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Data Access Package API Reference Guide

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IliScrolledComboBox Class Reference

Field gadget class. More...

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

Inheritance diagram for IliScrolledComboBox:
IlvScrolledComboBox IliFieldItf IlvComboBox IlvTextField IlvListGadgetItemHolder IlvGadget IlvGadgetItemHolder IlvSimpleGraphic IlvStylable IlvGraphic

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 IliValuef_getValue (IlBoolean internalP=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 owner=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 internalP=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 IliDataSourcef_getDataSource () const
 Returns the data source. More...
 
IliDataSourcef_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 IliTablePropertyManagerf_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 IliTablef_getForeignTable () const
 Returns the foreign table. More...
 
IliTablef_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 IliFormatf_getFormat () const
 Returns the format used to derive the external representation of the field from its internal value. More...
 
const IlvGadgetf_getGadget () const
 Returns the constant gadget associated with this field through multiple inheritance. More...
 
IlvGadgetf_getGadget ()
 Returns the gadget associated with this field through multiple inheritance. More...
 
const IlvGraphicf_getGraphic () const
 Returns the constant graphic associated with this field through multiple inheritance. More...
 
IlvGraphicf_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 IliInputMaskf_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 IlvSymbolInputModifiedSymbol ()
 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:

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::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
displayThe connection to the display.
pointThe position of the combo box.
labelThe label of the combo box.
labelsAn array containing the predefined labels of the combo box.
countThe number of elements in the labels array.
thicknessThe thickness of the combo box.
paletteThe palette used by the combo box.
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
displayThe connection to the display.
rectThe size and position of the combo box.
labelThe label of the combo box.
labelsAn array containing the predefined labels of the combo box.
countThe number of elements in the labels array.
thicknessThe thickness of the combo box.
paletteThe palette used by the combo box.

Member Function Documentation

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.

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

Returns the value of the field.

Parameters
internalIf IlTrue, the returned value does not necessarily reflect the state of the field as the user sees it.
Returns
The value.

Reimplemented from IliFieldItf.

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.

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.

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
nameThe column name.

Reimplemented from IliFieldItf.

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

Sets the foreign table of the field.

Parameters
tblThe table.
ownerDetermines whether the field will own the table.

Reimplemented from IliFieldItf.

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
nameThe column name.

Reimplemented from IliFieldItf.

virtual void IliScrolledComboBox::f_setReadOnly ( IlBoolean  flag)
virtual

Sets the read-only property for the field.

Parameters
flagThe read-only flag.

Reimplemented from IliFieldItf.

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

Sets the value of the field.

Parameters
valThe value.
internalIf IlFalse, then the external representation and the display of the field are automatically updated.
Returns
IlTrue if successful, and IlFalse otherwise.

Reimplemented from IliFieldItf.


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