2acc0ac542
later. We still need to hunt down snippets used that are not. 1324 modified files... http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
255 lines
10 KiB
C
255 lines
10 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2005 by Kevin Ferrare
|
|
*
|
|
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef _GUI_LIST_H_
|
|
#define _GUI_LIST_H_
|
|
|
|
#include "config.h"
|
|
#include "icon.h"
|
|
#include "screen_access.h"
|
|
|
|
#define SCROLLBAR_WIDTH 6
|
|
|
|
enum list_wrap {
|
|
LIST_WRAP_ON = 0,
|
|
LIST_WRAP_OFF,
|
|
LIST_WRAP_UNLESS_HELD,
|
|
};
|
|
|
|
/*
|
|
* The gui_list is based on callback functions, if you want the list
|
|
* to display something you have to provide it a function that
|
|
* tells it what to display.
|
|
* There are three callback function :
|
|
* one to get the text, one to get the icon and one to get the color
|
|
*/
|
|
|
|
/*
|
|
* Icon callback
|
|
* - selected_item : an integer that tells the number of the item to display
|
|
* - data : a void pointer to the data you gave to the list when you
|
|
* initialized it
|
|
* Returns a pointer to the icon, the value inside it is used to display the
|
|
* icon after the function returns.
|
|
* Note : we use the ICON type because the real type depends of the plateform
|
|
*/
|
|
typedef enum themable_icons list_get_icon(int selected_item, void * data);
|
|
/*
|
|
* Text callback
|
|
* - selected_item : an integer that tells the number of the item to display
|
|
* - data : a void pointer to the data you gave to the list when you
|
|
* initialized it
|
|
* - buffer : a buffer to put the resulting text on it
|
|
* (The content of the buffer may not be used by the list, we use
|
|
* the return value of the function in all cases to avoid filling
|
|
* a buffer when it's not necessary)
|
|
* - buffer_len : length of the buffer
|
|
* Returns a pointer to a string that contains the text to display
|
|
*/
|
|
typedef char * list_get_name(int selected_item, void * data,
|
|
char * buffer, size_t buffer_len);
|
|
/*
|
|
* Voice callback
|
|
* - selected_item : an integer that tells the number of the item to speak
|
|
* - data : a void pointer to the data you gave to the list when you
|
|
* initialized it
|
|
* Returns an integer, 0 means success, ignored really...
|
|
*/
|
|
typedef int list_speak_item(int selected_item, void * data);
|
|
#ifdef HAVE_LCD_COLOR
|
|
/*
|
|
* Color callback
|
|
* - selected_item : an integer that tells the number of the item to display
|
|
* - data : a void pointer to the data you gave to the list when you
|
|
* initialized it
|
|
* Returns an int with the lower 16 bits representing the color to display the
|
|
* selected item, negative value for default coloring.
|
|
*/
|
|
typedef int list_get_color(int selected_item, void * data);
|
|
#endif
|
|
|
|
struct gui_synclist
|
|
{
|
|
/* defines wether the list should stop when reaching the top/bottom
|
|
* or should continue (by going to bottom/top) */
|
|
bool limit_scroll;
|
|
/* wether the text of the whole items of the list have to be
|
|
* scrolled or only for the selected item */
|
|
bool scroll_all;
|
|
|
|
int nb_items;
|
|
int selected_item;
|
|
int start_item[NB_SCREENS]; /* the item that is displayed at the top of the screen */
|
|
/* the number of lines that are selected at the same time */
|
|
int selected_size;
|
|
/* These are used to calculate how much of the screen content we need
|
|
to redraw. */
|
|
int last_displayed_selected_item;
|
|
int last_displayed_start_item[NB_SCREENS];
|
|
#ifdef HAVE_LCD_BITMAP
|
|
int offset_position[NB_SCREENS]; /* the list's screen scroll placement in pixels */
|
|
#endif
|
|
/* Cache the width of the title string in pixels/characters */
|
|
int title_width;
|
|
long scheduled_talk_tick, last_talked_tick;
|
|
|
|
list_get_icon *callback_get_item_icon;
|
|
list_get_name *callback_get_item_name;
|
|
list_speak_item *callback_speak_item;
|
|
|
|
/* The data that will be passed to the callback function YOU implement */
|
|
void * data;
|
|
/* The optional title, set to NULL for none */
|
|
char * title;
|
|
/* Optional title icon */
|
|
enum themable_icons title_icon;
|
|
bool show_selection_marker; /* set to true by default */
|
|
|
|
#ifdef HAVE_LCD_COLOR
|
|
int title_color;
|
|
list_get_color *callback_get_item_color;
|
|
#endif
|
|
struct viewport *parent[NB_SCREENS];
|
|
};
|
|
|
|
|
|
#ifdef HAVE_LCD_BITMAP
|
|
/* parse global setting to static int */
|
|
extern void gui_list_screen_scroll_step(int ofs);
|
|
|
|
/* parse global setting to static bool */
|
|
extern void gui_list_screen_scroll_out_of_view(bool enable);
|
|
#endif /* HAVE_LCD_BITMAP */
|
|
|
|
void list_init_viewports(struct gui_synclist * lists);
|
|
|
|
extern void gui_synclist_init(
|
|
struct gui_synclist * lists,
|
|
list_get_name callback_get_item_name,
|
|
void * data,
|
|
bool scroll_all,
|
|
int selected_size,
|
|
struct viewport parent[NB_SCREENS] /* NOTE: new screens should NOT set this to NULL */
|
|
);
|
|
extern void gui_synclist_set_nb_items(struct gui_synclist * lists, int nb_items);
|
|
extern void gui_synclist_set_icon_callback(struct gui_synclist * lists, list_get_icon icon_callback);
|
|
extern void gui_synclist_set_voice_callback(struct gui_synclist * lists, list_speak_item voice_callback);
|
|
#ifdef HAVE_LCD_COLOR
|
|
extern void gui_synclist_set_color_callback(struct gui_synclist * lists, list_get_color color_callback);
|
|
#endif
|
|
extern void gui_synclist_speak_item(struct gui_synclist * lists);
|
|
extern int gui_synclist_get_nb_items(struct gui_synclist * lists);
|
|
|
|
extern int gui_synclist_get_sel_pos(struct gui_synclist * lists);
|
|
|
|
extern void gui_synclist_draw(struct gui_synclist * lists);
|
|
extern void gui_synclist_select_item(struct gui_synclist * lists,
|
|
int item_number);
|
|
extern void gui_synclist_add_item(struct gui_synclist * lists);
|
|
extern void gui_synclist_del_item(struct gui_synclist * lists);
|
|
extern void gui_synclist_limit_scroll(struct gui_synclist * lists, bool scroll);
|
|
extern void gui_synclist_flash(struct gui_synclist * lists);
|
|
extern void gui_synclist_set_title(struct gui_synclist * lists, char * title,
|
|
int icon);
|
|
extern void gui_synclist_hide_selection_marker(struct gui_synclist *lists,
|
|
bool hide);
|
|
/*
|
|
* Do the action implied by the given button,
|
|
* returns true if the action was handled.
|
|
* NOTE: *action may be changed regardless of return value
|
|
*/
|
|
extern bool gui_synclist_do_button(struct gui_synclist * lists,
|
|
unsigned *action,
|
|
enum list_wrap);
|
|
|
|
/* If the list has a pending postponed scheduled announcement, that
|
|
may become due before the next get_action tmieout. This function
|
|
adjusts the get_action timeout appropriately. */
|
|
extern int list_do_action_timeout(struct gui_synclist *lists, int timeout);
|
|
/* This one combines a get_action call (with timeout overridden by
|
|
list_do_action_timeout) with the gui_synclist_do_button call, for
|
|
convenience. */
|
|
extern bool list_do_action(int context, int timeout,
|
|
struct gui_synclist *lists, int *action,
|
|
enum list_wrap wrap);
|
|
|
|
|
|
/** Simplelist implementation.
|
|
USe this if you dont need to reimplement the list code,
|
|
and just need to show a list
|
|
**/
|
|
|
|
struct simplelist_info {
|
|
char *title; /* title to show on the list */
|
|
int count; /* number of items in the list, each item is selection_size high */
|
|
char selection_size; /* list selection size, usually 1 */
|
|
bool hide_selection;
|
|
bool scroll_all;
|
|
int timeout;
|
|
int start_selection; /* the item to select when the list is first displayed */
|
|
int (*action_callback)(int action, struct gui_synclist *lists); /* can be NULL */
|
|
/* action_callback notes:
|
|
action == the action pressed by the user
|
|
_after_ gui_synclist_do_button returns.
|
|
lists == the lists sturct so the callack can get selection and count etc. */
|
|
list_get_icon *get_icon; /* can be NULL */
|
|
list_get_name *get_name; /* NULL if you're using simplelist_addline() */
|
|
list_speak_item *get_talk; /* can be NULL to not speak */
|
|
void *callback_data; /* data for callbacks */
|
|
};
|
|
|
|
#define SIMPLELIST_MAX_LINES 32
|
|
#define SIMPLELIST_MAX_LINELENGTH 32
|
|
|
|
/** The next three functions are used if the text is mostly static.
|
|
These should be called in the action callback for the list.
|
|
**/
|
|
/* set the amount of lines shown in the list
|
|
Only needed if simplelist_info.get_name == NULL */
|
|
void simplelist_set_line_count(int lines);
|
|
/* get the current amount of lines shown */
|
|
int simplelist_get_line_count(void);
|
|
/* add/edit a line in the list.
|
|
if line_number > number of lines shown it adds the line, else it edits the line */
|
|
#define SIMPLELIST_ADD_LINE (SIMPLELIST_MAX_LINES+1)
|
|
void simplelist_addline(int line_number, const char *fmt, ...);
|
|
|
|
/* setup the info struct. members not setup in this function need to be assigned manually
|
|
members set in this function:
|
|
info.selection_size = 1;
|
|
info.hide_selection = false;
|
|
info.scroll_all = false;
|
|
info.action_callback = NULL;
|
|
info.get_icon = NULL;
|
|
info.get_name = NULL;
|
|
info.get_voice = NULL;
|
|
info.timeout = HZ/10;
|
|
info.start_selection = 0;
|
|
*/
|
|
void simplelist_info_init(struct simplelist_info *info, char* title,
|
|
int count, void* data);
|
|
|
|
/* show a list.
|
|
if list->action_callback != NULL it is called with the action ACTION_REDRAW
|
|
before the list is dislplayed for the first time */
|
|
bool simplelist_show_list(struct simplelist_info *info);
|
|
|
|
#endif /* _GUI_LIST_H_ */
|