A marker can be a horizontal line, a vertical line, a symbol, a label or any combination of them, which can be drawn around a center point inside a bounding rectangle.
The QwtPlotMarker::setSymbol() member assigns a symbol to the marker. The symbol is drawn at the specified point.
With QwtPlotMarker::setLabel(), a label can be assigned to the marker. The QwtPlotMarker::setLabelAlignment() member specifies where the label is drawn. All the Align*-constants in Qt::AlignmentFlags (see Qt documentation) are valid. The interpretation of the alignment depends on the marker's line style. The alignment refers to the center point of the marker, which means, for example, that the label would be printed left above the center point if the alignment was set to AlignLeft|AlignTop.
Definition at line 45 of file qwt_plot_marker.h.
Public Types | |
enum | LineStyle { NoLine, HLine, VLine, Cross } |
Public Member Functions | |
QwtPlotMarker () | |
virtual | ~QwtPlotMarker () |
QwtPlotMarker (const QwtPlotMarker &) | |
QwtPlotMarker & | operator= (const QwtPlotMarker &) |
virtual int | rtti () const |
double | xValue () const |
double | yValue () const |
QwtDoublePoint | value () const |
void | setXValue (double) |
void | setYValue (double) |
void | setValue (double, double) |
void | setValue (const QwtDoublePoint &) |
void | setLineStyle (LineStyle st) |
LineStyle | lineStyle () const |
void | setSymbol (const QwtSymbol &s) |
const QwtSymbol & | symbol () const |
void | setLabel (const QString &text, const QFont &font=QFont(), const QColor &color=QColor(), const QPen &pen=QPen(Qt::NoPen), const QBrush &brush=QBrush(Qt::NoBrush)) |
void | setLabelText (const QString &text) |
const QString | label () const |
void | setLabelAlignment (int align) |
int | labelAlignment () const |
void | setLabelColor (const QColor &c) |
const QColor | labelColor () const |
void | setLabelPen (const QPen &p) |
const QPen | labelPen () const |
void | setLinePen (const QPen &p) |
const QPen & | linePen () const |
void | setFont (const QFont &f) |
const QFont | font () const |
virtual void | draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &) const |
virtual QwtDoubleRect | boundingRect () const |
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Line styles. Definition at line 53 of file qwt_plot_marker.h. |
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Sets alignment to Qt::AlignCenter, and style to NoLine.
Definition at line 53 of file qwt_plot_marker.cpp. |
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Destructor.
Definition at line 60 of file qwt_plot_marker.cpp. |
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Copy constructor.
Definition at line 69 of file qwt_plot_marker.cpp. |
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Draw the marker.
Implements QwtPlotItem. Definition at line 150 of file qwt_plot_marker.cpp. References QwtPainter::drawLine(), QwtPainter::metricsMap(), QwtDoublePoint::x(), and QwtDoublePoint::y(). |
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Definition at line 277 of file qwt_plot_marker.cpp. Referenced by setLabel(). |
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Definition at line 370 of file qwt_plot_marker.cpp. References QwtText::text(). Referenced by operator=(), and setLabel(). |
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Definition at line 399 of file qwt_plot_marker.cpp. |
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Definition at line 445 of file qwt_plot_marker.cpp. References QwtText::color(). |
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Definition at line 470 of file qwt_plot_marker.cpp. |
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Definition at line 422 of file qwt_plot_marker.cpp. |
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Definition at line 302 of file qwt_plot_marker.cpp. |
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Assignment operator.
Definition at line 79 of file qwt_plot_marker.cpp. |
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Specify the font for the label.
Definition at line 264 of file qwt_plot_marker.cpp. References QwtPlotItem::itemChanged(). Referenced by QwtPlotPrintFilter::reset(). |
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Set the label.
Definition at line 347 of file qwt_plot_marker.cpp. References font(), QwtPlotItem::itemChanged(), label(), and QwtText::makeText(). Referenced by setLabelText(). |
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Set the alignment of the label. The alignment determines where the label is drawn relative to the marker's position.
Definition at line 386 of file qwt_plot_marker.cpp. References QwtPlotItem::itemChanged(). |
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Specify a color for the label.
Definition at line 432 of file qwt_plot_marker.cpp. References QwtPlotItem::itemChanged(), and QwtText::setColor(). |
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Specify a pen for the label.
Definition at line 456 of file qwt_plot_marker.cpp. References QwtPlotItem::itemChanged(), and QwtText::setColor(). |
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Set the label text.
Definition at line 332 of file qwt_plot_marker.cpp. References setLabel(). |
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Specify a pen for the line.
Definition at line 409 of file qwt_plot_marker.cpp. References QwtPlotItem::itemChanged(). |
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Set the line style.
Definition at line 289 of file qwt_plot_marker.cpp. References QwtPlotItem::itemChanged(). |
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Assign a symbol.
Definition at line 312 of file qwt_plot_marker.cpp. References QwtPlotItem::itemChanged(). |
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Set X Value.
Definition at line 135 of file qwt_plot_marker.cpp. |
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Set Y Value.
Definition at line 141 of file qwt_plot_marker.cpp. |
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Definition at line 322 of file qwt_plot_marker.cpp. |
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Return x Value.
Definition at line 108 of file qwt_plot_marker.cpp. Referenced by operator=(). |
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Return y Value.
Definition at line 114 of file qwt_plot_marker.cpp. Referenced by operator=(). |