Class: QgsColorWheel¶
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class
qgis.gui.
QgsColorWheel
(parent: QWidget = None)¶ Bases:
QgsColorWidget
Constructs a new color wheel widget.
- Parameters
parent (QWidget = None) – parent QWidget for the widget
A color wheel widget. This widget consists of an outer ring which allows for hue selection, and an inner rotating triangle which allows for saturation and value selection.
Methods
Alters a color by modifiying the value of a specific color component
Returns the range of valid values for the color widget’s component
Returns the current value of the widget’s color component
Returns the hue for the widget.
- param event
- param event
- param event
- param event
- param event
- param color
- rtype
QSize
Generates a checkboard pattern pixmap for use as a background to transparent colors
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actionEvent
(self, QActionEvent)¶
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alterColor
(self, color: Union[QColor, Qt.GlobalColor, QGradient], component: QgsColorWidget.ColorComponent, newValue: int)¶ Alters a color by modifiying the value of a specific color component
- Parameters
color – color to alter
component – color component to alter
newValue – new value of color component. Values are automatically clipped to a valid range for the color component.
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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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componentRange
(self) → int¶ Returns the range of valid values for the color widget’s component
- Returns
maximum value allowed for color component, or -1 if widget has multiple components
componentRange(self, component: QgsColorWidget.ColorComponent) -> int Returns the range of valid values a color component
- Returns
maximum value allowed for color component
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componentValue
(self) → int¶ Returns the current value of the widget’s color component
- Returns
value of color component, or -1 if widget has multiple components or an invalid color set
See also
setComponentValue()
See also
component()
componentValue(self, component: QgsColorWidget.ColorComponent) -> int Returns the value of a component of the widget’s current color. This method correctly handles hue values when the color has an ambiguous hue (e.g., black or white shades)
- Parameters
component – color component to return
- Returns
value of color component, or -1 if widget has an invalid color set
See also
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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, e: QDragEnterEvent)¶
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dragLeaveEvent
(self, QDragLeaveEvent)¶
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dragMoveEvent
(self, QDragMoveEvent)¶
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dropEvent
(self, e: 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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hue
(self) → int¶ Returns the hue for the widget. This may differ from the hue for the QColor returned by color(), as QColor returns a hue of -1 if the color’s hue is ambiguous (e.g., if the saturation is zero).
- Returns
explicitly set hue for widget
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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, QKeyEvent)¶
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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, event: QMouseEvent)¶ - Parameters
event (QMouseEvent) –
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mousePressEvent
(self, event: QMouseEvent)¶ - Parameters
event (QMouseEvent) –
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mouseReleaseEvent
(self, event: QMouseEvent)¶ - Parameters
event (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, event: QPaintEvent)¶ - Parameters
event (QPaintEvent) –
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receivers
(self, PYQT_SIGNAL) → int¶
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resizeEvent
(self, event: QResizeEvent)¶ - Parameters
event (QResizeEvent) –
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sender
(self) → QObject¶
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senderSignalIndex
(self) → int¶
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setColor
(self, color: Union[QColor, Qt.GlobalColor, QGradient], emitSignals: bool = False)¶ - Parameters
color (Union[QColor) –
emitSignals (bool = False) –
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showEvent
(self, QShowEvent)¶
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sizeHint
(self) → QSize¶ - Return type
QSize
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tabletEvent
(self, QTabletEvent)¶
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timerEvent
(self, QTimerEvent)¶
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transparentBackground
() → QPixmap¶ Generates a checkboard pattern pixmap for use as a background to transparent colors
- Returns
checkerboard pixmap
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updateMicroFocus
(self)¶
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wheelEvent
(self, QWheelEvent)¶