1 | package org.openstreetmap.josm.gui.dialogs;
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2 |
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3 | import static org.openstreetmap.josm.tools.I18n.tr;
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4 |
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5 | import java.awt.BorderLayout;
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6 | import java.awt.Component;
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7 | import java.awt.GridLayout;
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8 | import java.awt.Point;
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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.awt.event.KeyEvent;
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12 | import java.awt.event.MouseAdapter;
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13 | import java.awt.event.MouseEvent;
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14 | import java.beans.PropertyChangeEvent;
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15 | import java.beans.PropertyChangeListener;
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16 | import java.util.ArrayList;
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17 | import java.util.Collections;
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18 | import java.util.List;
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19 | import java.util.concurrent.CopyOnWriteArrayList;
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20 |
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21 | import javax.swing.AbstractAction;
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22 | import javax.swing.DefaultListCellRenderer;
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23 | import javax.swing.DefaultListModel;
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24 | import javax.swing.DefaultListSelectionModel;
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25 | import javax.swing.Icon;
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26 | import javax.swing.JComponent;
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27 | import javax.swing.JLabel;
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28 | import javax.swing.JList;
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29 | import javax.swing.JPanel;
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30 | import javax.swing.JScrollPane;
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31 | import javax.swing.KeyStroke;
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32 | import javax.swing.ListModel;
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33 | import javax.swing.ListSelectionModel;
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34 | import javax.swing.UIManager;
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35 | import javax.swing.event.ListDataEvent;
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36 | import javax.swing.event.ListDataListener;
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37 | import javax.swing.event.ListSelectionEvent;
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38 | import javax.swing.event.ListSelectionListener;
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39 |
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40 | import org.openstreetmap.josm.Main;
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41 | import org.openstreetmap.josm.actions.MergeLayerAction;
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42 | import org.openstreetmap.josm.gui.MapFrame;
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43 | import org.openstreetmap.josm.gui.MapView;
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44 | import org.openstreetmap.josm.gui.SideButton;
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45 | import org.openstreetmap.josm.gui.MapView.LayerChangeListener;
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46 | import org.openstreetmap.josm.gui.io.SaveLayersDialog;
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47 | import org.openstreetmap.josm.gui.layer.Layer;
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48 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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49 | import org.openstreetmap.josm.tools.ImageProvider;
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50 | import org.openstreetmap.josm.tools.Shortcut;
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51 | import org.openstreetmap.josm.tools.ImageProvider.OverlayPosition;
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52 |
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53 | /**
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54 | * This is a toggle dialog which displays the list of layers. Actions allow to
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55 | * change the ordering of the layers, to hide/show layers, to activate layers,
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56 | * and to delete layers.
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57 | *
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58 | */
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59 | public class LayerListDialog extends ToggleDialog {
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60 | //static private final Logger logger = Logger.getLogger(LayerListDialog.class.getName());
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61 |
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62 | /** the unique instance of the dialog */
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63 | static private LayerListDialog instance;
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64 |
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65 | /**
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66 | * Creates the instance of the dialog. It's connected to the map frame <code>mapFrame</code>
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67 | *
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68 | * @param mapFrame the map frame
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69 | */
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70 | static public void createInstance(MapFrame mapFrame) {
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71 | instance = new LayerListDialog(mapFrame);
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72 | }
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73 |
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74 | /**
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75 | * Replies the instance of the dialog
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76 | *
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77 | * @return the instance of the dialog
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78 | * @throws IllegalStateException thrown, if the dialog is not created yet
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79 | * @see #createInstance(MapFrame)
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80 | */
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81 | static public LayerListDialog getInstance() throws IllegalStateException {
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82 | if (instance == null)
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83 | throw new IllegalStateException(tr("Dialog not created yet. Invoke createInstance() first"));
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84 | return instance;
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85 | }
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86 |
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87 | /** the model for the layer list */
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88 | private LayerListModel model;
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89 |
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90 | /** the selection model */
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91 | private DefaultListSelectionModel selectionModel;
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92 |
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93 | /** the list of layers */
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94 | private LayerList layerList;
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95 |
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96 | ActivateLayerAction activateLayerAction;
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97 |
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98 | protected JPanel createButtonPanel() {
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99 | JPanel buttonPanel = new JPanel(new GridLayout(1, 5));
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100 |
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101 | // -- move up action
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102 | MoveUpAction moveUpAction = new MoveUpAction();
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103 | adaptTo(moveUpAction, model);
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104 | adaptTo(moveUpAction,selectionModel);
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105 | buttonPanel.add(new SideButton(moveUpAction));
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106 |
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107 | // -- move down action
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108 | MoveDownAction moveDownAction = new MoveDownAction();
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109 | adaptTo(moveDownAction, model);
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110 | adaptTo(moveDownAction,selectionModel);
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111 | buttonPanel.add(new SideButton(moveDownAction));
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112 |
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113 | // -- activate action
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114 | activateLayerAction = new ActivateLayerAction();
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115 | adaptTo(activateLayerAction, selectionModel);
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116 | MapView.addLayerChangeListener(activateLayerAction);
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117 | buttonPanel.add(new SideButton(activateLayerAction, "activate"));
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118 |
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119 | // -- show hide action
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120 | ShowHideLayerAction showHideLayerAction = new ShowHideLayerAction();
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121 | adaptTo(showHideLayerAction, selectionModel);
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122 | buttonPanel.add(new SideButton(showHideLayerAction, "showhide"));
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123 |
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124 | // -- merge layer action
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125 | MergeAction mergeLayerAction = new MergeAction();
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126 | adaptTo(mergeLayerAction, model);
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127 | adaptTo(mergeLayerAction,selectionModel);
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128 | buttonPanel.add(new SideButton(mergeLayerAction));
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129 |
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130 | //-- delete layer action
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131 | DeleteLayerAction deleteLayerAction = new DeleteLayerAction();
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132 | layerList.getInputMap(JComponent.WHEN_FOCUSED).put(
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133 | KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0),"deleteLayer"
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134 | );
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135 | layerList.getActionMap().put("deleteLayer", deleteLayerAction);
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136 | adaptTo(deleteLayerAction, selectionModel);
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137 | buttonPanel.add(new SideButton(deleteLayerAction, "delete"));
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138 |
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139 | return buttonPanel;
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140 | }
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141 |
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142 | /**
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143 | * Create an layer list and attach it to the given mapView.
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144 | */
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145 | protected LayerListDialog(MapFrame mapFrame) {
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146 | super(tr("Layers"), "layerlist", tr("Open a list of all loaded layers."),
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147 | Shortcut.registerShortcut("subwindow:layers", tr("Toggle: {0}", tr("Layers")), KeyEvent.VK_L, Shortcut.GROUP_LAYER), 100, true);
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148 |
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149 | // create the models
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150 | //
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151 | selectionModel = new DefaultListSelectionModel();
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152 | selectionModel.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
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153 | model = new LayerListModel(selectionModel);
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154 | MapView.addLayerChangeListener(model);
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155 |
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156 | // create the list control
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157 | //
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158 | layerList = new LayerList(model);
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159 | layerList.setSelectionModel(selectionModel);
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160 | layerList.addMouseListener(new LayerListMouseAdapter());
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161 | layerList.setBackground(UIManager.getColor("Button.background"));
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162 | layerList.setCellRenderer(new LayerListCellRenderer());
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163 | add(new JScrollPane(layerList), BorderLayout.CENTER);
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164 |
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165 | // init the model
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166 | //
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167 | final MapView mapView = mapFrame.mapView;
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168 | model.populate();
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169 | model.setSelectedLayer(mapView.getActiveLayer());
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170 | model.addLayerListModelListener(
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171 | new LayerListModelListener() {
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172 | public void makeVisible(int index, Layer layer) {
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173 | layerList.ensureIndexIsVisible(index);
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174 | }
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175 |
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176 | public void refresh() {
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177 | layerList.repaint();
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178 | }
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179 | }
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180 | );
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181 |
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182 | add(createButtonPanel(), BorderLayout.SOUTH);
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183 | }
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184 |
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185 | @Override
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186 | public void tearDown() {
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187 | MapView.removeLayerChangeListener(model);
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188 | MapView.removeLayerChangeListener(activateLayerAction);
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189 | }
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190 |
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191 | public LayerListModel getModel() {
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192 | return model;
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193 | }
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194 |
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195 | private interface IEnabledStateUpdating {
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196 | void updateEnabledState();
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197 | }
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198 |
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199 | /**
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200 | * Wires <code>listener</code> to <code>listSelectionModel</code> in such a way, that
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201 | * <code>listener</code> receives a {@see IEnabledStateUpdating#updateEnabledState()}
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202 | * on every {@see ListSelectionEvent}.
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203 | *
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204 | * @param listener the listener
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205 | * @param listSelectionModel the source emitting {@see ListSelectionEvent}s
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206 | */
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207 | protected void adaptTo(final IEnabledStateUpdating listener, ListSelectionModel listSelectionModel) {
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208 | listSelectionModel.addListSelectionListener(
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209 | new ListSelectionListener() {
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210 | public void valueChanged(ListSelectionEvent e) {
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211 | listener.updateEnabledState();
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212 | }
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213 | }
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214 | );
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215 | }
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216 |
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217 | /**
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218 | * Wires <code>listener</code> to <code>listModel</code> in such a way, that
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219 | * <code>listener</code> receives a {@see IEnabledStateUpdating#updateEnabledState()}
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220 | * on every {@see ListDataEvent}.
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221 | *
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222 | * @param listener the listener
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223 | * @param listSelectionModel the source emitting {@see ListDataEvent}s
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224 | */
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225 | protected void adaptTo(final IEnabledStateUpdating listener, ListModel listModel) {
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226 | listModel.addListDataListener(
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227 | new ListDataListener() {
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228 | public void contentsChanged(ListDataEvent e) {
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229 | listener.updateEnabledState();
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230 | }
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231 |
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232 | public void intervalAdded(ListDataEvent e) {
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233 | listener.updateEnabledState();
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234 | }
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235 |
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236 | public void intervalRemoved(ListDataEvent e) {
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237 | listener.updateEnabledState();
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238 | }
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239 | }
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240 | );
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241 | }
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242 |
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243 | /**
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244 | * The action to delete the currently selected layer
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245 | */
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246 | public final class DeleteLayerAction extends AbstractAction implements IEnabledStateUpdating {
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247 | private Layer layer;
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248 |
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249 | /**
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250 | * Creates a {@see DeleteLayerAction} for a specific layer.
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251 | *
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252 | * @param layer the layer. Must not be null.
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253 | * @exception IllegalArgumentException thrown, if layer is null
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254 | */
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255 | public DeleteLayerAction(Layer layer) {
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256 | this();
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257 | if (layer == null)
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258 | throw new IllegalArgumentException(tr("Parameter ''{0}'' must not be null.", "layer"));
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259 | this.layer = layer;
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260 | putValue(NAME, tr("Delete"));
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261 | updateEnabledState();
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262 | }
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263 |
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264 | /**
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265 | * Creates a {@see DeleteLayerAction} which will delete the currently
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266 | * selected layers in the layer dialog.
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267 | *
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268 | */
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269 | public DeleteLayerAction() {
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270 | putValue(SMALL_ICON,ImageProvider.get("dialogs", "delete"));
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271 | putValue(SHORT_DESCRIPTION, tr("Delete the selected layer."));
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272 | putValue("help", "Action/LayerDelete");
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273 | updateEnabledState();
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274 | }
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275 |
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276 | protected boolean enforceUploadOrSaveModifiedData(List<Layer> selectedLayers) {
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277 | SaveLayersDialog dialog = new SaveLayersDialog(Main.parent);
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278 | List<OsmDataLayer> layersWithUnmodifiedChanges = new ArrayList<OsmDataLayer>();
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279 | for (Layer l: selectedLayers) {
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280 | if (! (l instanceof OsmDataLayer)) {
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281 | continue;
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282 | }
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283 | OsmDataLayer odl = (OsmDataLayer)l;
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284 | if ((odl.requiresSaveToFile() || odl.requiresUploadToServer()) && odl.data.isModified()) {
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285 | layersWithUnmodifiedChanges.add(odl);
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286 | }
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287 | }
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288 | dialog.prepareForSavingAndUpdatingLayersBeforeDelete();
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289 | if (!layersWithUnmodifiedChanges.isEmpty()) {
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290 | dialog.getModel().populate(layersWithUnmodifiedChanges);
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291 | dialog.setVisible(true);
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292 | switch(dialog.getUserAction()) {
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293 | case CANCEL: return false;
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294 | case PROCEED: return true;
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295 | default: return false;
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296 | }
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297 | }
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298 | return true;
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299 | }
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300 |
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301 | public void actionPerformed(ActionEvent e) {
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302 | List<Layer> selectedLayers;
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303 | if (this.layer == null) {
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304 | selectedLayers = getModel().getSelectedLayers();
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305 | } else {
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306 | selectedLayers = Collections.singletonList(this.layer);
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307 | }
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308 | if (selectedLayers.isEmpty())
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309 | return;
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310 | if (! enforceUploadOrSaveModifiedData(selectedLayers))
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311 | return;
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312 | for(Layer l: selectedLayers) {
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313 | Main.main.removeLayer(l);
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314 | }
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315 | }
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316 |
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317 | public void updateEnabledState() {
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318 | if (layer == null) {
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319 | setEnabled(! getModel().getSelectedLayers().isEmpty());
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320 | } else {
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321 | setEnabled(true);
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322 | }
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323 | }
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324 | }
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325 |
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326 | public final class ShowHideLayerAction extends AbstractAction implements IEnabledStateUpdating {
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327 | private Layer layer;
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328 |
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329 | /**
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330 | * Creates a {@see ShowHideLayerAction} which toggle the visibility of
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331 | * a specific layer.
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332 | *
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333 | * @param layer the layer. Must not be null.
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334 | * @exception IllegalArgumentException thrown, if layer is null
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335 | */
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336 | public ShowHideLayerAction(Layer layer) throws IllegalArgumentException {
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337 | this();
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338 | if (layer == null)
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339 | throw new IllegalArgumentException(tr("Parameter ''{0}'' must not be null.", "layer"));
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340 | this.layer = layer;
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341 | putValue(NAME, tr("Show/Hide"));
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342 | updateEnabledState();
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343 | }
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344 |
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345 | /**
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346 | * Creates a {@see ShowHideLayerAction} which will toggle the visibility of
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347 | * the currently selected layers
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348 | *
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349 | */
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350 | public ShowHideLayerAction() {
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351 | putValue(SMALL_ICON, ImageProvider.get("dialogs", "showhide"));
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352 | putValue(SHORT_DESCRIPTION, tr("Toggle visible state of the selected layer."));
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353 | putValue("help", "Action/LayerShowHide");
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354 | updateEnabledState();
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355 | }
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356 |
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357 | public void actionPerformed(ActionEvent e) {
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358 | if (layer != null) {
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359 | layer.toggleVisible();
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360 | } else {
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361 | for(Layer layer: model.getSelectedLayers()) {
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362 | layer.toggleVisible();
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363 | }
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364 | }
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365 | }
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366 |
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367 | public void updateEnabledState() {
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368 | if (layer == null) {
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369 | setEnabled(! getModel().getSelectedLayers().isEmpty());
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370 | } else {
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371 | setEnabled(true);
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372 | }
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373 | }
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374 | }
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375 |
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376 | /**
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377 | * The action to activate the currently selected layer
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378 | */
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379 |
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380 | public final class ActivateLayerAction extends AbstractAction implements IEnabledStateUpdating, MapView.LayerChangeListener{
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381 | private Layer layer;
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382 |
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383 | public ActivateLayerAction(Layer layer) throws IllegalArgumentException {
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384 | this();
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385 | if (layer == null)
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386 | throw new IllegalArgumentException(tr("Parameter ''{0}'' must not be null.", "layer"));
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387 | this.layer = layer;
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388 | putValue(NAME, tr("Activate"));
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389 | updateEnabledState();
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390 | }
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391 |
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392 | public ActivateLayerAction() {
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393 | putValue(SMALL_ICON, ImageProvider.get("dialogs", "activate"));
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394 | putValue(SHORT_DESCRIPTION, tr("Activate the selected layer"));
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395 | putValue("help", "Action/ActivateLayer");
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396 | updateEnabledState();
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397 | }
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398 |
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399 | public void actionPerformed(ActionEvent e) {
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400 | Layer toActivate;
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401 | if (layer != null) {
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402 | toActivate = layer;
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403 | } else {
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404 | toActivate = model.getSelectedLayers().get(0);
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405 | }
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406 | // model is going to be updated via LayerChangeListener
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407 | // and PropertyChangeEvents
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408 | Main.map.mapView.setActiveLayer(toActivate);
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409 | toActivate.setVisible(true);
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410 | }
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411 |
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412 | protected boolean isActiveLayer(Layer layer) {
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413 | if (Main.map == null) return false;
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414 | if (Main.map.mapView == null) return false;
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415 | return Main.map.mapView.getActiveLayer() == layer;
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416 | }
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417 |
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418 | public void updateEnabledState() {
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419 | if (layer == null) {
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420 | if (getModel().getSelectedLayers().size() != 1) {
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421 | setEnabled(false);
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422 | return;
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423 | }
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424 | Layer selectedLayer = getModel().getSelectedLayers().get(0);
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425 | setEnabled(!isActiveLayer(selectedLayer));
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426 | } else {
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427 | setEnabled(!isActiveLayer(layer));
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428 | }
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429 | }
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430 |
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431 | public void activeLayerChange(Layer oldLayer, Layer newLayer) {
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432 | updateEnabledState();
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433 | }
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434 | public void layerAdded(Layer newLayer) {
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435 | updateEnabledState();
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436 | }
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437 | public void layerRemoved(Layer oldLayer) {
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438 | updateEnabledState();
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439 | }
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440 | }
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441 |
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442 | /**
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443 | * The action to merge the currently selected layer into another layer.
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444 | */
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445 | public final class MergeAction extends AbstractAction implements IEnabledStateUpdating {
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446 | private Layer layer;
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447 |
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448 | public MergeAction(Layer layer) throws IllegalArgumentException {
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449 | this();
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450 | if (layer == null)
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451 | throw new IllegalArgumentException(tr("Parameter ''{0}'' must not be null.", "layer"));
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452 | this.layer = layer;
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453 | putValue(NAME, tr("Merge"));
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454 | updateEnabledState();
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455 | }
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456 |
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457 | public MergeAction() {
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458 | putValue(SMALL_ICON, ImageProvider.get("dialogs", "mergedown"));
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459 | putValue(SHORT_DESCRIPTION, tr("Merge this layer into another layer"));
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460 | putValue("help", "Action/MergeLayer");
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461 | updateEnabledState();
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462 | }
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463 |
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464 | public void actionPerformed(ActionEvent e) {
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465 | if (layer != null) {
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466 | new MergeLayerAction().merge(layer);
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467 | } else {
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468 | Layer selectedLayer = getModel().getSelectedLayers().get(0);
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469 | new MergeLayerAction().merge(selectedLayer);
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470 | }
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471 | }
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472 |
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473 | protected boolean isActiveLayer(Layer layer) {
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474 | if (Main.map == null) return false;
|
---|
475 | if (Main.map.mapView == null) return false;
|
---|
476 | return Main.map.mapView.getActiveLayer() == layer;
|
---|
477 | }
|
---|
478 |
|
---|
479 | public void updateEnabledState() {
|
---|
480 | if (layer == null) {
|
---|
481 | if (getModel().getSelectedLayers().size() != 1) {
|
---|
482 | setEnabled(false);
|
---|
483 | return;
|
---|
484 | }
|
---|
485 | Layer selectedLayer = getModel().getSelectedLayers().get(0);
|
---|
486 | List<Layer> targets = getModel().getPossibleMergeTargets(selectedLayer);
|
---|
487 | setEnabled(!targets.isEmpty());
|
---|
488 | } else {
|
---|
489 | List<Layer> targets = getModel().getPossibleMergeTargets(layer);
|
---|
490 | setEnabled(!targets.isEmpty());
|
---|
491 | }
|
---|
492 | }
|
---|
493 | }
|
---|
494 |
|
---|
495 | /**
|
---|
496 | * the list cell renderer used to render layer list entries
|
---|
497 | *
|
---|
498 | */
|
---|
499 | class LayerListCellRenderer extends DefaultListCellRenderer {
|
---|
500 |
|
---|
501 | protected boolean isActiveLayer(Layer layer) {
|
---|
502 | if (Main.map == null) return false;
|
---|
503 | if (Main.map.mapView == null) return false;
|
---|
504 | return Main.map.mapView.getActiveLayer() == layer;
|
---|
505 | }
|
---|
506 |
|
---|
507 | @Override public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
|
---|
508 | Layer layer = (Layer)value;
|
---|
509 | JLabel label = (JLabel)super.getListCellRendererComponent(list,
|
---|
510 | layer.getName(), index, isSelected, cellHasFocus);
|
---|
511 | Icon icon = layer.getIcon();
|
---|
512 | if (isActiveLayer(layer)) {
|
---|
513 | icon = ImageProvider.overlay(icon, "overlay/active", OverlayPosition.SOUTHWEST);
|
---|
514 | }
|
---|
515 | if (!layer.isVisible()) {
|
---|
516 | icon = ImageProvider.overlay(icon, "overlay/invisiblenew", OverlayPosition.SOUTHEAST);
|
---|
517 | }
|
---|
518 | label.setIcon(icon);
|
---|
519 | label.setToolTipText(layer.getToolTipText());
|
---|
520 | return label;
|
---|
521 | }
|
---|
522 | }
|
---|
523 |
|
---|
524 | class LayerListMouseAdapter extends MouseAdapter {
|
---|
525 |
|
---|
526 | private void openPopup(MouseEvent e) {
|
---|
527 | Point p = e.getPoint();
|
---|
528 | int index = layerList.locationToIndex(p);
|
---|
529 | if (index < 0) return;
|
---|
530 | if (!layerList.getCellBounds(index, index).contains(e.getPoint()))
|
---|
531 | return;
|
---|
532 | if (!layerList.isSelectedIndex(index)) {
|
---|
533 | layerList.setSelectedIndex(index);
|
---|
534 | }
|
---|
535 | Layer layer = model.getLayer(index);
|
---|
536 | LayerListPopup menu = new LayerListPopup(layerList, layer);
|
---|
537 | menu.show(LayerListDialog.this, p.x, p.y-3);
|
---|
538 | }
|
---|
539 | @Override public void mousePressed(MouseEvent e) {
|
---|
540 | if (e.isPopupTrigger()) {
|
---|
541 | openPopup(e);
|
---|
542 | }
|
---|
543 | }
|
---|
544 | @Override public void mouseReleased(MouseEvent e) {
|
---|
545 | if (e.isPopupTrigger()) {
|
---|
546 | openPopup(e);
|
---|
547 | }
|
---|
548 | }
|
---|
549 | @Override public void mouseClicked(MouseEvent e) {
|
---|
550 | if (e.getClickCount() == 2) {
|
---|
551 | int index = layerList.locationToIndex(e.getPoint());
|
---|
552 | if (!layerList.getCellBounds(index, index).contains(e.getPoint()))
|
---|
553 | return;
|
---|
554 | Layer layer = model.getLayer(index);
|
---|
555 | String current = Main.pref.get("marker.show "+layer.getName(),"show");
|
---|
556 | Main.pref.put("marker.show "+layer.getName(), current.equalsIgnoreCase("show") ? "hide" : "show");
|
---|
557 | layer.toggleVisible();
|
---|
558 | }
|
---|
559 | }
|
---|
560 | }
|
---|
561 |
|
---|
562 | /**
|
---|
563 | * The action to move up the currently selected entries in the list.
|
---|
564 | */
|
---|
565 | class MoveUpAction extends AbstractAction implements IEnabledStateUpdating{
|
---|
566 | public MoveUpAction() {
|
---|
567 | putValue(SMALL_ICON, ImageProvider.get("dialogs", "up"));
|
---|
568 | putValue(SHORT_DESCRIPTION, tr("Move the selected layer one row up."));
|
---|
569 | updateEnabledState();
|
---|
570 | }
|
---|
571 |
|
---|
572 | public void updateEnabledState() {
|
---|
573 | setEnabled(model.canMoveUp());
|
---|
574 | }
|
---|
575 |
|
---|
576 | public void actionPerformed(ActionEvent e) {
|
---|
577 | model.moveUp();
|
---|
578 | }
|
---|
579 | }
|
---|
580 |
|
---|
581 | /**
|
---|
582 | * The action to move down the currently selected entries in the list.
|
---|
583 | */
|
---|
584 | class MoveDownAction extends AbstractAction implements IEnabledStateUpdating {
|
---|
585 | public MoveDownAction() {
|
---|
586 | putValue(SMALL_ICON, ImageProvider.get("dialogs", "down"));
|
---|
587 | putValue(SHORT_DESCRIPTION, tr("Move the selected layer one row down."));
|
---|
588 | updateEnabledState();
|
---|
589 | }
|
---|
590 |
|
---|
591 | public void updateEnabledState() {
|
---|
592 | setEnabled(model.canMoveDown());
|
---|
593 | }
|
---|
594 |
|
---|
595 | public void actionPerformed(ActionEvent e) {
|
---|
596 | model.moveDown();
|
---|
597 | }
|
---|
598 | }
|
---|
599 |
|
---|
600 | /**
|
---|
601 | * Observer interface to be implemented by views using {@see LayerListModel}
|
---|
602 | *
|
---|
603 | */
|
---|
604 | public interface LayerListModelListener {
|
---|
605 | public void makeVisible(int index, Layer layer);
|
---|
606 | public void refresh();
|
---|
607 | }
|
---|
608 |
|
---|
609 | /**
|
---|
610 | * The layer list model. The model manages a list of layers and provides methods for
|
---|
611 | * moving layers up and down, for toggling their visibility, and for activating a layer.
|
---|
612 | *
|
---|
613 | * The model is a {@see ListModel} and it provides a {@see ListSelectionModel}. It expectes
|
---|
614 | * to be configured with a {@see DefaultListSelectionModel}. The selection model is used
|
---|
615 | * to update the selection state of views depending on messages sent to the model.
|
---|
616 | *
|
---|
617 | * The model manages a list of {@see LayerListModelListener} which are mainly notified if
|
---|
618 | * the model requires views to make a specific list entry visible.
|
---|
619 | *
|
---|
620 | * It also listens to {@see PropertyChangeEvent}s of every {@see Layer} it manages, in particular to
|
---|
621 | * the properties {@see Layer#VISIBLE_PROP} and {@see Layer#NAME_PROP}.
|
---|
622 | */
|
---|
623 | public class LayerListModel extends DefaultListModel implements MapView.LayerChangeListener, PropertyChangeListener{
|
---|
624 |
|
---|
625 | /** manages list selection state*/
|
---|
626 | private DefaultListSelectionModel selectionModel;
|
---|
627 | private CopyOnWriteArrayList<LayerListModelListener> listeners;
|
---|
628 |
|
---|
629 | /**
|
---|
630 | * constructor
|
---|
631 | *
|
---|
632 | * @param selectionModel the list selection model
|
---|
633 | */
|
---|
634 | private LayerListModel(DefaultListSelectionModel selectionModel) {
|
---|
635 | this.selectionModel = selectionModel;
|
---|
636 | listeners = new CopyOnWriteArrayList<LayerListModelListener>();
|
---|
637 | }
|
---|
638 |
|
---|
639 | /**
|
---|
640 | * Adds a listener to this model
|
---|
641 | *
|
---|
642 | * @param listener the listener
|
---|
643 | */
|
---|
644 | public void addLayerListModelListener(LayerListModelListener listener) {
|
---|
645 | synchronized(listeners) {
|
---|
646 | if (listener != null && !listeners.contains(listener)) {
|
---|
647 | listeners.add(listener);
|
---|
648 | }
|
---|
649 | }
|
---|
650 | }
|
---|
651 |
|
---|
652 | /**
|
---|
653 | * removes a listener from this model
|
---|
654 | * @param listener the listener
|
---|
655 | *
|
---|
656 | */
|
---|
657 | public void removeLayerListModelListener(LayerListModelListener listener) {
|
---|
658 | synchronized(listeners) {
|
---|
659 | if (listener != null && listeners.contains(listener)) {
|
---|
660 | listeners.remove(listener);
|
---|
661 | }
|
---|
662 | }
|
---|
663 | }
|
---|
664 |
|
---|
665 | /**
|
---|
666 | * Fires a make visible event to listeners
|
---|
667 | *
|
---|
668 | * @param index the index of the row to make visible
|
---|
669 | * @param layer the layer at this index
|
---|
670 | * @see LayerListModelListener#makeVisible(int, Layer)
|
---|
671 | */
|
---|
672 | protected void fireMakeVisible(int index, Layer layer) {
|
---|
673 | for (LayerListModelListener listener : listeners) {
|
---|
674 | listener.makeVisible(index, layer);
|
---|
675 | }
|
---|
676 | }
|
---|
677 |
|
---|
678 | /**
|
---|
679 | * Fires a refresh event to listeners of this model
|
---|
680 | *
|
---|
681 | * @see LayerListModelListener#refresh()
|
---|
682 | */
|
---|
683 | protected void fireRefresh() {
|
---|
684 | for (LayerListModelListener listener : listeners) {
|
---|
685 | listener.refresh();
|
---|
686 | }
|
---|
687 | }
|
---|
688 |
|
---|
689 | /**
|
---|
690 | * Populates the model with the current layers managed by
|
---|
691 | * {@see MapView}.
|
---|
692 | *
|
---|
693 | */
|
---|
694 | public void populate() {
|
---|
695 | for (Layer layer: getLayers()) {
|
---|
696 | // make sure the model is registered exactly once
|
---|
697 | //
|
---|
698 | layer.removePropertyChangeListener(this);
|
---|
699 | layer.addPropertyChangeListener(this);
|
---|
700 | }
|
---|
701 | fireContentsChanged(this, 0, getSize());
|
---|
702 | }
|
---|
703 |
|
---|
704 | /**
|
---|
705 | * Marks <code>layer</code> as selected layer. Ignored, if
|
---|
706 | * layer is null.
|
---|
707 | *
|
---|
708 | * @param layer the layer.
|
---|
709 | */
|
---|
710 | public void setSelectedLayer(Layer layer) {
|
---|
711 | if (layer == null)
|
---|
712 | return;
|
---|
713 | int idx = getLayers().indexOf(layer);
|
---|
714 | if (idx >= 0) {
|
---|
715 | selectionModel.setSelectionInterval(idx, idx);
|
---|
716 | }
|
---|
717 | fireContentsChanged(this, 0, getSize());
|
---|
718 | ensureSelectedIsVisible();
|
---|
719 | }
|
---|
720 |
|
---|
721 | /**
|
---|
722 | * Replies the list of currently selected layers. Never null, but may
|
---|
723 | * be empty.
|
---|
724 | *
|
---|
725 | * @return the list of currently selected layers. Never null, but may
|
---|
726 | * be empty.
|
---|
727 | */
|
---|
728 | public List<Layer> getSelectedLayers() {
|
---|
729 | ArrayList<Layer> selected = new ArrayList<Layer>();
|
---|
730 | for (int i=0; i<getLayers().size(); i++) {
|
---|
731 | if (selectionModel.isSelectedIndex(i)) {
|
---|
732 | selected.add(getLayers().get(i));
|
---|
733 | }
|
---|
734 | }
|
---|
735 | return selected;
|
---|
736 | }
|
---|
737 |
|
---|
738 | /**
|
---|
739 | * Replies a the list of indices of the selected rows. Never null,
|
---|
740 | * but may be empty.
|
---|
741 | *
|
---|
742 | * @return the list of indices of the selected rows. Never null,
|
---|
743 | * but may be empty.
|
---|
744 | */
|
---|
745 | public List<Integer> getSelectedRows() {
|
---|
746 | ArrayList<Integer> selected = new ArrayList<Integer>();
|
---|
747 | for (int i=0; i<getLayers().size();i++) {
|
---|
748 | if (selectionModel.isSelectedIndex(i)) {
|
---|
749 | selected.add(i);
|
---|
750 | }
|
---|
751 | }
|
---|
752 | return selected;
|
---|
753 | }
|
---|
754 |
|
---|
755 | /**
|
---|
756 | * Invoked if a layer managed by {@see MapView} is removed
|
---|
757 | *
|
---|
758 | * @param layer the layer which is removed
|
---|
759 | */
|
---|
760 | protected void onRemoveLayer(Layer layer) {
|
---|
761 | if (layer == null)
|
---|
762 | return;
|
---|
763 | layer.removePropertyChangeListener(this);
|
---|
764 | int size = getSize();
|
---|
765 | List<Integer> rows = getSelectedRows();
|
---|
766 | if (rows.isEmpty() && size > 0) {
|
---|
767 | selectionModel.setSelectionInterval(size-1, size-1);
|
---|
768 | }
|
---|
769 | fireRefresh();
|
---|
770 | ensureSelectedIsVisible();
|
---|
771 | }
|
---|
772 |
|
---|
773 | /**
|
---|
774 | * Invoked when a layer managed by {@see MapView} is added
|
---|
775 | *
|
---|
776 | * @param layer the layer
|
---|
777 | */
|
---|
778 | protected void onAddLayer(Layer layer) {
|
---|
779 | if (layer == null) return;
|
---|
780 | layer.addPropertyChangeListener(this);
|
---|
781 | fireContentsChanged(this, 0, getSize());
|
---|
782 | int idx = getLayers().indexOf(layer);
|
---|
783 | selectionModel.setSelectionInterval(idx, idx);
|
---|
784 | ensureSelectedIsVisible();
|
---|
785 | }
|
---|
786 |
|
---|
787 | /**
|
---|
788 | * Replies the first layer. Null if no layers are present
|
---|
789 | *
|
---|
790 | * @return the first layer. Null if no layers are present
|
---|
791 | */
|
---|
792 | public Layer getFirstLayer() {
|
---|
793 | if (getSize() == 0) return null;
|
---|
794 | return getLayers().get(0);
|
---|
795 | }
|
---|
796 |
|
---|
797 | /**
|
---|
798 | * Replies the layer at position <code>index</code>
|
---|
799 | *
|
---|
800 | * @param index the index
|
---|
801 | * @return the layer at position <code>index</code>. Null,
|
---|
802 | * if index is out of range.
|
---|
803 | */
|
---|
804 | public Layer getLayer(int index) {
|
---|
805 | if (index < 0 || index >= getSize())
|
---|
806 | return null;
|
---|
807 | return getLayers().get(index);
|
---|
808 | }
|
---|
809 |
|
---|
810 | /**
|
---|
811 | * Replies true if the the currently selected layers can move up
|
---|
812 | * by one position
|
---|
813 | *
|
---|
814 | * @return true if the the currently selected layers can move up
|
---|
815 | * by one position
|
---|
816 | */
|
---|
817 | public boolean canMoveUp() {
|
---|
818 | List<Integer> sel = getSelectedRows();
|
---|
819 | return !sel.isEmpty() && sel.get(0) > 0;
|
---|
820 | }
|
---|
821 |
|
---|
822 | /**
|
---|
823 | * Move up the currently selected layers by one position
|
---|
824 | *
|
---|
825 | */
|
---|
826 | public void moveUp() {
|
---|
827 | if (!canMoveUp()) return;
|
---|
828 | List<Integer> sel = getSelectedRows();
|
---|
829 | for (int row: sel) {
|
---|
830 | Layer l1 = getLayers().get(row);
|
---|
831 | Layer l2 = getLayers().get(row-1);
|
---|
832 | Main.map.mapView.moveLayer(l2,row);
|
---|
833 | Main.map.mapView.moveLayer(l1, row-1);
|
---|
834 | }
|
---|
835 | fireContentsChanged(this, 0, getSize());
|
---|
836 | selectionModel.clearSelection();
|
---|
837 | for(int row: sel) {
|
---|
838 | selectionModel.addSelectionInterval(row-1, row-1);
|
---|
839 | }
|
---|
840 | ensureSelectedIsVisible();
|
---|
841 | }
|
---|
842 |
|
---|
843 | /**
|
---|
844 | * Replies true if the currently selected layers can move down
|
---|
845 | * by one position
|
---|
846 | *
|
---|
847 | * @return true if the currently selected layers can move down
|
---|
848 | * by one position
|
---|
849 | */
|
---|
850 | public boolean canMoveDown() {
|
---|
851 | List<Integer> sel = getSelectedRows();
|
---|
852 | return !sel.isEmpty() && sel.get(sel.size()-1) < getLayers().size()-1;
|
---|
853 | }
|
---|
854 |
|
---|
855 | /**
|
---|
856 | * Move down the currently selected layers by one position
|
---|
857 | *
|
---|
858 | */
|
---|
859 | public void moveDown() {
|
---|
860 | if (!canMoveDown()) return;
|
---|
861 | List<Integer> sel = getSelectedRows();
|
---|
862 | Collections.reverse(sel);
|
---|
863 | for (int row: sel) {
|
---|
864 | Layer l1 = getLayers().get(row);
|
---|
865 | Layer l2 = getLayers().get(row+1);
|
---|
866 | Main.map.mapView.moveLayer(l1, row+1);
|
---|
867 | Main.map.mapView.moveLayer(l2, row);
|
---|
868 | }
|
---|
869 | fireContentsChanged(this, 0, getSize());
|
---|
870 | selectionModel.clearSelection();
|
---|
871 | for(int row: sel) {
|
---|
872 | selectionModel.addSelectionInterval(row+1, row+1);
|
---|
873 | }
|
---|
874 | ensureSelectedIsVisible();
|
---|
875 | }
|
---|
876 |
|
---|
877 | /**
|
---|
878 | * Make sure the first of the selected layers is visible in the
|
---|
879 | * views of this model.
|
---|
880 | *
|
---|
881 | */
|
---|
882 | protected void ensureSelectedIsVisible() {
|
---|
883 | int index = selectionModel.getMinSelectionIndex();
|
---|
884 | if (index <0 )return;
|
---|
885 | if (index >= getLayers().size()) return;
|
---|
886 | Layer layer = getLayers().get(index);
|
---|
887 | fireMakeVisible(index, layer);
|
---|
888 | }
|
---|
889 |
|
---|
890 | /**
|
---|
891 | * Replies a list of layers which are possible merge targets
|
---|
892 | * for <code>source</code>
|
---|
893 | *
|
---|
894 | * @param source the source layer
|
---|
895 | * @return a list of layers which are possible merge targets
|
---|
896 | * for <code>source</code>. Never null, but can be empty.
|
---|
897 | */
|
---|
898 | public List<Layer> getPossibleMergeTargets(Layer source) {
|
---|
899 | ArrayList<Layer> targets = new ArrayList<Layer>();
|
---|
900 | if (source == null)
|
---|
901 | return targets;
|
---|
902 | for(Layer target: getLayers()) {
|
---|
903 | if (source == target) {
|
---|
904 | continue;
|
---|
905 | }
|
---|
906 | if (target.isMergable(source)) {
|
---|
907 | targets.add(target);
|
---|
908 | }
|
---|
909 | }
|
---|
910 | return targets;
|
---|
911 | }
|
---|
912 |
|
---|
913 | /**
|
---|
914 | * Replies the list of layers currently managed by {@see MapView}.
|
---|
915 | * Never null, but can be empty.
|
---|
916 | *
|
---|
917 | * @return the list of layers currently managed by {@see MapView}.
|
---|
918 | * Never null, but can be empty.
|
---|
919 | */
|
---|
920 | protected List<Layer> getLayers() {
|
---|
921 | if (Main.map == null || Main.map.mapView == null)
|
---|
922 | return Collections.<Layer>emptyList();
|
---|
923 | return Main.map.mapView.getAllLayersAsList();
|
---|
924 | }
|
---|
925 |
|
---|
926 | /**
|
---|
927 | * Ensures that at least one layer is selected in the layer dialog
|
---|
928 | *
|
---|
929 | */
|
---|
930 | protected void ensureActiveSelected() {
|
---|
931 | if (getLayers().size() == 0) return;
|
---|
932 | if (getActiveLayer() != null) {
|
---|
933 | // there's an active layer - select it and make it
|
---|
934 | // visible
|
---|
935 | int idx = getLayers().indexOf(getActiveLayer());
|
---|
936 | selectionModel.setSelectionInterval(idx, idx);
|
---|
937 | ensureSelectedIsVisible();
|
---|
938 | } else {
|
---|
939 | // no active layer - select the first one and make
|
---|
940 | // it visible
|
---|
941 | selectionModel.setSelectionInterval(0, 0);
|
---|
942 | ensureSelectedIsVisible();
|
---|
943 | }
|
---|
944 | }
|
---|
945 |
|
---|
946 | /**
|
---|
947 | * Replies the active layer. null, if no active layer is available
|
---|
948 | *
|
---|
949 | * @return the active layer. null, if no active layer is available
|
---|
950 | */
|
---|
951 | protected Layer getActiveLayer() {
|
---|
952 | if (Main.map == null || Main.map.mapView == null) return null;
|
---|
953 | return Main.map.mapView.getActiveLayer();
|
---|
954 | }
|
---|
955 |
|
---|
956 | /* ------------------------------------------------------------------------------ */
|
---|
957 | /* Interface ListModel */
|
---|
958 | /* ------------------------------------------------------------------------------ */
|
---|
959 | @Override
|
---|
960 | public Object getElementAt(int index) {
|
---|
961 | return getLayers().get(index);
|
---|
962 | }
|
---|
963 |
|
---|
964 | @Override
|
---|
965 | public int getSize() {
|
---|
966 | List<Layer> layers = getLayers();
|
---|
967 | if (layers == null) return 0;
|
---|
968 | return layers.size();
|
---|
969 | }
|
---|
970 |
|
---|
971 | /* ------------------------------------------------------------------------------ */
|
---|
972 | /* Interface LayerChangeListener */
|
---|
973 | /* ------------------------------------------------------------------------------ */
|
---|
974 | public void activeLayerChange(Layer oldLayer, Layer newLayer) {
|
---|
975 | if (oldLayer != null) {
|
---|
976 | int idx = getLayers().indexOf(oldLayer);
|
---|
977 | if (idx >= 0) {
|
---|
978 | fireContentsChanged(this, idx,idx);
|
---|
979 | }
|
---|
980 | }
|
---|
981 |
|
---|
982 | if (newLayer != null) {
|
---|
983 | int idx = getLayers().indexOf(newLayer);
|
---|
984 | if (idx >= 0) {
|
---|
985 | fireContentsChanged(this, idx,idx);
|
---|
986 | }
|
---|
987 | }
|
---|
988 | ensureActiveSelected();
|
---|
989 | }
|
---|
990 |
|
---|
991 | public void layerAdded(Layer newLayer) {
|
---|
992 | onAddLayer(newLayer);
|
---|
993 | }
|
---|
994 |
|
---|
995 | public void layerRemoved(final Layer oldLayer) {
|
---|
996 | onRemoveLayer(oldLayer);
|
---|
997 | }
|
---|
998 |
|
---|
999 | /* ------------------------------------------------------------------------------ */
|
---|
1000 | /* Interface PropertyChangeListener */
|
---|
1001 | /* ------------------------------------------------------------------------------ */
|
---|
1002 | public void propertyChange(PropertyChangeEvent evt) {
|
---|
1003 | if (evt.getSource() instanceof Layer) {
|
---|
1004 | Layer layer = (Layer)evt.getSource();
|
---|
1005 | final int idx = getLayers().indexOf(layer);
|
---|
1006 | if (idx < 0) return;
|
---|
1007 | fireRefresh();
|
---|
1008 | }
|
---|
1009 | }
|
---|
1010 | }
|
---|
1011 |
|
---|
1012 | class LayerList extends JList {
|
---|
1013 | public LayerList(ListModel dataModel) {
|
---|
1014 | super(dataModel);
|
---|
1015 | }
|
---|
1016 |
|
---|
1017 | @Override
|
---|
1018 | protected void processMouseEvent(MouseEvent e) {
|
---|
1019 | // if the layer list is embedded in a detached dialog, the last row is
|
---|
1020 | // selected if a user clicks in the empty space *below* the last row.
|
---|
1021 | // This mouse event filter prevents this.
|
---|
1022 | //
|
---|
1023 | int idx = locationToIndex(e.getPoint());
|
---|
1024 | // sometimes bounds can be null, see #3539
|
---|
1025 | Rectangle bounds = getCellBounds(idx,idx);
|
---|
1026 | if (bounds != null && bounds.contains(e.getPoint())) {
|
---|
1027 | super.processMouseEvent(e);
|
---|
1028 | }
|
---|
1029 | }
|
---|
1030 | }
|
---|
1031 |
|
---|
1032 | /**
|
---|
1033 | * Creates a {@see ShowHideLayerAction} for <code>layer</code> in the
|
---|
1034 | * context of this {@see LayerListDialog}.
|
---|
1035 | *
|
---|
1036 | * @param layer the layer
|
---|
1037 | * @return the action
|
---|
1038 | */
|
---|
1039 | public ShowHideLayerAction createShowHideLayerAction(Layer layer) {
|
---|
1040 | return new ShowHideLayerAction(layer);
|
---|
1041 | }
|
---|
1042 |
|
---|
1043 | /**
|
---|
1044 | * Creates a {@see DeleteLayerAction} for <code>layer</code> in the
|
---|
1045 | * context of this {@see LayerListDialog}.
|
---|
1046 | *
|
---|
1047 | * @param layer the layer
|
---|
1048 | * @return the action
|
---|
1049 | */
|
---|
1050 | public DeleteLayerAction createDeleteLayerAction(Layer layer) {
|
---|
1051 | return new DeleteLayerAction(layer);
|
---|
1052 | }
|
---|
1053 |
|
---|
1054 | /**
|
---|
1055 | * Creates a {@see ActivateLayerAction} for <code>layer</code> in the
|
---|
1056 | * context of this {@see LayerListDialog}.
|
---|
1057 | *
|
---|
1058 | * @param layer the layer
|
---|
1059 | * @return the action
|
---|
1060 | */
|
---|
1061 | public ActivateLayerAction createActivateLayerAction(Layer layer) {
|
---|
1062 | return new ActivateLayerAction(layer);
|
---|
1063 | }
|
---|
1064 |
|
---|
1065 | /**
|
---|
1066 | * Creates a {@see MergeLayerAction} for <code>layer</code> in the
|
---|
1067 | * context of this {@see LayerListDialog}.
|
---|
1068 | *
|
---|
1069 | * @param layer the layer
|
---|
1070 | * @return the action
|
---|
1071 | */
|
---|
1072 | public MergeAction createMergeLayerAction(Layer layer) {
|
---|
1073 | return new MergeAction(layer);
|
---|
1074 | }
|
---|
1075 | }
|
---|