rockbox/apps/plugins/text_editor.c
Aidan MacDonald d5a081cbd1 gui: Remove "enum list_wrap" from list action functions
Removing the "list_wrap" argument is actually pretty easy.
In practice, almost all lists are using LIST_WRAP_UNLESS_HELD
behavior so we can make that the default. A couple of lists
disable wraparound with LIST_WRAP_OFF; this is now achieved
by setting the list "wraparound" flag to false when setting
up the list. LIST_WRAP_ON was unused and is of questionable
value, so it has been removed entirely.

This makes list wraparound behavior a property of the list,
controlled solely by the "wraparound" flag. The result is a
simpler list API and implementation, without changing the
behavior of any lists.

Change-Id: Ib55d17519e6d92fc95ae17b84ab0aaf4233bcb5a
2022-10-05 11:22:55 -04:00

529 lines
16 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 Jonathan Gordon
*
* 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.
*
****************************************************************************/
#include "plugin.h"
#include "lib/playback_control.h"
#define MAX_LINE_LEN 2048
static unsigned char *buffer;
static size_t buffer_size;
static size_t char_count = 0;
static int line_count = 0;
static int last_action_line = 0;
static int last_char_index = 0;
static bool audio_buf = false;
static char temp_line[MAX_LINE_LEN];
static char copy_buffer[MAX_LINE_LEN];
static char filename[MAX_PATH];
static char eol[3];
static bool newfile;
#define ACTION_INSERT 0
#define ACTION_GET 1
#define ACTION_REMOVE 2
#define ACTION_UPDATE 3
#define ACTION_CONCAT 4
static char* _do_action(int action, char* str, int line);
#ifndef HAVE_ADJUSTABLE_CPU_FREQ
#define do_action _do_action
#else
static char* do_action(int action, char* str, int line)
{
char *r;
rb->cpu_boost(1);
r = _do_action(action,str,line);
rb->cpu_boost(0);
return r;
}
#endif
static char* _do_action(int action, char* str, int line)
{
int len, lennew;
int i=0,c=0;
if (line>=last_action_line)
{
i = last_action_line;
c = last_char_index;
}
while (i<line && i<line_count)
{
c += rb->strlen(&buffer[c])+1;
i++;
}
switch (action)
{
case ACTION_INSERT:
len = rb->strlen(str)+1;
if ( char_count+ len > buffer_size )
return NULL;
rb->memmove(&buffer[c+len],&buffer[c],char_count-c);
rb->strcpy(&buffer[c],str);
char_count += len;
line_count++;
break;
case ACTION_GET:
if (line > line_count)
return &buffer[0];
break;
case ACTION_REMOVE:
if (line > line_count)
return NULL;
len = rb->strlen(&buffer[c])+1;
rb->memmove(&buffer[c],&buffer[c+len],char_count-c-len);
char_count -= len;
line_count--;
break;
case ACTION_UPDATE:
if (line > line_count)
return NULL;
len = rb->strlen(&buffer[c])+1;
lennew = rb->strlen(str)+1;
if ( char_count+ lennew-len > buffer_size )
return NULL;
rb->memmove(&buffer[c+lennew],&buffer[c+len],char_count-c-len);
rb->strcpy(&buffer[c],str);
char_count += lennew-len;
break;
case ACTION_CONCAT:
if (line > line_count)
return NULL;
rb->memmove(&buffer[c-1],&buffer[c],char_count-c);
char_count--;
line_count--;
break;
default:
return NULL;
}
last_action_line = i;
last_char_index = c;
return &buffer[c];
}
static const char* list_get_name_cb(int selected_item, void* data,
char* buf, size_t buf_len)
{
(void)data;
char *b = do_action(ACTION_GET, 0, selected_item);
/* strlcpy(dst, src, siz) returns strlen(src) */
if (rb->strlcpy(buf, b, buf_len) >= buf_len)
{
rb->strcpy(&buf[buf_len-10], " ...");
}
return buf;
}
static void get_eol_string(char* fn)
{
int fd;
char t;
/* assume LF first */
rb->strcpy(eol,"\n");
if (!fn || !fn[0])
return;
fd = rb->open(fn,O_RDONLY);
if (fd<0)
return;
while (1)
{
if (!rb->read(fd,&t,1) || t == '\n')
{
break;
}
if (t == '\r')
{
if (rb->read(fd,&t,1) && t=='\n')
rb->strcpy(eol,"\r\n");
else
rb->strcpy(eol,"\r");
break;
}
}
rb->close(fd);
return;
}
static bool save_changes(int overwrite)
{
int fd;
int i;
if (newfile || !overwrite)
{
if(rb->kbd_input(filename,MAX_PATH, NULL) < 0)
{
newfile = true;
return false;
}
}
fd = rb->open(filename,O_WRONLY|O_CREAT|O_TRUNC, 0666);
if (fd < 0)
{
newfile = true;
rb->splash(HZ*2, "Changes NOT saved");
return false;
}
rb->lcd_clear_display();
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(1);
#endif
for (i=0;i<line_count;i++)
{
rb->fdprintf(fd,"%s%s", do_action(ACTION_GET, 0, i), eol);
}
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(0);
#endif
rb->close(fd);
if (newfile || !overwrite)
/* current directory may have changed */
rb->reload_directory();
newfile = false;
return true;
}
static void setup_lists(struct gui_synclist *lists, int sel)
{
rb->gui_synclist_init(lists,list_get_name_cb,0, false, 1, NULL);
rb->gui_synclist_set_icon_callback(lists,NULL);
rb->gui_synclist_set_nb_items(lists,line_count);
rb->gui_synclist_select_item(lists, sel);
rb->gui_synclist_draw(lists);
}
enum {
MENU_RET_SAVE = -1,
MENU_RET_NO_UPDATE,
MENU_RET_UPDATE,
};
static int do_item_menu(int cur_sel)
{
int ret = MENU_RET_NO_UPDATE;
MENUITEM_STRINGLIST(menu, "Line Options", NULL,
"Cut/Delete", "Copy",
"Insert Above", "Insert Below",
"Concat To Above",
"Save", "Playback Control");
switch (rb->do_menu(&menu, NULL, NULL, false))
{
case 0: /* cut */
rb->strlcpy(copy_buffer, do_action(ACTION_GET, 0, cur_sel),
MAX_LINE_LEN);
do_action(ACTION_REMOVE, 0, cur_sel);
ret = MENU_RET_UPDATE;
break;
case 1: /* copy */
rb->strlcpy(copy_buffer, do_action(ACTION_GET, 0, cur_sel),
MAX_LINE_LEN);
ret = MENU_RET_NO_UPDATE;
break;
case 2: /* insert above */
if (!rb->kbd_input(copy_buffer,MAX_LINE_LEN, NULL))
{
do_action(ACTION_INSERT,copy_buffer,cur_sel);
copy_buffer[0]='\0';
ret = MENU_RET_UPDATE;
}
break;
case 3: /* insert below */
if (!rb->kbd_input(copy_buffer,MAX_LINE_LEN, NULL))
{
do_action(ACTION_INSERT,copy_buffer,cur_sel+1);
copy_buffer[0]='\0';
ret = MENU_RET_UPDATE;
}
break;
case 4: /* cat to above */
if (cur_sel>0)
{
do_action(ACTION_CONCAT,0,cur_sel);
ret = MENU_RET_UPDATE;
}
break;
case 5: /* save */
ret = MENU_RET_SAVE;
break;
case 6: /* playback menu */
if (!audio_buf)
playback_control(NULL);
else
rb->splash(HZ, "Cannot restart playback");
ret = MENU_RET_NO_UPDATE;
break;
default:
ret = MENU_RET_NO_UPDATE;
break;
}
return ret;
}
#ifdef HAVE_LCD_COLOR
#define hex2dec(c) (((c) >= '0' && ((c) <= '9')) ? (toupper(c)) - '0' : \
(toupper(c)) - 'A' + 10)
static int my_hex_to_rgb(const char* hex, int* color)
{ int ok = 1;
int i;
int red, green, blue;
if (rb->strlen(hex) == 6) {
for (i=0; i < 6; i++ ) {
if (!isxdigit(hex[i])) {
ok=0;
break;
}
}
if (ok) {
red = (hex2dec(hex[0]) << 4) | hex2dec(hex[1]);
green = (hex2dec(hex[2]) << 4) | hex2dec(hex[3]);
blue = (hex2dec(hex[4]) << 4) | hex2dec(hex[5]);
*color = LCD_RGBPACK(red,green,blue);
return 0;
}
}
return -1;
}
#endif /* HAVE_LCD_COLOR */
/* this is the plugin entry point */
enum plugin_status plugin_start(const void* parameter)
{
int fd;
struct gui_synclist lists;
bool exit = false;
int button;
bool changed = false;
int cur_sel=0;
#ifdef HAVE_LCD_COLOR
bool edit_colors_file = false;
#endif
copy_buffer[0]='\0';
#if LCD_DEPTH > 1
rb->lcd_set_backdrop(NULL);
#endif
buffer = rb->plugin_get_buffer(&buffer_size);
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(1);
#endif
if (parameter)
{
#ifdef HAVE_LCD_COLOR
char *c = NULL;
#endif
rb->strlcpy(filename, (char*)parameter, MAX_PATH);
get_eol_string(filename);
fd = rb->open(filename,O_RDONLY);
if (fd<0)
{
rb->splashf(HZ*2, "Couldnt open file: %s", filename);
return PLUGIN_ERROR;
}
#ifdef HAVE_LCD_COLOR
c = rb->strrchr(filename, '.');
if (c && !rb->strcmp(c, ".colours"))
edit_colors_file = true;
#endif
if (buffer_size <= (size_t)rb->filesize(fd) + 0x400)
{
buffer = rb->plugin_get_audio_buffer(&buffer_size);
audio_buf = true;
}
/* read in the file */
while (rb->read_line(fd,temp_line,MAX_LINE_LEN) > 0)
{
if (!do_action(ACTION_INSERT,temp_line,line_count))
{
rb->splashf(HZ*2,"Error reading file: %s",(char*)parameter);
rb->close(fd);
return PLUGIN_ERROR;
}
}
rb->close(fd);
newfile = false;
}
else
{
rb->strcpy(filename,"/");
rb->strcpy(eol,"\n");
newfile = true;
}
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(0);
#endif
/* now dump it in the list */
setup_lists(&lists,0);
rb->lcd_update();
while (!exit)
{
rb->gui_synclist_draw(&lists);
cur_sel = rb->gui_synclist_get_sel_pos(&lists);
button = rb->get_action(CONTEXT_LIST,TIMEOUT_BLOCK);
if (rb->gui_synclist_do_button(&lists, &button))
continue;
switch (button)
{
case ACTION_STD_OK:
{
if (line_count)
rb->strlcpy(temp_line, do_action(ACTION_GET, 0, cur_sel),
MAX_LINE_LEN);
#ifdef HAVE_LCD_COLOR
if (edit_colors_file && line_count)
{
char *name = temp_line, *value = NULL;
char extension[16];
int color, old_color;
bool temp_changed = false;
MENUITEM_STRINGLIST(menu, "Edit What?", NULL,
"Extension", "Colour");
rb->settings_parseline(temp_line, &name, &value);
rb->strlcpy(extension, name, sizeof(extension));
if (value)
my_hex_to_rgb(value, &color);
else
color = 0;
switch (rb->do_menu(&menu, NULL, NULL, false))
{
case 0:
temp_changed = !rb->kbd_input(extension, sizeof(extension), NULL);
break;
case 1:
old_color = color;
rb->set_color(rb->screens[SCREEN_MAIN], name, &color, -1);
temp_changed = (value == NULL) || (color != old_color);
break;
}
if (temp_changed)
{
rb->snprintf(temp_line, MAX_LINE_LEN, "%s: %02X%02X%02X",
extension, RGB_UNPACK_RED(color),
RGB_UNPACK_GREEN(color),
RGB_UNPACK_BLUE(color));
do_action(ACTION_UPDATE, temp_line, cur_sel);
changed = true;
}
}
else
#endif
if (!rb->kbd_input(temp_line,MAX_LINE_LEN, NULL))
{
if (line_count)
do_action(ACTION_UPDATE,temp_line,cur_sel);
else
do_action(ACTION_INSERT,temp_line,cur_sel);
changed = true;
}
}
break;
case ACTION_STD_CONTEXT:
/* These targets have unintuitive STD_MENU keymaps, so we use context keymap instead;
We don't need the "delete line" action, since this can be done via the menu. */
#if (CONFIG_KEYPAD != SAMSUNG_YH92X_PAD) && (CONFIG_KEYPAD != SAMSUNG_YH820_PAD)
if (!line_count) break;
rb->strlcpy(copy_buffer, do_action(ACTION_GET, 0, cur_sel),
MAX_LINE_LEN);
do_action(ACTION_REMOVE, 0, cur_sel);
changed = true;
break;
case ACTION_STD_MENU:
#endif
{
/* do the item menu */
switch (do_item_menu(cur_sel))
{
case MENU_RET_SAVE:
if(save_changes(1))
changed = false;
break;
case MENU_RET_UPDATE:
changed = true;
break;
case MENU_RET_NO_UPDATE:
break;
}
}
break;
case ACTION_STD_CANCEL:
if (changed)
{
MENUITEM_STRINGLIST(menu, "Do What?", NULL,
"Return",
"Playback Control", "Save Changes",
"Save As...", "Save and Exit",
"Ignore Changes and Exit");
switch (rb->do_menu(&menu, NULL, NULL, false))
{
case 0:
break;
case 1:
if (!audio_buf)
playback_control(NULL);
else
rb->splash(HZ, "Cannot restart playback");
break;
case 2: //save to disk
if(save_changes(1))
changed = 0;
break;
case 3:
if(save_changes(0))
changed = 0;
break;
case 4:
if(save_changes(1))
exit=1;
break;
case 5:
exit=1;
break;
}
}
else exit=1;
break;
}
rb->gui_synclist_set_nb_items(&lists,line_count);
if(line_count > 0 && line_count <= cur_sel)
rb->gui_synclist_select_item(&lists,line_count-1);
}
return PLUGIN_OK;
}