qpaintengineex.cpp File Reference

#include "qpaintengineex_p.h"
#include "qpainter_p.h"
#include "qstroker_p.h"
#include "qbezier_p.h"
#include <private/qpainterpath_p.h>
#include <private/qfontengine_p.h>
#include <private/qstatictext_p.h>
#include <qvarlengtharray.h>
#include <qdebug.h>

Go to the source code of this file.

Classes
struct	StrokeHandler

Functions
QDebug Q_GUI_EXPORT &	operator<< (QDebug &s, const QVectorPath &path)
static void	qpaintengineex_cubicTo (qreal c1x, qreal c1y, qreal c2x, qreal c2y, qreal ex, qreal ey, void *data)
static void	qpaintengineex_lineTo (qreal x, qreal y, void *data)
static void	qpaintengineex_moveTo (qreal x, qreal y, void *data)
Q_GUI_EXPORT QPainterPath	qt_painterPathFromVectorPath (const QVectorPath &path)
Q_GUI_EXPORT bool	qt_scaleForTransform (const QTransform &transform, qreal *scale)
const QVectorPath &	qtVectorPathForPath (const QPainterPath &path)

Variables
static QPainterPath::ElementType	qpaintengineex_ellipse_types []
static QPainterPath::ElementType	qpaintengineex_line_types_16 []
static QPainterPath::ElementType	qpaintengineex_rect4_types_32 []
static QPainterPath::ElementType	qpaintengineex_roundedrect_types []

Function Documentation

operator<<()

QDebug Q_GUI_EXPORT& operator<<	(	QDebug &	s,
		const QVectorPath &	path
	)

Definition at line 136 of file qpaintengineex.cpp.

{
    QRectF rf = path.controlPointRect();
    s << "QVectorPath(size:" << path.elementCount()
      << " hints:" << hex << path.hints()
      << rf << ')';
    return s;
}

qpaintengineex_cubicTo()

static void qpaintengineex_cubicTo ( qreal  c1x, qreal  c1y, qreal  c2x, qreal  c2y, qreal  ex, qreal  ey, void *  data  )

static

Definition at line 353 of file qpaintengineex.cpp.

Referenced by QPaintEngineEx::stroke().

                                                                                                               {
    ((StrokeHandler *) data)->pts.add(c1x);
    ((StrokeHandler *) data)->pts.add(c1y);
    ((StrokeHandler *) data)->types.add(QPainterPath::CurveToElement);

    ((StrokeHandler *) data)->pts.add(c2x);
    ((StrokeHandler *) data)->pts.add(c2y);
    ((StrokeHandler *) data)->types.add(QPainterPath::CurveToDataElement);

    ((StrokeHandler *) data)->pts.add(ex);
    ((StrokeHandler *) data)->pts.add(ey);
    ((StrokeHandler *) data)->types.add(QPainterPath::CurveToDataElement);
}

qpaintengineex_lineTo()

static void qpaintengineex_lineTo ( qreal  x, qreal  y, void *  data  )

static

Definition at line 347 of file qpaintengineex.cpp.

Referenced by QPaintEngineEx::stroke().

                                                                {
    ((StrokeHandler *) data)->pts.add(x);
    ((StrokeHandler *) data)->pts.add(y);
    ((StrokeHandler *) data)->types.add(QPainterPath::LineToElement);
}

qpaintengineex_moveTo()

static void qpaintengineex_moveTo ( qreal  x, qreal  y, void *  data  )

static

Definition at line 341 of file qpaintengineex.cpp.

Referenced by QPaintEngineEx::stroke().

                                                                {
    ((StrokeHandler *) data)->pts.add(x);
    ((StrokeHandler *) data)->pts.add(y);
    ((StrokeHandler *) data)->types.add(QPainterPath::MoveToElement);
}

qt_painterPathFromVectorPath()

Q_GUI_EXPORT QPainterPath qt_painterPathFromVectorPath

(

const QVectorPath &

path

)

Definition at line 1033 of file qpaintengineex.cpp.

Referenced by QVGPaintEngine::draw(), QVGPaintEngine::fill(), QOpenGLPaintEngine::fill(), and QOpenGLPaintEngine::transformChanged().

{
    const qreal *points = path.points();
    const QPainterPath::ElementType *types = path.elements();

    QPainterPath p;
    if (types) {
        int id = 0;
        for (int i=0; i<path.elementCount(); ++i) {
            switch(types[i]) {
            case QPainterPath::MoveToElement:
                p.moveTo(QPointF(points[id], points[id+1]));
                id+=2;
                break;
            case QPainterPath::LineToElement:
                p.lineTo(QPointF(points[id], points[id+1]));
                id+=2;
                break;
            case QPainterPath::CurveToElement: {
                QPointF p1(points[id], points[id+1]);
                QPointF p2(points[id+2], points[id+3]);
                QPointF p3(points[id+4], points[id+5]);
                p.cubicTo(p1, p2, p3);
                id+=6;
                break;
            }
            case QPainterPath::CurveToDataElement:
                ;
                break;
            }
        }
    } else {
        p.moveTo(QPointF(points[0], points[1]));
        int id = 2;
        for (int i=1; i<path.elementCount(); ++i) {
            p.lineTo(QPointF(points[id], points[id+1]));
            id+=2;
        }
    }
    if (path.hints() & QVectorPath::WindingFill)
        p.setFillRule(Qt::WindingFill);

    return p;
}

qt_scaleForTransform()

Q_GUI_EXPORT bool qt_scaleForTransform	(	const QTransform &	transform,
		qreal *	scale
	)

Definition at line 2407 of file qtransform.cpp.

Referenced by QPaintEngineEx::createState().

{
    const QTransform::TransformationType type = transform.type();
    if (type <= QTransform::TxTranslate) {
        if (scale)
            *scale = 1;
        return true;
    } else if (type == QTransform::TxScale) {
        const qreal xScale = qAbs(transform.m11());
        const qreal yScale = qAbs(transform.m22());
        if (scale)
            *scale = qMax(xScale, yScale);
        return qFuzzyCompare(xScale, yScale);
    }

    const qreal xScale = transform.m11() * transform.m11()
                         + transform.m21() * transform.m21();
    const qreal yScale = transform.m12() * transform.m12()
                         + transform.m22() * transform.m22();
    if (scale)
        *scale = qSqrt(qMax(xScale, yScale));
    return type == QTransform::TxRotate && qFuzzyCompare(xScale, yScale);
}

qtVectorPathForPath()

const QVectorPath& qtVectorPathForPath

(

const QPainterPath &

path

)

Definition at line 129 of file qpaintengineex.cpp.

Referenced by QGL2PaintEngineEx::clip(), QPaintEngineEx::clip(), QPaintEngineEx::drawPath(), QPaintEngineEx::drawStaticTextItem(), QPainter::fillPath(), QTriangulator< T >::initialize(), QPainter::strokePath(), and QGL2PaintEngineExPrivate::systemStateChanged().

{
    Q_ASSERT(path.d_func());
    return path.d_func()->vectorPath();
}

Variable Documentation

qpaintengineex_ellipse_types

QPainterPath::ElementType qpaintengineex_ellipse_types[]

static

Initial value:

= {
    QPainterPath::MoveToElement,
    QPainterPath::CurveToElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::CurveToDataElement,

    QPainterPath::CurveToElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::CurveToDataElement,

    QPainterPath::CurveToElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::CurveToDataElement,

    QPainterPath::CurveToElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::CurveToDataElement
}

Definition at line 245 of file qpaintengineex.cpp.

Referenced by QPaintEngineEx::drawEllipse().

qpaintengineex_line_types_16

QPainterPath::ElementType qpaintengineex_line_types_16[]

static

Initial value:

= {
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement,
    QPainterPath::MoveToElement, QPainterPath::LineToElement
}

Definition at line 264 of file qpaintengineex.cpp.

Referenced by QPaintEngineEx::drawLines(), and QPaintEngineEx::drawPoints().

qpaintengineex_rect4_types_32

QPainterPath::ElementType qpaintengineex_rect4_types_32[]

static

Definition at line 283 of file qpaintengineex.cpp.

Referenced by QPaintEngineEx::clip().

qpaintengineex_roundedrect_types

QPainterPath::ElementType qpaintengineex_roundedrect_types[]

static

Initial value:

= {
    QPainterPath::MoveToElement,
    QPainterPath::LineToElement,
    QPainterPath::CurveToElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::LineToElement,
    QPainterPath::CurveToElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::LineToElement,
    QPainterPath::CurveToElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::LineToElement,
    QPainterPath::CurveToElement,
    QPainterPath::CurveToDataElement,
    QPainterPath::CurveToDataElement
}

Definition at line 319 of file qpaintengineex.cpp.

Referenced by QPaintEngineEx::drawRoundedRect().