51477bbc8b
* mode initializers should call text-mode-init to register ccallback for s->offset and s->top_offset, and other generic stuff. * this is error prone, should simplify this with base_mode property and keep unmapped windows lingering to get rid of ModeSavedData handlers
104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/*
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* List mode for QEmacs.
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*
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* Copyright (c) 2001, 2002 Fabrice Bellard.
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* Copyright (c) 2002-2013 Charlie Gordon.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "qe.h"
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ModeDef list_mode;
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static int list_get_colorized_line(EditState *s,
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unsigned int *buf, int buf_size,
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int *offsetp, __unused__ int line_num)
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{
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QEmacsState *qs = s->qe_state;
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int offset, len;
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offset = *offsetp;
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len = eb_get_line(s->b, buf, buf_size, offsetp);
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if (((qs->active_window == s) || s->force_highlight) &&
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s->offset >= offset && s->offset < *offsetp)
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{
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/* highlight the line if the cursor is inside */
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set_color(buf, buf + len, QE_STYLE_HIGHLIGHT);
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} else
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if (buf[0] == '*') {
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/* selection */
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set_color(buf, buf + len, QE_STYLE_SELECTION);
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}
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return len;
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}
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/* get current position (index) in list */
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int list_get_pos(EditState *s)
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{
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int line, col;
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eb_get_pos(s->b, &line, &col, s->offset);
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return line;
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}
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/* get current offset of the line in list */
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int list_get_offset(EditState *s)
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{
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int line, col;
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eb_get_pos(s->b, &line, &col, s->offset);
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return eb_goto_pos(s->b, line, 0);
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}
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void list_toggle_selection(EditState *s)
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{
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int offset;
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unsigned char ch;
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offset = list_get_offset(s);
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eb_read(s->b, offset , &ch, 1);
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if (ch == ' ')
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ch = '*';
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else
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ch = ' ';
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eb_write(s->b, offset , &ch, 1);
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text_move_up_down(s, 1);
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}
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static int list_mode_init(EditState *s, __unused__ ModeSavedData *saved_data)
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{
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text_mode_init(s, saved_data);
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s->wrap = WRAP_TRUNCATE;
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s->get_colorized_line = list_get_colorized_line;
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return 0;
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}
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static int list_init(void)
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{
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memcpy(&list_mode, &text_mode, sizeof(ModeDef));
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list_mode.name = "list";
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list_mode.mode_probe = NULL;
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list_mode.mode_init = list_mode_init;
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list_mode.mode_flags = MODEF_NOCMD;
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qe_register_mode(&list_mode);
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return 0;
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}
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qe_module_init(list_init);
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