fix layer and frame duplicate

src/app_layout.cpp

@@ -169,8 +169,9 @@ void App::init_sidebar()
     };
 
     layers->on_layer_add = [this](Node*, std::shared_ptr<class Layer> layer, int index) {
-        canvas->m_canvas->layer_add(layers->m_layers.back()->m_label_text.c_str(), layer, index);
-        canvas->m_canvas->m_unsaved = true;
+        Canvas::I->layer_add(layers->m_layers.back()->m_label_text.c_str(), layer, index);
+        Canvas::I->m_unsaved = true;
+        Canvas::I->anim_update();
         animation->load_layers();
         title_update();
     };
@@ -179,17 +180,30 @@ void App::init_sidebar()
         Canvas::I->layer_add(layers->m_layers.back()->m_label_text.c_str(), nullptr, source_index + 1);
         auto& dst = Canvas::I->m_layers[source_index + 1];
         auto& src = Canvas::I->m_layers[source_index];
-        for (int i = 0; i < 6; i++)
+        for (int i = 1; i < src->frames_count(); i++)
+            dst->add_frame();
+        Canvas::I->anim_update();
+        for (int frame = 0; frame < src->frames_count(); frame++)
         {
-            if (!src->face(i))
-                continue;
-            dst->rtt(i).copy(src->rtt(i));
-            dst->face(i) = src->face(i);
-            dst->box(i) = src->box(i);
-            dst->m_opacity = src->m_opacity;
-            dst->m_blend_mode = src->m_blend_mode;
-            dst->m_alpha_locked = src->m_alpha_locked;
+            for (int i = 0; i < 6; i++)
+            {
+                if (!src->face(i))
+                    continue;
+                bool loaded = src->frame(frame).gpu_load();
+                dst->frame(frame).gpu_load();
+                dst->rtt(i, frame).copy(src->rtt(i));
+                dst->face(i, frame) = src->face(i);
+                dst->box(i, frame) = src->box(i);
+                if (!loaded)
+                {
+                    dst->frame(frame).gpu_unload();
+                    src->frame(frame).gpu_unload();
+                }
+            }
         }
+        dst->m_opacity = src->m_opacity;
+        dst->m_blend_mode = src->m_blend_mode;
+        dst->m_alpha_locked = src->m_alpha_locked;
         Canvas::I->m_unsaved = true;
         animation->load_layers();
         title_update();

src/canvas.cpp

@@ -1347,6 +1347,12 @@ int Canvas::anim_duration() const noexcept
     return frames;
 }
 
+void Canvas::anim_update() noexcept
+{
+    for (auto& l : m_layers)
+        l->goto_frame(m_anim_frame);
+}
+
 void Canvas::anim_goto_frame(int frame) noexcept
 {
     m_anim_frame = frame;

src/canvas.h

@@ -191,6 +191,7 @@ public:
     void layer_order(int idx, int pos);
     void layer_merge(int source_idx, int dest_idx);
     int anim_duration() const noexcept;
+    void anim_update() noexcept;
     void anim_goto_frame(int frame) noexcept;
     void anim_goto_next() noexcept;
     void anim_goto_prev() noexcept;

src/canvas_layer.cpp

@@ -27,8 +27,10 @@ bool& Layer::face(int i, int frame /*= -1*/)
     return m_frames[frame].m_dirty_face[i];
 }
 
-LayerFrame& Layer::frame()
+LayerFrame& Layer::frame(int frame /*= -1*/)
 {
+    if (frame == -1)
+        frame = m_frame_index;
     return m_frames[m_frame_index];
 }
 
@@ -205,6 +207,8 @@ void Layer::remove_frame(int frame)
 
 void Layer::duplicate_frame(int frame)
 {
+    if (frame == -1)
+        frame = m_frame_index;
     m_frames.insert(m_frames.begin() + frame + 1, m_frames[frame].clone());
     frames_gpu_update();
 }

src/canvas_layer.h

@@ -66,7 +66,7 @@ public:
     RTT& rtt(int i, int frame = -1);
     glm::vec4& box(int i, int frame = -1);
     bool& face(int i, int frame = -1);
-    LayerFrame& frame();
+    LayerFrame& frame(int frame = -1);
     void resize(int width, int height);
     bool create(int width, int height, std::string name);
     bool add_frame();