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/*
* MOC - music on console
* Copyright (C) 2002 - 2006 Damian Pietras <daper@daper.net>
*
* 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.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "common.h"
#include "options.h"
#include "menu.h"
#include "files.h"
#include "rbtree.h"
#include "utf8.h"
/* Draw menu item on a given position from the top of the menu. */
static void draw_item (const struct menu *menu, const struct menu_item *mi,
const int pos, const int item_info_pos, int title_space,
const int number_space, const int draw_selected)
{
int title_width, queue_pos_len = 0;
int ix, x;
int y ATTR_UNUSED; /* OpenBSD flags this as unused. */
char buf[32];
assert (menu != NULL);
assert (mi != NULL);
assert (pos >= 0);
assert (item_info_pos > menu->posx
|| (!menu->show_time && !menu->show_format));
assert (title_space > 0);
assert (number_space == 0 || number_space >= 2);
wmove (menu->win, pos, menu->posx);
if (number_space) {
if (draw_selected && mi == menu->selected && mi == menu->marked)
wattrset (menu->win, menu->info_attr_sel_marked);
else if (draw_selected && mi == menu->selected)
wattrset (menu->win, menu->info_attr_sel);
else if (mi == menu->marked)
wattrset (menu->win, menu->info_attr_marked);
else
wattrset (menu->win, menu->info_attr_normal);
xwprintw (menu->win, "%*d ", number_space - 1, mi->num + 1);
}
/* Set attributes */
if (draw_selected && mi == menu->selected && mi == menu->marked)
wattrset (menu->win, mi->attr_sel_marked);
else if (draw_selected && mi == menu->selected)
wattrset (menu->win, mi->attr_sel);
else if (mi == menu->marked)
wattrset (menu->win, mi->attr_marked);
else
wattrset (menu->win, mi->attr_normal);
/* Compute the length of the queue position if nonzero */
if (mi->queue_pos) {
sprintf (buf, "%d", mi->queue_pos);
queue_pos_len = strlen(buf) + 2;
title_space -= queue_pos_len;
}
title_width = strwidth (mi->title);
getyx (menu->win, y, x);
if (title_width <= title_space || mi->align == MENU_ALIGN_LEFT)
xwaddnstr (menu->win, mi->title, title_space);
else {
char *ptr;
ptr = xstrtail (mi->title, title_space);
xwaddstr (menu->win, ptr);
free (ptr);
}
/* Fill the remainder of the title field with spaces. */
if (mi == menu->selected) {
getyx (menu->win, y, ix);
while (ix < x + title_space) {
waddch (menu->win, ' ');
ix += 1;
}
}
/* Description. */
if (draw_selected && mi == menu->selected && mi == menu->marked)
wattrset (menu->win, menu->info_attr_sel_marked);
else if (draw_selected && mi == menu->selected)
wattrset (menu->win, menu->info_attr_sel);
else if (mi == menu->marked)
wattrset (menu->win, menu->info_attr_marked);
else
wattrset (menu->win, menu->info_attr_normal);
wmove (menu->win, pos, item_info_pos - queue_pos_len);
/* Position in queue. */
if (mi->queue_pos) {
xwaddstr (menu->win, "[");
xwaddstr (menu->win, buf);
xwaddstr (menu->win, "]");
}
if (menu->show_time && menu->show_format
&& (*mi->time || *mi->format))
xwprintw (menu->win, "[%5s|%3s]", mi->time, mi->format);
else if (menu->show_time && mi->time[0])
xwprintw (menu->win, "[%5s]", mi->time);
else if (menu->show_format && mi->format[0])
xwprintw (menu->win, "[%3s]", mi->format);
}
void menu_draw (const struct menu *menu, const int active)
{
struct menu_item *mi;
int title_width;
int info_pos;
int number_space = 0;
assert (menu != NULL);
if (menu->number_items) {
int count = menu->nitems / 10;
number_space = 2; /* begin from 1 digit and a space char */
while (count) {
count /= 10;
number_space++;
}
}
else
number_space = 0;
if (menu->show_time || menu->show_format) {
title_width = menu->width - 2; /* -2 for brackets */
if (menu->show_time)
title_width -= 5; /* 00:00 */
if (menu->show_format)
title_width -= 3; /* MP3 */
if (menu->show_time && menu->show_format)
title_width--; /* for | */
info_pos = title_width;
}
else {
title_width = menu->width;
info_pos = title_width;
}
title_width -= number_space;
for (mi = menu->top; mi && mi->num - menu->top->num < menu->height;
mi = mi->next)
draw_item (menu, mi, mi->num - menu->top->num + menu->posy,
menu->posx + info_pos, title_width,
number_space, active);
}
/* Move the cursor to the selected file. */
void menu_set_cursor (const struct menu *m)
{
assert (m != NULL);
if (m->selected)
wmove (m->win, m->selected->num - m->top->num + m->posy, m->posx);
}
static int rb_compare (const void *a, const void *b,
const void *unused ATTR_UNUSED)
{
struct menu_item *mia = (struct menu_item *)a;
struct menu_item *mib = (struct menu_item *)b;
return strcmp (mia->file, mib->file);
}
static int rb_fname_compare (const void *key, const void *data,
const void *unused ATTR_UNUSED)
{
const char *fname = (const char *)key;
const struct menu_item *mi = (const struct menu_item *)data;
return strcmp (fname, mi->file);
}
/* menu_items must be malloc()ed memory! */
struct menu *menu_new (WINDOW *win, const int posx, const int posy,
const int width, const int height)
{
struct menu *menu;
assert (win != NULL);
assert (posx >= 0);
assert (posy >= 0);
assert (width > 0);
assert (height > 0);
menu = (struct menu *)xmalloc (sizeof(struct menu));
menu->win = win;
menu->items = NULL;
menu->nitems = 0;
menu->top = NULL;
menu->last = NULL;
menu->selected = NULL;
menu->posx = posx;
menu->posy = posy;
menu->width = width;
menu->height = height;
menu->marked = NULL;
menu->show_time = 0;
menu->show_format = false;
menu->info_attr_normal = A_NORMAL;
menu->info_attr_sel = A_NORMAL;
menu->info_attr_marked = A_NORMAL;
menu->info_attr_sel_marked = A_NORMAL;
menu->number_items = 0;
menu->search_tree = rb_tree_new (rb_compare, rb_fname_compare, NULL);
return menu;
}
struct menu_item *menu_add (struct menu *menu, const char *title,
const enum file_type type, const char *file)
{
struct menu_item *mi;
assert (menu != NULL);
assert (title != NULL);
mi = (struct menu_item *)xmalloc (sizeof(struct menu_item));
mi->title = xstrdup (title);
mi->type = type;
mi->file = xstrdup (file);
mi->num = menu->nitems;
mi->attr_normal = A_NORMAL;
mi->attr_sel = A_NORMAL;
mi->attr_marked = A_NORMAL;
mi->attr_sel_marked = A_NORMAL;
mi->align = MENU_ALIGN_LEFT;
mi->time[0] = 0;
mi->format[0] = 0;
mi->queue_pos = 0;
mi->next = NULL;
mi->prev = menu->last;
if (menu->last)
menu->last->next = mi;
if (!menu->items)
menu->items = mi;
if (!menu->top)
menu->top = menu->items;
if (!menu->selected)
menu->selected = menu->items;
if (file)
rb_insert (menu->search_tree, (void *)mi);
menu->last = mi;
menu->nitems++;
return mi;
}
static struct menu_item *menu_add_from_item (struct menu *menu,
const struct menu_item *mi)
{
struct menu_item *new;
assert (menu != NULL);
assert (mi != NULL);
new = menu_add (menu, mi->title, mi->type, mi->file);
new->attr_normal = mi->attr_normal;
new->attr_sel = mi->attr_sel;
new->attr_marked = mi->attr_marked;
new->attr_sel_marked = mi->attr_sel_marked;
strncpy(new->time, mi->time, FILE_TIME_STR_SZ);
strncpy(new->format, mi->format, FILE_FORMAT_SZ);
return new;
}
static struct menu_item *get_item_relative (struct menu_item *mi,
int to_move)
{
assert (mi != NULL);
while (to_move) {
struct menu_item *prev = mi;
if (to_move > 0) {
mi = mi->next;
to_move--;
}
else {
mi = mi->prev;
to_move++;
}
if (!mi) {
mi = prev;
break;
}
}
return mi;
}
void menu_update_size (struct menu *menu, const int posx, const int posy,
const int width, const int height)
{
assert (menu != NULL);
assert (posx >= 0);
assert (posy >= 0);
assert (width > 0);
assert (height > 0);
menu->posx = posx;
menu->posy = posy;
menu->width = width;
menu->height = height;
if (menu->selected && menu->top
&& menu->selected->num >= menu->top->num + menu->height)
menu->selected = get_item_relative (menu->top,
menu->height - 1);
}
static void menu_item_free (struct menu_item *mi)
{
assert (mi != NULL);
assert (mi->title != NULL);
free (mi->title);
if (mi->file)
free (mi->file);
free (mi);
}
void menu_free (struct menu *menu)
{
struct menu_item *mi;
assert (menu != NULL);
mi = menu->items;
while (mi) {
struct menu_item *next = mi->next;
menu_item_free (mi);
mi = next;
}
rb_tree_free (menu->search_tree);
free (menu);
}
void menu_driver (struct menu *menu, const enum menu_request req)
{
assert (menu != NULL);
if (menu->nitems == 0)
return;
if (req == REQ_DOWN && menu->selected->next) {
menu->selected = menu->selected->next;
if (menu->selected->num >= menu->top->num + menu->height) {
menu->top = get_item_relative (menu->selected,
-menu->height / 2);
if (menu->top->num > menu->nitems - menu->height)
menu->top = get_item_relative (menu->last,
-menu->height + 1);
}
}
else if (req == REQ_UP && menu->selected->prev) {
menu->selected = menu->selected->prev;
if (menu->top->num > menu->selected->num)
menu->top = get_item_relative (menu->selected,
-menu->height / 2);
}
else if (req == REQ_PGDOWN && menu->selected->num < menu->nitems - 1) {
if (menu->selected->num + menu->height - 1 < menu->nitems - 1) {
menu->selected = get_item_relative (menu->selected,
menu->height - 1);
menu->top = get_item_relative (menu->top,
menu->height - 1);
if (menu->top->num > menu->nitems - menu->height)
menu->top = get_item_relative (menu->last,
-menu->height + 1);
}
else {
menu->selected = menu->last;
menu->top = get_item_relative (menu->last,
-menu->height + 1);
}
}
else if (req == REQ_PGUP && menu->selected->prev) {
if (menu->selected->num - menu->height + 1 > 0) {
menu->selected = get_item_relative (menu->selected,
-menu->height + 1);
menu->top = get_item_relative (menu->top,
-menu->height + 1);
}
else {
menu->selected = menu->items;
menu->top = menu->items;
}
}
else if (req == REQ_TOP) {
menu->selected = menu->items;
menu->top = menu->items;
}
else if (req == REQ_BOTTOM) {
menu->selected = menu->last;
menu->top = get_item_relative (menu->selected,
-menu->height + 1);
}
}
/* Return the index of the currently selected item. */
struct menu_item *menu_curritem (struct menu *menu)
{
assert (menu != NULL);
return menu->selected;
}
static void make_item_visible (struct menu *menu, struct menu_item *mi)
{
assert (menu != NULL);
assert (mi != NULL);
if (mi->num < menu->top->num || mi->num >= menu->top->num + menu->height) {
menu->top = get_item_relative(mi, -menu->height/2);
if (menu->top->num > menu->nitems - menu->height)
menu->top = get_item_relative (menu->last,
-menu->height + 1);
}
if (menu->selected) {
if (menu->selected->num < menu->top->num ||
menu->selected->num >= menu->top->num + menu->height)
menu->selected = mi;
}
}
/* Make this item selected */
static void menu_setcurritem (struct menu *menu, struct menu_item *mi)
{
assert (menu != NULL);
assert (mi != NULL);
menu->selected = mi;
make_item_visible (menu, mi);
}
/* Make the item with this title selected. */
void menu_setcurritem_title (struct menu *menu, const char *title)
{
struct menu_item *mi;
/* Find it */
for (mi = menu->top; mi; mi = mi->next)
if (!strcmp(mi->title, title))
break;
if (mi)
menu_setcurritem (menu, mi);
}
static struct menu_item *menu_find_by_position (struct menu *menu,
const int num)
{
struct menu_item *mi;
assert (menu != NULL);
mi = menu->top;
while (mi && mi->num != num)
mi = mi->next;
return mi;
}
void menu_set_state (struct menu *menu, const struct menu_state *st)
{
assert (menu != NULL);
if (!(menu->selected = menu_find_by_position(menu, st->selected_item)))
menu->selected = menu->last;
if (!(menu->top = menu_find_by_position(menu, st->top_item)))
menu->top = get_item_relative (menu->last, menu->height + 1);
}
void menu_set_items_numbering (struct menu *menu, const int number)
{
assert (menu != NULL);
menu->number_items = number;
}
void menu_get_state (const struct menu *menu, struct menu_state *st)
{
assert (menu != NULL);
st->top_item = menu->top ? menu->top->num : -1;
st->selected_item = menu->selected ? menu->selected->num : -1;
}
void menu_unmark_item (struct menu *menu)
{
assert (menu != NULL);
menu->marked = NULL;
}
/* Make a new menu from elements matching pattern. */
struct menu *menu_filter_pattern (const struct menu *menu, const char *pattern)
{
struct menu *new;
const struct menu_item *mi;
assert (menu != NULL);
assert (pattern != NULL);
new = menu_new (menu->win, menu->posx, menu->posy, menu->width,
menu->height);
menu_set_show_time (new, menu->show_time);
menu_set_show_format (new, menu->show_format);
menu_set_info_attr_normal (new, menu->info_attr_normal);
menu_set_info_attr_sel (new, menu->info_attr_sel);
menu_set_info_attr_marked (new, menu->info_attr_marked);
menu_set_info_attr_sel_marked (new, menu->info_attr_sel_marked);
for (mi = menu->items; mi; mi = mi->next)
if (strcasestr(mi->title, pattern))
menu_add_from_item (new, mi);
if (menu->marked)
menu_mark_item (new, menu->marked->file);
return new;
}
void menu_item_set_attr_normal (struct menu_item *mi, const int attr)
{
assert (mi != NULL);
mi->attr_normal = attr;
}
void menu_item_set_attr_sel (struct menu_item *mi, const int attr)
{
assert (mi != NULL);
mi->attr_sel = attr;
}
void menu_item_set_attr_sel_marked (struct menu_item *mi, const int attr)
{
assert (mi != NULL);
mi->attr_sel_marked = attr;
}
void menu_item_set_attr_marked (struct menu_item *mi, const int attr)
{
assert (mi != NULL);
mi->attr_marked = attr;
}
void menu_item_set_time (struct menu_item *mi, const char *time)
{
assert (mi != NULL);
mi->time[sizeof(mi->time)-1] = 0;
strncpy (mi->time, time, sizeof(mi->time));
assert (mi->time[sizeof(mi->time)-1] == 0);
}
void menu_item_set_format (struct menu_item *mi, const char *format)
{
assert (mi != NULL);
assert (format != NULL);
mi->format[sizeof(mi->format)-1] = 0;
strncpy (mi->format, format,
sizeof(mi->format));
assert (mi->format[sizeof(mi->format)-1]
== 0);
}
void menu_item_set_queue_pos (struct menu_item *mi, const int pos)
{
assert (mi != NULL);
mi->queue_pos = pos;
}
void menu_set_show_time (struct menu *menu, const int t)
{
assert (menu != NULL);
menu->show_time = t;
}
void menu_set_show_format (struct menu *menu, const bool t)
{
assert (menu != NULL);
menu->show_format = t;
}
void menu_set_info_attr_normal (struct menu *menu, const int attr)
{
assert (menu != NULL);
menu->info_attr_normal = attr;
}
void menu_set_info_attr_sel (struct menu *menu, const int attr)
{
assert (menu != NULL);
menu->info_attr_sel = attr;
}
void menu_set_info_attr_marked (struct menu *menu, const int attr)
{
assert (menu != NULL);
menu->info_attr_marked = attr;
}
void menu_set_info_attr_sel_marked (struct menu *menu, const int attr)
{
assert (menu != NULL);
menu->info_attr_sel_marked = attr;
}
enum file_type menu_item_get_type (const struct menu_item *mi)
{
assert (mi != NULL);
return mi->type;
}
char *menu_item_get_file (const struct menu_item *mi)
{
assert (mi != NULL);
return xstrdup (mi->file);
}
void menu_item_set_title (struct menu_item *mi, const char *title)
{
assert (mi != NULL);
if (mi->title)
free (mi->title);
mi->title = xstrdup (title);
}
int menu_nitems (const struct menu *menu)
{
assert (menu != NULL);
return menu->nitems;
}
struct menu_item *menu_find (struct menu *menu, const char *fname)
{
struct rb_node *x;
assert (menu != NULL);
assert (fname != NULL);
x = rb_search (menu->search_tree, fname);
if (rb_is_null(x))
return NULL;
return (struct menu_item *)rb_get_data (x);
}
void menu_mark_item (struct menu *menu, const char *file)
{
struct menu_item *item;
assert (menu != NULL);
assert (file != NULL);
item = menu_find (menu, file);
if (item)
menu->marked = item;
}
static void menu_renumber_items (struct menu *menu)
{
int i = 0;
struct menu_item *mi;
assert (menu != NULL);
for (mi = menu->items; mi; mi = mi->next)
mi->num = i++;
assert (i == menu->nitems);
}
static void menu_delete (struct menu *menu, struct menu_item *mi)
{
assert (menu != NULL);
assert (mi != NULL);
if (mi->prev)
mi->prev->next = mi->next;
if (mi->next)
mi->next->prev = mi->prev;
if (menu->items == mi)
menu->items = mi->next;
if (menu->last == mi)
menu->last = mi->prev;
if (menu->marked == mi)
menu->marked = NULL;
if (menu->selected == mi)
menu->selected = mi->next ? mi->next : mi->prev;
if (menu->top == mi)
menu->top = mi->next ? mi->next : mi->prev;
if (mi->file)
rb_delete (menu->search_tree, mi->file);
menu->nitems--;
menu_renumber_items (menu);
menu_item_free (mi);
}
void menu_del_item (struct menu *menu, const char *fname)
{
struct menu_item *mi;
assert (menu != NULL);
assert (fname != NULL);
mi = menu_find (menu, fname);
assert (mi != NULL);
menu_delete (menu, mi);
}
void menu_item_set_align (struct menu_item *mi, const enum menu_align align)
{
assert (mi != NULL);
mi->align = align;
}
void menu_setcurritem_file (struct menu *menu, const char *file)
{
struct menu_item *mi;
assert (menu != NULL);
assert (file != NULL);
mi = menu_find (menu, file);
if (mi)
menu_setcurritem (menu, mi);
}
/* Return non-zero value if the item in in the visible part of the menu. */
int menu_is_visible (const struct menu *menu, const struct menu_item *mi)
{
assert (menu != NULL);
assert (mi != NULL);
if (mi->num >= menu->top->num
&& mi->num < menu->top->num + menu->height)
return 1;
return 0;
}
static void menu_items_swap (struct menu *menu, struct menu_item *mi1,
struct menu_item *mi2)
{
int t;
assert (menu != NULL);
assert (mi1 != NULL);
assert (mi2 != NULL);
assert (mi1 != mi2);
/* if they are next to each other, change the pointers so that mi2
* is the second one */
if (mi2->next == mi1) {
struct menu_item *i = mi1;
mi1 = mi2;
mi2 = i;
}
if (mi1->next == mi2) {
if (mi2->next)
mi2->next->prev = mi1;
if (mi1->prev)
mi1->prev->next = mi2;
mi1->next = mi2->next;
mi2->prev = mi1->prev;
mi1->prev = mi2;
mi2->next = mi1;
}
else {
if (mi2->next)
mi2->next->prev = mi1;
if (mi2->prev)
mi2->prev->next = mi1;
mi2->next = mi1->next;
mi2->prev = mi1->prev;
if (mi1->next)
mi1->next->prev = mi2;
if (mi1->prev)
mi1->prev->next = mi2;
mi1->next = mi2->next;
mi1->prev = mi2->prev;
}
t = mi1->num;
mi1->num = mi2->num;
mi2->num = t;
if (menu->top == mi1)
menu->top = mi2;
else if (menu->top == mi2)
menu->top = mi1;
if (menu->last == mi1)
menu->last = mi2;
else if (menu->last == mi2)
menu->last = mi1;
if (menu->items == mi1)
menu->items = mi2;
else if (menu->items == mi2)
menu->items = mi1;
}
void menu_swap_items (struct menu *menu, const char *file1, const char *file2)
{
struct menu_item *mi1, *mi2;
assert (menu != NULL);
assert (file1 != NULL);
assert (file2 != NULL);
if ((mi1 = menu_find(menu, file1)) && (mi2 = menu_find(menu, file2))
&& mi1 != mi2) {
menu_items_swap (menu, mi1, mi2);
/* make sure that the selected item is visible */
menu_setcurritem (menu, menu->selected);
}
}
/* Make sure that this file is visible in the menu. */
void menu_make_visible (struct menu *menu, const char *file)
{
struct menu_item *mi;
assert (menu != NULL);
assert (file != NULL);
if ((mi = menu_find(menu, file)))
make_item_visible (menu, mi);
}
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