Implement borders

The borders are implemented as a surface/buffer attached to each view
which is sent to and rendered by wlc in the view_pre_render callback.

All the drawing logic is handled in sway/border.c and all the logic for
calculating the geometry of the border/view is handled in
`update_geometry` in sway/layout.c (same place as gaps are calculated).

1 files changed, 9 insertions, 8 deletions

diff --git a/include/container.h b/include/container.h
index 07514c8a..26da851e 100644
--- a/include/container.h
+++ b/include/container.h
@@ -115,15 +115,16 @@ struct sway_container {
 	 * If this container's children include a fullscreen view, this is that view.
 	 */
 	struct sway_container *fullscreen;
-    /**
-     * If this container is a view, this may be set to the window's decoration
-     * buffer (or NULL).
-     */
-    unsigned char *border;
-    enum swayc_border_types border_type;
+	/**
+	 * If this container is a view, this may be set to the window's decoration
+	 * buffer (or NULL).
+	 */
+	unsigned char *border;
+	enum swayc_border_types border_type;
 	struct wlc_geometry border_geometry;
-	struct wlc_geometry presumed_geometry;
-    int border_thickness;
+	struct wlc_geometry title_bar_geometry;
+	struct wlc_geometry actual_geometry;
+	int border_thickness;
 };
 
 enum visibility_mask {