improving actions history

src/canvas_layer.h

@@ -0,0 +1,45 @@
+#pragma once
+#include "rtt.h"
+#include "log.h"
+
+class LayerFrame
+{
+
+};
+
+class Layer
+{
+public:
+    Layer() = default;
+    Layer(const Layer&) = delete;
+    ~Layer() { LOG("LAYER AUTO DESTROY"); destroy(); }
+    RTT m_rtt[6];
+    glm::vec4 m_dirty_box[6] = SIXPLETTE(glm::vec4(0));
+    bool m_dirty_face[6] = SIXPLETTE(false);
+    bool m_visible = true;
+    bool m_alpha_locked = false;
+    float m_opacity = 1.f;
+    bool m_hightlight = false;
+    int m_blend_mode = 0;
+    std::string m_name;
+    int w = 0;
+    int h = 0;
+    struct Snapshot
+    {
+        std::unique_ptr<uint8_t[]> image[6] = SIXPLETTE(0);
+        glm::vec4 m_dirty_box[6] = SIXPLETTE(glm::vec4(0));
+        bool m_dirty_face[6] = SIXPLETTE(false);
+        int width = 0;
+        int height = 0;
+        void create(int w, int h);
+        void clear();
+        void optimize();
+    };
+    void resize(int width, int height);
+    bool create(int width, int height, std::string name);
+    void clear(const glm::vec4& c);
+    Snapshot snapshot();
+    void restore(const Snapshot& snap);
+    void destroy();
+    void optimize();
+};