clear canvas

2 files changed, 11 insertions, 0 deletions

diff --git a/renderer.c b/renderer.c
index 4e4444f..4d6b378 100644
--- a/renderer.c
+++ b/renderer.c
@@ -481,6 +481,16 @@ r_canvas_draw_circle(int id, int x, int y, int r, mu_Color color) {
 	return 0;
 }
 
+void
+r_clear_canvas(int id) {
+	Canvas canvas;
+
+	expect(id >= 0 && id < canvas_list.idx);
+
+	canvas = canvas_list.items[id];
+	clear_surface(canvas.fg);
+}
+
 /* Render a canvas to its underlying icon texture. Returns the id of the icon, or -1 on error. */
 int
 r_render_canvas(int id) {
diff --git a/renderer.h b/renderer.h
index eadfef3..84651f9 100644
--- a/renderer.h
+++ b/renderer.h
@@ -9,4 +9,5 @@ void r_get_icon_size(int id, int *w, int *h);
 int r_add_canvas(const char *bg_img_path);
 void r_remove_canvas(int id);
 int r_canvas_draw_circle(int id, int x, int y, int r, mu_Color color);
+void r_clear_canvas(int id);
 int r_render_canvas(int id);