Implement pango support

Implements support for the pango: prefix in the font command.

Closes #1903.

3 files changed, 15 insertions, 4 deletions

diff --git a/include/sway/config.h b/include/sway/config.h
index fa40ef4e..a0e7e81f 100644
--- a/include/sway/config.h
+++ b/include/sway/config.h
@@ -305,6 +305,7 @@ struct sway_config {
         enum sway_container_layout default_layout;
         char *font;
         size_t font_height;
+        bool pango_markup;
 
         // Flags
         bool focus_follows_mouse;
diff --git a/sway/commands/font.c b/sway/commands/font.c
index 8e0b51e3..3071ccd8 100644
--- a/sway/commands/font.c
+++ b/sway/commands/font.c
@@ -12,7 +12,16 @@ struct cmd_results *cmd_font(int argc, char **argv) {
         }
         char *font = join_args(argv, argc);
         free(config->font);
-        config->font = strdup(font);
+
+        if (strncmp(font, "pango:", 6) == 0) {
+                config->pango_markup = true;
+                config->font = strdup(font + 6);
+        } else {
+                config->pango_markup = false;
+                config->font = strdup(font);
+        }
+
+        free(font);
         config_update_font_height(true);
         return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }
diff --git a/sway/tree/container.c b/sway/tree/container.c
index e1be32d1..38db29c2 100644
--- a/sway/tree/container.c
+++ b/sway/tree/container.c
@@ -580,7 +580,7 @@ static void update_title_texture(struct sway_container *con,
         int height = config->font_height * scale;
 
         cairo_t *c = cairo_create(NULL);
-        get_text_size(c, config->font, &width, NULL, scale, false,
+        get_text_size(c, config->font, &width, NULL, scale, config->pango_markup,
                         "%s", con->formatted_title);
         cairo_destroy(c);
 
@@ -596,7 +596,8 @@ static void update_title_texture(struct sway_container *con,
                         class->text[2], class->text[3]);
         cairo_move_to(cairo, 0, 0);
 
-        pango_printf(cairo, config->font, scale, false, "%s", con->formatted_title);
+        pango_printf(cairo, config->font, scale, config->pango_markup,
+                        "%s", con->formatted_title);
 
         cairo_surface_flush(surface);
         unsigned char *data = cairo_image_surface_get_data(surface);
@@ -628,7 +629,7 @@ void container_calculate_title_height(struct sway_container *container) {
         }
         cairo_t *cairo = cairo_create(NULL);
         int height;
-        get_text_size(cairo, config->font, NULL, &height, 1, false,
+        get_text_size(cairo, config->font, NULL, &height, 1, config->pango_markup,
                         "%s", container->formatted_title);
         cairo_destroy(cairo);
         container->title_height = height;