nes-proj/apps/directory/directory.c

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/*
* Copyright (c) 2003, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the Contiki desktop environment
*
* $Id: directory.c,v 1.2 2006/08/13 14:02:07 oliverschmidt Exp $
*
*/
#include <stdlib.h>
#include <string.h>
#include "contiki.h"
#include "cfs/cfs.h"
#include "ctk/ctk.h"
#include "ctk/ctk-draw.h"
#include "program-handler.h"
#define FILENAMELEN 24
#define MAX_NUMFILES 40
#define WIDTH 36
#define HEIGHT 22
static char (filenames[FILENAMELEN + 1])[MAX_NUMFILES];
static struct dsc *dscs[MAX_NUMFILES];
static unsigned char numfiles, morestart, filenameptr;
static struct ctk_window window;
static struct ctk_label description =
{CTK_LABEL(0, HEIGHT - 1, WIDTH, 1, "")};
static char autoexit = 1;
static struct ctk_button autoexitbutton =
{CTK_BUTTON(WIDTH/2 - 9, 20, 9, "Auto-exit")};
static char autoexiton[] = "is On ";
static char autoexitoff[] = "is Off";
static struct ctk_label autoexitlabel =
{CTK_LABEL(WIDTH/2 - 9 + 12, 20, 6, 1, autoexiton)};
static struct ctk_button morebutton =
{CTK_BUTTON(0, 20, 4, "More")};
static struct ctk_button backbutton =
{CTK_BUTTON(0, 20, 4, "Back")};
static struct ctk_button reloadbutton =
{CTK_BUTTON(30, 20, 6, "Reload")};
PROCESS(directory_process, "Directory browser");
static unsigned char width, height;
#define LOADING_DIR 1
#define LOADING_DSC 2
static char loading = 0;
static struct cfs_dir dir;
/*-----------------------------------------------------------------------------------*/
static void
show_statustext(char *text)
{
ctk_label_set_text(&description, text);
CTK_WIDGET_REDRAW(&description);
}
/*-----------------------------------------------------------------------------------*/
static void
startloading(void)
{
if(cfs_opendir(&dir, "/") != 0) {
show_statustext("Cannot open directory");
loading = 0;
} else {
loading = 1;
process_post(&directory_process, PROCESS_EVENT_CONTINUE, NULL);
numfiles = 0;
}
}
/*-----------------------------------------------------------------------------------*/
static void
makewindow(unsigned char i)
{
unsigned char x, y;
ctk_window_clear(&window);
CTK_WIDGET_SET_YPOS(&description, height - 3);
CTK_WIDGET_SET_WIDTH(&description, width);
CTK_WIDGET_ADD(&window, &description);
morestart = i;
x = 0; y = 1;
for(; dscs[i] != NULL; ++i) {
if(x + strlen(dscs[i]->icon->title) >= width) {
y += 5;
x = 0;
if(y >= height - 2 - 4) {
morestart = i;
break;
}
}
CTK_WIDGET_SET_XPOS(dscs[i]->icon, x);
CTK_WIDGET_SET_YPOS(dscs[i]->icon, y);
CTK_WIDGET_ADD(&window, dscs[i]->icon);
x += (unsigned char)strlen(dscs[i]->icon->title) + 2;
}
CTK_WIDGET_SET_YPOS(&autoexitbutton, height - 2);
CTK_WIDGET_ADD(&window, &autoexitbutton);
CTK_WIDGET_SET_YPOS(&autoexitlabel, height - 2);
CTK_WIDGET_ADD(&window, &autoexitlabel);
CTK_WIDGET_FOCUS(&window, &autoexitbutton);
if(i != morestart) {
CTK_WIDGET_SET_YPOS(&backbutton, height - 1);
CTK_WIDGET_ADD(&window, &backbutton);
} else {
CTK_WIDGET_SET_YPOS(&morebutton, height - 1);
CTK_WIDGET_ADD(&window, &morebutton);
}
CTK_WIDGET_SET_XPOS(&reloadbutton, width - 8);
CTK_WIDGET_SET_YPOS(&reloadbutton, height - 1);
CTK_WIDGET_ADD(&window, &reloadbutton);
}
/*-----------------------------------------------------------------------------------*/
static void
quit(void)
{
unsigned char i;
cfs_closedir(&dir);
ctk_window_close(&window);
for(i = 0; dscs[i] != NULL; ++i) {
LOADER_UNLOAD_DSC(dscs[i]);
}
process_exit(&directory_process);
LOADER_UNLOAD();
}
/*-----------------------------------------------------------------------------------*/
static void
read_dirent(void)
{
static struct cfs_dirent dirent;
static char message[40];
if(loading == LOADING_DIR) {
if(cfs_readdir(&dir, &dirent)) {
cfs_closedir(&dir);
loading = LOADING_DSC;
filenameptr = 0;
} else if(strcasecmp(&dirent.name[strlen(dirent.name) - 4], ".dsc") == 0) {
strncpy(filenames[numfiles], dirent.name, FILENAMELEN);
++numfiles;
if(numfiles == MAX_NUMFILES) {
cfs_closedir(&dir);
loading = LOADING_DSC;
filenameptr = 0;
return;
}
strcpy(message, "Found \"");
strcpy(message + 7, dirent.name);
strcpy(message + 7 + strlen(dirent.name), "\"...");
show_statustext(message);
}
}
}
/*-----------------------------------------------------------------------------------*/
static void
load_dirent(void)
{
static char message[40];
char *name;
if(loading == LOADING_DSC) {
name = filenames[filenameptr];
dscs[filenameptr] = LOADER_LOAD_DSC(name);
if(dscs[filenameptr] == NULL || filenameptr + 1 >= numfiles) {
loading = 0;
makewindow(0);
show_statustext("Directory loaded");
ctk_window_redraw(&window);
return;
}
++filenameptr;
strcpy(message, "Loading \"");
strcpy(message + 9, name);
strcpy(message + 9 + strlen(name), "\"...");
show_statustext(message);
}
}
/*-----------------------------------------------------------------------------------*/
PROCESS_THREAD(directory_process, ev, data)
{
unsigned char i;
PROCESS_BEGIN();
width = ctk_draw_width() - 2;
height = ctk_draw_height() - 3;
ctk_window_new(&window, width, height, "Directory");
/* loaddirectory();*/
makewindow(0);
show_statustext("Loading directory...");
startloading();
ctk_window_open(&window);
while(1) {
PROCESS_WAIT_EVENT();
if(ev == PROCESS_EVENT_CONTINUE) {
read_dirent();
load_dirent();
if(loading != 0) {
process_post(&directory_process, PROCESS_EVENT_CONTINUE, NULL);
}
} else if(ev == ctk_signal_widget_activate) {
if(data == (process_data_t)&reloadbutton) {
for(i = 0; dscs[i] != NULL; ++i) {
LOADER_UNLOAD_DSC(dscs[i]);
dscs[i] = NULL;
}
/* loaddirectory();*/
startloading();
makewindow(0);
ctk_window_open(&window);
} else if(data == (process_data_t)&morebutton) {
makewindow(morestart);
ctk_window_open(&window);
} else if(data == (process_data_t)&backbutton) {
makewindow(0);
ctk_window_open(&window);
} else if(data == (process_data_t)&autoexitbutton) {
autoexit = 1 - autoexit;
if(autoexit == 1) {
ctk_label_set_text(&autoexitlabel, autoexiton);
} else {
ctk_label_set_text(&autoexitlabel, autoexitoff);
}
CTK_WIDGET_REDRAW(&autoexitlabel);
} else {
for(i = 0; dscs[i] != NULL; ++i) {
if(data == (process_data_t)(dscs[i]->icon)) {
program_handler_load(dscs[i]->prgname, NULL);
if(autoexit) {
ctk_window_close(&window);
quit();
}
break;
}
}
}
} else if(ev == ctk_signal_widget_select) {
if(data == (process_data_t)&reloadbutton) {
show_statustext("Reload directory");
} else if(data == (process_data_t)&morebutton) {
show_statustext("Show more files");
} else if(data == (process_data_t)&backbutton) {
show_statustext("Show first files");
} else if(data == (process_data_t)&autoexitbutton) {
show_statustext("Exit when loading program");
} else {
for(i = 0; dscs[i] != NULL; ++i) {
if(data == (process_data_t)(dscs[i]->icon)) {
show_statustext(dscs[i]->description);
break;
}
}
}
} else if(ev == ctk_signal_window_close &&
data == (process_data_t)&window) {
quit();
} else if(ev == PROCESS_EVENT_EXIT) {
ctk_window_close(&window);
quit();
}
}
PROCESS_END();
}
/*-----------------------------------------------------------------------------------*/