Detailed Description

This object represents a 2-dimensional array of data. The word Grid refers to the visual presentation of 2-Dimensional data on a grid control (sometimes called a table or spreadsheet control). The word Cell refers to a single element of the array.

The dimensions of the array can be dynamically resized and many types of data can be stored as Cell data. The Columns and Rows can be labeled and it is possible to refer to the data by these label strings rather than by indices.

Each cell in the GridData is a CValue object, so strings, integers, doubles and many other types of data can be stored in the GridData. However not all data types may be properly displayed in the associated User Interface. Also, although it is possible to store object references (as CRef objects) inside a GridData, these cannot be persisted so it is better to store the SIObject::GetFullName as the cell value.

There are three main uses for the GridData object:

Data for a ::siGridControl on a custom object (see CustomProperty::AddGridParameter): In this case the user can view and edit the data and the data is saved inside the scene along with the CustomProperty. This can be an effective way to store lists, vectors or even arrays of vectors related to a plug-in. Some aspects of the visual representation of the GridData object are set directly on the GridData object (for example GridData::PutColumnType) but most attributes are set inside the PPGLayout using PPGItem::PutAttribute. ::siPPGItemAttributes that apply to the ::siGridControl include ::siUIGridColumnWidths and ::siUIGridHideRowHeader.

Store hidden data that is intended for internal use by a plug-in: In this case it is still part of a CustomProperty but it is not exposed to the user, which is easily done by not including the GridData Parameter in the PPGLayout.

Temporary convenience object for dealing with 2-dimensional arrays: This is most useful for scripting languages like JScript which do not support 2-dimensional arrays, but also may be interesting in some cases for C++ developers. For example, because it employs range checking, it is more robust and safe to use when compared with raw pointer-based C++ arrays.

See also:: PPGLayout, CustomProperty, PPG

Since:: 4.0

Example:: Demonstrates how to use a GridData object to display data on a custom object.

        using namespace XSI;
        Application app ;
        Model root = app.GetActiveSceneRoot(); ;

        CustomProperty prop ;
        root.AddProperty( L"CustomProperty", false, L"GridDataDemo", prop) ;

        // Put two grids on this Custom Property
        Parameter grid1param = prop.AddGridParameter( L"grid1" ) ;
        Parameter grid2param = prop.AddGridParameter( L"grid2" ) ;

        // Unlike basic parameters that have strings, ints or
        // floats as their values, for a Grid parameter the
        // value is an entire GridData object
        GridData grid1 = grid1param.GetValue() ;
        GridData grid2 = grid2param.GetValue() ;

        //
        // The first grid is a typical array of vectors
        //
        grid1.PutColumnCount( 3 ) ;
        grid1.PutRowCount( 4 ) ;

        grid1.PutColumnLabel( 0, L"X" ) ;
        grid1.PutColumnLabel( 1, L"Y" ) ;
        grid1.PutColumnLabel( 2, L"Z" ) ;

        // Fill in some data
        CValueArray gridcontents( grid1.GetRowCount() *
                                  grid1.GetColumnCount() ) ;
        gridcontents[0] = 0.0; gridcontents[1]  = 0.5; gridcontents[2]  = 0.2;
        gridcontents[3] = 0.1; gridcontents[4]  = 1.0; gridcontents[5]  = 0.0;
        gridcontents[6] = 1.0; gridcontents[7]  = 1.0; gridcontents[8]  = 9.0;
        gridcontents[9] = 0.3; gridcontents[10] = 0.4; gridcontents[11] = 0.5;
        grid1.PutData(gridcontents) ;

        // Change our mind about the value of the cell at Column 0,
        // row 3
        grid1.PutCell( 0, 3, 99.9 ) ;

        //
        // Setup the second GridData
        // It only has 1 column so it is more like a list than
        // a 2-Dimensional array
        //

        grid2.PutColumnCount( 1 ) ;
        grid2.PutRowCount( 12 ) ;
        grid2.PutColumnLabel( 0, L"Column 0" ) ;
        grid2.PutColumnType( 0, siColumnCombo ) ;

        CValueArray enumInfo( 4 ) ;
        enumInfo[0] = L"Option value 0" ;
        enumInfo[1] = 0l ;
        enumInfo[2] = L"Option value 10" ;
        enumInfo[3] = 10l ;
        grid2.PutColumnComboItems( 0, enumInfo ) ;

        LONG i;
        for ( i = 0 ; i < grid2.GetRowCount() ; i++ )
        {
            grid2.PutRowLabel( i, L"Row " + CValue( i ).GetAsText() ) ;
        }

        //
        // Populate it with some data
        //

        CValueArray items( grid2.GetRowCount() ) ;

        // First two items will use the first item in the combo box
        items[0] = 0l ;
        items[1] = 0l ;

        // rest of the items will select the second option
        for ( i = 2 ; i < items.GetCount() ; i++ )
        {
            items[i] = 10l ;
        }

        grid2.PutColumnValues( L"Column 0", items ) ;


        //
        // Set up some Layout to fine-tune the
        // appearance of the grids
        //

        PPGLayout layout = prop.GetPPGLayout() ;

        PPGItem item = layout.AddItem( L"grid1", NULL, siControlGrid ) ;
        item.PutAttribute( siUIValueOnly, true ) ;

        // We didn't label the rows, so we can hide that column
        item.PutAttribute( siUIGridHideRowHeader, true ) ;



        item = layout.AddItem( L"grid2", NULL, siControlGrid ) ;

        // Specify the width for the row label column and
        // then the data column
        item.PutAttribute( siUIGridColumnWidths, L"100:140" ) ;
        item.PutAttribute( siUIValueOnly, true ) ;

        // Specify a specific height.  This forces the use of
        // a scroll bar
        item.PutAttribute( siUICY, 200l ) ;

        // Make sure that the Column header doesn't get scrolled out
        // of view
        item.PutAttribute( siUIGridLockColumnHeader, true ) ;

#include <xsi_griddata.h>

Inheritance diagram for GridData:

[legend]

List of all members.

Public Member Functions
	GridData ()
	~GridData ()
	GridData (const CRef &in_ref)
	GridData (const GridData &in_obj)
bool	IsA (siClassID in_ClassID) const
siClassID	GetClassID () const
GridData &	operator= (const GridData &in_obj)
GridData &	operator= (const CRef &in_ref)
CValueArray	GetData () const
CStatus	PutData (const CValueArray &in_items)
CStatus	PutColumnCount (LONG in_val)
LONG	GetColumnCount () const
CStatus	PutRowCount (LONG in_val)
LONG	GetRowCount () const
CStatus	PutCell (LONG in_Column, LONG in_Row, const CValue &in_CellValue)
CStatus	PutCell (const CString &in_ColumnLabel, const CString &in_RowLabel, const CValue &in_CellValue)
CValue	GetCell (LONG in_Column, LONG in_Row) const
CValue	GetCell (const CString &in_ColumnLabel, const CString &in_RowLabel) const
CStatus	PutColumnValues (LONG in_Column, const CValueArray &in_ColumnItems)
CStatus	PutColumnValues (const CString &in_ColumnLabel, const CValueArray &in_ColumnItems)
CValueArray	GetColumnValues (LONG in_Column) const
CValueArray	GetColumnValues (const CString &in_ColumnLabel) const
CStatus	PutRowValues (LONG in_Row, const CValueArray &in_RowItems)
CStatus	PutRowValues (const CString &in_RowLabel, const CValueArray &in_RowItems)
CValueArray	GetRowValues (LONG in_Row) const
CValueArray	GetRowValues (const CString &in_RowLabel) const
CStatus	PutRowLabel (LONG in_RowIndex, const CString &in_RowLabel)
CString	GetRowLabel (LONG in_RowIndex) const
CStatus	PutColumnLabel (LONG in_ColumnIndex, const CString &in_ColumnLabel)
CString	GetColumnLabel (LONG in_ColumnIndex) const
CStatus	BeginEdit ()
CStatus	EndEdit ()
CStatus	PutColumnType (LONG in_ColumnIndex, siGridWidgetColumnType in_Type)
siGridWidgetColumnType	GetColumnType (LONG in_ColumnIndex) const
CStatus	PutColumnComboItems (LONG in_ColumnIndex, const CValueArray &in_Items)
CValueArray	GetColumnComboItems (LONG in_ColumnIndex)
GridWidget	GetGridWidget ()
CStatus	SetRowBackgroundColor (LONG in_Row, const CColor &in_Color)
CColor	GetRowBackgroundColor (LONG in_Row)

Constructor & Destructor Documentation

GridData ( )

Default constructor.

~GridData ( )

Default destructor.

GridData ( const CRef & in_ref )

Constructor.

Parameters:

in_ref constant reference object.

GridData ( const GridData & in_obj )

Copy constructor.

Parameters:

in_obj constant class object.

Member Function Documentation

bool IsA ( siClassID in_ClassID ) const [virtual]

Returns true if a given class type is compatible with this API class.

Parameters:

in_ClassID class type.

Returns:: true if the class is compatible, false otherwise.

Reimplemented from CBase.

siClassID GetClassID ( ) const [virtual]

Returns the type of the API class.

Returns:: The class type.

Implements CBase.

GridData& operator= ( const GridData & in_obj )

Creates an object from another object.

Parameters:

in_obj constant class object.

Returns:: The new GridData object.

GridData& operator= ( const CRef & in_ref )

Creates an object from a reference object. The newly created object is set to empty if the input reference object is not compatible.

Parameters:

in_ref constant class object.

Returns:: The new GridData object.

CValueArray GetData ( ) const

Returns the entire 2-dimensional array of cell data. The data is represented as a CValueArray, with the data organized row by row.

Returns:: An array containing all the contents of the array.

CStatus PutData ( const CValueArray & in_items )

Sets the content of the entire GridData object with a single call. The array must contain Row * Column items, and the data is interpreted to be ordered row by row rather than column by column.

Warning:: This call fails if GridData::PutRowCount and GridData::PutColumnCount have not previously been called.

Parameters:

in_items Data to set.

Returns:: Success or failure of operation.

CStatus PutColumnCount ( LONG in_val )

Sets the number of columns contained in the GridData object. It is possible to change the number of columns even after data has been assigned to the GridData object. The value must be greater than zero.

Parameters:

in_val Number of columns for this GridData.

Returns:: Success or failure of operation.

LONG GetColumnCount ( ) const

Returns the number of columns contained in the GridData object.

Returns:: Column count

CStatus PutRowCount ( LONG in_val )

Sets the number of rows contained in the GridData object. It is possible to change the number of rows even after data has been assigned to the GridData object. The value must be greater than zero.

Parameters:

in_val Number of rows for this GridData.

Returns:: Success or failure of operation.

LONG GetRowCount ( ) const

Returns the number of rows contained in the GridData object.

Returns:: Row count

CStatus PutCell	(	LONG	in_Column,
		LONG	in_Row,
		const CValue &	in_CellValue
	)

Changes the value of a single element inside the GridData object. The coordinates must be within the valid range of the GridData's dimensions.

Parameters:

in_Column	Column index (zero-based)
in_Row	Row index (zero-based)
in_CellValue	Value to set in the specified cell

Returns:: Success or failure of operation.

CStatus PutCell	(	const CString &	in_ColumnLabel,
		const CString &	in_RowLabel,
		const CValue &	in_CellValue
	)

Changes the value of a single element inside the GridData object. In this variation of GridData::PutCell the cell is specified by the row and column labels rather than by index. This is a slightly slower approach but it makes the code easier to read. See GridData::PutColumnLabel and GridData::PutRowLabel.

Parameters:

in_ColumnLabel	Column label
in_RowLabel	Row label
in_CellValue	Value for the cell

Returns:: Success or failure of operation.

CValue GetCell	(	LONG	in_Column,
		LONG	in_Row
	)		const

Returns the value stored on a specific cell of the GridData object.

Parameters:

in_Column	Column index (zero-based)
in_Row	Row index (zero-based)

Returns:: The contents of the cell.; CValue::m_t==CValuesiEmpty if the cell is empty.

CValue GetCell	(	const CString &	in_ColumnLabel,
		const CString &	in_RowLabel
	)		const

Returns the value stored on the GridData.

In this variation of GridData::GetCell the cell is specified by the row and column labels rather than by index. This is a slightly slower approach but it makes the code easier to read. See GridData::PutColumnLabel and GridData::PutRowLabel.

Parameters:

in_ColumnLabel	Column label
in_RowLabel	Row label

Returns:: The contents of the cell.; CValue::m_t==CValuesiEmpty if the cell is empty.

CStatus PutColumnValues	(	LONG	in_Column,
		const CValueArray &	in_ColumnItems
	)

Sets values on a single column of a GridData object.

Parameters:

in_Column	Column index (zero-based)
in_ColumnItems	1-dimensional array of values to set. The size should be equal to GridData::GetRowCount.

Returns:: Success or failure of operation.

CStatus PutColumnValues	(	const CString &	in_ColumnLabel,
		const CValueArray &	in_ColumnItems
	)

Sets values for a single column of a GridData object.

Parameters:

in_ColumnLabel	Column label (see GridData::PutColumnLabel)
in_ColumnItems	1-dimensional array of values to set. The size should be equal to GridData::GetRowCount.

Returns:: Success or failure of operation.

CValueArray GetColumnValues ( LONG in_Column ) const

Returns a 1-dimensional array containing all the elements in the requested column.

Parameters:

in_Column Column index (zero-based)

Returns:: A 1-dimensional array of values from the specified column. The size is equal to GridData::GetRowCount.

CValueArray GetColumnValues ( const CString & in_ColumnLabel ) const

Returns a 1-dimensional array containing all the elements in the requested column.

Parameters:

in_ColumnLabel Column label (see GridData::PutColumnLabel)

Returns:: A 1-dimensional array of values from the specified column. The size is equal to GridData::GetRowCount.

CStatus PutRowValues	(	LONG	in_Row,
		const CValueArray &	in_RowItems
	)

Sets values for a single row of a GridData object.

Parameters:

in_Row	Row index (zero-based)
in_RowItems	1-dimensional array of values to set. The size should be equal to GridData::GetColumnCount.

Returns:: Success or failure of operation.

CStatus PutRowValues	(	const CString &	in_RowLabel,
		const CValueArray &	in_RowItems
	)

Sets values for a single row of a GridData object.

Parameters:

in_RowLabel	row label (see GridData::PutRowLabel)
in_RowItems	1-dimensional array of values to set. The size should be equal to GridData::GetColumnCount.

Returns:: Success or failure of operation.

CValueArray GetRowValues ( LONG in_Row ) const

Returns a 1-dimensional array containing all the elements in the requested row.

Parameters:

in_Row Row index (zero-based)

Returns:: A 1-dimensional array of values from the specified row. The size is equal to GridData::GetColumnCount.

CValueArray GetRowValues ( const CString & in_RowLabel ) const

Returns a 1-dimensional array containing all the elements in the requested row.

Parameters:

in_RowLabel Row label (see GridData::PutRowLabel)

Returns:: A 1-dimensional array of values from the specified row. The size is equal to GridData::GetColumnCount.

CStatus PutRowLabel	(	LONG	in_RowIndex,
		const CString &	in_RowLabel
	)

Sets the label for a Row. Labels are optional. The visual appearance of row labels can be tweaked with the ::siUIGridHideRowHeader and ::siUIGridLockRowHeader attributes (see the ::siPPGItemAttribute enum). Once labels are specified it is possible to access data via the labels rather than the cell index via functions like GridData::PutCell and GridData::GetRowValues.

Parameters:

in_RowIndex	Index of the row to label.
in_RowLabel	Row label to use.

Returns:: Success or failure of operation.

CString GetRowLabel ( LONG in_RowIndex ) const

Returns the label string of a row.

Parameters:

in_RowIndex Index of the row with the label to get.

Returns:: The row label.; Empty string if no label has been specified.

CStatus PutColumnLabel	(	LONG	in_ColumnIndex,
		const CString &	in_ColumnLabel
	)

Sets the label for a Column. Labels are optional. The visual appearance of column labels can be tweaked with the ::siUIGridHideColumnHeader and ::siUIGridLockColumnHeader attributes (see the ::siPPGItemAttribute enum). Once labels are specified it is possible to access data via the labels rather than the cell index via functions like GridData::PutCell and GridData::GetColumnValues.

Parameters:

in_ColumnIndex	Index of the column to label.
in_ColumnLabel	Column label to use.

Returns:: Success or failure of operation.

CString GetColumnLabel ( LONG in_ColumnIndex ) const

Returns the label string of a column.

Parameters:

in_ColumnIndex Index of the column with the label to get.

Returns:: The column label.; Empty string if no label has been specified.

CStatus BeginEdit ( )

Call this function to signal that a large portion of the GridData contents has changed. This prevents all updates of the user interface associated with the GridData. If GridData is not associated with a GridControl or if the Property Page with the GridControl is not being inspected then this call has no effect. Hence the most likely place to use this function is inside logic code (see PPGLayout::PutLogic and PPGLayout::GetLogic).

Returns:: Success or failure of operation.

CStatus EndEdit ( )

Call this function to signal the end of major updates to the GridData. At this point all views on the data are rebuilt. For example the user interface may redraw itself. Each call to GridData::EndEdit should match a previous call to GridData::BeginEdit.

Returns:: Success or failure of operation.

CStatus PutColumnType	(	LONG	in_ColumnIndex,
		siGridWidgetColumnType	in_Type
	)

Specifies a type of control to use for a particular column. This function is optional because the default column type, siColumnStandard, is suitable for strings, numbers and most other data.

Parameters:

in_ColumnIndex	Index of the column to modify.
in_Type	Type of control (plain data, check box, combo box). See siGridWidgetColumnType for a complete list of possible control types.

Returns:: Success or failure of operation.

siGridWidgetColumnType GetColumnType ( LONG in_ColumnIndex ) const

Returns the type of a column (for example siColumnCombo or siColumnBool).

Parameters:

in_ColumnIndex Index of the column to retrieve.

Returns:: Type of column control (plain data, check box, combo box). See siGridWidgetColumnType for a complete list of possible control types.

CStatus PutColumnComboItems	(	LONG	in_ColumnIndex,
		const CValueArray &	in_Items
	)

Sets the combo items associated with a column of type siColumnCombo. The items are specified in a 1-dimensional CValueArray, with a label string and associated integer value for each combo item. For example the array ("A", 0, "B", 12) specifies two items for the combo box, one with label "A" and value 0 and the other with label "B" and value 12.

Parameters:

in_ColumnIndex	Column index (zero based)
in_Items	CValueArray containing the label/value pairs

Returns:: Success or failure of operation.

CValueArray GetColumnComboItems ( LONG in_ColumnIndex )

Returns the definition of a GridData column having the type siColumnCombo.

Parameters:

in_ColumnIndex Column index (zero based)

Returns:: CValueArray of items in the combo-box.; Empty array if no combo items have been set (see GridData::PutColumnComboItems).

GridWidget GetGridWidget ( )

Returns a pointer to the user interface control as a GridWidget object. The GridWidget object displays the GridData information on a Property Page (PPG object) which allows you to access information about selected cells.

Note:: This only returns a valid object when the GridData is actually being inspected.

Returns:: GridWidget instance representing the GridData's property page currently being inspected.

CStatus SetRowBackgroundColor	(	LONG	in_Row,
		const CColor &	in_Color
	)

Sets the background color on the specified row.

Returns:: Success or failure of operation.

Parameters:

in_Row	Index of the row to color.
in_Color	Color to appear in the specified row (as a CColor).

Returns:: Success or failure of operation.

Since:: 5.0

CColor GetRowBackgroundColor ( LONG in_Row )

Returns the background color of the specified row.

Parameters:

in_Row Index of the row to access.

Returns:: CColor representing the color that appears in the specified row.

Since:: 5.0

The documentation for this class was generated from the following file:

xsi_griddata.h

Detailed Description

Public Member Functions

Constructor & Destructor Documentation

Member Function Documentation