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/*
* $Id$
*
* (c) 2004 by Kalle Wallin <kaw@linux.se>
*
* 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 "ncmpc.h"
#include "mpdclient.h"
#include "command.h"
#include "screen.h"
#include "screen_utils.h"
#include "gcc.h"
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <ncurses.h>
typedef struct {
signed char highlight;
command_t command;
const char *text;
} help_text_row_t;
static help_text_row_t help_text[] =
{
{ 1, CMD_NONE, N_("Keys - Movement") },
{ 2, CMD_NONE, NULL },
{ 0, CMD_LIST_PREVIOUS, NULL },
{ 0, CMD_LIST_NEXT, NULL },
{ 0, CMD_LIST_PREVIOUS_PAGE, NULL },
{ 0, CMD_LIST_NEXT_PAGE, NULL },
{ 0, CMD_LIST_FIRST, NULL },
{ 0, CMD_LIST_LAST, NULL },
{ 0, CMD_NONE, NULL },
{ 0, CMD_SCREEN_PREVIOUS,NULL },
{ 0, CMD_SCREEN_NEXT, NULL },
{ 0, CMD_SCREEN_HELP, NULL },
{ 0, CMD_SCREEN_PLAY, NULL },
{ 0, CMD_SCREEN_FILE, NULL },
#ifdef ENABLE_SEARCH_SCREEN
{ 0, CMD_SCREEN_SEARCH, NULL },
#endif
#ifdef ENABLE_CLOCK_SCREEN
{ 0, CMD_SCREEN_CLOCK, NULL },
#endif
#ifdef ENABLE_KEYDEF_SCREEN
{ 0, CMD_SCREEN_KEYDEF, NULL },
#endif
{ 0, CMD_NONE, NULL },
{ 0, CMD_NONE, NULL },
{ 1, CMD_NONE, N_("Keys - Global") },
{ 2, CMD_NONE, NULL },
{ 0, CMD_STOP, NULL },
{ 0, CMD_PAUSE, NULL },
{ 0, CMD_TRACK_NEXT, NULL },
{ 0, CMD_TRACK_PREVIOUS, NULL },
{ 0, CMD_SEEK_FORWARD, NULL },
{ 0, CMD_SEEK_BACKWARD, NULL },
{ 0, CMD_VOLUME_DOWN, NULL },
{ 0, CMD_VOLUME_UP, NULL },
{ 0, CMD_NONE, NULL },
{ 0, CMD_REPEAT, NULL },
{ 0, CMD_RANDOM, NULL },
{ 0, CMD_CROSSFADE, NULL },
{ 0, CMD_SHUFFLE, NULL },
{ 0, CMD_DB_UPDATE, NULL },
{ 0, CMD_NONE, NULL },
{ 0, CMD_LIST_FIND, NULL },
{ 0, CMD_LIST_RFIND, NULL },
{ 0, CMD_LIST_FIND_NEXT, NULL },
{ 0, CMD_LIST_RFIND_NEXT, NULL },
{ 0, CMD_TOGGLE_FIND_WRAP, NULL },
{ 0, CMD_NONE, NULL },
{ 0, CMD_QUIT, NULL },
{ 0, CMD_NONE, NULL },
{ 0, CMD_NONE, NULL },
{ 1, CMD_NONE, N_("Keys - Playlist screen") },
{ 2, CMD_NONE, NULL },
{ 0, CMD_PLAY, N_("Play") },
{ 0, CMD_DELETE, NULL },
{ 0, CMD_CLEAR, NULL },
{ 1, CMD_LIST_MOVE_UP, N_("Move song up") },
{ 0, CMD_LIST_MOVE_DOWN, N_("Move song down") },
{ 0, CMD_ADD, NULL },
{ 0, CMD_SAVE_PLAYLIST, NULL },
{ 0, CMD_SCREEN_UPDATE, N_("Center") },
{ 0, CMD_TOGGLE_AUTOCENTER, NULL },
{ 0, CMD_NONE, NULL },
{ 0, CMD_NONE, NULL },
{ 1, CMD_NONE, N_("Keys - Browse screen") },
{ 2, CMD_NONE, NULL },
{ 0, CMD_PLAY, N_("Enter directory/Select and play song") },
{ 0, CMD_SELECT, NULL },
{ 0, CMD_SAVE_PLAYLIST, NULL },
{ 0, CMD_DELETE, N_("Delete playlist") },
{ 0, CMD_GO_PARENT_DIRECTORY, NULL },
{ 0, CMD_GO_ROOT_DIRECTORY, NULL },
{ 0, CMD_SCREEN_UPDATE, NULL },
#ifdef ENABLE_SEARCH_SCREEN
{ 0, CMD_NONE, NULL },
{ 0, CMD_NONE, NULL },
{ 1, CMD_NONE, N_("Keys - Search screen") },
{ 2, CMD_NONE, NULL },
{ 0, CMD_SCREEN_SEARCH, N_("Search") },
{ 0, CMD_PLAY, N_("Select and play") },
{ 0, CMD_SELECT, NULL },
{ 0, CMD_SELECT_ALL, NULL },
{ 0, CMD_SEARCH_MODE, NULL },
#endif
#ifdef ENABLE_LYRICS_SCREEN
{ 0, CMD_NONE, NULL },
{ 0, CMD_NONE, NULL },
{ 1, CMD_NONE, N_("Keys - Lyrics screen") },
{ 2, CMD_NONE, NULL },
{ 0, CMD_SCREEN_LYRICS, N_("View Lyrics") },
{ 0, CMD_SELECT, N_("(Re)load lyrics") },
{ 0, CMD_INTERRUPT, N_("Interrupt retrieval") },
{ 0, CMD_LYRICS_UPDATE, N_("Explicitly download lyrics") },
{ 0, CMD_ADD, N_("Save lyrics") },
#endif
{ 0, CMD_NONE, NULL },
{-1, CMD_NONE, NULL }
};
static int help_text_rows = -1;
static list_window_t *lw = NULL;
static const char *
list_callback(unsigned idx, int *highlight, mpd_unused void *data)
{
static char buf[512];
if (help_text_rows < 0) {
help_text_rows = 0;
while (help_text[help_text_rows].highlight != -1)
help_text_rows++;
}
*highlight = 0;
if (idx < (unsigned)help_text_rows) {
*highlight = help_text[idx].highlight > 0;
if (help_text[idx].command == CMD_NONE) {
if (help_text[idx].text)
g_snprintf(buf, sizeof(buf), " %s", _(help_text[idx].text));
else if (help_text[idx].highlight == 2) {
int i;
for (i = 3; i < COLS - 3 && i < (int)sizeof(buf); i++)
buf[i] = '-';
buf[i] = '\0';
} else
g_strlcpy(buf, " ", sizeof(buf));
return buf;
}
if (help_text[idx].text)
g_snprintf(buf, sizeof(buf),
"%20s : %s ",
get_key_names(help_text[idx].command, TRUE),
_(help_text[idx].text));
else
g_snprintf(buf, sizeof(buf),
"%20s : %s ",
get_key_names(help_text[idx].command, TRUE),
get_key_description(help_text[idx].command));
return buf;
}
return NULL;
}
static void
help_init(WINDOW *w, int cols, int rows)
{
lw = list_window_init(w, cols, rows);
lw->flags = LW_HIDE_CURSOR;
}
static void
help_resize(int cols, int rows)
{
lw->cols = cols;
lw->rows = rows;
}
static void
help_exit(void)
{
list_window_free(lw);
}
static const char *
help_title(mpd_unused char *str, mpd_unused size_t size)
{
return _("Help");
}
static void
help_paint(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
{
lw->clear = 1;
list_window_paint(lw, list_callback, NULL);
wrefresh(lw->w);
}
static void
help_update(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
{
if (lw->repaint) {
list_window_paint(lw, list_callback, NULL);
wrefresh(lw->w);
lw->repaint = 0;
}
}
static int
help_cmd(screen_t *screen, mpd_unused mpdclient_t *c, command_t cmd)
{
lw->repaint=1;
lw->clear=1;
switch(cmd) {
case CMD_LIST_NEXT:
if (lw->start + lw->rows < (unsigned)help_text_rows)
lw->start++;
return 1;
case CMD_LIST_PREVIOUS:
if (lw->start > 0)
lw->start--;
return 1;
case CMD_LIST_FIRST:
lw->start = 0;
return 1;
case CMD_LIST_LAST:
if ((unsigned)help_text_rows > lw->rows)
lw->start = help_text_rows - lw->rows;
else
lw->start = 0;
return 1;
case CMD_LIST_NEXT_PAGE:
lw->start = lw->start + lw->rows;
if (lw->start + lw->rows >= (unsigned)help_text_rows) {
if ((unsigned)help_text_rows > lw->rows)
lw->start = help_text_rows - lw->rows;
else
lw->start = 0;
}
return 1;
case CMD_LIST_PREVIOUS_PAGE:
if (lw->start > lw->rows)
lw->start -= lw->rows;
else
lw->start = 0;
return 1;
default:
break;
}
lw->selected = lw->start+lw->rows;
if (screen_find(screen,
lw, help_text_rows,
cmd, list_callback, NULL)) {
/* center the row */
if (lw->selected > lw->rows / 2)
lw->start = lw->selected - lw->rows / 2;
else
lw->start = 0;
if (lw->start + lw->rows > (unsigned)help_text_rows) {
if (lw->rows < (unsigned)help_text_rows)
lw->start = help_text_rows - lw->rows;
else
lw->start = 0;
}
return 1;
}
return 0;
}
const struct screen_functions screen_help = {
.init = help_init,
.exit = help_exit,
.resize = help_resize,
.paint = help_paint,
.update = help_update,
.cmd = help_cmd,
.get_title = help_title,
};
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