[gnumeric] GUI: Dead kittens.

[Morten Welinder <mortenw src gnome org>]

commit f51cd95acc2c24dabbd89129134f840d282dda52
Author: Morten Welinder <terra gnome org>
Date:   Sun May 1 20:24:29 2016 -0400

    GUI: Dead kittens.

 src/widgets/gnm-notebook.c |   25 +++++++++++++++++++++++--
 1 files changed, 23 insertions(+), 2 deletions(-)
---
diff --git a/src/widgets/gnm-notebook.c b/src/widgets/gnm-notebook.c
index 0994dc4..97c5c01 100644
--- a/src/widgets/gnm-notebook.c
+++ b/src/widgets/gnm-notebook.c
@@ -132,7 +132,13 @@ gnm_notebook_button_ensure_layout (GnmNotebookButton *nbb)
                }
                attrs_active = pango_attr_list_copy (attrs);
 
+               // As-of gtk+ 3.20 we have to set the context state to the state
+               // we are querying for.  This ought to work before gtk+ 3.20
+               // too.
+               gtk_style_context_save (context);
+
                /* Normal */
+               gtk_style_context_set_state (context, GTK_STATE_FLAG_NORMAL);
                gtk_style_context_get (context, GTK_STATE_FLAG_NORMAL,
                                       "font", &desc, NULL);
                attr = pango_attr_font_desc_new (desc);
@@ -144,6 +150,7 @@ gnm_notebook_button_ensure_layout (GnmNotebookButton *nbb)
                pango_attr_list_unref (attrs);
 
                /* Active */
+               gtk_style_context_set_state (context, GTK_STATE_FLAG_ACTIVE);
                gtk_style_context_get (context, GTK_STATE_FLAG_ACTIVE,
                                       "font", &desc, NULL);
                attr = pango_attr_font_desc_new (desc);
@@ -153,6 +160,8 @@ gnm_notebook_button_ensure_layout (GnmNotebookButton *nbb)
                pango_font_description_free (desc);
                pango_layout_set_attributes (nbb->layout_active, attrs_active);
                pango_attr_list_unref (attrs_active);
+
+               gtk_style_context_restore (context);
        }
 
        pango_layout_get_extents (nbb->layout, NULL, &nbb->logical);
@@ -207,10 +216,16 @@ gnm_notebook_button_get_preferred_height (GtkWidget *widget,
 {
        GnmNotebookButton *nbb = GNM_NOTEBOOK_BUTTON (widget);
        GtkBorder padding;
+       GtkStyleContext *ctxt = gtk_widget_get_style_context (widget);
 
-       gtk_style_context_get_padding (gtk_widget_get_style_context (widget),
+       // As-of gtk+ 3.20 we have to set the context state to the state
+       // we are querying for.  This ought to work before gtk+ 3.20 too.
+       gtk_style_context_save (ctxt);
+       gtk_style_context_set_state (ctxt, GTK_STATE_FLAG_NORMAL);
+       gtk_style_context_get_padding (ctxt,
                                       GTK_STATE_FLAG_NORMAL,
                                       &padding);
+       gtk_style_context_restore (ctxt);
 
        gnm_notebook_button_ensure_layout (nbb);
 
@@ -228,10 +243,16 @@ gnm_notebook_button_get_preferred_width (GtkWidget *widget,
 {
        GnmNotebookButton *nbb = GNM_NOTEBOOK_BUTTON (widget);
        GtkBorder padding;
+       GtkStyleContext *ctxt = gtk_widget_get_style_context (widget);
 
-       gtk_style_context_get_padding (gtk_widget_get_style_context (widget),
+       // As-of gtk+ 3.20 we have to set the context state to the state
+       // we are querying for.  This ought to work before gtk+ 3.20 too.
+       gtk_style_context_save (ctxt);
+       gtk_style_context_set_state (ctxt, GTK_STATE_FLAG_NORMAL);
+       gtk_style_context_get_padding (ctxt,
                                       GTK_STATE_FLAG_NORMAL,
                                       &padding);
+       gtk_style_context_restore (ctxt);
 
        gnm_notebook_button_ensure_layout (nbb);