[evolution] ETree: Fix runtime warnings with GTK3.

[Matthew Barnes <mbarnes src gnome org>]

commit 7a6b7673351c8597a5cf976d59fdd7fd246a78d5
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sun Jan 9 09:29:11 2011 -0500

    ETree: Fix runtime warnings with GTK3.
    
    ETable has a "vertical-spacing" style property, ETree does not.
    ECellText expects it to be in both.

 widgets/table/e-cell-text.c |   15 ++++++++++++---
 widgets/table/e-table.c     |   19 ++++++++++---------
 widgets/table/e-tree.c      |   11 +++++++++++
 3 files changed, 33 insertions(+), 12 deletions(-)
---
diff --git a/widgets/table/e-cell-text.c b/widgets/table/e-cell-text.c
index 87febf7..4d86378 100644
--- a/widgets/table/e-cell-text.c
+++ b/widgets/table/e-cell-text.c
@@ -681,12 +681,21 @@ show_pango_rectangle (CellEdit *edit, PangoRectangle rect)
 }
 
 static gint
-get_vertical_spacing (GtkWidget *widget)
+get_vertical_spacing (GtkWidget *canvas)
 {
-	GtkStyle *style = gtk_rc_get_style (widget);
+	GtkStyle *style;
+	GtkWidget *widget;
 	gint vspacing = 0;
 
-	gtk_style_get (style, E_TABLE_TYPE, "vertical-spacing", &vspacing, NULL);
+	g_return_val_if_fail (E_IS_CANVAS (canvas), 3);
+
+	/* The parent should be either an ETable or ETree. */
+	widget = gtk_widget_get_parent (canvas);
+	style = gtk_widget_get_style (widget);
+
+	gtk_style_get (
+		style, G_OBJECT_TYPE (widget),
+		"vertical-spacing", &vspacing, NULL);
 
 	return vspacing;
 }
diff --git a/widgets/table/e-table.c b/widgets/table/e-table.c
index 4cbd655..4dc13bf 100644
--- a/widgets/table/e-table.c
+++ b/widgets/table/e-table.c
@@ -3513,15 +3513,16 @@ e_table_class_init (ETableClass *class)
 							      E_TABLE_MODEL_TYPE,
 							      G_PARAM_READABLE));
 
-	gtk_widget_class_install_style_property (widget_class,
-					 g_param_spec_int ("vertical-spacing",
-							   "Vertical Row Spacing",
-							   "Vertical space between rows. It is added to top and to bottom of a row",
-							   0,
-							   G_MAXINT,
-							   3,
-							   G_PARAM_READABLE |
-							   G_PARAM_STATIC_STRINGS));
+	gtk_widget_class_install_style_property (
+		widget_class,
+		g_param_spec_int (
+			"vertical-spacing",
+			"Vertical Row Spacing",
+			"Vertical space between rows. "
+			"It is added to top and to bottom of a row",
+			0, G_MAXINT, 3,
+			G_PARAM_READABLE |
+			G_PARAM_STATIC_STRINGS));
 
 	gal_a11y_e_table_init ();
 }
diff --git a/widgets/table/e-tree.c b/widgets/table/e-tree.c
index 5f0effa..8d718b0 100644
--- a/widgets/table/e-tree.c
+++ b/widgets/table/e-tree.c
@@ -3584,6 +3584,17 @@ e_tree_class_init (ETreeClass *class)
 					     10,
 					     G_PARAM_READABLE));
 
+	gtk_widget_class_install_style_property (
+		widget_class,
+		g_param_spec_int (
+			"vertical-spacing",
+			"Vertical Row Spacing",
+			"Vertical space between rows. "
+			"It is added to top and to bottom of a row",
+			0, G_MAXINT, 3,
+			G_PARAM_READABLE |
+			G_PARAM_STATIC_STRINGS));
+
 	gal_a11y_e_tree_init ();
 }