ehm_dal::column_data::ColumnData Class Reference

The ColumnData class represents a container of ehm_dal::column_data::Column and attributes relating to the columns of a table (e.g. column count). ColumnData represents the columns of a single table. More...

#include <column_data.h>

Inheritance diagram for ehm_dal::column_data::ColumnData:

Public Types
enum	COLUMN_DATA_SETTINGS {   NO_SETTINGS = 1 << 0 , DO_NOT_USE_EXTRA_COLUMNS = 1 << 2 , HAS_NO_ID_COLUMN = 1 << 3 , HAS_UID_COLUMN = 1 << 4 ,   FORCE_CACHING = 1 << 5 , REBUILD_PRIORITY = 1 << 6 , SORTABLE_TABLE = 1 << 7 , USES_IDENTIFIER_SINGLE_STRING = 1 << 8 ,   USES_IDENTIFIER_STRING_LIST = 1 << 9 }
	The COLUMN_DATA_SETTINGS enum represents settings for ColumnData. More...
enum	COLUMN_DATA_INDEXES {   FirstColumn = 0 , Id = FirstColumn , Uid , DisplayText ,   SubHeadingText , ValidationStatus , IsModifiedByDbXfer , DbXferImportId ,   FirstStandardDerivedColumnIndex , FirstIdOnlyDerivedColumnIndex = Id + 1 , Text = DisplayText }
	The COLUMN_DATA_INDEXES enum sets out the base Column indexes within the ColumnData. Derived class ColumnData indexes commence from FirstStandardDerivedColumnIndex or FirstIdOnlyDerivedColumnIndex as applicable. More...

Public Member Functions
	ColumnData (const quint16 settings=NO_SETTINGS)
	Default constructor.
void	add (const Column &column)
	Adds the column to the column data. Note this moves column.
void	add (const ColumnData &data)
	Adds all of the columns from data to the column data.
bool	isCached () const
	Returns whether any cached columns are present.
void	setCacheComplete (const bool is_cached)
	Sets the cached status of any cached columns.
qint32	columnCount () const
	Returns the number of columns.
const Column *	column (const qint32 column_id) const
	Returns a raw pointer to the Column with a column index of column_id.
QSize	dimensions (const qint32 column_id) const
	Returns the dimensions of the Column with a column index of column_id.
qint32	firstDerivedColumnIndex () const
	Returns the first column index of the class derived from ColumnData.
Qt::ItemFlags	flags (const QModelIndex &index) const
	Returns the Qt::ItemFlags in respect of the column from index.
bool	isInitialised () const
	Returns whether or not any columns have been added to the column data.
QString	name (const qint32 column_id) const
	Returns the name of the Column with a column index of column_id.
bool	hasExtraColumns () const
	Returns whether or not COLUMN_DATA_SETTINGS::DO_NOT_USE_EXTRA_COLUMNS is false.
bool	hasIdColumn () const
	Returns whether or not COLUMN_DATA_SETTINGS::HAS_NO_ID_COLUMN is false.
bool	hasRebuildPriority () const
	Returns whether or not COLUMN_DATA_SETTINGS::REBUILD_PRIORITY is true.
bool	hasUidColumn () const
	Returns whether or not COLUMN_DATA_SETTINGS::HAS_UID_COLUMN is true.
bool	isSortable () const
	Returns whether or not COLUMN_DATA_SETTINGS::SORTABLE_TABLE is true.
bool	usesIdentifierSingleString () const
	Returns whether or not COLUMN_DATA_SETTINGS::USES_IDENTIFIER_SINGLE_STRING is true.
bool	usesIdentifierStringList () const
	Returns whether or not COLUMN_DATA_SETTINGS::USES_IDENTIFIER_STRING_LIST is true.
void	validateIdentifierSetting ()
	Validates the identifier setting in order to ensure it is correctly set.
bool	operator== (const ColumnData &rhs) const
bool	operator!= (const ColumnData &rhs) const
void	clearAll ()
	Clear all column data (including any default columns).
bool	isValid (const qint32 column_id) const
	Checks whether a 'Column' is present with a column index equal to column_id

Detailed Description

The ColumnData class represents a container of ehm_dal::column_data::Column and attributes relating to the columns of a table (e.g. column count). ColumnData represents the columns of a single table.

Member Enumeration Documentation

COLUMN_DATA_INDEXES

enum ehm_dal::column_data::ColumnData::COLUMN_DATA_INDEXES

The COLUMN_DATA_INDEXES enum sets out the base Column indexes within the ColumnData. Derived class ColumnData indexes commence from FirstStandardDerivedColumnIndex or FirstIdOnlyDerivedColumnIndex as applicable.

Enumerator
Id	Item id
Uid	Item unique id
DisplayText	Display text
SubHeadingText	Sub-heading text
ValidationStatus	Validation status
IsModifiedByDbXfer	Has been modified by a DB xfer/import
DbXferImportId	DB xfer/import id
FirstStandardDerivedColumnIndex	For tables with all of the above fields
FirstIdOnlyDerivedColumnIndex	For tables with an id column only
Text	For backwards compatibility

COLUMN_DATA_SETTINGS

enum ehm_dal::column_data::ColumnData::COLUMN_DATA_SETTINGS

The COLUMN_DATA_SETTINGS enum represents settings for ColumnData.

Enumerator
DO_NOT_USE_EXTRA_COLUMNS	No validation status, display text, etc columns
HAS_NO_ID_COLUMN	Has no id column
HAS_UID_COLUMN	Has a uid column
FORCE_CACHING	Force caching where a table wouldn't otherwise be cached
REBUILD_PRIORITY	Table should be rebuilt prior to other tables
SORTABLE_TABLE	Table can be sorted
USES_IDENTIFIER_SINGLE_STRING	Single identifier string
USES_IDENTIFIER_STRING_LIST	String list of identifiers

Constructor & Destructor Documentation

ColumnData()

ehm_dal::column_data::ColumnData::ColumnData

(

const quint16

settings = NO_SETTINGS

)

Default constructor.

Parameters

settings

The ColumnData::COLUMN_DATA_SETTINGS to apply

Member Function Documentation

add() [1/2]

void ehm_dal::column_data::ColumnData::add

(

const Column &

column

)

Adds the column to the column data. Note this moves column.

Parameters

column

to be added to the column data.

add() [2/2]

void ehm_dal::column_data::ColumnData::add

(

const ColumnData &

data

)

Adds all of the columns from data to the column data.

Parameters

data	containing the columns to be added.

column()

const Column * ehm_dal::column_data::ColumnData::column

(

const qint32

column_id

)

const

Returns a raw pointer to the Column with a column index of column_id.

Parameters

column_id

column index

dimensions()

QSize ehm_dal::column_data::ColumnData::dimensions

(

const qint32

column_id

)

const

Returns the dimensions of the Column with a column index of column_id.

Parameters

column_id

column index

isValid()

bool ehm_dal::column_data::ColumnData::isValid

(

const qint32

column_id

)

const

Checks whether a 'Column' is present with a column index equal to column_id

Parameters

column_id

the selected column index

setCacheComplete()

void ehm_dal::column_data::ColumnData::setCacheComplete ( const bool  is_cached )

inline

Sets the cached status of any cached columns.

Parameters

is_cached

whether or not the underlying data has been cached