GradientEditor Class Reference

#include <gradienteditor.h>

List of all members.

Public Slots
void	pointsUpdated ()
void	colorDialog (int index, QWidget *selectedWidget)
void	moveColorsToAlpha (bool state)
void	moveColorsWithAlpha (int index, qreal newXPos)
void	newColorPoints (int index, qreal xPos)
void	deleteColorPoints (int index)
Signals
void	gradientStopsChanged (const QGradientStops &stops)
Public Member Functions
	GradientEditor (QWidget *parent)
void	setGradientStops (const QGradientStops &stops)
unsigned int *	getColorsPtr ()
void	updateColorTexture (int minDensity=0, int maxDensity=4095)
void	forwardHistogramPtr (QPixmap *histogramPtr)
Protected Member Functions
void	resizeEvent (QResizeEvent *event)

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Detailed Description

The gradienteditor class is a collection of a red, green, blue and alpha ShadeWidget.

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Constructor & Destructor Documentation

GradientEditor::GradientEditor

(

QWidget *

parent

)

Constructor that creates the transfer function editor.

Returns:

The pointer to the created transfer function editor.

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Member Function Documentation

void GradientEditor::setGradientStops

(

const QGradientStops &

stops

)

Sets the gradient stops position and color from the given stops.

Parameters:

stops

are the gradient stops which should be set.

unsigned int * GradientEditor::getColorsPtr

(

)

Returns:

The pointer to the transfer texture.

void GradientEditor::updateColorTexture	(	int	minDensity = 0,
		int	maxDensity = 4095
	)

Updates the transfer texture with the color currently set in ShadeWidgets.

void GradientEditor::forwardHistogramPtr

(

QPixmap *

histogramPtr

)

Forwards the QPixmap pointer to the alpha ShadeWidget.

Parameters:

histogramPtr

is the pointer which should be forwarded.

void GradientEditor::pointsUpdated

(

)

[slot]

Updates the gradient stops position and color from the currently set points. Sets this gradient points at the alpha ShadeWidget and emits a gradientStopsChanged signal.

void GradientEditor::colorDialog	(	int	index,
		QWidget *	selectedWidget
	)			[slot]

Creates a color dialog with which a new color can be set.

Parameters:

	index	is the index of the point for which the color should be changed.
	selectedWidget	is a pointer to the ShadeWidget from whom the x pos for the other 3 poitns, which should be chnaged, is taken.

void GradientEditor::moveColorsToAlpha

(

bool

state

)

[slot]

Sets the state of colorsFixatedToAlpha. Creates the color points over each alpha point with the current color of the alpha point or not (dependent on the state). Also sets the 3 color ShadeWidgets as editable or not (dependent on the state).

Parameters:

state

is the state of the checkbox which calls this function.

void GradientEditor::moveColorsWithAlpha	(	int	index,
		qreal	newXPos
	)			[slot]

Moves the 3 color points with the corresponding alpha point if colorsFixatedToAlpha is true.

Parameters:

	index	is the index of the points which should be moved.
	newXPos	is the new x position to which the corresponding points should be moved.

void GradientEditor::newColorPoints	(	int	index,
		qreal	xPos
	)			[slot]

Creates the 3 color points for the corresponding alpha point if colorsFixatedToAlpha is true.

Parameters:

	index	is the index where the points should be saved.
	xPos	is the x position where the points should be created.

void GradientEditor::deleteColorPoints

(

int

index

)

[slot]

Deletes the 3 color points of the corresponding alpha point if colorsFixatedToAlpha is true.

Parameters:

index

is the index where the points should be deleted.

void GradientEditor::gradientStopsChanged

(

const QGradientStops &

stops

)

[signal]

A signal that is send on change of the gradient stops.

Parameters:

stops

are the gradient stops which changed.

void GradientEditor::resizeEvent

(

QResizeEvent *

event

)

[protected]

Updates the gradient points at each GradientEditor resizing.

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

• gradienteditor.h
• gradienteditor.cpp