KIGFX::AUTOMATIC_FIT Class Reference

What the last zoom to fit showed, so a canvas that changes size can fit it again. More...

#include <automatic_fit.h>

Public Member Functions
void	Record (const BOX2I &aBox, std::optional< double > aMarginScale, double aScale, const VECTOR2D &aCenter)
	Note a fit of aBox that left the view at aScale and aCenter.
void	Clear ()
bool	Holds (double aScale, const VECTOR2D &aCenter) const
	True while a view at aScale and aCenter shows exactly what the last fit left.
const BOX2I &	GetBox () const
std::optional< double >	GetMarginScale () const

Private Attributes
bool	m_valid = false
BOX2I	m_box
std::optional< double >	m_marginScale
double	m_scale = 0.0
VECTOR2D	m_center

Detailed Description

What the last zoom to fit showed, so a canvas that changes size can fit it again.

The view counts as still at its automatic fit while its scale and centre are exactly those the fit left. Any zoom or pan, by the user or by a tool, changes one of them and so ends it without having to be reported here.

Definition at line 38 of file automatic_fit.h.

Member Function Documentation

Clear()

void KIGFX::AUTOMATIC_FIT::Clear ( )

inline

Definition at line 51 of file automatic_fit.h.

References m_valid.

GetBox()

const BOX2I & KIGFX::AUTOMATIC_FIT::GetBox ( ) const

inline

Definition at line 59 of file automatic_fit.h.

References m_box.

GetMarginScale()

std::optional< double > KIGFX::AUTOMATIC_FIT::GetMarginScale ( ) const

inline

Definition at line 61 of file automatic_fit.h.

References m_marginScale.

Holds()

bool KIGFX::AUTOMATIC_FIT::Holds ( double aScale, const VECTOR2D & aCenter ) const

inline

True while a view at aScale and aCenter shows exactly what the last fit left.

Definition at line 54 of file automatic_fit.h.

References m_center, m_scale, and m_valid.

Record()

void KIGFX::AUTOMATIC_FIT::Record ( const BOX2I & aBox, std::optional< double > aMarginScale, double aScale, const VECTOR2D & aCenter )

inline

Note a fit of aBox that left the view at aScale and aCenter.

Definition at line 42 of file automatic_fit.h.

References m_box, m_center, m_marginScale, m_scale, and m_valid.

Member Data Documentation

m_box

BOX2I KIGFX::AUTOMATIC_FIT::m_box

private

Definition at line 65 of file automatic_fit.h.

Referenced by GetBox(), and Record().

m_center

VECTOR2D KIGFX::AUTOMATIC_FIT::m_center

private

Definition at line 68 of file automatic_fit.h.

Referenced by Holds(), and Record().

m_marginScale

std::optional<double> KIGFX::AUTOMATIC_FIT::m_marginScale

private

Definition at line 66 of file automatic_fit.h.

Referenced by GetMarginScale(), and Record().

m_scale

double KIGFX::AUTOMATIC_FIT::m_scale = 0.0

private

Definition at line 67 of file automatic_fit.h.

Referenced by Holds(), and Record().

m_valid

bool KIGFX::AUTOMATIC_FIT::m_valid = false

private

Definition at line 64 of file automatic_fit.h.

Referenced by Clear(), Holds(), and Record().

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The documentation for this class was generated from the following file:

• automatic_fit.h