マウスオーバー効果の完了

control.c

@@ -384,6 +384,14 @@ redraw:
   control_expose(window, labels, &(SuwaButton){0});
 }
 
+void reset_mouse_hover(SuwaWindow *window, CtrlLabels *labels) {
+  if (!lasthover) return;
+  lasthover->hovered = 0;
+  lasthover = NULL;
+  window->event = (XEvent){.type = Expose};
+  control_expose(window, labels, &(SuwaButton){0});
+}
+
 void handle_mouse_hover(SuwaWindow *window, CtrlLabels *labels, int mx, int my) {
   SuwaButton *btn = find_button_at(window, mx, my);
   if (!btn) return;

control.h

@@ -47,4 +47,5 @@ void control_expose(SuwaWindow *window, CtrlLabels *labels, SuwaButton *button);
 void handle_button_press(SuwaWindow *window, CtrlLabels *labels, int mx, int my);
 void handle_button_release(SuwaWindow *window, CtrlLabels *labels, int mx, int my);
 void handle_key_press(SuwaWindow *window, CtrlLabels *labels);
+void reset_mouse_hover(SuwaWindow *window, CtrlLabels *labels);
 void handle_mouse_hover(SuwaWindow *window, CtrlLabels *labels, int mx, int my);

include/suwaui.h

@@ -334,6 +334,8 @@ __attribute__((unused)) static SuwaWindow suwaui_create_window(int x, int y, int
     | KeyPressMask
     | PointerMotionMask
     | Button1MotionMask
+    | EnterWindowMask
+    | LeaveWindowMask
     // | StructureNotifyMask
   );
 

main.c

@@ -113,7 +113,10 @@ int main() {
       case MotionNotify:
         Time now = window.event.xmotion.time;
         if (now - lasthovertime < 40) break;
-        lasthovertime = now;
+        if (now - lasthovertime > 80) {
+          reset_mouse_hover(&window, &lbl);
+          lasthovertime = now;
+        }
         Window root, child;
         int root_x, root_y,
             win_x, win_y;
@@ -121,9 +124,14 @@ int main() {
 
         XQueryPointer(window.display, window.xwindow, &root, &child,
             &root_x, &root_y, &win_x, &win_y, &mask);
-        if (window.event.xmotion.state == 0) break;
+        if (window.event.xmotion.state == 0) {
+          break;
+        }
         handle_mouse_hover(&window, &lbl, win_x, win_y);
         break;
+      case LeaveNotify:
+        reset_mouse_hover(&window, &lbl);
+        break;
       case ClientMessage:
         // WM_DELETE_WINDOW
         break;