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Added two small features to the status label helper

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* Made the first argument twidget instead of twindow to allow passing grids
* Added a 4th argument for label id. Defaults to id + "_label"
This commit is contained in:
Charles Dang 2016-09-07 10:51:17 +11:00
parent ba81174ade
commit df51776780
1 changed files with 12 additions and 9 deletions
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21
src/gui/widgets/status_label_helper.hpp
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@ -22,19 +22,22 @@
namespace gui2 {
/**
* Creates a bound status label that will reflect the state of a widget. The initial label value
* is set here, and then again any time the widget is modified. A function is also returned that
* can be called to update the field manually.
* Creates a bound status label that will reflect the label state of a widget. The initial label
* value is set here, and then again any time the widget is modified. A function is also returned
* that can be called to update the label manually.
*
* Currently, it only works on types that have a get_value() member and fire a MODIFIED event,
* but could be changed in the future.
* This relies on hooking into the NOTIFY_MODIFIED event, so can only be used with widgets that fire
* that event.
*/
template<typename W>
std::function<void()> bind_status_label(twindow& window, const std::string& id,
std::function<std::string(W&)> value_getter = [](W& w)->std::string { return std::to_string(w.get_value()); })
std::function<void()> bind_status_label(twidget& find_in, const std::string& id,
const std::function<std::string(W&)> value_getter = [](W& w)->std::string { return std::to_string(w.get_value()); },
const std::string& label_id = "")
{
W& source = find_widget<W>(&window, id, false);
tcontrol& label = find_widget<tcontrol>(&window, id + "_label", false);
const std::string label_id_ = label_id.empty() ? id + "_label" : label_id;
W& source = find_widget<W>(&find_in, id, false);
tcontrol& label = find_widget<tcontrol>(&find_in, label_id_, false);
const auto update_label = [&, value_getter]() {
const std::string value = value_getter(source);