package org.kuali.student.common.ui.client.widgets.table.scroll;
   
   import com.google.gwt.user.client.ui.Label;
   import com.google.gwt.user.client.ui.Widget;
   
   /**
    * Column definition for table column.
    * 
    * 
   * */
  public class Column {
  	/** Ascending order. */
  	public final static int Ascending = 1;
  	/** Descending order */
  	public final static int Descending = 2;
  	/** Not sorted */
  	public final static int NotOrdered = 3;
      
  	private Widget columnTitleWidget;
  	private String id;
  	private String name = "";
  	private String width;
  	private int sortDirection = NotOrdered;
  	private boolean isVisible = true;
  	private boolean isSortable;
  
  	private RowComparator ascendingRowComparator;
  	private RowComparator descendingRowComparator;
  
  	/**
  	 * Get the row comparator.
  	 * */
  	public RowComparator getComparator() {
  		if (this.sortDirection == Ascending) {
  			return ascendingRowComparator;
  		} else if (this.sortDirection == Descending) {
  			return descendingRowComparator;
  		} else {
  			return null;
  		}
  	}
      /** Get comparator for ascending sort*/
  	public RowComparator getAscendingRowComparator() {
  		return ascendingRowComparator;
  	}
  
  	public void setAscendingRowComparator(RowComparator ascendingRowComparator) {
  		this.ascendingRowComparator = ascendingRowComparator;
  		this.isSortable = true;
  	}
  
  	public RowComparator getDescendingRowComparator() {
  		return descendingRowComparator;
  	}
  
  	public void setDescendingRowComparator(RowComparator descedingRowcomparator) {
  		this.descendingRowComparator = descedingRowcomparator;
  		this.isSortable = true;
  	}
  
  	public boolean isVisible() {
  		return isVisible;
  	}
  
  	public void setVisible(boolean isVisible) {
  		this.isVisible = isVisible;
  	}
  
  	public Widget getColumnTitleWidget() {
  		if (columnTitleWidget == null) {
  			return new Label(name);
  		}
  
  		return columnTitleWidget;
  	}
  
  	public void setColumnTitleWidget(Widget c) {
  		columnTitleWidget = c;
  	}
  
  	public String getId() {
  		return id;
  	}
  
  	public void setId(String id) {
  		this.id = id;
  	}
  
  	public boolean isSortable() {
  		return isSortable;
  	}
  
  	public void setSortable(boolean isSortable) {
  		this.isSortable = isSortable;
  	}
  
  	public String getName() {
  		return name;
  	}
 
 	public void setName(String name) {
 		this.name = name;
 	}
 
 	public String getWidth() {
 		return width;
 	}
 
 	public void setWidth(String width) {
 		this.width = width;
 	}
 
 	public void changeSortDirection() {
 		if (this.sortDirection == NotOrdered) {
 			this.sortDirection = Ascending;
 		} else if (this.sortDirection == Ascending) {
 			this.sortDirection = Descending;
 		} else if (this.sortDirection == Descending) {
 			this.sortDirection = Ascending;
 		}
 	}
 
 	public void setSortDirection(int sortDirection) {
 		this.sortDirection = sortDirection;
 	}
 
 	public int getSortDirection() {
 		return sortDirection;
 	}
 
 	public void setSortedType(int direction) {
 		sortDirection = direction;
 	}
 }