// Returns on of the widget's options.
SelectOption* WidgetDropDown::GetOption(int index)
{
if (index < 0 ||
index >= GetNumOptions())
return NULL;
return &options[index];
}
//gets an option name given its index into the list of options
const char* CCommandLineParser::GetOptionName(uint32 nIndex) const
{
//make sure it is in range
if(nIndex < GetNumOptions())
{
//get the option's name
return &m_pszCommandLine[m_Options[nIndex].m_nPos];
}
//out of bounds
return NULL;
}
//finds an option given the name, and will return a pointer to it. Will
//return NULL if no options match
const CCommandLineParser::COption* CCommandLineParser::GetOption(const char* pszName) const
{
for(uint32 nCurrOpt = 0; nCurrOpt < GetNumOptions(); nCurrOpt++)
{
if(stricmp(&m_pszCommandLine[m_Options[nCurrOpt].m_nPos], pszName) == 0)
{
//match found
return &(m_Options[nCurrOpt]);
}
}
//no match found
return NULL;
}
// Builds the option list from the data source.
void ElementFormControlDataSelect::BuildOptions()
{
widget->ClearOptions();
if (data_source == NULL)
return;
// Store the old selection value and index. These will be used to restore the selection to the
// most appropriate option after the options have been rebuilt.
Rocket::Core::String old_value = GetValue();
int old_selection = GetSelection();
Rocket::Core::String fields_attribute = GetAttribute<Rocket::Core::String>("fields", "");
Rocket::Core::String valuefield_attribute = GetAttribute<Rocket::Core::String>("valuefield", "");
Rocket::Core::String data_formatter_attribute = GetAttribute<Rocket::Core::String>("formatter", "");
DataFormatter* data_formatter = NULL;
// Process the attributes.
if (fields_attribute.Empty())
{
Core::Log::Message(Rocket::Core::Log::LT_ERROR, "DataQuery failed, no fields specified for %s.", GetTagName().CString());
return;
}
if (valuefield_attribute.Empty())
{
valuefield_attribute = fields_attribute.Substring(0, fields_attribute.Find(","));
}
if (!data_formatter_attribute.Empty())
{
data_formatter = DataFormatter::GetDataFormatter(data_formatter_attribute);
if (!data_formatter)
Core::Log::Message(Rocket::Core::Log::LT_WARNING, "Unable to find data formatter named '%s', formatting skipped.", data_formatter_attribute.CString());
}
// Build a list of attributes
Rocket::Core::String fields(valuefield_attribute);
fields += ",";
fields += fields_attribute;
DataQuery query(data_source, data_table, fields);
while (query.NextRow())
{
Rocket::Core::StringList fields;
Rocket::Core::String value = query.Get<Rocket::Core::String>(0, "");
for (size_t i = 1; i < query.GetNumFields(); ++i)
fields.push_back(query.Get< Rocket::Core::String>(i, ""));
Rocket::Core::String formatted("");
if (fields.size() > 0)
formatted = fields[0];
if (data_formatter)
data_formatter->FormatData(formatted, fields);
// Add the data as an option.
widget->AddOption(formatted, value, -1, false);
}
// If an option was selected before, attempt to restore the selection to it.
if (old_selection > -1)
{
// Try to find a selection with the same value as the previous one.
for (int i = 0; i < GetNumOptions(); ++i)
{
SelectOption* option = GetOption(i);
if (option->GetValue() == old_value)
{
widget->SetSelection(i, true);
return;
}
}
// Failed to find an option with the same value. Attempt to at least set the same index.
int new_selection = Rocket::Core::Math::Clamp(old_selection, 0, GetNumOptions() - 1);
if (GetNumOptions() == 0)
new_selection = -1;
widget->SetSelection(new_selection, true);
}
}