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|
/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2010 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <glib.h>
#include <stdio.h>
#include "config.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "file.h"
#include "debug.h"
#include "projection.h"
#include "coord.h"
#include "transform.h"
#include "callback.h"
#include "map.h"
#include "command.h"
#include "bookmarks.h"
#include "navit.h"
#include "navit_nls.h"
#include "util.h"
/* FIXME: Move this to support directory */
#ifdef _MSC_VER
#include <windows.h>
static int ftruncate(int fd, __int64 length)
{
HANDLE fh = (HANDLE)_get_osfhandle(fd);
if (!fh || _lseeki64(fd, length, SEEK_SET)) {
return -1;
}
return SetEndOfFile(fh) ? 0 : -1;
}
#endif /* _MSC_VER */
struct bookmarks {
//data storage
struct map *bookmark;
struct map_rect *mr;
GHashTable *bookmarks_hash;
GList *bookmarks_list;
char* bookmark_file;
char *working_file;
struct bookmark_item_priv* clipboard;
struct bookmark_item_priv* root;
struct bookmark_item_priv* current;
//Refs to other objects
struct transformation *trans;
struct attr **attrs;
struct callback_list *attr_cbl;
struct attr *parent;
};
struct bookmark_item_priv {
char *label;
enum item_type type;
struct pcoord c;
GList *children;
GList *iter;
struct bookmark_item_priv *parent;
struct item item;
};
void bookmarks_move_root(struct bookmarks *this_) {
this_->current=this_->root;
this_->current->iter=g_list_first(this_->current->children);
dbg(2,"Root list have %u entries\n",g_list_length(this_->current->children));
return;
}
void bookmarks_move_up(struct bookmarks *this_) {
if (this_->current->parent) {
this_->current=this_->current->parent;
this_->current->iter=this_->current->children;
}
return;
}
int bookmarks_move_down(struct bookmarks *this_,const char* name) {
bookmarks_item_rewind(this_);
if (this_->current->children==NULL) {
return 0;
}
while (this_->current->iter!=NULL) {
struct bookmark_item_priv* data=(struct bookmark_item_priv*)this_->current->iter->data;
if (!strcmp(data->label,name)) {
this_->current=(struct bookmark_item_priv*)this_->current->iter->data;
this_->current->iter=g_list_first(this_->current->children);
dbg(2,"%s list have %u entries\n",this_->current->label,g_list_length(this_->current->children));
return 1;
}
this_->current->iter=g_list_next(this_->current->iter);
}
return 0;
}
void bookmarks_item_rewind(struct bookmarks* this_) {
this_->current->children=g_list_first(this_->current->children);
this_->current->iter=this_->current->children;
this_->current->iter=this_->current->children;
}
struct item* bookmarks_get_item(struct bookmarks* this_) {
struct item item,*ret;
if (this_->current->iter==NULL) {
return NULL;
}
item=((struct bookmark_item_priv*)this_->current->iter->data)->item;
this_->current->iter=g_list_next(this_->current->iter);
ret = map_rect_get_item_byid(this_->mr, item.id_hi, item.id_lo);
return ret;
}
const char* bookmarks_item_cwd(struct bookmarks* this_) {
return this_->current->label;
}
static void bookmarks_clear_item(struct bookmark_item_priv *b_item) {
b_item->children=g_list_first(b_item->children);
while(b_item->children) {
bookmarks_clear_item((struct bookmark_item_priv*)b_item->children->data);
b_item->children=g_list_next(b_item->children);
}
g_free(b_item->label);
g_free(b_item);
}
static void
bookmarks_clear_hash(struct bookmarks *this_) {
bookmarks_clear_item(this_->root);
g_hash_table_destroy(this_->bookmarks_hash);
g_list_free(this_->bookmarks_list);
}
static void
bookmarks_load_hash(struct bookmarks *this_) {
struct bookmark_item_priv *b_item;
struct item *item;
struct attr attr;
struct coord c;
char *pos,*finder;
char *copy_helper;
if (this_->mr) {
map_rect_destroy(this_->mr);
}
this_->mr=map_rect_new(this_->bookmark, NULL);
this_->bookmarks_hash=g_hash_table_new(g_str_hash, g_str_equal);
this_->root=g_new0(struct bookmark_item_priv,1);
this_->root->type=type_none;
this_->root->parent=NULL;
this_->root->children=NULL;
bookmarks_move_root(this_);
while ((item=map_rect_get_item(this_->mr))) {
if (item->type != type_bookmark && item->type != type_bookmark_folder ) continue;
if (!item_attr_get(item, attr_path, &attr)) {
item_attr_get(item, attr_label, &attr);
}
item_coord_get(item, &c, 1);
b_item=g_new0(struct bookmark_item_priv,1);
b_item->c.x=c.x;
b_item->c.y=c.y;
b_item->label=g_strdup(attr.u.str);
b_item->type=item->type;
b_item->item=*item;
//Prepare position
bookmarks_move_root(this_);
finder=b_item->label;
while ((pos=strchr(finder,'/'))) {
*pos=0x00;
dbg(1,"Found path entry: %s\n",finder);
if (!bookmarks_move_down(this_,finder)) {
struct bookmark_item_priv *path_item=g_new0(struct bookmark_item_priv,1);
path_item->type=type_bookmark_folder;
path_item->parent=this_->current;
path_item->children=NULL;
path_item->label=g_strdup(finder);
this_->current->children=g_list_append(this_->current->children,path_item);
this_->current=path_item;
g_hash_table_insert(this_->bookmarks_hash,b_item->label,path_item);
this_->bookmarks_list=g_list_append(this_->bookmarks_list,path_item);
}
finder+=strlen(finder)+1;
}
copy_helper=g_strdup(finder);
free(b_item->label);
b_item->label=copy_helper;
b_item->parent=this_->current;
g_hash_table_insert(this_->bookmarks_hash,b_item->label,b_item);
this_->bookmarks_list=g_list_append(this_->bookmarks_list,b_item);
this_->current->children=g_list_append(this_->current->children,b_item);
this_->current->children=g_list_first(this_->current->children);
dbg(1,"Added %s to %s and current list now %u long\n",b_item->label,this_->current->label,g_list_length(this_->current->children));
}
bookmarks_move_root(this_);
}
struct bookmarks *
bookmarks_new(struct attr *parent, struct attr **attrs, struct transformation *trans) {
struct bookmarks *this_;
if (parent->type!=attr_navit) {
return NULL;
}
this_ = g_new0(struct bookmarks,1);
this_->attr_cbl=callback_list_new();
this_->parent=parent;
//this_->attrs=attr_list_dup(attrs);
this_->trans=trans;
this_->bookmark_file=g_strjoin(NULL, navit_get_user_data_directory(TRUE), "/bookmark.txt", NULL);
this_->working_file=g_strjoin(NULL, navit_get_user_data_directory(TRUE), "/bookmark.txt.tmp", NULL);
this_->clipboard=g_new0(struct bookmark_item_priv,1);
{
//Load map now
struct attr type={attr_type, {"textfile"}}, data={attr_data, {this_->bookmark_file}};
struct attr *attrs[]={&type, &data, NULL};
this_->bookmark=map_new(this_->parent, attrs);
if (!this_->bookmark)
return NULL;
bookmarks_load_hash(this_);
}
return this_;
}
void
bookmarks_destroy(struct bookmarks *this_) {
bookmarks_clear_hash(this_);
map_destroy(this_->bookmark);
callback_list_destroy(this_->attr_cbl);
g_free(this_->bookmark_file);
g_free(this_->working_file);
g_free(this_->clipboard);
g_free(this_);
}
struct map*
bookmarks_get_map(struct bookmarks *this_) {
return this_->bookmark;
}
enum projection bookmarks_get_projection(struct bookmarks *this_){
return map_projection(this_->bookmark);
}
void
bookmarks_add_callback(struct bookmarks *this_, struct callback *cb)
{
callback_list_add(this_->attr_cbl, cb);
}
static int
bookmarks_store_bookmarks_to_file(struct bookmarks *this_, int limit,int replace) {
FILE *f;
struct bookmark_item_priv *item,*parent_item;
char *fullname;
const char *prostr;
int result;
GHashTable *dedup=g_hash_table_new_full(g_str_hash,g_str_equal,g_free,NULL);
f=fopen(this_->working_file, replace ? "w+" : "a+");
if (f==NULL) {
navit_add_message(this_->parent->u.navit,_("Failed to write bookmarks file"));
return FALSE;
}
this_->bookmarks_list=g_list_first(this_->bookmarks_list);
while (this_->bookmarks_list) {
item=(struct bookmark_item_priv*)this_->bookmarks_list->data;
parent_item=item;
fullname=g_strdup(item->label);
while ((parent_item=parent_item->parent)) {
char *pathHelper;
if (parent_item->label) {
pathHelper=g_strconcat(parent_item->label,"/",fullname,NULL);
g_free(fullname);
fullname=g_strdup(pathHelper);
g_free(pathHelper);
dbg(1,"full name: %s\n",fullname);
}
}
if (!g_hash_table_lookup(dedup,fullname)) {
g_hash_table_insert(dedup,fullname,fullname);
if (item->type == type_bookmark) {
prostr = projection_to_name(projection_mg,NULL);
if (fprintf(f,"%s%s%s0x%x %s0x%x type=%s label=\"%s\" path=\"%s\"\n",
prostr, *prostr ? ":" : "",
item->c.x >= 0 ? "":"-", item->c.x >= 0 ? item->c.x : -item->c.x,
item->c.y >= 0 ? "":"-", item->c.y >= 0 ? item->c.y : -item->c.y,
"bookmark", item->label,fullname)<1) {
g_free(fullname);
break;
}
}
if (item->type == type_bookmark_folder) {
prostr = projection_to_name(projection_mg,NULL);
if (fprintf(f,"%s%s%s0x%x %s0x%x type=%s label=\"%s\" path=\"%s\"\n",
prostr, *prostr ? ":" : "",
"", 0,
"", 0,
"bookmark_folder", item->label,fullname)<1) {
g_free(fullname);
break;
}
}
}
/* Limit could be zero, so we start decrementing it from zero and never reach 1
or it was bigger and we decreased it earlier. So when this counter becomes 1, we know
that we have enough entries in bookmarks file */
if (limit==1) {
break;
}
limit--;
this_->bookmarks_list=g_list_next(this_->bookmarks_list);
}
fclose(f);
g_hash_table_destroy(dedup);
if (this_->mr) {
map_rect_destroy(this_->mr);
this_->mr = 0;
}
unlink(this_->bookmark_file);
result=(rename(this_->working_file,this_->bookmark_file)==0);
if (!result)
{
navit_add_message(this_->parent->u.navit,_("Failed to write bookmarks file"));
}
return result;
}
/*
* bookmarks_get_destination_file
*
* returns the name of the file used to store destinations with its
* full path
*
* arg: gboolean create: create the directory where the file is stored
* if it does not exist
*/
char*
bookmarks_get_destination_file(gboolean create)
{
return g_strjoin(NULL, navit_get_user_data_directory(create), "/destination.txt", NULL);
}
/*
* bookmarks_get_center_file
*
* returns the name of the file used to store the center file with its
* full path
*
* arg: gboolean create: create the directory where the file is stored
* if it does not exist
*/
char*
bookmarks_get_center_file(gboolean create)
{
return g_strjoin(NULL, navit_get_user_data_directory(create), "/center.txt", NULL);
}
void
bookmarks_set_center_from_file(struct bookmarks *this_, char *file)
{
FILE *f;
char *line = NULL;
size_t line_size = 0;
enum projection pro;
struct coord *center;
f = fopen(file, "r");
if (! f)
return;
getline(&line, &line_size, f);
fclose(f);
if (line) {
center = transform_center(this_->trans);
pro = transform_get_projection(this_->trans);
coord_parse(g_strchomp(line), pro, center);
free(line);
}
return;
}
void
bookmarks_write_center_to_file(struct bookmarks *this_, char *file)
{
FILE *f;
enum projection pro;
struct coord *center;
f = fopen(file, "w+");
if (f) {
center = transform_center(this_->trans);
pro = transform_get_projection(this_->trans);
coord_print(pro, center, f);
fclose(f);
} else {
perror(file);
}
return;
}
static void
bookmarks_emit_dbus_signal(struct bookmarks *this_, struct pcoord *c, const char *description,int create)
{
struct attr attr1,attr2,attr3,attr4,cb,*attr_list[5];
int valid=0;
attr1.type=attr_type;
attr1.u.str="bookmark";
attr2.type=attr_data;
attr2.u.str=create ? "create" : "delete";
attr3.type=attr_data;
attr3.u.str=(char *)description;
attr4.type=attr_coord;
attr4.u.pcoord=c;
attr_list[0]=&attr1;
attr_list[1]=&attr2;
attr_list[2]=&attr3;
attr_list[3]=&attr4;
attr_list[4]=NULL;
if (navit_get_attr(this_->parent->u.navit, attr_callback_list, &cb, NULL))
callback_list_call_attr_4(cb.u.callback_list, attr_command, "dbus_send_signal", attr_list, NULL, &valid);
}
/**
* Record the given set of coordinates as a bookmark
*
* @param navit The navit instance
* @param c The coordinate to store
* @param description A label which allows the user to later identify this bookmark
* @returns nothing
*/
int
bookmarks_add_bookmark(struct bookmarks *this_, struct pcoord *pc, const char *description)
{
struct bookmark_item_priv *b_item=g_new0(struct bookmark_item_priv,1);
int result;
if (pc) {
b_item->c.x=pc->x;
b_item->c.y=pc->y;
b_item->type=type_bookmark;
} else {
b_item->type=type_bookmark_folder;
}
b_item->label=g_strdup(description);
b_item->parent=this_->current;
b_item->children=NULL;
this_->current->children=g_list_first(this_->current->children);
this_->current->children=g_list_append(this_->current->children,b_item);
this_->bookmarks_list=g_list_first(this_->bookmarks_list);
this_->bookmarks_list=g_list_append(this_->bookmarks_list,b_item);
result=bookmarks_store_bookmarks_to_file(this_,0,0);
callback_list_call_attr_0(this_->attr_cbl, attr_bookmark_map);
bookmarks_clear_hash(this_);
bookmarks_load_hash(this_);
bookmarks_emit_dbus_signal(this_,&(b_item->c),description,TRUE);
return result;
}
int
bookmarks_cut_bookmark(struct bookmarks *this_, const char *label) {
if (bookmarks_copy_bookmark(this_,label)) {
return bookmarks_delete_bookmark(this_,label);
}
return FALSE;
}
int
bookmarks_copy_bookmark(struct bookmarks *this_, const char *label) {
bookmarks_item_rewind(this_);
if (this_->current->children==NULL) {
return 0;
}
while (this_->current->iter!=NULL) {
struct bookmark_item_priv* data=(struct bookmark_item_priv*)this_->current->iter->data;
if (!strcmp(data->label,label)) {
this_->clipboard->c=data->c;
this_->clipboard->type=data->type;
this_->clipboard->item=data->item;
this_->clipboard->children=data->children;
if (!this_->clipboard->label) {
g_free(this_->clipboard->label);
}
this_->clipboard->label=g_strdup(data->label);
return TRUE;
}
this_->current->iter=g_list_next(this_->current->iter);
}
return FALSE;
}
int
bookmarks_paste_bookmark(struct bookmarks *this_) {
int result;
struct bookmark_item_priv* b_item;
if (!this_->clipboard->label) {
return FALSE;
}
b_item=g_new0(struct bookmark_item_priv,1);
b_item->c.x=this_->clipboard->c.x;
b_item->c.y=this_->clipboard->c.y;
b_item->label=g_strdup(this_->clipboard->label);
b_item->type=this_->clipboard->type;
b_item->item=this_->clipboard->item;
b_item->parent=this_->current;
b_item->children=this_->clipboard->children;
g_hash_table_insert(this_->bookmarks_hash,b_item->label,b_item);
this_->bookmarks_list=g_list_append(this_->bookmarks_list,b_item);
this_->current->children=g_list_append(this_->current->children,b_item);
this_->current->children=g_list_first(this_->current->children);
result=bookmarks_store_bookmarks_to_file(this_,0,0);
callback_list_call_attr_0(this_->attr_cbl, attr_bookmark_map);
bookmarks_clear_hash(this_);
bookmarks_load_hash(this_);
return result;
}
int
bookmarks_delete_bookmark(struct bookmarks *this_, const char *label) {
int result;
bookmarks_item_rewind(this_);
if (this_->current->children==NULL) {
return 0;
}
while (this_->current->iter!=NULL) {
struct bookmark_item_priv* data=(struct bookmark_item_priv*)this_->current->iter->data;
if (!strcmp(data->label,label)) {
this_->bookmarks_list=g_list_first(this_->bookmarks_list);
this_->bookmarks_list=g_list_remove(this_->bookmarks_list,data);
result=bookmarks_store_bookmarks_to_file(this_,0,0);
callback_list_call_attr_0(this_->attr_cbl, attr_bookmark_map);
bookmarks_clear_hash(this_);
bookmarks_load_hash(this_);
bookmarks_emit_dbus_signal(this_,&(data->c),label,FALSE);
return result;
}
this_->current->iter=g_list_next(this_->current->iter);
}
return FALSE;
}
int
bookmarks_rename_bookmark(struct bookmarks *this_, const char *oldName, const char* newName) {
int result;
bookmarks_item_rewind(this_);
if (this_->current->children==NULL) {
return 0;
}
while (this_->current->iter!=NULL) {
struct bookmark_item_priv* data=(struct bookmark_item_priv*)this_->current->iter->data;
if (!strcmp(data->label,oldName)) {
g_free(data->label);
data->label=g_strdup(newName);
result=bookmarks_store_bookmarks_to_file(this_,0,0);
callback_list_call_attr_0(this_->attr_cbl, attr_bookmark_map);
bookmarks_clear_hash(this_);
bookmarks_load_hash(this_);
return result;
}
this_->current->iter=g_list_next(this_->current->iter);
}
return FALSE;
}
static int
bookmarks_shrink(char *bookmarks, int offset)
{
char buffer[4096];
int count,ioffset=offset,ooffset=0;
FILE *f;
if (!offset)
return 1;
f = fopen(bookmarks, "r+");
if (!f)
return 0;
for (;;) {
fseek(f, ioffset, SEEK_SET);
count=fread(buffer, 1, sizeof(buffer), f);
if (!count)
break;
fseek(f, ooffset, SEEK_SET);
if (fwrite(buffer, count, 1, f) != 1)
return 0;
ioffset+=count;
ooffset+=count;
}
fflush(f);
ftruncate(fileno(f),ooffset);
#ifdef HAVE_FSYNC
fsync(fileno(f));
#endif
fclose(f);
return 1;
}
/**
* @param limit Limits the number of entries in the "backlog". Set to 0 for "infinite"
*/
void
bookmarks_append_coord(struct bookmarks *this_, char *file, struct pcoord *c, int count, const char *type, const char *description, GHashTable *h, int limit)
{
FILE *f;
const char *prostr;
if (limit != 0 && (f=fopen(file, "r"))) {
int *offsets=g_alloca(sizeof(int)*limit);
int offset_pos=0;
int offset;
char buffer[4096];
memset(offsets, 0, sizeof(int)*limit);
for (;;) {
offset=ftell(f);
if (!fgets(buffer, sizeof(buffer), f))
break;
if (strstr(buffer,"type=")) {
offsets[offset_pos]=offset;
offset_pos=(offset_pos+1)%limit;
}
}
fclose(f);
bookmarks_shrink(file, offsets[offset_pos]);
}
f=fopen(file, "a");
if (f == NULL) {
dbg(0, "Failed to open destination.txt for writing\n");
return 0;
}
else if (f != NULL) {
if (c) {
int i;
if (description)
fprintf(f,"type=%s label=\"%s\"\n", type, description);
else
fprintf(f,"type=%s\n", type);
for (i = 0 ; i < count ; i++) {
prostr = projection_to_name(c[i].pro,NULL);
fprintf(f,"%s%s%s0x%x %s0x%x\n",
prostr, *prostr ? ":" : "",
c[i].x >= 0 ? "":"-", c[i].x >= 0 ? c[i].x : -c[i].x,
c[i].y >= 0 ? "":"-", c[i].y >= 0 ? c[i].y : -c[i].y);
}
} else
fprintf(f,"\n");
}
fclose(f);
}
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