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Allow theme to set close button position in headerbars

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This allows GTK+ applications with headerbars to fit in
better in platforms that have window controls on the left.

To use this, set -GtkWindow-decoration-button-layout: 'close:'
in the theme.

https://bugzilla.gnome.org/show_bug.cgi?id=706708
This commit is contained in:
Matthias Clasen 2013-09-16 16:13:07 -04:00
parent aa1435b741
commit 54773ba45b
1 changed files with 38 additions and 4 deletions
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42
gtk/gtkheaderbar.c
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@ -643,6 +643,27 @@ gtk_header_bar_get_preferred_height_for_width (GtkWidget *widget,
gtk_header_bar_compute_size_for_opposing_orientation (widget, width, minimum_height, natural_height);
}
static gboolean
close_button_at_end (GtkWidget *widget)
{
gchar *layout_desc;
gboolean at_end;
gchar *p;
gtk_widget_style_get (gtk_widget_get_toplevel (widget),
"decoration-button-layout", &layout_desc, NULL);
p = strchr (layout_desc, ':');
if (p && strstr (p, "close"))
at_end = TRUE;
else
at_end = FALSE;
g_free (layout_desc);
return at_end;
}
static void
gtk_header_bar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
@ -667,6 +688,9 @@ gtk_header_bar_size_allocate (GtkWidget *widget,
gint child_size;
GtkTextDirection direction;
GtkBorder css_borders;
gboolean at_end;
at_end = close_button_at_end (widget);
gtk_widget_set_allocation (widget, allocation);
@ -734,9 +758,9 @@ gtk_header_bar_size_allocate (GtkWidget *widget,
child_allocation.y = allocation->y + css_borders.top;
child_allocation.height = height;
if (packing == GTK_PACK_START)
x = allocation->x + css_borders.left;
x = allocation->x + css_borders.left + (at_end ? 0 : close_width);
else
x = allocation->x + allocation->width - close_width - css_borders.right;
x = allocation->x + allocation->width - (at_end ? close_width : 0) - css_borders.right;
if (packing == GTK_PACK_START)
{
@ -790,7 +814,10 @@ gtk_header_bar_size_allocate (GtkWidget *widget,
}
}
side[GTK_PACK_END] += close_width;
if (at_end)
side[GTK_PACK_END] += close_width;
else
side[GTK_PACK_START] += close_width;
child_allocation.y = allocation->y + css_borders.top;
child_allocation.height = height;
@ -822,14 +849,21 @@ gtk_header_bar_size_allocate (GtkWidget *widget,
if (priv->close_button)
{
gboolean left;
if (direction == GTK_TEXT_DIR_RTL)
left = at_end;
else
left = !at_end;
if (left)
child_allocation.x = allocation->x + css_borders.left;
else
child_allocation.x = allocation->x + allocation->width - css_borders.right - close_button_width;
child_allocation.width = close_button_width;
gtk_widget_size_allocate (priv->close_button, &child_allocation);
if (direction == GTK_TEXT_DIR_RTL)
if (left)
child_allocation.x = allocation->x + css_borders.left + close_button_width + priv->spacing;
else
child_allocation.x = allocation->x + allocation->width - css_borders.right - close_button_width - priv->spacing - separator_width;