| 1 | // Copyright 2004-2007 Jean-Francois Poilpret |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package net.sourceforge.hiveboard.dialog; |
| 16 | |
| 17 | import java.awt.Color; |
| 18 | import java.awt.Dimension; |
| 19 | import java.awt.GridBagConstraints; |
| 20 | import java.awt.GridBagLayout; |
| 21 | import java.awt.Image; |
| 22 | import java.awt.Insets; |
| 23 | import java.util.HashMap; |
| 24 | import java.util.Map; |
| 25 | |
| 26 | import javax.swing.Icon; |
| 27 | import javax.swing.JScrollPane; |
| 28 | import javax.swing.border.LineBorder; |
| 29 | |
| 30 | import org.jdesktop.application.Action; |
| 31 | import org.jdesktop.application.Task; |
| 32 | |
| 33 | import net.sourceforge.hiveboard.Board; |
| 34 | import net.sourceforge.hiveboard.Snapshot; |
| 35 | import net.sourceforge.hiveboard.WhiteBoardUserService; |
| 36 | import net.sourceforge.hiveboard.command.AbstractTask; |
| 37 | import net.sourceforge.hiveboard.command.ActionHelper; |
| 38 | import net.sourceforge.hiveboard.event.EventsPriorities; |
| 39 | import net.sourceforge.hiveboard.util.RGBImageHolder; |
| 40 | import net.sourceforge.hiveevents.PersistentConsumer; |
| 41 | import net.sourceforge.hivegui.application.ApplicationContextHolder; |
| 42 | import net.sourceforge.hivegui.component.Thumbnail; |
| 43 | import net.sourceforge.hivegui.table.BeanTable; |
| 44 | import net.sourceforge.hivegui.table.DefaultDataListModel; |
| 45 | import net.sourceforge.hivegui.table.TableContribution; |
| 46 | |
| 47 | // CSOFF: ClassDataAbstractionCouplingCheck |
| 48 | public class ListSnapshotsPanel extends AbstractBoardPanel |
| 49 | { |
| 50 | static private final String NAME = "snapshots-list"; |
| 51 | |
| 52 | public ListSnapshotsPanel( TableContribution snapshotsTableContrib, |
| 53 | WhiteBoardUserService service, |
| 54 | ApplicationContextHolder holder, |
| 55 | Board board, |
| 56 | Snapshot[] snapshots) |
| 57 | { |
| 58 | super(NAME); |
| 59 | setLayout(new GridBagLayout()); |
| 60 | _board = board; |
| 61 | _service = service; |
| 62 | |
| 63 | DefaultDataListModel<Snapshot> model = |
| 64 | new DefaultDataListModel<Snapshot>(Snapshot.class); |
| 65 | model.setRows(snapshots); |
| 66 | _tblSnapshots = new BeanTable<Snapshot>(model, snapshotsTableContrib, holder); |
| 67 | _tblSnapshots.setName(NAME + "-snapshots-list"); |
| 68 | _tblSnapshots.setPreferredScrollableViewportSize( |
| 69 | new Dimension(VIEWPORT_SIZE, VIEWPORT_SIZE)); |
| 70 | |
| 71 | GridBagConstraints constraints; |
| 72 | constraints = new GridBagConstraints( 0, 0, 1, 1, 1.0, 1.0, |
| 73 | GridBagConstraints.WEST, |
| 74 | GridBagConstraints.BOTH, |
| 75 | new Insets(2, 2, 2, 2), 0, 0); |
| 76 | |
| 77 | add(new JScrollPane(_tblSnapshots), constraints); |
| 78 | _thumbnail.setName(NAME + "-thumbnail"); |
| 79 | _thumbnail.setBorder(new LineBorder(Color.GRAY)); |
| 80 | |
| 81 | constraints.gridx = 1; |
| 82 | constraints.weightx = 0.0; |
| 83 | constraints.weighty = 0.0; |
| 84 | constraints.fill = GridBagConstraints.NONE; |
| 85 | add(_thumbnail, constraints); |
| 86 | |
| 87 | _tblSnapshots.clearSelection(); |
| 88 | int priority = EventsPriorities.DEFAULT_PRIORITY; |
| 89 | _tblSnapshots.addSelectionConsumer(priority, new PersistentConsumer() |
| 90 | { |
| 91 | public void push(Object event) |
| 92 | { |
| 93 | if (event != null) |
| 94 | { |
| 95 | setAcceptEnabled(true); |
| 96 | _snapshot = (Snapshot) event; |
| 97 | updateSnapshot(_snapshot.getId()); |
| 98 | } |
| 99 | else |
| 100 | { |
| 101 | setAcceptEnabled(false); |
| 102 | _currentId = -1; |
| 103 | _current = null; |
| 104 | _snapshot = null; |
| 105 | _thumbnail.setIcon((Icon) null); |
| 106 | } |
| 107 | } |
| 108 | }); |
| 109 | } |
| 110 | |
| 111 | @Override public void reset() |
| 112 | { |
| 113 | setAcceptEnabled(false); |
| 114 | _tblSnapshots.setDoubleClickCommand(getAction("accept")); |
| 115 | } |
| 116 | |
| 117 | private void updateSnapshot(int idSnapshot) |
| 118 | { |
| 119 | _currentId = idSnapshot; |
| 120 | Icon icon = _cache.get(_currentId); |
| 121 | _current = null; |
| 122 | if (icon != null) |
| 123 | { |
| 124 | _thumbnail.setIcon(icon); |
| 125 | } |
| 126 | else |
| 127 | { |
| 128 | // Get loadThumbnail action and execute it asynchroneously |
| 129 | ActionHelper.execute(getAction("loadThumbnail"), this); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | private void updateCurrentImage() |
| 134 | { |
| 135 | byte[] content = _service.getSnapshot(_currentId); |
| 136 | RGBImageHolder holder = new RGBImageHolder(); |
| 137 | holder.setImage(_board.getWidth(), _board.getHeight(), content); |
| 138 | _current = holder.getImage(); |
| 139 | } |
| 140 | |
| 141 | @Action |
| 142 | public Task loadThumbnail() |
| 143 | { |
| 144 | return new AbstractThumbnailLoadTask() |
| 145 | { |
| 146 | @Override protected void succeeded(Void result) |
| 147 | { |
| 148 | updateCurrentImage(); |
| 149 | _thumbnail.setIcon(_current); |
| 150 | Icon icon = _thumbnail.getThumbnailIcon(); |
| 151 | _cache.put(_currentId, icon); |
| 152 | _thumbnail.setIcon(icon); |
| 153 | } |
| 154 | }; |
| 155 | } |
| 156 | |
| 157 | @Action(enabledProperty = "acceptEnabled", block = Task.BlockingScope.ACTION) |
| 158 | public Task accept() |
| 159 | { |
| 160 | if (_current != null) |
| 161 | { |
| 162 | // Now _current contains the full-size image |
| 163 | SnapshotDetailPanel detail = new SnapshotDetailPanel(_board, _snapshot, _current); |
| 164 | // Open new dialog to display image in real size |
| 165 | _application.showDialog(detail); |
| 166 | return null; |
| 167 | } |
| 168 | |
| 169 | return new AbstractThumbnailLoadTask() |
| 170 | { |
| 171 | @Override protected void succeeded(Void result) |
| 172 | { |
| 173 | // Now _current contains the full-size image |
| 174 | SnapshotDetailPanel detail = |
| 175 | new SnapshotDetailPanel(_board, _snapshot, _current); |
| 176 | // Open new dialog to display image in real size |
| 177 | _application.showDialog(detail); |
| 178 | } |
| 179 | }; |
| 180 | } |
| 181 | |
| 182 | abstract private class AbstractThumbnailLoadTask extends AbstractTask<Void, Void> |
| 183 | { |
| 184 | protected AbstractThumbnailLoadTask() |
| 185 | { |
| 186 | super(ListSnapshotsPanel.this._application, _parent); |
| 187 | } |
| 188 | |
| 189 | @Override protected Void doInBackground() throws Exception |
| 190 | { |
| 191 | updateCurrentImage(); |
| 192 | return null; |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | static final private int THUMBNAIL_SIZE = 200; |
| 197 | static final private int VIEWPORT_SIZE = 300; |
| 198 | |
| 199 | private final Map<Integer, Icon> _cache = new HashMap<Integer, Icon>(); |
| 200 | private final WhiteBoardUserService _service; |
| 201 | private final BeanTable<Snapshot> _tblSnapshots; |
| 202 | private final Thumbnail _thumbnail = new Thumbnail(THUMBNAIL_SIZE); |
| 203 | private int _currentId; |
| 204 | private Snapshot _snapshot; |
| 205 | private Image _current; |
| 206 | } |
| 207 | // CSON: ClassDataAbstractionCouplingCheck |