BaseWidgetValue
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template<typename T>
struct Ref - #include <BaseWidgetValue.h>
A wrapper for reference values that provides value semantics.
This struct allows widgets to work with references while maintaining a consistent interface with value types.
- Template Parameters:
T – The type being referenced (must be a non-reference type)
Public Functions
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inline Ref(T &value)
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inline bool operator==(T const &other) const noexcept
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inline bool operator!=(T const &other) const noexcept
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inline bool operator>(T const &other) const noexcept
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inline bool operator<(T const &other) const noexcept
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inline bool operator>=(T const &other) const noexcept
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inline bool operator<=(T const &other) const noexcept
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inline operator T() const noexcept
Public Members
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T &value
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template<typename T>
class BaseWidgetValue : public BaseWidget - #include <BaseWidgetValue.h>
Base class for widget holding some value.
See also
- Template Parameters:
T – The type of value this widget holds
Subclassed by WidgetBool< V >, WidgetList< T, V >, WidgetRange< T, V >
Public Functions
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inline BaseWidgetValue(const T &value, const char *format, const uint8_t cursorOffset = 0, void (*callback)(const T&) = nullptr)
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inline const T &getValue() const
Retrieve current value.
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inline virtual void setValue(const T &newValue)
Sets the value.
Note
You need to call
LcdMenu::refreshafter this method to see the changes.- Parameters:
newValue – The value to set.
Protected Functions
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inline virtual uint8_t draw(char *buffer, const uint8_t start) override
Draw the widget into specified buffer.
- Parameters:
buffer – the buffer where widget will be drawn
start – the index where to start drawing in the buffer
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virtual bool process(LcdMenu *menu, unsigned char command) override = 0
Process a command for this widget.
- Parameters:
menu – Pointer to the menu instance
command – The command to process
- Returns:
true if the command was handled, false otherwise