SysTutorials Posts

QwtIntervalSeriesData – Interface for iterating over an array of intervals. Synopsis #include <qwt_series_data.h> Inherits QwtArraySeriesData< QwtIntervalSample >. Public Member Functions QwtIntervalSeriesData (const QVector< QwtIntervalSample > &=QVector< QwtIntervalSample >()) virtual QRectF boundingRect () const Calculate the bounding rectangle. Additional Inherited Members Detailed Description Interface for iterating over an array of intervals. Constructor & Destructor Documentation QwtIntervalSeriesData::QwtIntervalSeriesData…

QwtIntervalSample – A sample of the types (x1-x2, y) or (x, y1-y2) Synopsis #include <qwt_samples.h> Public Member Functions QwtIntervalSample () QwtIntervalSample (double, const QwtInterval &) Constructor. QwtIntervalSample (double value, double min, double max) Constructor. bool operator== (const QwtIntervalSample &) const Compare operator. bool operator!= (const QwtIntervalSample &) const Compare operator. Public Attributes double value Value….

QwtIntervalData – Series of samples of a value and an interval. Synopsis #include <qwt_interval_data.h> Public Member Functions QwtIntervalData () QwtIntervalData (const QwtArray< QwtDoubleInterval > &, const QwtArray< double > &) ~QwtIntervalData () void setData (const QwtArray< QwtDoubleInterval > &, const QwtArray< double > &) size_t size () const const QwtDoubleInterval & interval (size_t i) const…

QwtInterval – A class representing an interval. Synopsis #include <qwt_interval.h> Public Types enum BorderFlag { IncludeBorders = 0x00, ExcludeMinimum = 0x01, ExcludeMaximum = 0x02, ExcludeBorders = ExcludeMinimum | ExcludeMaximum } typedef QFlags< BorderFlag > BorderFlags Border flags. Public Member Functions QwtInterval () Default Constructor. QwtInterval (double minValue, double maxValue, BorderFlags=IncludeBorders) void setInterval (double minValue, double…

QwtGraphic – A paint device for scalable graphics. Synopsis #include <qwt_graphic.h> Inherits QwtNullPaintDevice. Public Types enum RenderHint { RenderPensUnscaled = 0x1 } typedef QFlags< RenderHint > RenderHints Render hints. Public Member Functions QwtGraphic () Constructor. QwtGraphic (const QwtGraphic &) Copy constructor. virtual ~QwtGraphic () Destructor. QwtGraphic & operator= (const QwtGraphic &) Assignment operator. void reset…

QwtEventPattern::MousePattern – A pattern for mouse events. Synopsis #include <qwt_event_pattern.h> Public Member Functions MousePattern (Qt::MouseButton btn=Qt::NoButton, Qt::KeyboardModifiers modifierCodes=Qt::NoModifier) Constructor. Public Attributes Qt::MouseButton button Button. Qt::KeyboardModifiers modifiers Keyboard modifier. Detailed Description A pattern for mouse events. Author Generated automatically by Doxygen for Qwt User’s Guide from the source code.

QwtEventPattern::KeyPattern – A pattern for key events. Synopsis #include <qwt_event_pattern.h> Public Member Functions KeyPattern (int keyCode=Qt::Key_unknown, Qt::KeyboardModifiers modifierCodes=Qt::NoModifier) Constructor. Public Attributes int key Key code. Qt::KeyboardModifiers modifiers Modifiers. Detailed Description A pattern for key events. Author Generated automatically by Doxygen for Qwt User’s Guide from the source code.

QwtEventPattern – A collection of event patterns. Synopsis #include <qwt_event_pattern.h> Inherited by QwtPicker. Classes class KeyPattern A pattern for key events. class MousePattern A pattern for mouse events. Public Types enum MousePatternCode { MouseSelect1, MouseSelect2, MouseSelect3, MouseSelect4, MouseSelect5, MouseSelect6, MousePatternCount } Symbolic mouse input codes. enum KeyPatternCode { KeySelect1, KeySelect2, KeyAbort, KeyLeft, KeyRight, KeyUp, KeyDown,…

QwtDynGridLayout – The QwtDynGridLayout class lays out widgets in a grid, adjusting the number of columns and rows to the current size. Synopsis #include <qwt_dyngrid_layout.h> Inherits QLayout. Public Member Functions QwtDynGridLayout (QWidget *, int margin=0, int space=-1) QwtDynGridLayout (int space=-1) virtual ~QwtDynGridLayout () Destructor. virtual void invalidate () Invalidate all internal caches. void setMaxColumns (uint…

QwtDoubleRange – A class which controls a value within an interval. Synopsis #include <qwt_double_range.h> Inherited by QwtAbstractSlider, and QwtCounter. Public Member Functions QwtDoubleRange () virtual ~QwtDoubleRange () void setRange (double vmin, double vmax, double vstep=0.0, int pagesize=1) void setValid (bool) bool isValid () const virtual void setValue (double) double value () const void setPeriodic (bool…

QwtDoubleInterval – A class representing an interval. Synopsis #include <qwt_double_interval.h> Public Types enum BorderMode { IncludeBorders = 0, ExcludeMinimum = 1, ExcludeMaximum = 2, ExcludeBorders = ExcludeMinimum | ExcludeMaximum } Public Member Functions QwtDoubleInterval () QwtDoubleInterval (double minValue, double maxValue, int borderFlags=IncludeBorders) void setInterval (double minValue, double maxValue, int borderFlags=IncludeBorders) QwtDoubleInterval normalized () const QwtDoubleInterval…

QwtDialSimpleNeedle – A needle for dial widgets. Synopsis #include <qwt_dial_needle.h> Inherits QwtDialNeedle. Public Types enum Style { Arrow, Ray } Style of the needle. Public Member Functions QwtDialSimpleNeedle (Style, bool hasKnob=true, const QColor &mid=Qt::gray, const QColor &base=Qt::darkGray) void setWidth (double width) double width () const Protected Member Functions virtual void drawNeedle (QPainter *, double length,…

QwtDialScaleDraw – A special scale draw made for QwtDial. Synopsis #include <qwt_dial.h> Inherits QwtRoundScaleDraw. Public Member Functions QwtDialScaleDraw (QwtDial *) virtual QwtText label (double value) const void setPenWidth (uint) uint penWidth () const Detailed Description A special scale draw made for QwtDial. See also: QwtDial, QwtCompass Constructor & Destructor Documentation QwtDialScaleDraw::QwtDialScaleDraw (QwtDial * parent) [explicit]…

QwtDialNeedle – Base class for needles that can be used in a QwtDial. Synopsis #include <qwt_dial_needle.h> Inherited by QwtCompassMagnetNeedle, QwtCompassWindArrow, and QwtDialSimpleNeedle. Public Member Functions QwtDialNeedle () Constructor. virtual ~QwtDialNeedle () Destructor. virtual void setPalette (const QPalette &) const QPalette & palette () const virtual void draw (QPainter *painter, const QPointF &center, double length, double…

QwtDial – QwtDial class provides a rounded range control. Synopsis #include <qwt_dial.h> Inherits QwtAbstractSlider. Inherited by QwtAnalogClock, and QwtCompass. Public Types enum Shadow { Plain = QFrame::Plain, Raised = QFrame::Raised, Sunken = QFrame::Sunken } Frame shadow. enum Mode { RotateNeedle, RotateScale } Mode controlling whether the needle or the scale is rotating. Public Member Functions…

QwtDateScaleEngine – A scale engine for date/time values. Synopsis #include <qwt_date_scale_engine.h> Inherits QwtLinearScaleEngine. Public Member Functions QwtDateScaleEngine (Qt::TimeSpec=Qt::LocalTime) Constructor. virtual ~QwtDateScaleEngine () Destructor. void setTimeSpec (Qt::TimeSpec) Qt::TimeSpec timeSpec () const void setUtcOffset (int seconds) int utcOffset () const void setWeek0Type (QwtDate::Week0Type) QwtDate::Week0Type week0Type () const void setMaxWeeks (int) int maxWeeks () const virtual void autoScale…

QwtDateScaleDraw – A class for drawing datetime scales. Synopsis #include <qwt_date_scale_draw.h> Inherits QwtScaleDraw. Public Member Functions QwtDateScaleDraw (Qt::TimeSpec=Qt::LocalTime) Constructor. virtual ~QwtDateScaleDraw () Destructor. void setDateFormat (QwtDate::IntervalType, const QString &) QString dateFormat (QwtDate::IntervalType) const void setTimeSpec (Qt::TimeSpec) Qt::TimeSpec timeSpec () const void setUtcOffset (int seconds) int utcOffset () const void setWeek0Type (QwtDate::Week0Type) QwtDate::Week0Type week0Type () const…

QwtDate – A collection of methods around date/time values. Synopsis #include <qwt_date.h> Public Types enum Week0Type { FirstThursday, FirstDay } enum IntervalType { Millisecond, Second, Minute, Hour, Day, Week, Month, Year } enum { JulianDayForEpoch = 2440588 } Static Public Member Functions static QDate minDate () static QDate maxDate () static QDateTime toDateTime (double value,…

QwtData – QwtData defines an interface to any type of curve data. Synopsis #include <qwt_data.h> Inherited by QwtArrayData, QwtCPointerData, and QwtPolygonFData. Public Member Functions QwtData () virtual ~QwtData () virtual QwtData * copy () const =0 virtual size_t size () const =0 virtual double x (size_t i) const =0 virtual double y (size_t i) const…

QwtCurveFitter – Abstract base class for a curve fitter. Synopsis #include <qwt_curve_fitter.h> Inherited by QwtSplineCurveFitter, and QwtWeedingCurveFitter. Public Member Functions virtual ~QwtCurveFitter () Destructor. virtual QPolygonF fitCurve (const QPolygonF &polygon) const =0 Protected Member Functions QwtCurveFitter () Constructor. Detailed Description Abstract base class for a curve fitter. Member Function Documentation virtual QPolygonF QwtCurveFitter::fitCurve (const QPolygonF…