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/*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file
* \ingroup spinfo
*/
#ifndef __TEXTVIEW_H__
#define __TEXTVIEW_H__
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;
int textview_draw(struct TextViewContext *tvc,
const bool do_draw,
const int mval_init[2],
void **r_mval_pick_item,
int *r_mval_pick_offset);
#endif /* __TEXTVIEW_H__ */
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