Preferences::Preferences(const char* name, const char* signature, bool doSave)
: BMessage('Pref'), BLocker("Preferences", true),
fSavePreferences(doSave)
{
fNewPreferences = false;
fSettingsFile = 0;
BPath prefpath;
fName = strdup(name);
if (signature)
fSignature = strdup(signature);
else
fSignature = NULL;
if (find_directory(B_USER_SETTINGS_DIRECTORY, &prefpath) == B_OK) {
BDirectory prefdir(prefpath.Path());
BEntry entry;
prefdir.FindEntry(fName, &entry);
BFile file(&entry, B_READ_ONLY);
if (file.InitCheck() == B_OK)
Unflatten(&file);
else
fNewPreferences = true;
}
}
Preferences::~Preferences()
{
if (fSavePreferences) {
BFile file;
status_t set = B_ERROR;
if (fSettingsFile)
file.SetTo(fSettingsFile, B_READ_WRITE | B_CREATE_FILE | B_ERASE_FILE);
else {
BPath prefpath;
if (find_directory(B_USER_SETTINGS_DIRECTORY, &prefpath, true) == B_OK) {
BDirectory prefdir(prefpath.Path());
set = prefdir.CreateFile(fName, &file, false);
}
}
if (file.InitCheck () == B_OK) {
Flatten(&file);
if (fSignature) {
file.WriteAttr("BEOS:TYPE", B_MIME_STRING_TYPE, 0, fSignature,
strlen(fSignature) + 1);
}
} else {
// implement saving somewhere else!
BString error;
snprintf(error.LockBuffer(256), 256,
B_TRANSLATE("Your setting file could not be saved!\n(%s)"),
strerror(file.InitCheck()));
error.UnlockBuffer();
BAlert *alert = new BAlert(B_TRANSLATE("Error saving file"),
error.String(), B_TRANSLATE("Damned!"), NULL, NULL,
B_WIDTH_AS_USUAL, B_STOP_ALERT);
alert->SetShortcut(0, B_ESCAPE);
alert->Go();
}
}
delete fSettingsFile;
free(fName);
free(fSignature);
}
