[gtkmm] Add Window methods to preserve API from Drawable.

[Murray Cumming <murrayc src gnome org>]

commit a48f6df651e815be5a5225653ff4ac535aff5f01
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Dec 3 16:16:42 2010 +0100

    Add Window methods to preserve API from Drawable.
    
    * gdk/src/window.hg: Aded set_background(RGBA) and renamed
    set_background_pattern() to set_background(Pattern).
    Added set_clip_region() and get_visible_region() and create_cairo_context(),
    which were previously in Drawable.
    * tools/m4/convert_gdk.m4: Added a conversion.

 ChangeLog               |   10 ++++++++++
 gdk/src/window.hg       |   18 ++++++++++++++++--
 tools/m4/convert_gdk.m4 |    2 ++
 3 files changed, 28 insertions(+), 2 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index c605685..bea0d5a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,15 @@
 2010-12-03  Murray Cumming  <murrayc murrayc com>
 
+  Add Window methods to preserve API from Drawable.
+  
+	* gdk/src/window.hg: Aded set_background(RGBA) and renamed 
+	set_background_pattern() to set_background(Pattern).
+	Added set_clip_region() and get_visible_region() and create_cairo_context(),
+	which were previously in Drawable.
+	* tools/m4/convert_gdk.m4: Added a conversion.
+
+2010-12-03  Murray Cumming  <murrayc murrayc com>
+
 	gtk-demo: Fix the build for the append_text() to append() change.
 
 	* demos/gtk-demo/example_sizegroup.cc:
diff --git a/gdk/src/window.hg b/gdk/src/window.hg
index 32def1e..4571c39 100644
--- a/gdk/src/window.hg
+++ b/gdk/src/window.hg
@@ -23,6 +23,8 @@ _CONFIGINCLUDE(gdkmmconfig.h)
 #include <cairomm/region.h>
 #include <cairomm/pattern.h>
 #include <gdkmm/visual.h>
+#include <gdkmm/rgba.h>
+#include <cairomm/context.h>
 #include <gdk/gdk.h>
 
 _DEFS(gdkmm,gdk)
@@ -148,9 +150,10 @@ public:
   _WRAP_METHOD(void set_startup_id(const Glib::ustring& startup_id), gdk_window_set_startup_id)
   _WRAP_METHOD(void set_transient_for(const Glib::RefPtr<Window>& parent), gdk_window_set_transient_for)
   _WRAP_METHOD(void set_background(const Color& color), gdk_window_set_background)
-  
+  _WRAP_METHOD(void set_background(const RGBA& color), gdk_window_set_background_rgba)
+
 #m4 _CONVERSION(`const Cairo::RefPtr<Cairo::Pattern>&',`cairo_pattern_t*',`($3)->cobj()')
-  _WRAP_METHOD(void set_background_pattern(const Cairo::RefPtr<Cairo::Pattern>& pattern), gdk_window_set_background_pattern)
+  _WRAP_METHOD(void set_background(const Cairo::RefPtr<Cairo::Pattern>& pattern), gdk_window_set_background_pattern)
 
   #m4 _CONVERSION(`cairo_pattern_t*',`Cairo::RefPtr<Cairo::Pattern>',`Cairo::RefPtr<Cairo::Pattern>(new Cairo::Pattern($3, false /* take reference */))')
   _WRAP_METHOD(Cairo::RefPtr<Cairo::Pattern> get_background_pattern(), gdk_window_get_background_pattern)
@@ -340,6 +343,17 @@ public:
   _WRAP_METHOD(void set_support_multidevice(bool support_multidevice = true), gdk_window_set_support_multidevice)
   _WRAP_METHOD(bool get_support_multidevice(), gdk_window_get_support_multidevice)
 
+   #m4 _CONVERSION(`cairo_region_t*',`Cairo::RefPtr<Cairo::Region>',`Cairo::RefPtr<Cairo::Region>(new Cairo::Region($3, true /* do not take ref */))')
+
+  //This is const because it returns a copy (though that is not very clear from the C documentation)
+  _WRAP_METHOD(Cairo::RefPtr<Cairo::Region> get_clip_region() const, gdk_window_get_clip_region)
+
+  //This is const because it returns a copy (though that is not very clear from the C documentation)
+  _WRAP_METHOD(Cairo::RefPtr<Cairo::Region> get_visible_region() const, gdk_window_get_visible_region)
+
+  #m4 _CONVERSION(`cairo_t*',`Cairo::RefPtr<Cairo::Context>',`Cairo::RefPtr<Cairo::Context>(new Cairo::Context($3, true /* has_reference */))')
+  _WRAP_METHOD(Cairo::RefPtr<Cairo::Context> create_cairo_context(), gdk_cairo_create)
+
   //TODO: Wrap these? Find out when they are emitted and if they are useful outside of GTK+, and improve the C docs.
   //_WRAP_SIGNAL(Glib::RefPtr<Gdk::Window> pick_embedded_child(double x, double y), pick-embedded-child, no_default_handler)
   //_WRAP_SIGNAL(Glib::RefPtr<Gdk::Window> to_embedder(double offscreen_x, double offscreen_y, double& embedder_x, double& embedder_y), to-embedder, no_default_handler)
diff --git a/tools/m4/convert_gdk.m4 b/tools/m4/convert_gdk.m4
index 88d8705..1b326c3 100644
--- a/tools/m4/convert_gdk.m4
+++ b/tools/m4/convert_gdk.m4
@@ -91,6 +91,8 @@ _CONVERSION(`GdkColor',`Gdk::Color', `Gdk::Color(const_cast<GdkColor*>(&($3)), t
 # Ref (gdkmm) -> Ptr (gtk+)
 _CONVERSION(`Color&',`GdkColor*',($3).gobj())
 _CONVERSION(`const Gdk::Color&',`const GdkColor*',`($3).gobj()')
+_CONVERSION(`const RGBA&',`const GdkRGBA*',`($3).gobj()')
+_CONVERSION(`const RGBA&',`GdkRGBA*',`const_cast<RGBA&>($3).gobj()')
 _CONVERSION(`const Gdk::RGBA&',`const GdkRGBA*',`($3).gobj()')
 _CONVERSION(`const Color&',`const GdkColor*',`($3).gobj()')
 _CONVERSION(`const Cursor&',`GdkCursor*',const_cast<GdkCursor*>(($3).gobj()))