BarChart

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#include <BarChart.h>

Inheritance diagram for BarChart:

Public Types

enum  Orientation { HorizontalOrientation = Qt::Horizontal , VerticalOrientation = Qt::Vertical }
 
enum  WidthMode { AutoWidth = -2 }
 
- 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
 

Properties

QColor backgroundColor
 
qreal barWidth
 
Orientation orientation
 
qreal radius
 
qreal spacing
 
- Properties inherited from XYChart
Direction direction
 
bool stacked
 
RangeGroupxRange
 
RangeGroupyRange
 
- Properties inherited from Chart
ChartDataSourcecolorSource
 
IndexingMode indexingMode
 
ChartDataSourcenameSource
 
ChartDataSourceshortNameSource
 
QQmlListProperty< ChartDataSourcevalueSources
 
- Properties inherited from QQuickItem
 activeFocus
 
 activeFocusOnTab
 
 antialiasing
 
 baselineOffset
 
 childrenRect
 
 clip
 
 containmentMask
 
 enabled
 
 focus
 
 height
 
 implicitHeight
 
 implicitWidth
 
 opacity
 
 parent
 
 rotation
 
 scale
 
 smooth
 
 state
 
 transformOrigin
 
 visible
 
 width
 
 x
 
 y
 
 z
 
- Properties inherited from QObject
 objectName
 

Public Member Functions

 BarChart (QQuickItem *parent=nullptr)
 
QColor backgroundColor () const
 
Q_SIGNAL void backgroundColorChanged ()
 
qreal barWidth () const
 
Q_SIGNAL void barWidthChanged ()
 
Orientation orientation () const
 
Q_SIGNAL void orientationChanged ()
 
qreal radius () const
 
Q_SIGNAL void radiusChanged ()
 
void setBackgroundColor (const QColor &newBackgroundColor)
 
void setBarWidth (qreal newBarWidth)
 
void setOrientation (Orientation newOrientation)
 
void setRadius (qreal newRadius)
 
void setSpacing (qreal newSpacing)
 
qreal spacing () const
 
Q_SIGNAL void spacingChanged ()
 
- 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_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
 
qobject_cast (const QObject *object)
 
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)
 
QThreadthread () const const
 

Protected Member Functions

void onDataChanged () override
 
QSGNodeupdatePaintNode (QSGNode *node, QQuickItem::UpdatePaintNodeData *) 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 *)
 
virtual void geometryChange (const QRectF &newGeometry, const QRectF &oldGeometry)
 
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 updatePolish ()
 
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

- 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)
 
- Public Attributes inherited from QQuickItem
 Bottom
 
 BottomLeft
 
 BottomRight
 
 Center
 
typedef Flags
 
 ItemAcceptsDrops
 
 ItemAcceptsInputMethod
 
 ItemActiveFocusHasChanged
 
 ItemAntialiasingHasChanged
 
 ItemChildAddedChange
 
 ItemChildRemovedChange
 
 ItemClipsChildrenToShape
 
 ItemDevicePixelRatioHasChanged
 
 ItemEnabledHasChanged
 
 ItemHasContents
 
 ItemIsFocusScope
 
 ItemIsViewport
 
 ItemObservesViewport
 
 ItemOpacityHasChanged
 
 ItemParentHasChanged
 
 ItemRotationHasChanged
 
 ItemSceneChange
 
 ItemVisibleHasChanged
 
 Left
 
 Right
 
 Top
 
 TopLeft
 
 TopRight
 
- Public Attributes inherited from QObject
typedef QObjectList
 

Detailed Description

An item to render a bar chart.

This chart renders

Usage example

import QtQuick
import QtQuick.Controls
import org.kde.quickcharts as Charts
Charts.BarChart {
id: barChart
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"] }
barWidth: 20
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 bar chart.

Definition at line 27 of file BarChart.h.

Member Enumeration Documentation

◆ Orientation

Enumerator
HorizontalOrientation 

Bars are oriented horizontally, with low values left and high values right.

VerticalOrientation 

Bars are oriented vertically, with low values at the bottom and high values at the top.

Definition at line 39 of file BarChart.h.

◆ WidthMode

Helper enum to provide an easy way to set barWidth to auto.

Definition at line 36 of file BarChart.h.

Property Documentation

◆ backgroundColor

QColor BarChart::backgroundColor
readwrite

The background color of bars in the chart.

By default this is Qt::transparent. If set to something non-transparent, the chart will render backgrounds for the bars. These backgrounds will have the same width as the bars but stretch the full height.

Definition at line 96 of file BarChart.h.

◆ barWidth

qreal BarChart::barWidth
readwrite

The width of individual bars in the chart.

If set to WidthMode::AutoWidth (also the default), the width will be calculated automatically based on total chart width and item count.

Definition at line 64 of file BarChart.h.

◆ orientation

Orientation BarChart::orientation
readwrite

The orientation of bars in the chart.

By default this is Vertical.

Definition at line 84 of file BarChart.h.

◆ radius

qreal BarChart::radius
readwrite

The radius of the ends of bars in the chart in pixels.

By default this is 0, which means no rounding will be done.

Definition at line 74 of file BarChart.h.

◆ spacing

qreal BarChart::spacing
readwrite

The spacing between bars for each value source.

Note that spacing between each X axis value is determined automatically based on barWidth, spacing and total chart width. The default is 0.

Definition at line 53 of file BarChart.h.

Constructor & Destructor Documentation

◆ BarChart()

BarChart::BarChart ( QQuickItem * parent = nullptr)
explicit

Definition at line 16 of file BarChart.cpp.

Member Function Documentation

◆ backgroundColor()

QColor BarChart::backgroundColor ( ) const

Definition at line 86 of file BarChart.cpp.

◆ barWidth()

qreal BarChart::barWidth ( ) const

Definition at line 37 of file BarChart.cpp.

◆ onDataChanged()

void BarChart::onDataChanged ( )
overrideprotectedvirtual

Reimplemented from Chart.

Implements Chart.

Definition at line 151 of file BarChart.cpp.

◆ orientation()

BarChart::Orientation BarChart::orientation ( ) const

Definition at line 69 of file BarChart.cpp.

◆ radius()

qreal BarChart::radius ( ) const

Definition at line 53 of file BarChart.cpp.

◆ setBackgroundColor()

void BarChart::setBackgroundColor ( const QColor & newBackgroundColor)

Definition at line 91 of file BarChart.cpp.

◆ setBarWidth()

void BarChart::setBarWidth ( qreal newBarWidth)

Definition at line 42 of file BarChart.cpp.

◆ setOrientation()

void BarChart::setOrientation ( BarChart::Orientation newOrientation)

Definition at line 74 of file BarChart.cpp.

◆ setRadius()

void BarChart::setRadius ( qreal newRadius)

Definition at line 58 of file BarChart.cpp.

◆ setSpacing()

void BarChart::setSpacing ( qreal newSpacing)

Definition at line 26 of file BarChart.cpp.

◆ spacing()

qreal BarChart::spacing ( ) const

Definition at line 21 of file BarChart.cpp.

◆ updatePaintNode()

QSGNode * BarChart::updatePaintNode ( QSGNode * node,
QQuickItem::UpdatePaintNodeData *  )
overrideprotected

Reimplemented from QQuickItem.

Definition at line 102 of file BarChart.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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