1st installment of 3D scene toolbar

xs/src/slic3r/GUI/GLToolbar.hpp

@@ -0,0 +1,132 @@
+#ifndef slic3r_GLToolbar_hpp_
+#define slic3r_GLToolbar_hpp_
+
+#include "../../slic3r/GUI/GLTexture.hpp"
+
+#include <string>
+#include <vector>
+
+namespace Slic3r {
+
+class Pointf;
+
+namespace GUI {
+
+class GLCanvas3D;
+
+class GLToolbarItem
+{
+public:
+    enum EType : unsigned char
+    {
+        Action,
+        Separator,
+        Num_Types
+    };
+
+    enum EState : unsigned char
+    {
+        Normal,
+        Hover,
+        Pressed,
+        Disabled,
+        Num_States
+    };
+
+    class TooltipTexture : public GLTexture
+    {
+        static const unsigned char Border_Color[3];
+        static const int Border_Offset;
+
+    public:
+        bool generate(const std::string& text);
+    };
+
+private:
+    // icon textures are assumed to be square and all with the same size in pixels, no internal check is done
+    GLTexture m_icon_textures[Num_States];
+    TooltipTexture m_tooltip_texture;
+
+    EType m_type;
+    EState m_state;
+
+    std::string m_name;
+    std::string m_tooltip;
+
+    bool m_tooltip_shown;
+
+public:
+    GLToolbarItem(EType type, const std::string& name, const std::string& tooltip);
+
+    bool load_textures(const std::string* filenames);
+
+    EState get_state() const;
+    void set_state(EState state);
+
+    const std::string& get_name() const;
+
+    void show_tooltip();
+    void hide_tooltip();
+
+    bool is_tooltip_shown() const;
+
+    unsigned int get_icon_texture_id() const;
+    int get_icon_textures_size() const;
+
+    unsigned int get_tooltip_texture_id() const;
+    int get_tooltip_texture_width() const;
+    int get_tooltip_texture_height() const;
+
+    bool is_separator() const;
+};
+
+class GLToolbar
+{
+public:
+    struct ItemCreationData
+    {
+        std::string name;
+        std::string tooltip;
+        std::string textures[GLToolbarItem::Num_States];
+    };
+
+private:
+    typedef std::vector<GLToolbarItem*> ItemsList;
+
+    bool m_enabled;
+    ItemsList m_items;
+
+    float m_textures_scale;
+    float m_offset_y;
+    float m_gap_x;
+    float m_separator_x;
+
+public:
+    GLToolbar();
+
+    bool is_enabled() const;
+    void set_enabled(bool enable);
+
+    void set_textures_scale(float scale);
+    void set_offset_y(float offset);
+    void set_gap_x(float gap);
+    void set_separator_x(float separator);
+
+    bool add_item(const ItemCreationData& data);
+    bool add_separator();
+
+    void enable_item(const std::string& name);
+    void disable_item(const std::string& name);
+
+    void update_hover_state(const GLCanvas3D& canvas, const Pointf& mouse_pos);
+
+    void render(const GLCanvas3D& canvas, const Pointf& mouse_pos) const;
+
+private:
+    float _get_total_width() const;
+};
+
+} // namespace GUI
+} // namespace Slic3r
+
+#endif // slic3r_GLToolbar_hpp_