frechet::view::Palette Class Reference

Detailed Description

a color map.

Colors are chosen randomly.

Used for the k-Frechet algorithm to color-code components.

Author

Peter Schäfer

Definition at line 17 of file palette.h.

#include <palette.h>

Public Member Functions
	Palette ()
	constructor; creates an empty palette More...
QColor	operator[] (size_t key)
	look up a color More...
void	clear ()
	remove all entries from the map More...

Static Public Member Functions
static QColor	toColor (int x, int sat=220, int light=200)
	map an integer key to a color More...

Private Types
typedef QMap< size_t, QColor >	ColorMap
	maps component IDs to random colors More...

Private Member Functions
QColor	randomColor ()
QColor	nextColor (size_t key)
	get color for a component; chose a new random color, if necessary More...
void	stronger (QColor &col)
	make the color a darker saturation More...
void	weaker (QColor &col)
	make the color a lighter saturation More...
void	addLightness (QColor &col, double diff)
	modify the lightness of a color More...

Private Attributes
ColorMap	map
	the map More...

Member Typedef Documentation

ColorMap

typedef QMap<size_t,QColor> frechet::view::Palette::ColorMap

private

maps component IDs to random colors

Definition at line 21 of file palette.h.

Constructor & Destructor Documentation

Palette()

Palette::Palette

(

)

constructor; creates an empty palette

Definition at line 35 of file palette.cpp.

Member Function Documentation

addLightness()

void frechet::view::Palette::addLightness ( QColor &  col, double  diff  )

inlineprivate

modify the lightness of a color

Parameters

col	modified on return
diff	difference in lightness

Definition at line 50 of file palette.h.

clear()

void Palette::clear

(

)

remove all entries from the map

Definition at line 52 of file palette.cpp.

nextColor()

QColor Palette::nextColor ( size_t  key )

private

get color for a component; chose a new random color, if necessary

Parameters

key	component ID

Returns

the color for the key

Definition at line 20 of file palette.cpp.

operator[]()

QColor Palette::operator[]

(

size_t

key

)

look up a color

Parameters

key	component ID

Returns

associated color; chosen randomly

Definition at line 38 of file palette.cpp.

randomColor()

QColor Palette::randomColor ( )

private

Returns

a new random color

Definition at line 16 of file palette.cpp.

stronger()

void frechet::view::Palette::stronger ( QColor &  col )

inlineprivate

make the color a darker saturation

Parameters

col	modified on return

Definition at line 35 of file palette.h.

toColor()

QColor Palette::toColor ( int  x, int  sat = 220, int  light = 200  )

static

map an integer key to a color

Parameters

x	key value
sat	saturation
light	lightness

Returns

a color

Definition at line 30 of file palette.cpp.

weaker()

void frechet::view::Palette::weaker ( QColor &  col )

inlineprivate

make the color a lighter saturation

Parameters

col	modified on return

Definition at line 42 of file palette.h.

Member Data Documentation

map

ColorMap frechet::view::Palette::map

private

the map

Definition at line 23 of file palette.h.

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

• include/frechet/view/palette.h
• src/frechet/view/palette.cpp