Package com.gitblit.authority

Source Code of com.gitblit.authority.Utils

/*
* Copyright 2011 gitblit.com.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gitblit.authority;

import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Insets;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Date;

import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;

import com.gitblit.client.DateCellRenderer;
import com.gitblit.client.Translation;
import com.gitblit.utils.StringUtils;

public class Utils {

  public final static int LABEL_WIDTH = 175;

  public final static int MARGIN = 5;

  public final static Insets INSETS = new Insets(MARGIN, MARGIN, MARGIN, MARGIN);

  public final static String TIMESTAMP_FORMAT = "yyyy-MM-dd HH:mm";

  public final static String DATE_FORMAT = "yyyy-MM-dd";

  public static JTable newTable(TableModel model, String datePattern) {
    JTable table = new JTable(model);
    table.setRowHeight(table.getFont().getSize() + 8);
    table.setCellSelectionEnabled(false);
    table.setRowSelectionAllowed(true);
    table.getTableHeader().setReorderingAllowed(false);
    table.setGridColor(new Color(0xd9d9d9));
    table.setBackground(Color.white);
    table.setDefaultRenderer(Date.class,
        new DateCellRenderer(datePattern, Color.orange.darker()));
    return table;
  }

  public static JPanel newFieldPanel(String label, Component c) {
    return newFieldPanel(label, c, null);
  }

  public static JPanel newFieldPanel(String label, Component c, String trailingLabel) {
    JLabel jlabel = new JLabel(label);
    jlabel.setPreferredSize(new Dimension(Utils.LABEL_WIDTH, 20));
    JPanel panel = new JPanel(new FlowLayout(FlowLayout.LEFT));
    panel.add(jlabel);
    panel.add(c);
    if (!StringUtils.isEmpty(trailingLabel)) {
      panel.add(new JLabel(trailingLabel));
    }
    return panel;
  }

  public static void showException(Component c, Throwable t) {
    StringWriter writer = new StringWriter();
    t.printStackTrace(new PrintWriter(writer));
    String stacktrace = writer.toString();
    try {
      writer.close();
    } catch (Throwable x) {
    }
    JTextArea textArea = new JTextArea(stacktrace);
    textArea.setFont(new Font("monospaced", Font.PLAIN, 11));
    JScrollPane jsp = new JScrollPane(textArea);
    jsp.setPreferredSize(new Dimension(800, 400));
    JOptionPane.showMessageDialog(c, jsp, Translation.get("gb.error"),
        JOptionPane.ERROR_MESSAGE);
  }

  public static void packColumns(JTable table, int margin) {
    for (int c = 0; c < table.getColumnCount(); c++) {
      packColumn(table, c, 4);
    }
  }

  // Sets the preferred width of the visible column specified by vColIndex.
  // The column will be just wide enough to show the column head and the
  // widest cell in the column. margin pixels are added to the left and right
  // (resulting in an additional width of 2*margin pixels).
  private static void packColumn(JTable table, int vColIndex, int margin) {
    DefaultTableColumnModel colModel = (DefaultTableColumnModel) table.getColumnModel();
    TableColumn col = colModel.getColumn(vColIndex);
    int width = 0;

    // Get width of column header
    TableCellRenderer renderer = col.getHeaderRenderer();
    if (renderer == null) {
      renderer = table.getTableHeader().getDefaultRenderer();
    }
    Component comp = renderer.getTableCellRendererComponent(table, col.getHeaderValue(), false,
        false, 0, 0);
    width = comp.getPreferredSize().width;

    // Get maximum width of column data
    for (int r = 0; r < table.getRowCount(); r++) {
      renderer = table.getCellRenderer(r, vColIndex);
      comp = renderer.getTableCellRendererComponent(table, table.getValueAt(r, vColIndex),
          false, false, r, vColIndex);
      width = Math.max(width, comp.getPreferredSize().width);
    }

    // Add margin
    width += 2 * margin;

    // Set the width
    col.setPreferredWidth(width);
  }
}
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