4 Copyright (C) 1996-2024
5 Free Software Foundation, Inc.
9 Andrew Borodin <aborodin@vmail.ru> 2012-2022
10 Slava Zanko <slavazanko@gmail.com>, 2013
12 This file is part of the Midnight Commander.
14 The Midnight Commander is free software: you can redistribute it
15 and/or modify it under the terms of the GNU General Public License as
16 published by the Free Software Foundation, either version 3 of the License,
17 or (at your option) any later version.
19 The Midnight Commander is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 * \brief Source: editor text drawing
38 #include <sys/types.h>
44 #include "lib/global.h"
45 #include "lib/tty/tty.h" /* tty_printf() */
46 #include "lib/tty/key.h" /* is_idle() */
48 #include "lib/strutil.h" /* utf string functions */
49 #include "lib/util.h" /* is_printable() */
50 #include "lib/widget.h"
52 #include "lib/charsets.h"
55 #include "edit-impl.h"
56 #include "editwidget.h"
58 /*** global variables ****************************************************************************/
60 /*** file scope macro definitions ****************************************************************/
62 #define MAX_LINE_LEN 1024
65 #define MOD_ABNORMAL (1 << 8)
66 #define MOD_BOLD (1 << 9)
67 #define MOD_MARKED (1 << 10)
68 #define MOD_CURSOR (1 << 11)
69 #define MOD_WHITESPACE (1 << 12)
71 #define edit_move(x,y) widget_gotoyx(edit, y, x);
73 #define key_pending(x) (!is_idle())
75 #define EDITOR_MINIMUM_TERMINAL_WIDTH 30
77 /*** file scope type declarations ****************************************************************/
85 /*** forward declarations (file scope functions) *************************************************/
87 /*** file scope variables ************************************************************************/
89 /*** file scope functions ************************************************************************/
92 printwstr (const char *s
, int len
)
95 tty_printf ("%-*.*s", len
, len
, s
);
98 /* --------------------------------------------------------------------------------------------- */
101 status_string (WEdit
*edit
, char *s
, int w
)
106 * If we are at the end of file, print <EOF>,
107 * otherwise print the current character as is (if printable),
108 * as decimal and as hex.
110 if (edit
->buffer
.curs1
>= edit
->buffer
.size
)
111 strcpy (byte_str
, "<EOF> ");
115 unsigned int cur_utf
;
118 cur_utf
= edit_buffer_get_utf (&edit
->buffer
, edit
->buffer
.curs1
, &char_length
);
120 g_snprintf (byte_str
, sizeof (byte_str
), "%04u 0x%03X",
121 (unsigned) cur_utf
, (unsigned) cur_utf
);
124 cur_utf
= edit_buffer_get_current_byte (&edit
->buffer
);
125 g_snprintf (byte_str
, sizeof (byte_str
), "%04d 0x%03X",
126 (int) cur_utf
, (unsigned) cur_utf
);
132 unsigned char cur_byte
;
134 cur_byte
= edit_buffer_get_current_byte (&edit
->buffer
);
135 g_snprintf (byte_str
, sizeof (byte_str
), "%4d 0x%03X", (int) cur_byte
, (unsigned) cur_byte
);
138 /* The field lengths just prevent the status line from shortening too much */
139 if (edit_options
.simple_statusbar
)
141 "%c%c%c%c %3ld %5ld/%ld %6ld/%ld %s %s",
142 edit
->mark1
!= edit
->mark2
? (edit
->column_highlight
? 'C' : 'B') : '-',
143 edit
->modified
? 'M' : '-',
144 macro_index
< 0 ? '-' : 'R',
145 edit
->overwrite
== 0 ? '-' : 'O',
146 edit
->curs_col
+ edit
->over_col
,
147 edit
->buffer
.curs_line
+ 1,
148 edit
->buffer
.lines
+ 1, (long) edit
->buffer
.curs1
, (long) edit
->buffer
.size
,
151 mc_global
.source_codepage
>= 0 ? get_codepage_id (mc_global
.source_codepage
) :
156 "[%c%c%c%c] %2ld L:[%3ld+%2ld %3ld/%3ld] *(%-4ld/%4ldb) %s %s",
157 edit
->mark1
!= edit
->mark2
? (edit
->column_highlight
? 'C' : 'B') : '-',
158 edit
->modified
? 'M' : '-',
159 macro_index
< 0 ? '-' : 'R',
160 edit
->overwrite
== 0 ? '-' : 'O',
161 edit
->curs_col
+ edit
->over_col
,
162 edit
->start_line
+ 1,
164 edit
->buffer
.curs_line
+ 1,
165 edit
->buffer
.lines
+ 1, (long) edit
->buffer
.curs1
, (long) edit
->buffer
.size
,
168 mc_global
.source_codepage
>= 0 ? get_codepage_id (mc_global
.source_codepage
) :
173 /* --------------------------------------------------------------------------------------------- */
175 * Draw the status line at the top of the screen for fullscreen editor window.
177 * @param edit editor object
178 * @param color color pair
182 edit_status_fullscreen (WEdit
*edit
, int color
)
184 Widget
*h
= WIDGET (WIDGET (edit
)->owner
);
185 const int w
= h
->rect
.cols
;
186 const int gap
= 3; /* between the filename and the status */
187 const int right_gap
= 5; /* at the right end of the screen */
188 const int preferred_fname_len
= 16;
192 const char *fname
= "";
196 status
= g_malloc (status_size
);
197 status_string (edit
, status
, status_size
);
198 status_len
= (int) str_term_width1 (status
);
200 if (edit
->filename_vpath
!= NULL
)
202 fname
= vfs_path_get_last_path_str (edit
->filename_vpath
);
204 if (!edit_options
.state_full_filename
)
205 fname
= x_basename (fname
);
208 fname_len
= str_term_width1 (fname
);
209 if (fname_len
< preferred_fname_len
)
210 fname_len
= preferred_fname_len
;
212 if (fname_len
+ gap
+ status_len
+ right_gap
>= w
)
214 if (preferred_fname_len
+ gap
+ status_len
+ right_gap
>= w
)
215 fname_len
= preferred_fname_len
;
217 fname_len
= w
- (gap
+ status_len
+ right_gap
);
218 fname
= str_trunc (fname
, fname_len
);
221 widget_gotoyx (h
, 0, 0);
222 tty_setcolor (color
);
223 printwstr (fname
, fname_len
+ gap
);
224 printwstr (status
, w
- (fname_len
+ gap
));
226 if (edit_options
.simple_statusbar
&& w
> EDITOR_MINIMUM_TERMINAL_WIDTH
)
230 percent
= edit_buffer_calc_percent (&edit
->buffer
, edit
->buffer
.curs1
);
231 widget_gotoyx (h
, 0, w
- 6 - 6);
232 tty_printf (" %3d%%", percent
);
238 /* --------------------------------------------------------------------------------------------- */
240 * Draw status line for editor window if window is not in fullscreen mode.
242 * @param edit editor object
246 edit_status_window (WEdit
*edit
)
248 Widget
*w
= WIDGET (edit
);
250 int cols
= w
->rect
.cols
;
252 tty_setcolor (STATUSBAR_COLOR
);
256 const char *fname
= N_("NoName");
258 if (edit
->filename_vpath
!= NULL
)
260 fname
= vfs_path_get_last_path_str (edit
->filename_vpath
);
262 if (!edit_options
.state_full_filename
)
263 fname
= x_basename (fname
);
271 tty_printf ("[%s]", str_term_trim (fname
, w
->rect
.cols
- 8 - 6));
277 if (x
+ 6 <= cols
- 2 - 6)
280 tty_printf ("[%c%c%c%c]",
281 edit
->mark1
!= edit
->mark2
? (edit
->column_highlight
? 'C' : 'B') : '-',
282 edit
->modified
? 'M' : '-',
283 macro_index
< 0 ? '-' : 'R', edit
->overwrite
== 0 ? '-' : 'O');
288 edit_move (2, w
->rect
.lines
- 1);
289 tty_printf ("%3ld %5ld/%ld %6ld/%ld",
290 edit
->curs_col
+ edit
->over_col
,
291 edit
->buffer
.curs_line
+ 1, edit
->buffer
.lines
+ 1, (long) edit
->buffer
.curs1
,
292 (long) edit
->buffer
.size
);
296 * If we are at the end of file, print <EOF>,
297 * otherwise print the current character as is (if printable),
298 * as decimal and as hex.
302 edit_move (32, w
->rect
.lines
- 1);
303 if (edit
->buffer
.curs1
>= edit
->buffer
.size
)
304 tty_print_string ("[<EOF> ]");
308 unsigned int cur_utf
;
311 cur_utf
= edit_buffer_get_utf (&edit
->buffer
, edit
->buffer
.curs1
, &char_length
);
312 if (char_length
<= 0)
313 cur_utf
= edit_buffer_get_current_byte (&edit
->buffer
);
314 tty_printf ("[%05u 0x%04X]", cur_utf
, cur_utf
);
319 unsigned char cur_byte
;
321 cur_byte
= edit_buffer_get_current_byte (&edit
->buffer
);
322 tty_printf ("[%05u 0x%04X]", (unsigned int) cur_byte
, (unsigned int) cur_byte
);
327 /* --------------------------------------------------------------------------------------------- */
329 * Draw a frame around edit area.
331 * @param edit editor object
332 * @param color color pair
333 * @param active TRUE if editor object is focused
337 edit_draw_frame (const WEdit
*edit
, int color
, gboolean active
)
339 const Widget
*w
= CONST_WIDGET (edit
);
341 /* draw a frame around edit area */
342 tty_setcolor (color
);
343 /* draw double frame for active window if skin supports that */
344 tty_draw_box (w
->rect
.y
, w
->rect
.x
, w
->rect
.lines
, w
->rect
.cols
, !active
);
345 /* draw a drag marker */
346 if (edit
->drag_state
== MCEDIT_DRAG_NONE
)
348 tty_setcolor (EDITOR_FRAME_DRAG
);
349 widget_gotoyx (w
, w
->rect
.lines
- 1, w
->rect
.cols
- 1);
350 tty_print_alt_char (ACS_LRCORNER
, TRUE
);
354 /* --------------------------------------------------------------------------------------------- */
356 * Draw a window control buttons.
358 * @param edit editor object
359 * @param color color pair
363 edit_draw_window_icons (const WEdit
*edit
, int color
)
365 const Widget
*w
= CONST_WIDGET (edit
);
368 tty_setcolor (color
);
369 if (edit
->fullscreen
)
370 widget_gotoyx (w
->owner
, 0, WIDGET (w
->owner
)->rect
.cols
- 6);
372 widget_gotoyx (w
, 0, w
->rect
.cols
- 8);
373 g_snprintf (tmp
, sizeof (tmp
), "[%s][%s]", edit_window_state_char
, edit_window_close_char
);
374 tty_print_string (tmp
);
377 /* --------------------------------------------------------------------------------------------- */
380 print_to_widget (WEdit
*edit
, long row
, int start_col
, int start_col_real
,
381 long end_col
, line_s line
[], char *status
, int bookmarked
)
383 Widget
*w
= WIDGET (edit
);
385 int x
, x1
, y
, cols_to_skip
;
391 x1
= start_col
+ EDIT_TEXT_HORIZONTAL_OFFSET
+ edit_options
.line_state_width
;
392 y
= row
+ EDIT_TEXT_VERTICAL_OFFSET
;
393 cols_to_skip
= abs (x
);
395 if (!edit
->fullscreen
)
401 tty_setcolor (EDITOR_NORMAL_COLOR
);
403 tty_setcolor (bookmarked
);
405 len
= end_col
+ 1 - start_col
;
406 wrap_start
= edit_options
.word_wrap_line_length
+ edit
->start_col
;
408 if (len
> 0 && w
->rect
.y
+ y
>= 0)
410 if (!edit_options
.show_right_margin
|| wrap_start
> end_col
)
411 tty_draw_hline (w
->rect
.y
+ y
, w
->rect
.x
+ x1
, ' ', len
);
412 else if (wrap_start
< 0)
414 tty_setcolor (EDITOR_RIGHT_MARGIN_COLOR
);
415 tty_draw_hline (w
->rect
.y
+ y
, w
->rect
.x
+ x1
, ' ', len
);
420 tty_draw_hline (w
->rect
.y
+ y
, w
->rect
.x
+ x1
, ' ', wrap_start
);
425 tty_setcolor (EDITOR_RIGHT_MARGIN_COLOR
);
426 tty_draw_hline (w
->rect
.y
+ y
, w
->rect
.x
+ x1
+ wrap_start
, ' ', len
);
431 if (edit_options
.line_state
)
433 tty_setcolor (LINE_STATE_COLOR
);
435 for (i
= 0; i
< LINE_STATE_WIDTH
; i
++)
437 edit_move (x1
+ i
- edit_options
.line_state_width
, y
);
438 if (status
[i
] == '\0')
440 tty_print_char (status
[i
]);
447 for (p
= line
; p
->ch
!= 0; p
++)
450 unsigned int textchar
;
452 if (cols_to_skip
!= 0)
458 style
= p
->style
& 0xFF00;
461 if ((style
& MOD_WHITESPACE
) != 0)
463 if ((style
& MOD_MARKED
) == 0)
464 tty_setcolor (EDITOR_WHITESPACE_COLOR
);
468 tty_setcolor (EDITOR_MARKED_COLOR
);
471 else if ((style
& MOD_BOLD
) != 0)
472 tty_setcolor (EDITOR_BOLD_COLOR
);
473 else if ((style
& MOD_MARKED
) != 0)
474 tty_setcolor (EDITOR_MARKED_COLOR
);
475 else if ((style
& MOD_ABNORMAL
) != 0)
476 tty_setcolor (EDITOR_NONPRINTABLE_COLOR
);
478 tty_lowlevel_setcolor (p
->style
>> 16);
480 if (edit_options
.show_right_margin
)
482 if (i
> edit_options
.word_wrap_line_length
+ edit
->start_col
)
483 tty_setcolor (EDITOR_RIGHT_MARGIN_COLOR
);
487 tty_print_anychar (textchar
);
491 /* --------------------------------------------------------------------------------------------- */
492 /** b is a pointer to the beginning of the line */
495 edit_draw_this_line (WEdit
*edit
, off_t b
, long row
, long start_col
, long end_col
)
497 Widget
*w
= WIDGET (edit
);
498 line_s line
[MAX_LINE_LEN
];
501 int col
, start_col_real
;
504 char line_stat
[LINE_STATE_WIDTH
+ 1] = "\0";
506 if (row
> w
->rect
.lines
- 1 - EDIT_TEXT_VERTICAL_OFFSET
- 2 * (edit
->fullscreen
? 0 : 1))
509 if (book_mark_query_color (edit
, edit
->start_line
+ row
, BOOK_MARK_COLOR
))
510 book_mark
= BOOK_MARK_COLOR
;
511 else if (book_mark_query_color (edit
, edit
->start_line
+ row
, BOOK_MARK_FOUND_COLOR
))
512 book_mark
= BOOK_MARK_FOUND_COLOR
;
515 abn_style
= book_mark
<< 16;
517 abn_style
= MOD_ABNORMAL
;
519 end_col
-= EDIT_TEXT_HORIZONTAL_OFFSET
+ edit_options
.line_state_width
;
520 if (!edit
->fullscreen
)
523 if (w
->rect
.x
+ w
->rect
.cols
<= WIDGET (w
->owner
)->rect
.cols
)
527 q
= edit_move_forward3 (edit
, b
, start_col
- edit
->start_col
, 0);
528 col
= (int) edit_move_forward3 (edit
, b
, 0, q
);
529 start_col_real
= col
+ edit
->start_col
;
531 if (edit_options
.line_state
)
535 cur_line
= edit
->start_line
+ row
;
536 if (cur_line
<= edit
->buffer
.lines
)
537 g_snprintf (line_stat
, sizeof (line_stat
), "%7ld ", cur_line
+ 1);
540 memset (line_stat
, ' ', LINE_STATE_WIDTH
);
541 line_stat
[LINE_STATE_WIDTH
] = '\0';
544 if (book_mark_query_color (edit
, cur_line
, BOOK_MARK_COLOR
))
545 g_snprintf (line_stat
, 2, "*");
548 if (col
<= -(edit
->start_col
+ 16))
549 start_col_real
= start_col
= 0;
552 off_t m1
= 0, m2
= 0;
554 eval_marks (edit
, &m1
, &m2
);
556 if (row
<= edit
->buffer
.lines
- edit
->start_line
)
560 if (edit_options
.visible_tws
&& tty_use_colors ())
561 for (tws
= edit_buffer_get_eol (&edit
->buffer
, b
); tws
> b
; tws
--)
565 c
= edit_buffer_get_byte (&edit
->buffer
, tws
- 1);
570 while (col
<= end_col
- edit
->start_col
)
574 gboolean wide_width_char
= FALSE
;
575 gboolean control_char
= FALSE
;
578 p
->style
= q
== edit
->buffer
.curs1
? MOD_CURSOR
: 0;
580 if (q
>= m1
&& q
< m2
)
582 if (!edit
->column_highlight
)
583 p
->style
|= MOD_MARKED
;
588 x
= (long) edit_move_forward3 (edit
, b
, 0, q
);
589 cl
= MIN (edit
->column1
, edit
->column2
);
592 cl
= MAX (edit
->column1
, edit
->column2
);
594 p
->style
|= MOD_MARKED
;
599 if (q
== edit
->bracket
)
600 p
->style
|= MOD_BOLD
;
601 if (q
>= edit
->found_start
&& q
< (off_t
) (edit
->found_start
+ edit
->found_len
))
602 p
->style
|= MOD_BOLD
;
606 c
= edit_buffer_get_utf (&edit
->buffer
, q
, &char_length
);
609 c
= edit_buffer_get_byte (&edit
->buffer
, q
);
611 /* we don't use bg for mc - fg contains both */
613 p
->style
|= book_mark
<< 16;
618 color
= edit_get_syntax_color (edit
, q
);
619 p
->style
|= color
<< 16;
625 col
= end_col
- edit
->start_col
+ 1; /* quit */
633 i
= TAB_SIZE
- ((int) col
% TAB_SIZE
);
634 tab_over
= (end_col
- edit
->start_col
) - (col
+ i
- 1);
638 if ((edit_options
.visible_tabs
|| (edit_options
.visible_tws
&& q
>= tws
))
639 && enable_show_tabs_tws
&& tty_use_colors ())
641 if ((p
->style
& MOD_MARKED
) != 0)
643 else if (book_mark
!= 0)
644 c
|= book_mark
<< 16;
646 c
= p
->style
| MOD_WHITESPACE
;
678 else if (edit_options
.visible_tws
&& q
>= tws
&& enable_show_tabs_tws
679 && tty_use_colors ())
682 p
->style
|= MOD_WHITESPACE
;
683 c
= p
->style
& ~MOD_CURSOR
;
695 c
= p
->style
& ~MOD_CURSOR
;
708 if (edit_options
.visible_tws
&& q
>= tws
&& enable_show_tabs_tws
709 && tty_use_colors ())
712 p
->style
|= MOD_WHITESPACE
;
721 if (mc_global
.utf8_display
)
724 c
= convert_from_8bit_to_utf_c ((unsigned char) c
, edit
->converter
);
725 else if (g_unichar_iswide (c
))
727 wide_width_char
= TRUE
;
732 c
= convert_from_utf_to_current_c (c
, edit
->converter
);
734 c
= convert_to_display_c (c
);
737 /* Caret notation for control characters */
741 p
->style
= abn_style
;
744 p
->style
= abn_style
;
753 p
->style
= abn_style
;
756 p
->style
= abn_style
;
765 if (g_unichar_isprint (c
))
770 p
->style
= abn_style
;
777 if ((mc_global
.utf8_display
&& g_unichar_isprint (c
)) ||
778 (!mc_global
.utf8_display
&& is_printable (c
)))
786 p
->style
= abn_style
;
796 q
+= char_length
- 1;
798 if (col
> (end_col
- edit
->start_col
+ 1))
817 print_to_widget (edit
, row
, start_col
, start_col_real
, end_col
, line
, line_stat
, book_mark
);
820 /* --------------------------------------------------------------------------------------------- */
823 edit_draw_this_char (WEdit
*edit
, off_t curs
, long row
, long start_column
, long end_column
)
827 b
= edit_buffer_get_bol (&edit
->buffer
, curs
);
828 edit_draw_this_line (edit
, b
, row
, start_column
, end_column
);
831 /* --------------------------------------------------------------------------------------------- */
832 /** cursor must be in screen for other than REDRAW_PAGE passed in force */
835 render_edit_text (WEdit
*edit
, long start_row
, long start_column
, long end_row
, long end_column
)
837 static long prev_curs_row
= 0;
838 static off_t prev_curs
= 0;
840 Widget
*we
= WIDGET (edit
);
841 Widget
*wh
= WIDGET (we
->owner
);
842 WRect
*w
= &we
->rect
;
844 int force
= edit
->force
;
846 int last_line
, last_column
;
848 /* draw only visible region */
850 last_line
= wh
->rect
.y
+ wh
->rect
.lines
- 1;
853 if (y1
> last_line
- 1 /* buttonbar */ )
856 last_column
= wh
->rect
.x
+ wh
->rect
.cols
- 1;
859 if (x1
> last_column
)
862 y2
= w
->y
+ w
->lines
- 1;
863 if (y2
< wh
->rect
.y
+ 1 /* menubar */ )
866 x2
= w
->x
+ w
->cols
- 1;
870 if ((force
& REDRAW_IN_BOUNDS
) == 0)
872 /* !REDRAW_IN_BOUNDS means to ignore bounds and redraw whole rows */
873 /* draw only visible region */
875 if (y2
<= last_line
- 1 /* buttonbar */ )
876 end_row
= w
->lines
- 1;
877 else if (y1
>= wh
->rect
.y
+ 1 /* menubar */ )
878 end_row
= wh
->rect
.lines
- 1 - y1
- 1;
880 end_row
= start_row
+ wh
->rect
.lines
- 1 - 1;
882 if (x2
<= last_column
)
883 end_column
= w
->cols
- 1;
884 else if (x1
>= wh
->rect
.x
)
885 end_column
= wh
->rect
.cols
- 1 - x1
;
887 end_column
= start_column
+ wh
->rect
.cols
- 1;
891 * If the position of the page has not moved then we can draw the cursor
892 * character only. This will prevent line flicker when using arrow keys.
894 if ((force
& REDRAW_CHAR_ONLY
) == 0 || (force
& REDRAW_PAGE
) != 0)
899 if ((force
& REDRAW_PAGE
) != 0)
901 b
= edit_buffer_get_forward_offset (&edit
->buffer
, edit
->start_display
, start_row
, 0);
902 for (row
= start_row
; row
<= end_row
; row
++)
904 if (key_pending (edit
))
906 edit_draw_this_line (edit
, b
, row
, start_column
, end_column
);
907 b
= edit_buffer_get_forward_offset (&edit
->buffer
, b
, 1, 0);
912 long curs_row
= edit
->curs_row
;
914 if ((force
& REDRAW_BEFORE_CURSOR
) != 0 && start_row
< curs_row
)
918 b
= edit
->start_display
;
919 upto
= MIN (curs_row
- 1, end_row
);
920 for (row
= start_row
; row
<= upto
; row
++)
922 if (key_pending (edit
))
924 edit_draw_this_line (edit
, b
, row
, start_column
, end_column
);
925 b
= edit_buffer_get_forward_offset (&edit
->buffer
, b
, 1, 0);
929 /* if (force & REDRAW_LINE) ---> default */
930 b
= edit_buffer_get_current_bol (&edit
->buffer
);
931 if (curs_row
>= start_row
&& curs_row
<= end_row
)
933 if (key_pending (edit
))
935 edit_draw_this_line (edit
, b
, curs_row
, start_column
, end_column
);
938 if ((force
& REDRAW_AFTER_CURSOR
) != 0 && end_row
> curs_row
)
940 b
= edit_buffer_get_forward_offset (&edit
->buffer
, b
, 1, 0);
941 for (row
= MAX (curs_row
+ 1, start_row
); row
<= end_row
; row
++)
943 if (key_pending (edit
))
945 edit_draw_this_line (edit
, b
, row
, start_column
, end_column
);
946 b
= edit_buffer_get_forward_offset (&edit
->buffer
, b
, 1, 0);
950 if ((force
& REDRAW_LINE_ABOVE
) != 0 && curs_row
>= 1)
953 b
= edit_buffer_get_current_bol (&edit
->buffer
);
954 b
= edit_buffer_get_backward_offset (&edit
->buffer
, b
, 1);
955 if (row
>= start_row
&& row
<= end_row
)
957 if (key_pending (edit
))
959 edit_draw_this_line (edit
, b
, row
, start_column
, end_column
);
963 if ((force
& REDRAW_LINE_BELOW
) != 0 && row
< w
->lines
- 1)
966 b
= edit_buffer_get_current_bol (&edit
->buffer
);
967 b
= edit_buffer_get_forward_offset (&edit
->buffer
, b
, 1, 0);
968 if (row
>= start_row
&& row
<= end_row
)
970 if (key_pending (edit
))
972 edit_draw_this_line (edit
, b
, row
, start_column
, end_column
);
977 else if (prev_curs_row
< edit
->curs_row
)
979 /* with the new text highlighting, we must draw from the top down */
980 edit_draw_this_char (edit
, prev_curs
, prev_curs_row
, start_column
, end_column
);
981 edit_draw_this_char (edit
, edit
->buffer
.curs1
, edit
->curs_row
, start_column
, end_column
);
985 edit_draw_this_char (edit
, edit
->buffer
.curs1
, edit
->curs_row
, start_column
, end_column
);
986 edit_draw_this_char (edit
, prev_curs
, prev_curs_row
, start_column
, end_column
);
991 prev_curs_row
= edit
->curs_row
;
992 prev_curs
= edit
->buffer
.curs1
;
995 /* --------------------------------------------------------------------------------------------- */
998 edit_render (WEdit
*edit
, int page
, int row_start
, int col_start
, int row_end
, int col_end
)
1000 if (page
!= 0) /* if it was an expose event, 'page' would be set */
1001 edit
->force
|= REDRAW_PAGE
| REDRAW_IN_BOUNDS
;
1003 render_edit_text (edit
, row_start
, col_start
, row_end
, col_end
);
1006 * edit->force != 0 means a key was pending and the redraw
1007 * was halted, so next time we must redraw everything in case stuff
1008 * was left undrawn from a previous key press.
1010 if (edit
->force
!= 0)
1011 edit
->force
|= REDRAW_PAGE
;
1014 /* --------------------------------------------------------------------------------------------- */
1015 /*** public functions ****************************************************************************/
1016 /* --------------------------------------------------------------------------------------------- */
1019 edit_status (WEdit
*edit
, gboolean active
)
1023 if (edit
->fullscreen
)
1025 color
= STATUSBAR_COLOR
;
1026 edit_status_fullscreen (edit
, color
);
1030 color
= edit
->drag_state
!= MCEDIT_DRAG_NONE
? EDITOR_FRAME_DRAG
: active
?
1031 EDITOR_FRAME_ACTIVE
: EDITOR_FRAME
;
1032 edit_draw_frame (edit
, color
, active
);
1033 edit_status_window (edit
);
1036 edit_draw_window_icons (edit
, color
);
1039 /* --------------------------------------------------------------------------------------------- */
1041 /** this scrolls the text so that cursor is on the screen */
1043 edit_scroll_screen_over_cursor (WEdit
*edit
)
1045 WRect
*w
= &WIDGET (edit
)->rect
;
1049 int b_extreme
, t_extreme
, l_extreme
, r_extreme
;
1051 if (w
->lines
<= 0 || w
->cols
<= 0)
1054 rect_resize (w
, -EDIT_TEXT_VERTICAL_OFFSET
,
1055 -(EDIT_TEXT_HORIZONTAL_OFFSET
+ edit_options
.line_state_width
));
1057 if (!edit
->fullscreen
)
1058 rect_grow (w
, -1, -1);
1060 r_extreme
= EDIT_RIGHT_EXTREME
;
1061 l_extreme
= EDIT_LEFT_EXTREME
;
1062 b_extreme
= EDIT_BOTTOM_EXTREME
;
1063 t_extreme
= EDIT_TOP_EXTREME
;
1064 if (edit
->found_len
!= 0)
1066 b_extreme
= MAX (w
->lines
/ 4, b_extreme
);
1067 t_extreme
= MAX (w
->lines
/ 4, t_extreme
);
1069 if (b_extreme
+ t_extreme
+ 1 > w
->lines
)
1073 n
= b_extreme
+ t_extreme
;
1076 b_extreme
= (b_extreme
* (w
->lines
- 1)) / n
;
1077 t_extreme
= (t_extreme
* (w
->lines
- 1)) / n
;
1079 if (l_extreme
+ r_extreme
+ 1 > w
->cols
)
1083 n
= l_extreme
+ r_extreme
;
1086 l_extreme
= (l_extreme
* (w
->cols
- 1)) / n
;
1087 r_extreme
= (r_extreme
* (w
->cols
- 1)) / n
;
1089 p
= edit_get_col (edit
) + edit
->over_col
;
1090 edit_update_curs_row (edit
);
1091 outby
= p
+ edit
->start_col
- w
->cols
+ 1 + (r_extreme
+ edit
->found_len
);
1093 edit_scroll_right (edit
, outby
);
1094 outby
= l_extreme
- p
- edit
->start_col
;
1096 edit_scroll_left (edit
, outby
);
1098 outby
= p
- w
->lines
+ 1 + b_extreme
;
1100 edit_scroll_downward (edit
, outby
);
1101 outby
= t_extreme
- p
;
1103 edit_scroll_upward (edit
, outby
);
1104 edit_update_curs_row (edit
);
1106 rect_resize (w
, EDIT_TEXT_VERTICAL_OFFSET
,
1107 EDIT_TEXT_HORIZONTAL_OFFSET
+ edit_options
.line_state_width
);
1108 if (!edit
->fullscreen
)
1109 rect_grow (w
, 1, 1);
1112 /* --------------------------------------------------------------------------------------------- */
1115 edit_render_keypress (WEdit
*edit
)
1117 edit_render (edit
, 0, 0, 0, 0, 0);
1120 /* --------------------------------------------------------------------------------------------- */