MPxUITableControl Class Reference

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Detailed Description

Base class for creating new spreadsheet controls.

MPxUITableControl is the base class for creating new spreadsheet like interfaces. Every UI control has an associated command that is 'in-charge' of that control. Therefore, when creating a new table control, you will need to create an associated MPxControlCommand. Please refer to the MPxControlCommand documentation for details on how to use these class together.

At a minimum, when creating a new table control, you must overload getCell( ... ). Other methods available for overloading are getLabel(...), allowEdit( ... ), allowSelection( ... ), and collapseOrExpandRow( ... ).

#include <MPxUITableControl.h>

Inheritance diagram for MPxUITableControl:

List of all members.

Public Types
enum	MLabelType { kNoLabel, kRowLabel, kColumnLabel, kAllLabels }
	Types of labels available in the control. More...
Public Member Functions
	MPxUITableControl (MPxControlCommand &)
	Class constructor.
virtual	~MPxUITableControl ()
	Class destructor.
MStatus	redrawLabels (MLabelType lt=kAllLabels)
	Tells the table control to redraw the label entries.
MStatus	redrawCells ()
	Tells the UI control to redraw the cells of the table.
MStatus	addToSelection (unsigned int row, unsigned int col)
	Add the follow cell to the selection data structure.
MStatus	removeFromSelection (unsigned int row, unsigned int column)
	Removes the specified cell entry from the internal selection list.
MStatus	clearSelection ()
	Clears the selection table.
MStatus	setSelection (unsigned int row, unsigned int column)
	Sets the table selection list based on the row & column entry.
MStatus	setSelection (unsigned int firstRow, unsigned int lastRow, unsigned int firstCol, unsigned int lastCol)
	Sets the selection to be the range of cells specified.
MStatus	setNumberOfRows (unsigned int count)
	Specifies the number of rows for the table.
unsigned int	numberOfRows (MStatus *ReturnStatus=NULL)
	Returns the number of rows in the table.
MStatus	setNumberOfColumns (unsigned int count)
	Specifies the number of columns for the table.
unsigned int	numberOfColumns (MStatus *ReturnStatus=NULL) const
	Returns the number of columns in the table.
bool	suspendUpdates (bool update, MStatus *ReturnStatue=NULL)
	When set to true, it prevents the UI from updating the table.
bool	isSelected (unsigned int row, unsigned int col, MStatus *status=NULL)
	Returns true if the specified cell is selected.
virtual bool	collapseOrExpandRow (unsigned int row)
	This is called when a row should be collapsed or expanded (depending on its current state).
Static Public Member Functions
static const char *	className ()
	Returns the name of this class.
Protected Member Functions
virtual MString	cellString (unsigned int r, unsigned int c, bool &ValidCell)
	Returns the contents of a cell.
virtual MString	labelString (MLabelType labelType, unsigned int n)
	Returns the text of the label for the given row or column.
virtual bool	getCell (unsigned int r, unsigned int c, MString &value)
	NO SCRIPT SUPPORT.
virtual void	getLabel (MLabelType labelType, unsigned int n, MString &value)
	NO SCRIPT SUPPORT.
virtual bool	allowEdit () const
	Tells the base UI table control class if this control is editable.
virtual bool	allowSelection (int top, int left, int bottom, int right)
	This method is called when a selection occurs.
Friends
class	MPxControlCommand Search for all occurrences

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Member Enumeration Documentation

enum MLabelType

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Types of labels available in the control.

Enumerator:

kNoLabel	Search for all occurrences
kRowLabel	Search for all occurrences
kColumnLabel	Search for all occurrences
kAllLabels	Search for all occurrences

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Constructor & Destructor Documentation

MPxUITableControl

(

MPxControlCommand &

command

)

Class constructor.

You will always need to provide a constructor that takes a control command instance as an argument, and it is illegal to define your standard constructors.

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Member Function Documentation

MStatus redrawLabels

(

MPxUITableControl::MLabelType

labelType = kAllLabels

)

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Tells the table control to redraw the label entries.

Parameters:

[in]

labelType

Specifies which labels to redraw.

Returns:

• MS::kSuccess Call was successful.
• MS::kFailure Internal error.

MStatus redrawCells

(

)

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Tells the UI control to redraw the cells of the table.

The table control maintains a database of cell entries and it will populate these entries using getCell interface.

Returns:

• MS::kSuccess Call was successful.
• MS::kFailure Internal error.

MStatus addToSelection	(	unsigned int	row,
		unsigned int	col
	)

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Add the follow cell to the selection data structure.

To keep track of which entries that should be highlighted, an internal table is maintained.

Parameters:

[in]	row	table row entry.
[in]	col	table col entry.

Returns:

• MS::kSuccess successfully added the selection.
• MS::kFailure invalid row, col entry.

MStatus removeFromSelection	(	unsigned int	row,
		unsigned int	column
	)

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Removes the specified cell entry from the internal selection list.

Parameters:

[in]	row	cell row entry
[in]	column	cell column entry

Returns:

• MS::kFailure invalid row / col entry.
• MS::kSuccess successfully removed entry from selection list.

MStatus clearSelection

(

)

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Clears the selection table.

This will remove all highlighted cells from the table.

Returns:

• MS::kSuccess successfully removed entry from selection list.
• MS::kFailure Internal error.

MStatus setSelection	(	unsigned int	row,
		unsigned int	column
	)

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Sets the table selection list based on the row & column entry.

This replaces the current selection list with the new entry.

Parameters:

[in]	row	cell row entry
[in]	column	cell column entry

Returns:

• MS::kSuccess Successfully removed entry from selection list.
• MS::kFailure Invalid row / col entry.

MStatus setSelection	(	unsigned int	firstRow,
		unsigned int	lastRow,
		unsigned int	firstCol,
		unsigned int	lastCol
	)

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Sets the selection to be the range of cells specified.

This replaces the current selection with the specified selection range.

Parameters:

[in]	firstRow	first row of the selection
[in]	lastRow	last row of the selection
[in]	firstCol	first column of the selection
[in]	lastCol	last column of the selection

Returns:

• MS::kSuccess Successfully edited the selection list.
• MS::kFailure Invalid range.

MStatus setNumberOfRows

(

unsigned int

count

)

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Specifies the number of rows for the table.

Parameters:

[in]

count

number of rows desired.

Returns:

• MS::kSuccess Successfully changed the number of rows.
• MS::kFailure Internal error.

unsigned int numberOfRows

(

MStatus *

ReturnStatus = NULL

)

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Returns the number of rows in the table.

Parameters:

[out]

ReturnStatus

Status of the call.

Returns:

Number of rows in the table or zero on failure.

Status Codes:

• MS::kSuccess Successfully returned the number of rows..
• MS::kFailure Internal error.

MStatus setNumberOfColumns

(

unsigned int

count

)

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Specifies the number of columns for the table.

Parameters:

[in]

count

number of columns desired.

Returns:

• MS::kSuccess Successfully changed the number of columns.
• MS::kFailure Internal error.

unsigned int numberOfColumns

(

MStatus *

ReturnStatus = NULL

)

const

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Returns the number of columns in the table.

Parameters:

[out]

ReturnStatus

status of the call.

Returns:

• MS::kSuccess Successfully returned the number of rows.
• MS::kFailure Internal error.

bool suspendUpdates	(	bool	update,
		MStatus *	ReturnStatus = NULL
	)

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When set to true, it prevents the UI from updating the table.

The old suspend status is returned.

Parameters:

[in]	update	state the new suspend status.
[out]	ReturnStatus	status of the call.

Returns:

• MS::kSuccess Suspend status updated.
• MS::kFailure Internal error.

bool isSelected	(	unsigned int	row,
		unsigned int	col,
		MStatus *	ReturnStatus = NULL
	)

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Returns true if the specified cell is selected.

Parameters:

[in]	row	cell row position.
[in]	col	cell col position.
[out]	ReturnStatus	Status code.

Returns:

• MS::kSuccess Successfully returned the selected state.
• MS::kFailure Internal error.

bool collapseOrExpandRow

(

unsigned int

row

)

[virtual]

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This is called when a row should be collapsed or expanded (depending on its current state).

Parameters:

[in]

row

the row to collapse.

Returns:

• true the action was handled.
• false the action was not handled.

const char * className

(

)

[static]

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Returns the name of this class.

Returns:

Name of this class.

Reimplemented from MPxUIControl.

MString cellString	(	unsigned int	r,
		unsigned int	c,
		bool &	isValidCell
	)		[protected, virtual]

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Returns the contents of a cell.

Derived classes MUST override either this method or getCell().

Parameters:

[in]	r	Row index of the cell.
[in]	c	Column index of the cell.
[out]	isValidCell	True if the row and column specify a valid cell, false otherwise.

Returns:

Contents of the specified cell, as a string, or an empty string if an invalid cell was specified.

MString labelString	(	MLabelType	labelType,
		unsigned int	n
	)		[protected, virtual]

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Returns the text of the label for the given row or column.

The base implementation of the method always returns an empty string.

Parameters:

[in]	labelType	Specifies whether a row or column label is requested.
[in]	n	Row or column index.

Returns:

Text of the requested label or an empty string if 'index' is invalid.

bool getCell	(	unsigned int	row,
		unsigned int	column,
		MString &	value
	)		[protected, virtual]

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NO SCRIPT SUPPORT.

Returns the contents of a cell.

Derived classes MUST override either this method or cellString().

Python Notes

This method is not supported in Python. Use cellString() instead.

Parameters:

[in]	row	Row index of cell.
[in]	column	Column index of cell.
[out]	value	Contents of the specified cell, as a string, or an empty string if an invalid cell was specified.

Returns:

True state if 'row' and 'column' specify a valid cell, false otherwise.

void getLabel	(	MLabelType	labelType,
		unsigned int	n,
		MString &	value
	)		[protected, virtual]

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NO SCRIPT SUPPORT.

Returns the text of the label for the given row or column.

The base implementation of the method always returns an empty string.

Python Notes

This method is not supported in Python. Use labelString() instead.

Parameters:

[in]	labelType	Specifies whether a row or column label is requested.
[in]	n	Row or column index.
[out]	value	Text of the requested label or an empty string if 'index' is invalid.

bool allowEdit

(

)

const [protected, virtual]

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Tells the base UI table control class if this control is editable.

It is possible to implement tables that simple display information and do not allow the user to edit them.

Returns:

• true the table can be edited.
• false the table should not be edited.

bool allowSelection	(	int	top,
		int	left,
		int	bottom,
		int	right
	)		[protected, virtual]

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This method is called when a selection occurs.

In this base implementation it always returns true. However, this method can be overridden to allow or disallow a selection.

Parameters:

[in]	top	top cell coordinate
[in]	left	left cell coordinate
[in]	bottom	bottom cell coordinate
[in]	right	right cell coordinate

Returns:

• true the table can be edited.
• false the table should not be edited.