complete left click event handle

engine/layout.h

@@ -52,6 +52,39 @@ enum class kShapeType : uint16_t
     Slice9      = const_hash("slice9"),
 };
 
+enum class kEventResult : uint8_t
+{
+    Handled,
+    UnHandled,
+};
+
+enum class kEventCategory : uint8_t
+{
+    MouseEvent,
+};
+enum class kEventType : uint8_t
+{
+    MouseDownL,
+    MouseDownR,
+    MouseMove,
+    MouseUpL,
+    MouseUpR,
+};
+
+class Event
+{
+public:
+    kEventCategory m_cat;
+    kEventType m_type;
+};
+
+class MouseEvent : public Event
+{
+public:
+    MouseEvent() { m_cat = kEventCategory::MouseEvent; }
+    glm::vec2 m_pos;
+};
+
 class Widget
 {
 public:
@@ -65,6 +98,7 @@ public:
     virtual void draw() { }
     virtual void parse_attributes(kAttribute ka, const tinyxml2::XMLAttribute* attr) { }
     virtual void update() { }
+    virtual kEventResult on_event(Event* e) { return kEventResult::UnHandled; }
 };
 
 class WidgetRef : public Widget
@@ -136,6 +170,11 @@ public:
             break;
         }
     }
+    virtual kEventResult on_event(Event* e)
+    {
+        m_color = rand_color();
+        return kEventResult::Handled;
+    }
 };
 
 class WidgetShape : public Widget
@@ -288,6 +327,11 @@ public:
     {
         mvp = proj * pos;
     }
+    virtual kEventResult on_event(Event* e) 
+    {
+        m_color = rand_color();
+        return kEventResult::Handled; 
+    }
 };
 
 class WidgetImage : public Widget
@@ -366,6 +410,11 @@ public:
             break;
         }
     }
+    virtual kEventResult on_event(Event* e)
+    {
+        MouseEvent* me = static_cast<MouseEvent*>(e);
+        return kEventResult::UnHandled;
+    }
 };
 
 class Node
@@ -377,22 +426,28 @@ class Node
     class LayoutManager* m_manager;
 
 public:
+    uint16_t m_nodeID;
+    std::string m_nodeID_s;
     std::vector<Node> m_children;
     std::unique_ptr<Widget> m_widget;
     glm::vec2 m_pos;
     glm::vec2 m_size;
     glm::vec4 m_clip;
     std::string m_name;
+    bool m_display = true;
     Node(const Node&) = delete;
     Node& operator=(const Node&) = delete;
     Node&& operator=(Node&& o) { return std::forward<Node>(o); }
     Node(Node&& o)
     {
         m_name = std::move(o.m_name);
+        m_nodeID_s = std::move(o.m_nodeID_s);
         m_widget = std::move(o.m_widget);
         m_children = std::move(o.m_children);
         for (auto& c : m_children)
             c.parent = this;
+        m_nodeID = o.m_nodeID;
+        m_display = o.m_display;
         parent = o.parent;
         y_node = o.y_node;
         m_pos = o.m_pos;
@@ -444,6 +499,8 @@ public:
     void load_internal(const tinyxml2::XMLElement* x_node);
     void draw();
     Node clone();
+    Node* find(const char* ids);
+    kEventResult on_event(Event* e);
 
     class iterator
     {