GridData Class Reference

Related Scripting Object: GridData

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. More...

#include <xsi_griddata.h>

Inheritance diagram for GridData:

Detailed Description

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 ) ;

Constructor & Destructor Documentation

Default destructor.

Constructor.

Parameters:

in_ref

constant reference object.

Copy constructor.

Parameters:

in_obj

constant class object.

Member Function Documentation

Returns the type of the API class.

Returns:

The class type.

Implements CBase.

Creates an object from another object.

Parameters:

in_obj

constant class object.

Returns:

The new GridData object.

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.

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.

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.

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.

Returns the number of columns contained in the GridData object.

Returns:

Column count

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.

Returns the number of rows contained in the GridData object.

Returns:

Row count

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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).

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.

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

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

• xsi_griddata.h