KoSvgText::ResolutionHandler Struct Reference

The ResolutionHandler class. More...

#include <KoSvgText.h>

Public Member Functions
QPointF	adjust (const QPointF point) const
	Adjusts the point to rounded pixel values, based on whether roundToPixelHorizontal or roundToPixelVertical are true.
QRectF	adjust (const QRectF rect) const
	Adjusts the rect to rounded pixel values, based on whether roundToPixelHorizontal or roundToPixelVertical are true.
QPointF	adjustCeil (const QPointF point) const
	Adjusts the point to ceiled pixel values.
QPointF	adjustFloor (const QPointF point) const
	Adjusts the point to floored pixel values.
QPointF	adjustWithOffset (const QPointF point, const QPointF offset) const
qreal	freeTypePixelToPointFactor (const bool x=true) const
QTransform	freeTypeToPixelTransform () const
QTransform	freeTypeToPointTransform () const
QTransform	pixelToPoint () const
qreal	pixelToPointFactor (const bool x=true) const
QTransform	pointToPixel () const
qreal	pointToPixelFactor (const bool x=true) const
	ResolutionHandler (qreal _xRes=72.0, qreal _yRes=72.0, bool _roundToPixelHorizontal=false, bool _roundToPixelVertical=false)

Public Attributes
const qreal	freeTypePixel = 64.0
const qreal	pointInInch = 72.0
bool	roundToPixelHorizontal = false
bool	roundToPixelVertical = false
qreal	xRes = 72.0
qreal	yRes = 72.0

Detailed Description

The ResolutionHandler class.

convenience struct to handle all the conversions between pixels and points and freetype pixels.

Definition at line 1084 of file KoSvgText.h.

Constructor & Destructor Documentation

ResolutionHandler()

KoSvgText::ResolutionHandler::ResolutionHandler ( qreal _xRes = 72.0, qreal _yRes = 72.0, bool _roundToPixelHorizontal = false, bool _roundToPixelVertical = false )

inline

Definition at line 1086 of file KoSvgText.h.

        : xRes(_xRes), yRes(_yRes), roundToPixelHorizontal(_roundToPixelHorizontal), roundToPixelVertical(_roundToPixelVertical) {}

Member Function Documentation

adjust() [1/2]

QPointF KoSvgText::ResolutionHandler::adjust

(

const QPointF

point

)

const

Adjusts the point to rounded pixel values, based on whether roundToPixelHorizontal or roundToPixelVertical are true.

Definition at line 1704 of file KoSvgText.cpp.

                                                           {
    if (!roundToPixelHorizontal && !roundToPixelVertical) return point;
    QPointF pix = pointToPixel().map(point);
    if (roundToPixelHorizontal) {
        pix.setX(qRound(pix.x()));
    }
    if (roundToPixelVertical) {
        pix.setY(qRound(pix.y()));
    }
    return pixelToPoint().map(pix);
}

References pixelToPoint(), pointToPixel(), roundToPixelHorizontal, and roundToPixelVertical.

adjust() [2/2]

QRectF KoSvgText::ResolutionHandler::adjust

(

const QRectF

rect

)

const

Adjusts the rect to rounded pixel values, based on whether roundToPixelHorizontal or roundToPixelVertical are true.

Definition at line 1748 of file KoSvgText.cpp.

                                                        {
    return QRectF(adjust(rect.topLeft()), adjust(rect.bottomRight()));
}

References adjust().

adjustCeil()

QPointF KoSvgText::ResolutionHandler::adjustCeil

(

const QPointF

point

)

const

Adjusts the point to ceiled pixel values.

See also

adjust(QPointF);

Definition at line 1729 of file KoSvgText.cpp.

{
    if (!roundToPixelHorizontal && !roundToPixelVertical) return point;
    QPointF pix = pointToPixel().map(point);
    if (roundToPixelHorizontal) {
        pix.setX(ceil(pix.x()));
    }
    if (roundToPixelVertical) {
        pix.setY(ceil(pix.y()));
    }
    return pixelToPoint().map(pix);
}

References pixelToPoint(), pointToPixel(), roundToPixelHorizontal, and roundToPixelVertical.

adjustFloor()

QPointF KoSvgText::ResolutionHandler::adjustFloor

(

const QPointF

point

)

const

Adjusts the point to floored pixel values.

See also

adjust(QPointF);

Definition at line 1716 of file KoSvgText.cpp.

{
    if (!roundToPixelHorizontal && !roundToPixelVertical) return point;
    QPointF pix = pointToPixel().map(point);
    if (roundToPixelHorizontal) {
        pix.setX(floor(pix.x()));
    }
    if (roundToPixelVertical) {
        pix.setY(floor(pix.y()));
    }
    return pixelToPoint().map(pix);
}

References pixelToPoint(), pointToPixel(), roundToPixelHorizontal, and roundToPixelVertical.

adjustWithOffset()

QPointF KoSvgText::ResolutionHandler::adjustWithOffset	(	const QPointF	point,
		const QPointF	offset ) const

For text decoration, we need to ensure that the whole thing, including width and height is aligned to the pixel. So this adds the offset (half the total width) and uses that to round to.

Definition at line 1742 of file KoSvgText.cpp.

{
    if (!roundToPixelHorizontal && !roundToPixelVertical) return point;
    return adjust(point+offset)-offset;
}

References adjust(), roundToPixelHorizontal, and roundToPixelVertical.

freeTypePixelToPointFactor()

qreal KoSvgText::ResolutionHandler::freeTypePixelToPointFactor

(

const bool

x = true

)

const

Definition at line 1687 of file KoSvgText.cpp.

                                                                      {
    return (1.0/freeTypePixel) * pixelToPointFactor(x);
}

References freeTypePixel, and pixelToPointFactor().

freeTypeToPixelTransform()

QTransform KoSvgText::ResolutionHandler::freeTypeToPixelTransform

(

)

const

Definition at line 1691 of file KoSvgText.cpp.

                                                             {
    return QTransform::fromScale(1/freeTypePixel, -1/freeTypePixel);
}

References freeTypePixel.

freeTypeToPointTransform()

QTransform KoSvgText::ResolutionHandler::freeTypeToPointTransform

(

)

const

Definition at line 1695 of file KoSvgText.cpp.

{
    return freeTypeToPixelTransform()*pixelToPoint();
}

References freeTypeToPixelTransform(), and pixelToPoint().

pixelToPoint()

QTransform KoSvgText::ResolutionHandler::pixelToPoint

(

)

const

Definition at line 1700 of file KoSvgText.cpp.

                                                 {
    return QTransform::fromScale(pointInInch / xRes, pointInInch / yRes);
}

References pointInInch, xRes, and yRes.

pixelToPointFactor()

qreal KoSvgText::ResolutionHandler::pixelToPointFactor

(

const bool

x = true

)

const

Definition at line 1760 of file KoSvgText.cpp.

                                                              {
    return x? pointInInch/xRes: pointInInch/yRes;
}

References pointInInch, xRes, and yRes.

pointToPixel()

QTransform KoSvgText::ResolutionHandler::pointToPixel

(

)

const

Definition at line 1756 of file KoSvgText.cpp.

                                                 {
    return QTransform::fromScale(xRes/pointInInch, yRes/pointInInch);
}

References pointInInch, xRes, and yRes.

pointToPixelFactor()

qreal KoSvgText::ResolutionHandler::pointToPixelFactor

(

const bool

x = true

)

const

Definition at line 1752 of file KoSvgText.cpp.

                                                              {
    return x? xRes/pointInInch: yRes/pointInInch;
}

References pointInInch, xRes, and yRes.

Member Data Documentation

freeTypePixel

const qreal KoSvgText::ResolutionHandler::freeTypePixel = 64.0

Definition at line 1095 of file KoSvgText.h.

pointInInch

const qreal KoSvgText::ResolutionHandler::pointInInch = 72.0

Definition at line 1096 of file KoSvgText.h.

roundToPixelHorizontal

bool KoSvgText::ResolutionHandler::roundToPixelHorizontal = false

Definition at line 1092 of file KoSvgText.h.

roundToPixelVertical

bool KoSvgText::ResolutionHandler::roundToPixelVertical = false

Definition at line 1093 of file KoSvgText.h.

xRes

qreal KoSvgText::ResolutionHandler::xRes = 72.0

Definition at line 1090 of file KoSvgText.h.

yRes

qreal KoSvgText::ResolutionHandler::yRes = 72.0

Definition at line 1091 of file KoSvgText.h.

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

• libs/flake/text/KoSvgText.h
• libs/flake/text/KoSvgText.cpp