digital_meter.h

Go to the documentation of this file.

// SPDX-FileCopyrightText: © 2019-2023 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#ifndef __GUI_WIDGETS_DIGITAL_METER_H__
#define __GUI_WIDGETS_DIGITAL_METER_H__
 
#include <stdbool.h>
 
#include "dsp/transport.h"
#include "utils/types.h"
 
#include <gtk/gtk.h>
 
#define DIGITAL_METER_WIDGET_TYPE (digital_meter_widget_get_type ())
G_DECLARE_FINAL_TYPE (
  DigitalMeterWidget,
  digital_meter_widget,
  Z,
  DIGITAL_METER_WIDGET,
  GtkWidget)
 
typedef enum NoteLength NoteLength;
typedef enum NoteType   NoteType;
typedef struct Position Position;
 
typedef enum DigitalMeterType
{
  DIGITAL_METER_TYPE_BPM,
  DIGITAL_METER_TYPE_POSITION,
  DIGITAL_METER_TYPE_TIMESIG,
  DIGITAL_METER_TYPE_NOTE_TYPE,
  DIGITAL_METER_TYPE_NOTE_LENGTH,
} DigitalMeterType;
 
typedef struct SnapGrid SnapGrid;
 
typedef struct _DigitalMeterWidget
{
  GtkWidget parent_instance;
 
  DigitalMeterType type;
 
  bool is_transport;
 
  GtkGestureDrag * drag;
  double           last_y;
  double           last_x;
  int              height_start_pos;
  int              height_end_pos;
 
  /* ========= BPM ========= */
  /* for BPM */
  int num_part_start_pos;
  int num_part_end_pos;
  int dec_part_start_pos;
  int dec_part_end_pos;
 
  bpm_t bpm_at_start;
 
  bpm_t last_set_bpm;
 
  bool update_num;
  bool update_dec;
 
  /* ========= BPM end ========= */
 
  /* ========= position ========= */
 
  int bars_start_pos;
  int bars_end_pos;
  int beats_start_pos;
  int beats_end_pos;
  int sixteenths_start_pos;
  int sixteenths_end_pos;
  int ticks_start_pos;
  int ticks_end_pos;
 
  int update_bars;
  int update_beats;
  int update_sixteenths;
  int update_ticks;
 
  /* ========= position end ========= */
 
  /* ========= time ========= */
 
  int minutes_start_pos;
  int minutes_end_pos;
  int seconds_start_pos;
  int seconds_end_pos;
  int ms_start_pos;
  int ms_end_pos;
 
  int update_minutes;
  int update_seconds;
  int update_ms;
 
  /* ========= time end ========= */
 
  /* for note length/type */
  NoteLength * note_length;
  NoteType *   note_type;
  int          update_note_length; 
  int          start_note_length;  
  int          update_note_type;   
  int          start_note_type;    
 
  /* for time sig */
  int update_timesig_top;
  /* ebeat unit */
  int update_timesig_bot;
 
  int beats_per_bar_at_start;
  int beat_unit_at_start;
 
  /* ---------- FOR POSITION ---------------- */
  void * obj;
 
  void (*getter) (void *, Position *);
  void (*setter) (void *, Position *);
  void (*on_drag_begin) (void *);
  void (*on_drag_end) (void *);
 
  /* ----------- position end --------------- */
 
  double hover_x;
  double hover_y;
 
  int draw_line;
 
  char * caption;
 
  PangoLayout * caption_layout;
  PangoLayout * seg7_layout;
  PangoLayout * normal_layout;
 
  bool initialized;
 
  GtkPopoverMenu * popover_menu;
 
  gint64 last_scroll_time;
 
  bool scroll_started;
} DigitalMeterWidget;
 
DigitalMeterWidget *
digital_meter_widget_new (
  DigitalMeterType type,
  NoteLength *     note_length,
  NoteType *       note_type,
  const char *     caption);
 
#define digital_meter_widget_new_for_position( \
  obj, drag_begin, getter, setter, drag_end, caption) \
  _digital_meter_widget_new_for_position ( \
    (void *) obj, (void (*) (void *)) drag_begin, \
    (void (*) (void *, Position *)) getter, \
    (void (*) (void *, Position *)) setter, (void (*) (void *)) drag_end, \
    caption)
 
DigitalMeterWidget *
_digital_meter_widget_new_for_position (
  void * obj,
  void (*drag_begin) (void *),
  void (*get_val) (void *, Position *),
  void (*set_val) (void *, Position *),
  void (*drag_end) (void *),
  const char * caption);
 
void
digital_meter_set_draw_line (DigitalMeterWidget * self, int draw_line);
 
void
digital_meter_show_context_menu (DigitalMeterWidget * self, GMenu * menu);
 
#endif