From 381548bbe0964743415beca1f54ffb30900a1074b7a2571810b335529e6955c8 Mon Sep 17 00:00:00 2001
From: OBS User unknown <null@suse.de>
Date: Sat, 26 Apr 2008 09:29:16 +0000
Subject: [PATCH] OBS-URL:
 https://build.opensuse.org/package/show/openSUSE:Factory/gnome-control-center?expand=0&rev=2

---
 gnome-control-center-randr-1.2.diff | 4429 +++++++++++++++++++++++++++
 gnome-control-center.changes        |    6 +
 gnome-control-center.spec           |    8 +-
 3 files changed, 4442 insertions(+), 1 deletion(-)
 create mode 100644 gnome-control-center-randr-1.2.diff

diff --git a/gnome-control-center-randr-1.2.diff b/gnome-control-center-randr-1.2.diff
new file mode 100644
index 0000000..323c1f6
--- /dev/null
+++ b/gnome-control-center-randr-1.2.diff
@@ -0,0 +1,4429 @@
+diff --git a/capplets/display/Makefile.am b/capplets/display/Makefile.am
+index b75da5b..193fd65 100644
+--- a/capplets/display/Makefile.am
++++ b/capplets/display/Makefile.am
+@@ -1,9 +1,18 @@
+ # This is used in GNOMECC_CAPPLETS_CFLAGS
+ cappletname = display
+ 
++gladedir = $(pkgdatadir)/glade
++dist_glade_DATA = display-capplet.glade
++
+ bin_PROGRAMS = gnome-display-properties
+ 
+-gnome_display_properties_SOURCES = main.c
++gnome_display_properties_SOURCES =	\
++	xrandr-capplet.c		\
++	scrollarea.c			\
++	foo-marshal.c			\
++	scrollarea.h			\
++	foo-marshal.h
++
+ gnome_display_properties_LDFLAGS = -export-dynamic
+ gnome_display_properties_LDADD = \
+ 	$(DISPLAY_CAPPLET_LIBS) \
+diff --git a/capplets/display/build.sh b/capplets/display/build.sh
+new file mode 100644
+index 0000000..4268ab7
+--- /dev/null
++++ b/capplets/display/build.sh
+@@ -0,0 +1 @@
++gcc -g -Wall `pkg-config --cflags --libs gtk+-2.0 libglade-2.0` -I../ ../randrwrap.c ../monitor-db.c xrandr-capplet.c ../edid-parse.c ../display-name.c scrollarea.c foo-marshal.c -o capplet 
+diff --git a/capplets/display/display-capplet.glade b/capplets/display/display-capplet.glade
+new file mode 100644
+index 0000000..5ccc11f
+--- /dev/null
++++ b/capplets/display/display-capplet.glade
+@@ -0,0 +1,387 @@
++<?xml version="1.0" standalone="no"?> <!--*- mode: xml -*-->
++<!DOCTYPE glade-interface SYSTEM "http://glade.gnome.org/glade-2.0.dtd">
++
++<glade-interface>
++
++<widget class="GtkDialog" id="dialog">
++  <property name="border_width">18</property>
++  <property name="title" translatable="yes">Monitor Resolution Settings</property>
++  <property name="type">GTK_WINDOW_TOPLEVEL</property>
++  <property name="window_position">GTK_WIN_POS_NONE</property>
++  <property name="modal">False</property>
++  <property name="resizable">True</property>
++  <property name="destroy_with_parent">False</property>
++  <property name="decorated">True</property>
++  <property name="skip_taskbar_hint">False</property>
++  <property name="skip_pager_hint">False</property>
++  <property name="type_hint">GDK_WINDOW_TYPE_HINT_DIALOG</property>
++  <property name="gravity">GDK_GRAVITY_NORTH_WEST</property>
++  <property name="focus_on_map">True</property>
++  <property name="urgency_hint">False</property>
++  <property name="has_separator">False</property>
++
++  <child internal-child="vbox">
++    <widget class="GtkVBox" id="dialog-vbox1">
++      <property name="visible">True</property>
++      <property name="homogeneous">False</property>
++      <property name="spacing">0</property>
++
++      <child internal-child="action_area">
++	<widget class="GtkHButtonBox" id="dialog-action_area1">
++	  <property name="visible">True</property>
++	  <property name="layout_style">GTK_BUTTONBOX_END</property>
++
++	  <child>
++	    <widget class="GtkButton" id="helpbutton1">
++	      <property name="visible">True</property>
++	      <property name="can_default">True</property>
++	      <property name="can_focus">True</property>
++	      <property name="label">gtk-help</property>
++	      <property name="use_stock">True</property>
++	      <property name="relief">GTK_RELIEF_NORMAL</property>
++	      <property name="focus_on_click">True</property>
++	      <property name="response_id">-11</property>
++	    </widget>
++	  </child>
++
++	  <child>
++	    <widget class="GtkButton" id="button1">
++	      <property name="visible">True</property>
++	      <property name="can_default">True</property>
++	      <property name="can_focus">True</property>
++	      <property name="label">gtk-apply</property>
++	      <property name="use_stock">True</property>
++	      <property name="relief">GTK_RELIEF_NORMAL</property>
++	      <property name="focus_on_click">True</property>
++	      <property name="response_id">-10</property>
++	    </widget>
++	  </child>
++
++	  <child>
++	    <widget class="GtkButton" id="button2">
++	      <property name="visible">True</property>
++	      <property name="can_default">True</property>
++	      <property name="can_focus">True</property>
++	      <property name="label">gtk-close</property>
++	      <property name="use_stock">True</property>
++	      <property name="relief">GTK_RELIEF_NORMAL</property>
++	      <property name="focus_on_click">True</property>
++	      <property name="response_id">-7</property>
++	    </widget>
++	  </child>
++	</widget>
++	<packing>
++	  <property name="padding">0</property>
++	  <property name="expand">False</property>
++	  <property name="fill">True</property>
++	  <property name="pack_type">GTK_PACK_END</property>
++	</packing>
++      </child>
++
++      <child>
++	<widget class="GtkAlignment" id="alignment2">
++	  <property name="visible">True</property>
++	  <property name="xalign">0.5</property>
++	  <property name="yalign">0.5</property>
++	  <property name="xscale">1</property>
++	  <property name="yscale">1</property>
++	  <property name="top_padding">0</property>
++	  <property name="bottom_padding">24</property>
++	  <property name="left_padding">0</property>
++	  <property name="right_padding">0</property>
++
++	  <child>
++	    <widget class="GtkVBox" id="vbox1">
++	      <property name="visible">True</property>
++	      <property name="homogeneous">False</property>
++	      <property name="spacing">12</property>
++
++	      <child>
++		<widget class="GtkCheckButton" id="clone_checkbox">
++		  <property name="visible">True</property>
++		  <property name="can_focus">True</property>
++		  <property name="label" translatable="yes">Mirror Screens</property>
++		  <property name="use_underline">True</property>
++		  <property name="relief">GTK_RELIEF_NORMAL</property>
++		  <property name="focus_on_click">True</property>
++		  <property name="active">False</property>
++		  <property name="inconsistent">False</property>
++		  <property name="draw_indicator">True</property>
++		</widget>
++		<packing>
++		  <property name="padding">0</property>
++		  <property name="expand">False</property>
++		  <property name="fill">False</property>
++		</packing>
++	      </child>
++
++	      <child>
++		<widget class="GtkAlignment" id="align">
++		  <property name="visible">True</property>
++		  <property name="xalign">0.5</property>
++		  <property name="yalign">0.5</property>
++		  <property name="xscale">1</property>
++		  <property name="yscale">1</property>
++		  <property name="top_padding">0</property>
++		  <property name="bottom_padding">0</property>
++		  <property name="left_padding">0</property>
++		  <property name="right_padding">0</property>
++
++		  <child>
++		    <placeholder/>
++		  </child>
++		</widget>
++		<packing>
++		  <property name="padding">0</property>
++		  <property name="expand">True</property>
++		  <property name="fill">True</property>
++		</packing>
++	      </child>
++
++	      <child>
++		<widget class="GtkAlignment" id="alignment1">
++		  <property name="visible">True</property>
++		  <property name="xalign">0.5</property>
++		  <property name="yalign">0.5</property>
++		  <property name="xscale">1</property>
++		  <property name="yscale">1</property>
++		  <property name="top_padding">12</property>
++		  <property name="bottom_padding">12</property>
++		  <property name="left_padding">24</property>
++		  <property name="right_padding">24</property>
++
++		  <child>
++		    <widget class="GtkTable" id="table1">
++		      <property name="visible">True</property>
++		      <property name="n_rows">2</property>
++		      <property name="n_columns">4</property>
++		      <property name="homogeneous">False</property>
++		      <property name="row_spacing">12</property>
++		      <property name="column_spacing">12</property>
++
++		      <child>
++			<widget class="GtkLabel" id="label2">
++			  <property name="visible">True</property>
++			  <property name="label" translatable="yes">_Resolution</property>
++			  <property name="use_underline">True</property>
++			  <property name="use_markup">False</property>
++			  <property name="justify">GTK_JUSTIFY_LEFT</property>
++			  <property name="wrap">False</property>
++			  <property name="selectable">False</property>
++			  <property name="xalign">0</property>
++			  <property name="yalign">0.5</property>
++			  <property name="xpad">0</property>
++			  <property name="ypad">0</property>
++			  <property name="ellipsize">PANGO_ELLIPSIZE_NONE</property>
++			  <property name="width_chars">-1</property>
++			  <property name="single_line_mode">False</property>
++			  <property name="angle">0</property>
++			</widget>
++			<packing>
++			  <property name="left_attach">0</property>
++			  <property name="right_attach">1</property>
++			  <property name="top_attach">0</property>
++			  <property name="bottom_attach">1</property>
++			  <property name="x_options">fill</property>
++			  <property name="y_options"></property>
++			</packing>
++		      </child>
++
++		      <child>
++			<widget class="GtkLabel" id="label3">
++			  <property name="visible">True</property>
++			  <property name="label" translatable="yes">Re_fresh Rate:</property>
++			  <property name="use_underline">True</property>
++			  <property name="use_markup">False</property>
++			  <property name="justify">GTK_JUSTIFY_LEFT</property>
++			  <property name="wrap">False</property>
++			  <property name="selectable">False</property>
++			  <property name="xalign">0</property>
++			  <property name="yalign">0.5</property>
++			  <property name="xpad">0</property>
++			  <property name="ypad">0</property>
++			  <property name="ellipsize">PANGO_ELLIPSIZE_NONE</property>
++			  <property name="width_chars">-1</property>
++			  <property name="single_line_mode">False</property>
++			  <property name="angle">0</property>
++			</widget>
++			<packing>
++			  <property name="left_attach">0</property>
++			  <property name="right_attach">1</property>
++			  <property name="top_attach">1</property>
++			  <property name="bottom_attach">2</property>
++			  <property name="x_options">fill</property>
++			  <property name="y_options"></property>
++			</packing>
++		      </child>
++
++		      <child>
++			<widget class="GtkComboBox" id="resolution_combo">
++			  <property name="visible">True</property>
++			  <property name="add_tearoffs">False</property>
++			  <property name="focus_on_click">True</property>
++			</widget>
++			<packing>
++			  <property name="left_attach">1</property>
++			  <property name="right_attach">2</property>
++			  <property name="top_attach">0</property>
++			  <property name="bottom_attach">1</property>
++			  <property name="y_options">fill</property>
++			</packing>
++		      </child>
++
++		      <child>
++			<widget class="GtkComboBox" id="refresh_combo">
++			  <property name="visible">True</property>
++			  <property name="add_tearoffs">False</property>
++			  <property name="focus_on_click">True</property>
++			</widget>
++			<packing>
++			  <property name="left_attach">1</property>
++			  <property name="right_attach">2</property>
++			  <property name="top_attach">1</property>
++			  <property name="bottom_attach">2</property>
++			  <property name="x_options">fill</property>
++			  <property name="y_options">fill</property>
++			</packing>
++		      </child>
++
++		      <child>
++			<widget class="GtkLabel" id="panel_label">
++			  <property name="visible">True</property>
++			  <property name="label" translatable="yes">Include _Panel</property>
++			  <property name="use_underline">True</property>
++			  <property name="use_markup">False</property>
++			  <property name="justify">GTK_JUSTIFY_LEFT</property>
++			  <property name="wrap">False</property>
++			  <property name="selectable">False</property>
++			  <property name="xalign">0</property>
++			  <property name="yalign">0.5</property>
++			  <property name="xpad">0</property>
++			  <property name="ypad">0</property>
++			  <property name="mnemonic_widget">panel_checkbox</property>
++			  <property name="ellipsize">PANGO_ELLIPSIZE_NONE</property>
++			  <property name="width_chars">-1</property>
++			  <property name="single_line_mode">False</property>
++			  <property name="angle">0</property>
++			</widget>
++			<packing>
++			  <property name="left_attach">2</property>
++			  <property name="right_attach">3</property>
++			  <property name="top_attach">0</property>
++			  <property name="bottom_attach">1</property>
++			  <property name="x_options">fill</property>
++			  <property name="y_options"></property>
++			</packing>
++		      </child>
++
++		      <child>
++			<widget class="GtkLabel" id="label5">
++			  <property name="visible">True</property>
++			  <property name="label" translatable="yes">R_otation</property>
++			  <property name="use_underline">True</property>
++			  <property name="use_markup">False</property>
++			  <property name="justify">GTK_JUSTIFY_LEFT</property>
++			  <property name="wrap">False</property>
++			  <property name="selectable">False</property>
++			  <property name="xalign">0</property>
++			  <property name="yalign">0.5</property>
++			  <property name="xpad">0</property>
++			  <property name="ypad">0</property>
++			  <property name="ellipsize">PANGO_ELLIPSIZE_NONE</property>
++			  <property name="width_chars">-1</property>
++			  <property name="single_line_mode">False</property>
++			  <property name="angle">0</property>
++			</widget>
++			<packing>
++			  <property name="left_attach">2</property>
++			  <property name="right_attach">3</property>
++			  <property name="top_attach">1</property>
++			  <property name="bottom_attach">2</property>
++			  <property name="x_options">fill</property>
++			  <property name="y_options"></property>
++			</packing>
++		      </child>
++
++		      <child>
++			<widget class="GtkComboBox" id="rotation_combo">
++			  <property name="visible">True</property>
++			  <property name="items" translatable="yes">Normal
++Left
++Right
++Upside-down
++</property>
++			  <property name="add_tearoffs">False</property>
++			  <property name="focus_on_click">True</property>
++			</widget>
++			<packing>
++			  <property name="left_attach">3</property>
++			  <property name="right_attach">4</property>
++			  <property name="top_attach">1</property>
++			  <property name="bottom_attach">2</property>
++			  <property name="y_options">fill</property>
++			</packing>
++		      </child>
++
++		      <child>
++			<widget class="GtkCheckButton" id="panel_checkbox">
++			  <property name="visible">True</property>
++			  <property name="can_focus">True</property>
++			  <property name="relief">GTK_RELIEF_NORMAL</property>
++			  <property name="focus_on_click">True</property>
++			  <property name="active">False</property>
++			  <property name="inconsistent">False</property>
++			  <property name="draw_indicator">True</property>
++
++			  <child>
++			    <placeholder/>
++			  </child>
++			</widget>
++			<packing>
++			  <property name="left_attach">3</property>
++			  <property name="right_attach">4</property>
++			  <property name="top_attach">0</property>
++			  <property name="bottom_attach">1</property>
++			  <property name="x_options">fill</property>
++			  <property name="y_options"></property>
++			</packing>
++		      </child>
++		    </widget>
++		  </child>
++		</widget>
++		<packing>
++		  <property name="padding">0</property>
++		  <property name="expand">False</property>
++		  <property name="fill">True</property>
++		</packing>
++	      </child>
++
++	      <child>
++		<widget class="GtkButton" id="detect_displays_button">
++		  <property name="visible">True</property>
++		  <property name="can_focus">True</property>
++		  <property name="label" translatable="yes">_Detect Displays</property>
++		  <property name="use_underline">True</property>
++		  <property name="relief">GTK_RELIEF_NORMAL</property>
++		  <property name="focus_on_click">True</property>
++		</widget>
++		<packing>
++		  <property name="padding">0</property>
++		  <property name="expand">False</property>
++		  <property name="fill">False</property>
++		</packing>
++	      </child>
++	    </widget>
++	  </child>
++	</widget>
++	<packing>
++	  <property name="padding">0</property>
++	  <property name="expand">True</property>
++	  <property name="fill">True</property>
++	</packing>
++      </child>
++    </widget>
++  </child>
++</widget>
++
++</glade-interface>
+diff --git a/capplets/display/foo-marshal.c b/capplets/display/foo-marshal.c
+new file mode 100644
+index 0000000..a40b086
+--- /dev/null
++++ b/capplets/display/foo-marshal.c
+@@ -0,0 +1,279 @@
++
++#include	<glib-object.h>
++
++
++#ifdef G_ENABLE_DEBUG
++#define g_marshal_value_peek_boolean(v)  g_value_get_boolean (v)
++#define g_marshal_value_peek_char(v)     g_value_get_char (v)
++#define g_marshal_value_peek_uchar(v)    g_value_get_uchar (v)
++#define g_marshal_value_peek_int(v)      g_value_get_int (v)
++#define g_marshal_value_peek_uint(v)     g_value_get_uint (v)
++#define g_marshal_value_peek_long(v)     g_value_get_long (v)
++#define g_marshal_value_peek_ulong(v)    g_value_get_ulong (v)
++#define g_marshal_value_peek_int64(v)    g_value_get_int64 (v)
++#define g_marshal_value_peek_uint64(v)   g_value_get_uint64 (v)
++#define g_marshal_value_peek_enum(v)     g_value_get_enum (v)
++#define g_marshal_value_peek_flags(v)    g_value_get_flags (v)
++#define g_marshal_value_peek_float(v)    g_value_get_float (v)
++#define g_marshal_value_peek_double(v)   g_value_get_double (v)
++#define g_marshal_value_peek_string(v)   (char*) g_value_get_string (v)
++#define g_marshal_value_peek_param(v)    g_value_get_param (v)
++#define g_marshal_value_peek_boxed(v)    g_value_get_boxed (v)
++#define g_marshal_value_peek_pointer(v)  g_value_get_pointer (v)
++#define g_marshal_value_peek_object(v)   g_value_get_object (v)
++#else /* !G_ENABLE_DEBUG */
++/* WARNING: This code accesses GValues directly, which is UNSUPPORTED API.
++ *          Do not access GValues directly in your code. Instead, use the
++ *          g_value_get_*() functions
++ */
++#define g_marshal_value_peek_boolean(v)  (v)->data[0].v_int
++#define g_marshal_value_peek_char(v)     (v)->data[0].v_int
++#define g_marshal_value_peek_uchar(v)    (v)->data[0].v_uint
++#define g_marshal_value_peek_int(v)      (v)->data[0].v_int
++#define g_marshal_value_peek_uint(v)     (v)->data[0].v_uint
++#define g_marshal_value_peek_long(v)     (v)->data[0].v_long
++#define g_marshal_value_peek_ulong(v)    (v)->data[0].v_ulong
++#define g_marshal_value_peek_int64(v)    (v)->data[0].v_int64
++#define g_marshal_value_peek_uint64(v)   (v)->data[0].v_uint64
++#define g_marshal_value_peek_enum(v)     (v)->data[0].v_long
++#define g_marshal_value_peek_flags(v)    (v)->data[0].v_ulong
++#define g_marshal_value_peek_float(v)    (v)->data[0].v_float
++#define g_marshal_value_peek_double(v)   (v)->data[0].v_double
++#define g_marshal_value_peek_string(v)   (v)->data[0].v_pointer
++#define g_marshal_value_peek_param(v)    (v)->data[0].v_pointer
++#define g_marshal_value_peek_boxed(v)    (v)->data[0].v_pointer
++#define g_marshal_value_peek_pointer(v)  (v)->data[0].v_pointer
++#define g_marshal_value_peek_object(v)   (v)->data[0].v_pointer
++#endif /* !G_ENABLE_DEBUG */
++
++
++/* VOID:OBJECT,OBJECT (marshal.list:1) */
++void
++foo_marshal_VOID__OBJECT_OBJECT (GClosure     *closure,
++                                 GValue       *return_value G_GNUC_UNUSED,
++                                 guint         n_param_values,
++                                 const GValue *param_values,
++                                 gpointer      invocation_hint G_GNUC_UNUSED,
++                                 gpointer      marshal_data)
++{
++  typedef void (*GMarshalFunc_VOID__OBJECT_OBJECT) (gpointer     data1,
++                                                    gpointer     arg_1,
++                                                    gpointer     arg_2,
++                                                    gpointer     data2);
++  register GMarshalFunc_VOID__OBJECT_OBJECT callback;
++  register GCClosure *cc = (GCClosure*) closure;
++  register gpointer data1, data2;
++
++  g_return_if_fail (n_param_values == 3);
++
++  if (G_CCLOSURE_SWAP_DATA (closure))
++    {
++      data1 = closure->data;
++      data2 = g_value_peek_pointer (param_values + 0);
++    }
++  else
++    {
++      data1 = g_value_peek_pointer (param_values + 0);
++      data2 = closure->data;
++    }
++  callback = (GMarshalFunc_VOID__OBJECT_OBJECT) (marshal_data ? marshal_data : cc->callback);
++
++  callback (data1,
++            g_marshal_value_peek_object (param_values + 1),
++            g_marshal_value_peek_object (param_values + 2),
++            data2);
++}
++
++/* VOID:UINT,UINT,UINT,UINT (marshal.list:2) */
++void
++foo_marshal_VOID__UINT_UINT_UINT_UINT (GClosure     *closure,
++                                       GValue       *return_value G_GNUC_UNUSED,
++                                       guint         n_param_values,
++                                       const GValue *param_values,
++                                       gpointer      invocation_hint G_GNUC_UNUSED,
++                                       gpointer      marshal_data)
++{
++  typedef void (*GMarshalFunc_VOID__UINT_UINT_UINT_UINT) (gpointer     data1,
++                                                          guint        arg_1,
++                                                          guint        arg_2,
++                                                          guint        arg_3,
++                                                          guint        arg_4,
++                                                          gpointer     data2);
++  register GMarshalFunc_VOID__UINT_UINT_UINT_UINT callback;
++  register GCClosure *cc = (GCClosure*) closure;
++  register gpointer data1, data2;
++
++  g_return_if_fail (n_param_values == 5);
++
++  if (G_CCLOSURE_SWAP_DATA (closure))
++    {
++      data1 = closure->data;
++      data2 = g_value_peek_pointer (param_values + 0);
++    }
++  else
++    {
++      data1 = g_value_peek_pointer (param_values + 0);
++      data2 = closure->data;
++    }
++  callback = (GMarshalFunc_VOID__UINT_UINT_UINT_UINT) (marshal_data ? marshal_data : cc->callback);
++
++  callback (data1,
++            g_marshal_value_peek_uint (param_values + 1),
++            g_marshal_value_peek_uint (param_values + 2),
++            g_marshal_value_peek_uint (param_values + 3),
++            g_marshal_value_peek_uint (param_values + 4),
++            data2);
++}
++
++/* VOID:UINT,UINT (marshal.list:3) */
++void
++foo_marshal_VOID__UINT_UINT (GClosure     *closure,
++                             GValue       *return_value G_GNUC_UNUSED,
++                             guint         n_param_values,
++                             const GValue *param_values,
++                             gpointer      invocation_hint G_GNUC_UNUSED,
++                             gpointer      marshal_data)
++{
++  typedef void (*GMarshalFunc_VOID__UINT_UINT) (gpointer     data1,
++                                                guint        arg_1,
++                                                guint        arg_2,
++                                                gpointer     data2);
++  register GMarshalFunc_VOID__UINT_UINT callback;
++  register GCClosure *cc = (GCClosure*) closure;
++  register gpointer data1, data2;
++
++  g_return_if_fail (n_param_values == 3);
++
++  if (G_CCLOSURE_SWAP_DATA (closure))
++    {
++      data1 = closure->data;
++      data2 = g_value_peek_pointer (param_values + 0);
++    }
++  else
++    {
++      data1 = g_value_peek_pointer (param_values + 0);
++      data2 = closure->data;
++    }
++  callback = (GMarshalFunc_VOID__UINT_UINT) (marshal_data ? marshal_data : cc->callback);
++
++  callback (data1,
++            g_marshal_value_peek_uint (param_values + 1),
++            g_marshal_value_peek_uint (param_values + 2),
++            data2);
++}
++
++/* VOID:BOXED (marshal.list:4) */
++
++/* VOID:BOXED,BOXED (marshal.list:5) */
++void
++foo_marshal_VOID__BOXED_BOXED (GClosure     *closure,
++                               GValue       *return_value G_GNUC_UNUSED,
++                               guint         n_param_values,
++                               const GValue *param_values,
++                               gpointer      invocation_hint G_GNUC_UNUSED,
++                               gpointer      marshal_data)
++{
++  typedef void (*GMarshalFunc_VOID__BOXED_BOXED) (gpointer     data1,
++                                                  gpointer     arg_1,
++                                                  gpointer     arg_2,
++                                                  gpointer     data2);
++  register GMarshalFunc_VOID__BOXED_BOXED callback;
++  register GCClosure *cc = (GCClosure*) closure;
++  register gpointer data1, data2;
++
++  g_return_if_fail (n_param_values == 3);
++
++  if (G_CCLOSURE_SWAP_DATA (closure))
++    {
++      data1 = closure->data;
++      data2 = g_value_peek_pointer (param_values + 0);
++    }
++  else
++    {
++      data1 = g_value_peek_pointer (param_values + 0);
++      data2 = closure->data;
++    }
++  callback = (GMarshalFunc_VOID__BOXED_BOXED) (marshal_data ? marshal_data : cc->callback);
++
++  callback (data1,
++            g_marshal_value_peek_boxed (param_values + 1),
++            g_marshal_value_peek_boxed (param_values + 2),
++            data2);
++}
++
++/* VOID:POINTER,BOXED,POINTER (marshal.list:6) */
++void
++foo_marshal_VOID__POINTER_BOXED_POINTER (GClosure     *closure,
++                                         GValue       *return_value G_GNUC_UNUSED,
++                                         guint         n_param_values,
++                                         const GValue *param_values,
++                                         gpointer      invocation_hint G_GNUC_UNUSED,
++                                         gpointer      marshal_data)
++{
++  typedef void (*GMarshalFunc_VOID__POINTER_BOXED_POINTER) (gpointer     data1,
++                                                            gpointer     arg_1,
++                                                            gpointer     arg_2,
++                                                            gpointer     arg_3,
++                                                            gpointer     data2);
++  register GMarshalFunc_VOID__POINTER_BOXED_POINTER callback;
++  register GCClosure *cc = (GCClosure*) closure;
++  register gpointer data1, data2;
++
++  g_return_if_fail (n_param_values == 4);
++
++  if (G_CCLOSURE_SWAP_DATA (closure))
++    {
++      data1 = closure->data;
++      data2 = g_value_peek_pointer (param_values + 0);
++    }
++  else
++    {
++      data1 = g_value_peek_pointer (param_values + 0);
++      data2 = closure->data;
++    }
++  callback = (GMarshalFunc_VOID__POINTER_BOXED_POINTER) (marshal_data ? marshal_data : cc->callback);
++
++  callback (data1,
++            g_marshal_value_peek_pointer (param_values + 1),
++            g_marshal_value_peek_boxed (param_values + 2),
++            g_marshal_value_peek_pointer (param_values + 3),
++            data2);
++}
++
++/* VOID:POINTER,POINTER (marshal.list:7) */
++void
++foo_marshal_VOID__POINTER_POINTER (GClosure     *closure,
++                                   GValue       *return_value G_GNUC_UNUSED,
++                                   guint         n_param_values,
++                                   const GValue *param_values,
++                                   gpointer      invocation_hint G_GNUC_UNUSED,
++                                   gpointer      marshal_data)
++{
++  typedef void (*GMarshalFunc_VOID__POINTER_POINTER) (gpointer     data1,
++                                                      gpointer     arg_1,
++                                                      gpointer     arg_2,
++                                                      gpointer     data2);
++  register GMarshalFunc_VOID__POINTER_POINTER callback;
++  register GCClosure *cc = (GCClosure*) closure;
++  register gpointer data1, data2;
++
++  g_return_if_fail (n_param_values == 3);
++
++  if (G_CCLOSURE_SWAP_DATA (closure))
++    {
++      data1 = closure->data;
++      data2 = g_value_peek_pointer (param_values + 0);
++    }
++  else
++    {
++      data1 = g_value_peek_pointer (param_values + 0);
++      data2 = closure->data;
++    }
++  callback = (GMarshalFunc_VOID__POINTER_POINTER) (marshal_data ? marshal_data : cc->callback);
++
++  callback (data1,
++            g_marshal_value_peek_pointer (param_values + 1),
++            g_marshal_value_peek_pointer (param_values + 2),
++            data2);
++}
++
+diff --git a/capplets/display/foo-marshal.h b/capplets/display/foo-marshal.h
+new file mode 100644
+index 0000000..59d9261
+--- /dev/null
++++ b/capplets/display/foo-marshal.h
+@@ -0,0 +1,63 @@
++
++#ifndef __foo_marshal_MARSHAL_H__
++#define __foo_marshal_MARSHAL_H__
++
++#include	<glib-object.h>
++
++G_BEGIN_DECLS
++
++/* VOID:OBJECT,OBJECT (marshal.list:1) */
++extern void foo_marshal_VOID__OBJECT_OBJECT (GClosure     *closure,
++                                             GValue       *return_value,
++                                             guint         n_param_values,
++                                             const GValue *param_values,
++                                             gpointer      invocation_hint,
++                                             gpointer      marshal_data);
++
++/* VOID:UINT,UINT,UINT,UINT (marshal.list:2) */
++extern void foo_marshal_VOID__UINT_UINT_UINT_UINT (GClosure     *closure,
++                                                   GValue       *return_value,
++                                                   guint         n_param_values,
++                                                   const GValue *param_values,
++                                                   gpointer      invocation_hint,
++                                                   gpointer      marshal_data);
++
++/* VOID:UINT,UINT (marshal.list:3) */
++extern void foo_marshal_VOID__UINT_UINT (GClosure     *closure,
++                                         GValue       *return_value,
++                                         guint         n_param_values,
++                                         const GValue *param_values,
++                                         gpointer      invocation_hint,
++                                         gpointer      marshal_data);
++
++/* VOID:BOXED (marshal.list:4) */
++#define foo_marshal_VOID__BOXED	g_cclosure_marshal_VOID__BOXED
++
++/* VOID:BOXED,BOXED (marshal.list:5) */
++extern void foo_marshal_VOID__BOXED_BOXED (GClosure     *closure,
++                                           GValue       *return_value,
++                                           guint         n_param_values,
++                                           const GValue *param_values,
++                                           gpointer      invocation_hint,
++                                           gpointer      marshal_data);
++
++/* VOID:POINTER,BOXED,POINTER (marshal.list:6) */
++extern void foo_marshal_VOID__POINTER_BOXED_POINTER (GClosure     *closure,
++                                                     GValue       *return_value,
++                                                     guint         n_param_values,
++                                                     const GValue *param_values,
++                                                     gpointer      invocation_hint,
++                                                     gpointer      marshal_data);
++
++/* VOID:POINTER,POINTER (marshal.list:7) */
++extern void foo_marshal_VOID__POINTER_POINTER (GClosure     *closure,
++                                               GValue       *return_value,
++                                               guint         n_param_values,
++                                               const GValue *param_values,
++                                               gpointer      invocation_hint,
++                                               gpointer      marshal_data);
++
++G_END_DECLS
++
++#endif /* __foo_marshal_MARSHAL_H__ */
++
+diff --git a/capplets/display/scrollarea.c b/capplets/display/scrollarea.c
+new file mode 100644
+index 0000000..5368373
+--- /dev/null
++++ b/capplets/display/scrollarea.c
+@@ -0,0 +1,1902 @@
++#include <gdk/gdkprivate.h> /* For GDK_PARENT_RELATIVE_BG */
++#include "scrollarea.h"
++#include "foo-marshal.h"
++
++G_DEFINE_TYPE (FooScrollArea, foo_scroll_area, GTK_TYPE_CONTAINER);
++
++static GtkWidgetClass *parent_class;
++
++typedef struct BackingStore BackingStore;
++
++typedef void (* ExposeFunc) (cairo_t *cr, GdkRegion *region, gpointer data);
++
++#if 0
++static void          backing_store_draw (BackingStore *store, 
++					 GdkDrawable *dest,
++					 GdkRegion *clip,
++					 int dest_x,
++					 int dest_y);
++static void          backing_store_scroll (BackingStore *store,
++					   int dx, int dy);
++static void          backing_store_invalidate_rect (BackingStore *store,
++						    GdkRectangle *rect);
++static void          backing_store_invalidate_region (BackingStore *store,
++						      GdkRegion *region);
++static void          backing_store_invalidate_all (BackingStore *store);
++static BackingStore *backing_store_new (GdkWindow *window,
++					int width, int height);
++static void          backing_store_resize (BackingStore *store,
++					   int width, int height);
++static void          backing_store_process_updates (BackingStore *store,
++						    ExposeFunc func,
++						    gpointer data);
++static void	     backing_store_free (BackingStore *store);
++#endif
++
++typedef struct InputPath InputPath;
++typedef struct InputRegion InputRegion;
++typedef struct AutoScrollInfo AutoScrollInfo;
++
++struct InputPath
++{
++    gboolean			is_stroke;
++    cairo_fill_rule_t		fill_rule;
++    double			line_width;
++    cairo_path_t	       *path;		/* In canvas coordinates */
++
++    FooScrollAreaEventFunc	func;
++    gpointer			data;
++
++    InputPath		       *next;
++};
++
++/* InputRegions are mutually disjoint */
++struct InputRegion
++{
++    GdkRegion *region;		/* the boundary of this area in canvas coordinates */
++    InputPath *paths;
++};
++
++struct AutoScrollInfo
++{
++    int				dx;
++    int				dy;
++    int				timeout_id;
++    int				begin_x;
++    int				begin_y;
++    double			res_x;
++    double			res_y;
++    GTimer		       *timer;
++};
++
++struct FooScrollAreaPrivate
++{
++    GdkWindow		       *input_window;
++    
++    int				width;
++    int				height;
++    
++    GtkAdjustment	       *hadj;
++    GtkAdjustment	       *vadj;
++    int			        x_offset;
++    int				y_offset;
++    
++    int				min_width;
++    int				min_height;
++
++    GPtrArray		       *input_regions;
++    
++    AutoScrollInfo	       *auto_scroll_info;
++    
++    /* During expose, this region is set to the region
++     * being exposed. At other times, it is NULL
++     *
++     * It is used for clipping of input areas
++     */
++    GdkRegion		       *expose_region;
++    InputRegion		       *current_input;
++    
++    gboolean			grabbed;
++    FooScrollAreaEventFunc	grab_func;
++    gpointer			grab_data;
++
++    GdkPixmap		       *pixmap;
++    GdkRegion		       *update_region;		/* In canvas coordinates */
++};
++
++enum
++{
++    VIEWPORT_CHANGED,
++    PAINT,
++    INPUT,
++    LAST_SIGNAL,
++};
++
++static guint signals [LAST_SIGNAL] = { 0 };
++
++static void foo_scroll_area_size_request (GtkWidget *widget,
++					  GtkRequisition *requisition);
++static gboolean foo_scroll_area_expose (GtkWidget *widget,
++					GdkEventExpose *expose);
++static void foo_scroll_area_size_allocate (GtkWidget *widget,
++					   GtkAllocation *allocation);
++static void foo_scroll_area_set_scroll_adjustments (FooScrollArea *scroll_area,
++						    GtkAdjustment    *hadjustment,
++						    GtkAdjustment    *vadjustment);
++static void foo_scroll_area_realize (GtkWidget *widget);
++static void foo_scroll_area_unrealize (GtkWidget *widget);
++static void foo_scroll_area_map (GtkWidget *widget);
++static void foo_scroll_area_unmap (GtkWidget *widget);
++static gboolean foo_scroll_area_button_press (GtkWidget *widget,
++					      GdkEventButton *event);
++static gboolean foo_scroll_area_button_release (GtkWidget *widget,
++						GdkEventButton *event);
++static gboolean foo_scroll_area_motion (GtkWidget *widget,
++					GdkEventMotion *event);
++
++static void
++foo_scroll_area_map (GtkWidget *widget)
++{
++    FooScrollArea *area = FOO_SCROLL_AREA (widget);
++    
++    GTK_WIDGET_CLASS (parent_class)->map (widget);
++    
++    if (area->priv->input_window)
++	gdk_window_show (area->priv->input_window);
++}
++
++static void
++foo_scroll_area_unmap (GtkWidget *widget)
++{
++    FooScrollArea *area = FOO_SCROLL_AREA (widget);
++    
++    if (area->priv->input_window)
++	gdk_window_hide (area->priv->input_window);
++    
++    GTK_WIDGET_CLASS (parent_class)->unmap (widget);
++}
++
++static void
++foo_scroll_area_finalize (GObject *object)
++{
++    FooScrollArea *scroll_area = FOO_SCROLL_AREA (object);
++    
++    g_object_unref (scroll_area->priv->hadj);
++    g_object_unref (scroll_area->priv->vadj);
++    
++    g_ptr_array_free (scroll_area->priv->input_regions, TRUE);
++    
++    g_free (scroll_area->priv);
++
++    G_OBJECT_CLASS (foo_scroll_area_parent_class)->finalize (object);
++}
++
++static void
++foo_scroll_area_class_init (FooScrollAreaClass *class)
++{
++    GObjectClass *object_class = G_OBJECT_CLASS (class);
++    GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
++    
++    object_class->finalize = foo_scroll_area_finalize;
++    widget_class->size_request = foo_scroll_area_size_request;
++    widget_class->expose_event = foo_scroll_area_expose;
++    widget_class->size_allocate = foo_scroll_area_size_allocate;
++    widget_class->realize = foo_scroll_area_realize;
++    widget_class->unrealize = foo_scroll_area_unrealize;
++    widget_class->button_press_event = foo_scroll_area_button_press;
++    widget_class->button_release_event = foo_scroll_area_button_release;
++    widget_class->motion_notify_event = foo_scroll_area_motion;
++    widget_class->map = foo_scroll_area_map;
++    widget_class->unmap = foo_scroll_area_unmap;
++    
++    class->set_scroll_adjustments = foo_scroll_area_set_scroll_adjustments;
++    
++    parent_class = g_type_class_peek_parent (class);
++    
++    signals[VIEWPORT_CHANGED] =
++	g_signal_new ("viewport_changed",
++		      G_OBJECT_CLASS_TYPE (object_class),
++		      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
++		      G_STRUCT_OFFSET (FooScrollAreaClass,
++				       viewport_changed),
++		      NULL, NULL,
++		      foo_marshal_VOID__BOXED_BOXED,
++		      G_TYPE_NONE, 2,
++		      GDK_TYPE_RECTANGLE,
++		      GDK_TYPE_RECTANGLE);
++    
++    signals[PAINT] =
++	g_signal_new ("paint",
++		      G_OBJECT_CLASS_TYPE (object_class),
++		      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
++		      G_STRUCT_OFFSET (FooScrollAreaClass,
++				       paint),
++		      NULL, NULL,
++		      foo_marshal_VOID__POINTER_BOXED_POINTER,
++		      G_TYPE_NONE, 3,
++		      G_TYPE_POINTER,
++		      GDK_TYPE_RECTANGLE, 
++		      G_TYPE_POINTER);
++    
++    widget_class->set_scroll_adjustments_signal =
++	g_signal_new ("set_scroll_adjustments",
++		      G_OBJECT_CLASS_TYPE (object_class),
++		      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
++		      G_STRUCT_OFFSET (FooScrollAreaClass,
++				       set_scroll_adjustments),
++		      NULL, NULL,
++		      foo_marshal_VOID__OBJECT_OBJECT,
++		      G_TYPE_NONE, 2,
++		      GTK_TYPE_ADJUSTMENT,
++		      GTK_TYPE_ADJUSTMENT);
++}
++
++static GtkAdjustment *
++new_adjustment (void)
++{
++    return GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
++}
++
++static void
++foo_scroll_area_init (FooScrollArea *scroll_area)
++{
++    GTK_WIDGET_SET_FLAGS (scroll_area, GTK_NO_WINDOW);
++    
++    gtk_widget_set_redraw_on_allocate (GTK_WIDGET (scroll_area), FALSE);
++    
++    scroll_area->priv = g_new0 (FooScrollAreaPrivate, 1);
++    scroll_area->priv->width = 0;
++    scroll_area->priv->height = 0;
++    scroll_area->priv->hadj = g_object_ref_sink (new_adjustment());
++    scroll_area->priv->vadj = g_object_ref_sink (new_adjustment());
++    scroll_area->priv->x_offset = 0.0;
++    scroll_area->priv->y_offset = 0.0;
++    scroll_area->priv->min_width = -1;
++    scroll_area->priv->min_height = -1;
++    scroll_area->priv->auto_scroll_info = NULL;
++    scroll_area->priv->input_regions = g_ptr_array_new ();
++    scroll_area->priv->pixmap = NULL;
++    scroll_area->priv->update_region = gdk_region_new ();
++
++    gtk_widget_set_double_buffered (GTK_WIDGET (scroll_area), FALSE);
++}
++
++static void
++translate_cairo_device (cairo_t       *cr,
++			int            x_offset,
++			int            y_offset)
++{
++    cairo_surface_t *surface = cairo_get_target (cr);
++    double dev_x;
++    double dev_y;
++    
++    cairo_surface_get_device_offset (surface, &dev_x, &dev_y);
++    dev_x += x_offset;
++    dev_y += y_offset;
++    cairo_surface_set_device_offset (surface, dev_x, dev_y);
++}
++
++#if 0
++static void
++print_region (const char *header, GdkRegion *region)
++{
++    GdkRectangle *rects;
++    int n_rects;
++    int i;
++    
++    g_print ("%s\n", header);
++    
++    gdk_region_get_rectangles (region, &rects, &n_rects);
++    for (i = 0; i < n_rects; ++i)
++    {
++	GdkRectangle *rect = &(rects[i]);
++	g_print ("  %d %d %d %d\n",
++		 rect->x, rect->y, rect->width, rect->height);
++    }
++}
++#endif
++
++typedef void (* PathForeachFunc) (double  *x,
++				  double  *y,
++				  gpointer data);
++
++static void
++path_foreach_point (cairo_path_t     *path,
++		    PathForeachFunc   func,
++		    gpointer	      user_data)
++{
++    int i;
++    
++    for (i = 0; i < path->num_data; i += path->data[i].header.length)
++    {
++	cairo_path_data_t *data = &(path->data[i]);
++	
++	switch (data->header.type)
++	{
++	case CAIRO_PATH_MOVE_TO:
++	case CAIRO_PATH_LINE_TO:
++	    func (&(data[1].point.x), &(data[1].point.y), user_data);
++	    break;
++	    
++	case CAIRO_PATH_CURVE_TO:
++	    func (&(data[1].point.x), &(data[1].point.y), user_data);
++	    func (&(data[2].point.x), &(data[2].point.y), user_data);
++	    func (&(data[3].point.x), &(data[3].point.y), user_data);
++	    break;
++	    
++	case CAIRO_PATH_CLOSE_PATH:
++	    break;
++	}
++    }
++}
++
++typedef struct
++{
++    double x1, y1, x2, y2;
++} Box;
++
++#if 0
++static void
++update_box (double *x, double *y, gpointer data)
++{
++    Box *box = data;
++    
++    if (*x < box->x1)
++	box->x1 = *x;
++
++    if (*y < box->y1)
++	box->y1 = *y;
++
++    if (*y > box->y2)
++	box->y2 = *y;
++    
++    if (*x > box->x2)
++	box->x2 = *x;
++}
++#endif
++
++#if 0
++static void
++path_compute_extents (cairo_path_t *path,
++		      GdkRectangle *rect)
++{
++    if (rect)
++    {
++	Box box = { G_MAXDOUBLE, G_MAXDOUBLE, G_MINDOUBLE, G_MINDOUBLE };
++
++	path_foreach_point (path, update_box, &box);
++
++	rect->x = box.x1;
++	rect->y = box.y1;
++	rect->width = box.x2 - box.x1;
++	rect->height = box.y2 - box.y1;
++    }
++}
++#endif
++
++static void
++input_path_free_list (InputPath *paths)
++{
++    if (!paths)
++	return;
++
++    input_path_free_list (paths->next);
++    cairo_path_destroy (paths->path);
++    g_free (paths);
++}
++
++static void
++input_region_free (InputRegion *region)
++{
++    input_path_free_list (region->paths);
++    gdk_region_destroy (region->region);
++
++    g_free (region);
++}
++
++static void
++get_viewport (FooScrollArea *scroll_area,
++	      GdkRectangle  *viewport)
++{
++    GtkWidget *widget = GTK_WIDGET (scroll_area);
++    
++    viewport->x = scroll_area->priv->x_offset;
++    viewport->y = scroll_area->priv->y_offset;
++    viewport->width = widget->allocation.width;
++    viewport->height = widget->allocation.height;
++}
++
++static void
++allocation_to_canvas (FooScrollArea *area,
++		      int           *x,
++		      int           *y)
++{
++    *x += area->priv->x_offset;
++    *y += area->priv->y_offset;
++}
++
++static void
++clear_exposed_input_region (FooScrollArea *area,
++			    GdkRegion *exposed)	/* in canvas coordinates */
++{
++    int i;
++    GdkRegion *viewport;
++    GdkRectangle allocation;
++
++    allocation = GTK_WIDGET (area)->allocation;
++    allocation.x = 0;
++    allocation.y = 0;
++    allocation_to_canvas (area, &allocation.x, &allocation.y);
++    viewport = gdk_region_rectangle (&allocation);
++    gdk_region_subtract (viewport, exposed);
++    
++    for (i = 0; i < area->priv->input_regions->len; ++i)
++    {
++	InputRegion *region = area->priv->input_regions->pdata[i];
++
++	gdk_region_intersect (region->region, viewport);
++
++	if (gdk_region_empty (region->region))
++	{
++	    input_region_free (region);
++	    g_ptr_array_remove_index_fast (area->priv->input_regions, i--);
++	}
++    }
++
++    gdk_region_destroy (viewport);
++    
++#if 0
++	path = region->paths;
++	while (path != NULL)
++	{
++	    GdkRectangle rect;
++
++	    path_compute_extents (path->path, &rect);
++
++	    if (gdk_region_rect_in (area->priv->expose_region, &rect) == GDK_OVERLAP_RECTANGLE_IN)
++		g_print ("we would have deleted it\n");
++#if 0
++	    else
++		g_print ("nope (%d %d %d %d)\n", );
++#endif
++	    
++	    path = path->next;
++	}
++	
++	/* FIXME: we should also delete paths (and path segments)
++	 * completely contained in the expose_region
++	 */
++    }
++#endif
++}
++
++static void
++setup_background_cr (GdkWindow *window,
++		     cairo_t   *cr,
++		     int        x_offset,
++		     int        y_offset)
++{
++    GdkWindowObject *private = (GdkWindowObject *)window;
++    
++    if (private->bg_pixmap == GDK_PARENT_RELATIVE_BG && private->parent)
++    {
++	x_offset += private->x;
++	y_offset += private->y;
++	
++	setup_background_cr (GDK_WINDOW (private->parent), cr, x_offset, y_offset);
++    }
++    else if (private->bg_pixmap &&
++	     private->bg_pixmap != GDK_PARENT_RELATIVE_BG &&
++	     private->bg_pixmap != GDK_NO_BG)
++    {
++	gdk_cairo_set_source_pixmap (cr, private->bg_pixmap, -x_offset, -y_offset);
++    }
++    else
++    {
++	gdk_cairo_set_source_color (cr, &private->bg_color);
++    }
++}
++
++static void
++initialize_background (GtkWidget *widget,
++		       cairo_t   *cr)
++{
++    setup_background_cr (widget->window, cr, 0, 0);
++
++    cairo_paint (cr);
++}
++
++static void
++clip_to_region (cairo_t *cr, GdkRegion *region)
++{
++    int n_rects;
++    GdkRectangle *rects;
++
++    gdk_region_get_rectangles (region, &rects, &n_rects);
++
++    cairo_new_path (cr);
++    while (n_rects--)
++    {
++	GdkRectangle *rect = &(rects[n_rects]);
++
++	cairo_rectangle (cr, rect->x, rect->y, rect->width, rect->height);
++    }
++    cairo_clip (cr);
++
++    g_free (rects);
++}
++
++static void
++simple_draw_drawable (GdkDrawable *dst,
++		      GdkDrawable *src,
++		      int	   src_x,
++		      int	   src_y,
++		      int          dst_x,
++		      int          dst_y,
++		      int          width,
++		      int          height)
++{
++    GdkGC *gc = gdk_gc_new (dst);
++
++    gdk_draw_drawable (dst, gc, src, src_x, src_y, dst_x, dst_y, width, height);
++
++    g_object_unref (gc);
++}
++
++static gboolean
++foo_scroll_area_expose (GtkWidget *widget,
++			GdkEventExpose *expose)
++{
++    FooScrollArea *scroll_area = FOO_SCROLL_AREA (widget);
++    cairo_t *cr;
++    GdkRectangle extents;
++    GdkRegion *region;
++    int x_offset, y_offset;
++    GdkGC *gc;
++    
++    /* I don't think expose can ever recurse for the same area */
++    g_assert (!scroll_area->priv->expose_region);
++    
++    /* Note that this function can be called at a time
++     * where the adj->value is different from x_offset. 
++     * Ie., the GtkScrolledWindow changed the adj->value
++     * without emitting the value_changed signal. 
++     *
++     * Hence we must always use the value we got 
++     * the last time the signal was emitted, ie.,
++     * priv->{x,y}_offset.
++     */
++    
++    x_offset = scroll_area->priv->x_offset;
++    y_offset = scroll_area->priv->y_offset;
++    
++    scroll_area->priv->expose_region = expose->region;
++
++    /* Setup input areas */
++    clear_exposed_input_region (scroll_area, scroll_area->priv->update_region);
++    
++    scroll_area->priv->current_input = g_new0 (InputRegion, 1);
++    scroll_area->priv->current_input->region = gdk_region_copy (scroll_area->priv->update_region);
++    scroll_area->priv->current_input->paths = NULL;
++    g_ptr_array_add (scroll_area->priv->input_regions,
++		     scroll_area->priv->current_input);
++
++    region = scroll_area->priv->update_region;
++    scroll_area->priv->update_region = gdk_region_new ();
++    
++    /* Create cairo context */
++    cr = gdk_cairo_create (scroll_area->priv->pixmap);
++    translate_cairo_device (cr, -x_offset, -y_offset);
++    clip_to_region (cr, region);
++    initialize_background (widget, cr);
++
++    /* Create regions */
++    gdk_region_get_clipbox (region, &extents);
++
++    g_signal_emit (widget, signals[PAINT], 0, cr, &extents, region);
++
++    /* Destroy stuff */
++    cairo_destroy (cr);
++    
++    scroll_area->priv->expose_region = NULL;
++    scroll_area->priv->current_input = NULL;
++
++    /* Finally draw the backing pixmap */
++    gc = gdk_gc_new (widget->window);
++    
++    gdk_gc_set_clip_region (gc, expose->region);
++
++    gdk_draw_drawable (widget->window, gc, scroll_area->priv->pixmap,
++		       0, 0, widget->allocation.x, widget->allocation.y,
++		       widget->allocation.width, widget->allocation.height);
++
++    g_object_unref (gc);
++    gdk_region_destroy (region);
++    
++    return TRUE;
++}
++
++void
++foo_scroll_area_get_viewport (FooScrollArea *scroll_area,
++			      GdkRectangle  *viewport)
++{
++    g_return_if_fail (FOO_IS_SCROLL_AREA (scroll_area));
++    
++    if (!viewport)
++	return;
++    
++    get_viewport (scroll_area, viewport);
++}
++
++static void
++process_event (FooScrollArea	       *scroll_area,
++	       FooScrollAreaEventType	input_type,
++	       int			x,
++	       int			y);
++
++static void
++emit_viewport_changed (FooScrollArea *scroll_area,
++		       GdkRectangle  *new_viewport,
++		       GdkRectangle  *old_viewport)
++{
++    int px, py;
++    g_signal_emit (scroll_area, signals[VIEWPORT_CHANGED], 0, 
++		   new_viewport, old_viewport);
++    
++    gdk_window_get_pointer (scroll_area->priv->input_window, &px, &py, NULL);
++    
++#if 0
++    g_print ("procc\n");
++#endif
++    
++    process_event (scroll_area, FOO_MOTION, px, py);
++}
++
++static void
++clamp_adjustment (GtkAdjustment *adj)
++{
++    double old_value = adj->value;
++    
++    if (adj->upper >= adj->page_size)
++	adj->value = CLAMP (adj->value, 0.0, adj->upper - adj->page_size);
++    else
++	adj->value = 0.0;
++    
++    if (old_value != adj->value)
++	gtk_adjustment_value_changed (adj);
++    
++    gtk_adjustment_changed (adj);
++}
++
++static gboolean
++set_adjustment_values (FooScrollArea *scroll_area)
++{
++    GtkAllocation *allocation = &GTK_WIDGET (scroll_area)->allocation;
++    
++    GtkAdjustment *hadj = scroll_area->priv->hadj;
++    GtkAdjustment *vadj = scroll_area->priv->vadj;
++    
++    /* Horizontal */
++    hadj->page_size = allocation->width;
++    hadj->step_increment = 0.1 * allocation->width;
++    hadj->page_increment = 0.9 * allocation->width;
++    hadj->lower = 0.0;
++    hadj->upper = scroll_area->priv->width;
++    
++    /* Vertical */
++    vadj->page_size = allocation->height;
++    vadj->step_increment = 0.1 * allocation->height;
++    vadj->page_increment = 0.9 * allocation->height;
++    vadj->lower = 0.0;
++    vadj->upper = scroll_area->priv->height;
++    
++    clamp_adjustment (hadj);
++    clamp_adjustment (vadj);
++    
++    return TRUE;
++}
++
++static void
++foo_scroll_area_realize (GtkWidget *widget)
++{
++    FooScrollArea *area = FOO_SCROLL_AREA (widget);
++    GdkWindowAttr attributes;
++    gint attributes_mask;
++    
++    GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
++    
++    attributes.window_type = GDK_WINDOW_CHILD;
++    attributes.x = widget->allocation.x;
++    attributes.y = widget->allocation.y;
++    attributes.width = widget->allocation.width;
++    attributes.height = widget->allocation.height;
++    attributes.wclass = GDK_INPUT_ONLY;
++    attributes.event_mask = gtk_widget_get_events (widget);
++    attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
++			      GDK_BUTTON_RELEASE_MASK |
++			      GDK_BUTTON1_MOTION_MASK |
++			      GDK_BUTTON2_MOTION_MASK |
++			      GDK_BUTTON3_MOTION_MASK |
++			      GDK_POINTER_MOTION_MASK |
++			      GDK_ENTER_NOTIFY_MASK |
++			      GDK_LEAVE_NOTIFY_MASK);
++    
++    attributes_mask = GDK_WA_X | GDK_WA_Y;
++    
++    widget->window = gtk_widget_get_parent_window (widget);
++    g_object_ref (widget->window);
++    
++    area->priv->input_window = gdk_window_new (widget->window,
++					       &attributes, attributes_mask);
++    area->priv->pixmap = gdk_pixmap_new (widget->window, 
++					 widget->allocation.width,
++					 widget->allocation.height,
++					 -1);
++    gdk_window_set_user_data (area->priv->input_window, area);
++    
++    widget->style = gtk_style_attach (widget->style, widget->window);
++}
++
++static void
++foo_scroll_area_unrealize (GtkWidget *widget)
++{
++    FooScrollArea *area = FOO_SCROLL_AREA (widget);
++    
++    if (area->priv->input_window)
++    {
++	gdk_window_set_user_data (area->priv->input_window, NULL);
++	gdk_window_destroy (area->priv->input_window);
++	area->priv->input_window = NULL;
++    }
++    
++    GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
++}
++
++static GdkPixmap *
++create_new_pixmap (GtkWidget *widget,
++		   GdkPixmap *old)
++{
++    GdkPixmap *new = gdk_pixmap_new (widget->window,
++				     widget->allocation.width,
++				     widget->allocation.height,
++				     -1);
++
++    /* Unfortunately we don't know in which direction we were resized,
++     * so we just assume we were dragged from the south-east corner.
++     *
++     * Although, maybe we could get the root coordinates of the input-window?
++     * That might just work, actually. We need to make sure metacity uses
++     * static gravity for the window before this will be useful.
++     */
++    simple_draw_drawable (new, old, 0, 0, 0, 0, -1, -1);
++
++    return new;
++}
++		   
++static void
++allocation_to_canvas_region (FooScrollArea *area,
++			     GdkRegion *region)
++{
++    gdk_region_offset (region, area->priv->x_offset, area->priv->y_offset);
++}
++			     
++
++static void
++foo_scroll_area_size_allocate (GtkWidget     *widget,
++			       GtkAllocation *allocation)
++{
++    FooScrollArea *scroll_area = FOO_SCROLL_AREA (widget);
++    GdkRectangle new_viewport;
++    GdkRectangle old_viewport;
++    GdkRegion *old_allocation;
++    GdkRegion *invalid;
++
++    get_viewport (scroll_area, &old_viewport);
++
++    old_allocation = gdk_region_rectangle (&widget->allocation);
++    gdk_region_offset (old_allocation,
++		       -widget->allocation.x, -widget->allocation.y);
++    invalid = gdk_region_rectangle (allocation);
++    gdk_region_offset (invalid, -allocation->x, -allocation->y);
++    gdk_region_subtract (invalid, old_allocation);
++    allocation_to_canvas_region (scroll_area, invalid);
++    foo_scroll_area_invalidate_region (scroll_area, invalid);
++    gdk_region_destroy (old_allocation);
++    gdk_region_destroy (invalid);
++
++    widget->allocation = *allocation;
++    
++    if (scroll_area->priv->input_window)
++    {
++	GdkPixmap *new_pixmap;
++	
++	gdk_window_move_resize (scroll_area->priv->input_window,
++				allocation->x, allocation->y,
++				allocation->width, allocation->height);
++
++	new_pixmap = create_new_pixmap (widget, scroll_area->priv->pixmap);
++
++	g_object_unref (scroll_area->priv->pixmap);
++
++	scroll_area->priv->pixmap = new_pixmap;
++    }
++    
++    get_viewport (scroll_area, &new_viewport);
++    
++    emit_viewport_changed (scroll_area, &new_viewport, &old_viewport);
++}
++
++static void
++emit_input (FooScrollArea *scroll_area,
++	    FooScrollAreaEventType type,
++	    int			   x,
++	    int			   y,
++	    FooScrollAreaEventFunc func,
++	    gpointer		data)
++{
++    FooScrollAreaEvent event;
++    
++    if (!func)
++	return;
++
++    if (type != FOO_MOTION)
++	emit_input (scroll_area, FOO_MOTION, x, y, func, data);
++    
++#if 0
++    x += scroll_area->priv->x_offset;
++    y += scroll_area->priv->y_offset;
++#endif
++    
++    event.type = type;
++    event.x = x;
++    event.y = y;
++    
++    func (scroll_area, &event, data);
++}
++
++#if 0
++static void
++print_path (const char *header,
++	    cairo_path_t *path)
++{
++    int i;
++
++    g_print ("%s\n", header);
++
++    for (i=0; i < path->num_data; i += path->data[i].header.length)
++    {
++	cairo_path_data_t *data = &(path->data[i]);
++	
++	switch (data->header.type)
++	{
++	case CAIRO_PATH_MOVE_TO:
++	    g_print ("move to:    %f, %f\n", data[1].point.x, data[1].point.y);
++	    break;
++	    
++	case CAIRO_PATH_LINE_TO:
++	    g_print ("line to:    %f, %f\n", data[1].point.x, data[1].point.y);
++	    break;
++	    
++	case CAIRO_PATH_CURVE_TO:
++	    g_print ("curve to:   %f, %f\n", data[1].point.x, data[1].point.y);
++	    g_print ("            %f, %f\n", data[1].point.x, data[1].point.y);
++	    g_print ("            %f, %f\n", data[1].point.x, data[1].point.y);
++	    break;
++	    
++	case CAIRO_PATH_CLOSE_PATH:
++	    break;
++	}
++    }
++}
++#endif
++
++static void
++process_event (FooScrollArea	       *scroll_area,
++	       FooScrollAreaEventType	input_type,
++	       int			x,
++	       int			y)
++{
++    GtkWidget *widget = GTK_WIDGET (scroll_area);
++    int i;
++
++    allocation_to_canvas (scroll_area, &x, &y);
++    
++    if (scroll_area->priv->grabbed)
++    {
++	emit_input (scroll_area, input_type, x, y,
++		    scroll_area->priv->grab_func,
++		    scroll_area->priv->grab_data);
++	return;
++    }
++
++    
++#if 0
++    x += widget->allocation.x;
++    y += widget->allocation.y;
++#endif
++
++#if 0
++    g_print ("number of input regions: %d\n", scroll_area->priv->input_regions->len);
++#endif
++    
++    for (i = 0; i < scroll_area->priv->input_regions->len; ++i)
++    {
++	InputRegion *region = scroll_area->priv->input_regions->pdata[i];
++
++#if 0
++	g_print ("%d ", i);
++	print_region ("region:", region->region);
++#endif
++	
++	if (gdk_region_point_in (region->region, x, y))
++	{
++	    InputPath *path;
++
++	    path = region->paths;
++	    while (path)
++	    {
++		cairo_t *cr;
++		gboolean inside;
++
++		cr = gdk_cairo_create (widget->window);
++		cairo_set_fill_rule (cr, path->fill_rule);
++		cairo_set_line_width (cr, path->line_width);
++		cairo_append_path (cr, path->path);
++
++		if (path->is_stroke)
++		    inside = cairo_in_stroke (cr, x, y);
++		else
++		    inside = cairo_in_fill (cr, x, y);
++
++		cairo_destroy (cr);
++		
++		if (inside)
++		{
++		    emit_input (scroll_area, input_type,
++				x, y,
++				path->func,
++				path->data);
++		    return;
++		}
++		
++		path = path->next;
++	    }
++
++	    /* Since the regions are all disjoint, no other region
++	     * can match. Of course we could be clever and try and
++	     * sort the regions, but so far I have been unable to
++	     * make this loop show up on a profile.
++	     */
++	    return;
++	}
++    }
++}
++
++static void
++process_gdk_event (FooScrollArea *scroll_area,
++		   int		  x,
++		   int	          y,
++		   GdkEvent      *event)
++{
++    FooScrollAreaEventType input_type;
++    
++    if (event->type == GDK_BUTTON_PRESS)
++	input_type = FOO_BUTTON_PRESS;
++    else if (event->type == GDK_BUTTON_RELEASE)
++	input_type = FOO_BUTTON_RELEASE;
++    else if (event->type == GDK_MOTION_NOTIFY)
++	input_type = FOO_MOTION;
++    else
++	return;
++    
++    process_event (scroll_area, input_type, x, y);
++}
++
++static gboolean
++foo_scroll_area_button_press (GtkWidget *widget,
++			      GdkEventButton *event)
++{
++    FooScrollArea *area = FOO_SCROLL_AREA (widget);
++    
++    process_gdk_event (area, event->x, event->y, (GdkEvent *)event);
++    
++    return TRUE;
++}
++
++static gboolean
++foo_scroll_area_button_release (GtkWidget *widget,
++				GdkEventButton *event)
++{
++    FooScrollArea *area = FOO_SCROLL_AREA (widget);
++    
++    process_gdk_event (area, event->x, event->y, (GdkEvent *)event);
++    
++    return FALSE;
++}
++
++static gboolean
++foo_scroll_area_motion (GtkWidget *widget,
++			GdkEventMotion *event)
++{
++    FooScrollArea *area = FOO_SCROLL_AREA (widget);
++    
++    process_gdk_event (area, event->x, event->y, (GdkEvent *)event);
++    return TRUE;
++}
++
++void
++foo_scroll_area_set_size_fixed_y (FooScrollArea	       *scroll_area,
++				  int			width,
++				  int			height,
++				  int			old_y,
++				  int			new_y)
++{
++    int dy = new_y - old_y;
++    
++    scroll_area->priv->width = width;
++    scroll_area->priv->height = height;
++    
++#if 0
++    g_print ("diff: %d\n", new_y - old_y);
++#endif
++    
++    scroll_area->priv->vadj->value += dy;
++    
++    set_adjustment_values (scroll_area);
++    
++    if (dy != 0)
++	gtk_adjustment_value_changed  (scroll_area->priv->vadj);
++}
++
++void
++foo_scroll_area_set_size (FooScrollArea	       *scroll_area,
++			  int			width,
++			  int			height)
++{
++    g_return_if_fail (FOO_IS_SCROLL_AREA (scroll_area));
++    
++    /* FIXME: Default scroll algorithm should probably be to
++     * keep the same *area* outside the screen as before.
++     *
++     * For wrapper widgets that will do something roughly
++     * right. For widgets that don't change size, it
++     * will do the right thing. Except for idle-layouting
++     * widgets.
++     *
++     * Maybe there should be some generic support for those
++     * widgets. Can that even be done?
++     *
++     * Should we have a version of this function using 
++     * fixed points?
++     */
++    
++    scroll_area->priv->width = width;
++    scroll_area->priv->height = height;
++    
++    set_adjustment_values (scroll_area);
++}
++
++static void
++foo_scroll_area_size_request (GtkWidget      *widget,
++			      GtkRequisition *requisition)
++{
++    FooScrollArea *scroll_area = FOO_SCROLL_AREA (widget);
++    
++    requisition->width = scroll_area->priv->min_width;
++    requisition->height = scroll_area->priv->min_height;
++    
++#if 0
++    g_print ("request %d %d\n", requisition->width, requisition->height);
++#endif
++}
++
++#if 0
++static void
++translate_point (double *x, double *y, gpointer data)
++{
++    int *translation = data;
++
++    *x += translation[0];
++    *y += translation[1];
++}
++#endif
++
++#if 0
++static void
++path_translate (cairo_path_t  *path,
++		int	       dx,
++		int	       dy)
++{
++    int translation[2] = {dx, dy};
++    
++    path_foreach_point (path, translate_point, translation);
++}
++#endif
++
++static void
++translate_input_regions (FooScrollArea *scroll_area,
++			 int		dx,
++			 int		dy)
++{
++#if 0
++    int i;
++
++    for (i = 0; i < scroll_area->priv->input_regions->len; ++i)
++    {
++	InputRegion *region = scroll_area->priv->input_regions->pdata[i];
++	InputPath *path;
++	
++	gdk_region_offset (region->region, dx, dy);
++
++	path = region->paths;
++	while (path != NULL)
++	{
++	    path_translate (path->path, dx, dy);
++	    path = path->next;
++	}
++    }
++#endif
++}
++
++#if 0
++static void
++paint_region (FooScrollArea *area, GdkRegion *region)
++{
++    int n_rects;
++    GdkRectangle *rects;
++    region = gdk_region_copy (region);
++    
++    gdk_region_get_rectangles (region, &rects, &n_rects);
++
++    gdk_region_offset (region,
++		       GTK_WIDGET (area)->allocation.x,
++		       GTK_WIDGET (area)->allocation.y);
++
++    GdkGC *gc = gdk_gc_new (GTK_WIDGET (area)->window);
++    gdk_gc_set_clip_region (gc, region);
++    gdk_draw_rectangle (GTK_WIDGET (area)->window, gc, TRUE, 0, 0, -1, -1);
++    g_object_unref (gc);
++    g_free (rects);
++}
++#endif
++
++static void
++foo_scroll_area_scroll (FooScrollArea *area,
++			gint dx, 
++			gint dy)
++{
++    GdkRectangle allocation = GTK_WIDGET (area)->allocation;
++    GdkRectangle src_area;
++    GdkRectangle move_area;
++    GdkRegion *invalid_region;
++
++    allocation.x = 0;
++    allocation.y = 0;
++
++    src_area = allocation;
++    src_area.x -= dx;
++    src_area.y -= dy;
++
++    invalid_region = gdk_region_rectangle (&allocation);
++    
++    if (gdk_rectangle_intersect (&allocation, &src_area, &move_area))
++    {
++	GdkRegion *move_region;
++
++#if 0
++	g_print ("scrolling %d %d %d %d (%d %d)\n",
++		 move_area.x, move_area.y,
++		 move_area.width, move_area.height,
++		 dx, dy);
++#endif
++	
++	simple_draw_drawable (area->priv->pixmap, area->priv->pixmap,
++			      move_area.x, move_area.y,
++			      move_area.x + dx, move_area.y + dy,
++			      move_area.width, move_area.height);
++	gtk_widget_queue_draw (GTK_WIDGET (area));
++	
++	move_region = gdk_region_rectangle (&move_area);
++	gdk_region_offset (move_region, dx, dy);
++	gdk_region_subtract (invalid_region, move_region);
++	gdk_region_destroy (move_region);
++    }
++
++#if 0
++    paint_region (area, invalid_region);
++#endif
++    
++    allocation_to_canvas_region (area, invalid_region);
++
++    foo_scroll_area_invalidate_region (area, invalid_region);
++    
++    gdk_region_destroy (invalid_region);
++}
++
++static void
++foo_scrollbar_adjustment_changed (GtkAdjustment *adj,
++				  FooScrollArea *scroll_area)
++{
++    GtkWidget *widget = GTK_WIDGET (scroll_area);
++    gint dx = 0;
++    gint dy = 0;
++    GdkRectangle old_viewport, new_viewport;
++    
++    get_viewport (scroll_area, &old_viewport);
++    
++    if (adj == scroll_area->priv->hadj)
++    {
++	/* FIXME: do we treat the offset as int or double, and,
++	 * if int, how do we round?
++	 */
++	dx = (int)adj->value - scroll_area->priv->x_offset;
++	scroll_area->priv->x_offset = adj->value;
++    }
++    else if (adj == scroll_area->priv->vadj)
++    {
++	dy = (int)adj->value - scroll_area->priv->y_offset;
++	scroll_area->priv->y_offset = adj->value;
++    }
++    else
++    {
++	g_assert_not_reached ();
++    }
++    
++    if (GTK_WIDGET_REALIZED (widget))
++    {
++	foo_scroll_area_scroll (scroll_area, -dx, -dy);
++    
++#if 0
++	window_scroll_area (widget->window, &widget->allocation, -dx, -dy);
++#endif
++	translate_input_regions (scroll_area, -dx, -dy);
++
++#if 0
++	gdk_window_process_updates (widget->window, TRUE);
++#endif
++    }
++    
++    get_viewport (scroll_area, &new_viewport);
++    
++    emit_viewport_changed (scroll_area, &new_viewport, &old_viewport);
++}
++
++static void
++set_one_adjustment (FooScrollArea *scroll_area,
++		    GtkAdjustment *adjustment,
++		    GtkAdjustment **location)
++{
++    g_return_if_fail (location != NULL);
++    
++    if (adjustment == *location)
++	return;
++    
++    if (!adjustment)
++	adjustment = new_adjustment ();
++    
++    g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
++    
++    if (*location)
++    {
++	g_signal_handlers_disconnect_by_func (
++	    *location, foo_scrollbar_adjustment_changed, scroll_area);
++	
++	g_object_unref (*location);
++    }
++    
++    *location = adjustment;
++    
++    g_object_ref_sink (*location);
++    
++    g_signal_connect (*location, "value_changed",
++		      G_CALLBACK (foo_scrollbar_adjustment_changed),
++		      scroll_area);
++}
++
++static void
++foo_scroll_area_set_scroll_adjustments (FooScrollArea *scroll_area,
++					GtkAdjustment *hadjustment,
++					GtkAdjustment *vadjustment)
++{
++    set_one_adjustment (scroll_area, hadjustment, &scroll_area->priv->hadj);
++    set_one_adjustment (scroll_area, vadjustment, &scroll_area->priv->vadj);
++    
++    set_adjustment_values (scroll_area);
++}
++
++FooScrollArea *
++foo_scroll_area_new (void)
++{
++    return g_object_new (FOO_TYPE_SCROLL_AREA, NULL);
++}
++
++void
++foo_scroll_area_set_min_size (FooScrollArea *scroll_area,
++			      int		   min_width,
++			      int            min_height)
++{
++    scroll_area->priv->min_width = min_width;
++    scroll_area->priv->min_height = min_height;
++    
++    /* FIXME: think through invalidation.
++     *
++     * Goals: - no repainting everything on size_allocate(),
++     *        - make sure input boxes are invalidated when
++     *          needed
++     */
++    gtk_widget_queue_resize (GTK_WIDGET (scroll_area));
++}
++
++#if 0
++static void
++warn_about_adding_input_outside_expose (const char *func)
++{
++    static gboolean warned = FALSE;
++    
++    if (!warned)
++    {
++	g_warning ("%s() can only be called "
++		   "from the paint handler for the FooScrollArea\n", func);
++	
++	warned = TRUE;
++    }
++}
++#endif
++
++static void
++user_to_device (double *x, double *y,
++		gpointer data)
++{
++    cairo_t *cr = data;
++    
++    cairo_user_to_device (cr, x, y);
++}
++
++static InputPath *
++make_path (FooScrollArea *area,
++	   cairo_t *cr,
++	   gboolean is_stroke,
++	   FooScrollAreaEventFunc func,
++	   gpointer data)
++{
++    InputPath *path = g_new0 (InputPath, 1);
++
++    path->is_stroke = is_stroke;
++    path->fill_rule = cairo_get_fill_rule (cr);
++    path->line_width = cairo_get_line_width (cr);
++    path->path = cairo_copy_path (cr);
++    path_foreach_point (path->path, user_to_device, cr);
++    path->func = func;
++    path->data = data;
++    path->next = area->priv->current_input->paths;
++    area->priv->current_input->paths = path;
++    return path;
++}
++
++/* FIXME: we probably really want a
++ *
++ *	foo_scroll_area_add_input_from_fill (area, cr, ...);
++ * and
++ *      foo_scroll_area_add_input_from_stroke (area, cr, ...);
++ * as well.
++ */
++void
++foo_scroll_area_add_input_from_fill (FooScrollArea           *scroll_area,
++				     cairo_t	             *cr,
++				     FooScrollAreaEventFunc   func,
++				     gpointer                 data)
++{
++    g_return_if_fail (FOO_IS_SCROLL_AREA (scroll_area));
++    g_return_if_fail (cr != NULL);
++    g_return_if_fail (scroll_area->priv->current_input);
++
++    make_path (scroll_area, cr, FALSE, func, data);
++}
++
++void
++foo_scroll_area_add_input_from_stroke (FooScrollArea           *scroll_area,
++				       cairo_t	                *cr,
++				       FooScrollAreaEventFunc   func,
++				       gpointer                 data)
++{
++    g_return_if_fail (FOO_IS_SCROLL_AREA (scroll_area));
++    g_return_if_fail (cr != NULL);
++    g_return_if_fail (scroll_area->priv->current_input);
++
++    make_path (scroll_area, cr, TRUE, func, data);
++}
++
++void
++foo_scroll_area_invalidate (FooScrollArea *scroll_area)
++{
++    GtkWidget *widget = GTK_WIDGET (scroll_area);
++
++    foo_scroll_area_invalidate_rect (scroll_area,
++				     scroll_area->priv->x_offset, scroll_area->priv->y_offset,
++				     widget->allocation.width,
++				     widget->allocation.height);
++}
++
++static void
++canvas_to_window (FooScrollArea *area,
++		  GdkRegion *region)
++{
++    GtkWidget *widget = GTK_WIDGET (area);
++    
++    gdk_region_offset (region,
++		       -area->priv->x_offset + widget->allocation.x,
++		       -area->priv->y_offset + widget->allocation.y);
++}
++
++static void
++window_to_canvas (FooScrollArea *area,
++		  GdkRegion *region)
++{
++    GtkWidget *widget = GTK_WIDGET (area);
++
++    gdk_region_offset (region,
++		       area->priv->x_offset - widget->allocation.x,
++		       area->priv->y_offset - widget->allocation.y);
++}
++
++void
++foo_scroll_area_invalidate_region (FooScrollArea *area,
++				   GdkRegion     *region)
++{
++    g_return_if_fail (FOO_IS_SCROLL_AREA (area));
++    
++    gdk_region_union (area->priv->update_region, region);
++
++    if (GTK_WIDGET_REALIZED (area))
++    {
++	canvas_to_window (area, region);
++	
++	gdk_window_invalidate_region (GTK_WIDGET (area)->window, region, TRUE);
++	
++	window_to_canvas (area, region);
++    }
++}
++
++void
++foo_scroll_area_invalidate_rect (FooScrollArea *scroll_area,
++				 int	        x,
++				 int	        y,
++				 int	        width,
++				 int	        height)
++{
++    GdkRectangle rect = { x, y, width, height };
++    GdkRegion *region;
++    
++    g_return_if_fail (FOO_IS_SCROLL_AREA (scroll_area));
++
++    region = gdk_region_rectangle (&rect);
++
++    foo_scroll_area_invalidate_region (scroll_area, region);
++
++    gdk_region_destroy (region);
++}
++
++void
++foo_scroll_area_begin_grab (FooScrollArea *scroll_area,
++			    FooScrollAreaEventFunc func,
++			    gpointer       input_data)
++{
++    g_return_if_fail (FOO_IS_SCROLL_AREA (scroll_area));
++    g_return_if_fail (!scroll_area->priv->grabbed);
++    
++    scroll_area->priv->grabbed = TRUE;
++    scroll_area->priv->grab_func = func;
++    scroll_area->priv->grab_data = input_data;
++    
++    /* FIXME: we should probably take a server grab */
++    /* Also, maybe there should be support for setting the grab cursor */
++}
++
++void
++foo_scroll_area_end_grab (FooScrollArea *scroll_area)
++{
++    g_return_if_fail (FOO_IS_SCROLL_AREA (scroll_area));
++    
++    scroll_area->priv->grabbed = FALSE;
++    scroll_area->priv->grab_func = NULL;
++    scroll_area->priv->grab_data = NULL;
++}
++
++gboolean
++foo_scroll_area_is_grabbed (FooScrollArea *scroll_area)
++{
++    return scroll_area->priv->grabbed;
++}
++
++void
++foo_scroll_area_set_viewport_pos (FooScrollArea  *scroll_area,
++				  int		  x,
++				  int		  y)
++{
++    int x_changed = scroll_area->priv->hadj->value != (double)x;
++    int y_changed = scroll_area->priv->vadj->value != (double)y;
++    
++    scroll_area->priv->hadj->value = x;
++    scroll_area->priv->vadj->value = y;
++    
++    set_adjustment_values (scroll_area);
++    
++    if (x_changed)
++	gtk_adjustment_value_changed (scroll_area->priv->hadj);
++    
++    if (y_changed)
++	gtk_adjustment_value_changed (scroll_area->priv->vadj);
++}
++
++static gboolean
++rect_contains (const GdkRectangle *rect, int x, int y)
++{
++    return (x >= rect->x		&&
++	    y >= rect->y		&&
++	    x  < rect->x + rect->width	&&
++	    y  < rect->y + rect->height);
++}
++
++static void
++stop_scrolling (FooScrollArea *area)
++{
++#if 0
++    g_print ("stop scrolling\n");
++#endif
++    if (area->priv->auto_scroll_info)
++    {
++	g_source_remove (area->priv->auto_scroll_info->timeout_id);
++	g_timer_destroy (area->priv->auto_scroll_info->timer);
++	g_free (area->priv->auto_scroll_info);
++	
++	area->priv->auto_scroll_info = NULL;
++    }
++}
++
++static gboolean
++scroll_idle (gpointer data)
++{
++    GdkRectangle viewport, new_viewport;
++    FooScrollArea *area = data;
++    AutoScrollInfo *info = area->priv->auto_scroll_info;
++#if 0
++    int dx, dy;
++#endif
++    int new_x, new_y;
++    double elapsed;
++    
++    get_viewport (area, &viewport);
++    
++#if 0
++    g_print ("old info: %d %d\n", info->dx, info->dy);
++    
++    g_print ("timeout (%d %d)\n", dx, dy);
++#endif
++    
++#if 0
++    viewport.x += info->dx;
++    viewport.y += info->dy;
++#endif
++    
++#if 0
++    g_print ("new info %d %d\n", info->dx, info->dy);
++#endif
++
++    elapsed = g_timer_elapsed (info->timer, NULL);
++
++    info->res_x = elapsed * info->dx / 0.2;
++    info->res_y = elapsed * info->dy / 0.2;
++
++#if 0
++    g_print ("%f %f\n", info->res_x, info->res_y);
++#endif
++    
++    new_x = viewport.x + info->res_x;
++    new_y = viewport.y + info->res_y;
++
++#if 0
++    g_print ("%f\n", elapsed * (info->dx / 0.2));
++#endif
++    
++#if 0
++    g_print ("new_x, new_y\n: %d %d\n", new_x, new_y);
++#endif
++    
++    foo_scroll_area_set_viewport_pos (area, new_x, new_y);
++#if 0
++				      viewport.x + info->dx,
++				      viewport.y + info->dy);
++#endif
++
++    get_viewport (area, &new_viewport);
++
++    if (viewport.x == new_viewport.x		&&
++	viewport.y == new_viewport.y		&&
++	(info->res_x > 1.0			||
++	 info->res_y > 1.0			||
++	 info->res_x < -1.0			||
++	 info->res_y < -1.0))
++    {
++	stop_scrolling (area);
++	
++	/* stop scrolling if it didn't have an effect */
++	return FALSE;
++    }
++    
++    return TRUE;
++}
++
++static void
++ensure_scrolling (FooScrollArea *area,
++		  int		 dx,
++		  int		 dy)
++{
++    if (!area->priv->auto_scroll_info)
++    {
++#if 0
++	g_print ("start scrolling\n");
++#endif
++	area->priv->auto_scroll_info = g_new0 (AutoScrollInfo, 1);
++	area->priv->auto_scroll_info->timeout_id =
++	    g_idle_add (scroll_idle, area);
++	area->priv->auto_scroll_info->timer = g_timer_new ();
++    }
++    
++#if 0
++    g_print ("setting scrolling to %d %d\n", dx, dy);
++#endif
++
++#if 0
++    g_print ("dx, dy: %d %d\n", dx, dy);
++#endif
++    
++    area->priv->auto_scroll_info->dx = dx;
++    area->priv->auto_scroll_info->dy = dy;
++}
++
++void
++foo_scroll_area_auto_scroll (FooScrollArea *scroll_area,
++			     FooScrollAreaEvent *event)
++{
++    GdkRectangle viewport;
++    
++    get_viewport (scroll_area, &viewport);
++    
++    if (rect_contains (&viewport, event->x, event->y))
++    {
++	stop_scrolling (scroll_area);
++    }
++    else
++    {
++	int dx, dy;
++	
++	dx = dy = 0;
++	
++	if (event->y < viewport.y)
++	{
++	    dy = event->y - viewport.y;
++	    dy = MIN (dy + 2, 0);
++	}
++	else if (event->y >= viewport.y + viewport.height)
++	{
++	    dy = event->y - (viewport.y + viewport.height - 1);
++	    dy = MAX (dy - 2, 0);
++	}
++	
++	if (event->x < viewport.x)
++	{
++	    dx = event->x - viewport.x;
++	    dx = MIN (dx + 2, 0);
++	}
++	else if (event->x >= viewport.x + viewport.width)
++	{
++	    dx = event->x - (viewport.x + viewport.width - 1);
++	    dx = MAX (dx - 2, 0);
++	}
++
++#if 0
++	g_print ("dx, dy: %d %d\n", dx, dy);
++#endif
++	
++	ensure_scrolling (scroll_area, dx, dy);
++    }
++}
++
++void
++foo_scroll_area_begin_auto_scroll (FooScrollArea *scroll_area)
++{
++    /* noop  for now */
++}
++
++void
++foo_scroll_area_end_auto_scroll (FooScrollArea *scroll_area)
++{
++    stop_scrolling (scroll_area);
++}
++
++
++
++#if 0
++/*
++ * Backing Store
++ */
++struct BackingStore
++{
++    GdkPixmap *pixmap;
++    GdkRegion *update_region;
++    int width;
++    int height;
++};
++
++static BackingStore *
++backing_store_new (GdkWindow *window,
++		   int width, int height)
++{
++    BackingStore *store = g_new0 (BackingStore, 1);
++    GdkRectangle rect = { 0, 0, width, height };
++    
++    store->pixmap = gdk_pixmap_new (window, width, height, -1);
++    store->update_region = gdk_region_rectangle (&rect);
++    store->width = width;
++    store->height = height;
++
++    return store;
++}
++
++static void
++backing_store_free (BackingStore *store)
++{
++    g_object_unref (store->pixmap);
++    gdk_region_destroy (store->update_region);
++    g_free (store);
++}
++
++static void
++backing_store_draw (BackingStore  *store, 
++		    GdkDrawable   *dest,
++		    GdkRegion     *clip,
++		    int		   x,
++		    int            y)
++{
++    GdkGC *gc = gdk_gc_new (dest);
++    
++    gdk_gc_set_clip_region (gc, clip);
++
++    gdk_draw_drawable (dest, gc, store->pixmap,
++		       0, 0, x, y, store->width, store->height);
++
++    g_object_unref (gc);
++}
++
++static void
++backing_store_scroll (BackingStore *store,
++		      int           dx,
++		      int           dy)
++{
++    GdkGC *gc = gdk_gc_new (store->pixmap);
++    GdkRectangle rect;
++    
++    gdk_draw_drawable (store->pixmap, gc, store->pixmap,
++		       0, 0, dx, dy,
++		       store->width, store->height);
++
++    /* Invalidate vertically */
++    rect.x = 0;
++    rect.width = store->width;
++
++    if (dy > 0)
++    {
++	rect.y = 0;
++	rect.height = dy;
++    }
++    else
++    {
++	rect.y = store->height + dy;
++	rect.y = -dy;
++    }
++
++    gdk_region_union_with_rect (store->update_region, &rect);
++    
++    /* Invalidate horizontally */
++    rect.y = 0;
++    rect.height = store->height;
++
++    if (dx > 0)
++    {
++	rect.x = 0;
++	rect.width = dx;
++    }
++    else
++    {
++	rect.x = store->width + dx;
++	rect.width = -dx;
++    }
++
++    gdk_region_union_with_rect (store->update_region, &rect);
++}
++
++static void
++backing_store_invalidate_rect (BackingStore *store,
++			       GdkRectangle *rect)
++{
++    gdk_region_union_with_rect (store->update_region, rect);
++}
++
++static void
++backing_store_invalidate_region (BackingStore *store,
++				 GdkRegion *region)
++{
++    gdk_region_union (store->update_region, region);
++}
++
++static void
++backing_store_invalidate_all (BackingStore *store)
++{
++    GdkRectangle rect = { 0, 0, store->width, store->height };
++    gdk_region_destroy (store->update_region);
++    store->update_region = gdk_region_rectangle (&rect);
++}
++
++static void
++backing_store_resize (BackingStore *store,
++		      int           width,
++		      int           height)
++{
++    GdkPixmap *pixmap = gdk_pixmap_new (store->pixmap, width, height, -1);
++
++    /* Unfortunately we don't know in which direction we were resized,
++     * so we just assume we were dragged from the south-east corner.
++     *
++     * Although, maybe we could get the root coordinates of the input-window?
++     * That might just work, actually. We need to make sure metacity uses
++     * static gravity for the window before this will be useful.
++     */
++    simple_draw_drawable (pixmap, store->pixmap, 0, 0, 0, 0, -1, -1);
++
++    g_object_unref (store->pixmap);
++
++    store->pixmap = pixmap;
++
++    /* FIXME: invalidate uncovered strip only */
++
++    backing_store_invalidate_all (store);
++}
++
++static void
++cclip_to_region (cairo_t *cr, GdkRegion *region)
++{
++    int n_rects;
++    GdkRectangle *rects;
++
++    gdk_region_get_rectangles (region, &rects, &n_rects);
++
++    cairo_new_path (cr);
++    while (n_rects--)
++    {
++	GdkRectangle *rect = &(rects[n_rects]);
++
++	cairo_rectangle (cr, rect->x, rect->y, rect->width, rect->height);
++    }
++    cairo_clip (cr);
++
++    g_free (rects);
++}
++
++static void
++backing_store_process_updates (BackingStore *store,
++			       ExposeFunc    func,
++			       gpointer      data)
++{
++    cairo_t *cr = gdk_cairo_create (store->pixmap);
++    GdkRegion *region = store->update_region;
++    store->update_region = gdk_region_new ();
++
++    cclip_to_region (cr, store->update_region);
++
++    func (cr, store->update_region, data);
++
++    gdk_region_destroy (region);
++    cairo_destroy (cr);
++}
++
++#endif
+diff --git a/capplets/display/scrollarea.h b/capplets/display/scrollarea.h
+new file mode 100644
+index 0000000..22abc6c
+--- /dev/null
++++ b/capplets/display/scrollarea.h
+@@ -0,0 +1,107 @@
++#include <cairo/cairo.h>
++#include <gtk/gtk.h>
++
++#define FOO_TYPE_SCROLL_AREA            (foo_scroll_area_get_type ())
++#define FOO_SCROLL_AREA(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), FOO_TYPE_SCROLL_AREA, FooScrollArea))
++#define FOO_SCROLL_AREA_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  FOO_TYPE_SCROLL_AREA, FooScrollAreaClass))
++#define FOO_IS_SCROLL_AREA(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), FOO_TYPE_SCROLL_AREA))
++#define FOO_IS_SCROLL_AREA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  FOO_TYPE_SCROLL_AREA))
++#define FOO_SCROLL_AREA_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  FOO_TYPE_SCROLL_AREA, FooScrollAreaClass))
++
++typedef struct FooScrollArea FooScrollArea;
++typedef struct FooScrollAreaClass FooScrollAreaClass;
++typedef struct FooScrollAreaPrivate FooScrollAreaPrivate;
++typedef struct FooScrollAreaEvent FooScrollAreaEvent;
++
++typedef enum
++{
++    FOO_BUTTON_PRESS,
++    FOO_BUTTON_RELEASE,
++    FOO_MOTION
++} FooScrollAreaEventType;
++
++struct FooScrollAreaEvent
++{
++    FooScrollAreaEventType	type;
++    int				x;
++    int				y;
++};
++
++typedef void (* FooScrollAreaEventFunc) (FooScrollArea      *area,
++					 FooScrollAreaEvent *event,
++					 gpointer            data);
++
++struct FooScrollArea
++{
++    GtkContainer parent_instance;
++
++    FooScrollAreaPrivate *priv;
++};
++
++struct FooScrollAreaClass
++{
++    GtkContainerClass parent_class;
++
++    void (*set_scroll_adjustments) (FooScrollArea *scroll_area,
++				    GtkAdjustment *hadjustment,
++				    GtkAdjustment *vadjustment);
++
++    void (*viewport_changed) (FooScrollArea *scroll_area,
++			      GdkRectangle  *old_viewport,
++			      GdkRectangle  *new_viewport);
++
++    void (*paint) (FooScrollArea *scroll_area,
++		   cairo_t       *cr,
++		   GdkRectangle  *extents,
++		   GdkRegion     *region);
++};
++
++GType foo_scroll_area_get_type (void);
++
++FooScrollArea *foo_scroll_area_new (void);
++
++/* Set the requisition for the widget. */
++void	      foo_scroll_area_set_min_size (FooScrollArea *scroll_area,
++					    int		   min_width,
++					    int            min_height);
++
++/* Set how much of the canvas can be scrolled into view */
++void	      foo_scroll_area_set_size (FooScrollArea	       *scroll_area,
++					int			width,
++					int			height);
++void	      foo_scroll_area_set_size_fixed_y (FooScrollArea  *scroll_area,
++						int		width,
++						int		height,
++						int		old_y,
++						int		new_y);
++void	      foo_scroll_area_set_viewport_pos (FooScrollArea  *scroll_area,
++						int		x,
++						int		y);
++void	      foo_scroll_area_get_viewport (FooScrollArea *scroll_area,
++					    GdkRectangle  *viewport);
++void          foo_scroll_area_add_input_from_stroke (FooScrollArea           *scroll_area,
++						     cairo_t	                *cr,
++						     FooScrollAreaEventFunc   func,
++						     gpointer                 data);
++void          foo_scroll_area_add_input_from_fill (FooScrollArea *scroll_area,
++						      cairo_t	      *cr,
++						      FooScrollAreaEventFunc func,
++						      gpointer       data);
++void          foo_scroll_area_invalidate_region (FooScrollArea *area,
++						 GdkRegion     *region);
++void	      foo_scroll_area_invalidate (FooScrollArea *scroll_area);
++void	      foo_scroll_area_invalidate_rect (FooScrollArea *scroll_area,
++					       int	      x,
++					       int	      y,
++					       int	      width,
++					       int	      height);
++void foo_scroll_area_begin_grab (FooScrollArea *scroll_area,
++				 FooScrollAreaEventFunc func,
++				 gpointer       input_data);
++void foo_scroll_area_end_grab (FooScrollArea *scroll_area);
++gboolean foo_scroll_area_is_grabbed (FooScrollArea *scroll_area);
++
++void foo_scroll_area_begin_auto_scroll (FooScrollArea *scroll_area);
++void foo_scroll_area_auto_scroll (FooScrollArea *scroll_area,
++				  FooScrollAreaEvent *event);
++void foo_scroll_area_end_auto_scroll (FooScrollArea *scroll_area);
+diff --git a/capplets/display/xrandr-capplet.c b/capplets/display/xrandr-capplet.c
+new file mode 100644
+index 0000000..e56b9c5
+--- /dev/null
++++ b/capplets/display/xrandr-capplet.c
+@@ -0,0 +1,1624 @@
++/* Monitor Settings. A preference panel for configuring monitors
++ *
++ * Copyright (C) 2007, 2008  Red Hat, Inc.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ * 
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
++ *
++ * Author: Soren Sandmann <sandmann@redhat.com>
++ */
++
++#include <gtk/gtk.h>
++#include <glade/glade.h>
++#include <string.h>
++#include <stdlib.h>
++#include "scrollarea.h"
++#define I_KNOW_THIS_IS_UNSTABLE_AND_ONLY_IN_FEDORA
++#include <libgnomeui/randrwrap.h>
++#include <libgnomeui/monitor-db.h>
++#include <gdk/gdkx.h>
++#include <X11/Xlib.h>
++
++typedef struct App App;
++typedef struct GrabInfo GrabInfo;
++
++struct App
++{
++    RWScreen       *screen;
++    Configuration  *current_configuration;
++    Output         *current_output;
++    
++    GtkWidget	   *dialog;
++    GtkListStore   *resolution_store;
++    GtkWidget	   *resolution_combo;
++    GtkWidget	   *refresh_combo;
++    GtkWidget	   *rotation_combo;
++    GtkWidget	   *panel_checkbox;
++    GtkWidget	   *panel_label;
++    GtkWidget	   *clone_checkbox;
++    
++    GtkWidget      *area;
++    gboolean	    ignore_gui_changes;
++};
++
++static void rebuild_gui (App *app);
++static void on_rate_changed (GtkComboBox *box, gpointer data);
++
++#if 0
++static void
++show_error (const GError *err)
++{
++    if (!err)
++	return;
++    
++    GtkWidget *dialog = gtk_message_dialog_new (
++	NULL,
++	GTK_DIALOG_DESTROY_WITH_PARENT,
++	GTK_MESSAGE_WARNING,
++	GTK_BUTTONS_OK, err->message);
++    
++    gtk_window_set_title (GTK_WINDOW (dialog), "");
++    
++    gtk_dialog_run (GTK_DIALOG (dialog));
++    gtk_widget_destroy (dialog);
++}
++#endif
++
++static gboolean
++do_free (gpointer data)
++{
++    g_free (data);
++    return FALSE;
++}
++
++static gchar *
++idle_free (gchar *s)
++{
++    g_idle_add (do_free, s);
++
++    return s;
++}
++
++static int
++compare_outputs (const void *p1, const void *p2)
++{
++    Output *const *o1 = p1;
++    Output *const *o2 = p2;
++
++    return (**o1).x - (**o2).x;
++}
++
++static void
++on_screen_changed (RWScreen *scr,
++		   gpointer data)
++{
++    Configuration *current;
++    App *app = data;
++    int i;
++    Output *best;
++
++    current = configuration_new_current (app->screen);
++
++    if (app->current_configuration)
++	configuration_free (app->current_configuration);
++    
++    app->current_configuration = current;
++
++    for (i = 0; app->current_configuration->outputs[i] != NULL; ++i)
++    {
++	Output *o = app->current_configuration->outputs[i];
++	
++	g_print ("  output %s %s: %d %d %d %d\n", o->name, o->on? "on" : "off", o->x, o->y, o->width, o->height);
++    }
++    
++    g_print ("sorting\n");
++    /* Sort outputs according to X coordinate */
++    for (i = 0; app->current_configuration->outputs[i] != NULL; ++i)
++	;
++	
++    qsort (app->current_configuration->outputs, i, sizeof (Output *),
++	   compare_outputs);
++
++#if 0
++    for (i = 0; app->current_configuration->outputs[i] != NULL; ++i)
++    {
++	Output *o = app->current_configuration->outputs[i];
++	
++	g_print ("  output: %d %d %d %d\n", o->x, o->y, o->width, o->height);
++    }
++#endif
++    
++    /* Select an output */
++    best = NULL;
++    for (i = 0; app->current_configuration->outputs[i] != NULL; ++i)
++    {
++	Output *output = app->current_configuration->outputs[i];
++
++	if (output->connected)
++	{
++	    char *cur_name =
++		app->current_output? app->current_output->name : NULL;
++
++	    if ((cur_name && strcmp (output->name, cur_name) == 0) || !best)
++		best = output;
++	}
++    }
++
++    app->current_output = best;
++
++    rebuild_gui (app);
++}
++
++static void
++on_viewport_changed (FooScrollArea *scroll_area,
++		     GdkRectangle  *old_viewport,
++		     GdkRectangle  *new_viewport)
++{
++    foo_scroll_area_set_size (scroll_area,
++			      new_viewport->width,
++			      new_viewport->height);
++
++    foo_scroll_area_invalidate (scroll_area);
++}
++
++static void
++layout_set_font (PangoLayout *layout, const char *font)
++{
++    PangoFontDescription *desc =
++	pango_font_description_from_string (font);
++
++    if (desc)
++    {
++	pango_layout_set_font_description (layout, desc);
++
++	pango_font_description_free (desc);
++    }
++}
++
++static void
++clear_combo (GtkWidget *widget)
++{
++    GtkComboBox *box = GTK_COMBO_BOX (widget);
++    GtkTreeModel *model = gtk_combo_box_get_model (box);
++    GtkListStore *store = GTK_LIST_STORE (model);
++
++    gtk_list_store_clear (store);
++}
++
++typedef struct
++{
++    const char *text;
++    gboolean found;
++    GtkTreeIter iter;
++} ForeachInfo;
++
++static gboolean
++foreach (GtkTreeModel *model,
++	 GtkTreePath *path,
++	 GtkTreeIter *iter,
++	 gpointer data)
++{
++    ForeachInfo *info = data;
++    char *text = NULL;
++
++    gtk_tree_model_get (model, iter, 0, &text, -1);
++
++    g_assert (text != NULL);
++    
++    if (strcmp (info->text, text) == 0)
++    {
++	info->found = TRUE;
++	info->iter = *iter;
++	return TRUE;
++    }
++
++    return FALSE;
++}
++
++static void
++add_key (GtkWidget *widget,
++	 const char *text,
++	 int width, int height, int rate,
++	 RWRotation rotation)
++{
++    ForeachInfo info;
++    GtkComboBox *box = GTK_COMBO_BOX (widget);
++    GtkTreeModel *model = gtk_combo_box_get_model (box);
++    GtkListStore *store = GTK_LIST_STORE (model);
++    gboolean retval;
++
++    info.text = text;
++    info.found = FALSE;
++    
++    gtk_tree_model_foreach (model, foreach, &info);
++
++    if (!info.found)
++    {
++	GtkTreeIter iter;
++	gtk_list_store_append (store, &iter);
++
++	gtk_list_store_set (store, &iter,
++			    0, text,
++			    1, width,
++			    2, height,
++			    3, rate,
++			    4, width * height,
++			    5, rotation,
++			    -1);
++
++	retval = TRUE;
++    }
++    else
++    {
++	retval = FALSE;
++    }
++}
++
++static gboolean
++combo_select (GtkWidget *widget, const char *text)
++{
++    GtkComboBox *box = GTK_COMBO_BOX (widget);
++    GtkTreeModel *model = gtk_combo_box_get_model (box);
++    ForeachInfo info;
++
++    info.text = text;
++    info.found = FALSE;
++    
++    gtk_tree_model_foreach (model, foreach, &info);
++
++    if (!info.found)
++	return FALSE;
++
++    gtk_combo_box_set_active_iter (box, &info.iter);
++    return TRUE;
++}
++
++static gboolean
++has_similar_mode (RWOutput *output, RWMode *mode)
++{
++    int i;
++    RWMode **modes = rw_output_list_modes (output);
++    int width = rw_mode_get_width (mode);
++    int height = rw_mode_get_height (mode);
++
++    for (i = 0; modes[i] != NULL; ++i)
++    {
++	RWMode *m = modes[i];
++
++	if (rw_mode_get_width (m) == width	&&
++	    rw_mode_get_height (m) == height)
++	{
++	    return TRUE;
++	}
++    }
++
++    return FALSE;
++}
++
++static RWMode **
++list_clone_modes (Configuration *config, RWScreen *screen)
++{
++    int i;
++    GPtrArray *result;
++    RWMode **modes;
++
++    for (i = 0; config->outputs[i] != NULL; ++i)
++    {
++	if (config->outputs[i]->connected)
++	{
++	    RWOutput *output =
++		rw_screen_get_output_by_name (screen, config->outputs[i]->name);
++
++	    modes = rw_output_list_modes (output);
++	}
++    }
++
++    if (!modes)
++	return NULL;
++
++    result = g_ptr_array_new ();
++
++    for (i = 0; modes[i] != NULL; ++i)
++    {
++	gboolean valid = TRUE;
++	int j;
++	
++	for (j = 0; config->outputs[j] != NULL; ++j)
++	{
++	    if (config->outputs[j]->connected)
++	    {
++		RWOutput *output = rw_screen_get_output_by_name (
++		    screen, config->outputs[j]->name);
++
++		if (!has_similar_mode (output, modes[i]))
++		{
++		    valid = FALSE;
++		    break;
++		}
++	    }
++	}
++
++	if (valid)
++	    g_ptr_array_add (result, modes[i]);
++    }
++
++    g_ptr_array_add (result, NULL);
++    
++    return (RWMode **)g_ptr_array_free (result, FALSE);
++}
++
++static RWMode **
++get_current_modes (App *app)
++{
++    RWOutput *output;
++
++    if (app->current_configuration->clone)
++    {
++	return list_clone_modes (app->current_configuration, app->screen);
++    }
++    else
++    {
++	if (!app->current_output)
++	    return NULL;
++	
++	output = rw_screen_get_output_by_name (
++	    app->screen, app->current_output->name);
++	
++	if (!output)
++	    return NULL;
++	
++	return rw_output_list_modes (output);
++    }
++}
++
++static void
++rebuild_rotation_combo (App *app)
++{
++    typedef struct
++    {
++	RWRotation	rotation;
++	const char *	name;
++    } RotationInfo;
++    static const RotationInfo rotations[] = {
++	{ RW_ROTATION_0, "Normal" },
++	{ RW_ROTATION_90, "Left" },
++	{ RW_ROTATION_270, "Right" },
++	{ RW_ROTATION_180, "Upside Down" },
++    };
++    const char *selection;
++    RWRotation current;
++    int i;
++    
++    clear_combo (app->rotation_combo);
++
++    gtk_widget_set_sensitive (
++	app->rotation_combo, app->current_output && app->current_output->on);
++    
++    if (!app->current_output)
++	return;
++    
++    current = app->current_output->rotation;
++
++    selection = NULL;
++    for (i = 0; i < G_N_ELEMENTS (rotations); ++i)
++    {
++	const RotationInfo *info = &(rotations[i]);
++	
++	app->current_output->rotation = info->rotation;
++
++	if (configuration_applicable (app->current_configuration, app->screen))
++	{
++ 	    add_key (app->rotation_combo, info->name, 0, 0, 0, info->rotation);
++
++	    if (info->rotation == current)
++		selection = info->name;
++	}
++    }
++
++    app->current_output->rotation = current;
++    
++    if (!(selection && combo_select (app->rotation_combo, selection)))
++	combo_select (app->rotation_combo, "Normal");
++}
++
++#define idle_free_printf(x) idle_free (g_strdup_printf (x))
++
++static void
++rebuild_rate_combo (App *app)
++{
++    GHashTable *rates;
++    RWMode **modes;
++    int best;
++    int i;
++
++    clear_combo (app->refresh_combo);
++
++    gtk_widget_set_sensitive (
++	app->refresh_combo, app->current_output && app->current_output->on);
++
++    if (!(modes = get_current_modes (app)))
++	return;
++    
++    rates = g_hash_table_new_full (
++	g_str_hash, g_str_equal, (GFreeFunc)g_free, NULL);
++    
++    best = -1;
++    for (i = 0; modes[i] != NULL; ++i)
++    {
++	RWMode *mode = modes[i];
++	int width, height, rate;
++
++	width = rw_mode_get_width (mode);
++	height = rw_mode_get_height (mode);
++	rate = rw_mode_get_freq (mode);
++
++	if (width == app->current_output->width		&&
++	    height == app->current_output->height)
++	{
++	    add_key (app->refresh_combo,
++		     idle_free (g_strdup_printf ("%d Hz", rate)),
++		     0, 0, rate, -1);
++
++	    if (rate > best)
++		best = rate;
++	}
++    }
++
++    if (!combo_select (app->refresh_combo, idle_free (g_strdup_printf ("%d Hz", app->current_output->rate))))
++	combo_select (app->refresh_combo, idle_free (g_strdup_printf ("%d Hz", best)));
++}
++
++static int
++count_active_outputs (App *app)
++{
++    int i, count = 0;
++    
++    for (i = 0; app->current_configuration->outputs[i] != NULL; ++i)
++    {
++	Output *output = app->current_configuration->outputs[i];
++	if (output->on)
++	    count++;
++    }
++    
++    return count;
++}
++
++static void
++rebuild_resolution_combo (App *app)
++{
++    int i;
++    RWMode **modes;
++    int best_w, best_h;
++    const char *current;
++
++    clear_combo (app->resolution_combo);
++    
++    if (!(modes = get_current_modes (app)))
++	return;
++
++    best_w = 0;
++    best_h = 0;
++    for (i = 0; modes[i] != NULL; ++i)
++    {
++	int width, height;
++
++	width = rw_mode_get_width (modes[i]);
++	height = rw_mode_get_height (modes[i]);
++	
++	add_key (app->resolution_combo,
++		 idle_free (g_strdup_printf ("%d x %d", width, height)),
++		 width, height, 0, -1);
++
++	if (width * height > best_w * best_h)
++	{
++	    best_w = width;
++	    best_h = height;
++	}
++    }
++
++    if (count_active_outputs (app) > 1 || !app->current_output->on)
++	add_key (app->resolution_combo, "Off", 0, 0, 0, 0);
++
++    if (!app->current_output->on)
++    {
++	current = "Off";
++    }
++    else
++    {
++	current = idle_free (g_strdup_printf ("%d x %d",
++					      app->current_output->width,
++					      app->current_output->height));
++    }
++	     
++
++    if (!combo_select (app->resolution_combo, current))
++    {
++	combo_select (app->resolution_combo,
++		      idle_free (
++			  g_strdup_printf ("%d x %d", best_w, best_h)));
++    }
++}
++
++static void
++rebuild_gui (App *app)
++{
++    gboolean sensitive;
++
++    /* We would break spectacularly if we recursed, so
++     * just assert if that happens
++     */
++    g_assert (app->ignore_gui_changes == FALSE);
++    
++    app->ignore_gui_changes = TRUE;
++
++    sensitive = app->current_output? TRUE : FALSE;
++
++#if 0
++    g_print ("rebuild gui, is on: %d\n", app->current_output->on);
++#endif
++    
++    rebuild_resolution_combo (app);
++    rebuild_rate_combo (app);
++    rebuild_rotation_combo (app);
++
++    gtk_widget_set_sensitive (app->resolution_combo, sensitive);
++
++#if 0
++    g_print ("sensitive: %d, on: %d\n", sensitive, app->current_output->on);
++#endif
++    gtk_widget_set_sensitive (app->panel_checkbox, sensitive);
++
++    app->ignore_gui_changes = FALSE;
++
++    if (app->current_configuration && app->current_configuration->clone)
++	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (app->clone_checkbox), TRUE);
++    else
++	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (app->clone_checkbox), FALSE);
++}
++
++static gboolean
++get_mode (GtkWidget *widget, int *width, int *height, int *freq, RWRotation *rot)
++{
++    GtkTreeIter iter;
++    GtkTreeModel *model;
++    GtkComboBox *box = GTK_COMBO_BOX (widget);
++    int dummy;
++
++    if (!gtk_combo_box_get_active_iter (box, &iter))
++	return FALSE;
++
++    if (!width)
++	width = &dummy;
++
++    if (!height)
++	height = &dummy;
++
++    if (!freq)
++	freq = &dummy;
++
++    if (!rot)
++	rot = (RWRotation *)&dummy;
++    
++    model = gtk_combo_box_get_model (box);
++    gtk_tree_model_get (model, &iter,
++			1, width,
++			2, height,
++			3, freq,
++			5, rot,
++			-1);
++
++    return TRUE;
++
++}
++
++static void
++on_rotation_changed (GtkComboBox *box, gpointer data)
++{
++    App *app = data;
++    RWRotation rotation;
++
++    if (!app->current_output)
++	return;
++
++    if (get_mode (app->rotation_combo, NULL, NULL, NULL, &rotation))
++	app->current_output->rotation = rotation;
++
++    foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area));
++}
++
++static void
++on_rate_changed (GtkComboBox *box, gpointer data)
++{
++    App *app = data;
++    int rate;
++
++    if (!app->current_output)
++	return;
++
++    if (get_mode (app->refresh_combo, NULL, NULL, &rate, NULL))
++	app->current_output->rate = rate;
++
++    foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area));
++}
++
++static void
++on_resolution_changed (GtkComboBox *box, gpointer data)
++{
++    App *app = data;
++    int width;
++    int height;
++
++    if (!app->current_output)
++	return;
++
++    if (get_mode (app->resolution_combo, &width, &height, NULL, NULL))
++    {
++	app->current_output->width = width;
++	app->current_output->height = height;
++
++	if (width == 0 || height == 0)
++	    app->current_output->on = FALSE;
++	else
++	    app->current_output->on = TRUE;
++    }
++    
++#if 0
++    if (app->current_configuration)
++    {
++	x = 0;
++	for (i = 0; app->current_configuration->outputs[i] != NULL; ++i)
++	{
++	    Output *output = app->current_configuration->outputs[i];
++	    
++	    if (output->connected)
++	    {
++		output->x = x;
++		
++		x += output->width;
++	    }
++	}
++    }
++#endif
++    
++    rebuild_rate_combo (app);
++    rebuild_rotation_combo (app);
++    
++    foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area));
++}
++
++static void
++on_clone_changed (GtkWidget *box, gpointer data)
++{
++    App *app = data;
++
++    app->current_configuration->clone =
++	gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (app->clone_checkbox));
++
++    if (app->current_configuration->clone)
++    {
++	int i;
++
++	for (i = 0; app->current_configuration->outputs[i]; ++i)
++	{
++	    if (app->current_configuration->outputs[i]->connected)
++	    {
++		app->current_output = app->current_configuration->outputs[i];
++		break;
++	    }
++	}
++    }
++    
++    rebuild_gui (app);
++}
++
++static void
++get_geometry (Output *output, int *w, int *h)
++{
++    if (output->on)
++    {
++	*h = output->height;
++	*w = output->width;
++    }
++    else
++    {
++	*h = output->pref_height;
++	*w = output->pref_width;
++    }
++}
++
++#define SPACE 15
++#define MARGIN  15
++
++static GList *
++list_connected_outputs (App *app, int *total_w, int *total_h)
++{
++    int i, dummy;
++    GList *result = NULL;
++
++    if (!total_w)
++	total_w = &dummy;
++    if (!total_h)
++	total_h = &dummy;
++
++    *total_w = 0;
++    *total_h = 0;
++    for (i = 0; app->current_configuration->outputs[i] != NULL; ++i)
++    {
++	Output *output = app->current_configuration->outputs[i];
++
++	if (output->connected)
++	{
++	    int w, h;
++	    
++	    result = g_list_prepend (result, output);
++
++	    get_geometry (output, &w, &h);
++
++	    *total_w += w;
++	    *total_h += h;
++	}
++    }
++
++    return g_list_reverse (result);
++}
++
++static double
++compute_scale (App *app)
++{
++    GList *connected_outputs;
++    int available_w, available_h;
++    int total_w, total_h;
++    int n_monitors;
++    GdkRectangle viewport;
++    
++    foo_scroll_area_get_viewport (FOO_SCROLL_AREA (app->area), &viewport);
++
++    connected_outputs = list_connected_outputs (app, &total_w, &total_h);
++    
++    n_monitors = g_list_length (connected_outputs);
++
++    available_w = viewport.width - 2 * MARGIN - (n_monitors - 1) * SPACE;
++    available_h = viewport.height - 2 * MARGIN - (n_monitors - 1) * SPACE;
++
++    return MIN ((double)available_w / total_w, (double)available_h / total_h);
++}
++
++typedef struct Edge
++{
++    Output *output;
++    int x1, y1;
++    int x2, y2;
++} Edge;
++
++typedef struct Snap
++{
++    Edge *snapper;		/* Edge that should be snapped */
++    Edge *snappee;
++    int dy, dx;		
++} Snap;
++
++static void
++add_edge (Output *output, int x1, int y1, int x2, int y2, GArray *edges)
++{
++    Edge e;
++    
++    e.x1 = x1;
++    e.x2 = x2;
++    e.y1 = y1;
++    e.y2 = y2;
++    e.output = output;
++
++    g_array_append_val (edges, e);
++}
++
++static void
++list_edges_for_output (Output *output, GArray *edges)
++{
++    int x, y, w, h;
++    
++    x = output->x;
++    y = output->y;
++    get_geometry (output, &w, &h);
++    
++    /* Top, Bottom, Left, Right */
++    add_edge (output, x, y, x + w, y, edges);
++    add_edge (output, x, y + h, x + w, y + h, edges);
++    add_edge (output, x, y, x, y + h, edges);
++    add_edge (output, x + w, y, x + w, y + h, edges);
++}
++
++static void
++list_edges (Configuration *config, GArray *edges)
++{
++    int i;
++
++    for (i = 0; config->outputs[i]; ++i)
++    {
++	Output *output = config->outputs[i];
++
++	if (output->connected)
++	    list_edges_for_output (output, edges);
++    }
++}
++
++static gboolean
++overlap (int s1, int e1, int s2, int e2)
++{
++    return (!(e1 < s2 || s1 >= e2));
++}
++
++static gboolean
++horizontal_overlap (Edge *snapper, Edge *snappee)
++{
++    if (snapper->y1 != snapper->y2 || snappee->y1 != snappee->y2)
++	return FALSE;
++
++    return overlap (snapper->x1, snapper->x2, snappee->x1, snappee->x2);
++}
++
++static gboolean
++vertical_overlap (Edge *snapper, Edge *snappee)
++{
++    if (snapper->x1 != snapper->x2 || snappee->x1 != snappee->x2)
++	return FALSE;
++    
++    return overlap (snapper->y1, snapper->y2, snappee->y1, snappee->y2);
++}
++
++static void
++add_snap (GArray *snaps, Snap snap)
++{
++    if (ABS (snap.dx) <= 200 || ABS (snap.dy) <= 200)
++	g_array_append_val (snaps, snap);
++}
++
++static void
++add_edge_snaps (Edge *snapper, Edge *snappee, GArray *snaps)
++{
++    Snap snap;
++
++    snap.snapper = snapper;
++    snap.snappee = snappee;
++    
++    if (horizontal_overlap (snapper, snappee))
++    {
++	snap.dx = 0;
++	snap.dy = snappee->y1 - snapper->y1;
++
++	add_snap (snaps, snap);
++    }
++    else if (vertical_overlap (snapper, snappee))
++    {
++	snap.dy = 0;
++	snap.dx = snappee->x1 - snapper->x1;
++
++	add_snap (snaps, snap);
++    }
++
++    /* Corner snaps */
++    /* 1->1 */
++    snap.dx = snappee->x1 - snapper->x1;
++    snap.dy = snappee->y1 - snapper->y1;
++    
++    add_snap (snaps, snap);
++    
++    /* 1->2 */
++    snap.dx = snappee->x2 - snapper->x1;
++    snap.dy = snappee->y2 - snapper->y1;
++
++    add_snap (snaps, snap);
++
++    /* 2->2 */
++    snap.dx = snappee->x2 - snapper->x2;
++    snap.dy = snappee->y2 - snapper->y2;
++
++    add_snap (snaps, snap);
++
++    /* 2->1 */
++    snap.dx = snappee->x1 - snapper->x2;
++    snap.dy = snappee->y1 - snapper->y2;
++
++    add_snap (snaps, snap);
++}
++
++static void
++list_snaps (Output *output, GArray *edges, GArray *snaps)
++{
++    int i;
++
++    for (i = 0; i < edges->len; ++i)
++    {
++	Edge *output_edge = &(g_array_index (edges, Edge, i));
++
++	if (output_edge->output == output)
++	{
++	    int j;
++	    
++	    for (j = 0; j < edges->len; ++j)
++	    {	
++		Edge *edge = &(g_array_index (edges, Edge, j));
++
++		if (edge->output != output)
++		    add_edge_snaps (output_edge, edge, snaps);
++	    }
++	}
++    }
++}
++
++#if 0
++static void
++print_edge (Edge *edge)
++{
++    g_print ("(%d %d %d %d)", edge->x1, edge->y1, edge->x2, edge->y2);
++}
++#endif
++
++static gboolean
++corner_on_edge (int x, int y, Edge *e)
++{
++    if (x == e->x1 && x == e->x2 && y >= e->y1 && y <= e->y2)
++	return TRUE;
++    
++    if (y == e->y1 && y == e->y2 && x >= e->x1 && x <= e->x2)
++	return TRUE;
++
++    return FALSE;
++}
++
++static gboolean
++edges_align (Edge *e1, Edge *e2)
++{
++    if (corner_on_edge (e1->x1, e1->y1, e2))
++	return TRUE;
++
++    if (corner_on_edge (e2->x1, e2->y1, e1))
++	return TRUE;
++
++    return FALSE;
++}
++
++static gboolean
++output_is_aligned (Output *output, GArray *edges)
++{
++    gboolean result = FALSE;
++    int i;
++
++    for (i = 0; i < edges->len; ++i)
++    {
++	Edge *output_edge = &(g_array_index (edges, Edge, i));
++
++	if (output_edge->output == output)
++	{
++	    int j;
++
++	    for (j = 0; j < edges->len; ++j)
++	    {
++		Edge *edge = &(g_array_index (edges, Edge, j));
++
++		/* We are aligned if an output edge matches
++		 * an edge of another output
++		 */
++		if (edge->output != output_edge->output)
++		{
++		    if (edges_align (output_edge, edge))
++		    {
++			result = TRUE;
++			goto done;
++		    }
++		}
++	    }
++	}
++    }
++done:
++
++    return result;
++}
++
++static void
++get_output_rect (Output *output, GdkRectangle *rect)
++{
++    int w, h;
++
++    get_geometry (output, &w, &h);
++
++    rect->width = w;
++    rect->height = h;
++    rect->x = output->x;
++    rect->y = output->y;
++}
++
++static gboolean
++output_overlaps (Output *output, Configuration *config)
++{
++    int i;
++    GdkRectangle output_rect;
++
++    get_output_rect (output, &output_rect);
++
++    for (i = 0; config->outputs[i]; ++i)
++    {
++	Output *other = config->outputs[i];
++
++	if (other != output && other->connected)
++	{
++	    GdkRectangle other_rect;
++	    
++	    get_output_rect (other, &other_rect);
++	    if (gdk_rectangle_intersect (&output_rect, &other_rect, NULL))
++		return TRUE;
++	}
++    }
++
++    return FALSE;
++}
++
++static gboolean
++configuration_is_aligned (Configuration *config, GArray *edges)
++{
++    int i;
++    gboolean result = TRUE;
++
++    for (i = 0; config->outputs[i]; ++i)
++    {
++	Output *output = config->outputs[i];
++
++	if (output->connected)
++	{
++	    if (!output_is_aligned (output, edges))
++		return FALSE;
++
++	    if (output_overlaps (output, config))
++		return FALSE;
++	}
++    }
++
++    return result;
++}
++
++struct GrabInfo
++{
++    int grab_x;
++    int grab_y;
++    int output_x;
++    int output_y;
++};
++
++static gboolean
++is_corner_snap (const Snap *s)
++{
++    return s->dx != 0 && s->dy != 0;
++}
++
++static int
++compare_snaps (gconstpointer v1, gconstpointer v2)
++{
++    const Snap *s1 = v1;
++    const Snap *s2 = v2;
++    int sv1 = MAX (ABS (s1->dx), ABS (s1->dy));
++    int sv2 = MAX (ABS (s2->dx), ABS (s2->dy));
++    int d;
++
++    d = sv1 - sv2;
++
++    /* This snapping algorithm is good for rock'n'roll, but
++     * this is probably a better:
++     *
++     *    First do a horizontal/vertical snap, then
++     *    with the new coordinates from that snap,
++     *    do a corner snap.
++     *
++     * Right now, it's confusing that corner snapping
++     * depends on the distance in an axis that you can't actually see.
++     *
++     */
++    if (d == 0)
++    {
++	if (is_corner_snap (s1) && !is_corner_snap (s2))
++	    return -1;
++	else if (is_corner_snap (s2) && !is_corner_snap (s1))
++	    return 1;
++	else
++	    return 0;
++    }
++    else
++    {
++	return d;
++    }
++}
++
++static void
++on_output_event (FooScrollArea *area,
++		 FooScrollAreaEvent *event,
++		 gpointer data)
++{
++    Output *output = data;
++    App *app = g_object_get_data (G_OBJECT (area), "app");
++
++    if (event->type == FOO_BUTTON_PRESS)
++    {
++	GrabInfo *info;
++	
++	app->current_output = output;
++
++	rebuild_gui (app);
++	
++	foo_scroll_area_begin_grab (area, on_output_event, data);
++
++	info = g_new0 (GrabInfo, 1);
++	info->grab_x = event->x;
++	info->grab_y = event->y;
++	info->output_x = output->x;
++	info->output_y = output->y;
++	
++	output->user_data = info;
++
++	foo_scroll_area_invalidate (area);
++    }
++    else
++    {
++	if (foo_scroll_area_is_grabbed (area))
++	{
++	    GrabInfo *info = output->user_data;
++	    double scale = compute_scale (app);
++	    int old_x, old_y;
++	    int new_x, new_y;
++	    int i;
++	    GArray *edges, *snaps, *new_edges;
++
++	    old_x = output->x;
++	    old_y = output->y;
++	    new_x = info->output_x + (event->x - info->grab_x) / scale;
++	    new_y = info->output_y + (event->y - info->grab_y) / scale;
++	    
++	    output->x = new_x;
++	    output->y = new_y;
++
++	    edges = g_array_new (TRUE, TRUE, sizeof (Edge));
++	    snaps = g_array_new (TRUE, TRUE, sizeof (Snap));
++	    new_edges = g_array_new (TRUE, TRUE, sizeof (Edge));
++	    
++	    list_edges (app->current_configuration, edges);
++	    list_snaps (output, edges, snaps);
++
++	    g_array_sort (snaps, compare_snaps);
++
++	    output->x = info->output_x;
++	    output->y = info->output_y;
++	    
++	    for (i = 0; i < snaps->len; ++i)
++	    {
++		Snap *snap = &(g_array_index (snaps, Snap, i));
++		GArray *new_edges = g_array_new (TRUE, TRUE, sizeof (Edge));
++
++		output->x = new_x + snap->dx;
++		output->y = new_y + snap->dy;
++
++		g_array_set_size (new_edges, 0);
++		list_edges (app->current_configuration, new_edges);
++		
++		if (configuration_is_aligned (app->current_configuration, new_edges))
++		{
++		    g_array_free (new_edges, TRUE);
++		    break;
++		}
++		else
++		{
++		    output->x = info->output_x;
++		    output->y = info->output_y;
++		}
++	    }
++
++	    g_array_free (new_edges, TRUE);
++	    g_array_free (snaps, TRUE);
++	    g_array_free (edges, TRUE);
++	    
++	    if (event->type == FOO_BUTTON_RELEASE)
++	    {
++		foo_scroll_area_end_grab (area);
++
++		g_free (output->user_data);
++		output->user_data = NULL;
++
++		g_print ("new position: %d %d %d %d\n", output->x, output->y, output->width, output->height);
++	    }
++
++	    foo_scroll_area_invalidate (area);
++	}
++    }
++}
++
++#if 0
++static void
++on_canvas_event (FooScrollArea *area,
++		 FooScrollAreaEvent *event,
++		 gpointer data)
++{
++    App *app = g_object_get_data (G_OBJECT (area), "app");
++    
++    if (event->type == FOO_BUTTON_PRESS)
++    {
++	app->current_output = NULL;
++
++	rebuild_gui (app);
++
++	foo_scroll_area_invalidate (area);
++    }
++}
++#endif
++
++static PangoLayout *
++get_display_name (App *app,
++		  Output *output)
++{
++    const char *text;
++    
++    if (app->current_configuration->clone)
++	text = "Cloned Output";
++    else
++	text = output->display_name;
++
++    return gtk_widget_create_pango_layout (
++	GTK_WIDGET (app->area), text);
++}
++
++#define BACKGROUND_FILL_RGBA	0.72, 0.78, 0.87, 1.0
++#define BACKGROUND_STROKE_RGBA	0.44, 0.59, 0.76, 1.0
++
++static void
++paint_background (FooScrollArea *area,
++		  cairo_t       *cr)
++{
++    GdkRectangle viewport;
++
++    foo_scroll_area_get_viewport (area, &viewport);
++    
++    cairo_set_source_rgba (cr, BACKGROUND_FILL_RGBA);
++
++    cairo_rectangle (cr,
++		     viewport.x, viewport.y,
++		     viewport.width, viewport.height);
++
++    cairo_fill_preserve (cr);
++
++#if 0
++    foo_scroll_area_add_input_from_fill (area, cr, on_canvas_event, NULL);
++#endif
++
++    cairo_set_source_rgba (cr, BACKGROUND_STROKE_RGBA);
++
++    cairo_stroke (cr);
++}
++
++static void
++paint_output (App *app, cairo_t *cr, int i)
++{
++    int w, h;
++    double scale = compute_scale (app);
++    double x, y;
++    int total_w, total_h;
++    GList *connected_outputs = list_connected_outputs (app, &total_w, &total_h); 
++    Output *output = g_list_nth (connected_outputs, i)->data;
++    PangoLayout *layout = get_display_name (app, output);
++    PangoRectangle extent;
++    GdkRectangle viewport;
++
++    cairo_save (cr);
++    
++    foo_scroll_area_get_viewport (FOO_SCROLL_AREA (app->area), &viewport);
++    
++    get_geometry (output, &w, &h);
++    
++#if 0
++    g_print ("%s (%p) geometry %d %d %d\n", output->name, output,
++	     w, h, output->rate);
++#endif
++
++    viewport.height -= 2 * MARGIN;
++    viewport.width -= 2 * MARGIN;
++    
++    x = output->x * scale + MARGIN + (viewport.width - total_w * scale) / 2.0;
++    y = output->y * scale + MARGIN + (viewport.height - total_h * scale) / 2.0;
++
++#if 0
++    g_print ("scaled: %f %f\n", x, y);
++
++    g_print ("scale: %f\n", scale);
++    
++    g_print ("%f %f %f %f\n", x, y, w * scale + 0.5, h * scale + 0.5);
++#endif
++
++    cairo_rectangle (cr, x, y, w * scale + 0.5, h * scale + 0.5);
++    cairo_clip_preserve (cr);
++    
++    if (output->on)
++	cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 1.0);
++    else
++	cairo_set_source_rgba (cr, 0.2, 0.2, 0.2, 1.0);
++    
++    foo_scroll_area_add_input_from_fill (FOO_SCROLL_AREA (app->area),
++					 cr, on_output_event, output);
++    cairo_fill (cr);
++    
++    if (output == app->current_output)
++    {
++	cairo_rectangle (cr, x + 2, y + 2, w * scale + 0.5 - 4, h * scale + 0.5 - 4);
++    
++	cairo_set_line_width (cr, 4);
++	cairo_set_source_rgba (cr, 0.33, 0.43, 0.57, 1.0);
++	cairo_stroke (cr);
++    }
++
++    cairo_rectangle (cr, x + 0.5, y + 0.5, w * scale + 0.5 - 1, h * scale + 0.5 - 1);
++    
++    cairo_set_line_width (cr, 1);
++    cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0);
++
++    cairo_stroke (cr);
++    cairo_set_line_width (cr, 2);
++
++    layout_set_font (layout, "Sans Bold 12");
++    
++    pango_layout_get_pixel_extents (layout, NULL, &extent);
++
++    extent.x = x + ((w * scale + 0.5) - extent.width) / 2;
++    extent.y = y + ((h * scale + 0.5) - extent.height) / 2;
++
++    cairo_move_to (cr, extent.x, extent.y);
++    
++    if (output->on)
++	cairo_set_source_rgb (cr, 0.2, 0.2, 0.8);
++    else
++	cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
++    
++    pango_cairo_show_layout (cr, layout);
++    g_object_unref (layout);
++
++    cairo_restore (cr);
++}
++
++static void
++on_area_paint (FooScrollArea *area,
++	       cairo_t	     *cr,
++	       GdkRectangle  *extent,
++	       GdkRegion     *region,
++	       gpointer	      data)
++{
++    App *app = data;
++    double scale;
++    GList *connected_outputs = NULL;
++    GList *list;
++
++    paint_background (area, cr);
++    
++    if (!app->current_configuration)
++	return;
++    
++    scale = compute_scale (app);
++    connected_outputs = list_connected_outputs (app, NULL, NULL);
++    
++#if 0
++    g_print ("scale: %f\n", scale);
++#endif
++    
++    for (list = connected_outputs; list != NULL; list = list->next)
++    {
++	paint_output (app, cr, g_list_position (connected_outputs, list));
++
++	if (app->current_configuration->clone)
++	    break;
++    }
++}
++
++static void
++make_text_combo (GtkWidget *widget, int sort_column)
++{
++    GtkComboBox *box = GTK_COMBO_BOX (widget);
++    GtkListStore *store = gtk_list_store_new (
++	6,
++	G_TYPE_STRING,		/* Text */
++	G_TYPE_INT,		/* Width */	
++	G_TYPE_INT,		/* Height */
++	G_TYPE_INT,		/* Frequency */
++	G_TYPE_INT,		/* Width * Height */
++	G_TYPE_INT);		/* Rotation */
++	
++    GtkCellRenderer *cell;
++
++    gtk_cell_layout_clear (GTK_CELL_LAYOUT (widget));
++    
++    gtk_combo_box_set_model (box, GTK_TREE_MODEL (store));
++
++    cell = gtk_cell_renderer_text_new ();
++    gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (box), cell, TRUE);
++    gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (box), cell,
++				    "text", 0,
++				    NULL);
++
++    if (sort_column != -1)
++    {
++	gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store),
++					      sort_column,
++					      GTK_SORT_DESCENDING);
++    }
++}
++
++static Atom
++gnome_randr_atom (void)
++{
++    static Atom atom = None;
++
++    if (!atom)
++    {
++	atom = XInternAtom (gdk_x11_get_default_xdisplay(),
++			    "_GNOME_RANDR_ATOM", FALSE);
++    }
++
++    return atom;
++}
++
++static void
++apply (App *app)
++{
++    GError *err = NULL;
++
++    configuration_sanitize (app->current_configuration);
++
++    foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area));
++    
++    if (configuration_save (app->current_configuration, &err))
++    {
++	XEvent message;
++
++	message.xclient.type = ClientMessage;
++	message.xclient.message_type = gnome_randr_atom();
++	message.xclient.format = 8;
++
++	g_print ("Sending client message\n");
++
++	XSendEvent (gdk_x11_get_default_xdisplay(),
++		    gdk_x11_get_default_root_xwindow(),
++		    FALSE,
++		    StructureNotifyMask, &message);
++    }
++}
++
++static void
++on_detect_displays (GtkWidget *widget, gpointer data)
++{
++    App *app = data;
++
++    rw_screen_refresh (app->screen);
++}
++
++static void
++run_application (App *app)
++{
++#ifndef GLADEDIR
++#define GLADEDIR "."
++#endif
++#define GLADE_FILE GLADEDIR "/display-capplet.glade"
++    GladeXML *xml;
++    GtkWidget *align;
++
++    xml = glade_xml_new (GLADE_FILE, NULL, NULL);
++    if (!xml)
++    {
++	g_warning ("Could not open " GLADE_FILE);
++	return;
++    }
++    
++    app->screen = rw_screen_new (gdk_screen_get_default(),
++				 on_screen_changed, app);
++
++    app->dialog = glade_xml_get_widget (xml, "dialog");
++
++    gtk_window_set_default_icon_name ("gnome-display-properties");
++    gtk_window_set_icon_name (GTK_WINDOW (app->dialog),
++			      "gnome-display-properties");
++
++    app->resolution_combo = glade_xml_get_widget (xml, "resolution_combo");
++    g_signal_connect (app->resolution_combo, "changed",
++		      G_CALLBACK (on_resolution_changed), app);
++
++    app->refresh_combo = glade_xml_get_widget (xml, "refresh_combo");
++    g_signal_connect (app->refresh_combo, "changed",
++		      G_CALLBACK (on_rate_changed), app);
++
++    app->rotation_combo = glade_xml_get_widget (xml, "rotation_combo");
++    g_signal_connect (app->rotation_combo, "changed",
++		      G_CALLBACK (on_rotation_changed), app);
++
++    app->clone_checkbox = glade_xml_get_widget (xml, "clone_checkbox");
++    g_signal_connect (app->clone_checkbox, "toggled",
++		      G_CALLBACK (on_clone_changed), app);
++
++    g_signal_connect (glade_xml_get_widget (xml, "detect_displays_button"),
++		      "clicked", G_CALLBACK (on_detect_displays), app);
++    
++    app->panel_checkbox = glade_xml_get_widget (xml, "panel_checkbox");
++    app->panel_label = glade_xml_get_widget (xml, "panel_label");
++
++    make_text_combo (app->resolution_combo, 4);
++    make_text_combo (app->refresh_combo, 3);
++    make_text_combo (app->rotation_combo, -1);
++    
++    g_assert (app->panel_checkbox);
++    
++    /* Scroll Area */
++    app->area = (GtkWidget *)foo_scroll_area_new ();
++
++    g_object_set_data (G_OBJECT (app->area), "app", app);
++    
++    /* FIXME: this should be computed dynamically */
++    foo_scroll_area_set_min_size (FOO_SCROLL_AREA (app->area), -1, 200);
++    gtk_widget_show (app->area);
++    g_signal_connect (app->area, "paint",
++		      G_CALLBACK (on_area_paint), app);
++    g_signal_connect (app->area, "viewport_changed",
++		      G_CALLBACK (on_viewport_changed), app);
++
++    align = glade_xml_get_widget (xml, "align");
++
++    gtk_container_add (GTK_CONTAINER (align), app->area);
++
++    on_screen_changed (app->screen, app);
++    rebuild_gui (app);
++
++    gtk_widget_hide (app->panel_checkbox);
++    gtk_widget_hide (app->panel_label);
++    
++restart:
++    switch (gtk_dialog_run (GTK_DIALOG (app->dialog)))
++    {
++    default:
++	g_print ("Unknown response\n");
++	/* Fall Through */
++    case GTK_RESPONSE_DELETE_EVENT:
++    case GTK_RESPONSE_CLOSE:
++	g_print ("Close\n");
++	break;
++
++    case GTK_RESPONSE_HELP:
++	g_print ("Help\n");
++	goto restart;
++	break;
++
++    case GTK_RESPONSE_APPLY:
++	apply (app);
++	goto restart;
++	break;
++    }
++
++    gtk_widget_destroy (app->dialog);
++}
++
++int
++main (int argc, char **argv)
++{
++    App *app;
++    
++#if 0
++    bindtextdomain (GETTEXT_PACKAGE, DESKTOPEFFECTSLOCALEDIR);
++    bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
++    textdomain (GETTEXT_PACKAGE);
++#endif
++    
++    gtk_init (&argc, &argv);
++
++    app = g_new0 (App, 1);
++
++    run_application (app);
++    
++    return 0;
++}
diff --git a/gnome-control-center.changes b/gnome-control-center.changes
index 0811b3b..a51360e 100644
--- a/gnome-control-center.changes
+++ b/gnome-control-center.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Apr 25 18:46:50 CEST 2008 - federico@novell.com
+
+- Added gnome-control-center-randr-1.2.diff to integrate the new
+  functionality to configure RandR 1.2.
+
 -------------------------------------------------------------------
 Tue Apr 15 00:41:30 CEST 2008 - ro@suse.de
 
diff --git a/gnome-control-center.spec b/gnome-control-center.spec
index 374bf0e..2723c6e 100644
--- a/gnome-control-center.spec
+++ b/gnome-control-center.spec
@@ -19,7 +19,7 @@ Group:          System/GUI/GNOME
 Obsoletes:      fontilus themus acme
 Provides:       fontilus themus acme
 Version:        2.22.1
-Release:        2
+Release:        8
 Summary:        The GNOME Control Center
 Source:         gnome-%{_name}-%{version}.tar.bz2
 Source1:        control-center-art.tar.bz2
@@ -42,6 +42,8 @@ Patch15:        gnome-control-center-default-applications-ftp+news.patch
 Requires:       gnome-icon-theme
 # PATCH-FEATURE-OPENSUSE gnome-control-center-use-preferences-menu.patch
 Patch28:        gnome-control-center-use-preferences-menu.patch
+# PATCH-FEATURE-UPSTREAM gnome-settings-daemon-1.2.diff -- Add support for RandR 1.2 to gnome-display-properties. federico@novell.com
+Patch29:        gnome-control-center-randr-1.2.diff
 Url:            http://www.gnome.org
 Requires:       nautilus gnome-settings-daemon
 Requires:       %{name}-lang = %{version}
@@ -100,6 +102,7 @@ gnome-patch-translation-prepare
 %patch14 -p0
 cp %{S:3} capplets/passwd/change-password.png
 %patch28
+%patch29 -p1
 gnome-patch-translation-update
 
 %build
@@ -221,6 +224,9 @@ fi
 %{_libdir}/pkgconfig/*.pc
 
 %changelog
+* Fri Apr 25 2008 federico@novell.com
+- Added gnome-control-center-randr-1.2.diff to integrate the new
+  functionality to configure RandR 1.2.
 * Tue Apr 15 2008 ro@suse.de
 - added also provides for old name, not just obsoletes
 * Mon Apr 14 2008 rodrigo@suse.de