QCPFinancial
Public Types | |
enum | ChartStyle { csOhlc , csCandlestick } |
enum | WidthType { wtAbsolute , wtAxisRectRatio , wtPlotCoords } |
Public Types inherited from QObject | |
typedef | QObjectList |
Public Member Functions | |
QCPFinancial (QCPAxis *keyAxis, QCPAxis *valueAxis) | |
void | addData (const QVector< double > &keys, const QVector< double > &open, const QVector< double > &high, const QVector< double > &low, const QVector< double > &close, bool alreadySorted=false) |
void | addData (double key, double open, double high, double low, double close) |
QBrush | brushNegative () const |
QBrush | brushPositive () const |
ChartStyle | chartStyle () const |
QSharedPointer< QCPFinancialDataContainer > | data () const |
virtual QCPRange | getKeyRange (bool &foundRange, QCP::SignDomain inSignDomain=QCP::sdBoth) const override |
virtual QCPRange | getValueRange (bool &foundRange, QCP::SignDomain inSignDomain=QCP::sdBoth, const QCPRange &inKeyRange=QCPRange()) const override |
QPen | penNegative () const |
QPen | penPositive () const |
virtual double | selectTest (const QPointF &pos, bool onlySelectable, QVariant *details=nullptr) const override |
virtual QCPDataSelection | selectTestRect (const QRectF &rect, bool onlySelectable) const override |
void | setBrushNegative (const QBrush &brush) |
void | setBrushPositive (const QBrush &brush) |
void | setChartStyle (ChartStyle style) |
void | setData (const QVector< double > &keys, const QVector< double > &open, const QVector< double > &high, const QVector< double > &low, const QVector< double > &close, bool alreadySorted=false) |
void | setData (QSharedPointer< QCPFinancialDataContainer > data) |
void | setPenNegative (const QPen &pen) |
void | setPenPositive (const QPen &pen) |
void | setTwoColored (bool twoColored) |
void | setWidth (double width) |
void | setWidthType (WidthType widthType) |
bool | twoColored () const |
double | width () const |
WidthType | widthType () const |
Public Member Functions inherited from QCPAbstractPlottable1D< QCPFinancialData > | |
QCPAbstractPlottable1D (QCPAxis *keyAxis, QCPAxis *valueAxis) | |
virtual int | dataCount () const override |
virtual double | dataMainKey (int index) const override |
virtual double | dataMainValue (int index) const override |
virtual QPointF | dataPixelPosition (int index) const override |
virtual double | dataSortKey (int index) const override |
virtual QCPRange | dataValueRange (int index) const override |
virtual int | findBegin (double sortKey, bool expandedRange=true) const override |
virtual int | findEnd (double sortKey, bool expandedRange=true) const override |
virtual QCPPlottableInterface1D * | interface1D () override |
virtual bool | sortKeyIsMainKey () const override |
Public Member Functions inherited from QCPAbstractPlottable | |
QCPAbstractPlottable (QCPAxis *keyAxis, QCPAxis *valueAxis) | |
bool | addToLegend () |
bool | addToLegend (QCPLegend *legend) |
bool | antialiasedFill () const |
bool | antialiasedScatters () const |
QBrush | brush () const |
const QPointF | coordsToPixels (double key, double value) const |
void | coordsToPixels (double key, double value, double &x, double &y) const |
QCPAxis * | keyAxis () const |
QString | name () const |
QPen | pen () const |
void | pixelsToCoords (const QPointF &pixelPos, double &key, double &value) const |
void | pixelsToCoords (double x, double y, double &key, double &value) const |
bool | removeFromLegend () const |
bool | removeFromLegend (QCPLegend *legend) const |
void | rescaleAxes (bool onlyEnlarge=false) const |
void | rescaleKeyAxis (bool onlyEnlarge=false) const |
void | rescaleValueAxis (bool onlyEnlarge=false, bool inKeyRange=false) const |
QCP::SelectionType | selectable () const |
bool | selected () const |
QCPDataSelection | selection () const |
QCPSelectionDecorator * | selectionDecorator () const |
void | setAntialiasedFill (bool enabled) |
void | setAntialiasedScatters (bool enabled) |
void | setBrush (const QBrush &brush) |
void | setKeyAxis (QCPAxis *axis) |
void | setName (const QString &name) |
void | setPen (const QPen &pen) |
Q_SLOT void | setSelectable (QCP::SelectionType selectable) |
Q_SLOT void | setSelection (QCPDataSelection selection) |
void | setSelectionDecorator (QCPSelectionDecorator *decorator) |
void | setValueAxis (QCPAxis *axis) |
QCPAxis * | valueAxis () const |
Public Member Functions inherited from QCPLayerable | |
QCPLayerable (QCustomPlot *plot, QString targetLayer=QString(), QCPLayerable *parentLayerable=nullptr) | |
bool | antialiased () const |
QCPLayer * | layer () const |
QCPLayerable * | parentLayerable () const |
QCustomPlot * | parentPlot () const |
bool | realVisibility () const |
void | setAntialiased (bool enabled) |
bool | setLayer (const QString &layerName) |
Q_SLOT bool | setLayer (QCPLayer *layer) |
void | setVisible (bool on) |
bool | visible () const |
Public Member Functions inherited from QObject | |
QObject (QObject *parent) | |
QBindable< QString > | bindableObjectName () |
bool | blockSignals (bool block) |
const QObjectList & | children () const const |
QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const |
void | deleteLater () |
void | destroyed (QObject *obj) |
bool | disconnect (const char *signal, const QObject *receiver, const char *method) const const |
bool | disconnect (const QObject *receiver, const char *method) const const |
void | dumpObjectInfo () const const |
void | dumpObjectTree () const const |
QList< QByteArray > | dynamicPropertyNames () const const |
virtual bool | event (QEvent *e) |
virtual bool | eventFilter (QObject *watched, QEvent *event) |
T | findChild (const QString &name, Qt::FindChildOptions options) const const |
QList< T > | findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const |
QList< T > | findChildren (const QString &name, Qt::FindChildOptions options) const const |
QList< T > | findChildren (Qt::FindChildOptions options) const const |
bool | inherits (const char *className) const const |
void | installEventFilter (QObject *filterObj) |
bool | isQuickItemType () const const |
bool | isWidgetType () const const |
bool | isWindowType () const const |
void | killTimer (int id) |
virtual const QMetaObject * | metaObject () const const |
void | moveToThread (QThread *targetThread) |
QString | objectName () const const |
void | objectNameChanged (const QString &objectName) |
QObject * | parent () const const |
QVariant | property (const char *name) const const |
Q_CLASSINFO (Name, Value) | |
Q_EMIT Q_EMIT | |
Q_ENUM (...) | |
Q_ENUM_NS (...) | |
Q_ENUMS (...) | |
Q_FLAG (...) | |
Q_FLAG_NS (...) | |
Q_FLAGS (...) | |
Q_GADGET Q_GADGET | |
Q_GADGET_EXPORT (EXPORT_MACRO) | |
Q_INTERFACES (...) | |
Q_INVOKABLE Q_INVOKABLE | |
Q_MOC_INCLUDE Q_MOC_INCLUDE | |
Q_NAMESPACE Q_NAMESPACE | |
Q_NAMESPACE_EXPORT (EXPORT_MACRO) | |
Q_OBJECT Q_OBJECT | |
Q_PROPERTY (...) | |
Q_REVISION Q_REVISION | |
Q_SET_OBJECT_NAME (Object) | |
Q_SIGNAL Q_SIGNAL | |
Q_SIGNALS Q_SIGNALS | |
Q_SLOT Q_SLOT | |
Q_SLOTS Q_SLOTS | |
T | qobject_cast (const QObject *object) |
T | qobject_cast (QObject *object) |
QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT | |
void | removeEventFilter (QObject *obj) |
void | setObjectName (const QString &name) |
void | setObjectName (QAnyStringView name) |
void | setParent (QObject *parent) |
bool | setProperty (const char *name, const QVariant &value) |
bool | setProperty (const char *name, QVariant &&value) |
bool | signalsBlocked () const const |
int | startTimer (int interval, Qt::TimerType timerType) |
int | startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType) |
QThread * | thread () const const |
Public Member Functions inherited from QCPPlottableInterface1D |
Static Public Member Functions | |
static QCPFinancialDataContainer | timeSeriesToOhlc (const QVector< double > &time, const QVector< double > &value, double timeBinSize, double timeBinOffset=0) |
Static Public Member Functions inherited from QObject | |
QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type) |
QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type) |
QMetaObject::Connection | connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type) |
QMetaObject::Connection | connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type) |
QMetaObject::Connection | connect (const QObject *sender, PointerToMemberFunction signal, Functor functor) |
bool | disconnect (const QMetaObject::Connection &connection) |
bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method) |
bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method) |
bool | disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method) |
QString | tr (const char *sourceText, const char *disambiguation, int n) |
Protected Attributes | |
QBrush | mBrushNegative |
QBrush | mBrushPositive |
ChartStyle | mChartStyle |
QPen | mPenNegative |
QPen | mPenPositive |
bool | mTwoColored |
double | mWidth |
WidthType | mWidthType |
Protected Attributes inherited from QCPAbstractPlottable1D< QCPFinancialData > | |
QSharedPointer< QCPDataContainer< QCPFinancialData > > | mDataContainer |
Protected Attributes inherited from QCPAbstractPlottable | |
bool | mAntialiasedFill |
bool | mAntialiasedScatters |
QBrush | mBrush |
QPointer< QCPAxis > | mKeyAxis |
QString | mName |
QPen | mPen |
QCP::SelectionType | mSelectable |
QCPDataSelection | mSelection |
QCPSelectionDecorator * | mSelectionDecorator |
QPointer< QCPAxis > | mValueAxis |
Protected Attributes inherited from QCPLayerable | |
bool | mAntialiased |
QCPLayer * | mLayer |
QPointer< QCPLayerable > | mParentLayerable |
QCustomPlot * | mParentPlot |
bool | mVisible |
Additional Inherited Members | |
Properties inherited from QObject | |
objectName | |
Signals inherited from QCPAbstractPlottable | |
void | selectableChanged (QCP::SelectionType selectable) |
void | selectionChanged (bool selected) |
void | selectionChanged (const QCPDataSelection &selection) |
Signals inherited from QCPLayerable | |
void | layerChanged (QCPLayer *newLayer) |
Detailed Description
A plottable representing a financial stock chart.
This plottable represents time series data binned to certain intervals, mainly used for stock charts. The two common representations OHLC (Open-High-Low-Close) bars and Candlesticks can be set via setChartStyle.
The data is passed via setData as a set of open/high/low/close values at certain keys (typically times). This means the data must be already binned appropriately. If data is only available as a series of values (e.g. price against time), you can use the static convenience function timeSeriesToOhlc to generate binned OHLC-data which can then be passed to setData.
The width of the OHLC bars/candlesticks can be controlled with setWidth and setWidthType. A typical choice is to set the width type to wtPlotCoords (the default) and the width to (or slightly less than) one time bin interval width.
Changing the appearance
Charts can be either single- or two-colored (setTwoColored). If set to be single-colored, lines are drawn with the plottable's pen (setPen) and fills with the brush (setBrush).
If set to two-colored, positive changes of the value during an interval (close >= open) are represented with a different pen and brush than negative changes (close < open). These can be configured with setPenPositive, setPenNegative, setBrushPositive, and setBrushNegative. In two-colored mode, the normal plottable pen/brush is ignored. Upon selection however, the normal selected pen/brush (provided by the selectionDecorator) is used, irrespective of whether the chart is single- or two-colored.
Usage
Like all data representing objects in QCustomPlot, the QCPFinancial is a plottable (QCPAbstractPlottable). So the plottable-interface of QCustomPlot applies (QCustomPlot::plottable, QCustomPlot::removePlottable, etc.)
Usually, you first create an instance:
which registers it with the QCustomPlot instance of the passed axes. Note that this QCustomPlot instance takes ownership of the plottable, so do not delete it manually but use QCustomPlot::removePlottable() instead. The newly created plottable can be modified, e.g.:
Here we have used the static helper method timeSeriesToOhlc, to turn a time-price data series into a 24-hour binned open-high-low-close data series as QCPFinancial uses.
Definition at line 6189 of file qcustomplot.h.
Member Enumeration Documentation
◆ ChartStyle
Defines the possible representations of OHLC data in the plot.
- See also
- setChartStyle
Enumerator | |
---|---|
csOhlc | Open-High-Low-Close bar representation. |
csCandlestick | Candlestick representation. |
Definition at line 6220 of file qcustomplot.h.
◆ WidthType
Defines the ways the width of the financial bar can be specified. Thus it defines what the number passed to setWidth actually means.
- See also
- setWidthType, setWidth
Enumerator | |
---|---|
wtAbsolute | width is in absolute pixels |
wtAxisRectRatio | width is given by a fraction of the axis rect size |
wtPlotCoords | width is in key coordinates and thus scales with the key axis range |
Definition at line 6209 of file qcustomplot.h.
Constructor & Destructor Documentation
◆ QCPFinancial()
Constructs a financial chart which uses keyAxis as its key axis ("x") and valueAxis as its value axis ("y"). keyAxis and valueAxis must reside in the same QCustomPlot instance and not have the same orientation. If either of these restrictions is violated, a corresponding message is printed to the debug output (qDebug), the construction is not aborted, though.
The created QCPFinancial is automatically registered with the QCustomPlot instance inferred from keyAxis. This QCustomPlot instance takes ownership of the QCPFinancial, so do not delete it manually but use QCustomPlot::removePlottable() instead.
Definition at line 27100 of file qcustomplot.cpp.
◆ ~QCPFinancial()
|
overridevirtual |
Definition at line 27114 of file qcustomplot.cpp.
Member Function Documentation
◆ addData() [1/2]
void QCPFinancial::addData | ( | const QVector< double > & | keys, |
const QVector< double > & | open, | ||
const QVector< double > & | high, | ||
const QVector< double > & | low, | ||
const QVector< double > & | close, | ||
bool | alreadySorted = false ) |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Adds the provided points in keys, open, high, low and close to the current data. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.
If you can guarantee that the passed data points are sorted by keys in ascending order, you can set alreadySorted to true, to improve performance by saving a sorting run.
Alternatively, you can also access and modify the data directly via the data method, which returns a pointer to the internal data container.
- See also
- timeSeriesToOhlc
Definition at line 27270 of file qcustomplot.cpp.
◆ addData() [2/2]
void QCPFinancial::addData | ( | double | key, |
double | open, | ||
double | high, | ||
double | low, | ||
double | close ) |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Adds the provided data point as key, open, high, low and close to the current data.
Alternatively, you can also access and modify the data directly via the data method, which returns a pointer to the internal data container.
- See also
- timeSeriesToOhlc
Definition at line 27302 of file qcustomplot.cpp.
◆ brushNegative()
|
inline |
Definition at line 6235 of file qcustomplot.h.
◆ brushPositive()
|
inline |
Definition at line 6234 of file qcustomplot.h.
◆ candlestickSelectTest()
|
protected |
This method is a helper function for selectTest. It is used to test for selection when the chart style is csCandlestick. It only tests against the data points between begin and end.
Like selectTest, this method returns the shortest distance of pos to the graphical representation of the plottable, and closestDataPoint will point to the respective data point.
Definition at line 27770 of file qcustomplot.cpp.
◆ chartStyle()
|
inline |
Definition at line 6230 of file qcustomplot.h.
◆ data()
|
inline |
Returns a pointer to the internal data storage of type QCPFinancialDataContainer. You may use it to directly manipulate the data, which may be more convenient and faster than using the regular setData or addData methods, in certain situations.
Definition at line 6229 of file qcustomplot.h.
◆ draw()
|
overrideprotectedvirtual |
This function draws the layerable with the specified painter. It is only called by QCustomPlot, if the layerable is visible (setVisible).
Before this function is called, the painter's antialiasing state is set via applyDefaultAntialiasingHint, see the documentation there. Further, the clipping rectangle was set to clipRect.
Implements QCPAbstractPlottable.
Definition at line 27447 of file qcustomplot.cpp.
◆ drawCandlestickPlot()
|
protected |
Draws the data from begin to end-1 as Candlesticks with the provided painter.
This method is a helper function for draw. It is used when the chart style is csCandlestick.
Definition at line 27603 of file qcustomplot.cpp.
◆ drawLegendIcon()
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overrideprotectedvirtual |
called by QCPLegend::draw (via QCPPlottableLegendItem::draw) to create a graphical representation of this plottable inside rect, next to the plottable name.
The passed painter has its cliprect set to rect, so painting outside of rect won't appear outside the legend icon border.
Implements QCPAbstractPlottable.
Definition at line 27482 of file qcustomplot.cpp.
◆ drawOhlcPlot()
|
protected |
Draws the data from begin to end-1 as OHLC bars with the provided painter.
This method is a helper function for draw. It is used when the chart style is csOhlc.
Definition at line 27546 of file qcustomplot.cpp.
◆ getKeyRange()
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overridevirtual |
Returns the coordinate range that all data in this plottable span in the key axis dimension. For logarithmic plots, one can set inSignDomain to either QCP::sdNegative or QCP::sdPositive in order to restrict the returned range to that sign domain. E.g. when only negative range is wanted, set inSignDomain to QCP::sdNegative and all positive points will be ignored for range calculation. For no restriction, just set inSignDomain to QCP::sdBoth (default). foundRange is an output parameter that indicates whether a range could be found or not. If this is false, you shouldn't use the returned range (e.g. no points in data).
Note that foundRange is not the same as QCPRange::validRange, since the range returned by this function may have size zero (e.g. when there is only one data point). In this case foundRange would return true, but the returned range is not a valid range in terms of QCPRange::validRange.
- See also
- rescaleAxes, getValueRange
Implements QCPAbstractPlottable.
Definition at line 27373 of file qcustomplot.cpp.
◆ getPixelWidth()
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protected |
This function is used to determine the width of the bar at coordinate key, according to the specified width (setWidth) and width type (setWidthType). Provide the pixel position of key in keyPixel (because usually this was already calculated via QCPAxis::coordToPixel when this function is called).
It returns the number of pixels the bar extends to higher keys, relative to the key coordinate. So with a non-reversed horizontal axis, the return value is positive. With a reversed horizontal axis, the return value is negative. This is important so the open/close flags on the csOhlc bar are drawn to the correct side.
Definition at line 27680 of file qcustomplot.cpp.
◆ getValueRange()
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overridevirtual |
Returns the coordinate range that the data points in the specified key range (inKeyRange) span in the value axis dimension. For logarithmic plots, one can set inSignDomain to either QCP::sdNegative or QCP::sdPositive in order to restrict the returned range to that sign domain. E.g. when only negative range is wanted, set inSignDomain to QCP::sdNegative and all positive points will be ignored for range calculation. For no restriction, just set inSignDomain to QCP::sdBoth (default). foundRange is an output parameter that indicates whether a range could be found or not. If this is false, you shouldn't use the returned range (e.g. no points in data).
If inKeyRange has both lower and upper bound set to zero (is equal to QCPRange()
), all data points are considered, without any restriction on the keys.
Note that foundRange is not the same as QCPRange::validRange, since the range returned by this function may have size zero (e.g. when there is only one data point). In this case foundRange would return true, but the returned range is not a valid range in terms of QCPRange::validRange.
- See also
- rescaleAxes, getKeyRange
Implements QCPAbstractPlottable.
Definition at line 27388 of file qcustomplot.cpp.
◆ getVisibleDataBounds()
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protected |
called by the drawing methods to determine which data (key) range is visible at the current key axis range setting, so only that needs to be processed.
begin returns an iterator to the lowest data point that needs to be taken into account when plotting. Note that in order to get a clean plot all the way to the edge of the axis rect, begin may still be just outside the visible range.
end returns the iterator just above the highest data point that needs to be taken into account. Same as before, end may also lie just outside of the visible range
if the plottable contains no data, both begin and end point to constEnd
.
Definition at line 27850 of file qcustomplot.cpp.
◆ ohlcSelectTest()
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protected |
This method is a helper function for selectTest. It is used to test for selection when the chart style is csOhlc. It only tests against the data points between begin and end.
Like selectTest, this method returns the shortest distance of pos to the graphical representation of the plottable, and closestDataPoint will point to the respective data point.
Definition at line 27723 of file qcustomplot.cpp.
◆ penNegative()
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inline |
Definition at line 6237 of file qcustomplot.h.
◆ penPositive()
|
inline |
Definition at line 6236 of file qcustomplot.h.
◆ selectionHitBox()
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protected |
Returns the hit box in pixel coordinates that will be used for data selection with the selection rect (selectTestRect), of the data point given by it.
Definition at line 27868 of file qcustomplot.cpp.
◆ selectTest()
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overridevirtual |
Implements a selectTest specific to this plottable's point geometry.
If details is not 0, it will be set to a QCPDataSelection, describing the closest data point to pos.
\seebaseclassmethod QCPAbstractPlottable::selectTest
Reimplemented from QCPAbstractPlottable1D< QCPFinancialData >.
Definition at line 27338 of file qcustomplot.cpp.
◆ selectTestRect()
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overridevirtual |
Returns a data selection containing all the data points of this plottable which are contained (or hit by) rect. This is used mainly in the selection rect interaction for data selection (data selection mechanism).
If onlySelectable is true, an empty QCPDataSelection is returned if this plottable is not selectable (i.e. if QCPAbstractPlottable::setSelectable is QCP::stNone).
- Note
- rect must be a normalized rect (positive or zero width and height). This is especially important when using the rect of QCPSelectionRect::accepted, which is not necessarily normalized. Use
QRect::normalized()
when passing a rect which might not be normalized.
Reimplemented from QCPAbstractPlottable1D< QCPFinancialData >.
Definition at line 27310 of file qcustomplot.cpp.
◆ setBrushNegative()
void QCPFinancial::setBrushNegative | ( | const QBrush & | brush | ) |
If setTwoColored is set to true, this function controls the brush that is used to draw fills of data points with a negative trend (i.e. bars/candlesticks with close < open).
If twoColored is false, the normal plottable's pen and brush are used (setPen, setBrush).
- See also
- setBrushPositive, setPenNegative, setPenPositive
Definition at line 27223 of file qcustomplot.cpp.
◆ setBrushPositive()
void QCPFinancial::setBrushPositive | ( | const QBrush & | brush | ) |
If setTwoColored is set to true, this function controls the brush that is used to draw fills of data points with a positive trend (i.e. bars/candlesticks with close >= open).
If twoColored is false, the normal plottable's pen and brush are used (setPen, setBrush).
- See also
- setBrushNegative, setPenPositive, setPenNegative
Definition at line 27209 of file qcustomplot.cpp.
◆ setChartStyle()
void QCPFinancial::setChartStyle | ( | QCPFinancial::ChartStyle | style | ) |
Sets which representation style shall be used to display the OHLC data.
Definition at line 27158 of file qcustomplot.cpp.
◆ setData() [1/2]
void QCPFinancial::setData | ( | const QVector< double > & | keys, |
const QVector< double > & | open, | ||
const QVector< double > & | high, | ||
const QVector< double > & | low, | ||
const QVector< double > & | close, | ||
bool | alreadySorted = false ) |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Replaces the current data with the provided points in keys, open, high, low and close. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.
If you can guarantee that the passed data points are sorted by keys in ascending order, you can set alreadySorted to true, to improve performance by saving a sorting run.
- See also
- addData, timeSeriesToOhlc
Definition at line 27149 of file qcustomplot.cpp.
◆ setData() [2/2]
void QCPFinancial::setData | ( | QSharedPointer< QCPFinancialDataContainer > | data | ) |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Replaces the current data container with the provided data container.
Since a QSharedPointer is used, multiple QCPFinancials may share the same data container safely. Modifying the data in the container will then affect all financials that share the container. Sharing can be achieved by simply exchanging the data containers wrapped in shared pointers:
If you do not wish to share containers, but create a copy from an existing container, rather use the QCPDataContainer<DataType>::set method on the financial's data container directly:
- See also
- addData, timeSeriesToOhlc
Definition at line 27133 of file qcustomplot.cpp.
◆ setPenNegative()
void QCPFinancial::setPenNegative | ( | const QPen & | pen | ) |
If setTwoColored is set to true, this function controls the pen that is used to draw outlines of data points with a negative trend (i.e. bars/candlesticks with close < open).
If twoColored is false, the normal plottable's pen and brush are used (setPen, setBrush).
- See also
- setPenPositive, setBrushNegative, setBrushPositive
Definition at line 27251 of file qcustomplot.cpp.
◆ setPenPositive()
void QCPFinancial::setPenPositive | ( | const QPen & | pen | ) |
If setTwoColored is set to true, this function controls the pen that is used to draw outlines of data points with a positive trend (i.e. bars/candlesticks with close >= open).
If twoColored is false, the normal plottable's pen and brush are used (setPen, setBrush).
- See also
- setPenNegative, setBrushPositive, setBrushNegative
Definition at line 27237 of file qcustomplot.cpp.
◆ setTwoColored()
void QCPFinancial::setTwoColored | ( | bool | twoColored | ) |
Sets whether this chart shall contrast positive from negative trends per data point by using two separate colors to draw the respective bars/candlesticks.
If twoColored is false, the normal plottable's pen and brush are used (setPen, setBrush).
Definition at line 27195 of file qcustomplot.cpp.
◆ setWidth()
void QCPFinancial::setWidth | ( | double | width | ) |
Sets the width of the individual bars/candlesticks to width in plot key coordinates.
A typical choice is to set it to (or slightly less than) one bin interval width.
Definition at line 27168 of file qcustomplot.cpp.
◆ setWidthType()
void QCPFinancial::setWidthType | ( | QCPFinancial::WidthType | widthType | ) |
Sets how the width of the financial bars is defined. See the documentation of WidthType for an explanation of the possible values for widthType.
The default value is wtPlotCoords.
- See also
- setWidth
Definition at line 27181 of file qcustomplot.cpp.
◆ timeSeriesToOhlc()
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static |
A convenience function that converts time series data (value against time) to OHLC binned data points. The return value can then be passed on to QCPFinancialDataContainer::set(const QCPFinancialDataContainer&).
The size of the bins can be controlled with timeBinSize in the same units as time is given. For example, if the unit of time is seconds and single OHLC/Candlesticks should span an hour each, set timeBinSize to 3600.
timeBinOffset allows to control precisely at what time coordinate a bin should start. The value passed as timeBinOffset doesn't need to be in the range encompassed by the time keys. It merely defines the mathematical offset/phase of the bins that will be used to process the data.
Definition at line 27407 of file qcustomplot.cpp.
◆ twoColored()
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inline |
Definition at line 6233 of file qcustomplot.h.
◆ width()
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inline |
Definition at line 6231 of file qcustomplot.h.
◆ widthType()
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inline |
Definition at line 6232 of file qcustomplot.h.
Member Data Documentation
◆ mBrushNegative
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protected |
Definition at line 6270 of file qcustomplot.h.
◆ mBrushPositive
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protected |
Definition at line 6270 of file qcustomplot.h.
◆ mChartStyle
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protected |
Definition at line 6266 of file qcustomplot.h.
◆ mPenNegative
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protected |
Definition at line 6271 of file qcustomplot.h.
◆ mPenPositive
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protected |
Definition at line 6271 of file qcustomplot.h.
◆ mTwoColored
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protected |
Definition at line 6269 of file qcustomplot.h.
◆ mWidth
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protected |
Definition at line 6267 of file qcustomplot.h.
◆ mWidthType
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protected |
Definition at line 6268 of file qcustomplot.h.
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