git.gag.com Git - fw/altos/blob - altosuilib/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 org.altusmetrum.altosuilib_1;
  19
  20 import javax.swing.*;
  21 import java.awt.*;
  22 import java.awt.event.*;
  23
  24 public abstract class AltosDeviceDialog extends AltosUIDialog implements ActionListener {
  25
  26         private AltosDevice     value;
  27         private JList           list;
  28         private JButton         cancel_button;
  29         private JButton         select_button;
  30         public Frame            frame;
  31         public int              product;
  32         public JPanel           buttonPane;
  33
  34         public AltosDevice getValue() {
  35                 return value;
  36         }
  37
  38         public abstract AltosDevice[] devices();
  39
  40         public void update_devices() {
  41                 AltosDevice[] devices = devices();
  42                 list.setListData(devices);
  43                 select_button.setEnabled(devices.length > 0);
  44         }
  45
  46         public void add_bluetooth() { }
  47
  48         public AltosDeviceDialog (Frame in_frame, Component location, int in_product) {
  49                 super(in_frame, "Device Selection", true);
  50
  51                 product = in_product;
  52                 frame = in_frame;
  53                 value = null;
  54
  55                 AltosDevice[]   devices = devices();
  56
  57                 cancel_button = new JButton("Cancel");
  58                 cancel_button.setActionCommand("cancel");
  59                 cancel_button.addActionListener(this);
  60
  61                 select_button = new JButton("Select");
  62                 select_button.setActionCommand("select");
  63                 select_button.addActionListener(this);
  64                 if (devices.length == 0)
  65                         select_button.setEnabled(false);
  66                 getRootPane().setDefaultButton(select_button);
  67
  68                 list = new JList(devices) {
  69                                 //Subclass JList to workaround bug 4832765, which can cause the
  70                                 //scroll pane to not let the user easily scroll up to the beginning
  71                                 //of the list.  An alternative would be to set the unitIncrement
  72                                 //of the JScrollBar to a fixed value. You wouldn't get the nice
  73                                 //aligned scrolling, but it should work.
  74                                 public int getScrollableUnitIncrement(Rectangle visibleRect,
  75                                                                       int orientation,
  76                                                                       int direction) {
  77                                         int row;
  78                                         if (orientation == SwingConstants.VERTICAL &&
  79                                             direction < 0 && (row = getFirstVisibleIndex()) != -1) {
  80                                                 Rectangle r = getCellBounds(row, row);
  81                                                 if ((r.y == visibleRect.y) && (row != 0))  {
  82                                                         Point loc = r.getLocation();
  83                                                         loc.y--;
  84                                                         int prevIndex = locationToIndex(loc);
  85                                                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
  86
  87                                                         if (prevR == null || prevR.y >= r.y) {
  88                                                                 return 0;
  89                                                         }
  90                                                         return prevR.height;
  91                                                 }
  92                                         }
  93                                         return super.getScrollableUnitIncrement(
  94                                                 visibleRect, orientation, direction);
  95                                 }
  96                         };
  97
  98                 list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
  99                 list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
 100                 list.setVisibleRowCount(-1);
 101                 list.addMouseListener(new MouseAdapter() {
 102                                  public void mouseClicked(MouseEvent e) {
 103                                          if (e.getClickCount() == 2) {
 104                                                  select_button.doClick(); //emulate button click
 105                                          }
 106                                  }
 107                         });
 108                 JScrollPane listScroller = new JScrollPane(list);
 109                 listScroller.setPreferredSize(new Dimension(400, 80));
 110                 listScroller.setAlignmentX(LEFT_ALIGNMENT);
 111
 112                 //Create a container so that we can add a title around
 113                 //the scroll pane.  Can't add a title directly to the
 114                 //scroll pane because its background would be white.
 115                 //Lay out the label and scroll pane from top to bottom.
 116                 JPanel listPane = new JPanel();
 117                 listPane.setLayout(new BoxLayout(listPane, BoxLayout.PAGE_AXIS));
 118
 119                 JLabel label = new JLabel("Select Device");
 120                 label.setLabelFor(list);
 121                 listPane.add(label);
 122                 listPane.add(Box.createRigidArea(new Dimension(0,5)));
 123                 listPane.add(listScroller);
 124                 listPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
 125
 126                 //Lay out the buttons from left to right.
 127                 buttonPane = new JPanel();
 128                 buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.LINE_AXIS));
 129                 buttonPane.setBorder(BorderFactory.createEmptyBorder(0, 10, 10, 10));
 130                 buttonPane.add(Box.createHorizontalGlue());
 131                 buttonPane.add(cancel_button);
 132                 buttonPane.add(Box.createRigidArea(new Dimension(10, 0)));
 133
 134                 add_bluetooth();
 135
 136                 buttonPane.add(select_button);
 137
 138                 //Put everything together, using the content pane's BorderLayout.
 139                 Container contentPane = getContentPane();
 140                 contentPane.add(listPane, BorderLayout.CENTER);
 141                 contentPane.add(buttonPane, BorderLayout.PAGE_END);
 142
 143                 //Initialize values.
 144                 if (devices != null && devices.length != 0)
 145                         list.setSelectedValue(devices[0], true);
 146                 pack();
 147                 setLocationRelativeTo(location);
 148         }
 149
 150         //Handle clicks on the Set and Cancel buttons.
 151         public void actionPerformed(ActionEvent e) {
 152                 if ("select".equals(e.getActionCommand())) {
 153                         value = (AltosDevice)(list.getSelectedValue());
 154                         setVisible(false);
 155                 }
 156                 if ("cancel".equals(e.getActionCommand()))
 157                         setVisible(false);
 158         }
 159
 160 }