Field gadget class. More...

#include <ilviews/dataccess/gadgets/tblcombo.h>

Inheritance diagram for IliScrolledComboBox:

Public Member Functions
	IliScrolledComboBox (IlvDisplay display, const IlvPoint &point, const char label, const char const labels=0, IlUShort count=0, IlUShort thickness=IlvDefaultGadgetThickness, IlvPalette *palette=0)
	Constructor. More...

	IliScrolledComboBox (IlvDisplay display, const IlvRect &rect, const char label, const char const labels=0, IlUShort count=0, IlUShort thickness=IlvDefaultGadgetThickness, IlvPalette *palette=0)
	Constructor. More...

virtual IlBoolean	f_externalToInternal ()
	Updates the internal value of a field according to its current external representation. More...

virtual const IliValue &	f_getValue (IlBoolean=IlFalse) const
	Returns the value of the field. More...

virtual void	f_internalToExternal ()
	Updates the external representation of the field and its display according to its current internal value.

virtual IlBoolean	f_isConsistent () const
	Returns `IlTrue` if the internal value of the field corresponds to its current external representation. More...

virtual IlBoolean	f_isReadOnly () const
	Returns `IlTrue` if the field is read-only. More...

virtual void	f_setForeignDisplayColumnName (const char *)
	Sets the name of the column of the foreign table that will serve as a result, when the table is used as a map to convert internal values into external representations. More...

virtual void	f_setForeignTable (IliTable *, IlBoolean=IlFalse)
	Sets the foreign table of the field. More...

virtual void	f_setForeignValueColumnName (const char *)
	Sets the name of the column of the foreign table that will serve as a key, when the table is used as a map to convert internal values into external representations. More...

virtual void	f_setReadOnly (IlBoolean)
	Sets the read-only property for the field. More...

virtual IlBoolean	f_setValue (const IliValue &, IlBoolean=IlFalse)
	Sets the value of the field. More...

Public Member Functions inherited from IliFieldItf
void	f_applyReferences (IlvApplyObject f, IlAny a)
	Should be called when the `applyReferences()` member function, of the gadget class, is called. More...

virtual IlBoolean	f_complete ()
	Updates the internal value of the field, according to its current external representation and its foreign table, provided completion is enabled for the field. More...

virtual void	f_enableCompletion (IlBoolean flag)
	Sets the completion property of the field. More...

virtual IlvAlignment	f_getAlignment () const
	Returns the text alignment of the field. More...

const IliDataSource *	f_getDataSource () const
	Returns the data source. More...

IliDataSource *	f_getDataSource ()
	Returns the data source. More...

const char *	f_getDataSourceColumnName () const
	Returns the name of the column. More...

const char *	f_getDataSourceName () const
	Returns the name of the data source, which this field is (or must be) connected to. More...

virtual const IliTablePropertyManager *	f_getEffectiveTablePropertyManager () const
	Returns the effective table property manager. More...

virtual IliTablePropertyManager *	f_getEffectiveTablePropertyManager ()
	Returns the effective table property manager. More...

const char *	f_getForeignDataSourceName () const
	Returns the name of the foreign data source. More...

const char *	f_getForeignDisplayColumnName () const
	Returns the name of the column of the foreign table that will serve as a result. More...

const IliTable *	f_getForeignTable () const
	Returns the foreign table. More...

IliTable *	f_getForeignTable ()
	Returns the foreign table. More...

const char *	f_getForeignValueColumnName () const
	Returns the name of the column of the foreign table that will serve as a key. More...

virtual const IliFormat &	f_getFormat () const
	Returns the format used to derive the external representation of the field from its internal value. More...

const IlvGadget *	f_getGadget () const
	Returns the constant gadget associated with this field through multiple inheritance. More...

IlvGadget *	f_getGadget ()
	Returns the gadget associated with this field through multiple inheritance. More...

const IlvGraphic *	f_getGraphic () const
	Returns the constant graphic associated with this field through multiple inheritance. More...

IlvGraphic *	f_getGraphic ()
	Returns the graphic associated with this field through multiple inheritance. More...

virtual const char *	f_getLabel () const
	Returns the label displayed by the field gadget. More...

virtual const IliInputMask &	f_getMask () const
	Returns the input mask used to edit values in the field. More...

virtual IlShort	f_getMaxLength () const
	Returns the maximum length allowed for the external representation of the field. More...

const char *	f_getTablePropertyManagerName () const
	Returns the name of the table property manager used by this field. More...

IlInt	f_getVisibleRowsCount () const
	Returns the number of rows that will be displayed when the foreign table is displayed. More...

virtual IlBoolean	f_hasLabel () const
	Returns `IlTrue` if the field gadget can display a label. More...

virtual void	f_ignoreModifiedState (IlBoolean ignore)
	Sets the ignore modified state attribute of the field. More...

virtual IlBoolean	f_isAutoFitPullDown () const
	Returns `IlTrue` if the width of the pull-down menu is automatically computed so that its contents fit. More...

IlBoolean	f_isCompletionEnabled () const
	Returns `IlTrue` if completion is enabled. More...

IlBoolean	f_isConnectedToDataSource () const
	Returns `IlTrue` if the field is currently connected to a column of a data source. More...

IlBoolean	f_isConstrained () const
	Returns `IlTrue` if the foreign table limits the set of possible internal values for this field. More...

IlBoolean	f_isDataSourceOwner () const
	Returns `IlTrue` if the field owns the data source. More...

IlBoolean	f_isForeignTableOwner () const
	Returns `IlTrue` if the field owns its foreign table. More...

virtual IlBoolean	f_isInputModified () const
	Returns `IlTrue` if the external representation has been edited by the end-user. More...

virtual IlBoolean	f_isModifiedStateIgnored () const
	Returns `IlTrue` if the modified states are ignored when the `f_setValue()` function is called. More...

IlBoolean	f_isUsingTableProperties () const
	Returns `IlTrue` if the field uses table properties. More...

void	f_killFocus ()
	Should be called when the gadget loses the focus.

virtual void	f_selectTextForAppend ()
	Deselects all the text and positions the editing caret at the end of the text, provided the field gadget supports text selection.

virtual void	f_selectTextForOverwrite ()
	Selects all the text, provided the field gadget supports text selection.

virtual void	f_setAlignment (IlvAlignment align)
	Sets the text alignment of the field. More...

virtual void	f_setAutoFitPullDown (IlBoolean flag)
	Enables/disables the automatic width computing of the pull-down menu. More...

virtual void	f_setConstrained (IlBoolean flag)
	Sets the constrained property of the field. More...

virtual void	f_setDataSourceColumnName (const char *name)
	Sets the name of the column. More...

virtual void	f_setDataSourceName (const char *name)
	Sets the name of the data source. More...

void	f_setFocus ()
	Should be called when the gadget receives the focus.

virtual void	f_setForeignDataSourceName (const char *name)
	Sets the name of the foreign data source. More...

virtual void	f_setFormat (const IliFormat &fmt)
	Sets the format used to derive the external representation of the field from its internal value. More...

virtual void	f_setInputModified (IlBoolean flag)
	Sets the input-modified attribute of the field. More...

virtual void	f_setLabel (const char *label)
	Sets the label of the field gadget. More...

virtual void	f_setMask (const IliInputMask &msk)
	Sets the input mask. More...

virtual void	f_setMaxLength (IlShort vmax)
	Sets the maximum length allowed for the external representation of the field. More...

virtual void	f_setTablePropertyManagerName (const char *name)
	Sets the name of the table property manager to use. More...

virtual void	f_setVisibleRowsCount (IlInt count)
	Sets the number of rows to be displayed when the foreign table is displayed. More...

virtual IlBoolean	f_supportsTableProperties () const
	Returns `IlTrue` if this gadget supports table properties. More...

virtual void	f_useTableProperties (IlBoolean flag)
	Enables/Disables the use of the table properties. More...

Additional Inherited Members
Static Public Member Functions inherited from IliFieldItf
static IlvSymbol *	InputModifiedSymbol ()
	Returns the name of the callback that the field gadget will invoke every time the field input-modified property changes from `IlFalse` to `IlTrue`. More...

Protected Member Functions inherited from IliFieldItf
void	f_read (IlvInputFile &input)
	Should be called by the stream-based constructor of the gadget. More...

void	f_set (IlvGraphic *g, const IliFieldItf &other)
	Should be called by the copy constructor of the graphic class that is passed. More...

void	f_setGraphic (IlvGraphic *g)
	Should be called by all constructors of the graphic class (except the copy constructor). More...

void	f_subscribe ()
	Should be called after the `setHolder()` member function of the gadget class.

void	f_unsubscribe ()
	Should be called before the `setHolder()` member function of the gadget class. More...

void	f_write (IlvOutputFile &output) const
	Should be called by the `write()` member function of the gadget class. More...

Detailed Description

Field gadget class.

Library: dbgadget

The IliScrolledComboBox class defines a combo box gadget that opens a pull-down menu when the user clicks on the combo button. The pull-down menu displays a column of the foreign table of the field. A IliScrolledComboBox gadget inherits the following properties from the IliFieldItf class:

a value (that may be connected to a data source)
a foreign table
a column of the foreign table known as the value column
a column of the foreign table known as the display column

When a table combo box receives a new value, it looks in the foreign table for a row that has this value in what is referred to as its value column. If such a row is found, the table combo box displays the value contained in what is referred to as the display column of this row. Therefore, a table combo box does not display the new value, but a value which is derived from the initial value through the foreign table. The foreign table serves as a value converter. In addition, if the user edits the value displayed in the table combo box, the edited value is converted back in a reversed version of the procedure described above. A row that contains the newly edited value in its display column is searched for in the foreign table. If such a row is found, the value of the combo box changes to the value contained in the value column of the row. Under Windows, this gadget supports XP look&feel.

See also: IliMapTable, IliTable, IliTableComboBox.

Constructor & Destructor Documentation

§ IliScrolledComboBox() [1/2]

IliScrolledComboBox::IliScrolledComboBox	(	IlvDisplay *	display,
		const IlvPoint &	point,
		const char *	label,
		const char const	labels = `0`,
		IlUShort	count = `0`,
		IlUShort	thickness = `IlvDefaultGadgetThickness`,
		IlvPalette *	palette = `0`
	)

Constructor.

Initializes a new instance of the class IlvScrolledComboBox. The size of the combo box is computed from the label parameter. If you want to give the combo box a specific size, use the other constructor.

Parameters

display	The connection to the display.
point	The position of the combo box.
label	The label of the combo box.
labels	An array containing the predefined labels of the combo box.
count	The number of elements in the labels array.
thickness	The thickness of the combo box.
palette	The palette used by the combo box.

§ IliScrolledComboBox() [2/2]

IliScrolledComboBox::IliScrolledComboBox	(	IlvDisplay *	display,
		const IlvRect &	rect,
		const char *	label,
		const char const	labels = `0`,
		IlUShort	count = `0`,
		IlUShort	thickness = `IlvDefaultGadgetThickness`,
		IlvPalette *	palette = `0`
	)

Constructor.

Initializes a new instance of the IlvScrolledComboBox.

Parameters

display	The connection to the display.
rect	The size and position of the combo box.
label	The label of the combo box.
labels	An array containing the predefined labels of the combo box.
count	The number of elements in the labels array.
thickness	The thickness of the combo box.
palette	The palette used by the combo box.

Member Function Documentation

§ f_externalToInternal()

virtual IlBoolean IliScrolledComboBox::f_externalToInternal ( )

virtual

Updates the internal value of a field according to its current external representation.

Returns: IlTrue if successful and IlFalse otherwise. Note that this may fail due to the fact that not all external representations can be converted to a value object. For example, this is especially true for text fields that are used to edit numeric or date values.

Reimplemented from IliFieldItf.

§ f_getValue()

virtual const IliValue& IliScrolledComboBox::f_getValue ( IlBoolean internal = IlFalse ) const

virtual

Returns the value of the field.

Parameters

internal If IlTrue, the returned value does not necessarily reflect the state of the field as the user sees it.

Returns: The value.

Reimplemented from IliFieldItf.

§ f_isConsistent()

virtual IlBoolean IliScrolledComboBox::f_isConsistent ( ) const

virtual

Returns IlTrue if the internal value of the field corresponds to its current external representation.

A return value of IlFalse means that the external representation of the field has been edited by the end-user since the last time one of the member functions, f_setValue(), f_externalToInternal(), f_internalToExternal() or f_complete() was successfully called.

Returns: IlTrue if the internal value of the field corresponds to its current external representation.

Reimplemented from IliFieldItf.

§ f_isReadOnly()

virtual IlBoolean IliScrolledComboBox::f_isReadOnly ( ) const

virtual

Returns IlTrue if the field is read-only.

Returns: IlTrue if the field is read-only.

Reimplemented from IliFieldItf.

§ f_setForeignDisplayColumnName()

virtual void IliScrolledComboBox::f_setForeignDisplayColumnName ( const char * name )

virtual

Sets the name of the column of the foreign table that will serve as a result, when the table is used as a map to convert internal values into external representations.

Parameters

name	The column name.

Reimplemented from IliFieldItf.

§ f_setForeignTable()

virtual void IliScrolledComboBox::f_setForeignTable	(	IliTable *	tbl,
		IlBoolean	owner = `IlFalse`
	)

virtual

Sets the foreign table of the field.

Parameters

tbl	The table.
owner	Determines whether the field will own the table.

Reimplemented from IliFieldItf.

§ f_setForeignValueColumnName()

virtual void IliScrolledComboBox::f_setForeignValueColumnName ( const char * name )

virtual

Sets the name of the column of the foreign table that will serve as a key, when the table is used as a map to convert internal values into external representations.

Parameters

name	The column name.

Reimplemented from IliFieldItf.

§ f_setReadOnly()

virtual void IliScrolledComboBox::f_setReadOnly ( IlBoolean flag )

virtual

Sets the read-only property for the field.

Parameters

flag	The read-only flag.

Reimplemented from IliFieldItf.

§ f_setValue()

virtual IlBoolean IliScrolledComboBox::f_setValue	(	const IliValue &	val,
		IlBoolean	internal = `IlFalse`
	)

virtual

Sets the value of the field.

Parameters

val	The value.
internal	If `IlFalse`, then the external representation and the display of the field are automatically updated.

Returns: IlTrue if successful, and IlFalse otherwise.

Reimplemented from IliFieldItf.

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

§ IliScrolledComboBox() [1/2]

§ IliScrolledComboBox() [2/2]

Member Function Documentation

§ f_externalToInternal()

§ f_getValue()

§ f_isConsistent()

§ f_isReadOnly()

§ f_setForeignDisplayColumnName()

§ f_setForeignTable()

§ f_setForeignValueColumnName()

§ f_setReadOnly()

§ f_setValue()