mc/edit/editwidget.c

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/* editor initialisation and callback handler.
Copyright (C) 1996, 1997 the Free Software Foundation
Authors: 1996, 1997 Paul Sheer
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., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
*/
#include <config.h>
#include "edit.h"
#include "edit-widget.h"
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#include "src/tty.h" /* LINES */
#include "src/widget.h" /* redraw_labels() */
#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;
int column_highlighting = 0;
static int edit_callback (WEdit *edit, int msg, int par);
static int
edit_event (WEdit * edit, Gpm_Event * event, int *result)
{
*result = MOU_NORMAL;
edit_update_curs_row (edit);
edit_update_curs_col (edit);
/* Unknown event type */
if (!(event->type & (GPM_DOWN | GPM_DRAG | GPM_UP)))
return 0;
/* Wheel events */
if ((event->buttons & GPM_B_UP) && (event->type & GPM_DOWN)) {
edit_move_up (edit, 2, 1);
goto update;
}
if ((event->buttons & GPM_B_DOWN) && (event->type & GPM_DOWN)) {
edit_move_down (edit, 2, 1);
goto update;
}
/* Outside editor window */
if (event->y <= 1 || event->x <= 0
|| event->x > edit->num_widget_columns
|| event->y > edit->num_widget_lines + 1)
return 0;
/* A lone up mustn't do anything */
if (edit->mark2 != -1 && event->type & (GPM_UP | GPM_DRAG))
return 1;
if (event->type & (GPM_DOWN | GPM_UP))
edit_push_key_press (edit);
edit_cursor_move (edit, edit_bol (edit, edit->curs1) - edit->curs1);
if (--event->y > (edit->curs_row + 1))
edit_cursor_move (edit,
edit_move_forward (edit, edit->curs1,
event->y - (edit->curs_row +
1), 0)
- edit->curs1);
if (event->y < (edit->curs_row + 1))
edit_cursor_move (edit,
edit_move_backward (edit, edit->curs1,
(edit->curs_row + 1) -
event->y) - edit->curs1);
edit_cursor_move (edit,
(int) edit_move_forward3 (edit, edit->curs1,
event->x -
edit->start_col - 1,
0) - edit->curs1);
edit->prev_col = edit_get_col (edit);
if (event->type & GPM_DOWN) {
edit_mark_cmd (edit, 1); /* reset */
edit->highlight = 0;
}
if (!(event->type & GPM_DRAG))
edit_mark_cmd (edit, 0);
update:
edit->force |= REDRAW_COMPLETELY;
edit_update_curs_row (edit);
edit_update_curs_col (edit);
edit_update_screen (edit);
return 1;
}
static int
edit_mouse_event (Gpm_Event *event, void *x)
{
int result;
if (edit_event ((WEdit *) x, event, &result))
return result;
else
return (*edit_menubar->widget.mouse) (event, edit_menubar);
}
static void
edit_adjust_size (Dlg_head *h)
{
WEdit *edit;
WButtonBar *edit_bar;
edit = (WEdit *) find_widget_type (h, (callback_fn) edit_callback);
edit_bar = find_buttonbar (h);
widget_set_size (&edit->widget, 0, 0, LINES - 1, COLS);
widget_set_size (&edit_bar->widget, LINES - 1, 0, 1, COLS);
widget_set_size (&edit_menubar->widget, 0, 0, 1, COLS);
#ifdef RESIZABLE_MENUBAR
menubar_arrange (edit_menubar);
#endif
}
/* Callback for the edit dialog */
static int
edit_dialog_callback (Dlg_head *h, int id, int msg)
{
WEdit *edit;
switch (msg) {
case DLG_RESIZE:
edit_adjust_size (h);
return MSG_HANDLED;
case DLG_VALIDATE:
edit = (WEdit *) find_widget_type (h, (callback_fn) edit_callback);
if (!edit_ok_to_exit (edit)) {
h->running = 1;
}
}
return default_dlg_callback (h, id, msg);
}
int
edit (const char *_file, int line)
{
static int made_directory = 0;
Dlg_head *edit_dlg;
WButtonBar *edit_bar;
if (option_backup_ext_int != -1) {
option_backup_ext = g_malloc (sizeof (int) + 1);
option_backup_ext[sizeof (int)] = '\0';
memcpy (option_backup_ext, (char *) &option_backup_ext_int,
sizeof (int));
}
if (!made_directory) {
mkdir (catstrs (home_dir, EDIT_DIR, 0), 0700);
made_directory = 1;
}
if (!(wedit = edit_init (NULL, LINES - 2, COLS, _file, line))) {
return 0;
}
/* Create a new dialog and add it widgets to it */
edit_dlg =
create_dlg (0, 0, LINES, COLS, NULL, edit_dialog_callback,
"[Internal File Editor]", NULL, DLG_WANT_TAB);
init_widget (&(wedit->widget), 0, 0, LINES - 1, COLS,
(callback_fn) edit_callback, (destroy_fn) edit_clean,
(mouse_h) edit_mouse_event, 0);
widget_want_cursor (wedit->widget, 1);
edit_bar = buttonbar_new (1);
switch (edit_key_emulation) {
case EDIT_KEY_EMULATION_NORMAL:
edit_init_menu_normal (); /* editmenu.c */
break;
case EDIT_KEY_EMULATION_EMACS:
edit_init_menu_emacs (); /* editmenu.c */
break;
}
edit_menubar = menubar_new (0, 0, COLS, EditMenuBar, N_menus);
add_widget (edit_dlg, wedit);
add_widget (edit_dlg, edit_menubar);
add_widget (edit_dlg, edit_bar);
run_dlg (edit_dlg);
edit_done_menu (); /* editmenu.c */
destroy_dlg (edit_dlg);
return 1;
}
static void edit_my_define (Dlg_head * h, int idx, char *text,
void (*fn) (WEdit *), WEdit * edit)
{
define_label_data (h, idx, text, (buttonbarfn) fn, edit);
}
static void cmd_F1 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (1));
}
static void cmd_F2 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (2));
}
static void cmd_F3 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (3));
}
static void cmd_F4 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (4));
}
static void cmd_F5 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (5));
}
static void cmd_F6 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (6));
}
static void cmd_F7 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (7));
}
static void cmd_F8 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (8));
}
#if 0
static void cmd_F9 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (9));
}
#endif
static void cmd_F10 (WEdit * edit)
{
send_message ((Widget *) edit, WIDGET_KEY, KEY_F (10));
}
static void
edit_labels (WEdit *edit)
{
Dlg_head *h = edit->widget.parent;
edit_my_define (h, 1, _("Help"), cmd_F1, edit);
edit_my_define (h, 2, _("Save"), cmd_F2, edit);
edit_my_define (h, 3, _("Mark"), cmd_F3, edit);
edit_my_define (h, 4, _("Replac"), cmd_F4, edit);
edit_my_define (h, 5, _("Copy"), cmd_F5, edit);
edit_my_define (h, 6, _("Move"), cmd_F6, edit);
edit_my_define (h, 7, _("Search"), cmd_F7, edit);
edit_my_define (h, 8, _("Delete"), cmd_F8, edit);
edit_my_define (h, 9, _("PullDn"), edit_menu_cmd, edit);
edit_my_define (h, 10, _("Quit"), cmd_F10, edit);
redraw_labels (h);
}
void edit_update_screen (WEdit * e)
{
edit_scroll_screen_over_cursor (e);
edit_update_curs_col (e);
edit_status (e);
/* pop all events for this window for internal handling */
if (!is_idle ()) {
e->force |= REDRAW_PAGE;
return;
}
if (e->force & REDRAW_COMPLETELY)
e->force |= REDRAW_PAGE;
edit_render_keypress (e);
}
static int edit_callback (WEdit *e, int msg, int par)
{
switch (msg) {
case WIDGET_INIT:
e->force |= REDRAW_COMPLETELY;
edit_labels (e);
break;
case WIDGET_DRAW:
e->force |= REDRAW_COMPLETELY;
e->num_widget_lines = LINES - 2;
e->num_widget_columns = COLS;
case WIDGET_FOCUS:
edit_update_screen (e);
return 1;
case WIDGET_KEY:{
int cmd, ch;
if (edit_drop_hotkey_menu (e, par)) /* first check alt-f, alt-e, alt-s, etc for drop menus */
return 1;
if (!edit_translate_key (e, par, &cmd, &ch))
return 0;
edit_execute_key_command (e, cmd, ch);
edit_update_screen (e);
}
return 1;
case WIDGET_COMMAND:
edit_execute_key_command (e, par, -1);
edit_update_screen (e);
return 1;
case WIDGET_CURSOR:
widget_move (&e->widget, e->curs_row + EDIT_TEXT_VERTICAL_OFFSET, e->curs_col + e->start_col);
return 1;
}
return default_proc (msg, par);
}