QgsAttributesDnDTree Class Reference

This class overrides mime type handling to be able to work with the drag and drop attribute editor. More...

#include <qgsattributesformproperties.h>

Inheritance diagram for QgsAttributesDnDTree:

Public Types
enum	Type { Drag , Drop }

Public Slots
void	selectFirstMatchingItem (const QgsAttributesFormProperties::DnDTreeItemData &data)

Public Member Functions
	QgsAttributesDnDTree (QgsVectorLayer *layer, QWidget *parent=nullptr)
QTreeWidgetItem *	addContainer (QTreeWidgetItem *parent, const QString &title, int columnCount)
QTreeWidgetItem *	addItem (QTreeWidgetItem *parent, QgsAttributesFormProperties::DnDTreeItemData data, int index=-1, const QIcon &icon=QIcon())
	Adds a new item to a parent. More...
QgsExpressionContext	createExpressionContext () const override
	This method needs to be reimplemented in all classes which implement this interface and return an expression context. More...
void	setType (QgsAttributesDnDTree::Type value)
Type	type () const
Public Member Functions inherited from QgsExpressionContextGenerator
virtual	~QgsExpressionContextGenerator ()=default
virtual QgsExpressionContext	createExpressionContext () const =0
	This method needs to be reimplemented in all classes which implement this interface and return an expression context. More...

Protected Member Functions
void	dragMoveEvent (QDragMoveEvent *event) override
	Is called when mouse is moved over attributes tree before a drop event. More...
void	dropEvent (QDropEvent *event) override
bool	dropMimeData (QTreeWidgetItem *parent, int index, const QMimeData *data, Qt::DropAction action) override
QMimeData *	mimeData (const QList< QTreeWidgetItem * > &items) const override
QStringList	mimeTypes () const override

Detailed Description

This class overrides mime type handling to be able to work with the drag and drop attribute editor.

The mime type is application/x-qgsattributetablefield

Graphical representation for the attribute editor drag and drop editor

Definition at line 383 of file qgsattributesformproperties.h.

Member Enumeration Documentation

Type

enum QgsAttributesDnDTree::Type

Enumerator
Drag
Drop

Definition at line 397 of file qgsattributesformproperties.h.

Constructor & Destructor Documentation

QgsAttributesDnDTree()

QgsAttributesDnDTree::QgsAttributesDnDTree ( QgsVectorLayer *  layer, QWidget *  parent = nullptr  )

explicit

Definition at line 1079 of file qgsattributesformproperties.cpp.

Member Function Documentation

addContainer()

QTreeWidgetItem * QgsAttributesDnDTree::addContainer	(	QTreeWidgetItem *	parent,
		const QString &	title,
		int	columnCount
	)

Definition at line 1066 of file qgsattributesformproperties.cpp.

addItem()

QTreeWidgetItem * QgsAttributesDnDTree::addItem	(	QTreeWidgetItem *	parent,
		QgsAttributesFormProperties::DnDTreeItemData	data,
		int	index = -1,
		const QIcon &	icon = QIcon()
	)

Adds a new item to a parent.

If index is -1, the item is added to the end of the parent's existing children. Otherwise it is inserted at the specified index.

Definition at line 1086 of file qgsattributesformproperties.cpp.

createExpressionContext()

QgsExpressionContext QgsAttributesDnDTree::createExpressionContext ( ) const

overridevirtual

This method needs to be reimplemented in all classes which implement this interface and return an expression context.

Since

QGIS 3.0

Implements QgsExpressionContextGenerator.

Definition at line 1662 of file qgsattributesformproperties.cpp.

dragMoveEvent()

void QgsAttributesDnDTree::dragMoveEvent ( QDragMoveEvent *  event )

overrideprotected

Is called when mouse is moved over attributes tree before a drop event.

Used to inhibit dropping fields onto the root item.

Definition at line 1128 of file qgsattributesformproperties.cpp.

dropEvent()

void QgsAttributesDnDTree::dropEvent ( QDropEvent *  event )

overrideprotected

Definition at line 1214 of file qgsattributesformproperties.cpp.

dropMimeData()

bool QgsAttributesDnDTree::dropMimeData ( QTreeWidgetItem *  parent, int  index, const QMimeData *  data, Qt::DropAction  action  )

overrideprotected

Definition at line 1155 of file qgsattributesformproperties.cpp.

mimeData()

QMimeData * QgsAttributesDnDTree::mimeData ( const QList< QTreeWidgetItem * > &  items ) const

overrideprotected

Definition at line 1235 of file qgsattributesformproperties.cpp.

mimeTypes()

QStringList QgsAttributesDnDTree::mimeTypes ( ) const

overrideprotected

Definition at line 1227 of file qgsattributesformproperties.cpp.

selectFirstMatchingItem

void QgsAttributesDnDTree::selectFirstMatchingItem ( const QgsAttributesFormProperties::DnDTreeItemData &  data )

slot

Definition at line 1685 of file qgsattributesformproperties.cpp.

setType()

void QgsAttributesDnDTree::setType

(

QgsAttributesDnDTree::Type

value

)

Definition at line 1680 of file qgsattributesformproperties.cpp.

type()

QgsAttributesDnDTree::Type QgsAttributesDnDTree::type

(

)

const

Definition at line 1675 of file qgsattributesformproperties.cpp.

---

The documentation for this class was generated from the following files:

• /build/qgis-3.30.0+99sid/src/gui/vector/qgsattributesformproperties.h
• /build/qgis-3.30.0+99sid/src/gui/vector/qgsattributesformproperties.cpp