Replaced the g_date_strftime function by a strftime solution

[gps-tracker] / gps-tracker.c

diff --git a/gps-tracker.c b/gps-tracker.c
index 9b4746f..09ffc9f 100644 (file)
--- a/gps-tracker.c
+++ b/gps-tracker.c
@@ -13,15 +13,25 @@ typedef struct {
     
     GtkWidget * main_vbox, *btn_hbox;
     GtkWidget *status_label;
-    GtkButton *start_button;
+    GtkButton *start_stop_button, *save_button;
+    gboolean tracking_is_on;
 } AppData;
 
 static gchar * interface_file_chooser (AppData * appdata, GtkFileChooserAction action)
 {
     GtkWidget *dialog;
     gchar *filename = NULL;
+    gchar save_fname[256];
+    time_t t;
+    struct tm *tmp;
     
+    t = time(NULL);
+    tmp = localtime(&t);
+    strftime(save_fname, sizeof(save_fname), "gps-tracker-%F-%H-%M.gpx", tmp);
     dialog = hildon_file_chooser_dialog_new (GTK_WINDOW (appdata->window), action);
+    gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER (dialog), save_fname);
+    g_snprintf(save_fname, sizeof(save_fname), "%s" G_DIR_SEPARATOR_S "MyDocs", g_get_home_dir());
+    gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), save_fname);
     gtk_widget_show_all (GTK_WIDGET (dialog));
 
     if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK) {
@@ -32,28 +42,39 @@ static gchar * interface_file_chooser (AppData * appdata, GtkFileChooserAction a
     return filename;
 }
 
+static void cb_start_stop (GtkWidget * w, AppData * data)
+{
+  data->tracking_is_on = !data->tracking_is_on;
+  if(data->tracking_is_on) {
+    hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Tracking started");
+    gtk_button_set_label (data->start_stop_button, "Stop");
+  }
+  else {
+    gtk_button_set_label (data->start_stop_button, "Start");
+    hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Tracking stopped");
+  }
+}
+
 static void cb_file_save (GtkWidget * w, AppData * data)
 {
     gchar *filename = NULL;
     filename = interface_file_chooser (data, GTK_FILE_CHOOSER_ACTION_SAVE);
 
-    if (filename == NULL) {
-        filename = "NULL";
+    if (filename) {
+        //FILE * f = fopen (filename, "w");
+        //fprintf (f, "This file was generated by Hildon File Chooser example.");
+        //fclose (f);
+        g_print ("File saved as %s\n", filename);
+        hildon_banner_show_information(GTK_WIDGET(data->window), NULL, filename);
     }
-    else {
-        FILE * f = fopen (filename, "w");
-        fprintf (f, "This file was generated by Hildon File Chooser example.");
-        fclose (f);
-    }
-
-    g_print ("File saved as %s\n", filename);
+    g_free(filename);
 }
 
 static void
 on_gps_device_changed (LocationGPSDevice *device, gpointer data)
 {
   AppData *app_data = data;
-  GtkLabel *info = (GtkLabel*)data;
+  GtkLabel *info = (GtkLabel*)app_data->status_label;
   GString *msg;
        if (!device)
                return;
@@ -170,9 +191,12 @@ int main (int argc, char **argv)
        /* Set a title to the button*/
        hildon_button_set_title (HILDON_BUTTON (picker_button), "Pick a date");
 
-  data->start_button = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_THUMB_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
-  gtk_button_set_label (data->start_button, "Start");
-  gtk_box_pack_start(GTK_BOX(data->btn_hbox), GTK_WIDGET(data->start_button), FALSE, FALSE, 8);
+  data->start_stop_button = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_THUMB_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
+  data->save_button = GTK_BUTTON (hildon_gtk_button_new (HILDON_SIZE_THUMB_HEIGHT | HILDON_SIZE_HALFSCREEN_WIDTH));
+  gtk_button_set_label (data->start_stop_button, "Start");
+  gtk_button_set_label (data->save_button, "Save");
+  gtk_box_pack_start(GTK_BOX(data->btn_hbox), GTK_WIDGET(data->start_stop_button), FALSE, FALSE, 8);
+  gtk_box_pack_start(GTK_BOX(data->btn_hbox), GTK_WIDGET(data->save_button), FALSE, FALSE, 8);
   gtk_box_pack_start(GTK_BOX(data->main_vbox), GTK_WIDGET(data->btn_hbox), FALSE, FALSE, 0);
   gtk_box_pack_start(GTK_BOX(data->main_vbox), GTK_WIDGET(picker_button), FALSE, FALSE, 0);
   data->status_label = gtk_label_new("Hier kommt der Status hin\nUnd hier ist die 2. Zeile");
@@ -180,11 +204,13 @@ int main (int argc, char **argv)
        /* Add vbox to main window */
        gtk_container_add (GTK_CONTAINER (data->window), GTK_WIDGET(data->main_vbox));
 
+  g_signal_connect (G_OBJECT (data->save_button), "clicked", G_CALLBACK (cb_file_save), data);
+  g_signal_connect (G_OBJECT (data->start_stop_button), "clicked", G_CALLBACK (cb_start_stop), data);
        g_signal_connect (G_OBJECT (data->window), "destroy",
                        G_CALLBACK (gtk_main_quit), NULL);
 
        control = location_gpsd_control_get_default ();
-  hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Hi there!");
+  //hildon_banner_show_information(GTK_WIDGET(data->window), NULL, "Hi there!");
        location_gpsd_control_start (control);
 
        /*