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; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 package org.altusmetrum.altosuilib_12;
  20
  21 import javax.swing.*;
  22 import java.awt.*;
  23 import java.awt.event.*;
  24
  25 public abstract class AltosDeviceDialog extends AltosUIDialog implements ActionListener {
  26
  27         private AltosDevice             value;
  28         private JList<AltosDevice>      list;
  29         private JButton                 cancel_button;
  30         private JButton                 select_button;
  31         public Frame                    frame;
  32         public int                      product;
  33         public JPanel                   buttonPane;
  34
  35         public AltosDevice getValue() {
  36                 return value;
  37         }
  38
  39         public abstract AltosDevice[] devices();
  40
  41         public void update_devices() {
  42                 AltosDevice[] devices = devices();
  43                 list.setListData(devices);
  44                 select_button.setEnabled(devices.length > 0);
  45         }
  46
  47         public void add_bluetooth() { }
  48
  49         public AltosDeviceDialog (Frame in_frame, Component location, int in_product) {
  50                 super(in_frame, "Device Selection", true);
  51
  52                 product = in_product;
  53                 frame = in_frame;
  54                 value = null;
  55
  56                 AltosDevice[]   devices = devices();
  57
  58                 cancel_button = new JButton("Cancel");
  59                 cancel_button.setActionCommand("cancel");
  60                 cancel_button.addActionListener(this);
  61
  62                 select_button = new JButton("Select");
  63                 select_button.setActionCommand("select");
  64                 select_button.addActionListener(this);
  65                 if (devices.length == 0)
  66                         select_button.setEnabled(false);
  67                 getRootPane().setDefaultButton(select_button);
  68
  69                 list = new JList<AltosDevice>(devices) {
  70                                 //Subclass JList to workaround bug 4832765, which can cause the
  71                                 //scroll pane to not let the user easily scroll up to the beginning
  72                                 //of the list.  An alternative would be to set the unitIncrement
  73                                 //of the JScrollBar to a fixed value. You wouldn't get the nice
  74                                 //aligned scrolling, but it should work.
  75                                 public int getScrollableUnitIncrement(Rectangle visibleRect,
  76                                                                       int orientation,
  77                                                                       int direction) {
  78                                         int row;
  79                                         if (orientation == SwingConstants.VERTICAL &&
  80                                             direction < 0 && (row = getFirstVisibleIndex()) != -1) {
  81                                                 Rectangle r = getCellBounds(row, row);
  82                                                 if ((r.y == visibleRect.y) && (row != 0))  {
  83                                                         Point loc = r.getLocation();
  84                                                         loc.y--;
  85                                                         int prevIndex = locationToIndex(loc);
  86                                                         Rectangle prevR = getCellBounds(prevIndex, prevIndex);
  87
  88                                                         if (prevR == null || prevR.y >= r.y) {
  89                                                                 return 0;
  90                                                         }
  91                                                         return prevR.height;
  92                                                 }
  93                                         }
  94                                         return super.getScrollableUnitIncrement(
  95                                                 visibleRect, orientation, direction);
  96                                 }
  97                         };
  98
  99                 list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 100                 list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
 101                 list.setVisibleRowCount(-1);
 102                 list.addMouseListener(new MouseAdapter() {
 103                                  public void mouseClicked(MouseEvent e) {
 104                                          if (e.getClickCount() == 2) {
 105                                                  select_button.doClick(); //emulate button click
 106                                          }
 107                                  }
 108                         });
 109                 JScrollPane listScroller = new JScrollPane(list);
 110                 listScroller.setPreferredSize(new Dimension(400, 80));
 111                 listScroller.setAlignmentX(LEFT_ALIGNMENT);
 112
 113                 //Create a container so that we can add a title around
 114                 //the scroll pane.  Can't add a title directly to the
 115                 //scroll pane because its background would be white.
 116                 //Lay out the label and scroll pane from top to bottom.
 117                 JPanel listPane = new JPanel();
 118                 listPane.setLayout(new BoxLayout(listPane, BoxLayout.PAGE_AXIS));
 119
 120                 JLabel label = new JLabel("Select Device");
 121                 label.setLabelFor(list);
 122                 listPane.add(label);
 123                 listPane.add(Box.createRigidArea(new Dimension(0,5)));
 124                 listPane.add(listScroller);
 125                 listPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
 126
 127                 //Lay out the buttons from left to right.
 128                 buttonPane = new JPanel();
 129                 buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.LINE_AXIS));
 130                 buttonPane.setBorder(BorderFactory.createEmptyBorder(0, 10, 10, 10));
 131                 buttonPane.add(Box.createHorizontalGlue());
 132                 buttonPane.add(cancel_button);
 133                 buttonPane.add(Box.createRigidArea(new Dimension(10, 0)));
 134
 135                 if (AltosUILib.has_bluetooth)
 136                         add_bluetooth();
 137
 138                 buttonPane.add(select_button);
 139
 140                 //Put everything together, using the content pane's BorderLayout.
 141                 Container contentPane = getContentPane();
 142                 contentPane.add(listPane, BorderLayout.CENTER);
 143                 contentPane.add(buttonPane, BorderLayout.PAGE_END);
 144
 145                 //Initialize values.
 146                 if (devices != null && devices.length != 0)
 147                         list.setSelectedValue(devices[0], true);
 148                 pack();
 149                 setLocationRelativeTo(location);
 150         }
 151
 152         //Handle clicks on the Set and Cancel buttons.
 153         public void actionPerformed(ActionEvent e) {
 154                 if ("select".equals(e.getActionCommand())) {
 155                         value = (AltosDevice)(list.getSelectedValue());
 156                         setVisible(false);
 157                 }
 158                 if ("cancel".equals(e.getActionCommand()))
 159                         setVisible(false);
 160         }
 161
 162 }