textview.hh

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "BLI_utildefines.h"
 
#include "DNA_vec_types.h"
 
#define TVC_TAB_COLUMNS 4
 
enum eTextViewContext_LineFlag {
  TVC_LINE_FG = (1 << 0),
  TVC_LINE_BG = (1 << 1),
  TVC_LINE_ICON = (1 << 2),
  TVC_LINE_ICON_FG = (1 << 3),
  TVC_LINE_ICON_BG = (1 << 4)
};
ENUM_OPERATORS(eTextViewContext_LineFlag, TVC_LINE_ICON_BG)
 
struct TextViewContext {
  int lheight;
  int sel_start, sel_end;
 
  int row_vpadding;

  rcti draw_rect;
  rcti draw_rect_outer;

  int scroll_ymin, scroll_ymax;
 
  /* callbacks */
  int (*begin)(TextViewContext *tvc);
  void (*end)(TextViewContext *tvc);
  const void *arg1;
  const void *arg2;
 
  /* iterator */
  int (*step)(TextViewContext *tvc);
  void (*line_get)(TextViewContext *tvc, const char **r_line, int *r_len);
  enum eTextViewContext_LineFlag (*line_data)(TextViewContext *tvc,
                                              uchar fg[4],
                                              uchar bg[4],
                                              int *r_icon,
                                              uchar r_icon_fg[4],
                                              uchar r_icon_bg[4]);
  void (*draw_cursor)(TextViewContext *tvc, int cwidth, int columns);
  /* constant theme colors */
  void (*const_colors)(TextViewContext *tvc, unsigned char bg_sel[4]);
  const void *iter;
  int iter_index;
  int iter_char_begin;
  int iter_char_end;
  int iter_tmp;
};

int textview_draw(TextViewContext *tvc,
                  bool do_draw,
                  const int mval_init[2],
                  void **r_mval_pick_item,
                  int *r_mval_pick_offset);