Item holder class. More...

#include <ilviews/gadgets/itemgdt.h>

Inheritance diagram for IlvListGadgetItemHolder:

Public Member Functions
virtual void	addLabel (const char *label, IlAny data=0)
	Adds an item with a label to the holder list. More...

virtual IlvGadgetItem *	applyToItems (IlvApplyGadgetItem, IlAny)
	Applies the specified function to all the items of the holder. More...

virtual int	compareItems (const char string1, const char string2, IlAny value1, IlAny value2)
	Compares a pair of items. More...

virtual void	deSelectAll ()
	Deselects all the items. More...

virtual void	empty ()=0
	Empties the list. More...

IlUShort	getCardinal () const
	Returns the number of items stored in this holder. More...

IlShort	getFirstSelectedItem () const
	Returns the index of the first selected item. More...

IlShort	getIndex (const IlvGadgetItem *item, IlUShort start=0, IlUShort stop=(IlUShort)-1) const
	Returns the index of the specified item in the holder list. More...

IlvGadgetItem *	getItem (IlUShort index) const
	Returns an item from its position in the holder. More...

IlAny	getItemData (IlUShort index) const
	Returns an item user data. More...

IlvGadgetItem const	getItems (IlUShort &count) const
	Returns the array of all the items. More...

const char *	getLabel (IlUShort index) const
	Returns the indicated label of the list. More...

const char const	getLabels (IlUShort &count) const
	Returns an array of all the items labels. More...

IlShort	getPosition (const char *label, IlUShort start=0) const
	Returns the position of an item using its label. More...

virtual const char *	getSelection () const
	Returns the first selected item label. More...

IlUShort const *	getSelectionIndices (IlUShort &count) const
	Returns an array containing the indexes of the selected item. More...

const char const	getSelections (IlUShort &count) const
	Returns an array of the selected items. More...

IlAny const *	getUserDataArray (IlUShort &count) const
	Returns an array of all the user data for the items. More...

IlUShort	insertBitmap (IlvBitmap *bitmap, IlShort pos=-1)
	Inserts an item with a bitmap at the given position in the holder list. More...

IlUShort	insertGraphic (IlvGraphic *graphic, IlShort pos=-1)
	Inserts an item with a graphic as picture at a given position in the holder list. More...

IlUShort	insertItem (IlvGadgetItem *item, IlShort index=-1)
	Inserts an item at a given position in the holder's list. More...

virtual void	insertLabel (IlUShort pos, const char *label, IlAny data=0)
	Inserts an item with a label at a given position in the holder list. More...

IlBoolean	isSelected (IlUShort index) const
	Specifies whether the item whose position is specified is selected. More...

void	removeItem (IlUShort index, IlBoolean destroy=IlTrue)
	Removes an item from the holder. More...

void	removeLabel (IlUShort index)
	Removes and destroys an item. More...

void	setItemData (IlUShort index, IlAny itemData)
	Sets an item user data. More...

virtual void	setItems (IlvGadgetItem const items, IlUShort count)
	Replaces the entire list of items. More...

void	setLabel (IlUShort index, const char *label, IlBoolean copy)
	Modifies the label of an item. More...

virtual void	setLabels (const char const labels, IlAny const *itemData, IlUShort count, IlBoolean copy=IlTrue)
	Replaces the entire list of items. More...

virtual void	setLabels (const char const labels, IlUShort count, IlBoolean copy=IlTrue)
	Replaces the entire list of items. More...

virtual void	sort (IlvListCompareFunction func=0)
	Sorts the items. More...

Public Member Functions inherited from IlvGadgetItemHolder
virtual IlvGadgetItem *	createItem (const char label, IlvGraphic graphic=0, IlvBitmap bitmap=0, IlvBitmap selbitmap=0, IlBoolean copy=IlTrue) const
	Returns a new gadget item. More...

virtual void	drawGadgetItem (const IlvGadgetItem item, IlvPort port, const IlvRect &rect, const IlvTransformer t=0, const IlvRegion clip=0) const
	Draws a specific gadget item. More...

IlvGadgetItem *	getCallbackItem () const
	Returns the item that triggered a callback. More...

IlvGadgetItem *	getDragDropTarget () const
	Returns the target item of a drag-and-drop operation. More...

IlvGraphic *	getDraggedImage () const
	Returns the graphic object used to draw the ghost image during a drag-and-drop operation. More...

IlvGadgetItem *	getDraggedItem () const
	Returns the item that is being dragged during a drag-and-drop operation. More...

IlvGadgetItem *	getEditedItem () const
	Returns the item that is being edited. More...

virtual IlvPalette *	getHighlightTextPalette () const
	Returns the highlight palette used to draw the label of highlighted items. More...

virtual IlvPalette *	getInsensitivePalette () const =0
	Returns the palette used to draw an item that is not sensitive. More...

virtual IlvGadgetItem *	getItemByName (const char *name) const
	Returns the item whose name is specified. More...

virtual IlvPalette *	getNormalTextPalette () const =0
	Returns the default palette used to draw an item. More...

virtual IlvPalette *	getOpaquePalette () const
	Returns the opaque palette used to draw opaque items. More...

virtual IlvPalette *	getSelectionPalette () const =0
	Returns the selection palette used to draw selected items. More...

virtual IlvPalette *	getSelectionTextPalette () const =0
	Returns the selection palette used to draw the label of selected items. More...

IlvGadgetItem *	getToolTipItem () const
	Returns the item that is displaying a tooltip. More...

virtual void	initReDrawItems ()
	Begins a redraw session. More...

virtual void	recomputeAllItems ()
	Recomputes the size of all the items managed by the holder. More...

virtual void	reDrawItems ()
	Ends a redraw session. More...

void	setDragDropTarget (IlvGadgetItem *item)
	Sets the target item of a drag-and-drop operation. More...

void	setDraggedImage (IlvGraphic *graphic)
	Sets the graphic object used to draw the ghost image during a drag-and-drop operation. More...

void	setDraggedItem (IlvGadgetItem *item)
	Sets the dragged item. More...

Additional Inherited Members
Static Public Member Functions inherited from IlvGadgetItemHolder
static IlSymbol *	AbortDragItemCallbackType ()
	Returns the callback type of the Abort Drag callback. More...

static IlSymbol *	AbortEditItemCallbackType ()
	Returns the callback type of the Abort Edit callback. More...

static IlSymbol *	ActivateCallbackType ()
	Returns the callback type of the Activate callback. More...

static IlSymbol *	DragItemCallbackType ()
	Returns the callback type of the Drag Item callback. More...

static IlSymbol *	EndDragItemCallbackType ()
	Returns the callback type of the End Drag callback. More...

static IlSymbol *	EndEditItemCallbackType ()
	Returns the callback type of the End Edit callback. More...

static IlSymbol *	StartDragItemCallbackType ()
	Returns the callback type of the Start Drag callback. More...

static IlSymbol *	StartEditItemCallbackType ()
	Returns the callback type of the Start Edit callback. More...

Protected Member Functions inherited from IlvGadgetItemHolder
virtual void	abortDragItem ()
	Is called when a drag-and-drop operation is aborted. More...

virtual void	abortEdit (IlvGadgetItem *item)
	Is called when the editing of the specified item is aborted. More...

virtual void	drawDraggedImage (const IlvPoint &point, const IlvTransformer *t)
	Is called to draw the ghost image during a drag-and-drop operation. More...

virtual void	endDragItem (const IlvPoint &point)
	Is called when a drag-and-drop operation is finished. More...

virtual void	endEdit (IlvGadgetItem *item)
	Is called after an item has been edited. More...

virtual void	itemActivated (IlvGadgetItem *item)
	Is called when an item is activated. More...

virtual void	itemDeSelected (IlvGadgetItem *item)
	Is called when an item is deselected. More...

virtual void	itemDragged (const IlvPoint &point)
	Is called each time the user moves the mouse during a drag-and-drop operation. More...

virtual void	itemHighlighted (IlvGadgetItem *item)
	Is called when an item is highlighted or unhighlighted. More...

virtual void	itemSelected (IlvGadgetItem *item)
	Is called when an item is selected. More...

virtual void	startDragItem (IlvGadgetItem *item)
	Is called when a drag-and-drop operation begins. More...

virtual void	startEdit (IlvGadgetItem *item)
	Is called when an item is edited. More...

Detailed Description

Item holder class.

Library: ilvgadgt

IlvListGadgetItemHolder is a specific IlvGadgetItemHolder class that manages a list of items.

See Also: IlvAbstractMenu, IlvGadgetItem, IlvStringList, IlvComboBox, IlvOptionMenu.

Member Function Documentation

virtual void IlvListGadgetItemHolder::addLabel	(	const char *	label,
		IlAny	data = `0`
	)

virtual

Adds an item with a label to the holder list.

The item is created by calling the member function IlvGadgetItemHolder::createItem().

Parameters

label	The item label. The string is copied internally.
data	The item client data.

See Also: insertItem(), insertLabel(), insertItem(), insertGraphic(), insertBitmap(), setItems().

virtual IlvGadgetItem* IlvListGadgetItemHolder::applyToItems	(	IlvApplyGadgetItem	func,
		IlAny	arg
	)

virtual

Applies the specified function to all the items of the holder.

Parameters

func	The function to be applied.
arg	The argument that will be passed to the function func.

Returns: The item that stopped the operation.

See Also: IlvApplyGadgetItem, recomputeAllItems(), getItemByName().

Reimplemented from IlvGadgetItemHolder.

virtual int IlvListGadgetItemHolder::compareItems	(	const char *	string1,
		const char *	string2,
		IlAny	value1,
		IlAny	value2
	)

virtual

Compares a pair of items.

If no sorting function is provided, this method is called to compare each item pair. This function simply returns the result of strcmp() on the two item labels.

Parameters

string1	The label of the first item.
string2	The label of the second item.
value1	The client data of the first item.
value2	The client data of the second item.

See Also: sort().

virtual void IlvListGadgetItemHolder::deSelectAll ( )

virtual

Deselects all the items.

See Also: IlvGadgetItem::deSelect().

Reimplemented in IlvAbstractMenu.

virtual void IlvListGadgetItemHolder::empty ( )

pure virtual

Empties the list.

See Also: setItems(), removeItem().

Implemented in IlvAbstractMenu, IlvPopupMenu, IlvStringList, IlvToolBar, IlvComboBox, and IlvOptionMenu.

IlUShort IlvListGadgetItemHolder::getCardinal ( ) const

Returns the number of items stored in this holder.

Returns: The number of items stored in this holder.

See Also: insertItem(), removeItem(), setItems().

IlShort IlvListGadgetItemHolder::getFirstSelectedItem ( ) const

Returns the index of the first selected item.

Returns: The index of the first selected item. Returns -1 if no item is selected.

See Also: isSelected(), IlvGadgetItem::isSelected().

IlShort IlvListGadgetItemHolder::getIndex	(	const IlvGadgetItem *	item,
		IlUShort	start = `0`,
		IlUShort	stop = `(IlUShort)-1`
	)		const

Returns the index of the specified item in the holder list.

Returns: The index of item beginning the search from start. It returns -1 if the item is not in the holder list.

Parameters

item	The item to be retrieved.
start	The index where to begin the search.
stop	The index where to stop the search. The search doesn't includes the item of index stop.

See Also: getItem().

IlvGadgetItem* IlvListGadgetItemHolder::getItem ( IlUShort index ) const

Returns an item from its position in the holder.

Parameters

index The item position.

Returns: The index^th item. Returns 0 if index is not valid.

See Also: getIndex().

IlAny IlvListGadgetItemHolder::getItemData ( IlUShort index ) const

Returns an item user data.

Parameters

index The item index.

Returns: The index ^th item user data or 0 if there is none.

See Also: setItemData(), IlvGadgetItem::setClientData().

IlvGadgetItem* const* IlvListGadgetItemHolder::getItems ( IlUShort & count ) const

Returns the array of all the items.

Parameters

count The number of items in the returned array.

Returns: The array of all the items.

Note: The returned array should never be modified or deleted.

See Also: setItems(), getItem(), getIndex().

const char* IlvListGadgetItemHolder::getLabel ( IlUShort index ) const

Returns the indicated label of the list.

Parameters

index The item index.

Returns: The index ^th label of the list. The returned string should not be modified or deleted. If index is not in the holder range, 0 is returned.

const char* const* IlvListGadgetItemHolder::getLabels ( IlUShort & count ) const

Returns an array of all the items labels.

Parameters

count The number of elements of the returned array.

Returns: An array of count strings that includes all the items stored in the object.

Note: The returned array is a static array, managed internally. Other Rogue Wave Views routines may overwrite this buffer so it should be copied in a safe place if it needs to be persistent.

See Also: setLabels(), setItems().

IlShort IlvListGadgetItemHolder::getPosition	(	const char *	label,
		IlUShort	start = `0`
	)		const

Returns the position of an item using its label.

Parameters

label	The label of the searched item.
start	The index where to begin the search.

Returns: The position of the item with the label label, beginning the search from start. Returns -1 if the label cannot be found.

See Also: getIndex(), IlvListGadgetItemHolder::getItemByName().

virtual const char* IlvListGadgetItemHolder::getSelection ( ) const

virtual

Returns the first selected item label.

Returns: The first selected item label. The returned string should never be modified or deleted.

See Also: getSelections(), getSelectionIndices(), isSelected().

Reimplemented in IlvComboBox.

IlUShort const* IlvListGadgetItemHolder::getSelectionIndices ( IlUShort & count ) const

Returns an array containing the indexes of the selected item.

Parameters

count The number of elements in the returned array.

Returns: An array of count values that holds the indexes of a selected item. The total number of selected items (and therefore, of valid values in the returned array) is returned in the count parameter.

Note: The returned array is a static array, managed internally. Other Rogue Wave Views routines may overwrite this buffer so it should be copied in a safe place if it needs to be persistent.

See Also: getSelections(), getFirstSelectedItem(), isSelected().

const char* const* IlvListGadgetItemHolder::getSelections ( IlUShort & count ) const

Returns an array of the selected items.

Parameters

count The number of elements in the returned array.

Returns: An array of count strings that includes all the selected items.

Note: The returned array is a static array, managed internally. Other Rogue Wave Views routines may overwrite this buffer so it should be copied in a safe place if it needs to be persistent.

See Also: getSelectionIndices(), getFirstSelectedItem(), isSelected().

IlAny const* IlvListGadgetItemHolder::getUserDataArray ( IlUShort & count ) const

Returns an array of all the user data for the items.

Parameters

count The number of elements in the returned array.

Returns: An array of all the user data for the items. On return, the count parameter is set to the total number of items in the list. If user data has never been set to an item, the return value is 0. The user must not modify or delete the returned array.

See Also: setItemData(), getItemData().

IlUShort IlvListGadgetItemHolder::insertBitmap	(	IlvBitmap *	bitmap,
		IlShort	pos = `-1`
	)

Inserts an item with a bitmap at the given position in the holder list.

The specified bitmap is locked. The item is created by calling the member function IlvGadgetItemHolder::createItem().

Parameters

bitmap	The item picture.
pos	The item position. If pos is `-1`, the item is appended to the holder list.

Returns: The real index where the item was inserted.

See Also: insertItem(), insertGraphic(), insertLabel(), setItems().

IlUShort IlvListGadgetItemHolder::insertGraphic	(	IlvGraphic *	graphic,
		IlShort	pos = `-1`
	)

Inserts an item with a graphic as picture at a given position in the holder list.

The item is created by calling the member function IlvGadgetItemHolder::createItem().

Parameters

graphic	The item picture.
pos	The item position. If pos is `-1`, the item is appended to the holder list.

Returns: The real index where the item was inserted.

See Also: insertItem(), insertBitmap(), insertLabel(), setItems().

IlUShort IlvListGadgetItemHolder::insertItem	(	IlvGadgetItem *	item,
		IlShort	index = `-1`
	)

Inserts an item at a given position in the holder's list.

Parameters

item	The item.
index	The item position. If index is `-1`, the item is appended to the holder list.

See Also: insertBitmap(), insertGraphic(), InsertLabel(), setItems().

virtual void IlvListGadgetItemHolder::insertLabel	(	IlUShort	pos,
		const char *	label,
		IlAny	data = `0`
	)

virtual

Inserts an item with a label at a given position in the holder list.

The item is created by calling the member function IlvGadgetItemHolder::createItem().

Parameters

pos	The item's position.
label	The item label.
data	The item client data.

See Also: addLabel(), insertItem(), insertGraphic(), insertBitmap(), setItems().

IlBoolean IlvListGadgetItemHolder::isSelected ( IlUShort index ) const

Specifies whether the item whose position is specified is selected.

Parameters

index The item index.

Returns: IlTrue if index^th item is selected.

See Also: IlvGadgetItem::isSelected().

void IlvListGadgetItemHolder::removeItem	(	IlUShort	index,
		IlBoolean	destroy = `IlTrue`
	)

Removes an item from the holder.

Parameters

index	The item position.
destroy	A Boolean value specifying whether the item should be destroyed.

See Also: insertItem().

void IlvListGadgetItemHolder::removeLabel ( IlUShort index )

Removes and destroys an item.

Parameters

index The item position.

See Also: removeItem(), insertItem().

void IlvListGadgetItemHolder::setItemData	(	IlUShort	index,
		IlAny	itemData
	)

Sets an item user data.

Parameters

index	The item index.
itemData	The item data.

See Also: getItemData(), IlvGadgetItem::getClientData().

virtual void IlvListGadgetItemHolder::setItems	(	IlvGadgetItem const	items,
		IlUShort	count
	)

virtual

Replaces the entire list of items.

Sets the items of the holder to items, which must be an array of count IlvGadgetItem objects. Items are not copied, but the deletion of the array items is the responsibility of the caller.

Parameters

items	The new items.
count	The number of items in items.

See Also: getItems(), insertItem(), removeItem().

Reimplemented in IlvAbstractMenu, IlvStringList, and IlvComboBox.

void IlvListGadgetItemHolder::setLabel	(	IlUShort	index,
		const char *	label,
		IlBoolean	copy
	)

Modifies the label of an item.

Parameters

index	The item index.
label	The new item label.
copy	Specifies whether the label should be copied. If the value is `IlTrue` then the string is copied. In any case the internal string will be deleted when this `IlvGadgetItem` is destroyed.

See Also: getLabel().

virtual void IlvListGadgetItemHolder::setLabels	(	const char const	labels,
		IlAny const *	itemData,
		IlUShort	count,
		IlBoolean	copy = `IlTrue`
	)

virtual

Replaces the entire list of items.

Replaces the entire internal list of items to match the count labels provided in the parameter labels. Each item created is associated with its data read from the itemData array.

Parameters

labels	The new items labels.
itemData	The data associated with the items.
count	The number of elements in the labels and itemData arrays.
copy	Specifies whether the label should be copied. If the value is `IlTrue` then the string is copied. In any case the internal string will be deleted when this `IlvGadgetItem` is destroyed.

See Also: getLabels(), setItems().

virtual void IlvListGadgetItemHolder::setLabels	(	const char const	labels,
		IlUShort	count,
		IlBoolean	copy = `IlTrue`
	)

virtual

Replaces the entire list of items.

Replaces the entire internal list of items to match the count labels provided in the parameter labels.

Parameters

labels	The new items labels.
count	The number of elements in the labels.
copy	Specifies whether the label should be copied. If the value is `IlTrue` then the string is copied. In any case the internal string will be deleted when this `IlvGadgetItem` is destroyed.

See Also: getLabels(), setItems().

virtual void IlvListGadgetItemHolder::sort ( IlvListCompareFunction func = 0 )

virtual

Sorts the items.

Runs the sorting algorithm on all the items. If you provide a sorting function in the form of an IlvListCompareFunction, this function is called to compare each item pair. If you do not provide a sorting function, a default comparison function is used.

Parameters

func	A sorting function.

See Also: IlvListCompareFunction, compareItems().

Reimplemented in IlvStringList.

Rogue Wave ViewsGadgets Package API Reference Guide

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

Rogue Wave Views
Gadgets Package API Reference Guide