git.gag.com Git - fw/altos/blob - altosui/AltosDeviceDialog.java

   1 /*
   2  * Copyright © 2010 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package altosui;
  19
  20 import java.lang.*;
  21 import java.util.*;
  22 import javax.swing.*;
  23 import java.awt.*;
  24 import java.awt.event.*;
  25 import libaltosJNI.libaltos;
  26 import libaltosJNI.altos_device;
  27 import libaltosJNI.SWIGTYPE_p_altos_file;
  28 import libaltosJNI.SWIGTYPE_p_altos_list;
  29
  30 public class AltosDeviceDialog extends JDialog implements ActionListener {
  31
  32         private static AltosDeviceDialog        dialog;
  33         private static AltosDevice              value = null;
  34         private JList                           list;
  35
  36         public static AltosDevice show (Component frameComp, int product) {
  37
  38                 Frame frame = JOptionPane.getFrameForComponent(frameComp);
  39                 AltosDevice[]   devices;
  40                 devices = AltosDevice.list(product);
  41
  42                 if (devices != null && devices.length > 0) {
  43                         value = null;
  44                         dialog = new AltosDeviceDialog(frame, frameComp,
  45                                                        devices,
  46                                                        devices[0]);
  47
  48                         dialog.setVisible(true);
  49                         return value;
  50                 } else {
  51                         /* check for missing altos JNI library, which
  52                          * will put up its own error dialog
  53                          */
  54                         if (AltosUI.load_library(frame)) {
  55                                 JOptionPane.showMessageDialog(frame,
  56                                                               "No AltOS devices available",
  57                                                               "No AltOS devices",
  58                                                               JOptionPane.ERROR_MESSAGE);
  59                         }
  60                         return null;
  61                 }
  62         }
  63
  64         private AltosDeviceDialog (Frame frame, Component location,
  65                                    AltosDevice[] devices,
  66                                    AltosDevice initial) {
  67                 super(frame, "Device Selection", true);
  68
  69                 value = null;
  70
  71                 JButton cancelButton = new JButton("Cancel");
  72                 cancelButton.addActionListener(this);
  73
  74                 final JButton selectButton = new JButton("Select");
  75                 selectButton.setActionCommand("select");
  76                 selectButton.addActionListener(this);
  77                 getRootPane().setDefaultButton(selectButton);
  78
  79                 list = new JList(devices) {
  80                                 //Subclass JList to workaround bug 4832765, which can cause the
  81                                 //scroll pane to not let the user easily scroll up to the beginning
  82                                 //of the list.  An alternative would be to set the unitIncrement
  83                                 //of the JScrollBar to a fixed value. You wouldn't get the nice
  84                                 //aligned scrolling, but it should work.
  85                                 public int getScrollableUnitIncrement(Rectangle visibleRect,
  86                                                                       int orientation,
  87                                                                       int direction) {
  88                                         int row;
  89                                         if (orientation == SwingConstants.VERTICAL &&
  90                                             direction < 0 && (row = getFirstVisibleIndex()) != -1) {
  91                                                 Rectangle r = getCellBounds(row, row);
  92                                                 if ((r.y == visibleRect.y) && (row != 0))  {
  93                                                         Point loc = r.getLocation();
  94                                                         loc.y--;
  95                                                         int prevIndex = locationToIndex(loc);
  96                                                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
  97
  98                                                         if (prevR == null || prevR.y >= r.y) {
  99                                                                 return 0;
 100                                                         }
 101                                                         return prevR.height;
 102                                                 }
 103                                         }
 104                                         return super.getScrollableUnitIncrement(
 105                                                 visibleRect, orientation, direction);
 106                                 }
 107                         };
 108
 109                 list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 110                 list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
 111                 list.setVisibleRowCount(-1);
 112                 list.addMouseListener(new MouseAdapter() {
 113                                  public void mouseClicked(MouseEvent e) {
 114                                          if (e.getClickCount() == 2) {
 115                                                  selectButton.doClick(); //emulate button click
 116                                          }
 117                                  }
 118                         });
 119                 JScrollPane listScroller = new JScrollPane(list);
 120                 listScroller.setPreferredSize(new Dimension(400, 80));
 121                 listScroller.setAlignmentX(LEFT_ALIGNMENT);
 122
 123                 //Create a container so that we can add a title around
 124                 //the scroll pane.  Can't add a title directly to the
 125                 //scroll pane because its background would be white.
 126                 //Lay out the label and scroll pane from top to bottom.
 127                 JPanel listPane = new JPanel();
 128                 listPane.setLayout(new BoxLayout(listPane, BoxLayout.PAGE_AXIS));
 129
 130                 JLabel label = new JLabel("Select Device");
 131                 label.setLabelFor(list);
 132                 listPane.add(label);
 133                 listPane.add(Box.createRigidArea(new Dimension(0,5)));
 134                 listPane.add(listScroller);
 135                 listPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
 136
 137                 //Lay out the buttons from left to right.
 138                 JPanel buttonPane = new JPanel();
 139                 buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.LINE_AXIS));
 140                 buttonPane.setBorder(BorderFactory.createEmptyBorder(0, 10, 10, 10));
 141                 buttonPane.add(Box.createHorizontalGlue());
 142                 buttonPane.add(cancelButton);
 143                 buttonPane.add(Box.createRigidArea(new Dimension(10, 0)));
 144                 buttonPane.add(selectButton);
 145
 146                 //Put everything together, using the content pane's BorderLayout.
 147                 Container contentPane = getContentPane();
 148                 contentPane.add(listPane, BorderLayout.CENTER);
 149                 contentPane.add(buttonPane, BorderLayout.PAGE_END);
 150
 151                 //Initialize values.
 152                 list.setSelectedValue(initial, true);
 153                 pack();
 154                 setLocationRelativeTo(location);
 155         }
 156
 157         //Handle clicks on the Set and Cancel buttons.
 158         public void actionPerformed(ActionEvent e) {
 159                 if ("select".equals(e.getActionCommand()))
 160                         AltosDeviceDialog.value = (AltosDevice)(list.getSelectedValue());
 161                 AltosDeviceDialog.dialog.setVisible(false);
 162         }
 163
 164 }