#include <KisVisualDiamondSelectorShape.h>

Inheritance diagram for KisVisualDiamondSelectorShape:

Public Member Functions
QRect	getSpaceForCircle (QRect geom) override

QRect	getSpaceForSquare (QRect geom) override
	getSpaceForSquare

QRect	getSpaceForTriangle (QRect geom) override

	KisVisualDiamondSelectorShape (KisVisualColorSelector *parent, Dimensions dimension, int channel1, int channel2, int margin=5)

void	setBorderWidth (int) override
	setBorderWidth set the border of the single dimensional selector.

	~KisVisualDiamondSelectorShape () override

Public Member Functions inherited from KisVisualColorSelectorShape
int	channel (int dimension) const
	channel Get the channel index associated with a selector shape dimension

quint32	channelMask () const

void	forceImageUpdate ()
	forceImageUpdate force the image to recache.

QColor	getColorFromConverter (KoColor c)
	getColorFromConverter

KoColor	getCurrentColor ()
	getCurrentColor

QPointF	getCursorPosition () const
	getCursorPosition

Dimensions	getDimensions () const
	getDimensions

const QImage &	getImageMap ()
	getImageMap returns the updated base image

bool	isHueControl () const

	KisVisualColorSelectorShape (KisVisualColorSelector *parent, KisVisualColorSelectorShape::Dimensions dimension, int channel1, int channel2)

void	setAcceptTabletEvents (bool on)

void	setChannelValues (QVector4D channelValues, quint32 channelFlags)
	setChannelValues Set the current channel values; Note that channel values controlled by the shape itself have no effect unless setCursor is true. This will trigger a full widget repaint.

void	setCursorPosition (QPointF position, bool signal=false)
	setCursorPosition Set the cursor to normalized shape coordinates. This will only repaint the cursor.

virtual bool	supportsGamutMask () const

virtual void	updateGamutMask ()
	Notify shape that the gamut mask changed.

	~KisVisualColorSelectorShape () override

Protected Member Functions
QImage	renderAlphaMask () const override
	render the alpha mask for the widget background the returned image is expected to be QImage::Format_Alpha8

Protected Member Functions inherited from KisVisualColorSelectorShape
KisVisualColorSelector *	colorSelector () const

virtual QImage	compositeBackground () const

QImage	convertImageMap (const quint8 *rawColor, quint32 bufferSize, QSize imgSize) const
	convertImageMap convert image data containing raw KoColor data into a QImage

void	mouseMoveEvent (QMouseEvent *e) override

virtual QPointF	mousePositionToShapeCoordinate (const QPointF &pos, const QPointF &dragStart) const
	default implementation just calls convertWidgetCoordinateToShapeCoordinate(pos)

void	mousePressEvent (QMouseEvent *e) override

void	mouseReleaseEvent (QMouseEvent *e) override

void	paintEvent (QPaintEvent *) override

virtual QImage	renderBackground (const QVector4D &channelValues, const QImage &alpha) const
	renderBackground Render the widget background visible inside the widget's mask in current color space Rendering shall be done with the conversion functions of KisVisualColorSelector

virtual QImage	renderStaticAlphaMask () const

void	resizeEvent (QResizeEvent *) override

KisVisualColorModel *	selectorModel () const

void	tabletEvent (QTabletEvent *event) override

Private Member Functions
QPointF	convertShapeCoordinateToWidgetCoordinate (QPointF coordinate) const override
	convertShapeCoordinateToWidgetCoordinate

QPointF	convertWidgetCoordinateToShapeCoordinate (QPointF coordinate) const override
	convertWidgetCoordinateToShapeCoordinate Convert a coordinate in the widget's height/width to a shape coordinate.

void	drawCursor (QPainter &painter) override

QRegion	getMaskMap () override
	getPixmap

Private Attributes
int	m_margin { 5 }

Additional Inherited Members
Public Types inherited from KisVisualColorSelectorShape
enum	Dimensions { onedimensional , twodimensional }
	The Dimensions enum Whether or not the shape is single or two dimensional. More...

Signals inherited from KisVisualColorSelectorShape
void	sigCursorMoved (QPointF pos)

Detailed Description

Definition at line 12 of file KisVisualDiamondSelectorShape.h.

Constructor & Destructor Documentation

◆ KisVisualDiamondSelectorShape()

KisVisualDiamondSelectorShape::KisVisualDiamondSelectorShape	(	KisVisualColorSelector *	parent,
		Dimensions	dimension,
		int	channel1,
		int	channel2,
		int	margin = 5 )

explicit

Definition at line 16 of file KisVisualDiamondSelectorShape.cpp.

    : KisVisualColorSelectorShape(parent, dimension, channel1, channel2),
      m_margin(margin)
{
}

◆ ~KisVisualDiamondSelectorShape()

KisVisualDiamondSelectorShape::~KisVisualDiamondSelectorShape ( )

override

Definition at line 25 of file KisVisualDiamondSelectorShape.cpp.

26{

27}

Member Function Documentation

◆ convertShapeCoordinateToWidgetCoordinate()

QPointF KisVisualDiamondSelectorShape::convertShapeCoordinateToWidgetCoordinate ( QPointF ) const

overrideprivatevirtual

convertShapeCoordinateToWidgetCoordinate

Returns: take the position in the shape and convert it to screen coordinates.

Implements KisVisualColorSelectorShape.

Definition at line 49 of file KisVisualDiamondSelectorShape.cpp.

{
    // margin serves to render the cursor, and triangle is rendered 1px larger than its active area
    qreal offset = m_margin + 1.0;
 
    qreal y = ((1.0 - coordinate.y()) * (height() - 1 - 2 * offset)) + offset;
 
    qreal triWidth = width() - 1 - 2 * offset;
    qreal horizontalLineLength;
    if (coordinate.y() < 0.5) {
        horizontalLineLength = 2.0 * coordinate.y() * triWidth;
    } else {
        horizontalLineLength = 2.0 * (1.0 - coordinate.y()) * triWidth;
    }
    qreal horizontalLineStart = offset + 0.5 * (triWidth - horizontalLineLength);
 
    qreal x = coordinate.x() * horizontalLineLength + horizontalLineStart;
 
    return QPointF(x, y);
}

References m_margin.

◆ convertWidgetCoordinateToShapeCoordinate()

QPointF KisVisualDiamondSelectorShape::convertWidgetCoordinateToShapeCoordinate ( QPointF coordinate ) const

overrideprivatevirtual

convertWidgetCoordinateToShapeCoordinate Convert a coordinate in the widget's height/width to a shape coordinate.

Parameters

coordinate the position your wish to have the shape coordinates of.

Implements KisVisualColorSelectorShape.

Definition at line 70 of file KisVisualDiamondSelectorShape.cpp.

{
    // margin serves to render the cursor, and triangle is rendered 1px larger than its active area
    qreal offset = m_margin + 1.0;
 
    qreal x = 0.5;
    qreal y = qBound(0.0, 1.0 - (coordinate.y() - offset)/(height() - 1 - 2 * offset), 1.0);
 
    qreal triWidth = width() - 1 - 2 * offset;
    qreal horizontalLineLength;
 
    if (y < 0.5) {
        horizontalLineLength = 2.0 * y * triWidth;
    } else {
        horizontalLineLength = 2.0 * (1.0 - y) * triWidth;
    }
 
    if (horizontalLineLength > 1e-4) {
        qreal horizontalLineStart = offset + 0.5 * (triWidth - horizontalLineLength);
        x = qBound(0.0, (coordinate.x() - horizontalLineStart) / horizontalLineLength, 1.0);
    }
 
    return QPointF(x, y);
}

References m_margin.

◆ drawCursor()

void KisVisualDiamondSelectorShape::drawCursor ( QPainter & painter )

overrideprivatevirtual

Implements KisVisualColorSelectorShape.

Definition at line 136 of file KisVisualDiamondSelectorShape.cpp.

{
    QPointF cursorPoint = convertShapeCoordinateToWidgetCoordinate(getCursorPosition());
    QColor col = getColorFromConverter(getCurrentColor());
    QBrush fill(Qt::SolidPattern);
 
    int cursorwidth = 5;
 
    painter.setPen(Qt::white);
    fill.setColor(Qt::white);
    painter.setBrush(fill);
    painter.drawEllipse(cursorPoint, cursorwidth, cursorwidth);
    fill.setColor(col);
    painter.setPen(Qt::black);
    painter.setBrush(fill);
    painter.drawEllipse(cursorPoint, cursorwidth-1.0, cursorwidth-1.0);
}

References convertShapeCoordinateToWidgetCoordinate(), KisVisualColorSelectorShape::getColorFromConverter(), KisVisualColorSelectorShape::getCurrentColor(), and KisVisualColorSelectorShape::getCursorPosition().

◆ getMaskMap()

QRegion KisVisualDiamondSelectorShape::getMaskMap ( )

overrideprivatevirtual

getPixmap

Returns: the pixmap of this shape.

Implements KisVisualColorSelectorShape.

Definition at line 95 of file KisVisualDiamondSelectorShape.cpp.

{
    const int cursorWidth = qMax(2 * m_margin, 2);
    QPolygon maskPoly;
    maskPoly << QPoint(qFloor(0.5 * (width() - cursorWidth)), 0)
             << QPoint(qCeil(0.5 * (width() + cursorWidth)), 0)
             << QPoint(width(), qFloor(0.5 * height() - cursorWidth))
             << QPoint(width(), qCeil(0.5 * height() + cursorWidth))
             << QPoint(qCeil(0.5 * (width() + cursorWidth)), height())
             << QPoint(qFloor(0.5 * (width() - cursorWidth)), height())
             << QPoint(0, qCeil(0.5 * height() + cursorWidth))
             << QPoint(0, qFloor(0.5 * height() - cursorWidth));
 
    return QRegion(maskPoly);
}

References m_margin.

◆ getSpaceForCircle()

QRect KisVisualDiamondSelectorShape::getSpaceForCircle ( QRect geom )

overridevirtual

Implements KisVisualColorSelectorShape.

Definition at line 39 of file KisVisualDiamondSelectorShape.cpp.

{
    return geom;
}

◆ getSpaceForSquare()

QRect KisVisualDiamondSelectorShape::getSpaceForSquare ( QRect geom )

overridevirtual

getSpaceForSquare

Parameters

geom	the full widget rectangle

Returns: rectangle with enough space for second widget

Implements KisVisualColorSelectorShape.

Definition at line 34 of file KisVisualDiamondSelectorShape.cpp.

{
    return geom;
}

◆ getSpaceForTriangle()

QRect KisVisualDiamondSelectorShape::getSpaceForTriangle ( QRect geom )

overridevirtual

Implements KisVisualColorSelectorShape.

Definition at line 44 of file KisVisualDiamondSelectorShape.cpp.

{
    return geom;
}

◆ renderAlphaMask()

QImage KisVisualDiamondSelectorShape::renderAlphaMask ( ) const

overrideprotectedvirtual

render the alpha mask for the widget background the returned image is expected to be QImage::Format_Alpha8

Reimplemented from KisVisualColorSelectorShape.

Definition at line 111 of file KisVisualDiamondSelectorShape.cpp.

{
    // Hi-DPI aware rendering requires that we determine the device pixel dimension;
    // actual widget size in device pixels is not accessible unfortunately, it might be 1px smaller...
    const int deviceWidth = qCeil(width() * devicePixelRatioF());
    const int deviceHeight = qCeil(height() * devicePixelRatioF());
 
    QImage alphaMask(deviceWidth, deviceHeight, QImage::Format_Alpha8);
    alphaMask.fill(0);
    alphaMask.setDevicePixelRatio(devicePixelRatioF());
    QPainter painter(&alphaMask);
    painter.setRenderHint(QPainter::Antialiasing);
    painter.setBrush(Qt::white);
    painter.setPen(Qt::NoPen);
    QPointF diamond[4] = {
        QPointF(0.5 * width(), m_margin),
        QPointF(m_margin, 0.5 * height()),
        QPointF(0.5 * width(), height() - m_margin),
        QPointF(width() - m_margin, 0.5 * height())
    };
    painter.drawConvexPolygon(diamond, 4);
 
    return alphaMask;
}

References m_margin.

◆ setBorderWidth()

void KisVisualDiamondSelectorShape::setBorderWidth ( int width )

overridevirtual

setBorderWidth set the border of the single dimensional selector.

Parameters

width

Implements KisVisualColorSelectorShape.

Definition at line 29 of file KisVisualDiamondSelectorShape.cpp.

{
    // Diamond doesn't have a 1-dimensional mode
}

Member Data Documentation

◆ m_margin

int KisVisualDiamondSelectorShape::m_margin { 5 }

private

Definition at line 45 of file KisVisualDiamondSelectorShape.h.

45{ 5 };

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

libs/widgets/KisVisualDiamondSelectorShape.h
libs/widgets/KisVisualDiamondSelectorShape.cpp

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ KisVisualDiamondSelectorShape()

◆ ~KisVisualDiamondSelectorShape()

Member Function Documentation

◆ convertShapeCoordinateToWidgetCoordinate()

◆ convertWidgetCoordinateToShapeCoordinate()

◆ drawCursor()

◆ getMaskMap()

◆ getSpaceForCircle()

◆ getSpaceForSquare()

◆ getSpaceForTriangle()

◆ renderAlphaMask()

◆ setBorderWidth()

Member Data Documentation

◆ m_margin