/* editor initialisation and callback handler. Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /** \file * \brief Source: editor initialisation and callback handler * \author Paul Sheer * \date 1996, 1997 */ #include #include #include #include #include #include #include #include #include #include #include "../src/global.h" #include "../src/tty/tty.h" /* LINES, COLS */ #include "../src/tty/key.h" /* is_idle() */ #include "edit-impl.h" #include "edit-widget.h" #include "../src/dialog.h" #include "../src/widget.h" /* ButtonBar */ #include "../src/menu.h" /* menubar_new() */ #include "../src/cmddef.h" WEdit *wedit; struct WMenuBar *edit_menubar; int column_highlighting = 0; static cb_ret_t edit_callback (Widget *, widget_msg_t msg, int parm); static char * edit_get_shortcut (unsigned long command) { const char *ext_map; const char *shortcut = NULL; shortcut = lookup_keymap_shortcut (editor_map, command); if (shortcut != NULL) return g_strdup (shortcut); ext_map = lookup_keymap_shortcut (editor_map, CK_Ext_Mode); if (ext_map != NULL) shortcut = lookup_keymap_shortcut (editor_x_map, command); if (shortcut != NULL) return g_strdup_printf ("%s %s", ext_map, shortcut); return NULL; } static int edit_event (Gpm_Event *event, void *data) { WEdit *edit = (WEdit *) data; /* Unknown event type */ if (!(event->type & (GPM_DOWN | GPM_DRAG | GPM_UP))) return MOU_NORMAL; /* rest of the upper frame, the menu is invisible - call menu */ if ((event->type & GPM_DOWN) && (event->y == 1)) return edit_menubar->widget.mouse (event, edit_menubar); edit_update_curs_row (edit); edit_update_curs_col (edit); /* Outside editor window */ if (event->y <= 1 || event->x <= 0 || event->x > edit->num_widget_columns || event->y > edit->num_widget_lines + 1) return MOU_NORMAL; /* 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; } /* A lone up mustn't do anything */ if (edit->mark2 != -1 && event->type & (GPM_UP | GPM_DRAG)) return MOU_NORMAL; if (event->type & (GPM_DOWN | GPM_UP)) edit_push_key_press (edit); if (option_cursor_beyond_eol) { long line_len = edit_move_forward3 (edit, edit_bol (edit, edit->curs1), 0, edit_eol(edit, edit->curs1)); if ( event->x > line_len ) { edit->over_col = event->x - line_len - edit->start_col - option_line_state_width - 1; edit->prev_col = line_len; } else { edit->over_col = 0; edit->prev_col = event->x - option_line_state_width - edit->start_col - 1; } } else { edit->prev_col = event->x - edit->start_col - option_line_state_width - 1; } if (--event->y > (edit->curs_row + 1)) edit_move_down (edit, event->y - (edit->curs_row + 1), 0); else if (event->y < (edit->curs_row + 1)) edit_move_up (edit, (edit->curs_row + 1) - event->y, 0); else edit_move_to_prev_col (edit, edit_bol (edit, edit->curs1)); 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_find_bracket (edit); edit->force |= REDRAW_COMPLETELY; edit_update_curs_row (edit); edit_update_curs_col (edit); edit_update_screen (edit); return MOU_NORMAL; } static cb_ret_t edit_command_execute (WEdit *edit, unsigned long command) { if (command == CK_Menu) edit_menu_cmd (edit); else { edit_execute_key_command (edit, command, -1); edit_update_screen (edit); } return MSG_HANDLED; } static inline void edit_set_buttonbar (WEdit *edit, WButtonBar *bb) { buttonbar_set_label (bb, 1, Q_("ButtonBar|Help"), editor_map, (Widget *) edit); buttonbar_set_label (bb, 2, Q_("ButtonBar|Save"), editor_map, (Widget *) edit); buttonbar_set_label (bb, 3, Q_("ButtonBar|Mark"), editor_map, (Widget *) edit); buttonbar_set_label (bb, 4, Q_("ButtonBar|Replac"), editor_map, (Widget *) edit); buttonbar_set_label (bb, 5, Q_("ButtonBar|Copy"), editor_map, (Widget *) edit); buttonbar_set_label (bb, 6, Q_("ButtonBar|Move"), editor_map, (Widget *) edit); buttonbar_set_label (bb, 7, Q_("ButtonBar|Search"), editor_map, (Widget *) edit); buttonbar_set_label (bb, 8, Q_("ButtonBar|Delete"), editor_map, (Widget *) edit); buttonbar_set_label (bb, 9, Q_("ButtonBar|PullDn"), editor_map, (Widget *) edit); buttonbar_set_label (bb, 10, Q_("ButtonBar|Quit"), editor_map, (Widget *) edit); } /* Callback for the edit dialog */ static cb_ret_t edit_dialog_callback (Dlg_head *h, Widget *sender, dlg_msg_t msg, int parm, void *data) { WEdit *edit; WMenuBar *menubar; WButtonBar *buttonbar; edit = (WEdit *) find_widget_type (h, edit_callback); menubar = find_menubar (h); buttonbar = find_buttonbar (h); switch (msg) { case DLG_INIT: edit_set_buttonbar (edit, buttonbar); return MSG_HANDLED; case DLG_RESIZE: widget_set_size (&edit->widget, 0, 0, LINES - 1, COLS); widget_set_size (&buttonbar->widget , LINES - 1, 0, 1, COLS); widget_set_size (&menubar->widget, 0, 0, 1, COLS); menubar_arrange (menubar); return MSG_HANDLED; case DLG_ACTION: if (sender == (Widget *) menubar) return send_message ((Widget *) edit, WIDGET_COMMAND, parm); if (sender == (Widget *) buttonbar) return send_message ((Widget *) edit, WIDGET_COMMAND, parm); return MSG_HANDLED; case DLG_VALIDATE: if (!edit_ok_to_exit (edit)) h->running = 1; return MSG_HANDLED; default: return default_dlg_callback (h, sender, msg, parm, data); } } int edit_file (const char *_file, int line) { static gboolean made_directory = FALSE; Dlg_head *edit_dlg; if (!made_directory) { char *dir = concat_dir_and_file (home_dir, EDIT_DIR); made_directory = (mkdir (dir, 0700) != -1 || errno == EEXIST); g_free (dir); } wedit = edit_init (NULL, LINES - 2, COLS, _file, line); if (wedit == NULL) 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); edit_dlg->get_shortcut = edit_get_shortcut; edit_menubar = menubar_new (0, 0, COLS, NULL); add_widget (edit_dlg, edit_menubar); edit_init_menu (edit_menubar); init_widget (&(wedit->widget), 0, 0, LINES - 1, COLS, edit_callback, edit_event); widget_want_cursor (wedit->widget, 1); add_widget (edit_dlg, wedit); add_widget (edit_dlg, buttonbar_new (TRUE)); run_dlg (edit_dlg); destroy_dlg (edit_dlg); return 1; } const char * edit_get_file_name (const WEdit *edit) { return edit->filename; } 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; else { if (e->force & REDRAW_COMPLETELY) e->force |= REDRAW_PAGE; edit_render_keypress (e); } } static cb_ret_t edit_callback (Widget *w, widget_msg_t msg, int parm) { WEdit *e = (WEdit *) w; switch (msg) { case WIDGET_DRAW: e->force |= REDRAW_COMPLETELY; e->num_widget_lines = LINES - 2; e->num_widget_columns = COLS; /* fallthrough */ case WIDGET_FOCUS: edit_update_screen (e); return MSG_HANDLED; case WIDGET_KEY: { int cmd, ch; cb_ret_t ret = MSG_NOT_HANDLED; /* The user may override the access-keys for the menu bar. */ if (edit_translate_key (e, parm, &cmd, &ch)) { edit_execute_key_command (e, cmd, ch); edit_update_screen (e); ret = MSG_HANDLED; } else if (edit_drop_hotkey_menu (e, parm)) ret = MSG_HANDLED; return ret; } case WIDGET_COMMAND: /* command from menubar or buttonbar */ return edit_command_execute (e, parm); case WIDGET_CURSOR: widget_move (&e->widget, e->curs_row + EDIT_TEXT_VERTICAL_OFFSET, e->curs_col + e->start_col + e->over_col + EDIT_TEXT_HORIZONTAL_OFFSET + option_line_state_width); return MSG_HANDLED; case WIDGET_DESTROY: edit_clean (e); return MSG_HANDLED; default: return default_proc (msg, parm); } }