QAbstractItemView ¶

概要 ¶

详细描述 ¶

QAbstractItemView class is the base class for every standard view that uses a QAbstractItemModel . QAbstractItemView is an abstract class and cannot itself be instantiated. It provides a standard interface for interoperating with models through the signals and slots mechanism, enabling subclasses to be kept up-to-date with changes to their models. This class provides standard support for keyboard and mouse navigation, viewport scrolling, item editing, and selections. The keyboard navigation implements this functionality:

键	功能
方向键	改变当前项并选择它。
Ctrl + 方向键	改变当前项但不选择它。
Shift + 方向键	更改当前项并选择它。先前选中项不会被取消选择。
Ctr+Space	切换当前项的选定。
Tab/Backtab	将当前项更改为下一/上一项。
Home/End	选择模型中的第一/最后项。
Page up/Page down	按视图中的可见行数向上/向下卷动展示行。
Ctrl+A	选择模型中的所有项。

注意，上表假定 selection mode 允许操作。例如，无法选择项，若选定模式为 NoSelection .

QAbstractItemView class is one of the 模型/视图类 and is part of Qt’s 模型/视图框架 .

The view classes that inherit QAbstractItemView only need to implement their own view-specific functionality, such as drawing items, returning the geometry of items, finding items, etc.

QAbstractItemView provides common slots such as edit() and setCurrentIndex() . Many protected slots are also provided, including dataChanged() , rowsInserted() , rowsAboutToBeRemoved() , selectionChanged() ，和 currentChanged() .

根项的返回通过 rootIndex() , and the current item by currentIndex() . To make sure that an item is visible use scrollTo() .

Some of QAbstractItemView ‘s functions are concerned with scrolling, for example setHorizontalScrollMode() and setVerticalScrollMode() . To set the range of the scroll bars, you can, for example, reimplement the view’s resizeEvent() 函数：

def resizeEvent(self, event):
    horizontalScrollBar().setRange(0, realWidth - width())
    ...
											

注意，范围不更新，直到小部件被展示为止。

几个其它函数涉及选定控制；例如 setSelectionMode() ，和 setSelectionBehavior() . This class provides a default selection model to work with ( selectionModel() ), but this can be replaced by using setSelectionModel() with an instance of QItemSelectionModel .

要完全控制项的显示和编辑，可以指定委托采用 setItemDelegate() .

QAbstractItemView provides a lot of protected functions. Some are concerned with editing, for example, edit() ，和 commitData() , whilst others are keyboard and mouse event handlers.

注意

If you inherit QAbstractItemView and intend to update the contents of the viewport, you should use viewport-> update() 而不是 update() 因为所有描绘操作都发生在视口中。

另请参阅

视图类 模型/视图编程 QAbstractItemModel 图表范例

class QAbstractItemView ( [ parent=None ] ) ¶

param parent

QWidget

Constructs an abstract item view with the given parent .

PySide2.QtWidgets.QAbstractItemView. SelectionMode ¶

此枚举指示视图如何响应用户选择：

常量	描述
QAbstractItemView.SingleSelection	当用户选择项时，任何已选中项变为未选中。用户通过按下 Ctrl 键取消对选中项的选择是可能的，当点击选中项时。
QAbstractItemView.ContiguousSelection	When the user selects an item in the usual way, the selection is cleared and the new item selected. However, if the user presses the Shift key while clicking on an item, all items between the current item and the clicked item are selected or unselected, depending on the state of the clicked item.
QAbstractItemView.ExtendedSelection	When the user selects an item in the usual way, the selection is cleared and the new item selected. However, if the user presses the Ctrl key when clicking on an item, the clicked item gets toggled and all other items are left untouched. If the user presses the Shift key while clicking on an item, all items between the current item and the clicked item are selected or unselected, depending on the state of the clicked item. Multiple items can be selected by dragging the mouse over them.
QAbstractItemView.MultiSelection	When the user selects an item in the usual way, the selection status of that item is toggled and the other items are left alone. Multiple items can be toggled by dragging the mouse over them.
QAbstractItemView.NoSelection	无法选择项。

The most commonly used modes are and .

PySide2.QtWidgets.QAbstractItemView. SelectionBehavior ¶

常量	描述
QAbstractItemView.SelectItems	选择单个项。
QAbstractItemView.SelectRows	仅选择行。
QAbstractItemView.SelectColumns	仅选择列。

PySide2.QtWidgets.QAbstractItemView. ScrollHint ¶

常量	描述
QAbstractItemView.EnsureVisible	卷动以确保项可见。
QAbstractItemView.PositionAtTop	卷动以将项放置在视口顶部。
QAbstractItemView.PositionAtBottom	卷动以定位到视口底部项。
QAbstractItemView.PositionAtCenter	卷动以定位到视口中心项。

PySide2.QtWidgets.QAbstractItemView. EditTrigger ¶

此枚举描述将初始项编辑的动作。

常量	描述
QAbstractItemView.NoEditTriggers	没有编辑可能。
QAbstractItemView.CurrentChanged	开始编辑每当当前项改变时。
QAbstractItemView.DoubleClicked	开始编辑当双击项时。
QAbstractItemView.SelectedClicked	开始编辑当点击已选中项时。
QAbstractItemView.EditKeyPressed	开始编辑当在项上按下平台编辑键时。
QAbstractItemView.AnyKeyPressed	开始编辑当在项上按下任意键时。
QAbstractItemView.AllEditTriggers	开始编辑对于上述所有动作。

PySide2.QtWidgets.QAbstractItemView. ScrollMode ¶

Describes how the scrollbar should behave. When setting the scroll mode to the single step size will adjust automatically unless it was set explicitly using setSingleStep() 。可以通过将单步大小设为-1 以还原自动调节。

常量	描述
QAbstractItemView.ScrollPerItem	视图每次卷动内容一项。
QAbstractItemView.ScrollPerPixel	视图每次卷动内容一像素。

PySide2.QtWidgets.QAbstractItemView. DragDropMode ¶

描述视图可以行动的各种拖放事件。默认情况下，视图不支持拖曳或掉落 ( NoDragDrop ).

常量	描述
QAbstractItemView.NoDragDrop	不支持拖曳或掉落。
QAbstractItemView.DragOnly	视图支持拖曳自己的项
QAbstractItemView.DropOnly	视图接受掉落
QAbstractItemView.DragDrop	视图支持拖拽和掉落两者
QAbstractItemView.InternalMove	视图接受移动 ( 非拷贝 ) 操作仅来自自身。

注意，使用模型需要提供对拖放操作的支持。

另请参阅

setDragDropMode() 将拖放用于项视图

PySide2.QtWidgets.QAbstractItemView. CursorAction ¶

此枚举描述在项之间导航的不同方式，

常量	描述
QAbstractItemView.MoveUp	移至当前项的上方项。
QAbstractItemView.MoveDown	移至当前项的下方项。
QAbstractItemView.MoveLeft	移动到当前项的左侧项。
QAbstractItemView.MoveRight	移动到当前项的右侧项。
QAbstractItemView.MoveHome	移至左上角项。
QAbstractItemView.MoveEnd	移动到右下角项。
QAbstractItemView.MovePageUp	移至当前项上一页。
QAbstractItemView.MovePageDown	移至当前项下一页。
QAbstractItemView.MoveNext	移至当前项之后项。
QAbstractItemView.MovePrevious	移至当前项之前项。

另请参阅

moveCursor()

PySide2.QtWidgets.QAbstractItemView. State ¶

描述视图可以处于的不同状态。通常，这只对重实现自己的视图感兴趣。

常量	描述
QAbstractItemView.NoState	这是默认状态。
QAbstractItemView.DraggingState	用户正在拖曳项。
QAbstractItemView.DragSelectingState	用户正在选择项。
QAbstractItemView.EditingState	用户正在 Widget 编辑器中编辑项。
QAbstractItemView.ExpandingState	用户正在打开项分支。
QAbstractItemView.CollapsingState	用户正在关闭项分支。
QAbstractItemView.AnimatingState	项视图正在履行动画。

PySide2.QtWidgets.QAbstractItemView. DropIndicatorPosition ¶

此枚举指示掉落指示器相对当前鼠标位置的索引位置：

常量	描述
QAbstractItemView.OnItem	项将掉落在索引处。
QAbstractItemView.AboveItem	项将掉落在索引上方。
QAbstractItemView.BelowItem	项将掉落在索引下方。
QAbstractItemView.OnViewport	项将掉落在没有项的视口区域。各视图处理视口掉落项的方式，从属正使用的底层模型行为。

PySide2.QtWidgets.QAbstractItemView. activated ( index ) ¶

参数

index – QModelIndex

PySide2.QtWidgets.QAbstractItemView. alternatingRowColors ( ) ¶

返回类型

bool

另请参阅

setAlternatingRowColors()

PySide2.QtWidgets.QAbstractItemView. autoScrollMargin ( ) ¶

返回类型

int

另请参阅

setAutoScrollMargin()

PySide2.QtWidgets.QAbstractItemView. clearSelection ( ) ¶

Deselects all selected items. The current index will not be changed.

另请参阅

setSelection() selectAll()

PySide2.QtWidgets.QAbstractItemView. clicked ( index ) ¶

参数

index – QModelIndex

PySide2.QtWidgets.QAbstractItemView. closeEditor ( editor , hint ) ¶

参数

• editor – QWidget

• hint – EndEditHint

关闭给定 editor , and releases it. The hint is used to specify how the view should respond to the end of the editing operation. For example, the hint may indicate that the next item in the view should be opened for editing.

另请参阅

edit() commitData()

PySide2.QtWidgets.QAbstractItemView. closePersistentEditor ( index ) ¶

参数

index – QModelIndex

Closes the persistent editor for the item at the given index .

另请参阅

openPersistentEditor() isPersistentEditorOpen()

PySide2.QtWidgets.QAbstractItemView. commitData ( editor ) ¶

参数

editor – QWidget

提交数据在 editor 到模型。

另请参阅

closeEditor()

PySide2.QtWidgets.QAbstractItemView. currentChanged ( current , 上一 ) ¶

参数

• current – QModelIndex

• 上一 – QModelIndex

This slot is called when a new item becomes the current item. The previous current item is specified by the 上一 index, and the new item by the current index.

If you want to know about changes to items see the dataChanged() 信号。

PySide2.QtWidgets.QAbstractItemView. currentIndex ( ) ¶

返回类型

QModelIndex

Returns the model index of the current item.

另请参阅

setCurrentIndex()

PySide2.QtWidgets.QAbstractItemView. dataChanged ( topLeft , bottomRight [ , roles=list() ] ) ¶

参数

• topLeft – QModelIndex

• bottomRight – QModelIndex

• roles –

This slot is called when items with the given roles are changed in the model. The changed items are those from topLeft to bottomRight inclusive. If just one item is changed topLeft == bottomRight .

roles which have been changed can either be an empty container (meaning everything has changed), or a non-empty container with the subset of roles which have changed.

注意

: ToolTipRole is not honored by in the views provided by Qt.

PySide2.QtWidgets.QAbstractItemView. defaultDropAction ( ) ¶

返回类型

DropAction

另请参阅

setDefaultDropAction()

PySide2.QtWidgets.QAbstractItemView. dirtyRegionOffset ( ) ¶

返回类型

QPoint

Returns the offset of the dirty regions in the view.

若使用 scrollDirtyRegion() and implement a paintEvent() in a subclass of QAbstractItemView , you should translate the area given by the paint event with the offset returned from this function.

另请参阅

scrollDirtyRegion() setDirtyRegion()

PySide2.QtWidgets.QAbstractItemView. doAutoScroll ( ) ¶

PySide2.QtWidgets.QAbstractItemView. doItemsLayout ( ) ¶

This function is intended to lay out the items in the view. The default implementation just calls updateGeometries() and updates the viewport.

PySide2.QtWidgets.QAbstractItemView. doubleClicked ( index ) ¶

参数

index – QModelIndex

PySide2.QtWidgets.QAbstractItemView. dragDropMode ( ) ¶

返回类型

DragDropMode

另请参阅

setDragDropMode()

PySide2.QtWidgets.QAbstractItemView. dragDropOverwriteMode ( ) ¶

返回类型

bool

另请参阅

setDragDropOverwriteMode()

PySide2.QtWidgets.QAbstractItemView. dragEnabled ( ) ¶

返回类型

bool

另请参阅

setDragEnabled()

PySide2.QtWidgets.QAbstractItemView. dropIndicatorPosition ( ) ¶

返回类型

DropIndicatorPosition

Returns the position of the drop indicator in relation to the closest item.

PySide2.QtWidgets.QAbstractItemView. edit ( index ) ¶

参数

index – QModelIndex

Starts editing the item corresponding to the given index 若它可编辑。

Note that this function does not change the current index. Since the current index defines the next and previous items to edit, users may find that keyboard navigation does not work as expected. To provide consistent navigation behavior, call setCurrentIndex() before this function with the same model index.

另请参阅

flags()

PySide2.QtWidgets.QAbstractItemView. edit ( index , trigger , event ) ¶

参数

• index – QModelIndex

• trigger – EditTrigger

• event – QEvent

返回类型

bool

Starts editing the item at index , creating an editor if necessary, and returns true if the view’s State 现为 EditingState ；否则返回 false .

The action that caused the editing process is described by trigger , and the associated event is specified by event .

Editing can be forced by specifying the trigger to be AllEditTriggers .

另请参阅

closeEditor()

PySide2.QtWidgets.QAbstractItemView. editTriggers ( ) ¶

返回类型

EditTriggers

另请参阅

setEditTriggers()

PySide2.QtWidgets.QAbstractItemView. editorDestroyed ( editor ) ¶

参数

editor – QObject

This function is called when the given editor has been destroyed.

另请参阅

closeEditor()

PySide2.QtWidgets.QAbstractItemView. entered ( index ) ¶

参数

index – QModelIndex

PySide2.QtWidgets.QAbstractItemView. executeDelayedItemsLayout ( ) ¶

Executes the scheduled layouts without waiting for the event processing to begin.

另请参阅

scheduleDelayedItemsLayout()

PySide2.QtWidgets.QAbstractItemView. hasAutoScroll ( ) ¶

返回类型

bool

PySide2.QtWidgets.QAbstractItemView. horizontalOffset ( ) ¶

返回类型

int

Returns the horizontal offset of the view.

在基类中，这是纯虚函数。

另请参阅

verticalOffset()

PySide2.QtWidgets.QAbstractItemView. horizontalScrollMode ( ) ¶

返回类型

ScrollMode

另请参阅

setHorizontalScrollMode()

PySide2.QtWidgets.QAbstractItemView. horizontalScrollbarAction ( action ) ¶

参数

action – int

PySide2.QtWidgets.QAbstractItemView. horizontalScrollbarValueChanged ( value ) ¶

参数

value – int

PySide2.QtWidgets.QAbstractItemView. horizontalStepsPerItem ( ) ¶

返回类型

int

注意

此函数被弃用。

Returns the horizontal scroll bar’s steps per item.

另请参阅

setHorizontalStepsPerItem() verticalStepsPerItem()

PySide2.QtWidgets.QAbstractItemView. iconSize ( ) ¶

返回类型

QSize

另请参阅

setIconSize()

PySide2.QtWidgets.QAbstractItemView. iconSizeChanged ( size ) ¶

参数

size – QSize

PySide2.QtWidgets.QAbstractItemView. indexAt ( point ) ¶

参数

point – QPoint

返回类型

QModelIndex

Returns the model index of the item at the viewport coordinates point .

在基类中，这是纯虚函数。

另请参阅

visualRect()

PySide2.QtWidgets.QAbstractItemView. indexWidget ( index ) ¶

参数

index – QModelIndex

返回类型

QWidget

返回用于项的 Widget 在给定 index .

另请参阅

setIndexWidget()

PySide2.QtWidgets.QAbstractItemView. isIndexHidden ( index ) ¶

参数

index – QModelIndex

返回类型

bool

返回 true 若项引用通过给定 index is hidden in the view, otherwise returns false .

Hiding is a view specific feature. For example in TableView a column can be marked as hidden or a row in the TreeView.

在基类中，这是纯虚函数。

PySide2.QtWidgets.QAbstractItemView. isPersistentEditorOpen ( index ) ¶

参数

index – QModelIndex

返回类型

bool

返回项是否打开持久编辑器在索引 index .

另请参阅

openPersistentEditor() closePersistentEditor()

PySide2.QtWidgets.QAbstractItemView. itemDelegate ( ) ¶

返回类型

QAbstractItemDelegate

Returns the item delegate used by this view and model. This is either one set with setItemDelegate() , or the default one.

另请参阅

setItemDelegate()

PySide2.QtWidgets.QAbstractItemView. itemDelegate ( index ) ¶

参数

index – QModelIndex

返回类型

QAbstractItemDelegate

Returns the item delegate used by this view and model for the given index .

PySide2.QtWidgets.QAbstractItemView. itemDelegateForColumn ( column ) ¶

参数

column – int

返回类型

QAbstractItemDelegate

Returns the item delegate used by this view and model for the given column . You can call itemDelegate() to get a pointer to the current delegate for a given index.

另请参阅

setItemDelegateForColumn() itemDelegateForRow() itemDelegate()

PySide2.QtWidgets.QAbstractItemView. itemDelegateForRow ( row ) ¶

参数

row – int

返回类型

QAbstractItemDelegate

Returns the item delegate used by this view and model for the given row ，或 None if no delegate has been assigned. You can call itemDelegate() to get a pointer to the current delegate for a given index.

另请参阅

setItemDelegateForRow() itemDelegateForColumn() setItemDelegate()

PySide2.QtWidgets.QAbstractItemView. keyboardSearch ( search ) ¶

参数

search – unicode

Moves to and selects the item best matching the string search . If no item is found nothing happens.

In the default implementation, the search is reset if search is empty, or the time interval since the last search has exceeded keyboardInputInterval() .

PySide2.QtWidgets.QAbstractItemView. model ( ) ¶

返回类型

QAbstractItemModel

Returns the model that this view is presenting.

另请参阅

setModel()

PySide2.QtWidgets.QAbstractItemView. moveCursor ( cursorAction , modifiers ) ¶

参数

• cursorAction – CursorAction

• modifiers – KeyboardModifiers

返回类型

QModelIndex

返回 QModelIndex 对象指向下一视图对象，基于给定 cursorAction and keyboard modifiers specified by modifiers .

在基类中，这是纯虚函数。

PySide2.QtWidgets.QAbstractItemView. openPersistentEditor ( index ) ¶

参数

index – QModelIndex

Opens a persistent editor on the item at the given index . If no editor exists, the delegate will create a new editor.

另请参阅

closePersistentEditor() isPersistentEditorOpen()

PySide2.QtWidgets.QAbstractItemView. pressed ( index ) ¶

参数

index – QModelIndex

PySide2.QtWidgets.QAbstractItemView. reset ( ) ¶

重置视图的内部状态。

警告

This function will reset open editors, scroll bar positions, selections, etc. Existing changes will not be committed. If you would like to save your changes when resetting the view, you can reimplement this function, commit your changes, and then call the superclass’ implementation.

PySide2.QtWidgets.QAbstractItemView. resetHorizontalScrollMode ( ) ¶

PySide2.QtWidgets.QAbstractItemView. resetVerticalScrollMode ( ) ¶

PySide2.QtWidgets.QAbstractItemView. rootIndex ( ) ¶

返回类型

QModelIndex

Returns the model index of the model’s root item. The root item is the parent item to the view’s toplevel items. The root can be invalid.

另请参阅

setRootIndex()

PySide2.QtWidgets.QAbstractItemView. rowsAboutToBeRemoved ( parent , start , end ) ¶

参数

• parent – QModelIndex

• start – int

• end – int

This slot is called when rows are about to be removed. The deleted rows are those under the given parent from start to end 包含在内。

另请参阅

rowsInserted()

PySide2.QtWidgets.QAbstractItemView. rowsInserted ( parent , start , end ) ¶

参数

• parent – QModelIndex

• start – int

• end – int

This slot is called when rows are inserted. The new rows are those under the given parent from start to end inclusive. The base class implementation calls fetchMore() on the model to check for more data.

另请参阅

rowsAboutToBeRemoved()

PySide2.QtWidgets.QAbstractItemView. scheduleDelayedItemsLayout ( ) ¶

Schedules a layout of the items in the view to be executed when the event processing starts.

Even if is called multiple times before events are processed, the view will only do the layout once.

另请参阅

executeDelayedItemsLayout()

PySide2.QtWidgets.QAbstractItemView. scrollDirtyRegion ( dx , dy ) ¶

参数

• dx – int

• dy – int

Prepares the view for scrolling by ( dx ,``dy`` ) pixels by moving the dirty regions in the opposite direction. You only need to call this function if you are implementing a scrolling viewport in your view subclass.

若实现 scrollContentsBy() in a subclass of QAbstractItemView , call this function before you call scroll() on the viewport. Alternatively, just call update() .

另请参阅

scrollContentsBy() dirtyRegionOffset() setDirtyRegion()

PySide2.QtWidgets.QAbstractItemView. scrollTo ( index [ , hint=EnsureVisible ] ) ¶

参数

• index – QModelIndex

• hint – ScrollHint

Scrolls the view if necessary to ensure that the item at index is visible. The view will try to position the item according to the given hint .

在基类中，这是纯虚函数。

PySide2.QtWidgets.QAbstractItemView. scrollToBottom ( ) ¶

卷动视图到底部。

另请参阅

scrollTo() scrollToTop()

PySide2.QtWidgets.QAbstractItemView. scrollToTop ( ) ¶

卷动视图到顶部。

另请参阅

scrollTo() scrollToBottom()

PySide2.QtWidgets.QAbstractItemView. selectAll ( ) ¶

Selects all items in the view. This function will use the selection behavior set on the view when selecting.

另请参阅

setSelection() selectedIndexes() clearSelection()

PySide2.QtWidgets.QAbstractItemView. selectedIndexes ( ) ¶

返回类型

QModelIndexList

This convenience function returns a list of all selected and non-hidden item indexes in the view. The list contains no duplicates, and is not sorted.

另请参阅

selectedIndexes()

PySide2.QtWidgets.QAbstractItemView. selectionBehavior ( ) ¶

返回类型

SelectionBehavior

另请参阅

setSelectionBehavior()

PySide2.QtWidgets.QAbstractItemView. selectionChanged ( selected , deselected ) ¶

参数

• selected – QItemSelection

• deselected – QItemSelection

This slot is called when the selection is changed. The previous selection (which may be empty), is specified by deselected , and the new selection by selected .

另请参阅

setSelection()

PySide2.QtWidgets.QAbstractItemView. selectionCommand ( index [ , event=None ] ) ¶

参数

• index – QModelIndex

• event – QEvent

返回类型

SelectionFlags

Returns the SelectionFlags to be used when updating a selection with to include the index specified. The event is a user input event, such as a mouse or keyboard event.

Reimplement this function to define your own selection behavior.

另请参阅

setSelection()

PySide2.QtWidgets.QAbstractItemView. selectionMode ( ) ¶

返回类型

SelectionMode

另请参阅

setSelectionMode()

PySide2.QtWidgets.QAbstractItemView. selectionModel ( ) ¶

返回类型

QItemSelectionModel

返回当前选定模型。

另请参阅

setSelectionModel() selectedIndexes()

PySide2.QtWidgets.QAbstractItemView. setAlternatingRowColors ( enable ) ¶

参数

enable – bool

另请参阅

alternatingRowColors()

PySide2.QtWidgets.QAbstractItemView. setAutoScroll ( enable ) ¶

参数

enable – bool

另请参阅

hasAutoScroll()

PySide2.QtWidgets.QAbstractItemView. setAutoScrollMargin ( margin ) ¶

参数

margin – int

另请参阅

autoScrollMargin()

PySide2.QtWidgets.QAbstractItemView. setCurrentIndex ( index ) ¶

参数

index – QModelIndex

把当前项设为项在 index .

除非当前选定方式为 NoSelection ，项也会被选中。注意：此函数还会更新用户履行任何新选定的起始位置。

要把项设为当前项而不选择它，调用

selectionModel()->setCurrentIndex(index, QItemSelectionModel::NoUpdate);

另请参阅

currentIndex() currentChanged() selectionMode

PySide2.QtWidgets.QAbstractItemView. setDefaultDropAction ( dropAction ) ¶

参数

dropAction – DropAction

另请参阅

defaultDropAction()

PySide2.QtWidgets.QAbstractItemView. setDirtyRegion ( region ) ¶

参数

region – QRegion

Marks the given region as dirty and schedules it to be updated. You only need to call this function if you are implementing your own view subclass.

另请参阅

scrollDirtyRegion() dirtyRegionOffset()

PySide2.QtWidgets.QAbstractItemView. setDragDropMode ( behavior ) ¶

参数

behavior – DragDropMode

另请参阅

dragDropMode()

PySide2.QtWidgets.QAbstractItemView. setDragDropOverwriteMode ( overwrite ) ¶

参数

overwrite – bool

另请参阅

dragDropOverwriteMode()

PySide2.QtWidgets.QAbstractItemView. setDragEnabled ( enable ) ¶

参数

enable – bool

另请参阅

dragEnabled()

PySide2.QtWidgets.QAbstractItemView. setDropIndicatorShown ( enable ) ¶

参数

enable – bool

PySide2.QtWidgets.QAbstractItemView. setEditTriggers ( triggers ) ¶

参数

triggers – EditTriggers

另请参阅

editTriggers()

PySide2.QtWidgets.QAbstractItemView. setHorizontalScrollMode ( mode ) ¶

参数

mode – ScrollMode

另请参阅

horizontalScrollMode()

PySide2.QtWidgets.QAbstractItemView. setHorizontalStepsPerItem ( steps ) ¶

参数

steps – int

注意

此函数被弃用。

Sets the horizontal scroll bar’s steps per item to steps .

This is the number of steps used by the horizontal scroll bar to represent the width of an item.

Note that if the view has a horizontal header, the item steps will be ignored and the header section size will be used instead.

另请参阅

horizontalStepsPerItem() setVerticalStepsPerItem()

PySide2.QtWidgets.QAbstractItemView. setIconSize ( size ) ¶

参数

size – QSize

另请参阅

iconSize()

PySide2.QtWidgets.QAbstractItemView. setIndexWidget ( index , widget ) ¶

参数

• index – QModelIndex

• widget – QWidget

设置给定 widget on the item at the given index , passing the ownership of the widget to the viewport.

若 index is invalid (e.g., if you pass the root index), this function will do nothing.

给定 widget ‘s autoFillBackground property must be set to true, otherwise the widget’s background will be transparent, showing both the model data and the item at the given index .

If index widget A is replaced with index widget B, index widget A will be deleted. For example, in the code snippet below, the QLineEdit object will be deleted.

setIndexWidget(index, QLineEdit())
...
setIndexWidget(index, QTextEdit())
											

This function should only be used to display static content within the visible area corresponding to an item of data. If you want to display custom dynamic content or implement a custom editor widget, subclass QStyledItemDelegate 代替。

另请参阅

indexWidget() 委托类

PySide2.QtWidgets.QAbstractItemView. setItemDelegate ( delegate ) ¶

参数

delegate – QAbstractItemDelegate

Sets the item delegate for this view and its model to delegate . This is useful if you want complete control over the editing and display of items.

任何现有委托将被移除，但不被删除。 QAbstractItemView 未拥有所有权对于 delegate .

警告

You should not share the same instance of a delegate between views. Doing so can cause incorrect or unintuitive editing behavior since each view connected to a given delegate may receive the closeEditor() signal, and attempt to access, modify or close an editor that has already been closed.

另请参阅

itemDelegate()

PySide2.QtWidgets.QAbstractItemView. setItemDelegateForColumn ( column , delegate ) ¶

参数

• column – int

• delegate – QAbstractItemDelegate

Sets the given item delegate used by this view and model for the given column . All items on column will be drawn and managed by delegate instead of using the default delegate (i.e., itemDelegate() ).

Any existing column delegate for column will be removed, but not deleted. QAbstractItemView 未拥有所有权对于 delegate .

注意

If a delegate has been assigned to both a row and a column, the row delegate will take precedence and manage the intersecting cell index.

警告

You should not share the same instance of a delegate between views. Doing so can cause incorrect or unintuitive editing behavior since each view connected to a given delegate may receive the closeEditor() signal, and attempt to access, modify or close an editor that has already been closed.

另请参阅

itemDelegateForColumn() setItemDelegateForRow() itemDelegate()

PySide2.QtWidgets.QAbstractItemView. setItemDelegateForRow ( row , delegate ) ¶

参数

• row – int

• delegate – QAbstractItemDelegate

Sets the given item delegate used by this view and model for the given row . All items on row will be drawn and managed by delegate instead of using the default delegate (i.e., itemDelegate() ).

Any existing row delegate for row will be removed, but not deleted. QAbstractItemView 未拥有所有权对于 delegate .

注意

If a delegate has been assigned to both a row and a column, the row delegate (i.e., this delegate) will take precedence and manage the intersecting cell index.

警告

You should not share the same instance of a delegate between views. Doing so can cause incorrect or unintuitive editing behavior since each view connected to a given delegate may receive the closeEditor() signal, and attempt to access, modify or close an editor that has already been closed.

另请参阅

itemDelegateForRow() setItemDelegateForColumn() itemDelegate()

PySide2.QtWidgets.QAbstractItemView. setModel ( model ) ¶

参数

model – QAbstractItemModel

设置 model for the view to present.

This function will create and set a new selection model, replacing any model that was previously set with setSelectionModel() . However, the old selection model will not be deleted as it may be shared between several views. We recommend that you delete the old selection model if it is no longer required. This is done with the following code:

m = view->selectionModel()
view->setModel(model())
del m
											

If both the old model and the old selection model do not have parents, or if their parents are long-lived objects, it may be preferable to call their deleteLater() functions to explicitly delete them.

The view does not take ownership of the model unless it is the model’s parent object because the model may be shared between many different views.

另请参阅

model() selectionModel() setSelectionModel()

PySide2.QtWidgets.QAbstractItemView. setRootIndex ( index ) ¶

参数

index – QModelIndex

Sets the root item to the item at the given index .

另请参阅

rootIndex()

PySide2.QtWidgets.QAbstractItemView. setSelection ( rect , command ) ¶

参数

• rect – QRect

• command – SelectionFlags

Applies the selection flags to the items in or touched by the rectangle, rect .

When implementing your own itemview should call selectionModel() ->select(selection, flags) where selection is either an empty QModelIndex 或 QItemSelection that contains all items that are contained in rect .

另请参阅

selectionCommand() selectedIndexes()

PySide2.QtWidgets.QAbstractItemView. setSelectionBehavior ( behavior ) ¶

参数

behavior – SelectionBehavior

另请参阅

selectionBehavior()

PySide2.QtWidgets.QAbstractItemView. setSelectionMode ( mode ) ¶

参数

mode – SelectionMode

另请参阅

selectionMode()

PySide2.QtWidgets.QAbstractItemView. setSelectionModel ( selectionModel ) ¶

参数

selectionModel – QItemSelectionModel

Sets the current selection model to the given selectionModel .

Note that, if you call setModel() after this function, the given selectionModel will be replaced by one created by the view.

注意

It is up to the application to delete the old selection model if it is no longer needed; i.e., if it is not being used by other views. This will happen automatically when its parent object is deleted. However, if it does not have a parent, or if the parent is a long-lived object, it may be preferable to call its deleteLater() function to explicitly delete it.

另请参阅

selectionModel() setModel() clearSelection()

PySide2.QtWidgets.QAbstractItemView. setState ( state ) ¶

参数

state – State

Sets the item view’s state to the given state .

另请参阅

state()

PySide2.QtWidgets.QAbstractItemView. setTabKeyNavigation ( enable ) ¶

参数

enable – bool

另请参阅

tabKeyNavigation()

PySide2.QtWidgets.QAbstractItemView. setTextElideMode ( mode ) ¶

参数

mode – TextElideMode

另请参阅

textElideMode()

PySide2.QtWidgets.QAbstractItemView. setVerticalScrollMode ( mode ) ¶

参数

mode – ScrollMode

另请参阅

verticalScrollMode()

PySide2.QtWidgets.QAbstractItemView. setVerticalStepsPerItem ( steps ) ¶

参数

steps – int

注意

此函数被弃用。

Sets the vertical scroll bar’s steps per item to steps .

This is the number of steps used by the vertical scroll bar to represent the height of an item.

Note that if the view has a vertical header, the item steps will be ignored and the header section size will be used instead.

另请参阅

verticalStepsPerItem() setHorizontalStepsPerItem()

PySide2.QtWidgets.QAbstractItemView. showDropIndicator ( ) ¶

返回类型

bool

PySide2.QtWidgets.QAbstractItemView. sizeHintForColumn ( column ) ¶

参数

column – int

返回类型

int

Returns the width size hint for the specified column or -1 if there is no model.

This function is used in views with a horizontal header to find the size hint for a header section based on the contents of the given column .

另请参阅

sizeHintForRow()

PySide2.QtWidgets.QAbstractItemView. sizeHintForIndex ( index ) ¶

参数

index – QModelIndex

返回类型

QSize

Returns the size hint for the item with the specified index or an invalid size for invalid indexes.

另请参阅

sizeHintForRow() sizeHintForColumn()

PySide2.QtWidgets.QAbstractItemView. sizeHintForRow ( row ) ¶

参数

row – int

返回类型

int

Returns the height size hint for the specified row or -1 if there is no model.

The returned height is calculated using the size hints of the given row ‘s items, i.e. the returned value is the maximum height among the items. Note that to control the height of a row, you must reimplement the sizeHint() 函数。

This function is used in views with a vertical header to find the size hint for a header section based on the contents of the given row .

另请参阅

sizeHintForColumn()

PySide2.QtWidgets.QAbstractItemView. startAutoScroll ( ) ¶

PySide2.QtWidgets.QAbstractItemView. startDrag ( supportedActions ) ¶

参数

supportedActions – DropActions

Starts a drag by calling drag->exec() using the given supportedActions .

PySide2.QtWidgets.QAbstractItemView. state ( ) ¶

返回类型

State

Returns the item view’s state.

另请参阅

setState()

PySide2.QtWidgets.QAbstractItemView. stopAutoScroll ( ) ¶

PySide2.QtWidgets.QAbstractItemView. tabKeyNavigation ( ) ¶

返回类型

bool

另请参阅

setTabKeyNavigation()

PySide2.QtWidgets.QAbstractItemView. textElideMode ( ) ¶

返回类型

TextElideMode

另请参阅

setTextElideMode()

PySide2.QtWidgets.QAbstractItemView. update ( index ) ¶

参数

index – QModelIndex

Updates the area occupied by the given index .

PySide2.QtWidgets.QAbstractItemView. updateEditorData ( ) ¶

Updates the data shown in the open editor widgets in the view.

PySide2.QtWidgets.QAbstractItemView. updateEditorGeometries ( ) ¶

Updates the geometry of the open editor widgets in the view.

PySide2.QtWidgets.QAbstractItemView. updateGeometries ( ) ¶

Updates the geometry of the child widgets of the view.

PySide2.QtWidgets.QAbstractItemView. verticalOffset ( ) ¶

返回类型

int

返回视图的垂直偏移。

在基类中，这是纯虚函数。

另请参阅

horizontalOffset()

PySide2.QtWidgets.QAbstractItemView. verticalScrollMode ( ) ¶

返回类型

ScrollMode

另请参阅

setVerticalScrollMode()

PySide2.QtWidgets.QAbstractItemView. verticalScrollbarAction ( action ) ¶

参数

action – int

PySide2.QtWidgets.QAbstractItemView. verticalScrollbarValueChanged ( value ) ¶

参数

value – int

PySide2.QtWidgets.QAbstractItemView. verticalStepsPerItem ( ) ¶

返回类型

int

注意

此函数被弃用。

Returns the vertical scroll bar’s steps per item.

另请参阅

setVerticalStepsPerItem() horizontalStepsPerItem()

PySide2.QtWidgets.QAbstractItemView. viewOptions ( ) ¶

返回类型

QStyleOptionViewItem

返回 QStyleOptionViewItem structure populated with the view’s palette, font, state, alignments etc.

PySide2.QtWidgets.QAbstractItemView. viewportEntered ( ) ¶

PySide2.QtWidgets.QAbstractItemView. visualRect ( index ) ¶

参数

index – QModelIndex

返回类型

QRect

返回项所占据的视口矩形在 index .

If your item is displayed in several areas then should return the primary area that contains index and not the complete area that index might encompasses, touch or cause drawing.

在基类中，这是纯虚函数。

另请参阅

indexAt() visualRegionForSelection()

PySide2.QtWidgets.QAbstractItemView. visualRegionForSelection ( selection ) ¶

参数

selection – QItemSelection

返回类型

QRegion

返回来自项视口的区域在给定 selection .

在基类中，这是纯虚函数。

另请参阅

visualRect() selectedIndexes()