/*
* @(#)TableColumnModel.java 1.25 04/05/05
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.swing.table;
import java.util.Enumeration;
import javax.swing.event.ChangeEvent;
import javax.swing.event.*;
import javax.swing.*;
/**
* Defines the requirements for a table column model object suitable for
* use with <code>JTable</code>.
*
* @version 1.25 05/05/04
* @author Alan Chung
* @author Philip Milne
* @see DefaultTableColumnModel
*/
public interface TableColumnModel
{
//
// Modifying the model
//
/**
* Appends <code>aColumn</code> to the end of the
* <code>tableColumns</code> array.
* This method posts a <code>columnAdded</code>
* event to its listeners.
*
* @param aColumn the <code>TableColumn</code> to be added
* @see #removeColumn
*/
public void addColumn(TableColumn aColumn);
/**
* Deletes the <code>TableColumn</code> <code>column</code> from the
* <code>tableColumns</code> array. This method will do nothing if
* <code>column</code> is not in the table's column list.
* This method posts a <code>columnRemoved</code>
* event to its listeners.
*
* @param column the <code>TableColumn</code> to be removed
* @see #addColumn
*/
public void removeColumn(TableColumn column);
/**
* Moves the column and its header at <code>columnIndex</code> to
* <code>newIndex</code>. The old column at <code>columnIndex</code>
* will now be found at <code>newIndex</code>. The column that used
* to be at <code>newIndex</code> is shifted left or right
* to make room. This will not move any columns if
* <code>columnIndex</code> equals <code>newIndex</code>. This method
* posts a <code>columnMoved</code> event to its listeners.
*
* @param columnIndex the index of column to be moved
* @param newIndex index of the column's new location
* @exception IllegalArgumentException if <code>columnIndex</code> or
* <code>newIndex</code>
* are not in the valid range
*/
public void moveColumn(int columnIndex, int newIndex);
/**
* Sets the <code>TableColumn</code>'s column margin to
* <code>newMargin</code>. This method posts
* a <code>columnMarginChanged</code> event to its listeners.
*
* @param newMargin the width, in pixels, of the new column margins
* @see #getColumnMargin
*/
public void setColumnMargin(int newMargin);
//
// Querying the model
//
/**
* Returns the number of columns in the model.
* @return the number of columns in the model
*/
public int getColumnCount();
/**
* Returns an <code>Enumeration</code> of all the columns in the model.
* @return an <code>Enumeration</code> of all the columns in the model
*/
public Enumeration<TableColumn> getColumns();
/**
* Returns the index of the first column in the table
* whose identifier is equal to <code>identifier</code>,
* when compared using <code>equals</code>.
*
* @param columnIdentifier the identifier object
* @return the index of the first table column
* whose identifier is equal to <code>identifier</code>
* @exception IllegalArgumentException if <code>identifier</code>
* is <code>null</code>, or no
* <code>TableColumn</code> has this
* <code>identifier</code>
* @see #getColumn
*/
public int getColumnIndex(Object columnIdentifier);
/**
* Returns the <code>TableColumn</code> object for the column at
* <code>columnIndex</code>.
*
* @param columnIndex the index of the desired column
* @return the <code>TableColumn</code> object for
* the column at <code>columnIndex</code>
*/
public TableColumn getColumn(int columnIndex);
/**
* Returns the width between the cells in each column.
* @return the margin, in pixels, between the cells
*/
public int getColumnMargin();
/**
* Returns the index of the column that lies on the
* horizontal point, <code>xPosition</code>;
* or -1 if it lies outside the any of the column's bounds.
*
* In keeping with Swing's separable model architecture, a
* TableColumnModel does not know how the table columns actually appear on
* screen. The visual presentation of the columns is the responsibility
* of the view/controller object using this model (typically JTable). The
* view/controller need not display the columns sequentially from left to
* right. For example, columns could be displayed from right to left to
* accomodate a locale preference or some columns might be hidden at the
* request of the user. Because the model does not know how the columns
* are laid out on screen, the given <code>xPosition</code> should not be
* considered to be a coordinate in 2D graphics space. Instead, it should
* be considered to be a width from the start of the first column in the
* model. If the column index for a given X coordinate in 2D space is
* required, <code>JTable.columnAtPoint</code> can be used instead.
*
* @return the index of the column; or -1 if no column is found
* @see javax.swing.JTable#columnAtPoint
*/
public int getColumnIndexAtX(int xPosition);
/**
* Returns the total width of all the columns.
* @return the total computed width of all columns
*/
public int getTotalColumnWidth();
//
// Selection
//
/**
* Sets whether the columns in this model may be selected.
* @param flag true if columns may be selected; otherwise false
* @see #getColumnSelectionAllowed
*/
public void setColumnSelectionAllowed(boolean flag);
/**
* Returns true if columns may be selected.
* @return true if columns may be selected
* @see #setColumnSelectionAllowed
*/
public boolean getColumnSelectionAllowed();
/**
* Returns an array of indicies of all selected columns.
* @return an array of integers containing the indicies of all
* selected columns; or an empty array if nothing is selected
*/
public int[] getSelectedColumns();
/**
* Returns the number of selected columns.
*
* @return the number of selected columns; or 0 if no columns are selected
*/
public int getSelectedColumnCount();
/**
* Sets the selection model.
*
* @param newModel a <code>ListSelectionModel</code> object
* @see #getSelectionModel
*/
public void setSelectionModel(ListSelectionModel newModel);
/**
* Returns the current selection model.
*
* @return a <code>ListSelectionModel</code> object
* @see #setSelectionModel
*/
public ListSelectionModel getSelectionModel();
//
// Listener
//
/**
* Adds a listener for table column model events.
*
* @param x a <code>TableColumnModelListener</code> object
*/
public void addColumnModelListener(TableColumnModelListener x);
/**
* Removes a listener for table column model events.
*
* @param x a <code>TableColumnModelListener</code> object
*/
public void removeColumnModelListener(TableColumnModelListener x);
}
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