Section 3: library functions
QwtMathMLTextEngine – Text Engine for the MathML renderer of the Qt solutions package. Synopsis #include <qwt_mathml_text_engine.h> Inherits QwtTextEngine. Public Member Functions QwtMathMLTextEngine () Constructor. virtual ~QwtMathMLTextEngine () Destructor. virtual double heightForWidth (const QFont &font, int flags, const QString &text, double width) const virtual QSizeF textSize (const QFont &font, int flags, const QString &text) const virtual…
QwtMagnifier – QwtMagnifier provides zooming, by magnifying in steps. Synopsis #include <qwt_magnifier.h> Inherits QObject. Inherited by QwtPlotMagnifier. Public Member Functions QwtMagnifier (QWidget *) virtual ~QwtMagnifier () Destructor. QWidget * parentWidget () const QWidget * parentWidget () const void setEnabled (bool) En/disable the magnifier. bool isEnabled () const void setMouseFactor (double) Change the mouse factor. double…
QwtLogTransform – Logarithmic transformation. Synopsis #include <qwt_transform.h> Inherits QwtTransform. Public Member Functions QwtLogTransform () Constructor. virtual ~QwtLogTransform () Destructor. virtual double transform (double value) const virtual double invTransform (double value) const virtual double bounded (double value) const virtual QwtTransform * copy () const Public Attributes QT_STATIC_CONST double LogMin = 1.0e-150 Smallest allowed value for logarithmic…
QwtLogScaleEngine – A scale engine for logarithmic scales. Synopsis #include <qwt_scale_engine.h> Inherits QwtScaleEngine. Public Member Functions QwtLogScaleEngine (uint base=10) virtual ~QwtLogScaleEngine () Destructor. virtual void autoScale (int maxSteps, double &x1, double &x2, double &stepSize) const virtual QwtScaleDiv divideScale (double x1, double x2, int numMajorSteps, int numMinorSteps, double stepSize=0.0) const Calculate a scale division for an…
QwtLog10ScaleEngine – A scale engine for logarithmic (base 10) scales. Synopsis #include <qwt_scale_engine.h> Inherits QwtScaleEngine. Public Member Functions virtual void autoScale (int maxSteps, double &x1, double &x2, double &stepSize) const virtual QwtScaleDiv divideScale (double x1, double x2, int numMajorSteps, int numMinorSteps, double stepSize=0.0) const virtual QwtScaleTransformation * transformation () const Protected Member Functions QwtDoubleInterval log10…
QwtLinearScaleEngine – A scale engine for linear scales. Synopsis #include <qwt_scale_engine.h> Inherits QwtScaleEngine. Inherited by QwtDateScaleEngine. Public Member Functions QwtLinearScaleEngine (uint base=10) virtual ~QwtLinearScaleEngine () Destructor. virtual void autoScale (int maxSteps, double &x1, double &x2, double &stepSize) const virtual QwtScaleDiv divideScale (double x1, double x2, int numMajorSteps, int numMinorSteps, double stepSize=0.0) const Calculate a scale…
QwtLinearColorMap – QwtLinearColorMap builds a color map from color stops. Synopsis #include <qwt_color_map.h> Inherits QwtColorMap. Public Types enum Mode { FixedColors, ScaledColors } Public Member Functions QwtLinearColorMap (QwtColorMap::Format=QwtColorMap::RGB) QwtLinearColorMap (const QColor &from, const QColor &to, QwtColorMap::Format=QwtColorMap::RGB) virtual ~QwtLinearColorMap () Destructor. void setMode (Mode) Set the mode of the color map. Mode mode () const void…
QwtLegendLabel – A widget representing something on a QwtLegend. Synopsis #include <qwt_legend_label.h> Inherits QwtTextLabel. Public Slots void setChecked (bool on) Signals void clicked () Signal, when the legend item has been clicked. void pressed () Signal, when the legend item has been pressed. void released () Signal, when the legend item has been released. void…
QwtLegendItemManager – Abstract API to bind plot items to the legend. Synopsis #include <qwt_legend_itemmanager.h> Inherited by QwtPlotItem. Public Member Functions QwtLegendItemManager () virtual ~QwtLegendItemManager () virtual void updateLegend (QwtLegend *legend) const =0 virtual QWidget * legendItem () const =0 Detailed Description Abstract API to bind plot items to the legend. Constructor & Destructor Documentation QwtLegendItemManager::QwtLegendItemManager…
QwtLegendItem – A legend label. Synopsis #include <qwt_legend_item.h> Inherits QwtTextLabel. Public Types enum IdentifierMode { NoIdentifier = 0, ShowLine = 1, ShowSymbol = 2, ShowText = 4 } Public Slots void setChecked (bool on) Signals void clicked () void pressed () void released () void checked (bool) Public Member Functions QwtLegendItem (QWidget *parent=0) QwtLegendItem (const…
QwtLegendData – Attributes of an entry on a legend. Synopsis #include <qwt_legend_data.h> Public Types enum Mode { ReadOnly, Clickable, Checkable } Mode defining how a legend entry interacts. enum Role { ModeRole, TitleRole, IconRole, UserRole = 32 } Identifier how to interprete a QVariant. Public Member Functions QwtLegendData () Constructor. ~QwtLegendData () Destructor. void setValues…
QwtLegend – The legend widget. Synopsis #include <qwt_legend.h> Inherits QwtAbstractLegend. Public Slots virtual void updateLegend (const QVariant &, const QList< QwtLegendData > &) Update the entries for an item. Signals void clicked (const QVariant &itemInfo, int index) void checked (const QVariant &itemInfo, bool on, int index) Public Member Functions QwtLegend (QWidget *parent=NULL) virtual ~QwtLegend ()…
QwtKnob – The Knob Widget. Synopsis #include <qwt_knob.h> Inherits QwtAbstractSlider. Public Types enum KnobStyle { Flat, Raised, Sunken, Styled } Style of the knob surface. enum MarkerStyle { NoMarker = -1, Tick, Triangle, Dot, Nub, Notch } Marker type. Public Member Functions QwtKnob (QWidget *parent=NULL) Constructor. virtual ~QwtKnob () Destructor. void setAlignment (Qt::Alignment) Set the…
QwtIntervalSymbol – A drawing primitive for displaying an interval like an error bar. Synopsis #include <qwt_interval_symbol.h> Public Types enum Style { NoSymbol = -1, Bar, Box, UserSymbol = 1000 } Symbol style. Public Member Functions QwtIntervalSymbol (Style=NoSymbol) QwtIntervalSymbol (const QwtIntervalSymbol &) Copy constructor. virtual ~QwtIntervalSymbol () Destructor. QwtIntervalSymbol & operator= (const QwtIntervalSymbol &) Assignment operator….
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.