Align titles to baseline

This does the following:

* Adds a baseline argument to get_text_size (the baseline is the
distance from the top of the texture to the baseline).
* Stores the baseline in the container when calculating the title
height.
* Takes the baseline into account when calculating the config's max font
height.
* When rendering, pads the textures according to the baseline so they
line up.

1 files changed, 1 insertions, 0 deletions

diff --git a/include/sway/tree/container.h b/include/sway/tree/container.h
index 6efecf7c..2735daa3 100644
--- a/include/sway/tree/container.h
+++ b/include/sway/tree/container.h
@@ -117,6 +117,7 @@ struct sway_container {
         struct wlr_texture *title_unfocused;
         struct wlr_texture *title_urgent;
         size_t title_height;
+        size_t title_baseline;
 
         struct {
                 struct wl_signal destroy;