mirror of
https://github.com/MidnightCommander/mc
synced 2024-12-23 04:46:55 +03:00
7257f794d2
Add section for forward declarations of local functions. This section is
located before file scope variables because functions can be used in
strucutres (see find.c for example):
/*** forward declarations (file scope functions) *************************************************/
/* button callbacks */
static int start_stop (WButton * button, int action);
static int find_do_view_file (WButton * button, int action);
static int find_do_edit_file (WButton * button, int action);
/*** file scope variables ************************************************************************/
static struct
{
...
bcback_fn callback;
} fbuts[] =
{
...
{ B_STOP, NORMAL_BUTTON, N_("S&uspend"), 0, 0, NULL, start_stop },
...
{ B_VIEW, NORMAL_BUTTON, N_("&View - F3"), 0, 0, NULL, find_do_view_file },
{ B_VIEW, NORMAL_BUTTON, N_("&Edit - F4"), 0, 0, NULL, find_do_edit_file }
};
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
1094 lines
31 KiB
C
1094 lines
31 KiB
C
/*
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Pulldown menu code
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Copyright (C) 1994-2023
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Free Software Foundation, Inc.
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Written by:
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Andrew Borodin <aborodin@vmail.ru>, 2012-2022
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This file is part of the Midnight Commander.
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The Midnight Commander is free software: you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the License,
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or (at your option) any later version.
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The Midnight Commander 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, see <http://www.gnu.org/licenses/>.
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*/
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/** \file menu.c
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* \brief Source: pulldown menu code
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*/
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#include <config.h>
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#include <ctype.h>
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#include <stdarg.h>
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#include <string.h>
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#include <sys/types.h>
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#include "lib/global.h"
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#include "lib/tty/tty.h"
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#include "lib/skin.h"
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#include "lib/tty/key.h" /* key macros */
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#include "lib/strutil.h"
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#include "lib/widget.h"
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#include "lib/event.h" /* mc_event_raise() */
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/*** global variables ****************************************************************************/
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const global_keymap_t *menu_map = NULL;
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/*** file scope macro definitions ****************************************************************/
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#define MENUENTRY(x) ((menu_entry_t *)(x))
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#define MENU(x) ((menu_t *)(x))
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/*** file scope type declarations ****************************************************************/
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struct menu_entry_t
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{
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unsigned char first_letter;
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hotkey_t text;
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long command;
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char *shortcut;
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};
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struct menu_t
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{
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int start_x; /* position relative to menubar start */
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hotkey_t text;
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GList *entries;
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size_t max_entry_len; /* cached max length of entry texts (text + shortcut) */
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size_t max_hotkey_len; /* cached max length of shortcuts */
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unsigned int selected; /* pointer to current menu entry */
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char *help_node;
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};
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/*** forward declarations (file scope functions) *************************************************/
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/*** file scope variables ************************************************************************/
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/* --------------------------------------------------------------------------------------------- */
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/*** file scope functions ************************************************************************/
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/* --------------------------------------------------------------------------------------------- */
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static void
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menu_arrange (menu_t * menu, dlg_shortcut_str get_shortcut)
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{
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if (menu != NULL)
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{
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GList *i;
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size_t max_shortcut_len = 0;
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menu->max_entry_len = 1;
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menu->max_hotkey_len = 1;
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for (i = menu->entries; i != NULL; i = g_list_next (i))
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{
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menu_entry_t *entry = MENUENTRY (i->data);
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if (entry != NULL)
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{
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size_t len;
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len = (size_t) hotkey_width (entry->text);
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menu->max_hotkey_len = MAX (menu->max_hotkey_len, len);
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if (get_shortcut != NULL)
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entry->shortcut = get_shortcut (entry->command);
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if (entry->shortcut != NULL)
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{
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len = (size_t) str_term_width1 (entry->shortcut);
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max_shortcut_len = MAX (max_shortcut_len, len);
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}
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}
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}
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menu->max_entry_len = menu->max_hotkey_len + max_shortcut_len;
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}
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_paint_idx (const WMenuBar * menubar, unsigned int idx, int color)
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{
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const WRect *w = &CONST_WIDGET (menubar)->rect;
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const menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->selected));
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const menu_entry_t *entry = MENUENTRY (g_list_nth_data (menu->entries, idx));
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const int y = 2 + idx;
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int x = menu->start_x;
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if (x + menu->max_entry_len + 4 > (gsize) w->cols)
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x = w->cols - menu->max_entry_len - 4;
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if (entry == NULL)
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{
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/* menu separator */
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tty_setcolor (MENU_ENTRY_COLOR);
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widget_gotoyx (menubar, y, x - 1);
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tty_print_alt_char (ACS_LTEE, FALSE);
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tty_draw_hline (w->y + y, w->x + x, ACS_HLINE, menu->max_entry_len + 3);
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widget_gotoyx (menubar, y, x + menu->max_entry_len + 3);
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tty_print_alt_char (ACS_RTEE, FALSE);
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}
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else
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{
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int yt, xt;
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/* menu text */
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tty_setcolor (color);
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widget_gotoyx (menubar, y, x);
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tty_print_char ((unsigned char) entry->first_letter);
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tty_getyx (&yt, &xt);
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tty_draw_hline (yt, xt, ' ', menu->max_entry_len + 2); /* clear line */
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tty_print_string (entry->text.start);
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if (entry->text.hotkey != NULL)
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{
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tty_setcolor (color == MENU_SELECTED_COLOR ? MENU_HOTSEL_COLOR : MENU_HOT_COLOR);
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tty_print_string (entry->text.hotkey);
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tty_setcolor (color);
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}
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if (entry->text.end != NULL)
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tty_print_string (entry->text.end);
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if (entry->shortcut != NULL)
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{
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widget_gotoyx (menubar, y, x + menu->max_hotkey_len + 3);
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tty_print_string (entry->shortcut);
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}
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/* move cursor to the start of entry text */
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widget_gotoyx (menubar, y, x + 1);
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}
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_draw_drop (const WMenuBar * menubar)
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{
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const WRect *w = &CONST_WIDGET (menubar)->rect;
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const menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->selected));
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const unsigned int count = g_list_length (menu->entries);
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int column = menu->start_x - 1;
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unsigned int i;
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if (column + menu->max_entry_len + 5 > (gsize) w->cols)
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column = w->cols - menu->max_entry_len - 5;
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if (mc_global.tty.shadows)
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tty_draw_box_shadow (w->y + 1, w->x + column, count + 2, menu->max_entry_len + 5,
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SHADOW_COLOR);
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tty_setcolor (MENU_ENTRY_COLOR);
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tty_draw_box (w->y + 1, w->x + column, count + 2, menu->max_entry_len + 5, FALSE);
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for (i = 0; i < count; i++)
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menubar_paint_idx (menubar, i,
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i == menu->selected ? MENU_SELECTED_COLOR : MENU_ENTRY_COLOR);
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_set_color (const WMenuBar * menubar, gboolean current, gboolean hotkey)
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{
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if (!widget_get_state (CONST_WIDGET (menubar), WST_FOCUSED))
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tty_setcolor (MENU_INACTIVE_COLOR);
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else if (current)
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tty_setcolor (hotkey ? MENU_HOTSEL_COLOR : MENU_SELECTED_COLOR);
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else
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tty_setcolor (hotkey ? MENU_HOT_COLOR : MENU_ENTRY_COLOR);
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_draw (const WMenuBar * menubar)
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{
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const WRect *w = &CONST_WIDGET (menubar)->rect;
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GList *i;
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/* First draw the complete menubar */
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tty_setcolor (widget_get_state (WIDGET (menubar), WST_FOCUSED) ? MENU_ENTRY_COLOR :
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MENU_INACTIVE_COLOR);
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tty_draw_hline (w->y, w->x, ' ', w->cols);
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/* Now each one of the entries */
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for (i = menubar->menu; i != NULL; i = g_list_next (i))
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{
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menu_t *menu = MENU (i->data);
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gboolean is_selected = (menubar->selected == (gsize) g_list_position (menubar->menu, i));
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menubar_set_color (menubar, is_selected, FALSE);
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widget_gotoyx (menubar, 0, menu->start_x);
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tty_print_char (' ');
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tty_print_string (menu->text.start);
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if (menu->text.hotkey != NULL)
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{
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menubar_set_color (menubar, is_selected, TRUE);
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tty_print_string (menu->text.hotkey);
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menubar_set_color (menubar, is_selected, FALSE);
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}
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if (menu->text.end != NULL)
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tty_print_string (menu->text.end);
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tty_print_char (' ');
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}
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if (menubar->is_dropped)
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menubar_draw_drop (menubar);
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else
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widget_gotoyx (menubar, 0,
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MENU (g_list_nth_data (menubar->menu, menubar->selected))->start_x);
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_remove (WMenuBar * menubar)
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{
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Widget *g;
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if (!menubar->is_dropped)
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return;
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/* HACK: before refresh the dialog, change the current widget to keep the order
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of overlapped widgets. This is useful in multi-window editor.
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In general, menubar should be a special object, not an ordinary widget
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in the current dialog. */
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g = WIDGET (WIDGET (menubar)->owner);
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GROUP (g)->current = widget_find (g, widget_find_by_id (g, menubar->previous_widget));
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menubar->is_dropped = FALSE;
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do_refresh ();
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menubar->is_dropped = TRUE;
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/* restore current widget */
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GROUP (g)->current = widget_find (g, WIDGET (menubar));
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_left (WMenuBar * menubar)
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{
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menubar_remove (menubar);
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if (menubar->selected == 0)
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menubar->selected = g_list_length (menubar->menu) - 1;
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else
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menubar->selected--;
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menubar_draw (menubar);
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_right (WMenuBar * menubar)
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{
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menubar_remove (menubar);
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menubar->selected = (menubar->selected + 1) % g_list_length (menubar->menu);
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menubar_draw (menubar);
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_finish (WMenuBar * menubar)
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{
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Widget *w = WIDGET (menubar);
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menubar->is_dropped = FALSE;
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w->rect.lines = 1;
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widget_want_hotkey (w, FALSE);
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widget_set_options (w, WOP_SELECTABLE, FALSE);
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if (!mc_global.keybar_visible)
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widget_hide (w);
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else
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{
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/* Move the menubar to the bottom so that widgets displayed on top of
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* an "invisible" menubar get the first chance to respond to mouse events. */
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widget_set_bottom (w);
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}
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/* background must be bottom */
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if (DIALOG (w->owner)->bg != NULL)
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widget_set_bottom (WIDGET (DIALOG (w->owner)->bg));
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group_select_widget_by_id (w->owner, menubar->previous_widget);
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do_refresh ();
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_drop (WMenuBar * menubar, unsigned int selected)
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{
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menubar->is_dropped = TRUE;
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menubar->selected = selected;
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menubar_draw (menubar);
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_execute (WMenuBar * menubar)
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{
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const menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->selected));
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const menu_entry_t *entry = MENUENTRY (g_list_nth_data (menu->entries, menu->selected));
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if ((entry != NULL) && (entry->command != CK_IgnoreKey))
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{
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Widget *w = WIDGET (menubar);
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mc_global.widget.is_right = (menubar->selected != 0);
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menubar_finish (menubar);
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send_message (w->owner, w, MSG_ACTION, entry->command, NULL);
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do_refresh ();
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}
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_down (WMenuBar * menubar)
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{
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menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->selected));
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const unsigned int len = g_list_length (menu->entries);
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menu_entry_t *entry;
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menubar_paint_idx (menubar, menu->selected, MENU_ENTRY_COLOR);
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do
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{
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menu->selected = (menu->selected + 1) % len;
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entry = MENUENTRY (g_list_nth_data (menu->entries, menu->selected));
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}
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while ((entry == NULL) || (entry->command == CK_IgnoreKey));
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menubar_paint_idx (menubar, menu->selected, MENU_SELECTED_COLOR);
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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menubar_up (WMenuBar * menubar)
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{
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menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->selected));
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const unsigned int len = g_list_length (menu->entries);
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menu_entry_t *entry;
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menubar_paint_idx (menubar, menu->selected, MENU_ENTRY_COLOR);
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do
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{
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if (menu->selected == 0)
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menu->selected = len - 1;
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else
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menu->selected--;
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entry = MENUENTRY (g_list_nth_data (menu->entries, menu->selected));
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}
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while ((entry == NULL) || (entry->command == CK_IgnoreKey));
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menubar_paint_idx (menubar, menu->selected, MENU_SELECTED_COLOR);
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}
|
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|
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/* --------------------------------------------------------------------------------------------- */
|
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|
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static void
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menubar_first (WMenuBar * menubar)
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{
|
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if (menubar->is_dropped)
|
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{
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menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->selected));
|
|
|
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if (menu->selected == 0)
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return;
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menubar_paint_idx (menubar, menu->selected, MENU_ENTRY_COLOR);
|
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|
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menu->selected = 0;
|
|
|
|
while (TRUE)
|
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{
|
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menu_entry_t *entry;
|
|
|
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entry = MENUENTRY (g_list_nth_data (menu->entries, menu->selected));
|
|
|
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if ((entry == NULL) || (entry->command == CK_IgnoreKey))
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menu->selected++;
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else
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break;
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}
|
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menubar_paint_idx (menubar, menu->selected, MENU_SELECTED_COLOR);
|
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}
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else
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{
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menubar->selected = 0;
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menubar_draw (menubar);
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}
|
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}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static void
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menubar_last (WMenuBar * menubar)
|
|
{
|
|
if (menubar->is_dropped)
|
|
{
|
|
menu_t *menu = MENU (g_list_nth_data (menubar->menu, menubar->selected));
|
|
const unsigned int len = g_list_length (menu->entries);
|
|
menu_entry_t *entry;
|
|
|
|
if (menu->selected == len - 1)
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return;
|
|
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menubar_paint_idx (menubar, menu->selected, MENU_ENTRY_COLOR);
|
|
|
|
menu->selected = len;
|
|
|
|
do
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|
{
|
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menu->selected--;
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entry = MENUENTRY (g_list_nth_data (menu->entries, menu->selected));
|
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}
|
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while ((entry == NULL) || (entry->command == CK_IgnoreKey));
|
|
|
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menubar_paint_idx (menubar, menu->selected, MENU_SELECTED_COLOR);
|
|
}
|
|
else
|
|
{
|
|
menubar->selected = g_list_length (menubar->menu) - 1;
|
|
menubar_draw (menubar);
|
|
}
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static cb_ret_t
|
|
menubar_try_drop_menu (WMenuBar * menubar, int hotkey)
|
|
{
|
|
GList *i;
|
|
|
|
for (i = menubar->menu; i != NULL; i = g_list_next (i))
|
|
{
|
|
menu_t *menu = MENU (i->data);
|
|
|
|
if (menu->text.hotkey != NULL && hotkey == g_ascii_tolower (menu->text.hotkey[0]))
|
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{
|
|
menubar_drop (menubar, g_list_position (menubar->menu, i));
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return MSG_HANDLED;
|
|
}
|
|
}
|
|
|
|
return MSG_NOT_HANDLED;
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|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static cb_ret_t
|
|
menubar_try_exec_menu (WMenuBar * menubar, int hotkey)
|
|
{
|
|
menu_t *menu;
|
|
GList *i;
|
|
|
|
menu = g_list_nth_data (menubar->menu, menubar->selected);
|
|
|
|
for (i = menu->entries; i != NULL; i = g_list_next (i))
|
|
{
|
|
const menu_entry_t *entry = MENUENTRY (i->data);
|
|
|
|
if (entry != NULL && entry->text.hotkey != NULL
|
|
&& hotkey == g_ascii_tolower (entry->text.hotkey[0]))
|
|
{
|
|
menu->selected = g_list_position (menu->entries, i);
|
|
menubar_execute (menubar);
|
|
return MSG_HANDLED;
|
|
}
|
|
}
|
|
|
|
return MSG_NOT_HANDLED;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static cb_ret_t
|
|
menubar_execute_cmd (WMenuBar * menubar, long command)
|
|
{
|
|
cb_ret_t ret = MSG_HANDLED;
|
|
|
|
switch (command)
|
|
{
|
|
case CK_Help:
|
|
{
|
|
ev_help_t event_data = { NULL, NULL };
|
|
|
|
if (menubar->is_dropped)
|
|
event_data.node =
|
|
MENU (g_list_nth_data (menubar->menu, menubar->selected))->help_node;
|
|
else
|
|
event_data.node = "[Menu Bar]";
|
|
|
|
mc_event_raise (MCEVENT_GROUP_CORE, "help", &event_data);
|
|
menubar_draw (menubar);
|
|
}
|
|
break;
|
|
|
|
case CK_Left:
|
|
menubar_left (menubar);
|
|
break;
|
|
case CK_Right:
|
|
menubar_right (menubar);
|
|
break;
|
|
case CK_Up:
|
|
if (menubar->is_dropped)
|
|
menubar_up (menubar);
|
|
break;
|
|
case CK_Down:
|
|
if (menubar->is_dropped)
|
|
menubar_down (menubar);
|
|
else
|
|
menubar_drop (menubar, menubar->selected);
|
|
break;
|
|
case CK_Home:
|
|
menubar_first (menubar);
|
|
break;
|
|
case CK_End:
|
|
menubar_last (menubar);
|
|
break;
|
|
|
|
case CK_Enter:
|
|
if (menubar->is_dropped)
|
|
menubar_execute (menubar);
|
|
else
|
|
menubar_drop (menubar, menubar->selected);
|
|
break;
|
|
case CK_Quit:
|
|
menubar_finish (menubar);
|
|
break;
|
|
|
|
default:
|
|
ret = MSG_NOT_HANDLED;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static int
|
|
menubar_handle_key (WMenuBar * menubar, int key)
|
|
{
|
|
long cmd;
|
|
cb_ret_t ret = MSG_NOT_HANDLED;
|
|
|
|
cmd = widget_lookup_key (WIDGET (menubar), key);
|
|
|
|
if (cmd != CK_IgnoreKey)
|
|
ret = menubar_execute_cmd (menubar, cmd);
|
|
|
|
if (ret != MSG_HANDLED)
|
|
{
|
|
if (menubar->is_dropped)
|
|
ret = menubar_try_exec_menu (menubar, key);
|
|
else
|
|
ret = menubar_try_drop_menu (menubar, key);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static gboolean
|
|
menubar_refresh (WMenuBar * menubar)
|
|
{
|
|
Widget *w = WIDGET (menubar);
|
|
|
|
if (!widget_get_state (w, WST_FOCUSED))
|
|
return FALSE;
|
|
|
|
/* Trick to get all the mouse events */
|
|
w->rect.lines = LINES;
|
|
|
|
/* Trick to get all of the hotkeys */
|
|
widget_want_hotkey (w, TRUE);
|
|
return TRUE;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static inline void
|
|
menubar_free_menu (WMenuBar * menubar)
|
|
{
|
|
g_clear_list (&menubar->menu, (GDestroyNotify) destroy_menu);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static cb_ret_t
|
|
menubar_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
|
|
{
|
|
WMenuBar *menubar = MENUBAR (w);
|
|
|
|
switch (msg)
|
|
{
|
|
/* We do not want the focus unless we have been activated */
|
|
case MSG_FOCUS:
|
|
if (menubar_refresh (menubar))
|
|
{
|
|
menubar_draw (menubar);
|
|
return MSG_HANDLED;
|
|
}
|
|
return MSG_NOT_HANDLED;
|
|
|
|
case MSG_UNFOCUS:
|
|
return widget_get_state (w, WST_FOCUSED) ? MSG_NOT_HANDLED : MSG_HANDLED;
|
|
|
|
/* We don't want the buttonbar to activate while using the menubar */
|
|
case MSG_HOTKEY:
|
|
case MSG_KEY:
|
|
if (widget_get_state (w, WST_FOCUSED))
|
|
{
|
|
menubar_handle_key (menubar, parm);
|
|
return MSG_HANDLED;
|
|
}
|
|
return MSG_NOT_HANDLED;
|
|
|
|
case MSG_CURSOR:
|
|
/* Put the cursor in a suitable place */
|
|
return MSG_NOT_HANDLED;
|
|
|
|
case MSG_DRAW:
|
|
if (widget_get_state (w, WST_VISIBLE) || menubar_refresh (menubar))
|
|
menubar_draw (menubar);
|
|
return MSG_HANDLED;
|
|
|
|
case MSG_RESIZE:
|
|
/* try show menu after screen resize */
|
|
widget_default_callback (w, NULL, MSG_RESIZE, 0, data);
|
|
menubar_refresh (menubar);
|
|
return MSG_HANDLED;
|
|
|
|
case MSG_DESTROY:
|
|
menubar_free_menu (menubar);
|
|
return MSG_HANDLED;
|
|
|
|
default:
|
|
return widget_default_callback (w, sender, msg, parm, data);
|
|
}
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static unsigned int
|
|
menubar_get_menu_by_x_coord (const WMenuBar * menubar, int x)
|
|
{
|
|
unsigned int i;
|
|
GList *menu;
|
|
|
|
for (i = 0, menu = menubar->menu;
|
|
menu != NULL && x >= MENU (menu->data)->start_x; i++, menu = g_list_next (menu))
|
|
;
|
|
|
|
/* Don't set the invalid value -1 */
|
|
if (i != 0)
|
|
i--;
|
|
|
|
return i;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static gboolean
|
|
menubar_mouse_on_menu (const WMenuBar * menubar, int y, int x)
|
|
{
|
|
const WRect *w = &CONST_WIDGET (menubar)->rect;
|
|
menu_t *menu;
|
|
int left_x, right_x, bottom_y;
|
|
|
|
if (!menubar->is_dropped)
|
|
return FALSE;
|
|
|
|
menu = MENU (g_list_nth_data (menubar->menu, menubar->selected));
|
|
left_x = menu->start_x;
|
|
right_x = left_x + menu->max_entry_len + 3;
|
|
if (right_x > w->cols)
|
|
{
|
|
left_x = w->cols - (menu->max_entry_len + 3);
|
|
right_x = w->cols;
|
|
}
|
|
|
|
bottom_y = g_list_length (menu->entries) + 2; /* skip bar and top frame */
|
|
|
|
return (x >= left_x && x < right_x && y > 1 && y < bottom_y);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static void
|
|
menubar_change_selected_item (WMenuBar * menubar, int y)
|
|
{
|
|
menu_t *menu;
|
|
menu_entry_t *entry;
|
|
|
|
y -= 2; /* skip bar and top frame */
|
|
menu = MENU (g_list_nth_data (menubar->menu, menubar->selected));
|
|
entry = MENUENTRY (g_list_nth_data (menu->entries, y));
|
|
|
|
if (entry != NULL && entry->command != CK_IgnoreKey)
|
|
{
|
|
menubar_paint_idx (menubar, menu->selected, MENU_ENTRY_COLOR);
|
|
menu->selected = y;
|
|
menubar_paint_idx (menubar, menu->selected, MENU_SELECTED_COLOR);
|
|
}
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
static void
|
|
menubar_mouse_callback (Widget * w, mouse_msg_t msg, mouse_event_t * event)
|
|
{
|
|
static gboolean was_drag = FALSE;
|
|
|
|
WMenuBar *menubar = MENUBAR (w);
|
|
gboolean mouse_on_drop;
|
|
|
|
mouse_on_drop = menubar_mouse_on_menu (menubar, event->y, event->x);
|
|
|
|
switch (msg)
|
|
{
|
|
case MSG_MOUSE_DOWN:
|
|
was_drag = FALSE;
|
|
|
|
if (event->y == 0)
|
|
{
|
|
/* events on menubar */
|
|
unsigned int selected;
|
|
|
|
selected = menubar_get_menu_by_x_coord (menubar, event->x);
|
|
menubar_activate (menubar, TRUE, selected);
|
|
menubar_remove (menubar); /* if already shown */
|
|
menubar_drop (menubar, selected);
|
|
}
|
|
else if (mouse_on_drop)
|
|
menubar_change_selected_item (menubar, event->y);
|
|
else
|
|
{
|
|
/* mouse click outside menubar or dropdown -- close menu */
|
|
menubar_finish (menubar);
|
|
|
|
/*
|
|
* @FIXME.
|
|
*
|
|
* Unless we clear the 'capture' flag, we'll receive MSG_MOUSE_DRAG
|
|
* events belonging to this click (in case the user drags the mouse,
|
|
* of course).
|
|
*
|
|
* For the time being, we mark this with FIXME as this flag should
|
|
* preferably be regarded as "implementation detail" and not be
|
|
* touched by us. We should think of some other way of communicating
|
|
* this to the system.
|
|
*/
|
|
w->mouse.capture = FALSE;
|
|
}
|
|
break;
|
|
|
|
case MSG_MOUSE_UP:
|
|
if (was_drag && mouse_on_drop)
|
|
menubar_execute (menubar);
|
|
was_drag = FALSE;
|
|
break;
|
|
|
|
case MSG_MOUSE_CLICK:
|
|
was_drag = FALSE;
|
|
|
|
if ((event->buttons & GPM_B_MIDDLE) != 0 && event->y > 0 && menubar->is_dropped)
|
|
{
|
|
/* middle click -- everywhere */
|
|
menubar_execute (menubar);
|
|
}
|
|
else if (mouse_on_drop)
|
|
menubar_execute (menubar);
|
|
else if (event->y > 0)
|
|
/* releasing the mouse button outside the menu -- close menu */
|
|
menubar_finish (menubar);
|
|
break;
|
|
|
|
case MSG_MOUSE_DRAG:
|
|
if (event->y == 0)
|
|
{
|
|
menubar_remove (menubar);
|
|
menubar_drop (menubar, menubar_get_menu_by_x_coord (menubar, event->x));
|
|
}
|
|
else if (mouse_on_drop)
|
|
menubar_change_selected_item (menubar, event->y);
|
|
|
|
was_drag = TRUE;
|
|
break;
|
|
|
|
case MSG_MOUSE_SCROLL_UP:
|
|
case MSG_MOUSE_SCROLL_DOWN:
|
|
was_drag = FALSE;
|
|
|
|
if (widget_get_state (w, WST_FOCUSED))
|
|
{
|
|
if (event->y == 0)
|
|
{
|
|
/* menubar: left/right */
|
|
if (msg == MSG_MOUSE_SCROLL_UP)
|
|
menubar_left (menubar);
|
|
else
|
|
menubar_right (menubar);
|
|
}
|
|
else if (mouse_on_drop)
|
|
{
|
|
/* drop-down menu: up/down */
|
|
if (msg == MSG_MOUSE_SCROLL_UP)
|
|
menubar_up (menubar);
|
|
else
|
|
menubar_down (menubar);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
was_drag = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
/*** public functions ****************************************************************************/
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
menu_entry_t *
|
|
menu_entry_create (const char *name, long command)
|
|
{
|
|
menu_entry_t *entry;
|
|
|
|
entry = g_new (menu_entry_t, 1);
|
|
entry->first_letter = ' ';
|
|
entry->text = hotkey_new (name);
|
|
entry->command = command;
|
|
entry->shortcut = NULL;
|
|
|
|
return entry;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
menu_entry_free (menu_entry_t * entry)
|
|
{
|
|
if (entry != NULL)
|
|
{
|
|
hotkey_free (entry->text);
|
|
g_free (entry->shortcut);
|
|
g_free (entry);
|
|
}
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
menu_t *
|
|
create_menu (const char *name, GList * entries, const char *help_node)
|
|
{
|
|
menu_t *menu;
|
|
|
|
menu = g_new (menu_t, 1);
|
|
menu->start_x = 0;
|
|
menu->text = hotkey_new (name);
|
|
menu->entries = entries;
|
|
menu->max_entry_len = 1;
|
|
menu->max_hotkey_len = 0;
|
|
menu->selected = 0;
|
|
menu->help_node = g_strdup (help_node);
|
|
|
|
return menu;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
menu_set_name (menu_t * menu, const char *name)
|
|
{
|
|
hotkey_free (menu->text);
|
|
menu->text = hotkey_new (name);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
destroy_menu (menu_t * menu)
|
|
{
|
|
hotkey_free (menu->text);
|
|
g_list_free_full (menu->entries, (GDestroyNotify) menu_entry_free);
|
|
g_free (menu->help_node);
|
|
g_free (menu);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
WMenuBar *
|
|
menubar_new (GList * menu)
|
|
{
|
|
WRect r = { 0, 0, 1, COLS };
|
|
WMenuBar *menubar;
|
|
Widget *w;
|
|
|
|
menubar = g_new0 (WMenuBar, 1);
|
|
w = WIDGET (menubar);
|
|
widget_init (w, &r, menubar_callback, menubar_mouse_callback);
|
|
w->pos_flags = WPOS_KEEP_HORZ | WPOS_KEEP_TOP;
|
|
w->options |= WOP_TOP_SELECT;
|
|
w->keymap = menu_map;
|
|
menubar_set_menu (menubar, menu);
|
|
|
|
return menubar;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
menubar_set_menu (WMenuBar * menubar, GList * menu)
|
|
{
|
|
/* delete previous menu */
|
|
menubar_free_menu (menubar);
|
|
/* add new menu */
|
|
menubar->is_dropped = FALSE;
|
|
menubar->menu = menu;
|
|
menubar->selected = 0;
|
|
menubar_arrange (menubar);
|
|
widget_set_state (WIDGET (menubar), WST_FOCUSED, FALSE);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
menubar_add_menu (WMenuBar * menubar, menu_t * menu)
|
|
{
|
|
if (menu != NULL)
|
|
{
|
|
menu_arrange (menu, DIALOG (WIDGET (menubar)->owner)->get_shortcut);
|
|
menubar->menu = g_list_append (menubar->menu, menu);
|
|
}
|
|
|
|
menubar_arrange (menubar);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
/**
|
|
* Properly space menubar items. Should be called when menubar is created
|
|
* and also when widget width is changed (i.e. upon xterm resize).
|
|
*/
|
|
|
|
void
|
|
menubar_arrange (WMenuBar * menubar)
|
|
{
|
|
int start_x = 1;
|
|
GList *i;
|
|
int gap;
|
|
|
|
if (menubar->menu == NULL)
|
|
return;
|
|
|
|
gap = WIDGET (menubar)->rect.cols - 2;
|
|
|
|
/* First, calculate gap between items... */
|
|
for (i = menubar->menu; i != NULL; i = g_list_next (i))
|
|
{
|
|
menu_t *menu = MENU (i->data);
|
|
|
|
/* preserve length here, to be used below */
|
|
menu->start_x = hotkey_width (menu->text) + 2;
|
|
gap -= menu->start_x;
|
|
}
|
|
|
|
if (g_list_next (menubar->menu) == NULL)
|
|
gap = 1;
|
|
else
|
|
gap /= (g_list_length (menubar->menu) - 1);
|
|
|
|
if (gap <= 0)
|
|
{
|
|
/* We are out of luck - window is too narrow... */
|
|
gap = 1;
|
|
}
|
|
else if (gap >= 3)
|
|
gap = 3;
|
|
|
|
/* ...and now fix start positions of menubar items */
|
|
for (i = menubar->menu; i != NULL; i = g_list_next (i))
|
|
{
|
|
menu_t *menu = MENU (i->data);
|
|
int len = menu->start_x;
|
|
|
|
menu->start_x = start_x;
|
|
start_x += len + gap;
|
|
}
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
/** Find MenuBar widget in the dialog */
|
|
|
|
WMenuBar *
|
|
find_menubar (const WDialog * h)
|
|
{
|
|
return MENUBAR (widget_find_by_type (CONST_WIDGET (h), menubar_callback));
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
/**
|
|
* Activate menu bar.
|
|
*
|
|
* @param menubar menu bar object
|
|
* @param dropped whether dropdown menus should be drooped or not
|
|
* @which number of active dropdown menu
|
|
*/
|
|
void
|
|
menubar_activate (WMenuBar * menubar, gboolean dropped, int which)
|
|
{
|
|
Widget *w = WIDGET (menubar);
|
|
|
|
widget_show (w);
|
|
|
|
if (!widget_get_state (w, WST_FOCUSED))
|
|
{
|
|
widget_set_options (w, WOP_SELECTABLE, TRUE);
|
|
|
|
menubar->is_dropped = dropped;
|
|
if (which >= 0)
|
|
menubar->selected = (guint) which;
|
|
|
|
menubar->previous_widget = group_get_current_widget_id (w->owner);
|
|
|
|
/* Bring it to the top so it receives all mouse events before any other widget.
|
|
* See also comment in menubar_finish(). */
|
|
widget_select (w);
|
|
}
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|