tablecell.java

来自「一个用java写的地震分析软件(无源码)-used to write a sei」· Java 代码 · 共 78 行

package org.trinet.util.graphics.table;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
public class TableCell {
    public static boolean resetRowColumnSizes(JTable table, int irow) {
	if (table == null) return false;
	int rowCount = table.getRowCount();
	if (irow < 0 || irow > rowCount) return false;
        TableColumn column = null;
        Component comp = null;
        int headerWidth = 0;
        int cellWidth = 0;
	int colCount = table.getColumnCount();
        for (int i = 0; i < colCount; i++) {
          column = table.getColumnModel().getColumn(i);
          comp = column.getHeaderRenderer().
                             getTableCellRendererComponent(
                                 table, column.getHeaderValue(), 
                                 false, false, 0, 0);
          headerWidth = comp.getPreferredSize().width;
	  int maxCellWidth = 0;
          comp = table.getCellRenderer(irow,i).
                       getTableCellRendererComponent(
                       table, table.getValueAt(irow,i),
                       false, false, irow, i);
          cellWidth = comp.getPreferredSize().width;
	  if (cellWidth > maxCellWidth) maxCellWidth = cellWidth;
          column.setPreferredWidth(Math.max(headerWidth, maxCellWidth));
	}
	return true;
    } 

    public static int getRenderedCellWidth(JTable table, int irow, int icol) {
	if (table == null) return -1;
	int rowCount = table.getRowCount();
	if (irow < 0 || irow > rowCount) return -1;
	int colCount = table.getColumnCount();
	if (icol < 0 || icol > colCount) return -1;
	TableColumn column = table.getColumnModel().getColumn(icol);
	if (column == null ) return -1;
	Component comp = table.getCellRenderer(irow,icol).
		getTableCellRendererComponent(
		table, table.getValueAt(irow,icol),
		false, false, irow, icol);
	return comp.getPreferredSize().width;
    } 

    public static int getPreferredRowWidth(JTable table, int irow) {
	if (table == null) return -1;
	int rowCount = table.getRowCount();
	if (irow < 0 || irow > rowCount) return -1;
        TableColumn column = null;
        Component comp = null;
        int headerWidth = 0;
        int cellWidth = 0;
	int maxWidth = 0;
	int colCount = table.getColumnCount();
        for (int i = 0; i < colCount; i++) {
          column = table.getColumnModel().getColumn(i);
          comp = column.getHeaderRenderer().
                             getTableCellRendererComponent(
                                 table, column.getHeaderValue(), 
                                 false, false, 0, 0);
          headerWidth = comp.getPreferredSize().width;
	  int maxCellWidth = 0;
          comp = table.getCellRenderer(irow,i).
                             getTableCellRendererComponent(
                                 table, table.getValueAt(irow,i),
                                 false, false, irow, i);
          cellWidth = comp.getPreferredSize().width;
	  if (cellWidth > maxCellWidth) maxCellWidth = cellWidth;
          maxWidth += Math.max(headerWidth, maxCellWidth);
        }
	return maxWidth;
    }
}