Add op node when clicked and connect to proper function

src/compositor.c

@@ -93,11 +93,11 @@ i32 run_main_loop(void) {
         if (comp.event.button.windowID == main_window->id) {
           if (comp.node_hovered != -1) {
             comp.move_node = true;
-
-            comp.last_clicked_mouse_x = comp.event.button.x;
-            comp.last_clicked_mouse_y = comp.event.button.y;
           }
 
+          comp.last_clicked_mouse_x = comp.event.button.x;
+          comp.last_clicked_mouse_y = comp.event.button.y;
+
           break;
         } else if (comp.event.button.windowID == toolbox->id) {
           if (comp.button_hovered != -1) {
@@ -112,6 +112,9 @@ i32 run_main_loop(void) {
         if (comp.event.button.windowID == toolbox->id) {
           if (comp.button_hovered >= 0 &&
               comp.button_hovered == comp.button_clicked) {
+            add_node(&comp, NODE_TYPE_OP,
+                     (node_data_t){.func = ops[comp.button_hovered]},
+                     comp.last_clicked_mouse_x, comp.last_clicked_mouse_y);
           }
 
           comp.button_clicked = -1;