QwtPlotCurve::PrivateData::PixelMatrix Class Reference

List of all members.

Public Member Functions
	PixelMatrix (const QRect &rect)
bool	testPixel (const QPoint &pos)

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Detailed Description

Definition at line 161 of file qwt_plot_curve.cpp.

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Constructor & Destructor Documentation

QwtPlotCurve::PrivateData::PixelMatrix::PixelMatrix

(

const QRect &

rect )

[inline]

Definition at line 164 of file qwt_plot_curve.cpp.

                                      :
            QBitArray(rect.width() * rect.height()),
            _rect(rect)
        {
            fill(false);
        }

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Member Function Documentation

bool QwtPlotCurve::PrivateData::PixelMatrix::testPixel

(

const QPoint &

pos )

[inline]

Definition at line 171 of file qwt_plot_curve.cpp.

Referenced by QwtPlotCurve::drawDots(), and QwtPlotCurve::drawSymbols().

        {
            if ( !_rect.contains(pos) )
                return false;

            const int idx = _rect.width() * (pos.y() - _rect.y()) + 
                (pos.x() - _rect.x());

            const bool marked = testBit(idx);
            if ( !marked )
                setBit(idx, true);

            return !marked;
        }

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

• qwt_plot_curve.cpp