Class: QgsRasterHistogramWidget¶
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class
qgis.gui.
QgsRasterHistogramWidget
(layer: QgsRasterLayer, parent: QWidget = None)¶ Bases:
QgsMapLayerConfigWidget
Constructor for
QgsRasterHistogramWidget
, for the specified rasterlayer
.Histogram widget
- Parameters
layer (QgsRasterLayer) –
parent –
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actionEvent
(self, QActionEvent)¶
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apply
(self)¶
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changeEvent
(self, QEvent)¶
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childEvent
(self, QChildEvent)¶
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closeEvent
(self, QCloseEvent)¶
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computeHistogram
(self, forceComputeFlag: bool) → bool¶ Compute the histogram on demand.
- Parameters
forceComputeFlag (bool) –
- Return type
bool
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connectNotify
(self, QMetaMethod)¶
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contextMenuEvent
(self, QContextMenuEvent)¶
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create
(self, window: sip.voidptr = 0, initializeWindow: bool = True, destroyOldWindow: bool = True)¶
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customEvent
(self, QEvent)¶
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destroy
(self, destroyWindow: bool = True, destroySubWindows: bool = True)¶
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disconnectNotify
(self, QMetaMethod)¶
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dragEnterEvent
(self, QDragEnterEvent)¶
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dragLeaveEvent
(self, QDragLeaveEvent)¶
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dragMoveEvent
(self, QDragMoveEvent)¶
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dropEvent
(self, QDropEvent)¶
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enterEvent
(self, QEvent)¶
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event
(self, QEvent) → bool¶
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focusInEvent
(self, QFocusEvent)¶
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focusNextChild
(self) → bool¶
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focusNextPrevChild
(self, bool) → bool¶
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focusOutEvent
(self, QFocusEvent)¶
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focusPreviousChild
(self) → bool¶
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hideEvent
(self, QHideEvent)¶
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histoAction
(self, actionName: str, actionFlag: bool = True)¶ Apply a histoActionTriggered() event.
- Parameters
actionName (str) –
actionFlag (bool = True) –
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histoSaveAsImage
(self, filename: str, width: int = 600, height: int = 600, quality: int = - 1) → bool¶ Save the histogram as an image to disk
- Parameters
filename (str) –
width (int = 600) –
height (int = 600) –
quality (int = -1) –
- Return type
bool
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initPainter
(self, QPainter)¶
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inputMethodEvent
(self, QInputMethodEvent)¶
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isSignalConnected
(self, QMetaMethod) → bool¶
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keyPressEvent
(self, event: QKeyEvent)¶ Overridden key press event to handle the esc event on the widget.
- Parameters
event – The key event
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keyReleaseEvent
(self, QKeyEvent)¶
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leaveEvent
(self, QEvent)¶
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metric
(self, QPaintDevice.PaintDeviceMetric) → int¶
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mouseDoubleClickEvent
(self, QMouseEvent)¶
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mouseMoveEvent
(self, QMouseEvent)¶
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mousePressEvent
(self, QMouseEvent)¶
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mouseReleaseEvent
(self, QMouseEvent)¶
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moveEvent
(self, QMoveEvent)¶
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nativeEvent
(self, Union[QByteArray, bytes, bytearray], sip.voidptr) → Tuple[bool, int]¶
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paintEvent
(self, QPaintEvent)¶
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receivers
(self, PYQT_SIGNAL) → int¶
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refreshHistogram
(self)¶ slot executed when user wishes to refresh raster histogramwidget
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resizeEvent
(self, QResizeEvent)¶
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sender
(self) → QObject¶
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senderSignalIndex
(self) → int¶
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setActive
(self, activeFlag: bool)¶ Activate the histogram widget
- Parameters
activeFlag (bool) –
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setRendererWidget
(self, name: str, rendererWidget: QgsRasterRendererWidget = None)¶ Sets the renderer widget (or just its name if there is no widget)
- Parameters
name (str) –
rendererWidget (
QgsRasterRendererWidget
= None) –
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setSelectedBand
(self, index: int)¶ Apply a histoActionTriggered() event.
- Parameters
index (int) –
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showEvent
(self, QShowEvent)¶
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tabletEvent
(self, QTabletEvent)¶
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timerEvent
(self, QTimerEvent)¶
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updateMicroFocus
(self)¶
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wheelEvent
(self, QWheelEvent)¶