Handler for missing layers within project. More...

#include <qgsprojectbadlayerguihandler.h>

Inheritance diagram for QgsProjectBadLayerGuiHandler:

Public Member Functions
	QgsProjectBadLayerGuiHandler ()

virtual void	handleBadLayers (QList< QDomNode > layers, QDomDocument projectDom) override
	Implementation of the handler. More...

Public Member Functions inherited from QObject
	QObject (QObject *parent)

	QObject (QObject parent, const char name)

virtual	~QObject ()

bool	blockSignals (bool block)

QObject *	child (const char objName, const char inheritsClass, bool recursiveSearch) const

const QObjectList &	children () const

const char *	className () const

bool	connect (const QObject sender, const char signal, const char *method, Qt::ConnectionType type) const

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const QObject receiver, const char method)

bool	disconnect (const char signal, const QObject receiver, const char *method)

void	dumpObjectInfo ()

void	dumpObjectTree ()

QList< QByteArray >	dynamicPropertyNames () const

virtual bool	event (QEvent *e)

virtual bool	eventFilter (QObject watched, QEvent event)

T	findChild (const QString &name) const

QList< T >	findChildren (const QRegExp &regExp) const

QList< T >	findChildren (const QString &name) const

bool	inherits (const char *className) const

void	insertChild (QObject *object)

void	installEventFilter (QObject *filterObj)

bool	isA (const char *className) const

bool	isWidgetType () const

void	killTimer (int id)

virtual const QMetaObject *	metaObject () const

void	moveToThread (QThread *targetThread)

const char *	name () const

const char *	name (const char *defaultName) const

QString	objectName () const

QObject *	parent () const

QVariant	property (const char *name) const

void	removeChild (QObject *object)

void	removeEventFilter (QObject *obj)

void	setName (const char *name)

void	setObjectName (const QString &name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	signalsBlocked () const

int	startTimer (int interval)

QThread *	thread () const

Public Member Functions inherited from QgsProjectBadLayerHandler
virtual	~QgsProjectBadLayerHandler ()

Static Public Attributes
static bool	mIgnore = false
	Flag to store the Ignore button press of MessageBox used by QgsLegend. More...

Protected Types
enum	DataType { IS_VECTOR, IS_RASTER, IS_BOGUS }
	file data representation More...

enum	ProviderType { IS_FILE, IS_DATABASE, IS_URL, IS_Unknown }
	the three flavors for data More...

Protected Member Functions
QString	dataSource (QDomNode &layerNode)
	Return the data source for the given layer. More...

DataType	dataType (QDomNode &layerNode)
	Returns data type associated with the given QgsProject file Dom node. More...

bool	findLayer (const QString &fileFilters, const QDomNode &constLayerNode)
	Find relocated data source for the given layer. More...

void	findLayers (const QString &fileFilters, const QList< QDomNode > &layerNodes)
	Find relocated data sources for given layers. More...

bool	findMissingFile (const QString &fileFilters, QDomNode &layerNode)
	This is used to locate files that have moved or otherwise are missing. More...

ProviderType	providerType (QDomNode &layerNode)
	Return the physical storage type associated with the given layer. More...

void	setDataSource (QDomNode &layerNode, const QString &dataSource)
	Set the datasource element to the new value. More...

Protected Member Functions inherited from QObject
bool	checkConnectArgs (const char signal, const QObject object, const char *method)

virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const char *signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const char *signal)

int	receivers (const char *signal) const

QObject *	sender () const

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *event)

Additional Inherited Members
Static Public Member Functions inherited from QObject
bool	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

bool	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

QString	tr (const char sourceText, const char disambiguation, int n)

QString	trUtf8 (const char sourceText, const char disambiguation, int n)

Static Protected Member Functions inherited from QObject
QByteArray	normalizeSignalSlot (const char *signalSlot)

Properties inherited from QObject
	objectName

Detailed Description

Handler for missing layers within project.

Gives user a chance to select path to the missing layers.

Definition at line 25 of file qgsprojectbadlayerguihandler.h.

Constructor & Destructor Documentation

QgsProjectBadLayerGuiHandler::QgsProjectBadLayerGuiHandler ( )

Definition at line 28 of file qgsprojectbadlayerguihandler.cpp.

Member Function Documentation

QString QgsProjectBadLayerGuiHandler::dataSource ( QDomNode & layerNode )

protected

Return the data source for the given layer.

The QDomNode is a QgsProject Dom node corresponding to a map layer state.

Essentially dumps datasource tag.

Definition at line 114 of file qgsprojectbadlayerguihandler.cpp.

QgsProjectBadLayerGuiHandler::DataType QgsProjectBadLayerGuiHandler::dataType ( QDomNode & layerNode )

protected

Returns data type associated with the given QgsProject file Dom node.

The Dom node should represent the state associated with a specific layer.

Definition at line 84 of file qgsprojectbadlayerguihandler.cpp.

bool QgsProjectBadLayerGuiHandler::findLayer	(	const QString &	fileFilters,
		const QDomNode &	constLayerNode
	)

protected

Find relocated data source for the given layer.

This QDom object represents a QgsProject node that maps to a specific layer.

Parameters

fileFilters	file filters to use
constLayerNode	QDom node containing layer project information

Todo:

XXX Only implemented for file based layers. It will need to be extended for XXX other data source types such as databases.

Definition at line 258 of file qgsprojectbadlayerguihandler.cpp.

void QgsProjectBadLayerGuiHandler::findLayers	(	const QString &	fileFilters,
		const QList< QDomNode > &	layerNodes
	)

protected

Find relocated data sources for given layers.

These QDom objects represent QgsProject nodes that map to specific layers.

Definition at line 290 of file qgsprojectbadlayerguihandler.cpp.

bool QgsProjectBadLayerGuiHandler::findMissingFile	(	const QString &	fileFilters,
		QDomNode &	layerNode
	)

protected

This is used to locate files that have moved or otherwise are missing.

Definition at line 190 of file qgsprojectbadlayerguihandler.cpp.

void QgsProjectBadLayerGuiHandler::handleBadLayers	(	QList< QDomNode >	layers,
		QDomDocument	projectDom
	)

overridevirtual

Implementation of the handler.

Implements QgsProjectBadLayerHandler.

Definition at line 34 of file qgsprojectbadlayerguihandler.cpp.

QgsProjectBadLayerGuiHandler::ProviderType QgsProjectBadLayerGuiHandler::providerType ( QDomNode & layerNode )

protected

Return the physical storage type associated with the given layer.

The QDomNode is a QgsProject Dom node corresponding to a map layer state.

If the provider tag is "ogr", then it's a file type.

However, if the layer is a raster, then there won't be a provider tag. It will always have an associated file.

If the layer doesn't fall into either of the previous two categories, then it's either a database or URL. If the datasource tag has "url=", then it's URL based and if it has "dbname=">, then the layer data is in a database.

Definition at line 132 of file qgsprojectbadlayerguihandler.cpp.