filter_result
AutoTextControlFilter::Filter(BMessage* msg, BHandler** target)
{
int32 rawchar, mod;
msg->FindInt32("raw_char", &rawchar);
msg->FindInt32("modifiers", &mod);
BView* view = dynamic_cast<BView*>(*target);
if (view != NULL || view->Name() != NULL && strcmp("_input_", view->Name()))
return B_DISPATCH_MESSAGE;
AutoTextControl* text = dynamic_cast<AutoTextControl*>(view->Parent());
if (!text || text != fBox)
return B_DISPATCH_MESSAGE;
fCurrentMessage = msg;
filter_result result = KeyFilter(rawchar, mod);
fCurrentMessage = NULL;
if (fBox->fCharLimit && result == B_DISPATCH_MESSAGE) {
// See to it that we still allow shortcut keys
if (mod & B_COMMAND_KEY)
return B_DISPATCH_MESSAGE;
// We don't use strlen() because it is not UTF-8 aware, which can
// affect how many characters can be typed.
if (isprint(rawchar) &&
(uint32)BString(text->Text()).CountChars() == text->fCharLimit)
return B_SKIP_MESSAGE;
}
return result;
}
void
EngineBase::gen_sql_delete(String &sql, TypeCodes &type_codes_out,
const Table &table, const SqlGeneratorOptions &options)
{
if (!table.pk_fields().size())
throw BadSQLOperation(_T("cannot build update statement: no key in table"));
SqlGeneratorContext ctx;
String sql_query = _T("DELETE FROM ") + table.name();
TypeCodes type_codes;
Key sample_key;
table.mk_sample_key(type_codes, sample_key);
sql_query += _T(" WHERE ")
+ KeyFilter(sample_key).generate_sql(options, &ctx);
type_codes_out.swap(type_codes);
str_swap(sql, sql_query);
}
void
EngineBase::gen_sql_update(String &sql, TypeCodes &type_codes_out,
ParamNums ¶m_nums_out, const Table &table,
const SqlGeneratorOptions &options)
{
if (!table.pk_fields().size())
throw BadSQLOperation(_T("cannot build update statement: no key in table"));
SqlGeneratorContext ctx;
String sql_query = _T("UPDATE ") + table.name() + _T(" SET ");
TypeCodes type_codes;
type_codes.reserve(table.size());
ParamNums param_nums;
size_t i;
for (i = 0; i < table.size(); ++i) {
const Column &col = table[i];
if (!col.is_pk() && !col.is_ro()) {
if (!type_codes.empty())
sql_query += _T(", ");
sql_query += col.name() + _T(" = ");
++ctx.counter_;
if (options.numbered_params_)
sql_query += _T(":") + to_string(ctx.counter_);
else
sql_query += _T("?");
param_nums[col.name()] = type_codes.size();
type_codes.push_back(col.type());
}
}
for (i = 0; i < table.pk_fields().size(); ++i) {
const String &col_name = table.pk_fields()[i];
param_nums[col_name] = type_codes.size();
type_codes.push_back(table[col_name].type());
}
type_codes_out.swap(type_codes);
param_nums_out.swap(param_nums);
Key sample_key;
table.mk_sample_key(type_codes, sample_key);
sql_query += _T(" WHERE ")
+ KeyFilter(sample_key).generate_sql(options, &ctx);
str_swap(sql, sql_query);
}
