text: /*************************************************************************/
  /*  color_picker.h                                                       */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
  /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
  /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  
  #ifndef COLOR_PICKER_H
  #define COLOR_PICKER_H
  
  #include "scene/gui/box_container.h"
  #include "scene/gui/button.h"
  #include "scene/gui/check_button.h"
  #include "scene/gui/label.h"
  #include "scene/gui/line_edit.h"
  #include "scene/gui/popup.h"
  #include "scene/gui/slider.h"
  #include "scene/gui/spin_box.h"
  #include "scene/gui/texture_rect.h"
  #include "scene/gui/tool_button.h"
  
  class ColorPicker : public BoxContainer {
  
  	GDCLASS(ColorPicker, BoxContainer);
  
  private:
  	Control *screen;
  	Control *uv_edit;
  	Control *w_edit;
  	TextureRect *sample;
  	TextureRect *preset;
  	Button *bt_add_preset;
  	List<Color> presets;
  	ToolButton *btn_pick;
  	CheckButton *btn_mode;
  	HSlider *scroll[4];
  	SpinBox *values[4];
  	Label *labels[4];
  	Button *text_type;
  	LineEdit *c_text;
  	bool edit_alpha;
  	Size2i ms;
  	bool text_is_constructor;
  
  	Color color;
  	bool raw_mode_enabled;
  	bool deferred_mode_enabled;
  	bool updating;
  	bool changing_color;
  	float h, s, v;
  	Color last_hsv;
  
  	void _html_entered(const String &p_html);
  	void _value_changed(double);
  	void _update_controls();
  	void _update_color();
  	void _update_presets();
  	void _update_text_value();
  	void _text_type_toggled();
  	void _sample_draw();
  	void _hsv_draw(int p_which, Control *c);
  
  	void _uv_input(const Ref<InputEvent> &p_event);
  	void _w_input(const Ref<InputEvent> &p_event);
  	void _preset_input(const Ref<InputEvent> &p_event);
  	void _screen_input(const Ref<InputEvent> &p_event);
  	void _add_preset_pressed();
  	void _screen_pick_pressed();
  	void _focus_enter();
  	void _focus_exit();
  	void _html_focus_exit();
  
  protected:
  	void _notification(int);
  	static void _bind_methods();
  
  public:
  	void set_edit_alpha(bool p_show);
  	bool is_editing_alpha() const;
  
  	void set_pick_color(const Color &p_color);
  	Color get_pick_color() const;
  
  	void add_preset(const Color &p_color);
  	void erase_preset(const Color &p_color);
  	PoolColorArray get_presets() const;
  
  	void set_raw_mode(bool p_enabled);
  	bool is_raw_mode() const;
  
  	void set_deferred_mode(bool p_enabled);
  	bool is_deferred_mode() const;
  
  	void set_focus_on_line_edit();
  
  	ColorPicker();
  };
  
  class ColorPickerButton : public Button {
  
  	GDCLASS(ColorPickerButton, Button);
  
  	PopupPanel *popup;
  	ColorPicker *picker;
  	Color color;
  	bool edit_alpha;
  
  	void _color_changed(const Color &p_color);
  	void _modal_closed();
  
  	virtual void pressed();
  
  	void _update_picker();
  
  protected:
  	void _notification(int);
  	static void _bind_methods();
  
  public:
  	void set_pick_color(const Color &p_color);
  	Color get_pick_color() const;
  
  	void set_edit_alpha(bool p_show);
  	bool is_editing_alpha() const;
  
  	ColorPicker *get_picker();
  	PopupPanel *get_popup();
  
  	ColorPickerButton();
  };
  
  #endif // COLOR_PICKER_H
  