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#include <LineChart.h>

Inheritance diagram for LineChart:


qreal fillOpacity
bool interpolate
qreal lineWidth
- Properties inherited from XYChart
Direction direction
bool stacked
- Properties inherited from Chart
IndexingMode indexingMode
QQmlListProperty< ChartDataSourcevalueSources
- Properties inherited from QQuickItem
- Properties inherited from QObject

Public Member Functions

 LineChart (QQuickItem *parent=nullptr)
ChartDataSourcefillColorSource () const
Q_SIGNAL void fillColorSourceChanged ()
qreal fillOpacity () const
Q_SIGNAL void fillOpacityChanged ()
bool interpolate () const
Q_SIGNAL void interpolateChanged ()
qreal lineWidth () const
Q_SIGNAL void lineWidthChanged ()
QQmlComponentpointDelegate () const
Q_SIGNAL void pointDelegateChanged ()
void setFillColorSource (ChartDataSource *newFillColorSource)
void setFillOpacity (qreal opacity)
void setInterpolate (bool newInterpolate)
void setLineWidth (qreal width)
void setPointDelegate (QQmlComponent *newPointDelegate)
- Public Member Functions inherited from XYChart
 XYChart (QQuickItem *parent=nullptr)
 ~XYChart () override=default
ComputedRange computedRange () const
Q_SIGNAL void computedRangeChanged ()
virtual XYChart::Direction direction () const
Q_SIGNAL void directionChanged ()
virtual void setDirection (XYChart::Direction newDirection)
void setStacked (bool newStacked)
bool stacked () const
Q_SIGNAL void stackedChanged ()
virtual RangeGroupxRange () const
virtual RangeGroupyRange () const
- Public Member Functions inherited from Chart
 Chart (QQuickItem *parent=nullptr)
ChartDataSourcecolorSource () const
Q_SIGNAL void colorSourceChanged ()
Q_SIGNAL void dataChanged ()
IndexingMode indexingMode () const
Q_SIGNAL void indexingModeChanged ()
Q_INVOKABLE void insertValueSource (int index, ChartDataSource *source)
ChartDataSourcenameSource () const
Q_SIGNAL void nameSourceChanged ()
Q_INVOKABLE void removeValueSource (int index)
Q_INVOKABLE void removeValueSource (QObject *source)
void setColorSource (ChartDataSource *colorSource)
void setIndexingMode (IndexingMode newIndexingMode)
void setNameSource (ChartDataSource *nameSource)
void setShortNameSource (ChartDataSource *shortNameSource)
ChartDataSourceshortNameSource () const
Q_SIGNAL void shortNameSourceChanged ()
QList< ChartDataSource * > valueSources () const
Q_SIGNAL void valueSourcesChanged ()
DataSourcesProperty valueSourcesProperty ()
- Public Member Functions inherited from QQuickItem
 QQuickItem (QQuickItem *parent)
Qt::MouseButtons acceptedMouseButtons () const const
bool acceptHoverEvents () const const
bool acceptTouchEvents () const const
void activeFocusChanged (bool)
bool activeFocusOnTab () const const
void activeFocusOnTabChanged (bool)
bool antialiasing () const const
void antialiasingChanged (bool)
qreal baselineOffset () const const
void baselineOffsetChanged (qreal)
QBindable< qreal > bindableHeight ()
QBindable< qreal > bindableWidth ()
QBindable< qreal > bindableX ()
QBindable< qreal > bindableY ()
virtual QRectF boundingRect () const const
QQuickItemchildAt (qreal x, qreal y) const const
QList< QQuickItem * > childItems () const const
QRectF childrenRect ()
void childrenRectChanged (const QRectF &)
bool clip () const const
void clipChanged (bool)
virtual QRectF clipRect () const const
QObjectcontainmentMask () const const
void containmentMaskChanged ()
virtual bool contains (const QPointF &point) const const
QCursor cursor () const const
void dumpItemTree () const const
void enabledChanged ()
void ensurePolished ()
bool filtersChildMouseEvents () const const
Flags flags () const const
void focusChanged (bool)
void forceActiveFocus ()
void forceActiveFocus (Qt::FocusReason reason)
void grabMouse ()
QSharedPointer< QQuickItemGrabResultgrabToImage (const QSize &targetSize)
void grabTouchPoints (const QList< int > &ids)
bool hasActiveFocus () const const
bool hasFocus () const const
qreal height () const const
void heightChanged ()
qreal implicitHeight () const const
void implicitHeightChanged ()
qreal implicitWidth () const const
void implicitWidthChanged ()
virtual QVariant inputMethodQuery (Qt::InputMethodQuery query) const const
bool isAncestorOf (const QQuickItem *child) const const
bool isEnabled () const const
bool isFocusScope () const const
virtual bool isTextureProvider () const const
bool isVisible () const const
bool keepMouseGrab () const const
bool keepTouchGrab () const const
QPointF mapFromGlobal (const QPointF &point) const const
QPointF mapFromItem (const QQuickItem *item, const QPointF &point) const const
QPointF mapFromScene (const QPointF &point) const const
QRectF mapRectFromItem (const QQuickItem *item, const QRectF &rect) const const
QRectF mapRectFromScene (const QRectF &rect) const const
QRectF mapRectToItem (const QQuickItem *item, const QRectF &rect) const const
QRectF mapRectToScene (const QRectF &rect) const const
QPointF mapToGlobal (const QPointF &point) const const
QPointF mapToItem (const QQuickItem *item, const QPointF &point) const const
QPointF mapToScene (const QPointF &point) const const
QQuickItemnextItemInFocusChain (bool forward)
qreal opacity () const const
void opacityChanged ()
void parentChanged (QQuickItem *)
QQuickItemparentItem () const const
void polish ()
void resetAntialiasing ()
void resetHeight ()
void resetWidth ()
qreal rotation () const const
void rotationChanged ()
qreal scale () const const
void scaleChanged ()
QQuickItemscopedFocusItem () const const
void setAcceptedMouseButtons (Qt::MouseButtons buttons)
void setAcceptHoverEvents (bool enabled)
void setAcceptTouchEvents (bool enabled)
void setActiveFocusOnTab (bool)
void setAntialiasing (bool)
void setBaselineOffset (qreal)
void setClip (bool)
void setContainmentMask (QObject *mask)
void setCursor (const QCursor &cursor)
void setEnabled (bool)
void setFiltersChildMouseEvents (bool filter)
void setFlag (Flag flag, bool enabled)
void setFlags (Flags flags)
void setFocus (bool focus, Qt::FocusReason reason)
void setFocus (bool)
void setHeight (qreal)
void setImplicitHeight (qreal)
void setImplicitWidth (qreal)
void setKeepMouseGrab (bool keep)
void setKeepTouchGrab (bool keep)
void setOpacity (qreal)
void setParentItem (QQuickItem *parent)
void setRotation (qreal)
void setScale (qreal)
void setSize (const QSizeF &size)
void setSmooth (bool)
void setState (const QString &)
void setTransformOrigin (TransformOrigin)
void setVisible (bool)
void setWidth (qreal)
void setX (qreal)
void setY (qreal)
void setZ (qreal)
QSizeF size () const const
bool smooth () const const
void smoothChanged (bool)
void stackAfter (const QQuickItem *sibling)
void stackBefore (const QQuickItem *sibling)
QString state () const const
void stateChanged (const QString &)
virtual QSGTextureProvidertextureProvider () const const
TransformOrigin transformOrigin () const const
void transformOriginChanged (TransformOrigin)
void ungrabMouse ()
void ungrabTouchPoints ()
void unsetCursor ()
void update ()
QQuickItemviewportItem () const const
void visibleChanged ()
qreal width () const const
void widthChanged ()
QQuickWindowwindow () const const
void windowChanged (QQuickWindow *window)
qreal x () const const
void xChanged ()
qreal y () const const
void yChanged ()
qreal z () const const
void zChanged ()
- Public Member Functions inherited from QObject
 QObject (QObject *parent)
QBindable< QStringbindableObjectName ()
bool blockSignals (bool block)
const QObjectListchildren () 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< QByteArraydynamicPropertyNames () const const
virtual bool eventFilter (QObject *watched, QEvent *event)
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 QMetaObjectmetaObject () const const
void moveToThread (QThread *targetThread)
QString objectName () const const
void objectNameChanged (const QString &objectName)
QObjectparent () const const
QVariant property (const char *name) const const
 Q_CLASSINFO (Name, Value)
 Q_ENUM (...)
 Q_ENUM_NS (...)
 Q_ENUMS (...)
 Q_FLAG (...)
 Q_FLAG_NS (...)
 Q_FLAGS (...)
qobject_cast (const QObject *object)
qobject_cast (QObject *object)
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)
QThreadthread () const const

Static Public Member Functions

static LineChartAttachedqmlAttachedProperties (QObject *object)
- 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 Member Functions

void geometryChange (const QRectF &newGeometry, const QRectF &oldGeometry) override
void onDataChanged () override
QSGNodeupdatePaintNode (QSGNode *node, QQuickItem::UpdatePaintNodeData *data) override
void updatePolish () override
- Protected Member Functions inherited from XYChart
void setComputedRange (ComputedRange range)
virtual void updateComputedRange ()
- Protected Member Functions inherited from Chart
void componentComplete () override
- Protected Member Functions inherited from QQuickItem
virtual bool childMouseEventFilter (QQuickItem *item, QEvent *event)
virtual void classBegin () override
virtual void dragEnterEvent (QDragEnterEvent *event)
virtual void dragLeaveEvent (QDragLeaveEvent *event)
virtual void dragMoveEvent (QDragMoveEvent *event)
virtual void dropEvent (QDropEvent *event)
virtual bool event (QEvent *ev) override
virtual void focusInEvent (QFocusEvent *)
virtual void focusOutEvent (QFocusEvent *)
bool heightValid () const const
virtual void hoverEnterEvent (QHoverEvent *event)
virtual void hoverLeaveEvent (QHoverEvent *event)
virtual void hoverMoveEvent (QHoverEvent *event)
virtual void inputMethodEvent (QInputMethodEvent *event)
bool isComponentComplete () const const
virtual void itemChange (ItemChange change, const ItemChangeData &value)
virtual void keyPressEvent (QKeyEvent *event)
virtual void keyReleaseEvent (QKeyEvent *event)
virtual void mouseDoubleClickEvent (QMouseEvent *event)
virtual void mouseMoveEvent (QMouseEvent *event)
virtual void mousePressEvent (QMouseEvent *event)
virtual void mouseReleaseEvent (QMouseEvent *event)
virtual void mouseUngrabEvent ()
virtual void releaseResources ()
virtual void touchEvent (QTouchEvent *event)
virtual void touchUngrabEvent ()
void updateInputMethod (Qt::InputMethodQueries queries)
virtual QSGNodeupdatePaintNode (QSGNode *oldNode, UpdatePaintNodeData *updatePaintNodeData)
virtual void wheelEvent (QWheelEvent *event)
bool widthValid () const const
- Protected Member Functions inherited from QObject
virtual void childEvent (QChildEvent *event)
virtual void connectNotify (const QMetaMethod &signal)
virtual void customEvent (QEvent *event)
virtual void disconnectNotify (const QMetaMethod &signal)
bool isSignalConnected (const QMetaMethod &signal) const const
int receivers (const char *signal) const const
QObjectsender () const const
int senderSignalIndex () const const
virtual void timerEvent (QTimerEvent *event)

Additional Inherited Members

- Public Types inherited from XYChart
enum class  Direction { ZeroAtStart , ZeroAtEnd }
- Public Types inherited from Chart
using DataSourcesProperty = QQmlListProperty<ChartDataSource>
enum  IndexingMode { IndexSourceValues = 1 , IndexEachSource , IndexAllValues }
- Public Types inherited from QQuickItem
enum  Flag
enum  ItemChange
enum  TransformOrigin
- Public Attributes inherited from QQuickItem
typedef Flags
- Public Attributes inherited from QObject
typedef QObjectList

Detailed Description

A line chart.

Usage example

import QtQuick
import QtQuick.Controls
import org.kde.quickcharts as Charts
Charts.LineChart {
width: 400
height: 300
valueSources: [
Charts.ModelSource { roleName: "value1"; model: listModel },
Charts.ModelSource { roleName: "value2"; model: listModel },
Charts.ModelSource { roleName: "value3"; model: listModel }
colorSource: Charts.ArraySource { array: ["red", "green", "blue"] }
nameSource: Charts.ArraySource { array: ["Example 1", "Example 2", "Example 3"]}
ListModel {
id: listModel
ListElement { value1: 19; value2: 2; value3: 6 }
ListElement { value1: 14; value2: 20; value3: 17 }
ListElement { value1: 4; value2: 10; value3: 11 }
ListElement { value1: 5; value2: 11; value3: 9 }
ListElement { value1: 20; value2: 7; value3: 13 }
The resulting line chart.

Definition at line 80 of file LineChart.h.

Property Documentation

◆ fillColorSource

ChartDataSource * LineChart::fillColorSource

A data source that supplies color values for the line charts' fill area.

If this is not set (the default), the normal color source will be used, with the fillOpacity used as its opacity.

Definition at line 119 of file LineChart.h.

◆ fillOpacity

qreal LineChart::fillOpacity

The opacity of the area below a line.

The default is 0.0. Note that if fillColorSource is set, this value is ignored.

Definition at line 109 of file LineChart.h.

◆ interpolate

bool LineChart::interpolate

Interpolate the values in the chart so that the lines become smoothed.

Definition at line 92 of file LineChart.h.

◆ lineWidth

qreal LineChart::lineWidth

The width of a line in the chart.

Definition at line 99 of file LineChart.h.

◆ pointDelegate

QQmlComponent * LineChart::pointDelegate

A delegate that will be placed at each line chart point.

When this is not null, the specified component will be used to instantiate an object for each point in the chart. These objects will then be placed centered at positions corresponding to the points on the chart. Each instance will have access to the attached properties of LineChartAttached through LineChart attached object.

The component assigned to this property is expected to create a QQuickItem, since the created object needs to be positioned.

Definition at line 135 of file LineChart.h.

Constructor & Destructor Documentation

◆ LineChart()

LineChart::LineChart ( QQuickItem * parent = nullptr)

Definition at line 106 of file LineChart.cpp.

Member Function Documentation

◆ fillColorSource()

ChartDataSource * LineChart::fillColorSource ( ) const

Definition at line 159 of file LineChart.cpp.

◆ fillOpacity()

qreal LineChart::fillOpacity ( ) const

Definition at line 121 of file LineChart.cpp.

◆ geometryChange()

void LineChart::geometryChange ( const QRectF & newGeometry,
const QRectF & oldGeometry )

Reimplemented from QQuickItem.

Definition at line 308 of file LineChart.cpp.

◆ interpolate()

bool LineChart::interpolate ( ) const

Definition at line 111 of file LineChart.cpp.

◆ lineWidth()

qreal LineChart::lineWidth ( ) const

Definition at line 116 of file LineChart.cpp.

◆ onDataChanged()

void LineChart::onDataChanged ( )

Called when the data of a value source changes.

This method should be reimplemented by subclasses. It is called whenever the data of one of the value sources changes. Subclasses should use this to make sure that they update whatever internal state they use for rendering, then call update() to schedule rendering the item.

Implements Chart.

Definition at line 302 of file LineChart.cpp.

◆ pointDelegate()

QQmlComponent * LineChart::pointDelegate ( ) const

Definition at line 175 of file LineChart.cpp.

◆ qmlAttachedProperties()

static LineChartAttached * LineChart::qmlAttachedProperties ( QObject * object)

Definition at line 140 of file LineChart.h.

◆ setFillColorSource()

void LineChart::setFillColorSource ( ChartDataSource * newFillColorSource)

Definition at line 164 of file LineChart.cpp.

◆ setFillOpacity()

void LineChart::setFillOpacity ( qreal opacity)

Definition at line 148 of file LineChart.cpp.

◆ setInterpolate()

void LineChart::setInterpolate ( bool newInterpolate)

Definition at line 126 of file LineChart.cpp.

◆ setLineWidth()

void LineChart::setLineWidth ( qreal width)

Definition at line 137 of file LineChart.cpp.

◆ setPointDelegate()

void LineChart::setPointDelegate ( QQmlComponent * newPointDelegate)

Definition at line 180 of file LineChart.cpp.

◆ updatePaintNode()

QSGNode * LineChart::updatePaintNode ( QSGNode * node,
QQuickItem::UpdatePaintNodeData * data )

Definition at line 271 of file LineChart.cpp.

◆ updatePolish()

void LineChart::updatePolish ( )

Reimplemented from QQuickItem.

Definition at line 195 of file LineChart.cpp.

The documentation for this class was generated from the following files:
This file is part of the KDE documentation.
Documentation copyright © 1996-2024 The KDE developers.
Generated on Tue Mar 26 2024 11:13:57 by doxygen 1.10.0 written by Dimitri van Heesch, © 1997-2006

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