1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.dialogs.changeset;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.awt.BorderLayout;
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7 | import java.awt.Component;
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8 | import java.awt.FlowLayout;
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9 | import java.awt.Rectangle;
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10 | import java.awt.event.ActionEvent;
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11 | import java.beans.PropertyChangeEvent;
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12 | import java.beans.PropertyChangeListener;
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13 | import java.util.Collections;
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14 |
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15 | import javax.swing.AbstractAction;
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16 | import javax.swing.BorderFactory;
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17 | import javax.swing.JPanel;
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18 | import javax.swing.JScrollPane;
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19 | import javax.swing.JTable;
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20 | import javax.swing.JToolBar;
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21 |
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22 | import org.openstreetmap.josm.Main;
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23 | import org.openstreetmap.josm.data.osm.Changeset;
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24 | import org.openstreetmap.josm.io.OnlineResource;
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25 |
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26 | /**
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27 | * The panel which displays the public discussion around a changeset in a scrollable table.
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28 | *
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29 | * It listens to property change events for {@link ChangesetCacheManagerModel#CHANGESET_IN_DETAIL_VIEW_PROP}
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30 | * and updates its view accordingly.
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31 | *
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32 | * @since 7704
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33 | */
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34 | public class ChangesetDiscussionPanel extends JPanel implements PropertyChangeListener {
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35 |
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36 | private final UpdateChangesetDiscussionAction actUpdateChangesets = new UpdateChangesetDiscussionAction();
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37 |
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38 | private final ChangesetDiscussionTableModel model = new ChangesetDiscussionTableModel();
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39 |
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40 | private JTable table;
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41 |
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42 | private transient Changeset current = null;
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43 |
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44 | protected JPanel buildActionButtonPanel() {
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45 | JPanel pnl = new JPanel(new FlowLayout(FlowLayout.LEFT));
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46 |
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47 | JToolBar tb = new JToolBar(JToolBar.VERTICAL);
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48 | tb.setFloatable(false);
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49 |
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50 | // -- changeset discussion update
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51 | tb.add(actUpdateChangesets);
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52 | actUpdateChangesets.initProperties(current);
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53 |
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54 | pnl.add(tb);
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55 | return pnl;
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56 | }
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57 |
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58 | /**
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59 | * Updates the current changeset discussion from the OSM server
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60 | */
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61 | class UpdateChangesetDiscussionAction extends AbstractAction {
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62 | UpdateChangesetDiscussionAction() {
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63 | putValue(NAME, tr("Update changeset discussion"));
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64 | putValue(SMALL_ICON, ChangesetCacheManager.UPDATE_CONTENT_ICON);
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65 | putValue(SHORT_DESCRIPTION, tr("Update the changeset discussion from the OSM server"));
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66 | }
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67 |
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68 | @Override
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69 | public void actionPerformed(ActionEvent evt) {
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70 | if (current == null) return;
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71 | Main.worker.submit(
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72 | new ChangesetHeaderDownloadTask(
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73 | ChangesetDiscussionPanel.this,
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74 | Collections.singleton(current.getId()),
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75 | true /* include discussion */
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76 | )
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77 | );
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78 | }
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79 |
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80 | public void initProperties(Changeset cs) {
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81 | setEnabled(cs != null && !Main.isOffline(OnlineResource.OSM_API));
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82 | }
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83 | }
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84 |
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85 | /**
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86 | * Constructs a new {@code ChangesetDiscussionPanel}.
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87 | */
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88 | public ChangesetDiscussionPanel() {
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89 | build();
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90 | }
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91 |
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92 | protected void setCurrentChangeset(Changeset cs) {
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93 | current = cs;
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94 | if (cs == null) {
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95 | clearView();
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96 | } else {
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97 | updateView(cs);
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98 | }
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99 | actUpdateChangesets.initProperties(current);
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100 | if (cs != null && cs.getDiscussion().size() < cs.getCommentsCount()) {
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101 | actUpdateChangesets.actionPerformed(null);
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102 | }
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103 | }
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104 |
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105 | protected final void build() {
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106 | setLayout(new BorderLayout());
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107 | setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));
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108 | add(buildActionButtonPanel(), BorderLayout.WEST);
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109 | add(buildDiscussionPanel(), BorderLayout.CENTER);
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110 | }
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111 |
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112 | private Component buildDiscussionPanel() {
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113 | JPanel pnl = new JPanel(new BorderLayout());
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114 | table = new JTable(model, new ChangesetDiscussionTableColumnModel());
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115 | table.getColumnModel().getColumn(2).addPropertyChangeListener(new PropertyChangeListener() {
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116 | @Override
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117 | public void propertyChange(PropertyChangeEvent evt) {
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118 | if ("width".equals(evt.getPropertyName())) {
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119 | updateRowHeights();
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120 | }
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121 | }
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122 | });
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123 | pnl.add(new JScrollPane(table), BorderLayout.CENTER);
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124 | return pnl;
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125 | }
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126 |
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127 | protected void clearView() {
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128 | model.populate(null);
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129 | }
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130 |
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131 | protected void updateView(Changeset cs) {
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132 | model.populate(cs.getDiscussion());
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133 | updateRowHeights();
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134 | }
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135 |
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136 | protected void updateRowHeights() {
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137 | int intercellWidth = table.getIntercellSpacing().width;
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138 | int colWidth = table.getColumnModel().getColumn(2).getWidth();
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139 | // Update row heights
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140 | for (int row = 0; row < table.getRowCount(); row++) {
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141 | int rowHeight = table.getRowHeight();
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142 |
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143 | Component comp = table.prepareRenderer(table.getCellRenderer(row, 2), row, 2);
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144 | // constrain width of component
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145 | comp.setBounds(new Rectangle(0, 0, colWidth - intercellWidth, Integer.MAX_VALUE));
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146 | rowHeight = Math.max(rowHeight, comp.getPreferredSize().height);
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147 |
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148 | table.setRowHeight(row, rowHeight);
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149 | }
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150 | }
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151 |
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152 | /* ---------------------------------------------------------------------------- */
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153 | /* interface PropertyChangeListener */
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154 | /* ---------------------------------------------------------------------------- */
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155 | @Override
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156 | public void propertyChange(PropertyChangeEvent evt) {
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157 | if (!evt.getPropertyName().equals(ChangesetCacheManagerModel.CHANGESET_IN_DETAIL_VIEW_PROP))
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158 | return;
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159 | setCurrentChangeset((Changeset) evt.getNewValue());
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160 | }
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161 | }
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