colorpicker.h

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/*
    This file is part of darktable,
    Copyright (C) 2011 Robert Bieber.
    Copyright (C) 2012 Richard Wonka.
    Copyright (C) 2014, 2016 Tobias Ellinghaus.
    Copyright (C) 2016 Roman Lebedev.
    Copyright (C) 2019 Edgardo Hoszowski.
    Copyright (C) 2019-2020 Pascal Obry.
    Copyright (C) 2020 Diederik Ter Rahe.
    Copyright (C) 2021 Dan Torop.
    Copyright (C) 2021 Mark-64.
    Copyright (C) 2021 Ralf Brown.
    Copyright (C) 2022 Martin Bařinka.
    Copyright (C) 2023 Alynx Zhou.
    
    darktable is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    
    darktable is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
    along with darktable.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#ifndef DT_LIBS_COLORPICKER_H
#define DT_LIBS_COLORPICKER_H
 
#include <gtk/gtk.h>
#include <inttypes.h>
 
typedef enum dt_lib_colorpicker_size_t
{
  DT_LIB_COLORPICKER_SIZE_POINT = 0,
  DT_LIB_COLORPICKER_SIZE_BOX,
} dt_lib_colorpicker_size_t;
 
typedef enum dt_lib_colorpicker_statistic_t
{
  DT_LIB_COLORPICKER_STATISTIC_MEAN = 0,
  DT_LIB_COLORPICKER_STATISTIC_MIN,
  DT_LIB_COLORPICKER_STATISTIC_MAX,
  DT_LIB_COLORPICKER_STATISTIC_N // needs to be the last one
} dt_lib_colorpicker_statistic_t;
 
typedef dt_aligned_pixel_t lib_colorpicker_sample_statistics[DT_LIB_COLORPICKER_STATISTIC_N];
 
typedef struct dt_colorpicker_sample_t
{
  // For the primary sample, these are the current sample area,
  // whether from colorpicker lib or an iop. They are used for showing
  // the sample in the center view, and sampling in the pixelpipe.
  // Coordinates are stored canonically in normalized RAW space.
  // Callers operating in processed/image space need to convert with
  // dt_dev_coordinates_raw_norm_to_image_norm().
  float point[2];
  dt_boundingbox_t box;
  dt_lib_colorpicker_size_t size;
  // NOTE: only applies to live samples
  gboolean locked;
 
  // picked color in display profile, as picked from preview pixelpipe
  lib_colorpicker_sample_statistics display;
  // picked color converted display profile -> histogram profile (currently did
  // nothing because we dropped histogram profile)
  lib_colorpicker_sample_statistics scope;
  // picked color converted display profile -> Lab
  lib_colorpicker_sample_statistics lab;
  // in scope profile with current statistic
  int label_rgb[4];
  // in display profile with current statistic
  GdkRGBA swatch;
 
  char backbuf_op[32];
 
  GtkWidget *container;
  GtkWidget *color_patch;
  GtkWidget *output_label;
} dt_colorpicker_sample_t;
 
#endif // DT_LIBS_COLORPICKER_H
 
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