nana::drawerbase::picture::content_measurer Class Reference

Inheritance diagram for nana::drawerbase::picture::content_measurer:

Public Member Functions
	content_measurer (implement *impl)
std::optional< size >	measure (graph_reference, unsigned limit_pixels, bool) const override
	Measures content. More...
size	extension () const override
	Returns the extension to the size of widget from content extent. More...
Public Member Functions inherited from nana::dev::widget_content_measurer_interface
virtual	~widget_content_measurer_interface ()=default

Additional Inherited Members
Public Types inherited from nana::dev::widget_content_measurer_interface
using	graph_reference = paint::graphics &

Constructor & Destructor Documentation

nana::drawerbase::picture::content_measurer::content_measurer ( implement *  impl )

inline

Member Function Documentation

size nana::drawerbase::picture::content_measurer::extension ( ) const

inlineoverridevirtual

Returns the extension to the size of widget from content extent.

Returns

the width and height of extension to the widget size.

Implements nana::dev::widget_content_measurer_interface.

std::optional<size> nana::drawerbase::picture::content_measurer::measure ( graph_reference  graph, unsigned  limit_pixels, bool  limit_width  ) const

inlineoverridevirtual

Measures content.

Parameters

graph	The graphics for the operation.
limit_pixels	The number of pixels of the limited edge. If this parameter is zero, it is ignored.
limit_width	True if limits the width, false if limits the height.

Returns

the size of content.

Implements nana::dev::widget_content_measurer_interface.