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 javax.swing.*;
  21 import java.awt.*;
  22 import java.awt.event.*;
  23
  24 public class AltosDeviceDialog extends AltosDialog implements ActionListener {
  25
  26         private AltosDevice     value;
  27         private JList           list;
  28         private JButton         cancel_button;
  29         private JButton         select_button;
  30         private JButton         manage_bluetooth_button;
  31         private Frame           frame;
  32         private int             product;
  33
  34         private AltosDevice getValue() {
  35                 return value;
  36         }
  37
  38         private AltosDevice[] devices() {
  39                 java.util.List<AltosDevice>     usb_devices = AltosUSBDevice.list(product);
  40                 int                             num_devices = usb_devices.size();
  41                 java.util.List<AltosDevice>     bt_devices = AltosBTKnown.bt_known().list(product);
  42                 num_devices += bt_devices.size();
  43                 AltosDevice[]                   devices = new AltosDevice[num_devices];
  44
  45                 for (int i = 0; i < usb_devices.size(); i++)
  46                         devices[i] = usb_devices.get(i);
  47                 int off = usb_devices.size();
  48                 for (int j = 0; j < bt_devices.size(); j++)
  49                         devices[off + j] = bt_devices.get(j);
  50                 return devices;
  51         }
  52
  53         private void update_devices() {
  54                 AltosDevice[] devices = devices();
  55                 list.setListData(devices);
  56                 select_button.setEnabled(devices.length > 0);
  57         }
  58
  59         private AltosDeviceDialog (Frame in_frame, Component location, int in_product) {
  60                 super(in_frame, "Device Selection", true);
  61
  62                 product = in_product;
  63                 frame = in_frame;
  64                 value = null;
  65
  66                 AltosDevice[]   devices = devices();
  67
  68                 cancel_button = new JButton("Cancel");
  69                 cancel_button.setActionCommand("cancel");
  70                 cancel_button.addActionListener(this);
  71
  72                 manage_bluetooth_button = new JButton("Manage Bluetooth");
  73                 manage_bluetooth_button.setActionCommand("manage");
  74                 manage_bluetooth_button.addActionListener(this);
  75
  76                 select_button = new JButton("Select");
  77                 select_button.setActionCommand("select");
  78                 select_button.addActionListener(this);
  79                 if (devices.length == 0)
  80                         select_button.setEnabled(false);
  81                 getRootPane().setDefaultButton(select_button);
  82
  83                 list = new JList(devices) {
  84                                 //Subclass JList to workaround bug 4832765, which can cause the
  85                                 //scroll pane to not let the user easily scroll up to the beginning
  86                                 //of the list.  An alternative would be to set the unitIncrement
  87                                 //of the JScrollBar to a fixed value. You wouldn't get the nice
  88                                 //aligned scrolling, but it should work.
  89                                 public int getScrollableUnitIncrement(Rectangle visibleRect,
  90                                                                       int orientation,
  91                                                                       int direction) {
  92                                         int row;
  93                                         if (orientation == SwingConstants.VERTICAL &&
  94                                             direction < 0 && (row = getFirstVisibleIndex()) != -1) {
  95                                                 Rectangle r = getCellBounds(row, row);
  96                                                 if ((r.y == visibleRect.y) && (row != 0))  {
  97                                                         Point loc = r.getLocation();
  98                                                         loc.y--;
  99                                                         int prevIndex = locationToIndex(loc);
 100                                                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
 101
 102                                                         if (prevR == null || prevR.y >= r.y) {
 103                                                                 return 0;
 104                                                         }
 105                                                         return prevR.height;
 106                                                 }
 107                                         }
 108                                         return super.getScrollableUnitIncrement(
 109                                                 visibleRect, orientation, direction);
 110                                 }
 111                         };
 112
 113                 list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 114                 list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
 115                 list.setVisibleRowCount(-1);
 116                 list.addMouseListener(new MouseAdapter() {
 117                                  public void mouseClicked(MouseEvent e) {
 118                                          if (e.getClickCount() == 2) {
 119                                                  select_button.doClick(); //emulate button click
 120                                          }
 121                                  }
 122                         });
 123                 JScrollPane listScroller = new JScrollPane(list);
 124                 listScroller.setPreferredSize(new Dimension(400, 80));
 125                 listScroller.setAlignmentX(LEFT_ALIGNMENT);
 126
 127                 //Create a container so that we can add a title around
 128                 //the scroll pane.  Can't add a title directly to the
 129                 //scroll pane because its background would be white.
 130                 //Lay out the label and scroll pane from top to bottom.
 131                 JPanel listPane = new JPanel();
 132                 listPane.setLayout(new BoxLayout(listPane, BoxLayout.PAGE_AXIS));
 133
 134                 JLabel label = new JLabel("Select Device");
 135                 label.setLabelFor(list);
 136                 listPane.add(label);
 137                 listPane.add(Box.createRigidArea(new Dimension(0,5)));
 138                 listPane.add(listScroller);
 139                 listPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
 140
 141                 //Lay out the buttons from left to right.
 142                 JPanel buttonPane = new JPanel();
 143                 buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.LINE_AXIS));
 144                 buttonPane.setBorder(BorderFactory.createEmptyBorder(0, 10, 10, 10));
 145                 buttonPane.add(Box.createHorizontalGlue());
 146                 buttonPane.add(cancel_button);
 147                 buttonPane.add(Box.createRigidArea(new Dimension(10, 0)));
 148                 buttonPane.add(manage_bluetooth_button);
 149                 buttonPane.add(Box.createRigidArea(new Dimension(10, 0)));
 150                 buttonPane.add(select_button);
 151
 152                 //Put everything together, using the content pane's BorderLayout.
 153                 Container contentPane = getContentPane();
 154                 contentPane.add(listPane, BorderLayout.CENTER);
 155                 contentPane.add(buttonPane, BorderLayout.PAGE_END);
 156
 157                 //Initialize values.
 158                 if (devices != null && devices.length != 0)
 159                         list.setSelectedValue(devices[0], true);
 160                 pack();
 161                 setLocationRelativeTo(location);
 162         }
 163
 164         //Handle clicks on the Set and Cancel buttons.
 165         public void actionPerformed(ActionEvent e) {
 166                 if ("select".equals(e.getActionCommand()))
 167                         value = (AltosDevice)(list.getSelectedValue());
 168                 if ("manage".equals(e.getActionCommand())) {
 169                         AltosBTManage.show(frame, AltosBTKnown.bt_known());
 170                         update_devices();
 171                         return;
 172                 }
 173                 setVisible(false);
 174         }
 175
 176         public static AltosDevice show (Component frameComp, int product) {
 177
 178                 Frame                           frame = JOptionPane.getFrameForComponent(frameComp);
 179                 AltosDeviceDialog       dialog;
 180
 181                 dialog = new AltosDeviceDialog(frame, frameComp, product);
 182                 dialog.setVisible(true);
 183                 return dialog.getValue();
 184         }
 185 }