Subgroup: other

Class: QgsHistogramWidget¶

class qgis.gui.QgsHistogramWidget¶

Bases: PyQt5.QtWidgets.QWidget

Graphical histogram for displaying distributions of field values.

New in version 2.9: Methods

`acceptDrops`
`accessibleDescription`
`accessibleName`
`actionEvent`
`actions`
`activateWindow`
`addAction`
`addActions`
`adjustSize`
`autoFillBackground`
`backgroundRole`
`baseSize`
`blockSignals`
`brush`	Returns the brush used when drawing histogram bars.
`changeEvent`
`childAt`	childAt(self, int, int) -> QWidget
`childEvent`
`children`
`childrenRect`
`childrenRegion`
`clearFocus`
`clearMask`
`close`
`closeEvent`
`colorCount`
`connectNotify`
`contentsMargins`
`contentsRect`
`contextMenuEvent`
`contextMenuPolicy`
`create`
`createWindowContainer`
`cursor`
`customEvent`
`deleteLater`
`depth`
`destroy`
`devType`
`devicePixelRatio`
`devicePixelRatioF`
`devicePixelRatioFScale`
`disconnect`
`disconnectNotify`
`dragEnterEvent`
`dragLeaveEvent`
`dragMoveEvent`
`drawHistogram`	Updates and redraws the histogram.
`dropEvent`
`dumpObjectInfo`
`dumpObjectTree`
`dynamicPropertyNames`
`effectiveWinId`
`ensurePolished`
`enterEvent`
`event`
`eventFilter`
`find`
`findChild`	findChild(self, Tuple, name: str = ‘’, options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) -> QObject
`findChildren`	findChildren(self, Tuple, name: str = ‘’, options: Union[Qt.FindChildOptions, Qt.FindChildOption] = Qt.FindChildrenRecursively) -> List[QObject]
`focusInEvent`
`focusNextChild`
`focusNextPrevChild`
`focusOutEvent`
`focusPolicy`
`focusPreviousChild`
`focusProxy`
`focusWidget`
`font`
`fontInfo`
`fontMetrics`
`foregroundRole`
`frameGeometry`
`frameSize`
`geometry`
`getContentsMargins`
`grab`
`grabGesture`
`grabKeyboard`
`grabMouse`	grabMouse(self, Union[QCursor, Qt.CursorShape])
`grabShortcut`
`graduatedRanges`	Returns the graduated ranges associated with the histogram.
`graphicsEffect`
`graphicsProxyWidget`
`hasFocus`
`hasHeightForWidth`
`hasMouseTracking`
`hasTabletTracking`
`height`
`heightForWidth`
`heightMM`
`hide`
`hideEvent`
`inherits`
`initPainter`
`inputMethodEvent`
`inputMethodHints`
`inputMethodQuery`
`insertAction`
`insertActions`
`installEventFilter`
`isActiveWindow`
`isAncestorOf`
`isEnabled`
`isEnabledTo`
`isFullScreen`
`isHidden`
`isLeftToRight`
`isMaximized`
`isMinimized`
`isModal`
`isRightToLeft`
`isSignalConnected`
`isVisible`
`isVisibleTo`
`isWidgetType`
`isWindow`
`isWindowModified`
`isWindowType`
`keyPressEvent`
`keyReleaseEvent`
`keyboardGrabber`
`killTimer`
`layer`	Returns the layer currently associated with the widget.
`layout`
`layoutDirection`
`leaveEvent`
`locale`
`logicalDpiX`
`logicalDpiY`
`lower`
`mapFrom`
`mapFromGlobal`
`mapFromParent`
`mapTo`
`mapToGlobal`
`mapToParent`
`mask`
`maximumHeight`
`maximumSize`
`maximumWidth`
`metaObject`
`metric`
`minimumHeight`
`minimumSize`
`minimumSizeHint`
`minimumWidth`
`mouseDoubleClickEvent`
`mouseGrabber`
`mouseMoveEvent`
`mousePressEvent`
`mouseReleaseEvent`
`move`	move(self, int, int)
`moveEvent`
`moveToThread`
`nativeEvent`
`nativeParentWidget`
`nextInFocusChain`
`normalGeometry`
`objectName`
`overrideWindowFlags`
`overrideWindowState`
`paintEngine`
`paintEvent`
`paintingActive`
`palette`
`parent`
`parentWidget`
`pen`	Returns the pen used when drawing histogram bars.
`physicalDpiX`
`physicalDpiY`
`pos`
`previousInFocusChain`
`property`
`pyqtConfigure`	Each keyword argument is either the name of a Qt property or a Qt signal.
`raise_`
`receivers`
`rect`
`refresh`	Redraws the histogram.
`refreshValues`	Refreshes the values for the histogram by fetching them from the layer.
`releaseKeyboard`
`releaseMouse`
`releaseShortcut`
`removeAction`
`removeEventFilter`
`render`	render(self, QPainter, targetOffset: QPoint = QPoint(), sourceRegion: QRegion = QRegion(), flags: Union[QWidget.RenderFlags, QWidget.RenderFlag] = QWidget.RenderFlags(QWidget.DrawWindowBackground\|QWidget.DrawChildren))
`repaint`	repaint(self, int, int, int, int)
`resize`	resize(self, int, int)
`resizeEvent`
`restoreGeometry`
`saveGeometry`
`scroll`	scroll(self, int, int, QRect)
`sender`
`senderSignalIndex`
`setAcceptDrops`
`setAccessibleDescription`
`setAccessibleName`
`setAttribute`
`setAutoFillBackground`
`setBackgroundRole`
`setBaseSize`	setBaseSize(self, QSize)
`setBrush`	Sets the brush used for drawing histogram bars.
`setContentsMargins`	setContentsMargins(self, QMargins)
`setContextMenuPolicy`
`setCursor`
`setDisabled`
`setEnabled`
`setFixedHeight`
`setFixedSize`	setFixedSize(self, int, int)
`setFixedWidth`
`setFocus`	setFocus(self, Qt.FocusReason)
`setFocusPolicy`
`setFocusProxy`
`setFont`
`setForegroundRole`
`setGeometry`	setGeometry(self, int, int, int, int)
`setGraduatedRanges`	Sets the graduated ranges associated with the histogram.
`setGraphicsEffect`
`setHidden`
`setInputMethodHints`
`setLayer`	Sets the vector layer associated with the histogram.
`setLayout`
`setLayoutDirection`
`setLocale`
`setMask`	setMask(self, QRegion)
`setMaximumHeight`
`setMaximumSize`	setMaximumSize(self, QSize)
`setMaximumWidth`
`setMinimumHeight`
`setMinimumSize`	setMinimumSize(self, QSize)
`setMinimumWidth`
`setMouseTracking`
`setObjectName`
`setPalette`
`setParent`	setParent(self, QWidget, Union[Qt.WindowFlags, Qt.WindowType])
`setPen`	Sets the pen to use when drawing histogram bars.
`setProperty`
`setShortcutAutoRepeat`
`setShortcutEnabled`
`setSizeIncrement`	setSizeIncrement(self, QSize)
`setSizePolicy`	setSizePolicy(self, QSizePolicy.Policy, QSizePolicy.Policy)
`setSourceFieldExp`	Sets the source field or expression to use for values in the histogram.
`setStatusTip`
`setStyle`
`setStyleSheet`
`setTabOrder`
`setTabletTracking`
`setToolTip`
`setToolTipDuration`
`setUpdatesEnabled`
`setVisible`
`setWhatsThis`
`setWindowFilePath`
`setWindowFlag`
`setWindowFlags`
`setWindowIcon`
`setWindowIconText`
`setWindowModality`
`setWindowModified`
`setWindowOpacity`
`setWindowRole`
`setWindowState`
`setWindowTitle`
`setXAxisTitle`	Sets the title for the histogram’s x-axis.
`setYAxisTitle`	Sets the title for the histogram’s y-axis.
`sharedPainter`
`show`
`showEvent`
`showFullScreen`
`showMaximized`
`showMinimized`
`showNormal`
`signalsBlocked`
`size`
`sizeHint`
`sizeIncrement`
`sizePolicy`
`sourceFieldExp`	Returns the source field name or expression used to calculate values displayed in the histogram.
`stackUnder`
`startTimer`
`statusTip`
`style`
`styleSheet`
`tabletEvent`
`testAttribute`
`thread`
`timerEvent`
`toolTip`
`toolTipDuration`
`tr`
`underMouse`
`ungrabGesture`
`unsetCursor`
`unsetLayoutDirection`
`unsetLocale`
`update`	update(self, QRect)
`updateGeometry`
`updateMicroFocus`
`updatesEnabled`
`visibleRegion`
`whatsThis`
`wheelEvent`
`width`
`widthMM`
`winId`
`window`
`windowFilePath`
`windowFlags`
`windowHandle`
`windowIcon`
`windowIconText`
`windowModality`
`windowOpacity`
`windowRole`
`windowState`
`windowTitle`
`windowType`
`x`
`xAxisTitle`	Returns the title for the histogram’s x-axis.
`y`
`yAxisTitle`	Returns the title for the histogram’s y-axis.

Attributes

`DrawChildren`
`DrawWindowBackground`
`IgnoreMask`
`PdmDepth`
`PdmDevicePixelRatio`
`PdmDevicePixelRatioScaled`
`PdmDpiX`
`PdmDpiY`
`PdmHeight`
`PdmHeightMM`
`PdmNumColors`
`PdmPhysicalDpiX`
`PdmPhysicalDpiY`
`PdmWidth`
`PdmWidthMM`
`customContextMenuRequested`	customContextMenuRequested(self, QPoint) [signal]
`destroyed`	destroyed(self, QObject = None) [signal]
`objectNameChanged`	objectNameChanged(self, str) [signal]
`staticMetaObject`
`windowIconChanged`	windowIconChanged(self, QIcon) [signal]
`windowIconTextChanged`	windowIconTextChanged(self, str) [signal]
`windowTitleChanged`	windowTitleChanged(self, str) [signal]

actionEvent()¶

brush(self) → QBrush¶: Returns the brush used when drawing histogram bars.

See also

setBrush()

See also

pen()

changeEvent()¶

childEvent()¶

closeEvent()¶

connectNotify()¶

contextMenuEvent()¶

create()¶

customEvent()¶

destroy()¶

disconnectNotify()¶

dragEnterEvent()¶

dragLeaveEvent()¶

dragMoveEvent()¶

drawHistogram(self)¶: Updates and redraws the histogram.

dropEvent()¶

enterEvent()¶

event()¶

focusInEvent()¶

focusNextChild()¶

focusNextPrevChild()¶

focusOutEvent()¶

focusPreviousChild()¶

graduatedRanges(self) → object¶

Returns the graduated ranges associated with the histogram. If set, the ranges will be used to color the histogram bars and for showing vertical dividers at the histogram breaks.

Returns:	graduated range list

See also

setGraduatedRanges()

hideEvent()¶

initPainter()¶

inputMethodEvent()¶

isSignalConnected()¶

keyPressEvent()¶

keyReleaseEvent()¶

layer(self) → QgsVectorLayer¶: Returns the layer currently associated with the widget.

See also

setLayer()

See also

sourceFieldExp()

leaveEvent()¶

metric()¶

mouseDoubleClickEvent()¶

mouseMoveEvent()¶

mousePressEvent()¶

mouseReleaseEvent()¶

moveEvent()¶

nativeEvent()¶

paintEvent()¶

pen(self) → QPen¶: Returns the pen used when drawing histogram bars.

See also

setPen()

See also

brush()

receivers()¶

refresh(self)¶: Redraws the histogram. Calling this slot does not update the values for the histogram, use refreshValues() to do this.

refreshValues(self)¶: Refreshes the values for the histogram by fetching them from the layer.

resizeEvent()¶

sender()¶

senderSignalIndex()¶

setBrush(self, brush: Union[QBrush, QColor, Qt.GlobalColor, QGradient])¶

Sets the brush used for drawing histogram bars. If ranges have been set using setGraduatedRanges() then the pen and brush will have no effect.

Parameters:	brush – histogram brush

See also

brush()

See also

setPen()

setGraduatedRanges(self, ranges: object)¶

Sets the graduated ranges associated with the histogram. If set, the ranges will be used to color the histogram bars and for showing vertical dividers at the histogram breaks.

Parameters:	ranges – graduated range list

See also

graduatedRanges()

setLayer(self, layer: QgsVectorLayer)¶

Sets the vector layer associated with the histogram.

Parameters:	layer – source vector layer

See also

setSourceFieldExp()

setPen(self, pen: Union[QPen, QColor, Qt.GlobalColor, QGradient])¶

Sets the pen to use when drawing histogram bars. If set to Qt.NoPen then the pen will be automatically calculated. If ranges have been set using setGraduatedRanges() then the pen and brush will have no effect.

Parameters:	pen – histogram pen

See also

pen()

See also

setBrush()

setSourceFieldExp(self, fieldOrExp: str)¶

Sets the source field or expression to use for values in the histogram.

Parameters:	fieldOrExp – field name or expression string

See also

setLayer()

setXAxisTitle(self, title: str)¶

Sets the title for the histogram’s x-axis.

Parameters:	title – x-axis title, or empty string to remove title

See also

xAxisTitle()

See also

setYAxisTitle()

setYAxisTitle(self, title: str)¶

Sets the title for the histogram’s y-axis.

Parameters:	title – y-axis title, or empty string to remove title

See also

yAxisTitle()

See also

setXAxisTitle()

sharedPainter()¶

showEvent()¶

sourceFieldExp(self) → str¶: Returns the source field name or expression used to calculate values displayed in the histogram.

See also

setSourceFieldExp()

See also

layer()

tabletEvent()¶

timerEvent()¶

updateMicroFocus()¶

wheelEvent()¶

xAxisTitle(self) → str¶: Returns the title for the histogram’s x-axis.

See also

setXAxisTitle()

See also

yAxisTitle()

yAxisTitle(self) → str¶: Returns the title for the histogram’s y-axis.

See also

setYAxisTitle()

See also

xAxisTitle()