mirror of
https://github.com/MidnightCommander/mc
synced 2024-12-22 20:36:50 +03:00
365 lines
8.6 KiB
C
365 lines
8.6 KiB
C
/* editor initialisation and callback handler.
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Copyright (C) 1996, 1997 the Free Software Foundation
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Authors: 1996, 1997 Paul Sheer
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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*/
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#include <config.h>
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#include "edit.h"
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#include "edit-widget.h"
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#include "src/tty.h" /* LINES */
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#include "src/widget.h" /* redraw_labels() */
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#include "src/menu.h" /* menubar_new() */
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#include "src/key.h" /* is_idle() */
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WEdit *wedit;
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struct WMenu *edit_menubar;
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int column_highlighting = 0;
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static cb_ret_t edit_callback (WEdit *edit, widget_msg_t msg, int parm);
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static int
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edit_event (WEdit * edit, Gpm_Event * event, int *result)
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{
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*result = MOU_NORMAL;
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edit_update_curs_row (edit);
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edit_update_curs_col (edit);
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/* Unknown event type */
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if (!(event->type & (GPM_DOWN | GPM_DRAG | GPM_UP)))
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return 0;
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/* Wheel events */
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if ((event->buttons & GPM_B_UP) && (event->type & GPM_DOWN)) {
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edit_move_up (edit, 2, 1);
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goto update;
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}
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if ((event->buttons & GPM_B_DOWN) && (event->type & GPM_DOWN)) {
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edit_move_down (edit, 2, 1);
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goto update;
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}
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/* Outside editor window */
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if (event->y <= 1 || event->x <= 0
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|| event->x > edit->num_widget_columns
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|| event->y > edit->num_widget_lines + 1)
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return 0;
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/* A lone up mustn't do anything */
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if (edit->mark2 != -1 && event->type & (GPM_UP | GPM_DRAG))
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return 1;
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if (event->type & (GPM_DOWN | GPM_UP))
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edit_push_key_press (edit);
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edit_cursor_move (edit, edit_bol (edit, edit->curs1) - edit->curs1);
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if (--event->y > (edit->curs_row + 1))
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edit_cursor_move (edit,
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edit_move_forward (edit, edit->curs1,
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event->y - (edit->curs_row +
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1), 0)
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- edit->curs1);
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if (event->y < (edit->curs_row + 1))
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edit_cursor_move (edit,
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edit_move_backward (edit, edit->curs1,
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(edit->curs_row + 1) -
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event->y) - edit->curs1);
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edit_cursor_move (edit,
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(int) edit_move_forward3 (edit, edit->curs1,
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event->x -
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edit->start_col - 1,
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0) - edit->curs1);
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edit->prev_col = edit_get_col (edit);
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if (event->type & GPM_DOWN) {
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edit_mark_cmd (edit, 1); /* reset */
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edit->highlight = 0;
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}
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if (!(event->type & GPM_DRAG))
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edit_mark_cmd (edit, 0);
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update:
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edit->force |= REDRAW_COMPLETELY;
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edit_update_curs_row (edit);
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edit_update_curs_col (edit);
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edit_update_screen (edit);
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return 1;
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}
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static int
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edit_mouse_event (Gpm_Event *event, void *x)
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{
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int result;
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if (edit_event ((WEdit *) x, event, &result))
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return result;
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else
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return (*edit_menubar->widget.mouse) (event, edit_menubar);
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}
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static void
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edit_adjust_size (Dlg_head *h)
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{
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WEdit *edit;
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WButtonBar *edit_bar;
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edit = (WEdit *) find_widget_type (h, edit_callback);
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edit_bar = find_buttonbar (h);
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widget_set_size (&edit->widget, 0, 0, LINES - 1, COLS);
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widget_set_size (&edit_bar->widget, LINES - 1, 0, 1, COLS);
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widget_set_size (&edit_menubar->widget, 0, 0, 1, COLS);
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#ifdef RESIZABLE_MENUBAR
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menubar_arrange (edit_menubar);
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#endif
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}
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/* Callback for the edit dialog */
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static cb_ret_t
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edit_dialog_callback (Dlg_head *h, dlg_msg_t msg, int parm)
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{
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WEdit *edit;
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switch (msg) {
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case DLG_RESIZE:
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edit_adjust_size (h);
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return MSG_HANDLED;
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case DLG_VALIDATE:
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edit = (WEdit *) find_widget_type (h, edit_callback);
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if (!edit_ok_to_exit (edit)) {
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h->running = 1;
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}
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return MSG_HANDLED;
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default:
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return default_dlg_callback (h, msg, parm);
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}
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}
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int
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edit (const char *_file, int line)
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{
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static int made_directory = 0;
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Dlg_head *edit_dlg;
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WButtonBar *edit_bar;
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if (option_backup_ext_int != -1) {
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option_backup_ext = g_malloc (sizeof (int) + 1);
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option_backup_ext[sizeof (int)] = '\0';
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memcpy (option_backup_ext, (char *) &option_backup_ext_int,
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sizeof (int));
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}
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if (!made_directory) {
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mkdir (catstrs (home_dir, EDIT_DIR, 0), 0700);
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made_directory = 1;
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}
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if (!(wedit = edit_init (NULL, LINES - 2, COLS, _file, line))) {
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return 0;
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}
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/* Create a new dialog and add it widgets to it */
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edit_dlg =
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create_dlg (0, 0, LINES, COLS, NULL, edit_dialog_callback,
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"[Internal File Editor]", NULL, DLG_WANT_TAB);
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init_widget (&(wedit->widget), 0, 0, LINES - 1, COLS,
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(callback_fn) edit_callback,
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(mouse_h) edit_mouse_event);
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widget_want_cursor (wedit->widget, 1);
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edit_bar = buttonbar_new (1);
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switch (edit_key_emulation) {
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case EDIT_KEY_EMULATION_NORMAL:
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edit_init_menu_normal (); /* editmenu.c */
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break;
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case EDIT_KEY_EMULATION_EMACS:
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edit_init_menu_emacs (); /* editmenu.c */
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break;
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}
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edit_menubar = menubar_new (0, 0, COLS, EditMenuBar, N_menus);
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add_widget (edit_dlg, edit_bar);
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add_widget (edit_dlg, wedit);
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add_widget (edit_dlg, edit_menubar);
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run_dlg (edit_dlg);
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edit_done_menu (); /* editmenu.c */
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destroy_dlg (edit_dlg);
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return 1;
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}
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static void edit_my_define (Dlg_head * h, int idx, char *text,
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void (*fn) (WEdit *), WEdit * edit)
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{
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define_label_data (h, idx, text, (buttonbarfn) fn, edit);
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}
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static void cmd_F1 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (1));
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}
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static void cmd_F2 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (2));
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}
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static void cmd_F3 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (3));
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}
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static void cmd_F4 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (4));
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}
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static void cmd_F5 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (5));
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}
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static void cmd_F6 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (6));
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}
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static void cmd_F7 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (7));
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}
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static void cmd_F8 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (8));
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}
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#if 0
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static void cmd_F9 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (9));
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}
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#endif
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static void cmd_F10 (WEdit * edit)
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{
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send_message ((Widget *) edit, WIDGET_KEY, KEY_F (10));
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}
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static void
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edit_labels (WEdit *edit)
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{
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Dlg_head *h = edit->widget.parent;
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edit_my_define (h, 1, _("Help"), cmd_F1, edit);
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edit_my_define (h, 2, _("Save"), cmd_F2, edit);
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edit_my_define (h, 3, _("Mark"), cmd_F3, edit);
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edit_my_define (h, 4, _("Replac"), cmd_F4, edit);
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edit_my_define (h, 5, _("Copy"), cmd_F5, edit);
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edit_my_define (h, 6, _("Move"), cmd_F6, edit);
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edit_my_define (h, 7, _("Search"), cmd_F7, edit);
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edit_my_define (h, 8, _("Delete"), cmd_F8, edit);
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edit_my_define (h, 9, _("PullDn"), edit_menu_cmd, edit);
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edit_my_define (h, 10, _("Quit"), cmd_F10, edit);
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redraw_labels (h);
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}
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void edit_update_screen (WEdit * e)
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{
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edit_scroll_screen_over_cursor (e);
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edit_update_curs_col (e);
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edit_status (e);
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/* pop all events for this window for internal handling */
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if (!is_idle ()) {
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e->force |= REDRAW_PAGE;
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return;
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}
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if (e->force & REDRAW_COMPLETELY)
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e->force |= REDRAW_PAGE;
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edit_render_keypress (e);
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}
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static cb_ret_t
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edit_callback (WEdit *e, widget_msg_t msg, int parm)
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{
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switch (msg) {
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case WIDGET_INIT:
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e->force |= REDRAW_COMPLETELY;
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edit_labels (e);
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return MSG_HANDLED;
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case WIDGET_DRAW:
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e->force |= REDRAW_COMPLETELY;
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e->num_widget_lines = LINES - 2;
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e->num_widget_columns = COLS;
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/* fallthrough */
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case WIDGET_FOCUS:
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edit_update_screen (e);
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return MSG_HANDLED;
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case WIDGET_KEY:
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{
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int cmd, ch;
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/* first check alt-f, alt-e, alt-s, etc for drop menus */
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if (edit_drop_hotkey_menu (e, parm))
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return MSG_HANDLED;
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if (!edit_translate_key (e, parm, &cmd, &ch))
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return MSG_NOT_HANDLED;
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edit_execute_key_command (e, cmd, ch);
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edit_update_screen (e);
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}
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return MSG_HANDLED;
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case WIDGET_CURSOR:
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widget_move (&e->widget, e->curs_row + EDIT_TEXT_VERTICAL_OFFSET,
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e->curs_col + e->start_col);
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return MSG_HANDLED;
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case WIDGET_DESTROY:
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edit_clean (e);
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return MSG_HANDLED;
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default:
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return default_proc (msg, parm);
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}
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}
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