_g, &bg_b);
-
-	      palette_set_foreground (bg_r, bg_g, bg_b);
-	      palette_set_background (fg_r, fg_g, fg_b);
-
 	      color_area_draw ();
 	      break;
 	    case DEF_AREA:
-	      palette_set_foreground (0, 0, 0);
+	      palette_set_default_colors();
-	      palette_set_background (255, 255, 255);
-
 	      color_area_draw ();
 	      break;
 	    }

app/commands.c

@@ -2278,6 +2278,20 @@ layers_mask_select_cmd_callback (GtkWidget *widget,
   gdisplays_flush ();
 }
 
+void
+tools_default_colors_cmd_callback (GtkWidget *widget,
+				   gpointer   client_data)
+{
+  palette_set_default_colors ();
+}
+
+void
+tools_swap_colors_cmd_callback (GtkWidget *widget,
+				gpointer   client_data)
+{
+  palette_swap_colors ();
+}
+
 void
 tools_select_cmd_callback (GtkWidget *widget,
 			   gpointer   client_data)

app/commands.h

@@ -77,6 +77,8 @@ void layers_merge_cmd_callback (GtkWidget *, gpointer);
 void layers_flatten_cmd_callback (GtkWidget *, gpointer);
 void layers_alpha_select_cmd_callback (GtkWidget *, gpointer);
 void layers_mask_select_cmd_callback (GtkWidget *, gpointer);
+void tools_default_colors_cmd_callback (GtkWidget *, gpointer);
+void tools_swap_colors_cmd_callback (GtkWidget *, gpointer);
 void tools_select_cmd_callback (GtkWidget *, gpointer);
 void filters_repeat_cmd_callback (GtkWidget *, gpointer);
 void dialogs_brushes_cmd_callback (GtkWidget *, gpointer);

app/gui/color-area.c

@@ -1,4 +1,4 @@
-/* The GIMP -- an image manipulation program
+#/* The GIMP -- an image manipulation program
  * Copyright (C) 1995 Spencer Kimball and Peter Mattis
  *
  * This program is free software; you can redistribute it and/or modify
@@ -205,8 +205,6 @@ color_area_events (GtkWidget *widget,
 {
   GdkEventButton *bevent;
   int target;
-  unsigned char fg_r, fg_g, fg_b;
-  unsigned char bg_r, bg_g, bg_b;
 
   switch (event->type)
     {
@@ -239,18 +237,11 @@ color_area_events (GtkWidget *widget,
 		}
 	      break;
 	    case SWAP_AREA:
-	      palette_get_foreground (&fg_r, &fg_g, &fg_b);
+	      palette_swap_colors();
-	      palette_get_background (&bg_r, &bg_g, &bg_b);
-
-	      palette_set_foreground (bg_r, bg_g, bg_b);
-	      palette_set_background (fg_r, fg_g, fg_b);
-
 	      color_area_draw ();
 	      break;
 	    case DEF_AREA:
-	      palette_set_foreground (0, 0, 0);
+	      palette_set_default_colors();
-	      palette_set_background (255, 255, 255);
-
 	      color_area_draw ();
 	      break;
 	    }

app/gui/commands.c

@@ -2278,6 +2278,20 @@ layers_mask_select_cmd_callback (GtkWidget *widget,
   gdisplays_flush ();
 }
 
+void
+tools_default_colors_cmd_callback (GtkWidget *widget,
+				   gpointer   client_data)
+{
+  palette_set_default_colors ();
+}
+
+void
+tools_swap_colors_cmd_callback (GtkWidget *widget,
+				gpointer   client_data)
+{
+  palette_swap_colors ();
+}
+
 void
 tools_select_cmd_callback (GtkWidget *widget,
 			   gpointer   client_data)

app/gui/commands.h

@@ -77,6 +77,8 @@ void layers_merge_cmd_callback (GtkWidget *, gpointer);
 void layers_flatten_cmd_callback (GtkWidget *, gpointer);
 void layers_alpha_select_cmd_callback (GtkWidget *, gpointer);
 void layers_mask_select_cmd_callback (GtkWidget *, gpointer);
+void tools_default_colors_cmd_callback (GtkWidget *, gpointer);
+void tools_swap_colors_cmd_callback (GtkWidget *, gpointer);
 void tools_select_cmd_callback (GtkWidget *, gpointer);
 void filters_repeat_cmd_callback (GtkWidget *, gpointer);
 void dialogs_brushes_cmd_callback (GtkWidget *, gpointer);

app/gui/help-commands.c

@@ -2278,6 +2278,20 @@ layers_mask_select_cmd_callback (GtkWidget *widget,
   gdisplays_flush ();
 }
 
+void
+tools_default_colors_cmd_callback (GtkWidget *widget,
+				   gpointer   client_data)
+{
+  palette_set_default_colors ();
+}
+
+void
+tools_swap_colors_cmd_callback (GtkWidget *widget,
+				gpointer   client_data)
+{
+  palette_swap_colors ();
+}
+
 void
 tools_select_cmd_callback (GtkWidget *widget,
 			   gpointer   client_data)

app/gui/help-commands.h

@@ -77,6 +77,8 @@ void layers_merge_cmd_callback (GtkWidget *, gpointer);
 void layers_flatten_cmd_callback (GtkWidget *, gpointer);
 void layers_alpha_select_cmd_callback (GtkWidget *, gpointer);
 void layers_mask_select_cmd_callback (GtkWidget *, gpointer);
+void tools_default_colors_cmd_callback (GtkWidget *, gpointer);
+void tools_swap_colors_cmd_callback (GtkWidget *, gpointer);
 void tools_select_cmd_callback (GtkWidget *, gpointer);
 void filters_repeat_cmd_callback (GtkWidget *, gpointer);
 void dialogs_brushes_cmd_callback (GtkWidget *, gpointer);

app/gui/menus.c

@@ -177,6 +177,8 @@ static GtkMenuEntry menu_items[] =
   { "<Image>/Tools/Airbrush", "A", tools_select_cmd_callback, (gpointer) AIRBRUSH },
   { "<Image>/Tools/Clone", "C", tools_select_cmd_callback, (gpointer) CLONE },
   { "<Image>/Tools/Convolve", "V", tools_select_cmd_callback, (gpointer) CONVOLVE },
+  { "<Image>/Tools/Default Colors", "D", tools_default_colors_cmd_callback, NULL},
+  { "<Image>/Tools/Swap Colors", "X", tools_swap_colors_cmd_callback, NULL},  
   { "<Image>/Tools/<separator>", NULL, NULL, NULL },
   { "<Image>/Tools/Toolbox", NULL, toolbox_raise_callback, NULL },
 

app/gui/palette-editor.c

@@ -357,6 +357,27 @@ palette_set_background (int r,
     }
 }
 
+void
+palette_set_default_colors (void)
+{
+  palette_set_foreground (0, 0, 0);
+  palette_set_background (255, 255, 255);
+}
+
+
+void 
+palette_swap_colors (void)
+{
+  unsigned char fg_r, fg_g, fg_b;
+  unsigned char bg_r, bg_g, bg_b;
+  
+  palette_get_foreground (&fg_r, &fg_g, &fg_b);
+  palette_get_background (&bg_r, &bg_g, &bg_b);
+  
+  palette_set_foreground (bg_r, bg_g, bg_b);
+  palette_set_background (fg_r, fg_g, fg_b);
+}
+
 void
 palette_init_palettes (void)
 {
@@ -1616,3 +1637,81 @@ ProcRecord palette_set_background_proc =
   /*  Exec method  */
   { { palette_set_background_invoker } },
 };
+
+/*******************************/
+/*  PALETTE_SET_DEFAULT_COLORS */
+
+static Argument *
+palette_set_default_colors_invoker (Argument *args)
+{
+  int success;
+
+  success = TRUE;
+  if (success)
+    palette_set_default_colors ();
+
+  return procedural_db_return_args (&palette_set_background_proc, success);
+}
+
+/*  The procedure definition  */
+
+ProcRecord palette_set_default_colors_proc =
+{
+  "gimp_palette_set_default_colors",
+  "Set the current GIMP foreground and background colors to black and white",
+  "This procedure sets the current GIMP foreground and background colors to their initial default values, black and white.",
+  "Spencer Kimball & Peter Mattis",
+  "Spencer Kimball & Peter Mattis",
+  "1995-1996",
+  PDB_INTERNAL,
+
+  /*  Input arguments  */
+  0,
+  NULL,
+
+  /*  Output arguments  */
+  0,
+  NULL,
+
+  /*  Exec method  */
+  { { palette_set_default_colors_invoker } },
+};
+
+/************************/
+/*  PALETTE_SWAP_COLORS */
+
+static Argument *
+palette_swap_colors_invoker (Argument *args)
+{
+  int success;
+
+  success = TRUE;
+  if (success)
+    palette_swap_colors ();
+
+  return procedural_db_return_args (&palette_swap_colors_proc, success);
+}
+
+/*  The procedure definition  */
+
+ProcRecord palette_swap_colors_proc =
+{
+  "gimp_palette_swap_colors",
+  "Swap the current GIMP foreground and background colors",
+  "This procedure swaps the current GIMP foreground and background colors, so that the new foreground color becomes the old background color and vice versa.",
+  "Spencer Kimball & Peter Mattis",
+  "Spencer Kimball & Peter Mattis",
+  "1995-1996",
+  PDB_INTERNAL,
+
+  /*  Input arguments  */
+  0,
+  NULL,
+
+  /*  Output arguments  */
+  0,
+  NULL,
+
+  /*  Exec method  */
+  { { palette_swap_colors_invoker } },
+};

app/gui/palette-editor.h

@@ -38,6 +38,8 @@ void palette_get_background (unsigned char *, unsigned char *, unsigned char *);
 void palette_set_foreground (int, int, int);
 void palette_set_background (int, int, int);
 void palette_set_active_color (int, int, int, int);
+void palette_set_default_colors (void);
+void palette_swap_colors (void);
 
 struct _PaletteEntries {
   char *name;
@@ -64,5 +66,7 @@ extern ProcRecord palette_get_foreground_proc;
 extern ProcRecord palette_get_background_proc;
 extern ProcRecord palette_set_foreground_proc;
 extern ProcRecord palette_set_background_proc;
+extern ProcRecord palette_set_default_colors_proc;
+extern ProcRecord palette_swap_colors_proc;
 
 #endif /* __PALETTE_H__ */

app/internal_procs.c

@@ -294,6 +294,8 @@ internal_procs_init ()
   procedural_db_register (&palette_get_background_proc); pcount++;
   procedural_db_register (&palette_set_foreground_proc); pcount++;
   procedural_db_register (&palette_set_background_proc); pcount++;
+  procedural_db_register (&palette_set_default_colors_proc); pcount++;
+  procedural_db_register (&palette_swap_colors_proc); pcount++; 
 
   app_init_update_status(NULL, "Interface procedures",
 			 pcount/total_pcount);

app/menus.c

@@ -177,6 +177,8 @@ static GtkMenuEntry menu_items[] =
   { "<Image>/Tools/Airbrush", "A", tools_select_cmd_callback, (gpointer) AIRBRUSH },
   { "<Image>/Tools/Clone", "C", tools_select_cmd_callback, (gpointer) CLONE },
   { "<Image>/Tools/Convolve", "V", tools_select_cmd_callback, (gpointer) CONVOLVE },
+  { "<Image>/Tools/Default Colors", "D", tools_default_colors_cmd_callback, NULL},
+  { "<Image>/Tools/Swap Colors", "X", tools_swap_colors_cmd_callback, NULL},  
   { "<Image>/Tools/<separator>", NULL, NULL, NULL },
   { "<Image>/Tools/Toolbox", NULL, toolbox_raise_callback, NULL },
 

app/menus/menus.c

@@ -177,6 +177,8 @@ static GtkMenuEntry menu_items[] =
   { "<Image>/Tools/Airbrush", "A", tools_select_cmd_callback, (gpointer) AIRBRUSH },
   { "<Image>/Tools/Clone", "C", tools_select_cmd_callback, (gpointer) CLONE },
   { "<Image>/Tools/Convolve", "V", tools_select_cmd_callback, (gpointer) CONVOLVE },
+  { "<Image>/Tools/Default Colors", "D", tools_default_colors_cmd_callback, NULL},
+  { "<Image>/Tools/Swap Colors", "X", tools_swap_colors_cmd_callback, NULL},  
   { "<Image>/Tools/<separator>", NULL, NULL, NULL },
   { "<Image>/Tools/Toolbox", NULL, toolbox_raise_callback, NULL },
 

app/palette.c

@@ -357,6 +357,27 @@ palette_set_background (int r,
     }
 }
 
+void
+palette_set_default_colors (void)
+{
+  palette_set_foreground (0, 0, 0);
+  palette_set_background (255, 255, 255);
+}
+
+
+void 
+palette_swap_colors (void)
+{
+  unsigned char fg_r, fg_g, fg_b;
+  unsigned char bg_r, bg_g, bg_b;
+  
+  palette_get_foreground (&fg_r, &fg_g, &fg_b);
+  palette_get_background (&bg_r, &bg_g, &bg_b);
+  
+  palette_set_foreground (bg_r, bg_g, bg_b);
+  palette_set_background (fg_r, fg_g, fg_b);
+}
+
 void
 palette_init_palettes (void)
 {
@@ -1616,3 +1637,81 @@ ProcRecord palette_set_background_proc =
   /*  Exec method  */
   { { palette_set_background_invoker } },
 };
+
+/*******************************/
+/*  PALETTE_SET_DEFAULT_COLORS */
+
+static Argument *
+palette_set_default_colors_invoker (Argument *args)
+{
+  int success;
+
+  success = TRUE;
+  if (success)
+    palette_set_default_colors ();
+
+  return procedural_db_return_args (&palette_set_background_proc, success);
+}
+
+/*  The procedure definition  */
+
+ProcRecord palette_set_default_colors_proc =
+{
+  "gimp_palette_set_default_colors",
+  "Set the current GIMP foreground and background colors to black and white",
+  "This procedure sets the current GIMP foreground and background colors to their initial default values, black and white.",
+  "Spencer Kimball & Peter Mattis",
+  "Spencer Kimball & Peter Mattis",
+  "1995-1996",
+  PDB_INTERNAL,
+
+  /*  Input arguments  */
+  0,
+  NULL,
+
+  /*  Output arguments  */
+  0,
+  NULL,
+
+  /*  Exec method  */
+  { { palette_set_default_colors_invoker } },
+};
+
+/************************/
+/*  PALETTE_SWAP_COLORS */
+
+static Argument *
+palette_swap_colors_invoker (Argument *args)
+{
+  int success;
+
+  success = TRUE;
+  if (success)
+    palette_swap_colors ();
+
+  return procedural_db_return_args (&palette_swap_colors_proc, success);
+}
+
+/*  The procedure definition  */
+
+ProcRecord palette_swap_colors_proc =
+{
+  "gimp_palette_swap_colors",
+  "Swap the current GIMP foreground and background colors",
+  "This procedure swaps the current GIMP foreground and background colors, so that the new foreground color becomes the old background color and vice versa.",
+  "Spencer Kimball & Peter Mattis",
+  "Spencer Kimball & Peter Mattis",
+  "1995-1996",
+  PDB_INTERNAL,
+
+  /*  Input arguments  */
+  0,
+  NULL,
+
+  /*  Output arguments  */
+  0,
+  NULL,
+
+  /*  Exec method  */
+  { { palette_swap_colors_invoker } },
+};

app/palette.h

@@ -38,6 +38,8 @@ void palette_get_background (unsigned char *, unsigned char *, unsigned char *);
 void palette_set_foreground (int, int, int);
 void palette_set_background (int, int, int);
 void palette_set_active_color (int, int, int, int);
+void palette_set_default_colors (void);
+void palette_swap_colors (void);
 
 struct _PaletteEntries {
   char *name;
@@ -64,5 +66,7 @@ extern ProcRecord palette_get_foreground_proc;
 extern ProcRecord palette_get_background_proc;
 extern ProcRecord palette_set_foreground_proc;
 extern ProcRecord palette_set_background_proc;
+extern ProcRecord palette_set_default_colors_proc;
+extern ProcRecord palette_swap_colors_proc;
 
 #endif /* __PALETTE_H__ */

app/widgets/gimpitemfactory.c

@@ -177,6 +177,8 @@ static GtkMenuEntry menu_items[] =
   { "<Image>/Tools/Airbrush", "A", tools_select_cmd_callback, (gpointer) AIRBRUSH },
   { "<Image>/Tools/Clone", "C", tools_select_cmd_callback, (gpointer) CLONE },
   { "<Image>/Tools/Convolve", "V", tools_select_cmd_callback, (gpointer) CONVOLVE },
+  { "<Image>/Tools/Default Colors", "D", tools_default_colors_cmd_callback, NULL},
+  { "<Image>/Tools/Swap Colors", "X", tools_swap_colors_cmd_callback, NULL},  
   { "<Image>/Tools/<separator>", NULL, NULL, NULL },
   { "<Image>/Tools/Toolbox", NULL, toolbox_raise_callback, NULL },
 

app/widgets/gimppaletteeditor.c

@@ -357,6 +357,27 @@ palette_set_background (int r,
     }
 }
 
+void
+palette_set_default_colors (void)
+{
+  palette_set_foreground (0, 0, 0);
+  palette_set_background (255, 255, 255);
+}
+
+
+void 
+palette_swap_colors (void)
+{
+  unsigned char fg_r, fg_g, fg_b;
+  unsigned char bg_r, bg_g, bg_b;
+  
+  palette_get_foreground (&fg_r, &fg_g, &fg_b);
+  palette_get_background (&bg_r, &bg_g, &bg_b);
+  
+  palette_set_foreground (bg_r, bg_g, bg_b);
+  palette_set_background (fg_r, fg_g, fg_b);
+}
+
 void
 palette_init_palettes (void)
 {
@@ -1616,3 +1637,81 @@ ProcRecord palette_set_background_proc =
   /*  Exec method  */
   { { palette_set_background_invoker } },
 };
+
+/*******************************/
+/*  PALETTE_SET_DEFAULT_COLORS */
+
+static Argument *
+palette_set_default_colors_invoker (Argument *args)
+{
+  int success;
+
+  success = TRUE;
+  if (success)
+    palette_set_default_colors ();
+
+  return procedural_db_return_args (&palette_set_background_proc, success);
+}
+
+/*  The procedure definition  */
+
+ProcRecord palette_set_default_colors_proc =
+{
+  "gimp_palette_set_default_colors",
+  "Set the current GIMP foreground and background colors to black and white",
+  "This procedure sets the current GIMP foreground and background colors to their initial default values, black and white.",
+  "Spencer Kimball & Peter Mattis",
+  "Spencer Kimball & Peter Mattis",
+  "1995-1996",
+  PDB_INTERNAL,
+
+  /*  Input arguments  */
+  0,
+  NULL,
+
+  /*  Output arguments  */
+  0,
+  NULL,
+
+  /*  Exec method  */
+  { { palette_set_default_colors_invoker } },
+};
+
+/************************/
+/*  PALETTE_SWAP_COLORS */
+
+static Argument *
+palette_swap_colors_invoker (Argument *args)
+{
+  int success;
+
+  success = TRUE;
+  if (success)
+    palette_swap_colors ();
+
+  return procedural_db_return_args (&palette_swap_colors_proc, success);
+}
+
+/*  The procedure definition  */
+
+ProcRecord palette_swap_colors_proc =
+{
+  "gimp_palette_swap_colors",
+  "Swap the current GIMP foreground and background colors",
+  "This procedure swaps the current GIMP foreground and background colors, so that the new foreground color becomes the old background color and vice versa.",
+  "Spencer Kimball & Peter Mattis",
+  "Spencer Kimball & Peter Mattis",
+  "1995-1996",
+  PDB_INTERNAL,
+
+  /*  Input arguments  */
+  0,
+  NULL,
+
+  /*  Output arguments  */
+  0,
+  NULL,
+
+  /*  Exec method  */
+  { { palette_swap_colors_invoker } },
+};

app/widgets/gimppaletteeditor.h

@@ -38,6 +38,8 @@ void palette_get_background (unsigned char *, unsigned char *, unsigned char *);
 void palette_set_foreground (int, int, int);
 void palette_set_background (int, int, int);
 void palette_set_active_color (int, int, int, int);
+void palette_set_default_colors (void);
+void palette_swap_colors (void);
 
 struct _PaletteEntries {
   char *name;
@@ -64,5 +66,7 @@ extern ProcRecord palette_get_foreground_proc;
 extern ProcRecord palette_get_background_proc;
 extern ProcRecord palette_set_foreground_proc;
 extern ProcRecord palette_set_background_proc;
+extern ProcRecord palette_set_default_colors_proc;
+extern ProcRecord palette_swap_colors_proc;
 
 #endif /* __PALETTE_H__ */

app/widgets/gimptoolbox-color-area.c

@@ -1,4 +1,4 @@
-/* The GIMP -- an image manipulation program
+#/* The GIMP -- an image manipulation program
  * Copyright (C) 1995 Spencer Kimball and Peter Mattis
  *
  * This program is free software; you can redistribute it and/or modify
@@ -205,8 +205,6 @@ color_area_events (GtkWidget *widget,
 {
   GdkEventButton *bevent;
   int target;
-  unsigned char fg_r, fg_g, fg_b;
-  unsigned char bg_r, bg_g, bg_b;
 
   switch (event->type)
     {
@@ -239,18 +237,11 @@ color_area_events (GtkWidget *widget,
 		}
 	      break;
 	    case SWAP_AREA:
-	      palette_get_foreground (&fg_r, &fg_g, &fg_b);
+	      palette_swap_colors();
-	      palette_get_background (&bg_r, &bg_g, &bg_b);
-
-	      palette_set_foreground (bg_r, bg_g, bg_b);
-	      palette_set_background (fg_r, fg_g, fg_b);
-
 	      color_area_draw ();
 	      break;
 	    case DEF_AREA:
-	      palette_set_foreground (0, 0, 0);
+	      palette_set_default_colors();
-	      palette_set_background (255, 255, 255);
-
 	      color_area_draw ();
 	      break;
 	    }

libgimp/gimppalette.c

@@ -103,3 +103,29 @@ gimp_palette_set_foreground (guchar red,
 
   gimp_destroy_params (return_vals, nreturn_vals);
 }
+
+void
+gimp_palette_set_default_colors (void)
+{
+  GParam *return_vals;
+  int nreturn_vals;
+
+  return_vals = gimp_run_procedure ("gimp_palette_set_default_colors",
+                                    &nreturn_vals,
+                                    PARAM_END);
+
+  gimp_destroy_params (return_vals, nreturn_vals);
+}
+
+void
+gimp_palette_swap_colors (void)
+{
+  GParam *return_vals;
+  int nreturn_vals;
+
+  return_vals = gimp_run_procedure ("gimp_palette_swap_colors",
+                                    &nreturn_vals,
+                                    PARAM_END);
+
+  gimp_destroy_params (return_vals, nreturn_vals);
+}

libgimp/gimppalette_pdb.c

@@ -103,3 +103,29 @@ gimp_palette_set_foreground (guchar red,
 
   gimp_destroy_params (return_vals, nreturn_vals);
 }
+
+void
+gimp_palette_set_default_colors (void)
+{
+  GParam *return_vals;
+  int nreturn_vals;
+
+  return_vals = gimp_run_procedure ("gimp_palette_set_default_colors",
+                                    &nreturn_vals,
+                                    PARAM_END);
+
+  gimp_destroy_params (return_vals, nreturn_vals);
+}
+
+void
+gimp_palette_swap_colors (void)
+{
+  GParam *return_vals;
+  int nreturn_vals;
+
+  return_vals = gimp_run_procedure ("gimp_palette_swap_colors",
+                                    &nreturn_vals,
+                                    PARAM_END);
+
+  gimp_destroy_params (return_vals, nreturn_vals);
+}