feature: add basic layer support

1 files changed, 12 insertions, 4 deletions

diff --git a/src/user.c b/src/user.c
index 927e852..dc2ffaf 100644
--- a/src/user.c
+++ b/src/user.c
@@ -83,6 +83,7 @@ user_canvas_open(const Arg *x)
 	if (cur_canvas == NULL)
 		puts("Error opening file");
 	ui_redraw_panel(UI_PANELTYPE_CANVAS);
+	ui_redraw_panel(UI_PANELTYPE_TIMELINE);
 }
 
 void
@@ -123,6 +124,7 @@ user_canvas_create_new(const Arg *x)
 
 	cur_canvas = canvas_init(w, h, ren);
 	ui_redraw_panel(UI_PANELTYPE_CANVAS);
+	ui_redraw_panel(UI_PANELTYPE_TIMELINE);
 }
 
 void
@@ -144,6 +146,7 @@ user_canvas_import_png(const Arg *x)
 	if (cur_canvas == NULL)
 		puts("Error opening file");
 	ui_redraw_panel(UI_PANELTYPE_CANVAS);
+	ui_redraw_panel(UI_PANELTYPE_TIMELINE);
 }
 
 void
@@ -165,20 +168,25 @@ void
 user_testing_layer_add(const Arg *x)
 {
 /* TODO: temp function */
-    canvas_add_layer(cur_canvas, -1);
+	if (cur_canvas == NULL) return;
+	canvas_add_layer(cur_canvas, -1);
 	fprintf(stdout, "%s:%u: added layer\n", __FILE__, __LINE__);
-    cur_canvas->cur_layer = cur_canvas->layer_arr_cnt-1;
+	cur_canvas->cur_layer = cur_canvas->layer_arr_cnt-1;
+	ui_redraw_panel(UI_PANELTYPE_CANVAS);
+	ui_redraw_panel(UI_PANELTYPE_TIMELINE);
 }
 
 void
 user_layer_chng(const Arg *x)
 {
+	if (cur_canvas == NULL) return;
     cur_canvas->cur_layer += (unsigned int)cur_canvas->layer_arr_cnt;
-    cur_canvas->cur_layer += x->i;
+    cur_canvas->cur_layer += (x->i % cur_canvas->layer_arr_cnt);
     cur_canvas->cur_layer %= cur_canvas->layer_arr_cnt;
 
 	fprintf(stdout, "%s:%u: changed to layer %u\n", __FILE__, __LINE__, cur_canvas->cur_layer);
-    ui_redraw_panel(UI_PANELTYPE_CANVAS);
+	ui_redraw_panel(UI_PANELTYPE_CANVAS);
+	ui_redraw_panel(UI_PANELTYPE_TIMELINE);
 }
 
 void