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Status Label Helper: provide different default value getters based on base type of source widget

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This commit is contained in:
Charles Dang 2016-09-08 20:59:41 +11:00
parent 39bd46accc
commit 640a3ff46d
1 changed files with 24 additions and 1 deletions
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25
src/gui/widgets/status_label_helper.hpp
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@ -14,13 +14,36 @@
#ifndef GUI_WIDGETS_STATUS_LABEL_HELPER_HPP_INCLUDED
#define GUI_WIDGETS_STATUS_LABEL_HELPER_HPP_INCLUDED
#include "gettext.hpp"
#include "gui/core/event/dispatcher.hpp"
#include "gui/widgets/control.hpp"
#include "gui/widgets/integer_selector.hpp"
#include "gui/widgets/selectable.hpp"
#include "utils/functional.hpp"
namespace gui2 {
/**
* Default value getter for selectable widgets (like toggle buttons)
*/
template<typename T>
static inline typename std::enable_if<std::is_base_of<tselectable_, T>::value, std::string>::type
default_value_getter(T& w)
{
return w.get_value_bool() ? _("yes") : _("no");
}
/**
* Default value getter for integer-based widgets (like sliders)
*/
template<typename T>
static inline typename std::enable_if<std::is_base_of<tinteger_selector_, T>::value, std::string>::type
default_value_getter(T& w)
{
return w.get_value_label();
}
/**
* 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
@ -31,7 +54,7 @@ namespace gui2 {
*/
template<typename W>
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::function<std::string(W&)> value_getter = default_value_getter<W>,
const std::string& label_id = "")
{
const std::string label_id_ = label_id.empty() ? id + "_label" : label_id;