osmscout::LabelMeasurementKey Class Reference

Key of a label measurement: the arguments a backend's Layout() call receives and the parameters that backend's Layout() reads on top of them. More...

#include <LabelLayouter.h>

Public Member Functions
bool	operator== (const LabelMeasurementKey &other) const

Public Attributes
bool	contourLabel {false}
bool	enableWrapping {false}
double	fontSize {0.0}
bool	labelLineFitToArea {false}
double	labelLineFitToWidth {0.0}
size_t	labelLineMaxCharCount {0}
size_t	labelLineMinCharCount {0}
double	objectWidth {0.0}
std::string	text

Detailed Description

Key of a label measurement: the arguments a backend's Layout() call receives and the parameters that backend's Layout() reads on top of them.

Two labels with the same key measure the same, so the second one can reuse the first measurement.

The parameters of the line wrapping (LabelLineMinCharCount, LabelLineMaxCharCount, LabelLineFitToArea, LabelLineFitToWidth) are no argument of Layout(), but the backends that wrap a label ask MapPainter::GetProposedLabelWidth for the width they wrap with, and that call reads them. A frame that sees them changed therefore measures again.

Member Function Documentation

operator==()

bool osmscout::LabelMeasurementKey::operator== ( const LabelMeasurementKey &  other ) const

inline

References contourLabel, enableWrapping, fontSize, labelLineFitToArea, labelLineFitToWidth, labelLineMaxCharCount, labelLineMinCharCount, objectWidth, and text.

Member Data Documentation

contourLabel

bool osmscout::LabelMeasurementKey::contourLabel {false}

Referenced by osmscout::LabelMeasurementKeyHash::operator()(), and operator==().

enableWrapping

bool osmscout::LabelMeasurementKey::enableWrapping {false}

Referenced by osmscout::LabelMeasurementKeyHash::operator()(), and operator==().

fontSize

double osmscout::LabelMeasurementKey::fontSize {0.0}

Referenced by osmscout::LabelMeasurementKeyHash::operator()(), and operator==().

labelLineFitToArea

bool osmscout::LabelMeasurementKey::labelLineFitToArea {false}

Referenced by osmscout::LabelMeasurementKeyHash::operator()(), and operator==().

labelLineFitToWidth

double osmscout::LabelMeasurementKey::labelLineFitToWidth {0.0}

Referenced by osmscout::LabelMeasurementKeyHash::operator()(), and operator==().

labelLineMaxCharCount

size_t osmscout::LabelMeasurementKey::labelLineMaxCharCount {0}

Referenced by osmscout::LabelMeasurementKeyHash::operator()(), and operator==().

labelLineMinCharCount

size_t osmscout::LabelMeasurementKey::labelLineMinCharCount {0}

Referenced by osmscout::LabelMeasurementKeyHash::operator()(), and operator==().

objectWidth

double osmscout::LabelMeasurementKey::objectWidth {0.0}

Referenced by osmscout::LabelMeasurementKeyHash::operator()(), and operator==().

text

std::string osmscout::LabelMeasurementKey::text

Referenced by osmscout::LabelMeasurementKeyHash::operator()(), and operator==().

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

• LabelLayouter.h