[gtk+/native-layout] implement extended layout for GtkCellRendererText

[Matthias Clasen <matthiasc src gnome org>]

commit d99742e1cb7751af872faffd7aec6747c8a02da6
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Dec 19 10:31:16 2009 -0500

    implement extended layout for GtkCellRendererText

 gtk/gtkcellrenderertext.c |   46 ++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 45 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkcellrenderertext.c b/gtk/gtkcellrenderertext.c
index bbdd21b..e2cc48f 100644
--- a/gtk/gtkcellrenderertext.c
+++ b/gtk/gtkcellrenderertext.c
@@ -21,6 +21,7 @@
 #include <stdlib.h>
 #include "gtkcellrenderertext.h"
 #include "gtkeditable.h"
+#include "gtkextendedlayout.h"
 #include "gtkentry.h"
 #include "gtkmarshalers.h"
 #include "gtkintl.h"
@@ -61,6 +62,8 @@ static GtkCellEditable *gtk_cell_renderer_text_start_editing (GtkCellRenderer
 							      GdkRectangle         *cell_area,
 							      GtkCellRendererState  flags);
 
+static void       gtk_cell_renderer_text_extended_layout_init (GtkExtendedLayoutIface *iface);
+
 enum {
   EDITED,
   LAST_SIGNAL
@@ -148,9 +151,12 @@ struct _GtkCellRendererTextPrivate
   gint wrap_width;
   
   GtkWidget *entry;
+  GtkWidget *owner;
 };
 
-G_DEFINE_TYPE (GtkCellRendererText, gtk_cell_renderer_text, GTK_TYPE_CELL_RENDERER)
+G_DEFINE_TYPE_WITH_CODE (GtkCellRendererText, gtk_cell_renderer_text, GTK_TYPE_CELL_RENDERER,
+                         G_IMPLEMENT_INTERFACE (GTK_TYPE_EXTENDED_LAYOUT,
+                                                gtk_cell_renderer_text_extended_layout_init))
 
 static void
 gtk_cell_renderer_text_init (GtkCellRendererText *celltext)
@@ -1494,6 +1500,7 @@ get_size (GtkCellRenderer *cell,
   GtkCellRendererTextPrivate *priv;
 
   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
+  priv->owner = widget;
 
   if (celltext->calc_fixed_height)
     {
@@ -1930,5 +1937,42 @@ gtk_cell_renderer_text_set_fixed_height_from_font (GtkCellRendererText *renderer
     }
 }
 
+static void
+gtk_cell_renderer_text_extended_layout_get_desired_size (GtkExtendedLayout *layout,
+                                                         GtkRequisition    *minimal_size,
+                                                         GtkRequisition    *desired_size)
+{
+  GtkCellRendererTextPrivate *priv;
+
+  priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (layout);
+
+  if (minimal_size)
+    {
+      get_size (GTK_CELL_RENDERER (layout),
+                priv->owner, NULL, NULL, NULL, NULL,
+                &minimal_size->width, &minimal_size->height);
+    }
+
+  if (desired_size)
+    {
+      PangoEllipsizeMode ellipsize;
+
+      ellipsize = priv->ellipsize;
+      priv->ellipsize = PANGO_ELLIPSIZE_NONE;
+
+      get_size (GTK_CELL_RENDERER (layout),
+                priv->owner, NULL, NULL, NULL, NULL,
+                &desired_size->width, &desired_size->height);
+
+      priv->ellipsize = ellipsize;
+    }
+}
+
+static void
+gtk_cell_renderer_text_extended_layout_init (GtkExtendedLayoutIface *iface)
+{
+  iface->get_desired_size = gtk_cell_renderer_text_extended_layout_get_desired_size;
+}
+
 #define __GTK_CELL_RENDERER_TEXT_C__
 #include "gtkaliasdef.c"