QgsPreviewEffect Class Reference

A graphics effect which can be applied to a widget to simulate various printing and color blindness modes. More...

#include <qgsprevieweffect.h>

Inheritance diagram for QgsPreviewEffect:

Collaboration diagram for QgsPreviewEffect:

Public Types
enum	PreviewMode { PreviewGrayscale, PreviewMono, PreviewProtanope, PreviewDeuteranope }

Public Member Functions
	QgsPreviewEffect (QObject *parent)
	~QgsPreviewEffect ()
void	setMode (PreviewMode mode)
	Sets the mode for the preview effect, which controls how the effect modifies a widgets appearance. More...
PreviewMode	mode () const
	Returns the mode used for the preview effect. More...

Protected Member Functions
virtual void	draw (QPainter *painter)

Private Member Functions
QRgb	simulateColorBlindness (QRgb &originalColor, PreviewMode type)
void	simulateProtanopeLMS (double &L, double &M, double &S)
void	simulateDeuteranopeLMS (double &L, double &M, double &S)

Private Attributes
PreviewMode	mMode

Detailed Description

A graphics effect which can be applied to a widget to simulate various printing and color blindness modes.

Definition at line 28 of file qgsprevieweffect.h.

Member Enumeration Documentation

enum QgsPreviewEffect::PreviewMode

Enumerator
PreviewGrayscale
PreviewMono
PreviewProtanope
PreviewDeuteranope

Definition at line 33 of file qgsprevieweffect.h.

Constructor & Destructor Documentation

QgsPreviewEffect::QgsPreviewEffect

(

QObject *

parent

)

Definition at line 22 of file qgsprevieweffect.cpp.

QgsPreviewEffect::~QgsPreviewEffect

(

)

Definition at line 30 of file qgsprevieweffect.cpp.

Member Function Documentation

void QgsPreviewEffect::draw ( QPainter *  painter )

protectedvirtual

Definition at line 41 of file qgsprevieweffect.cpp.

References mMode, PreviewDeuteranope, PreviewGrayscale, PreviewMono, PreviewProtanope, and simulateColorBlindness().

PreviewMode QgsPreviewEffect::mode ( ) const

inline

Returns the mode used for the preview effect.

Returns

PreviewMode currently used by the effect

Note

added in 2.3

See also

setMode

Definition at line 55 of file qgsprevieweffect.h.

Referenced by QgsMapCanvas::previewMode(), and setMode().

void QgsPreviewEffect::setMode

(

QgsPreviewEffect::PreviewMode

mode

)

Sets the mode for the preview effect, which controls how the effect modifies a widgets appearance.

Parameters

mode	PreviewMode to use to draw the widget

Note

added in 2.3

See also

mode

Definition at line 35 of file qgsprevieweffect.cpp.

References mMode, and mode().

Referenced by QgsComposerView::setPreviewMode(), and QgsMapCanvas::setPreviewMode().

QRgb QgsPreviewEffect::simulateColorBlindness ( QRgb &  originalColor, QgsPreviewEffect::PreviewMode  mode  )

private

Definition at line 106 of file qgsprevieweffect.cpp.

References PreviewDeuteranope, PreviewProtanope, simulateDeuteranopeLMS(), and simulateProtanopeLMS().

Referenced by draw().

void QgsPreviewEffect::simulateDeuteranopeLMS ( double &  L, double &  M, double &  S  )

private

Definition at line 152 of file qgsprevieweffect.cpp.

Referenced by simulateColorBlindness().

void QgsPreviewEffect::simulateProtanopeLMS ( double &  L, double &  M, double &  S  )

private

Definition at line 145 of file qgsprevieweffect.cpp.

Referenced by simulateColorBlindness().

Member Data Documentation

PreviewMode QgsPreviewEffect::mMode

private

Definition at line 62 of file qgsprevieweffect.h.

Referenced by draw(), and setMode().

---

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

• /tmp/buildd/qgis-2.4.0+unstable1/src/gui/qgsprevieweffect.h
• /tmp/buildd/qgis-2.4.0+unstable1/src/gui/qgsprevieweffect.cpp