custom_button.h

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// SPDX-FileCopyrightText: © 2019-2022 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense

 
#ifndef __GUI_WIDGETS_CUSTOM_BUTTON_H__
#define __GUI_WIDGETS_CUSTOM_BUTTON_H__
 
#include <string>
 
#include "common/utils/color.h"
#include "gui/backend/gtk_widgets/gtk_wrapper.h"

 
constexpr int CUSTOM_BUTTON_WIDGET_MAX_TRANSITION_FRAMES = 9;

class CustomButtonWidget
{
public:
  enum class State
  {
    NORMAL,
    HOVERED,
    ACTIVE,
    TOGGLED,

    SEMI_TOGGLED,
  };
 
  enum class Owner
  {
    TRACK,
    LANE,
    AT,
  };
 
public:
  CustomButtonWidget ();
  CustomButtonWidget (const std::string &iicon_name, int isize);
  CustomButtonWidget (const CustomButtonWidget &) = delete;
  CustomButtonWidget &operator= (const CustomButtonWidget &) = delete;
  CustomButtonWidget (CustomButtonWidget &&) = default;
  CustomButtonWidget &operator= (CustomButtonWidget &&) = default;
  ~CustomButtonWidget ();
 
  void draw (GtkSnapshot * snapshot, double ix, double iy, State state);

  void draw_with_text (
    GtkSnapshot * snapshot,
    double        ix,
    double        iy,
    double        iwidth,
    State         state);

  void set_text (
    PangoLayout *      ilayout,
    const std::string &itext,
    const std::string &font_descr);
 
private:
  void init ();
 
  GdkRGBA get_color_for_state (State state) const;
 
  void draw_bg (
    GtkSnapshot * snapshot,
    double        ix,
    double        iy,
    double        iwidth,
    int           draw_frame,
    State         state);
 
  void draw_icon_with_shadow (
    GtkSnapshot * snapshot,
    double        ix,
    double        iy,
    State         state);
 
public:
  Color def_color = {};

  Color hovered_color = {};

  Color toggled_color = {};

  Color held_color = {};

  std::string icon_name;

  int size = 0;

  int width = 0;

  double aspect = 1.0;

  double corner_radius = 0.0;

  GdkTexture * icon_texture = nullptr;

  State last_state = State::NORMAL;

  Owner owner_type = Owner::TRACK;

  void * owner = nullptr;

  Color last_color = {};

  std::string text;
 
  int text_height = 0;

  PangoLayout * layout = nullptr;

  double x = 0;
  double y = 0;

  unsigned int button_id = 0;

  int transition_frames = 0;
};

 
#endif