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rockbox/uisimulator/tree.c
Björn Stenberg c492d24cce Adapted to changes in the lcd API. 
Added player support to the dir browser.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@541 a1c6a512-1295-4272-9138-f99709370657
2002-05-10 14:56:52 +00:00

290 lines
8.1 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Daniel Stenberg
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <string.h>
#include <stdlib.h>
#include <dir.h>
#include <file.h>
#include <types.h>
#include <lcd.h>
#include <button.h>
#include "kernel.h"
#include "tree.h"
#include "icons.h"
#include "play.h"
#define TREE_MAX_FILENAMELEN 128
struct entry {
int file; /* TRUE if file, FALSE if dir */
char name[TREE_MAX_FILENAMELEN];
int namelen;
};
void browse_root(void)
{
dirbrowse("/");
}
#ifdef HAVE_LCD_BITMAP
#define TREE_MAX_ON_SCREEN 7
#define TREE_MAX_LEN_DISPLAY 16 /* max length that fits on screen */
#define MARGIN_Y 8 /* Y pixel margin */
#define MARGIN_X 12 /* X pixel margin */
#define LINE_Y 0 /* Y position the entry-list starts at */
#define LINE_X 2 /* X position the entry-list starts at */
#define LINE_HEIGTH 8 /* pixels for each text line */
extern unsigned char bitmap_icons_6x8[LastIcon][6];
extern icons_6x8;
#else /* HAVE_LCD_BITMAP */
#define TREE_MAX_ON_SCREEN 2
#define TREE_MAX_LEN_DISPLAY 11 /* max length that fits on screen */
#define LINE_Y 0 /* Y position the entry-list starts at */
#define LINE_X 1 /* X position the entry-list starts at */
#endif /* HAVE_LCD_BITMAP */
int static showdir(char *path, struct entry *buffer, int start,
int scrollpos, int* at_end)
{
int i;
int j=0;
int icon_type = 0;
DIR *dir = opendir(path);
struct dirent *entry;
if(!dir)
return -1; /* not a directory */
i=start;
*at_end=0; /* Have we displayed the last directory entry? */
while((entry = readdir(dir))) {
int len;
if(entry->d_name[0] == '.')
/* skip names starting with a dot */
continue;
if(j++ < scrollpos)
continue ;
len = strlen(entry->d_name);
if(len < TREE_MAX_FILENAMELEN)
/* strncpy() is evil, we memcpy() instead, +1 includes the
trailing zero */
memcpy(buffer[i].name, entry->d_name, len+1);
else
memcpy(buffer[i].name, "too long", 9);
buffer[i].file = !(entry->attribute&ATTR_DIRECTORY);
#ifdef HAVE_LCD_BITMAP
if ( buffer[i].file )
icon_type=File;
else
icon_type=Folder;
lcd_bitmap(bitmap_icons_6x8[icon_type], 6, MARGIN_Y+i*LINE_HEIGTH, 6,
8, TRUE);
#endif
if(len < TREE_MAX_LEN_DISPLAY)
lcd_puts(LINE_X, LINE_Y+i, buffer[i].name);
else {
char storage = buffer[i].name[TREE_MAX_LEN_DISPLAY];
buffer[i].name[TREE_MAX_LEN_DISPLAY]=0;
lcd_puts(LINE_X, LINE_Y+i, buffer[i].name);
buffer[i].name[TREE_MAX_LEN_DISPLAY]=storage;
}
if(++i >= TREE_MAX_ON_SCREEN)
break;
}
if (entry==0) {
*at_end=1;
} else {
*at_end=(readdir(dir)==0);
}
j = i ;
while (j++ < TREE_MAX_ON_SCREEN) {
lcd_puts(LINE_X, LINE_Y+j," ");
}
closedir(dir);
return i;
}
bool dirbrowse(char *root)
{
struct entry buffer[TREE_MAX_ON_SCREEN];
int numentries;
char buf[255];
char currdir[255];
int dircursor=0;
int i;
int start=0;
int at_end=0;
lcd_clear_display();
#ifdef HAVE_LCD_BITMAP
lcd_putsxy(0,0, "[Browse]",0);
lcd_setmargins(0,MARGIN_Y);
lcd_setfont(0);
#endif
memcpy(currdir,root,sizeof(currdir));
numentries = showdir(root, buffer, 0, start, &at_end);
if (numentries == -1)
return -1; /* root is not a directory */
lcd_puts(0, dircursor, "-");
lcd_update();
while(1) {
int key = button_get();
if(!key) {
sleep(1);
continue;
}
switch(key) {
case BUTTON_OFF:
return FALSE;
break;
case BUTTON_LEFT:
i=strlen(currdir);
if (i==1) {
return FALSE;
}
else {
while (currdir[i-1]!='/')
i--;
strcpy(buf,&currdir[i]);
if (i==1)
currdir[i]=0;
else
currdir[i-1]=0;
lcd_clear_display();
#ifdef HAVE_LCD_BITMAP
lcd_putsxy(0,0, "[Browse]",0);
#endif
numentries = showdir(currdir, buffer, 0, 0, &at_end);
dircursor=0;
start=0;
while ( (dircursor < TREE_MAX_ON_SCREEN) &&
(strcmp(buffer[dircursor].name,buf)!=0))
dircursor++;
if (dircursor==TREE_MAX_ON_SCREEN)
dircursor=0;
lcd_puts(0, LINE_Y+dircursor, "-");
lcd_update();
}
break;
case BUTTON_RIGHT:
case BUTTON_PLAY:
if ((currdir[0]=='/') && (currdir[1]==0)) {
sprintf(buf,"%s%s",currdir,buffer[dircursor].name);
} else {
sprintf(buf,"%s/%s",currdir,buffer[dircursor].name);
}
if (!buffer[dircursor].file) {
memcpy(currdir,buf,sizeof(currdir));
dircursor=0;
start=0;
} else {
playtune(currdir, buffer[dircursor].name);
#ifdef HAVE_LCD_BITMAP
lcd_setmargins(0, MARGIN_Y);
lcd_setfont(0);
#endif
}
lcd_clear_display();
numentries = showdir(currdir, buffer, 0, start, &at_end);
#ifdef HAVE_LCD_BITMAP
lcd_putsxy(0,0, "[Browse]",0);
#endif
lcd_puts(0, LINE_Y+dircursor, "-");
lcd_update();
break;
case BUTTON_UP:
if(dircursor) {
lcd_puts(0, LINE_Y+dircursor, " ");
dircursor--;
lcd_puts(0, LINE_Y+dircursor, "-");
lcd_update();
} else
{
if (start) {
lcd_clear_display();
start--;
numentries = showdir(currdir, buffer, 0,
start, &at_end);
#ifdef HAVE_LCD_BITMAP
lcd_putsxy(0,0, "[Browse]",0);
#endif
lcd_puts(0, LINE_Y+dircursor, "-");
lcd_update();
}
}
break;
case BUTTON_DOWN:
if(dircursor+1 < numentries) {
lcd_puts(0, LINE_Y+dircursor, " ");
dircursor++;
lcd_puts(0, LINE_Y+dircursor, "-");
lcd_update();
} else
{
if (!at_end) {
lcd_clear_display();
start++;
numentries = showdir(currdir, buffer, 0,
start, &at_end);
#ifdef HAVE_LCD_BITMAP
lcd_putsxy(0,0, "[Browse]",0);
#endif
lcd_puts(0, LINE_Y+dircursor, "-");
lcd_update();
}
}
break;
}
}
return FALSE;
}
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