trunk/src/geotoad.c

/*
 * Copyright (C) 2009 Till Harbaum <till@harbaum.org>.
 *
 * This file is part of GPXView.
 *
 * GPXView 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 3 of the License, or
 * (at your option) any later version.
 *
 * GPXView 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 GPXView.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "gpxview.h"

#define __USE_GNU
#include <string.h>

#include <fcntl.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <math.h>

#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
#include <hildon/hildon-entry.h>
#endif

#define GEOTOAD "/usr/bin/geotoad"

#define COLOR_ERR     "red"
#define COLOR_OK      "darkgreen"
#define COLOR_SYSTEM  "darkblue"

#define BUFFER_SIZE  256

typedef enum {
  GT_STATE_ILLEGAL = 0,
  GT_STATE_STARTED,
  GT_STATE_PREMATURE_END,
  GT_STATE_SAVE_FOUND,
} gt_state_t;

typedef struct {
  appdata_t *appdata;
  
  GPtrArray *argv;
  gchar *info;
  GMutex *update_mutex;
  GCond *update_cond;

  gt_state_t state;

  GtkWidget *dialog;

  long pid;

  struct log_s {
    GtkTextBuffer *buffer;
    GtkWidget *view;
  } log;

  GtkWidget *username, *password, *filename;
  GtkWidget *lat, *lon, *dst;
  
} gt_context_t;

static void arg_free(gpointer data, gpointer user_data) {
  if(data) g_free(data);
}

static void context_free(gt_context_t *context) {
  printf("freeing context\n");

  if(context->info) g_free(context->info);

  g_ptr_array_foreach(context->argv, arg_free, NULL);
  g_ptr_array_free (context->argv, TRUE);

  g_free(context);
}

static void appendf(struct log_s *log, char *colname, 
                    const char *fmt, ...) {
  va_list args;
  va_start( args, fmt );
  char *buf = g_strdup_vprintf(fmt, args);
  va_end( args );

  //   printf("append: %s", buf);

  GtkTextTag *tag = NULL;
  if(colname)
    tag = gtk_text_buffer_create_tag(log->buffer, NULL,
                                     "foreground", colname,
                                     NULL);
  
  GtkTextIter end;
  gtk_text_buffer_get_end_iter(log->buffer, &end);
  if(tag) 
    gtk_text_buffer_insert_with_tags(log->buffer, &end, buf, -1, tag, NULL);
  else    
    gtk_text_buffer_insert(log->buffer, &end, buf, -1);

  g_free(buf);

  gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(log->view),
                               &end, 0.0, TRUE, 0, 1.0); 
}

// This function receives a requst from a worker thread asking to
// update the gui with the required info.
gboolean cb_update_job(gt_context_t *context) {
  if (context->info) {
    char *color = NULL;
    if(strstr(context->info, "Saved to ") != NULL) {
      context->state = GT_STATE_SAVE_FOUND;
      color = COLOR_OK;
    }

    if(strcasestr(context->info, "error") != NULL)
      color = COLOR_ERR;

    appendf(&context->log, color, context->info);
    
    g_free(context->info);
    context->info = NULL;
  }
  
  // Indicate that the update is done
  g_mutex_lock(context->update_mutex);
  g_cond_signal(context->update_cond);
  g_mutex_unlock(context->update_mutex);
  
  return FALSE;
}

// A helper function run in the job thread receiving the string that
// should be displayed in the textview.
void job_add_to_text_viewer(gt_context_t *context,
                            const char *info)
{
  /* TODO: make this cope with format strings */
  /* TODO: make this cope with colors */
  context->info = g_strdup(info);
  
  // Lock mutex to make sure that we will receive the condition signal
  g_mutex_lock(context->update_mutex);
  g_idle_add((GSourceFunc)cb_update_job, context);
  
  // Wait for cb_update_job to tell me that the update is done
  g_cond_wait(context->update_cond,
              context->update_mutex);
  g_mutex_unlock(context->update_mutex);
}

/* custom version of popen to get access to the pid and to be able */
/* to slaughter the child process */
static FILE *gt_popen(char **args, const char *type, long *tid) {
  int   p[2];
  FILE *fp;
  
  if (*type != 'r' && *type != 'w')
    return NULL;
  
  if (pipe(p) < 0)
    return NULL;
  
  if ((*tid = fork()) > 0) { /* then we are the parent */
    if (*type == 'r') {
      close(p[1]);
      fp = fdopen(p[0], type);
    } else {
      close(p[0]);
      fp = fdopen(p[1], type);
    }
    
    return fp;
  } else if (*tid == 0) {  /* we're the child */

    /* make our thread id the process group leader */
    setpgid(0, 0);
    
    if (*type == 'r') {
      fflush(stdout);
      fflush(stderr);
      close(1);
      if (dup(p[1]) < 0)
        perror("dup of write side of pipe failed");
      close(2);
      if (dup(p[1]) < 0)
        perror("dup of write side of pipe failed");
    } else {
      close(0);
      if (dup(p[0]) < 0)
        perror("dup of read side of pipe failed");
    }
    
    close(p[0]); /* close since we dup()'ed what we needed */
    close(p[1]);
    
    execve(args[0], args, NULL);
    
    printf("gt_popen(): execve(%s) failed!\n", args[0]);
  } else {         /* we're having major problems... */
    close(p[0]);
    close(p[1]);
    printf("gt_popen(): fork() failure!\n");
  }
  
  return NULL;
}

// The thread entry point. It will do the job, send the data to the
// GUI and self destruct when it is done.
static gpointer thread_worker(gt_context_t *context)
{
  FILE *fh;
  GIOStatus status;
  GError *error = NULL;
  gsize length;
  gsize terminator_pos;
  gchar *str_return;

  fh = gt_popen((char**)(context->argv->pdata),"r", &context->pid);
  if(!fh) {
    appendf(&context->log, COLOR_ERR, _("Failed to run GeoToad"));
    return NULL;
  }

  /* switch to line buffered mode */
  if(setvbuf(fh, NULL, _IOLBF, 0))
    perror("setvbuf(_IOLBF)");
  
  GIOChannel *gh = g_io_channel_unix_new(fileno(fh));

  while( (status = g_io_channel_read_line(gh,
                                          &str_return,
                                          &length,
                                          &terminator_pos,
                                          &error)) == G_IO_STATUS_NORMAL) {
    job_add_to_text_viewer(context, str_return);
    g_free(str_return);
  }
  
  g_io_channel_unref(gh);
  pclose(fh);
  job_add_to_text_viewer(context, "Job done!");
  
  g_thread_exit(NULL);
  context_free(context);
  
  return NULL;
}


static void arg_dsp(gpointer data, gpointer user_data) {
  gt_context_t *context = (gt_context_t*)user_data;
  
  if(data)
    appendf(&context->log, COLOR_SYSTEM, "%s\n", data);
}

static void run(gt_context_t *context) {
  GError *error = NULL;
  char str[8];

  /* build list of arguments to call geotoad */
  context->argv = g_ptr_array_new();
  g_ptr_array_add (context->argv, g_strdup_printf(GEOTOAD "a"));
  g_ascii_dtostr(str, sizeof(str), context->appdata->gt.distance);
  g_ptr_array_add (context->argv, g_strdup_printf("--distanceMax=%s", str));
  g_ptr_array_add (context->argv, g_strdup_printf("--output=%s", context->appdata->gt.filename));
  g_ptr_array_add (context->argv, g_strdup_printf("--password=%s", context->appdata->gt.password));
  g_ptr_array_add (context->argv, g_strdup_printf("--queryType=coord"));
  g_ptr_array_add (context->argv, g_strdup_printf("--user=%s", context->appdata->username));

  /* check if we need to add proxy config */
  char *proxy = NULL;
  if(context->appdata->proxy && context->appdata->proxy->host) {
    if(context->appdata->proxy->use_authentication &&
       context->appdata->proxy->authentication_user &&
       context->appdata->proxy->authentication_password)
      proxy = g_strdup_printf("--proxy=http://%s:%s@%s:%d", 
                              context->appdata->proxy->authentication_user,
                              context->appdata->proxy->authentication_password,
                              context->appdata->proxy->host,
                              context->appdata->proxy->port);
    else
      proxy = g_strdup_printf("--proxy=http://%s:%d", 
                              context->appdata->proxy->host,
                              context->appdata->proxy->port);
    
    g_ptr_array_add (context->argv, proxy);
  }

  /* convert coordinates into simple ascii format */
  char n = (context->appdata->gt.lat >= 0)?'N':'S';
  char e = (context->appdata->gt.lon >= 0)?'E':'W';
  float lat = fabs(context->appdata->gt.lat);
  float lon = fabs(context->appdata->gt.lon);
  float lat_mint, lat_int, lat_frac = modff(lat, &lat_int);
  float lon_mint, lon_int, lon_frac = modff(lon, &lon_int);
  lat_frac = modff(lat_frac*60.0, &lat_mint);
  lon_frac = modff(lon_frac*60.0, &lon_mint);

  g_ptr_array_add (context->argv, 
           g_strdup_printf("%c%02u %02u.%03u %c%03u %02u.%03u",
           n, (int)lat_int, (int)lat_mint, (int)(lat_frac*1000.0+0.5),
           e, (int)lon_int, (int)lon_mint, (int)(lon_frac*1000.0+0.5)));

  //  g_ptr_array_add (context->argv, g_strdup_printf("2>&1"));
  g_ptr_array_add (context->argv, NULL);

  /* show all entries */
  g_ptr_array_foreach(context->argv, arg_dsp, context);

  g_thread_create((GThreadFunc)thread_worker, context, FALSE, &error);
  if (error) {
    appendf(&context->log, COLOR_ERR, "Error: %s\n", error->message);
    g_error_free(error);
  }
}
        
/* show text window and display output of running geotoad */
static void gui_run(gt_context_t *context) {
  GtkWidget *dialog = gtk_dialog_new_with_buttons(_("GeoToad - Run"),
                          GTK_WINDOW(context->appdata->window),
                          GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                          GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
                          NULL);

  gtk_window_set_default_size(GTK_WINDOW(dialog), 640, 480);

#ifndef USE_PANNABLE_AREA
  GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL);
  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), 
                                 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
#else
  GtkWidget *pannable_area = hildon_pannable_area_new();
#endif
  
  context->log.buffer = gtk_text_buffer_new(NULL);

#ifndef USE_HILDON_TEXT_VIEW
  context->log.view = gtk_text_view_new_with_buffer(context->log.buffer);
#else
  context->log.view = hildon_text_view_new();
  hildon_text_view_set_buffer(HILDON_TEXT_VIEW(context->log.view), 
                              context->log.buffer);
#endif

#ifndef USE_PANNABLE_AREA
  gtk_container_add(GTK_CONTAINER(scrolled_window), context->log.view);
  gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(scrolled_window),
                                       GTK_SHADOW_IN);

  gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), 
                     scrolled_window, TRUE, TRUE, 0);
#else
  gtk_container_add(GTK_CONTAINER(pannable_area), context->log.view);
  gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), 
                     pannable_area, TRUE, TRUE, 0);
#endif

  gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);

  gtk_widget_show_all(dialog);

  appendf(&context->log, COLOR_SYSTEM, "Running GeoToad\n");
  run(context);

  gtk_dialog_run(GTK_DIALOG(dialog));

  gtk_widget_destroy(dialog);

  errorf("Fertig!\n");

}

static void on_browse(GtkWidget *widget, gpointer data) {
  gt_context_t *context = (gt_context_t*)data;

  printf("Browse %p\n", context->dialog);

#ifdef USE_MAEMO
  GtkWidget *dialog = hildon_file_chooser_dialog_new(GTK_WINDOW(context->dialog), 
                                          GTK_FILE_CHOOSER_ACTION_SAVE);
#else
  GtkWidget *dialog = gtk_file_chooser_dialog_new(_("Save GPX file"),
                                       GTK_WINDOW(context->dialog),
                                       GTK_FILE_CHOOSER_ACTION_SAVE,
                                       GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                                       GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
                                       NULL);
#endif

  printf("set filename <%s>\n", context->appdata->gt.filename);

  if(!g_file_test(context->appdata->gt.filename, G_FILE_TEST_EXISTS)) {
    char *last_sep = strrchr(context->appdata->gt.filename, '/');
    if(last_sep) {
      *last_sep = 0;  // seperate path from file 

      /* the user just created a new document */
      gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), 
                                          context->appdata->gt.filename);
      gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), last_sep+1);

      /* restore full filename */
      *last_sep = '/';
    }
  } else 
    gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(dialog), 
                                  context->appdata->gt.filename);

  if (gtk_dialog_run (GTK_DIALOG(dialog)) == GTK_FM_OK) {
    gchar *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
    gtk_label_set_text(GTK_LABEL(context->filename), name);
  }
  
  gtk_widget_destroy (dialog);
}

static gboolean gui_setup(gt_context_t *context) {
  appdata_t *appdata = context->appdata;
  gboolean ok = FALSE;

  /* if no filename has been setup yet, create one */
  if(!appdata->gt.filename && appdata->path) {
    printf("creating path\n");
    appdata->gt.filename = 
      g_strdup_printf("%s/gtoad.gpx", appdata->path);
  }

  context->dialog = gtk_dialog_new_with_buttons(_("GeoToad - Setup"),
                        GTK_WINDOW(appdata->window),
                        GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                        GTK_STOCK_OK,     GTK_RESPONSE_OK,
                        NULL);

  /* ------------------- Coordinates ------------------------- */
  GtkWidget *hbox = gtk_hbox_new(FALSE, 0);

  GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Position:")));
  gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Distance:")));
  gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);

  /* setup default positions */
  pos_t *refpos = get_pos(appdata);
  if((isnan(appdata->gt.lat) || isnan(appdata->gt.lat)) && refpos) {
    appdata->gt.lat = refpos->lat;
    appdata->gt.lon = refpos->lon;
  }

  vbox = gtk_vbox_new(FALSE, 0);
  GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
  context->lat = lat_entry_new(appdata->gt.lat);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), context->lat);
  context->lon = lon_entry_new(appdata->gt.lon);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), context->lon);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), ihbox);
  float dst = appdata->gt.distance;  // distance is given in kilometers
  if(appdata->imperial) dst /= 1.609344;
  context->dst = dist_entry_new(dst, appdata->imperial);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), context->dst);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);

  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);

  /* ------------------- file name ------------------------- */
  hbox = gtk_hbox_new(FALSE, 0);

  context->filename = gtk_label_new(appdata->gt.filename);
  gtk_misc_set_alignment(GTK_MISC(context->filename), 0.f, 0.5f);
  gtk_label_set_ellipsize(GTK_LABEL(context->filename), PANGO_ELLIPSIZE_MIDDLE);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), context->filename);

  GtkWidget *button = gtk_button_new_with_label(_("Browse"));
#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
  hildon_gtk_widget_set_theme_size(button, 
           (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH));
#endif  
  gtk_signal_connect(GTK_OBJECT(button), "clicked",
                     GTK_SIGNAL_FUNC(on_browse), context);
  gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);

  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);


  /* ------------------- Username/Password ------------------------- */
  hbox = gtk_hbox_new(FALSE, 0);
  vbox = gtk_vbox_new(FALSE, 0);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Username:")));
  gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Password:")));
  gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
  
  vbox = gtk_vbox_new(FALSE, 0);
#ifndef FREMANTLE
  context->username = gtk_entry_new();
  context->password = gtk_entry_new();
#else
  context->username = hildon_entry_new(HILDON_SIZE_AUTO);
  hildon_gtk_entry_set_input_mode(GTK_ENTRY(context->username),
                                  HILDON_GTK_INPUT_MODE_FULL);
  context->password = hildon_entry_new(HILDON_SIZE_AUTO);
  hildon_gtk_entry_set_input_mode(GTK_ENTRY(context->password),
                                  HILDON_GTK_INPUT_MODE_FULL);
#endif
  gtk_entry_set_visibility(GTK_ENTRY(context->password), FALSE);

  /* set saved defaults */
  if(appdata->username)
    gtk_entry_set_text(GTK_ENTRY(context->username), 
                       appdata->username);

  if(appdata->gt.password)
    gtk_entry_set_text(GTK_ENTRY(context->password), 
                       appdata->gt.password);

  gtk_box_pack_start_defaults(GTK_BOX(vbox), context->username);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), context->password);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);

  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);

  gtk_dialog_set_default_response(GTK_DIALOG(context->dialog), GTK_RESPONSE_OK);

  gtk_widget_show_all(context->dialog);

  if(gtk_dialog_run(GTK_DIALOG(context->dialog)) == GTK_RESPONSE_OK) {

    /* parse coordinates */
    appdata->gt.lat = lat_get(context->lat);
    appdata->gt.lon = lon_get(context->lon);

    /* save values */
    if(appdata->username) g_free(appdata->username);
    appdata->username = 
      g_strdup(gtk_entry_get_text(GTK_ENTRY(context->username)));
                                             
    if(appdata->gt.password) g_free(appdata->gt.password);
    appdata->gt.password = 
      g_strdup(gtk_entry_get_text(GTK_ENTRY(context->password)));

    if(appdata->gt.filename) g_free(appdata->gt.filename);
    appdata->gt.filename = 
      g_strdup(gtk_label_get_text(GTK_LABEL(context->filename)));

    /* get distance in kilometers */
    appdata->gt.distance = dist_get(context->dst, FALSE);


    /* check for valid entries */
    if(isnan(appdata->gt.lat) || isnan(appdata->gt.lon) ||
       isnan(appdata->gt.distance) || !appdata->gt.filename ||
       !appdata->username || !appdata->gt.password) 
      errorf(_("GeoToad setup not complete"));
    else
      ok = TRUE;
  }

  gtk_widget_destroy(context->dialog);

  return ok;
}

void geotoad(appdata_t *appdata) {
  if(!geotoad_available()) {
    errorf(_("GeoToad is not installed on this device.\n"
             "You need to install it in order to be able to use it."));
    return;
  }

  gt_context_t *context = g_new0(gt_context_t, 1);
  context->appdata = appdata;

  context->update_mutex = g_mutex_new();
  context->update_cond = g_cond_new();
  //  context->mutex_to_run = mutex_to_run;

  printf("geoToad\n");

  if(gui_setup(context))
    gui_run(context);
}

gboolean geotoad_available(void) {
  /* before doing anything make sure geotoad is installed */
  return g_file_test(GEOTOAD, G_FILE_TEST_IS_EXECUTABLE);
}


1	/*
2	* Copyright (C) 2009 Till Harbaum <till@harbaum.org>.
3	*
4	* This file is part of GPXView.
5	*
6	* GPXView is free software: you can redistribute it and/or modify
7	* it under the terms of the GNU General Public License as published by
8	* the Free Software Foundation, either version 3 of the License, or
9	* (at your option) any later version.
10	*
11	* GPXView is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with GPXView. If not, see <http://www.gnu.org/licenses/>.
18	*/
19
20	#include "gpxview.h"
21
22	#define __USE_GNU
23	#include <string.h>
24
25	#include <fcntl.h>
26	#include <sys/types.h>
27	#include <sys/wait.h>
28	#include <errno.h>
29	#include <math.h>
30
31	#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
32	#include <hildon/hildon-entry.h>
33	#endif
34
35	#define GEOTOAD "/usr/bin/geotoad"
36
37	#define COLOR_ERR "red"
38	#define COLOR_OK "darkgreen"
39	#define COLOR_SYSTEM "darkblue"
40
41	#define BUFFER_SIZE 256
42
43	typedef enum {
44	GT_STATE_ILLEGAL = 0,
45	GT_STATE_STARTED,
46	GT_STATE_PREMATURE_END,
47	GT_STATE_SAVE_FOUND,
48	} gt_state_t;
49
50	typedef struct {
51	appdata_t *appdata;
52
53	GPtrArray *argv;
54	gchar *info;
55	GMutex *update_mutex;
56	GCond *update_cond;
57
58	gt_state_t state;
59
60	GtkWidget *dialog;
61
62	long pid;
63
64	struct log_s {
65	GtkTextBuffer *buffer;
66	GtkWidget *view;
67	} log;
68
69	GtkWidget username, password, *filename;
70	GtkWidget lat, lon, *dst;
71
72	} gt_context_t;
73
74	static void arg_free(gpointer data, gpointer user_data) {
75	if(data) g_free(data);
76	}
77
78	static void context_free(gt_context_t *context) {
79	printf("freeing context\n");
80
81	if(context->info) g_free(context->info);
82
83	g_ptr_array_foreach(context->argv, arg_free, NULL);
84	g_ptr_array_free (context->argv, TRUE);
85
86	g_free(context);
87	}
88
89	static void appendf(struct log_s log, char colname,
90	const char *fmt, ...) {
91	va_list args;
92	va_start( args, fmt );
93	char *buf = g_strdup_vprintf(fmt, args);
94	va_end( args );
95
96	// printf("append: %s", buf);
97
98	GtkTextTag *tag = NULL;
99	if(colname)
100	tag = gtk_text_buffer_create_tag(log->buffer, NULL,
101	"foreground", colname,
102	NULL);
103
104	GtkTextIter end;
105	gtk_text_buffer_get_end_iter(log->buffer, &end);
106	if(tag)
107	gtk_text_buffer_insert_with_tags(log->buffer, &end, buf, -1, tag, NULL);
108	else
109	gtk_text_buffer_insert(log->buffer, &end, buf, -1);
110
111	g_free(buf);
112
113	gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(log->view),
114	&end, 0.0, TRUE, 0, 1.0);
115	}
116
117	// This function receives a requst from a worker thread asking to
118	// update the gui with the required info.
119	gboolean cb_update_job(gt_context_t *context) {
120	if (context->info) {
121	char *color = NULL;
122	if(strstr(context->info, "Saved to ") != NULL) {
123	context->state = GT_STATE_SAVE_FOUND;
124	color = COLOR_OK;
125	}
126
127	if(strcasestr(context->info, "error") != NULL)
128	color = COLOR_ERR;
129
130	appendf(&context->log, color, context->info);
131
132	g_free(context->info);
133	context->info = NULL;
134	}
135
136	// Indicate that the update is done
137	g_mutex_lock(context->update_mutex);
138	g_cond_signal(context->update_cond);
139	g_mutex_unlock(context->update_mutex);
140
141	return FALSE;
142	}
143
144	// A helper function run in the job thread receiving the string that
145	// should be displayed in the textview.
146	void job_add_to_text_viewer(gt_context_t *context,
147	const char *info)
148	{
149	/* TODO: make this cope with format strings */
150	/* TODO: make this cope with colors */
151	context->info = g_strdup(info);
152
153	// Lock mutex to make sure that we will receive the condition signal
154	g_mutex_lock(context->update_mutex);
155	g_idle_add((GSourceFunc)cb_update_job, context);
156
157	// Wait for cb_update_job to tell me that the update is done
158	g_cond_wait(context->update_cond,
159	context->update_mutex);
160	g_mutex_unlock(context->update_mutex);
161	}
162
163	/* custom version of popen to get access to the pid and to be able */
164	/* to slaughter the child process */
165	static FILE gt_popen(char args, const char type, long *tid) {
166	int p[2];
167	FILE *fp;
168
169	if (type != 'r' && type != 'w')
170	return NULL;
171
172	if (pipe(p) < 0)
173	return NULL;
174
175	if ((tid = fork()) > 0) { / then we are the parent */
176	if (*type == 'r') {
177	close(p[1]);
178	fp = fdopen(p[0], type);
179	} else {
180	close(p[0]);
181	fp = fdopen(p[1], type);
182	}
183
184	return fp;
185	} else if (tid == 0) { / we're the child */
186
187	/* make our thread id the process group leader */
188	setpgid(0, 0);
189
190	if (*type == 'r') {
191	fflush(stdout);
192	fflush(stderr);
193	close(1);
194	if (dup(p[1]) < 0)
195	perror("dup of write side of pipe failed");
196	close(2);
197	if (dup(p[1]) < 0)
198	perror("dup of write side of pipe failed");
199	} else {
200	close(0);
201	if (dup(p[0]) < 0)
202	perror("dup of read side of pipe failed");
203	}
204
205	close(p[0]); /* close since we dup()'ed what we needed */
206	close(p[1]);
207
208	execve(args[0], args, NULL);
209
210	printf("gt_popen(): execve(%s) failed!\n", args[0]);
211	} else { /* we're having major problems... */
212	close(p[0]);
213	close(p[1]);
214	printf("gt_popen(): fork() failure!\n");
215	}
216
217	return NULL;
218	}
219
220	// The thread entry point. It will do the job, send the data to the
221	// GUI and self destruct when it is done.
222	static gpointer thread_worker(gt_context_t *context)
223	{
224	FILE *fh;
225	GIOStatus status;
226	GError *error = NULL;
227	gsize length;
228	gsize terminator_pos;
229	gchar *str_return;
230
231	fh = gt_popen((char**)(context->argv->pdata),"r", &context->pid);
232	if(!fh) {
233	appendf(&context->log, COLOR_ERR, _("Failed to run GeoToad"));
234	return NULL;
235	}
236
237	/* switch to line buffered mode */
238	if(setvbuf(fh, NULL, _IOLBF, 0))
239	perror("setvbuf(_IOLBF)");
240
241	GIOChannel *gh = g_io_channel_unix_new(fileno(fh));
242
243	while( (status = g_io_channel_read_line(gh,
244	&str_return,
245	&length,
246	&terminator_pos,
247	&error)) == G_IO_STATUS_NORMAL) {
248	job_add_to_text_viewer(context, str_return);
249	g_free(str_return);
250	}
251
252	g_io_channel_unref(gh);
253	pclose(fh);
254	job_add_to_text_viewer(context, "Job done!");
255
256	g_thread_exit(NULL);
257	context_free(context);
258
259	return NULL;
260	}
261
262
263	static void arg_dsp(gpointer data, gpointer user_data) {
264	gt_context_t context = (gt_context_t)user_data;
265
266	if(data)
267	appendf(&context->log, COLOR_SYSTEM, "%s\n", data);
268	}
269
270	static void run(gt_context_t *context) {
271	GError *error = NULL;
272	char str[8];
273
274	/* build list of arguments to call geotoad */
275	context->argv = g_ptr_array_new();
276	g_ptr_array_add (context->argv, g_strdup_printf(GEOTOAD "a"));
277	g_ascii_dtostr(str, sizeof(str), context->appdata->gt.distance);
278	g_ptr_array_add (context->argv, g_strdup_printf("--distanceMax=%s", str));
279	g_ptr_array_add (context->argv, g_strdup_printf("--output=%s", context->appdata->gt.filename));
280	g_ptr_array_add (context->argv, g_strdup_printf("--password=%s", context->appdata->gt.password));
281	g_ptr_array_add (context->argv, g_strdup_printf("--queryType=coord"));
282	g_ptr_array_add (context->argv, g_strdup_printf("--user=%s", context->appdata->username));
283
284	/* check if we need to add proxy config */
285	char *proxy = NULL;
286	if(context->appdata->proxy && context->appdata->proxy->host) {
287	if(context->appdata->proxy->use_authentication &&
288	context->appdata->proxy->authentication_user &&
289	context->appdata->proxy->authentication_password)
290	proxy = g_strdup_printf("--proxy=http://%s:%s@%s:%d",
291	context->appdata->proxy->authentication_user,
292	context->appdata->proxy->authentication_password,
293	context->appdata->proxy->host,
294	context->appdata->proxy->port);
295	else
296	proxy = g_strdup_printf("--proxy=http://%s:%d",
297	context->appdata->proxy->host,
298	context->appdata->proxy->port);
299
300	g_ptr_array_add (context->argv, proxy);
301	}
302
303	/* convert coordinates into simple ascii format */
304	char n = (context->appdata->gt.lat >= 0)?'N':'S';
305	char e = (context->appdata->gt.lon >= 0)?'E':'W';
306	float lat = fabs(context->appdata->gt.lat);
307	float lon = fabs(context->appdata->gt.lon);
308	float lat_mint, lat_int, lat_frac = modff(lat, &lat_int);
309	float lon_mint, lon_int, lon_frac = modff(lon, &lon_int);
310	lat_frac = modff(lat_frac*60.0, &lat_mint);
311	lon_frac = modff(lon_frac*60.0, &lon_mint);
312
313	g_ptr_array_add (context->argv,
314	g_strdup_printf("%c%02u %02u.%03u %c%03u %02u.%03u",
315	n, (int)lat_int, (int)lat_mint, (int)(lat_frac*1000.0+0.5),
316	e, (int)lon_int, (int)lon_mint, (int)(lon_frac*1000.0+0.5)));
317
318	// g_ptr_array_add (context->argv, g_strdup_printf("2>&1"));
319	g_ptr_array_add (context->argv, NULL);
320
321	/* show all entries */
322	g_ptr_array_foreach(context->argv, arg_dsp, context);
323
324	g_thread_create((GThreadFunc)thread_worker, context, FALSE, &error);
325	if (error) {
326	appendf(&context->log, COLOR_ERR, "Error: %s\n", error->message);
327	g_error_free(error);
328	}
329	}
330
331	/* show text window and display output of running geotoad */
332	static void gui_run(gt_context_t *context) {
333	GtkWidget *dialog = gtk_dialog_new_with_buttons(_("GeoToad - Run"),
334	GTK_WINDOW(context->appdata->window),
335	GTK_DIALOG_MODAL \| GTK_DIALOG_DESTROY_WITH_PARENT,
336	GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
337	NULL);
338
339	gtk_window_set_default_size(GTK_WINDOW(dialog), 640, 480);
340
341	#ifndef USE_PANNABLE_AREA
342	GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL);
343	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
344	GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
345	#else
346	GtkWidget *pannable_area = hildon_pannable_area_new();
347	#endif
348
349	context->log.buffer = gtk_text_buffer_new(NULL);
350
351	#ifndef USE_HILDON_TEXT_VIEW
352	context->log.view = gtk_text_view_new_with_buffer(context->log.buffer);
353	#else
354	context->log.view = hildon_text_view_new();
355	hildon_text_view_set_buffer(HILDON_TEXT_VIEW(context->log.view),
356	context->log.buffer);
357	#endif
358
359	#ifndef USE_PANNABLE_AREA
360	gtk_container_add(GTK_CONTAINER(scrolled_window), context->log.view);
361	gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(scrolled_window),
362	GTK_SHADOW_IN);
363
364	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox),
365	scrolled_window, TRUE, TRUE, 0);
366	#else
367	gtk_container_add(GTK_CONTAINER(pannable_area), context->log.view);
368	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox),
369	pannable_area, TRUE, TRUE, 0);
370	#endif
371
372	gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);
373
374	gtk_widget_show_all(dialog);
375
376	appendf(&context->log, COLOR_SYSTEM, "Running GeoToad\n");
377	run(context);
378
379	gtk_dialog_run(GTK_DIALOG(dialog));
380
381	gtk_widget_destroy(dialog);
382
383	errorf("Fertig!\n");
384
385	}
386
387	static void on_browse(GtkWidget *widget, gpointer data) {
388	gt_context_t context = (gt_context_t)data;
389
390	printf("Browse %p\n", context->dialog);
391
392	#ifdef USE_MAEMO
393	GtkWidget *dialog = hildon_file_chooser_dialog_new(GTK_WINDOW(context->dialog),
394	GTK_FILE_CHOOSER_ACTION_SAVE);
395	#else
396	GtkWidget *dialog = gtk_file_chooser_dialog_new(_("Save GPX file"),
397	GTK_WINDOW(context->dialog),
398	GTK_FILE_CHOOSER_ACTION_SAVE,
399	GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
400	GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
401	NULL);
402	#endif
403
404	printf("set filename <%s>\n", context->appdata->gt.filename);
405
406	if(!g_file_test(context->appdata->gt.filename, G_FILE_TEST_EXISTS)) {
407	char *last_sep = strrchr(context->appdata->gt.filename, '/');
408	if(last_sep) {
409	*last_sep = 0; // seperate path from file
410
411	/* the user just created a new document */
412	gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog),
413	context->appdata->gt.filename);
414	gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), last_sep+1);
415
416	/* restore full filename */
417	*last_sep = '/';
418	}
419	} else
420	gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(dialog),
421	context->appdata->gt.filename);
422
423	if (gtk_dialog_run (GTK_DIALOG(dialog)) == GTK_FM_OK) {
424	gchar *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
425	gtk_label_set_text(GTK_LABEL(context->filename), name);
426	}
427
428	gtk_widget_destroy (dialog);
429	}
430
431	static gboolean gui_setup(gt_context_t *context) {
432	appdata_t *appdata = context->appdata;
433	gboolean ok = FALSE;
434
435	/* if no filename has been setup yet, create one */
436	if(!appdata->gt.filename && appdata->path) {
437	printf("creating path\n");
438	appdata->gt.filename =
439	g_strdup_printf("%s/gtoad.gpx", appdata->path);
440	}
441
442	context->dialog = gtk_dialog_new_with_buttons(_("GeoToad - Setup"),
443	GTK_WINDOW(appdata->window),
444	GTK_DIALOG_MODAL \| GTK_DIALOG_DESTROY_WITH_PARENT,
445	GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
446	GTK_STOCK_OK, GTK_RESPONSE_OK,
447	NULL);
448
449	/* ------------------- Coordinates ------------------------- */
450	GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
451
452	GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
453	gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Position:")));
454	gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Distance:")));
455	gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
456
457	/* setup default positions */
458	pos_t *refpos = get_pos(appdata);
459	if((isnan(appdata->gt.lat) \|\| isnan(appdata->gt.lat)) && refpos) {
460	appdata->gt.lat = refpos->lat;
461	appdata->gt.lon = refpos->lon;
462	}
463
464	vbox = gtk_vbox_new(FALSE, 0);
465	GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
466	context->lat = lat_entry_new(appdata->gt.lat);
467	gtk_box_pack_start_defaults(GTK_BOX(ihbox), context->lat);
468	context->lon = lon_entry_new(appdata->gt.lon);
469	gtk_box_pack_start_defaults(GTK_BOX(ihbox), context->lon);
470	gtk_box_pack_start_defaults(GTK_BOX(vbox), ihbox);
471	float dst = appdata->gt.distance; // distance is given in kilometers
472	if(appdata->imperial) dst /= 1.609344;
473	context->dst = dist_entry_new(dst, appdata->imperial);
474	gtk_box_pack_start_defaults(GTK_BOX(vbox), context->dst);
475	gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);
476
477	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);
478
479	/* ------------------- file name ------------------------- */
480	hbox = gtk_hbox_new(FALSE, 0);
481
482	context->filename = gtk_label_new(appdata->gt.filename);
483	gtk_misc_set_alignment(GTK_MISC(context->filename), 0.f, 0.5f);
484	gtk_label_set_ellipsize(GTK_LABEL(context->filename), PANGO_ELLIPSIZE_MIDDLE);
485	gtk_box_pack_start_defaults(GTK_BOX(hbox), context->filename);
486
487	GtkWidget *button = gtk_button_new_with_label(_("Browse"));
488	#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
489	hildon_gtk_widget_set_theme_size(button,
490	(HILDON_SIZE_FINGER_HEIGHT \| HILDON_SIZE_AUTO_WIDTH));
491	#endif
492	gtk_signal_connect(GTK_OBJECT(button), "clicked",
493	GTK_SIGNAL_FUNC(on_browse), context);
494	gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
495
496	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);
497
498
499	/* ------------------- Username/Password ------------------------- */
500	hbox = gtk_hbox_new(FALSE, 0);
501	vbox = gtk_vbox_new(FALSE, 0);
502	gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Username:")));
503	gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Password:")));
504	gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
505
506	vbox = gtk_vbox_new(FALSE, 0);
507	#ifndef FREMANTLE
508	context->username = gtk_entry_new();
509	context->password = gtk_entry_new();
510	#else
511	context->username = hildon_entry_new(HILDON_SIZE_AUTO);
512	hildon_gtk_entry_set_input_mode(GTK_ENTRY(context->username),
513	HILDON_GTK_INPUT_MODE_FULL);
514	context->password = hildon_entry_new(HILDON_SIZE_AUTO);
515	hildon_gtk_entry_set_input_mode(GTK_ENTRY(context->password),
516	HILDON_GTK_INPUT_MODE_FULL);
517	#endif
518	gtk_entry_set_visibility(GTK_ENTRY(context->password), FALSE);
519
520	/* set saved defaults */
521	if(appdata->username)
522	gtk_entry_set_text(GTK_ENTRY(context->username),
523	appdata->username);
524
525	if(appdata->gt.password)
526	gtk_entry_set_text(GTK_ENTRY(context->password),
527	appdata->gt.password);
528
529	gtk_box_pack_start_defaults(GTK_BOX(vbox), context->username);
530	gtk_box_pack_start_defaults(GTK_BOX(vbox), context->password);
531	gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);
532
533	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);
534
535	gtk_dialog_set_default_response(GTK_DIALOG(context->dialog), GTK_RESPONSE_OK);
536
537	gtk_widget_show_all(context->dialog);
538
539	if(gtk_dialog_run(GTK_DIALOG(context->dialog)) == GTK_RESPONSE_OK) {
540
541	/* parse coordinates */
542	appdata->gt.lat = lat_get(context->lat);
543	appdata->gt.lon = lon_get(context->lon);
544
545	/* save values */
546	if(appdata->username) g_free(appdata->username);
547	appdata->username =
548	g_strdup(gtk_entry_get_text(GTK_ENTRY(context->username)));
549
550	if(appdata->gt.password) g_free(appdata->gt.password);
551	appdata->gt.password =
552	g_strdup(gtk_entry_get_text(GTK_ENTRY(context->password)));
553
554	if(appdata->gt.filename) g_free(appdata->gt.filename);
555	appdata->gt.filename =
556	g_strdup(gtk_label_get_text(GTK_LABEL(context->filename)));
557
558	/* get distance in kilometers */
559	appdata->gt.distance = dist_get(context->dst, FALSE);
560
561
562	/* check for valid entries */
563	if(isnan(appdata->gt.lat) \|\| isnan(appdata->gt.lon) \|\|
564	isnan(appdata->gt.distance) \|\| !appdata->gt.filename \|\|
565	!appdata->username \|\| !appdata->gt.password)
566	errorf(_("GeoToad setup not complete"));
567	else
568	ok = TRUE;
569	}
570
571	gtk_widget_destroy(context->dialog);
572
573	return ok;
574	}
575
576	void geotoad(appdata_t *appdata) {
577	if(!geotoad_available()) {
578	errorf(_("GeoToad is not installed on this device.\n"
579	"You need to install it in order to be able to use it."));
580	return;
581	}
582
583	gt_context_t *context = g_new0(gt_context_t, 1);
584	context->appdata = appdata;
585
586	context->update_mutex = g_mutex_new();
587	context->update_cond = g_cond_new();
588	// context->mutex_to_run = mutex_to_run;
589
590	printf("geoToad\n");
591
592	if(gui_setup(context))
593	gui_run(context);
594	}
595
596	gboolean geotoad_available(void) {
597	/* before doing anything make sure geotoad is installed */
598	return g_file_test(GEOTOAD, G_FILE_TEST_IS_EXECUTABLE);
599	}
600
601