javax.swing.JTable#setSize ( )源码实例Demo

/**
 * Forces the table to resize given column.
 */
private void resize(int newWidth, JTable table) {
    int oldWidth = getWidth();
    JTableHeader header = table.getTableHeader();
    if (header == null) {
        return;
    }
    header.setResizingColumn(this);
    final int oldMin = getMinWidth();
    final int oldMax = getMaxWidth();
    setMinWidth(newWidth);
    setMaxWidth(newWidth);
    setWidth(newWidth);
    // The trick is to restore the original values
    // after the table has be layouted. During layout this column
    // has fixed width (by setting min==max==preffered)
    SwingUtilities.invokeLater(new Runnable() {
        @Override
        public void run() {
            setMinWidth(oldMin);
            setMaxWidth(oldMax);
        }
    });
    Container container;
    if ((header.getParent() == null) ||
            ((container = header.getParent().getParent()) == null) ||
            !(container instanceof JScrollPane)) {
        header.setResizingColumn(null);
        return;
    }
    
    if (!container.getComponentOrientation().isLeftToRight() &&
            ! header.getComponentOrientation().isLeftToRight()) {
        if (table != null) {
            JViewport viewport = ((JScrollPane)container).getViewport();
            int viewportWidth = viewport.getWidth();
            int diff = newWidth - oldWidth;
            int newHeaderWidth = table.getWidth() + diff;
            
            /* Resize a table */
            Dimension tableSize = table.getSize();
            tableSize.width += diff;
            table.setSize(tableSize);
            
            /* If this table is in AUTO_RESIZE_OFF mode and
             * has a horizontal scrollbar, we need to update
             * a view's position.
             */
            if ((newHeaderWidth >= viewportWidth) &&
                    (table.getAutoResizeMode() == JTable.AUTO_RESIZE_OFF)) {
                Point p = viewport.getViewPosition();
                p.x = Math.max(0, Math.min(newHeaderWidth - viewportWidth, p.x + diff));
                viewport.setViewPosition(p);
            }
        }
    }
    header.setResizingColumn(null);
}
 

public TaskList(TaskHandler handler) {
	this();
	this.handler = handler;
	model = new SingleHandlerTaskModel(handler);
	table = new JTable(model);
	table.setAutoCreateColumnsFromModel(true);
	table.setDefaultRenderer(String.class, new DefaultTableCellRenderer());
	getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);
	update(0,0);
	table.setSize(640,200);
	table.setPreferredSize(new Dimension(640, 200));
	pack();
}
 

private static void checkTableGridLines() {

        TableModel dataModel = new AbstractTableModel() {
            public int getColumnCount() {
                return 10;
            }

            public int getRowCount() {
                return 10;
            }

            public Object getValueAt(int row, int col) {
                return " ";
            }
        };

        DefaultTableCellRenderer r = new DefaultTableCellRenderer();
        r.setOpaque(true);
        r.setBackground(CELL_RENDERER_BACKGROUND_COLOR);

        JTable table = new JTable(dataModel);
        table.setSize(WIDTH, HEIGHT);
        table.setDefaultRenderer(Object.class, r);
        table.setGridColor(GRID_COLOR);
        table.setShowGrid(true);
        table.setShowHorizontalLines(true);
        table.setShowVerticalLines(true);
        table.setBackground(TABLE_BACKGROUND_COLOR);

        checkTableGridLines(table);
    }
 

private static void checkTableGridLines() {

        TableModel dataModel = new AbstractTableModel() {
            public int getColumnCount() {
                return 10;
            }

            public int getRowCount() {
                return 10;
            }

            public Object getValueAt(int row, int col) {
                return " ";
            }
        };

        DefaultTableCellRenderer r = new DefaultTableCellRenderer();
        r.setOpaque(true);
        r.setBackground(CELL_RENDERER_BACKGROUND_COLOR);

        JTable table = new JTable(dataModel);
        table.setSize(WIDTH, HEIGHT);
        table.setDefaultRenderer(Object.class, r);
        table.setGridColor(GRID_COLOR);
        table.setShowGrid(true);
        table.setShowHorizontalLines(true);
        table.setShowVerticalLines(true);
        table.setBackground(TABLE_BACKGROUND_COLOR);

        checkTableGridLines(table);
    }
 

public TaskList(List handlers) {
	this();
	this.handlers = handlers;
	model = new MultipleHandlerTaskModel(handlers);
	table = new JTable(model);
	table.setAutoCreateColumnsFromModel(true);
	table.setDefaultRenderer(String.class, new DefaultTableCellRenderer());
	getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);
	update(0,0);
	table.setSize(640,200);
	table.setPreferredSize(new Dimension(640, 200));
	pack();
}
 

private JComponent getMappingsPanel() {
    // Mappings panel

    final ActionMap actionMap = this.getContext().getActionMap(this.getClass(), this);

    tableModel = new PortMappingsTableModel(app);
    mappingsTable = new JTable(tableModel);
    mappingsTable.setAutoCreateRowSorter(true);
    mappingsTable.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
    mappingsTable.setSize(new Dimension(400, 100));
    mappingsTable.getSelectionModel().addListSelectionListener(
            e -> firePropertyChange(PROPERTY_MAPPING_SELECTED, false, isMappingSelected()));

    final JScrollPane mappingsTabelPane = new JScrollPane();
    mappingsTabelPane.setViewportView(mappingsTable);

    final JPanel mappingsPanel = new JPanel(new MigLayout("", "[fill,grow]", "[grow,fill][]"));
    mappingsPanel.setName("port_mappings");
    final Border panelBorder = BorderFactory
            .createTitledBorder(app.getResourceMap().getString("mainFrame.port_mappings.title"));
    mappingsPanel.setBorder(panelBorder);
    mappingsPanel.add(mappingsTabelPane, "height 100::, span 2, wrap");

    mappingsPanel.add(new JButton(actionMap.get(ACTION_REMOVE_MAPPINGS)), "");
    mappingsPanel.add(new JButton(actionMap.get(ACTION_UPDATE_PORT_MAPPINGS)), "wrap");
    return mappingsPanel;
}
 

private void setSizeAndDimensions(@NotNull JTable table, @NotNull JBPopup popup,
    @NotNull RelativePoint popupPosition, @NotNull List<UsageNode> data) {
  JComponent content = popup.getContent();
  Window window = SwingUtilities.windowForComponent(content);
  Dimension d = window.getSize();

  int width = calcMaxWidth(table);
  width = (int) Math.max(d.getWidth(), width);
  Dimension headerSize = ((AbstractPopup) popup).getHeaderPreferredSize();
  width = Math.max((int) headerSize.getWidth(), width);
  width = Math.max(myWidth, width);

  if (myWidth == -1) myWidth = width;
  int newWidth = Math.max(width, d.width + width - myWidth);

  myWidth = newWidth;

  int rowsToShow = Math.min(30, data.size());
  Dimension dimension = new Dimension(newWidth, table.getRowHeight() * rowsToShow);
  Rectangle rectangle = fitToScreen(dimension, popupPosition, table);
  dimension = rectangle.getSize();
  Point location = window.getLocation();
  if (!location.equals(rectangle.getLocation())) {
    window.setLocation(rectangle.getLocation());
  }

  if (!data.isEmpty()) {
    TableScrollingUtil.ensureSelectionExists(table);
  }
  table.setSize(dimension);
  //table.setPreferredSize(dimension);
  //table.setMaximumSize(dimension);
  //table.setPreferredScrollableViewportSize(dimension);

  Dimension footerSize = ((AbstractPopup) popup).getFooterPreferredSize();

  int newHeight = (int) (dimension.height + headerSize.getHeight() + footerSize.getHeight()) + 4/* invisible borders, margins etc*/;
  Dimension newDim = new Dimension(dimension.width, newHeight);
  window.setSize(newDim);
  window.setMinimumSize(newDim);
  window.setMaximumSize(newDim);

  window.validate();
  window.repaint();
  table.revalidate();
  table.repaint();
}
 

private void setSizeAndDimensions(@NotNull JTable table,
    @NotNull JBPopup popup,
    @NotNull RelativePoint popupPosition,
    @NotNull List<UsageNode> data) {
  JComponent content = popup.getContent();
  Window window = SwingUtilities.windowForComponent(content);
  Dimension d = window.getSize();

  int width = calcMaxWidth(table);
  width = (int)Math.max(d.getWidth(), width);
  Dimension headerSize = ((AbstractPopup)popup).getHeaderPreferredSize();
  width = Math.max((int)headerSize.getWidth(), width);
  width = Math.max(myWidth, width);

  if (myWidth == -1) myWidth = width;
  int newWidth = Math.max(width, d.width + width - myWidth);

  myWidth = newWidth;

  int rowsToShow = Math.min(30, data.size());
  Dimension dimension = new Dimension(newWidth, table.getRowHeight() * rowsToShow);
  Rectangle rectangle = fitToScreen(dimension, popupPosition, table);
  dimension = rectangle.getSize();
  Point location = window.getLocation();
  if (!location.equals(rectangle.getLocation())) {
    window.setLocation(rectangle.getLocation());
  }

  if (!data.isEmpty()) {
    TableScrollingUtil.ensureSelectionExists(table);
  }
  table.setSize(dimension);
  //table.setPreferredSize(dimension);
  //table.setMaximumSize(dimension);
  //table.setPreferredScrollableViewportSize(dimension);


  Dimension footerSize = ((AbstractPopup)popup).getFooterPreferredSize();

  int newHeight = (int)(dimension.height + headerSize.getHeight() + footerSize.getHeight()) + 4/* invisible borders, margins etc*/;
  Dimension newDim = new Dimension(dimension.width, newHeight);
  window.setSize(newDim);
  window.setMinimumSize(newDim);
  window.setMaximumSize(newDim);

  window.validate();
  window.repaint();
  table.revalidate();
  table.repaint();
}