static void
add_metadata(gpointer hkey,
gpointer hvalue,
gpointer user_data)
{
gchar *key = (gchar*)hkey;
NanoscopeValue *val = (NanoscopeValue*)hvalue;
gchar *v, *w;
if (gwy_strequal(key, "#self")
|| !val->hard_value_str
|| !val->hard_value_str[0])
return;
if (key[0] == '@')
key++;
v = g_strdup(val->hard_value_str);
if (strchr(v, '\272')) {
w = gwy_strreplace(v, "\272", "deg", -1);
g_free(v);
v = w;
}
if (strchr(v, '~')) {
w = gwy_strreplace(v, "~", "µ", -1);
g_free(v);
v = w;
}
gwy_container_set_string_by_name(GWY_CONTAINER(user_data), key, v);
}
/**
* gwy_save_auxiliary_with_callback:
* @title: File chooser dialog title.
* @parent: Parent window for the file chooser dialog (may be %NULL).
* @create: Function to create the data (it will not be called if the user
* cancels the saving).
* @destroy: Function to destroy the data (if will be called iff @create will
* be called), it may be %NULL.
* @user_data: User data passed to @create and @destroy.
*
* Saves a report or other auxiliary data to a user specified file.
*
* Returns: %TRUE if the data was save, %FALSE if it was not saved for any
* reason (I/O error, cancellation, overwrite cancellation, etc.).
*
* Since: 2.3
**/
gboolean
gwy_save_auxiliary_with_callback(const gchar *title,
GtkWindow *parent,
GwySaveAuxiliaryCreate create,
GwySaveAuxiliaryDestroy destroy,
gpointer user_data)
{
gchar *data;
gchar *filename_sys, *filename_utf8;
gssize data_len;
gint myerrno;
GtkWidget *dialog, *chooser;
gint response;
FILE *fh;
g_return_val_if_fail(!parent || GTK_IS_WINDOW(parent), FALSE);
g_return_val_if_fail(create, FALSE);
chooser = gtk_file_chooser_dialog_new(title, parent,
GTK_FILE_CHOOSER_ACTION_SAVE,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_SAVE, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response(GTK_DIALOG(chooser), GTK_RESPONSE_OK);
gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(chooser),
gwy_app_get_current_directory());
response = gtk_dialog_run(GTK_DIALOG(chooser));
filename_sys = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(chooser));
if (!gwy_app_file_confirm_overwrite(chooser))
response = GTK_RESPONSE_CANCEL;
gtk_widget_destroy(chooser);
if (!filename_sys || response != GTK_RESPONSE_OK) {
g_free(filename_sys);
return FALSE;
}
data_len = -1;
data = create(user_data, &data_len);
g_return_val_if_fail(data, FALSE);
if ((fh = g_fopen(filename_sys, "wb"))) {
gchar *mydata = NULL;
/* Write everything in binary and just convert the EOLs by manually.
* This seems to actually work as we want. */
if (data_len <= 0) {
#ifdef G_OS_WIN32
mydata = gwy_strreplace(data, "\n", "\r\n", (gsize)-1);
data_len = strlen(mydata);
#else
data_len = strlen(data);
#endif
}
if (fwrite(mydata ? mydata : data, data_len, 1, fh) != 1) {
myerrno = errno;
/* This is just best-effort clean-up */
fclose(fh);
g_unlink(filename_sys);
fh = NULL;
}
else
myerrno = 0; /* GCC */
g_free(mydata);
}
else
myerrno = errno;
if (destroy)
destroy(data, user_data);
if (fh) {
/* Everything went all right. */
fclose(fh);
gwy_app_set_current_directory(filename_sys);
g_free(filename_sys);
return TRUE;
}
filename_utf8 = g_filename_to_utf8(filename_sys, -1, NULL, NULL, NULL);
dialog = gtk_message_dialog_new(parent, 0, GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
_("Saving of `%s' failed"),
filename_utf8);
g_free(filename_sys);
g_free(filename_utf8);
gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog),
_("Cannot write to file: %s."),
g_strerror(myerrno));
gtk_widget_show_all(dialog);
gtk_dialog_run(GTK_DIALOG(dialog));
gtk_widget_destroy(dialog);
return FALSE;
}