Added set_ui_color to act as counterpart to ui_color.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19148 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/interface/InterfaceDefs.h

@@ -351,6 +351,8 @@ enum color_which {
 };
 
 _IMPEXP_BE rgb_color	ui_color(color_which which);
+_IMPEXP_BE void			set_ui_color(const color_which &which, 
+									 const rgb_color &color);
 _IMPEXP_BE rgb_color	tint_color(rgb_color color, float tint);
 
 extern "C" status_t	_init_interface_kit_();

src/kits/interface/InterfaceDefs.cpp

@@ -737,6 +737,22 @@ ui_color(color_which which)
 }
 
 
+_IMPEXP_BE void
+set_ui_color(const color_which &which, const rgb_color &color)
+{
+	int32 index = color_which_to_index(which);
+	if (index < 0 || index >= kNumColors) {
+		fprintf(stderr, "set_ui_color(): unknown color_which %d\n", which);
+		return;
+	}
+
+	if (be_app) {
+		server_read_only_memory* shared = BApplication::Private::ServerReadOnlyMemory();
+		shared->colors[index] = color;
+	}
+}
+
+
 _IMPEXP_BE rgb_color
 tint_color(rgb_color color, float tint)
 {