QColorDialog ¶

概要 ¶

详细描述 ¶

The color dialog’s function is to allow users to choose colors. For example, you might use this in a drawing program to allow the user to set the brush color.

The static functions provide modal color dialogs.

静态 getColor() function shows the dialog, and allows the user to specify a color. This function can also be used to let users choose a color with a level of transparency: pass the ShowAlphaChannel option as an additional argument.

The user can store customCount() different custom colors. The custom colors are shared by all color dialogs, and remembered during the execution of the program. Use setCustomColor() to set the custom colors, and use customColor() to get them.

When pressing the “Pick Screen Color” button, the cursor changes to a haircross and the colors on the screen are scanned. The user can pick up one by clicking the mouse or the Enter button. Pressing Escape restores the last color selected before entering this mode.

标准对话框 example shows how to use QColorDialog as well as other built-in Qt dialogs.

另请参阅

QColor QFileDialog QFontDialog 标准对话框范例

class QColorDialog ( [ parent=None ] ) ¶

QColorDialog(initial[, parent=None])

param parent

QWidget

param initial

QColor

Constructs a color dialog with the given parent .

Constructs a color dialog with the given parent and specified initial 颜色。

PySide2.QtWidgets.QColorDialog. ColorDialogOption ¶

This enum specifies various options that affect the look and feel of a color dialog.

常量	描述
QColorDialog.ShowAlphaChannel	Allow the user to select the alpha component of a color.
QColorDialog.NoButtons	Don’t display OK and Cancel buttons. (Useful for “live dialogs”.)
QColorDialog.DontUseNativeDialog	Use Qt’s standard color dialog instead of the operating system native color dialog.

另请参阅

options setOption() testOption() windowModality()

PySide2.QtWidgets.QColorDialog. colorSelected ( color ) ¶

参数

color – QColor

PySide2.QtWidgets.QColorDialog. currentColor ( ) ¶

返回类型

QColor

另请参阅

setCurrentColor()

PySide2.QtWidgets.QColorDialog. currentColorChanged ( color ) ¶

参数

color – QColor

static PySide2.QtWidgets.QColorDialog. customColor ( index ) ¶

参数

index – int

返回类型

QColor

Returns the custom color at the given index 作为 QColor 值。

另请参阅

setCustomColor()

static PySide2.QtWidgets.QColorDialog. customCount ( ) ¶

返回类型

int

Returns the number of custom colors supported by QColorDialog . All color dialogs share the same custom colors.

static PySide2.QtWidgets.QColorDialog. getColor ( [ initial=Qt.white [ , parent=None [ , title="" [ , options=QColorDialog.ColorDialogOptions() ] ] ] ] ) ¶

参数

• initial – QColor

• parent – QWidget

• title – unicode

• options – ColorDialogOptions

返回类型

QColor

Pops up a modal color dialog with the given window title (or “Select Color” if none is specified), lets the user choose a color, and returns that color. The color is initially set to initial . The dialog is a child of parent . It returns an invalid (see isValid() ) color if the user cancels the dialog.

options argument allows you to customize the dialog.

PySide2.QtWidgets.QColorDialog. open ( receiver , member ) ¶

参数

• receiver – QObject

• member – str

打开对话框并连接其 colorSelected() signal to the slot specified by receiver and member .

信号将断开槽连接，当对话框被关闭时。

PySide2.QtWidgets.QColorDialog. options ( ) ¶

返回类型

ColorDialogOptions

另请参阅

setOptions()

PySide2.QtWidgets.QColorDialog. selectedColor ( ) ¶

返回类型

QColor

Returns the color that the user selected by clicking the OK or equivalent button.

注意

This color is not always the same as the color held by the currentColor property since the user can choose different colors before finally selecting the one to use.

PySide2.QtWidgets.QColorDialog. setCurrentColor ( color ) ¶

参数

color – QColor

另请参阅

currentColor()

static PySide2.QtWidgets.QColorDialog. setCustomColor ( index , color ) ¶

参数

• index – int

• color – QColor

Sets the custom color at index 到 QColor color 值。

注意

This function does not apply to the Native Color Dialog on the macOS platform. If you still require this function, use the DontUseNativeDialog 选项。

另请参阅

customColor()

PySide2.QtWidgets.QColorDialog. setOption ( option [ , on=true ] ) ¶

参数

• option – ColorDialogOption

• on – bool

设置给定 option to be enabled if on is true; otherwise, clears the given option .

另请参阅

options testOption()

PySide2.QtWidgets.QColorDialog. setOptions ( options ) ¶

参数

options – ColorDialogOptions

另请参阅

options()

static PySide2.QtWidgets.QColorDialog. setStandardColor ( index , color ) ¶

参数

• index – int

• color – QColor

Sets the standard color at index 到 QColor color 值。

注意

This function does not apply to the Native Color Dialog on the macOS platform. If you still require this function, use the DontUseNativeDialog 选项。

另请参阅

standardColor()

static PySide2.QtWidgets.QColorDialog. standardColor ( index ) ¶

参数

index – int

返回类型

QColor

Returns the standard color at the given index 作为 QColor 值。

另请参阅

setStandardColor()

PySide2.QtWidgets.QColorDialog. testOption ( option ) ¶

参数

option – ColorDialogOption

返回类型

bool

返回 true 若给定 option 被启用；否则，返回 false。

另请参阅

options setOption()