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Java > Java SE, EE, ME > javax > swing > table > TableColumnModel

javax.swing.table
Interface TableColumnModel

All Known Implementing Classes:
DefaultTableColumnModel
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Top Examples, Source Code
void addColumn(TableColumn aColumn)
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removeColumn(javax.swing.table.TableColumn)
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void addColumnModelListener(TableColumnModelListener x)
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TableColumn getColumn(int columnIndex)
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int getColumnCount()
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[86]Resize each column according to the maximum data width of the column
By Anonymous on 2002/10/14 19:15:16  Rate
//Resize each column according to the maximum data width of the column     
  
  
 public static void calcColumnWidths ( JTable table )   {          
  
  
 int padding = 5; // Cell Padding         
 JTableHeader header = table.getTableHeader (  ) ;         
 TableCellRenderer defaultHeaderRenderer = null;         
 if  ( header != null )              
    defaultHeaderRenderer = header.getDefaultRenderer (  ) ;         
     
 TableColumnModel columns = table.getColumnModel (  ) ;         
 TableModel data = table.getModel (  ) ;         
 int margin = columns.getColumnMargin (  ) ; // only JDK1.3         
 int rowCount = data.getRowCount (  ) ;         
 int totalWidth = 0;         
 int viewPortTotalWidth = 0;     
  
  
 for  ( int i = columns.getColumnCount (  )  - 1; i  > = 0; --i )   {              
   TableColumn column = columns.getColumn ( i ) ;             
   int columnIndex = column.getModelIndex (  ) ;             
   int width = -1;             
   TableCellRenderer h = column.getHeaderRenderer (  ) ;        
    
   if  ( h == null )                  
      h = defaultHeaderRenderer;             
       
   if  ( h != null )   {  // Not explicitly impossible                 
      Component c = h.getTableCellRendererComponent ( table, column.getHeaderValue (  ) , false, false, -1, i ) ;                 
      width = c.getPreferredSize (  ) .width;             
    }              
    
   for  ( int row = rowCount - 1; row  > = 0; --row )   {                  
      TableCellRenderer r = table.getCellRenderer ( row, i ) ;                 
      Component c = r.getTableCellRendererComponent ( table, data.getValueAt ( row, columnIndex ) , false, false, row, i ) ;                 
      width = Math.max ( width, c.getPreferredSize (  ) .width ) ;             
    }              
    
   if  ( width  > = 0 )                  
     column.setPreferredWidth ( width + margin + padding ) ; //  < 1.3: without margin             
   else                 
      ; // ???             
       
   if  ( i  <  6 )   {                  
      viewPortTotalWidth += column.getPreferredWidth (  ) ;             
    }              
    
   totalWidth += column.getPreferredWidth (  ) ; //         
    
    }      
    
  }   
 
int getColumnIndex(Object columnIdentifier)
See Also:
getColumn(int), IllegalArgumentException
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int getColumnIndexAtX(int xPosition)
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JTable.columnAtPoint(java.awt.Point)
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int getColumnMargin()
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Enumeration<TableColumn> getColumns()
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boolean getColumnSelectionAllowed()
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setColumnSelectionAllowed(boolean)
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int getSelectedColumnCount()
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int[] getSelectedColumns()
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ListSelectionModel getSelectionModel()
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setSelectionModel(javax.swing.ListSelectionModel)
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int getTotalColumnWidth()
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void moveColumn(int columnIndex,
                int newIndex)
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IllegalArgumentException
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void removeColumn(TableColumn column)
See Also:
addColumn(javax.swing.table.TableColumn)
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void removeColumnModelListener(TableColumnModelListener x)
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void setColumnMargin(int newMargin)
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getColumnMargin()
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void setColumnSelectionAllowed(boolean flag)
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getColumnSelectionAllowed()
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void setSelectionModel(ListSelectionModel newModel)
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getSelectionModel()
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