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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup spinfo
*/
#pragma once
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)
};
typedef struct TextViewContext {
/** Font size scaled by the interface size. */
int lheight;
/** Text selection, when a selection range is in use. */
int sel_start, sel_end;
int row_vpadding;
/** Area to draw text: (0, 0, winx, winy) with a margin applied and scroll-bar subtracted. */
rcti draw_rect;
/** Area to draw text background colors (extending beyond text in some cases). */
rcti draw_rect_outer;
/** Scroll offset in pixels. */
int scroll_ymin, scroll_ymax;
/* callbacks */
int (*begin)(struct TextViewContext *tvc);
void (*end)(struct TextViewContext *tvc);
const void *arg1;
const void *arg2;
/* iterator */
int (*step)(struct TextViewContext *tvc);
void (*line_get)(struct TextViewContext *tvc, const char **r_line, int *r_len);
enum eTextViewContext_LineFlag (*line_data)(struct TextViewContext *tvc,
uchar fg[4],
uchar bg[4],
int *r_icon,
uchar r_icon_fg[4],
uchar r_icon_bg[4]);
void (*draw_cursor)(struct TextViewContext *tvc, int cwidth, int columns);
/* constant theme colors */
void (*const_colors)(struct TextViewContext *tvc, unsigned char bg_sel[4]);
const void *iter;
int iter_index;
/** Used for internal multi-line iteration. */
int iter_char_begin;
/** The last character (not inclusive). */
int iter_char_end;
/** Internal iterator use. */
int iter_tmp;
} TextViewContext;
/**
* \param r_mval_pick_item: The resulting item clicked on using \a mval_init.
* Set from the void pointer which holds the current iterator.
* Its type depends on the data being iterated over.
* \param r_mval_pick_offset: The offset in bytes of the \a mval_init.
* Use for selection.
*/
int textview_draw(struct TextViewContext *tvc,
bool do_draw,
const int mval_init[2],
void **r_mval_pick_item,
int *r_mval_pick_offset);
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