QListView Class Reference
^{^{[

QtGui

module]}}

QListView 类为模型提供列表或图标视图。更多...

继承 QAbstractItemView .

Inherited by QHelpIndexWidget , QListWidget and QUndoView .

类型

enum Flow { LeftToRight, TopToBottom }
enum LayoutMode { SinglePass, Batched }
enum Movement { Static, Free, Snap }
enum ResizeMode { Fixed, Adjust }
enum ViewMode { ListMode, IconMode }

方法

__init__ ( self , QWidget parent = None)
int batchSize ( self )
clearPropertyFlags ( self )
currentChanged ( self , QModelIndex current , QModelIndex 上一 )
dataChanged ( self , QModelIndex topLeft , QModelIndex bottomRight )
dragLeaveEvent ( self , QDragLeaveEvent e )
dragMoveEvent ( self , QDragMoveEvent e )
dropEvent ( self , QDropEvent e )
bool event ( self , QEvent e )
Flow flow ( self )
QSize gridSize ( self )
int horizontalOffset ( self )
QModelIndex indexAt ( self , QPoint p )
bool isIndexHidden ( self , QModelIndex index )
bool isRowHidden ( self , int row )
bool isSelectionRectVisible ( self )
bool isWrapping ( self )
LayoutMode layoutMode ( self )
int modelColumn ( self )
mouseMoveEvent ( self , QMouseEvent e )
mouseReleaseEvent ( self , QMouseEvent e )
QModelIndex moveCursor ( self , QAbstractItemView.CursorAction cursorAction , Qt.KeyboardModifiers modifiers )
Movement movement ( self )
paintEvent ( self , QPaintEvent e )
QRect rectForIndex ( self , QModelIndex index )
reset ( self )
resizeEvent ( self , QResizeEvent e )
ResizeMode resizeMode ( self )
rowsAboutToBeRemoved ( self , QModelIndex parent , int start , int end )
rowsInserted ( self , QModelIndex parent , int start , int end )
scrollContentsBy ( self , int dx , int dy )
scrollTo ( self , QModelIndex index , QAbstractItemView.ScrollHint hint = QAbstractItemView.EnsureVisible)
list-of-QModelIndex selectedIndexes ( self )
selectionChanged ( self , QItemSelection selected , QItemSelection deselected )
setBatchSize ( self , int batchSize )
setFlow ( self , Flow flow )
setGridSize ( self , QSize size )
setLayoutMode ( self , LayoutMode mode )
setModelColumn ( self , int column )
setMovement ( self , Movement movement )
setPositionForIndex ( self , QPoint position , QModelIndex index )
setResizeMode ( self , ResizeMode mode )
setRootIndex ( self , QModelIndex index )
setRowHidden ( self , int row , bool hide )
setSelection ( self , QRect rect , QItemSelectionModel.SelectionFlags command )
setSelectionRectVisible ( self , bool show )
setSpacing ( self , int space )
setUniformItemSizes ( self , bool enable )
setViewMode ( self , ViewMode mode )
setWordWrap ( self , bool on )
setWrapping ( self , bool enable )
int spacing ( self )
startDrag ( self , Qt.DropActions supportedActions )
timerEvent ( self , QTimerEvent e )
bool uniformItemSizes ( self )
updateGeometries ( self )
int verticalOffset ( self )
ViewMode viewMode ( self )
QStyleOptionViewItem viewOptions ( self )
QRect visualRect ( self , QModelIndex index )
QRegion visualRegionForSelection ( self , QItemSelection selection )
bool wordWrap ( self )

Qt Signals

void indexesMoved (const QModelIndexList&)

详细描述

The QListView class provides a list or icon view onto a model.

A QListView presents items stored in a model, either as a simple non-hierarchical list, or as a collection of icons. This class is used to provide lists and icon views that were previously provided by the QListBox and QIconView classes, but using the more flexible approach provided by Qt's model/view architecture.

QListView 类是一种模型/视图类且属于 Qt 的模型/视图框架 .

This view does not display horizontal or vertical headers; to display a list of items with a horizontal header, use QTreeView 代替。

QListView implements the interfaces defined by the QAbstractItemView class to allow it to display data provided by models derived from the QAbstractItemModel 类。

Items in a list view can be displayed using one of two view modes: In ListMode ， items are displayed in the form of a simple list; in IconMode , the list view takes the form of an icon view in which the items are displayed with icons like files in a file manager. By default, the list view 是在 ListMode . To change the view mode, use the setViewMode () function, and to determine the current view mode, use viewMode ().

Items in these views are laid out in the direction specified by the flow () of the list view. The items may be fixed in place, or allowed to move, depending on the view's movement () 状态。

If the items in the model cannot be completely laid out in the direction of flow, they can be wrapped at the boundary of the view widget; this depends on isWrapping (). This property is useful when the items are being represented by an icon view.

resizeMode () and layoutMode () govern how and when the items are laid out. Items are spaced according to their spacing (), and can exist within a notional grid of size specified by gridSize (). The items can be rendered as large or small icons depending on their iconSize ().


A Windows XP style list view.	A Macintosh style list view.	A Plastique style list view.

改善性能

It is possible to give the view hints about the data it is handling in order to improve its performance when displaying large numbers of items. One approach that can be taken for views that are intended to display items with equal sizes is to set the uniformItemSizes property to true.

类型文档编制

QListView.Flow

常量	值	描述
`QListView.LeftToRight`	`0`	The items are laid out in the view from the left to the right.
`QListView.TopToBottom`	`1`	The items are laid out in the view from the top to the bottom.

QListView.LayoutMode

常量	值	描述
`QListView.SinglePass`	`0`	一次性布局所有项。
`QListView.Batched`	`1`	The items are laid out in batches of batchSize 项。

另请参阅 batchSize .

QListView.Movement

常量	值	描述
`QListView.Static`	`0`	The items cannot be moved by the user.
`QListView.Free`	`1`	The items can be moved freely by the user.
`QListView.Snap`	`2`	The items snap to the specified grid when moved; see setGridSize ().

QListView.ResizeMode

常量	值	描述
`QListView.Fixed`	`0`	The items will only be laid out the first time the view is shown.
`QListView.Adjust`	`1`	The items will be laid out every time the view is resized.

QListView.ViewMode

常量	值	描述
`QListView.ListMode`	`0`	The items are laid out using TopToBottom flow, with Small size and Static movement
`QListView.IconMode`	`1`	The items are laid out using LeftToRight flow, with Large size and Free movement

方法文档编制

QListView.init ( self , QWidget parent = None)

parent argument, if not None, causes self to be owned by Qt instead of PyQt.

创建新的 QListView 采用 given parent to view a model. Use setModel () 去设置 model.

int QListView.batchSize ( self )

QListView.clearPropertyFlags ( self )

清零 QListView -specific property flags. See viewMode .

Properties inherited from QAbstractItemView are not covered by the property flags. Specifically, dragEnabled and acceptsDrops are computed by QListView when calling setMovement () 或 setViewMode ().

bool QListView.event ( self , QEvent e )

重实现自 QObject.event ().

Flow QListView.flow ( self )

QSize QListView.gridSize ( self )

int QListView.horizontalOffset ( self )

重实现自 QAbstractItemView.horizontalOffset ().

QModelIndex QListView.indexAt ( self , QPoint p )

重实现自 QAbstractItemView.indexAt ().

bool QListView.isIndexHidden ( self , QModelIndex index )

重实现自 QAbstractItemView.isIndexHidden ().

bool QListView.isRowHidden ( self , int row )

返回 true 若 row 被隐藏；否则返回 false.

bool QListView.isSelectionRectVisible ( self )

bool QListView.isWrapping ( self )

LayoutMode QListView.layoutMode ( self )

int QListView.modelColumn ( self )

QListView.mouseMoveEvent ( self , QMouseEvent e )

重实现自 QWidget.mouseMoveEvent ().

QListView.mouseReleaseEvent ( self , QMouseEvent e )

重实现自 QWidget.mouseReleaseEvent ().

QModelIndex QListView.moveCursor ( self , QAbstractItemView.CursorAction cursorAction , Qt.KeyboardModifiers modifiers )

重实现自 QAbstractItemView.moveCursor ().

Movement QListView.movement ( self )

QListView.paintEvent ( self , QPaintEvent e )

重实现自 QWidget.paintEvent ().

QRect QListView.rectForIndex ( self , QModelIndex index )

Returns the rectangle of the item at position index in the model. The rectangle is in contents coordinates.

另请参阅 visualRect ().

QListView.reset ( self )

QListView.resizeEvent ( self , QResizeEvent e )

重实现自 QWidget.resizeEvent ().

ResizeMode QListView.resizeMode ( self )

QListView.rowsAboutToBeRemoved ( self , QModelIndex parent , int start , int end )

重实现自 QAbstractItemView.rowsAboutToBeRemoved ().

QListView.rowsInserted ( self , QModelIndex parent , int start , int end )

重实现自 QAbstractItemView.rowsInserted ().

QListView.scrollContentsBy ( self , int dx , int dy )

QListView.scrollTo ( self , QModelIndex index , QAbstractItemView.ScrollHint hint = QAbstractItemView.EnsureVisible)

重实现自 QAbstractItemView.scrollTo ().

list-of-QModelIndex QListView.selectedIndexes ( self )

重实现自 QAbstractItemView.selectedIndexes ().

QListView.selectionChanged ( self , QItemSelection selected , QItemSelection deselected )

重实现自 QAbstractItemView.selectionChanged ().

QListView.setBatchSize ( self , int batchSize )

QListView.setFlow ( self , Flow flow )

QListView.setGridSize ( self , QSize size )

QListView.setLayoutMode ( self , LayoutMode mode )

QListView.setModelColumn ( self , int column )

QListView.setMovement ( self , Movement movement )

QListView.setPositionForIndex ( self , QPoint position , QModelIndex index )

Sets the contents position of the item at index 在 model to the given position . If the list view's movement mode is Static or its view mode is ListView , this function will have no 效果。

该函数在 Qt 4.1 引入。

QListView.setResizeMode ( self , ResizeMode mode )

QListView.setRootIndex ( self , QModelIndex index )

QListView.setRowHidden ( self , int row , bool hide )

若 hide is true, the given row will be hidden; otherwise the row will be shown.

另请参阅 isRowHidden ().

QListView.setSelection ( self , QRect rect , QItemSelectionModel.SelectionFlags command )

重实现自 QAbstractItemView.setSelection ().

QListView.setSelectionRectVisible ( self , bool show )

QListView.setSpacing ( self , int space )

QListView.setUniformItemSizes ( self , bool enable )

QListView.setViewMode ( self , ViewMode mode )

QListView.setWordWrap ( self , bool on )

QListView.setWrapping ( self , bool enable )

int QListView.spacing ( self )

QListView.startDrag ( self , Qt.DropActions supportedActions )

重实现自 QAbstractItemView.startDrag ().

QListView.timerEvent ( self , QTimerEvent e )

重实现自 QObject.timerEvent ().

bool QListView.uniformItemSizes ( self )

QListView.updateGeometries ( self )

重实现自 QAbstractItemView.updateGeometries ().

int QListView.verticalOffset ( self )

重实现自 QAbstractItemView.verticalOffset ().

ViewMode QListView.viewMode ( self )

QStyleOptionViewItem QListView.viewOptions ( self )

重实现自 QAbstractItemView.viewOptions ().

QRect QListView.visualRect ( self , QModelIndex index )

重实现自 QAbstractItemView.visualRect ().

QRegion QListView.visualRegionForSelection ( self , QItemSelection selection )

重实现自 QAbstractItemView.visualRegionForSelection ().

Since 4.7, the returned region only contains rectangles intersecting (or included in) the viewport.

bool QListView.wordWrap ( self )

Qt Signal Documentation

void indexesMoved (const QModelIndexList&)

This is the default overload of this signal.

此信号被发射当指定 indexes are moved in the view.

该函数在 Qt 4.2 引入。

QListView Class Reference [ QtGui module]

类型

方法