BALL::VIEW::DatasetController Class Reference

#include <BALL/VIEW/DATATYPE/dataset.h>

Inheritance diagram for BALL::VIEW::DatasetController:

Public Slots
virtual bool	write ()
	Show a file dialog for writing the selected Dataset.
bool	open ()
virtual bool	deleteDatasets ()
	Delete all Datasets.
virtual bool	deleteDataset ()
	Delete the currently highlighted Dataset.
Public Member Functions
	DatasetController ()
	DatasetController (DatasetController &dc)
virtual	~DatasetController ()
void	setDatasetControl (DatasetControl *dc)
DatasetControl *	getDatasetControl ()
virtual bool	handle (DatasetMessage *msg)
virtual bool	insertDataset (Dataset *set)
virtual bool	deleteDataset (Dataset *set)
virtual bool	createMenuEntries ()
virtual QMenu *	buildContextMenu (QTreeWidgetItem *item)
vector< Dataset * >	getDatasets ()
	Get all Datasets of this type in the DatasetControl.
vector< Dataset * >	getSelectedDatasets ()
	Get all selected Datasets of this type in the DatasetControl.
Dataset *	getSelectedDataset ()
bool	hasDataset (Dataset *set)
bool	hasItem (QTreeWidgetItem *item)
	Test if a given QTreeWidgetItem corresponds to a registered Dataset.
Dataset *	getDataset (QTreeWidgetItem *item)
	Get the Dataset for a QTreeWidgetItem.
String	getType ()
virtual void	checkMenu (MainControl &mc)
vector< String >	getSupportedFileFormats ()
Protected Member Functions
void	setStatusbarText (const String &text, bool important=false)
virtual bool	write (Dataset *, String, String)
virtual Dataset *	open (String, String)
String	getFileTypes_ ()
String	getNameFromFileName_ (String filename)
QAction *	insertMenuEntry_ (Position pid, const String &name, const char *slot, const String &description="", QKeySequence accel=QKeySequence())
virtual void	deleteDataset_ (Dataset *)
Protected Attributes
String	type_
vector< String >	file_formats_
DatasetControl *	control_
vector< QAction * >	actions_
HashSet< QAction * >	actions_for_one_set_
HashMap< QTreeWidgetItem , Dataset >	item_to_dataset_
HashMap< Dataset , QTreeWidgetItem >	dataset_to_item_
Friends
class	DatasetControl

Detailed Description

Controller base class for one type of Dataset A DatasetController provides all neccessary means to manage and manipulate a kind of data in the DatasetControl. The class has the following features:

It can be registered at a DatasetControl with the method DatasetControl::registerController.
It knows about its supported file formats, and can open them when requested. (see getSupportedFileFormats())
It will then automatically call createMenuEntries and thus create the menu entries. Derived classes can add further entries, by overloading this method.
The DatasetControl provides a context menu for the Datasets. Its entries are created in DatasetController::buildContextMenu.
Since DatasetController is derived from Embeddable, access to individual instances (also to derived classes) is possible through getInstance().
When a DatasetController is deleted, it deletes all Datasets and their data.

To use this class, derive a new class from it and overload/create the following methods:

getData
buildContextMenu
creatMenuEntries
open
write
deleteDataset_

Furthermore

add a static String member type
assign file_formats_ in the derived classes constructor

See also:: DatasetControl; Dataset; DatasetMessage; Embeddable

Definition at line 188 of file dataset.h.

Constructor & Destructor Documentation

BALL::VIEW::DatasetController::DatasetController ( )

BALL::VIEW::DatasetController::DatasetController ( DatasetController & dc )

virtual BALL::VIEW::DatasetController::~DatasetController ( ) [virtual]

Member Function Documentation

virtual QMenu* BALL::VIEW::DatasetController::buildContextMenu ( QTreeWidgetItem * item ) [virtual]

Create a context menu for this data type. Initial support for deleting and saving entries is included. Overload this method for providing further entries.

Reimplemented in BALL::VIEW::RegularData3DController, BALL::VIEW::TrajectoryController, BALL::VIEW::DockResultController, BALL::VIEW::VectorGridController, and BALL::VIEW::RaytraceableGridController.

virtual void BALL::VIEW::DatasetController::checkMenu ( MainControl & mc ) [virtual]

Check the menu entries for this data type. If the MainControl is currently busy, all entries are disabled. If multiple entries are selected, it is tested, if an QAction is included in actions_for_one_set_. If true, this QAction is disabled. Overload this method for more sophisticated behaviour.

virtual bool BALL::VIEW::DatasetController::createMenuEntries ( ) [virtual]

Create menu entries for this data type. Initial support for open file menu entry is included. Overload this method for providing further entries.

Reimplemented in BALL::VIEW::RegularData3DController, BALL::VIEW::TrajectoryController, BALL::VIEW::DockResultController, BALL::VIEW::VectorGridController, and BALL::VIEW::RaytraceableGridController.

virtual bool BALL::VIEW::DatasetController::deleteDataset ( ) [virtual, slot]

Delete the currently highlighted Dataset.

virtual bool BALL::VIEW::DatasetController::deleteDataset ( Dataset * set ) [virtual]

virtual void BALL::VIEW::DatasetController::deleteDataset_ ( Dataset * ) [inline, protected, virtual]

In the derived class: cast to concrete type and delete the data!

Reimplemented in BALL::VIEW::RegularData3DController, BALL::VIEW::TrajectoryController, BALL::VIEW::DockResultController, BALL::VIEW::VectorGridController, and BALL::VIEW::RaytraceableGridController.

Definition at line 315 of file dataset.h.

virtual bool BALL::VIEW::DatasetController::deleteDatasets ( ) [virtual, slot]

Delete all Datasets.

Dataset* BALL::VIEW::DatasetController::getDataset ( QTreeWidgetItem * item )

Get the Dataset for a QTreeWidgetItem.

DatasetControl* BALL::VIEW::DatasetController::getDatasetControl ( ) [inline]

Definition at line 213 of file dataset.h.

vector<Dataset*> BALL::VIEW::DatasetController::getDatasets ( )

Get all Datasets of this type in the DatasetControl.

String BALL::VIEW::DatasetController::getFileTypes_ ( ) [protected]

String BALL::VIEW::DatasetController::getNameFromFileName_ ( String filename ) [protected]

Dataset* BALL::VIEW::DatasetController::getSelectedDataset ( )

Get one selected Datasets of this type in the DatasetControl. If multiple entries are selected in the DatasetControl, 0 is returned.

vector<Dataset*> BALL::VIEW::DatasetController::getSelectedDatasets ( )

Get all selected Datasets of this type in the DatasetControl.

vector<String> BALL::VIEW::DatasetController::getSupportedFileFormats ( ) [inline]

Return a vector with all supported file formats. Set the member file_formats_ in the constructor of the derived class. The methods open(...) and write(...) must be overloaded such that they know how to handle the supported file formats.

Definition at line 281 of file dataset.h.

String BALL::VIEW::DatasetController::getType ( ) [inline]

Get the String type identifier for this data type.

Definition at line 266 of file dataset.h.

virtual bool BALL::VIEW::DatasetController::handle ( DatasetMessage * msg ) [virtual]

Message handling. If a DatasetControl receives a DatasetMessage, it queries the data type and calls this method in the corresponding DatasetController. This method has intial support for DatasetMessage::ADD and DatasetMessage::REMOVE. For these cases, it calls insertDataset or respectively deleteDataset.

bool BALL::VIEW::DatasetController::hasDataset ( Dataset * set )

Test if a Dataset is registered in this controller.

bool BALL::VIEW::DatasetController::hasItem ( QTreeWidgetItem * item )

Test if a given QTreeWidgetItem corresponds to a registered Dataset.

virtual bool BALL::VIEW::DatasetController::insertDataset ( Dataset * set ) [virtual]

QAction* BALL::VIEW::DatasetController::insertMenuEntry_	(	Position	pid,
		const String &	name,
		const char *	slot,
		const String &	description = `""`,
		QKeySequence	accel = `QKeySequence()`
	)			`[protected]`