QDragMoveEvent ¶

概要 ¶

详细描述 ¶

A widget will receive drag move events repeatedly while the drag is within its boundaries, if it accepts drop events and enter events . The widget should examine the event to see what kind of data it provides, and call the accept() function to accept the drop if appropriate.

The rectangle supplied by the answerRect() function can be used to restrict drops to certain parts of the widget. For example, we can check whether the rectangle intersects with the geometry of a certain child widget and only call acceptProposedAction() if that is the case.

Note that this class inherits most of its functionality from QDropEvent .

另请参阅

QDragEnterEvent QDragLeaveEvent QDropEvent

class QDragMoveEvent ( pos , actions , data , buttons , modifiers [ , type=DragMove ] ) ¶

param type

Type

param modifiers

KeyboardModifiers

param actions

DropActions

param buttons

MouseButtons

param pos

QPoint

param data

QMimeData

创建 QDragMoveEvent of the required type indicating that the mouse is at position pos given within a widget.

The mouse and keyboard states are specified by buttons and modifiers ，和 actions describe the types of drag and drop operation that are possible. The drag data is passed as MIME-encoded information in data .

警告

Do not attempt to create a QDragMoveEvent yourself. These objects rely on Qt’s internal state.

PySide2.QtGui.QDragMoveEvent. accept ( ) ¶

这是重载函数。

调用 accept() .

PySide2.QtGui.QDragMoveEvent. accept ( r ) ¶

参数

r – QRect

如同 accept() , but also notifies that future moves will also be acceptable if they remain within the rectangle given on the widget. This can improve performance, but may also be ignored by the underlying system.

If the rectangle is empty, drag move events will be sent continuously. This is useful if the source is scrolling in a timer event.

PySide2.QtGui.QDragMoveEvent. answerRect ( ) ¶

返回类型

QRect

Returns the rectangle in the widget where the drop will occur if accepted. You can use this information to restrict drops to certain places on the widget.

PySide2.QtGui.QDragMoveEvent. ignore ( ) ¶

这是重载函数。

调用 ignore() .

PySide2.QtGui.QDragMoveEvent. ignore ( r ) ¶

参数

r – QRect

The opposite of the accept(const QRect &) function. Moves within the rectangle are not acceptable, and will be ignored.