From fb1459062f164a87ae49da6496ed02861ea619d1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
Date: Sun, 28 Sep 2014 03:40:17 +0200
Subject: [PATCH] theme: Add function to fill geometry information from GTK+
 theme

We want to eventually pick up all theme information from GTK+ instead
of our own theme format; to prepare for this, add another helper method
to fill in geometry information from the GTK+ theme.

https://bugzilla.gnome.org/show_bug.cgi?id=741917
---
 src/ui/theme-private.h |  3 ++
 src/ui/theme.c         | 83 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+)

diff --git a/src/ui/theme-private.h b/src/ui/theme-private.h
index 10a12b5ef..0c4e9a0fe 100644
--- a/src/ui/theme-private.h
+++ b/src/ui/theme-private.h
@@ -181,6 +181,9 @@ struct _MetaFrameLayout
   /** Space around buttons */
   GtkBorder button_border;
 
+  /** Size of images in buttons */
+  guint icon_size;
+
   /** Space between titlebar elements */
   guint titlebar_spacing;
 
diff --git a/src/ui/theme.c b/src/ui/theme.c
index f09f6790b..de3d7bfd7 100644
--- a/src/ui/theme.c
+++ b/src/ui/theme.c
@@ -143,6 +143,7 @@ meta_frame_layout_new  (void)
   layout->titlebar_spacing = 6;
   layout->has_title = TRUE;
   layout->title_scale = 1.0;
+  layout->icon_size = META_MINI_ICON_WIDTH;
 
   init_border (&layout->button_border);
 
@@ -525,6 +526,88 @@ strip_button (MetaButtonSpace *func_rects[MAX_BUTTONS_PER_CORNER],
   return FALSE; /* did not strip anything */
 }
 
+static void
+get_padding_and_border (GtkStyleContext *style,
+                        GtkBorder       *border)
+{
+  GtkBorder tmp;
+  GtkStateFlags state = gtk_style_context_get_state (style);
+
+  gtk_style_context_get_border (style, state, border);
+  gtk_style_context_get_padding (style, state, &tmp);
+
+  border->left += tmp.left;
+  border->top += tmp.top;
+  border->right += tmp.right;
+  border->bottom += tmp.bottom;
+}
+
+static void
+meta_frame_layout_sync_with_style (MetaFrameLayout *layout,
+                                   MetaStyleInfo   *style_info,
+                                   MetaFrameFlags   flags)
+{
+  GtkStyleContext *style;
+  GtkBorder border;
+  int border_radius, max_radius;
+
+  meta_style_info_set_flags (style_info, flags);
+
+  layout->button_sizing = META_BUTTON_SIZING_FIXED;
+
+  style = style_info->styles[META_STYLE_ELEMENT_FRAME];
+  get_padding_and_border (style, &border);
+
+  layout->left_width = border.left;
+  layout->right_width = border.right;
+  layout->bottom_height = border.bottom;
+
+  if (layout->hide_buttons)
+    layout->icon_size = 0;
+
+  if (!layout->has_title && layout->hide_buttons)
+    return; /* border-only - be done */
+
+  style = style_info->styles[META_STYLE_ELEMENT_TITLEBAR];
+  gtk_style_context_get (style, gtk_style_context_get_state (style),
+                         "border-radius", &border_radius,
+                         NULL);
+  /* GTK+ currently does not allow us to look up radii of individual
+   * corners; however we don't clip the client area, so with the
+   * current trend of using small/no visible frame borders, most
+   * themes should work fine with this.
+   */
+  layout->top_left_corner_rounded_radius = border_radius;
+  layout->top_right_corner_rounded_radius = border_radius;
+  max_radius = MIN (layout->bottom_height, layout->left_width);
+  layout->bottom_left_corner_rounded_radius = MAX (border_radius, max_radius);
+  max_radius = MIN (layout->bottom_height, layout->right_width);
+  layout->bottom_right_corner_rounded_radius = MAX (border_radius, max_radius);
+
+  get_padding_and_border (style, &border);
+  layout->left_titlebar_edge = border.left;
+  layout->right_titlebar_edge = border.right;
+  layout->title_vertical_pad = border.top;
+
+  layout->button_border.top = border.top;
+  layout->button_border.bottom = border.bottom;
+  layout->button_border.left = 0;
+  layout->button_border.right = 0;
+
+  layout->button_width = layout->icon_size;
+  layout->button_height = layout->icon_size;
+
+  style = style_info->styles[META_STYLE_ELEMENT_BUTTON];
+  get_padding_and_border (style, &border);
+  layout->button_width += border.left + border.right;
+  layout->button_height += border.top + border.bottom;
+
+  style = style_info->styles[META_STYLE_ELEMENT_IMAGE];
+  get_padding_and_border (style, &border);
+  layout->button_width += border.left + border.right;
+  layout->button_height += border.top + border.bottom;
+}
+
 static void
 meta_frame_layout_calc_geometry (const MetaFrameLayout  *layout,
                                  int                     text_height,