1 | // License: GPL. Copyright 2007 by Immanuel Scholz and others
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2 | package org.openstreetmap.josm.gui.dialogs;
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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.GridLayout;
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9 | import java.awt.Point;
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10 | import java.awt.event.ActionEvent;
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11 | import java.awt.event.ActionListener;
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12 | import java.awt.event.KeyEvent;
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13 | import java.awt.event.MouseAdapter;
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14 | import java.awt.event.MouseEvent;
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15 | import java.util.Collection;
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16 |
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17 | import javax.swing.AbstractAction;
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18 | import javax.swing.Action;
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19 | import javax.swing.DefaultListCellRenderer;
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20 | import javax.swing.DefaultListModel;
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21 | import javax.swing.Icon;
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22 | import javax.swing.JLabel;
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23 | import javax.swing.JList;
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24 | import javax.swing.JOptionPane;
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25 | import javax.swing.JPanel;
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26 | import javax.swing.JScrollPane;
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27 | import javax.swing.ListSelectionModel;
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28 | import javax.swing.UIManager;
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29 | import javax.swing.event.ListSelectionEvent;
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30 | import javax.swing.event.ListSelectionListener;
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31 |
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32 | import org.openstreetmap.josm.Main;
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33 | import org.openstreetmap.josm.gui.MapFrame;
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34 | import org.openstreetmap.josm.gui.MapView;
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35 | import org.openstreetmap.josm.gui.SideButton;
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36 | import org.openstreetmap.josm.gui.layer.Layer;
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37 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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38 | import org.openstreetmap.josm.gui.layer.Layer.LayerChangeListener;
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39 | import org.openstreetmap.josm.tools.DontShowAgainInfo;
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40 | import org.openstreetmap.josm.tools.ImageProvider;
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41 | import org.openstreetmap.josm.tools.ImageProvider.OverlayPosition;
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42 | import org.openstreetmap.josm.tools.Shortcut;
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43 |
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44 | /**
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45 | * A component that manages the list of all layers and react to selection changes
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46 | * by setting the active layer in the mapview.
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47 | *
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48 | * @author imi
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49 | */
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50 | public class LayerListDialog extends ToggleDialog implements LayerChangeListener {
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51 |
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52 | /**
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53 | * The last layerlist created. Used to update the list in the Show/Hide and Delete actions.
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54 | * TODO: Replace with Listener-Pattern.
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55 | */
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56 | static JList instance;
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57 | private JScrollPane listScrollPane;
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58 |
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59 | public final static class DeleteLayerAction extends AbstractAction {
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60 |
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61 | private final Layer layer;
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62 |
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63 | public DeleteLayerAction(Layer layer) {
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64 | super(tr("Delete"), ImageProvider.get("dialogs", "delete"));
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65 | putValue(SHORT_DESCRIPTION, tr("Delete the selected layer."));
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66 | putValue("help", "Action/LayerDelete");
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67 | this.layer = layer;
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68 | }
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69 |
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70 | public void actionPerformed(ActionEvent e) {
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71 | int sel = instance.getSelectedIndex();
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72 | Layer l = layer != null ? layer : (Layer)instance.getSelectedValue();
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73 | if(l == null)
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74 | return;
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75 | if (l instanceof OsmDataLayer)
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76 | {
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77 | if (((OsmDataLayer)l).isModified())
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78 | {
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79 | if(JOptionPane.showConfirmDialog(instance, tr("There are unsaved changes. Delete the layer anwyay?"),
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80 | tr("Unsaved Changes"), JOptionPane.YES_NO_OPTION) != JOptionPane.YES_OPTION)
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81 | return;
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82 | }
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83 | else if(!DontShowAgainInfo.show("delete_layer", tr("Do you really want to delete the whole layer?"), false))
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84 | return;
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85 | }
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86 | Main.main.removeLayer(l);
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87 | if (sel >= instance.getModel().getSize())
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88 | sel = instance.getModel().getSize()-1;
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89 | if (instance.getSelectedValue() == null)
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90 | instance.setSelectedIndex(sel);
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91 | if (Main.map != null)
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92 | Main.map.mapView.setActiveLayer((Layer)instance.getSelectedValue());
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93 | }
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94 | }
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95 |
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96 | public final static class ShowHideLayerAction extends AbstractAction {
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97 | private final Layer layer;
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98 |
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99 | public ShowHideLayerAction(Layer layer) {
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100 | super(tr("Show/Hide"), ImageProvider.get("dialogs", "showhide"));
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101 | putValue(SHORT_DESCRIPTION, tr("Toggle visible state of the selected layer."));
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102 | putValue("help", "Action/LayerShowHide");
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103 | this.layer = layer;
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104 | }
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105 |
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106 | public void actionPerformed(ActionEvent e) {
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107 | Layer l = layer == null ? (Layer)instance.getSelectedValue() : layer;
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108 | if(l == null)
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109 | return;
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110 | l.visible = !l.visible;
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111 | Main.map.mapView.repaint();
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112 | instance.repaint();
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113 | }
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114 | }
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115 |
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116 | public final static class ShowHideMarkerText extends AbstractAction {
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117 | private final Layer layer;
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118 |
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119 | public ShowHideMarkerText(Layer layer) {
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120 | super(tr("Show/Hide Text/Icons"), ImageProvider.get("dialogs", "showhide"));
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121 | putValue(SHORT_DESCRIPTION, tr("Toggle visible state of the marker text and icons."));
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122 | putValue("help", "Action/ShowHideTextIcons");
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123 | this.layer = layer;
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124 | }
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125 |
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126 | public void actionPerformed(ActionEvent e) {
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127 | Layer l = layer == null ? (Layer)instance.getSelectedValue() : layer;
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128 | String current = Main.pref.get("marker.show "+l.name,"show");
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129 | Main.pref.put("marker.show "+l.name, current.equalsIgnoreCase("show") ? "hide" : "show");
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130 | Main.map.mapView.repaint();
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131 | instance.repaint();
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132 | }
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133 | }
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134 |
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135 | /**
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136 | * The data model for the list component.
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137 | */
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138 | DefaultListModel model = new DefaultListModel();
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139 | /**
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140 | * The merge action. This is only called, if the current selection and its
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141 | * item below are editable datasets and the merge button is clicked.
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142 | */
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143 | private final SideButton mergeButton;
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144 | /**
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145 | * Button for moving layer up.
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146 | */
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147 | private final SideButton upButton;
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148 | /**
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149 | * Button for moving layer down.
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150 | */
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151 | private final SideButton downButton;
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152 | /**
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153 | * Button for delete layer.
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154 | */
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155 | private Action deleteAction = new DeleteLayerAction(null);
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156 |
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157 | /**
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158 | * Create an layerlist and attach it to the given mapView.
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159 | */
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160 | public LayerListDialog(MapFrame mapFrame) {
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161 | super(tr("Layers"), "layerlist", tr("Open a list of all loaded layers."),
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162 | Shortcut.registerShortcut("subwindow:layers", tr("Toggle: {0}", tr("Layers")), KeyEvent.VK_L, Shortcut.GROUP_LAYER), 100);
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163 | instance = new JList(model);
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164 | listScrollPane = new JScrollPane(instance);
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165 | add(listScrollPane, BorderLayout.CENTER);
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166 | instance.setBackground(UIManager.getColor("Button.background"));
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167 | instance.setCellRenderer(new DefaultListCellRenderer(){
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168 | @Override public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
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169 | Layer layer = (Layer)value;
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170 | JLabel label = (JLabel)super.getListCellRendererComponent(list,
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171 | layer.name, index, isSelected, cellHasFocus);
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172 | Icon icon = layer.getIcon();
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173 | if (!layer.visible)
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174 | icon = ImageProvider.overlay(icon, "overlay/invisible", OverlayPosition.SOUTHEAST);
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175 | label.setIcon(icon);
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176 | label.setToolTipText(layer.getToolTipText());
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177 | return label;
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178 | }
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179 | });
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180 |
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181 | final MapView mapView = mapFrame.mapView;
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182 |
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183 | Collection<Layer> data = mapView.getAllLayers();
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184 | for (Layer l : data)
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185 | model.addElement(l);
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186 |
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187 | instance.setSelectedValue(mapView.getActiveLayer(), true);
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188 | instance.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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189 | instance.addListSelectionListener(new ListSelectionListener(){
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190 | public void valueChanged(ListSelectionEvent e) {
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191 | if (instance.getModel().getSize() == 0)
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192 | return;
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193 | if (instance.getSelectedIndex() == -1)
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194 | instance.setSelectedIndex(e.getFirstIndex());
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195 | mapView.setActiveLayer((Layer)instance.getSelectedValue());
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196 | }
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197 | });
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198 | Layer.listeners.add(this);
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199 |
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200 | instance.addMouseListener(new MouseAdapter(){
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201 | private void openPopup(MouseEvent e) {
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202 | Point p = e.getPoint();
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203 | int index = instance.locationToIndex(p);
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204 | Layer layer = (Layer)instance.getModel().getElementAt(index);
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205 | LayerListPopup menu = new LayerListPopup(instance, layer);
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206 | menu.show(listScrollPane, p.x, p.y-3);
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207 | }
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208 | @Override public void mousePressed(MouseEvent e) {
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209 | if (e.isPopupTrigger())
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210 | openPopup(e);
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211 | }
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212 | @Override public void mouseReleased(MouseEvent e) {
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213 | if (e.isPopupTrigger())
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214 | openPopup(e);
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215 | }
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216 | @Override public void mouseClicked(MouseEvent e) {
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217 | if (e.getClickCount() == 2) {
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218 | int index = instance.locationToIndex(e.getPoint());
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219 | Layer layer = (Layer)instance.getModel().getElementAt(index);
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220 | String current = Main.pref.get("marker.show "+layer.name,"show");
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221 | Main.pref.put("marker.show "+layer.name, current.equalsIgnoreCase("show") ? "hide" : "show");
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222 | layer.visible = !layer.visible;
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223 | Main.map.mapView.repaint();
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224 | instance.repaint();
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225 | }
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226 | }
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227 | });
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228 |
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229 |
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230 | // Buttons
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231 | JPanel buttonPanel = new JPanel(new GridLayout(1, 5));
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232 |
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233 | ActionListener upDown = new ActionListener(){
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234 | public void actionPerformed(ActionEvent e) {
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235 | Layer l = (Layer)instance.getSelectedValue();
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236 | int sel = instance.getSelectedIndex();
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237 | int selDest = e.getActionCommand().equals("up") ? sel-1 : sel+1;
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238 | mapView.moveLayer(l, selDest);
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239 | model.set(sel, model.get(selDest));
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240 | model.set(selDest, l);
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241 | instance.setSelectedIndex(selDest);
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242 | updateButtonEnabled();
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243 | mapView.repaint();
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244 | }
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245 | };
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246 |
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247 | upButton = new SideButton("up", "LayerList", tr("Move the selected layer one row up."), upDown);
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248 | buttonPanel.add(upButton);
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249 |
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250 | downButton = new SideButton("down", "LayerList", tr("Move the selected layer one row down."), upDown);
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251 | buttonPanel.add(downButton);
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252 |
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253 | buttonPanel.add(new SideButton(new ShowHideLayerAction(null), "showhide"));
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254 | buttonPanel.add(new SideButton(deleteAction, "delete"));
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255 |
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256 | mergeButton = new SideButton("mergedown", "LayerList", tr("Merge the layer directly below into the selected layer."),
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257 | new ActionListener(){
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258 | public void actionPerformed(ActionEvent e) {
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259 | Layer lTo = (Layer)instance.getSelectedValue();
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260 | Layer lFrom = (Layer)model.get(instance.getSelectedIndex()+1);
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261 | lTo.mergeFrom(lFrom);
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262 | mapView.removeLayer(lFrom);
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263 | updateButtonEnabled();
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264 | mapView.repaint();
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265 | }
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266 | });
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267 | buttonPanel.add(mergeButton);
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268 |
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269 | add(buttonPanel, BorderLayout.SOUTH);
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270 |
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271 | updateButtonEnabled();
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272 | }
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273 |
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274 | /**
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275 | * Updates the state of the Buttons.
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276 | */
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277 | void updateButtonEnabled() {
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278 | int sel = instance.getSelectedIndex();
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279 | Layer l = (Layer)instance.getSelectedValue();
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280 | boolean enable = model.getSize() > 1;
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281 | enable = enable && sel < model.getSize()-1;
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282 | enable = enable && ((Layer)model.get(sel+1)).isMergable(l);
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283 | mergeButton.setEnabled(enable);
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284 | upButton.setEnabled(sel > 0);
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285 | downButton.setEnabled(sel >= 0 && sel < model.getSize()-1);
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286 | deleteAction.setEnabled(!model.isEmpty());
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287 |
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288 | if(model.getSize() != 0) {
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289 | setTitle(tr("Layers: {0}", model.getSize()), true);
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290 | } else {
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291 | setTitle(tr("Layers"), false);
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292 | }
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293 | }
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294 |
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295 | /**
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296 | * Add the new layer to the list.
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297 | */
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298 | public void layerAdded(Layer newLayer) {
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299 | int pos = Main.map.mapView.getLayerPos(newLayer);
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300 | model.add(pos, newLayer);
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301 | updateButtonEnabled();
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302 | }
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303 |
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304 | public void layerRemoved(Layer oldLayer) {
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305 | model.removeElement(oldLayer);
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306 | if (model.isEmpty()) {
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307 | Layer.listeners.remove(this);
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308 | return;
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309 | }
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310 | if (instance.getSelectedIndex() == -1)
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311 | instance.setSelectedIndex(0);
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312 | updateButtonEnabled();
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313 | }
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314 |
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315 | /**
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316 | * If the newLayer is not the actual selection, select it.
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317 | */
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318 | public void activeLayerChange(Layer oldLayer, Layer newLayer) {
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319 | if (newLayer != instance.getSelectedValue())
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320 | instance.setSelectedValue(newLayer, true);
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321 | updateButtonEnabled();
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322 | }
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323 | }
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