fix scroll node, improve animation panel

src/node_panel_animation.h

@@ -48,7 +48,8 @@ class NodePanelAnimation : public Node
     NodeButtonCustom* btn_up = nullptr;
     NodeButtonCustom* btn_down = nullptr;
     NodeButtonCustom* btn_duplicate = nullptr;
-    NodeScroll* m_container = nullptr;
+    Node* m_layers_container = nullptr;
+    Node* m_frames_container = nullptr;
     NodeAnimationFrame* m_selected_frame = nullptr;
     NodeAnimationTimeline* m_timeline = nullptr;
     int m_selected_frame_index = -1;
@@ -68,6 +69,32 @@ public:
 
 //////////////////////////////////////////////////////////////////////////
 
+class NodeAnimationFilm : public NodeBorder
+{
+public:
+    using this_class = NodeAnimationFilm;
+    using parent = NodeBorder;
+
+    virtual Node* clone_instantiate() const override { return new this_class; }
+    virtual void init() override 
+    {
+        parent::init();
+        init_template_file("data/dialogs/panel-animation.xml", "tpl-film");
+    }
+
+    std::shared_ptr<NodeAnimationFrame> add_frame(int duration)
+    {
+        auto b = add_child_ref<NodeAnimationFrame>();
+        b->SetWidth(30 * duration + 5 * (duration - 1));
+        //b->SetFlexGrow(duration);
+        b->SetHeightP(100);
+        b->SetMargin(0, 5, 0, 0);
+        return b;
+    }
+};
+
+//////////////////////////////////////////////////////////////////////////
+
 class NodeAnimationLayer : public NodeBorder
 {
     bool m_selected = false;
@@ -76,7 +103,6 @@ class NodeAnimationLayer : public NodeBorder
     glm::vec4 m_color_hover = glm::vec4(.5, .5, .5, 1);
     NodeText* m_label = nullptr;
     NodeCheckBox* m_visibility = nullptr;
-    NodeScroll* m_container = nullptr;
 public:
     std::function<void(NodeAnimationLayer* target)> on_selected;
     std::function<void(NodeAnimationLayer* target, bool visible)> on_visibility_changed;
@@ -91,8 +117,7 @@ public:
     virtual void draw() override;
     
     void init_controls();
-    std::shared_ptr<NodeAnimationFrame> add_frame(int duration);
     void set_text(const std::string& text) { m_label->set_text(text.c_str()); }
     void set_selected(bool selected) { m_selected = selected; }
     void set_chekcbox(bool checked) { m_visibility->set_value(checked); }
-};
+};