1 | // License: GPL. For details, see LICENSE file.
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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.Component;
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7 | import java.awt.Dimension;
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8 | import java.awt.GridBagLayout;
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9 | import java.awt.event.ActionEvent;
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10 | import java.awt.event.KeyEvent;
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11 | import java.awt.event.MouseEvent;
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12 | import java.util.ArrayList;
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13 | import java.util.Arrays;
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14 | import java.util.Collection;
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15 | import java.util.LinkedHashSet;
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16 | import java.util.List;
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17 | import java.util.Set;
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18 |
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19 | import javax.swing.AbstractAction;
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20 | import javax.swing.Box;
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21 | import javax.swing.JComponent;
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22 | import javax.swing.JLabel;
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23 | import javax.swing.JPanel;
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24 | import javax.swing.JPopupMenu;
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25 | import javax.swing.JScrollPane;
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26 | import javax.swing.JSeparator;
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27 | import javax.swing.JTree;
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28 | import javax.swing.event.TreeModelEvent;
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29 | import javax.swing.event.TreeModelListener;
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30 | import javax.swing.event.TreeSelectionEvent;
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31 | import javax.swing.event.TreeSelectionListener;
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32 | import javax.swing.tree.DefaultMutableTreeNode;
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33 | import javax.swing.tree.DefaultTreeCellRenderer;
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34 | import javax.swing.tree.DefaultTreeModel;
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35 | import javax.swing.tree.TreePath;
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36 | import javax.swing.tree.TreeSelectionModel;
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37 |
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38 | import org.openstreetmap.josm.actions.AutoScaleAction;
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39 | import org.openstreetmap.josm.command.Command;
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40 | import org.openstreetmap.josm.command.PseudoCommand;
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41 | import org.openstreetmap.josm.data.UndoRedoHandler.CommandQueueListener;
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42 | import org.openstreetmap.josm.data.osm.DataSet;
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43 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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44 | import org.openstreetmap.josm.gui.MainApplication;
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45 | import org.openstreetmap.josm.gui.SideButton;
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46 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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47 | import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher;
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48 | import org.openstreetmap.josm.tools.GBC;
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49 | import org.openstreetmap.josm.tools.ImageProvider;
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50 | import org.openstreetmap.josm.tools.InputMapUtils;
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51 | import org.openstreetmap.josm.tools.Shortcut;
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52 | import org.openstreetmap.josm.tools.SubclassFilteredCollection;
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53 |
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54 | /**
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55 | * Dialog displaying list of all executed commands (undo/redo buffer).
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56 | * @since 94
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57 | */
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58 | public class CommandStackDialog extends ToggleDialog implements CommandQueueListener {
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59 |
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60 | private final DefaultTreeModel undoTreeModel = new DefaultTreeModel(new DefaultMutableTreeNode());
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61 | private final DefaultTreeModel redoTreeModel = new DefaultTreeModel(new DefaultMutableTreeNode());
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62 |
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63 | private final JTree undoTree = new JTree(undoTreeModel);
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64 | private final JTree redoTree = new JTree(redoTreeModel);
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65 |
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66 | private final transient UndoRedoSelectionListener undoSelectionListener;
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67 | private final transient UndoRedoSelectionListener redoSelectionListener;
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68 |
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69 | private final JScrollPane scrollPane;
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70 | private final JSeparator separator = new JSeparator();
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71 | // only visible, if separator is the top most component
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72 | private final Component spacer = Box.createRigidArea(new Dimension(0, 3));
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73 |
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74 | // last operation is remembered to select the next undo/redo entry in the list
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75 | // after undo/redo command
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76 | private UndoRedoType lastOperation = UndoRedoType.UNDO;
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77 |
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78 | // Actions for context menu and Enter key
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79 | private final SelectAction selectAction = new SelectAction();
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80 | private final SelectAndZoomAction selectAndZoomAction = new SelectAndZoomAction();
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81 |
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82 | /**
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83 | * Constructs a new {@code CommandStackDialog}.
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84 | */
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85 | public CommandStackDialog() {
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86 | super(tr("Command Stack"), "commandstack", tr("Open a list of all commands (undo buffer)."),
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87 | Shortcut.registerShortcut("subwindow:commandstack", tr("Toggle: {0}",
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88 | tr("Command Stack")), KeyEvent.VK_O, Shortcut.ALT_SHIFT), 100);
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89 | undoTree.addMouseListener(new MouseEventHandler());
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90 | undoTree.setRootVisible(false);
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91 | undoTree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
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92 | undoTree.setShowsRootHandles(true);
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93 | undoTree.expandRow(0);
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94 | undoTree.setCellRenderer(new CommandCellRenderer());
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95 | undoSelectionListener = new UndoRedoSelectionListener(undoTree);
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96 | undoTree.getSelectionModel().addTreeSelectionListener(undoSelectionListener);
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97 | InputMapUtils.unassignCtrlShiftUpDown(undoTree, JComponent.WHEN_FOCUSED);
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98 |
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99 | redoTree.addMouseListener(new MouseEventHandler());
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100 | redoTree.setRootVisible(false);
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101 | redoTree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
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102 | redoTree.setShowsRootHandles(true);
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103 | redoTree.expandRow(0);
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104 | redoTree.setCellRenderer(new CommandCellRenderer());
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105 | redoSelectionListener = new UndoRedoSelectionListener(redoTree);
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106 | redoTree.getSelectionModel().addTreeSelectionListener(redoSelectionListener);
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107 | InputMapUtils.unassignCtrlShiftUpDown(redoTree, JComponent.WHEN_FOCUSED);
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108 |
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109 | JPanel treesPanel = new JPanel(new GridBagLayout());
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110 |
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111 | treesPanel.add(spacer, GBC.eol());
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112 | spacer.setVisible(false);
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113 | treesPanel.add(undoTree, GBC.eol().fill(GBC.HORIZONTAL));
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114 | separator.setVisible(false);
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115 | treesPanel.add(separator, GBC.eol().fill(GBC.HORIZONTAL));
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116 | treesPanel.add(redoTree, GBC.eol().fill(GBC.HORIZONTAL));
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117 | treesPanel.add(Box.createRigidArea(new Dimension(0, 0)), GBC.std().weight(0, 1));
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118 | treesPanel.setBackground(redoTree.getBackground());
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119 |
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120 | wireUpdateEnabledStateUpdater(selectAction, undoTree);
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121 | wireUpdateEnabledStateUpdater(selectAction, redoTree);
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122 |
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123 | UndoRedoAction undoAction = new UndoRedoAction(UndoRedoType.UNDO);
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124 | wireUpdateEnabledStateUpdater(undoAction, undoTree);
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125 |
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126 | UndoRedoAction redoAction = new UndoRedoAction(UndoRedoType.REDO);
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127 | wireUpdateEnabledStateUpdater(redoAction, redoTree);
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128 |
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129 | scrollPane = (JScrollPane) createLayout(treesPanel, true, Arrays.asList(
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130 | new SideButton(selectAction),
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131 | new SideButton(undoAction),
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132 | new SideButton(redoAction)
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133 | ));
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134 |
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135 | InputMapUtils.addEnterAction(undoTree, selectAndZoomAction);
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136 | InputMapUtils.addEnterAction(redoTree, selectAndZoomAction);
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137 | }
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138 |
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139 | private static class CommandCellRenderer extends DefaultTreeCellRenderer {
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140 | @Override
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141 | public Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded, boolean leaf, int row,
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142 | boolean hasFocus) {
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143 | super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus);
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144 | DefaultMutableTreeNode v = (DefaultMutableTreeNode) value;
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145 | if (v.getUserObject() instanceof JLabel) {
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146 | JLabel l = (JLabel) v.getUserObject();
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147 | setIcon(l.getIcon());
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148 | setText(l.getText());
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149 | }
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150 | return this;
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151 | }
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152 | }
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153 |
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154 | private void updateTitle() {
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155 | int undo = undoTreeModel.getChildCount(undoTreeModel.getRoot());
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156 | int redo = redoTreeModel.getChildCount(redoTreeModel.getRoot());
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157 | if (undo > 0 || redo > 0) {
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158 | setTitle(tr("Command Stack: Undo: {0} / Redo: {1}", undo, redo));
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159 | } else {
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160 | setTitle(tr("Command Stack"));
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161 | }
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162 | }
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163 |
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164 | /**
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165 | * Selection listener for undo and redo area.
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166 | * If one is clicked, takes away the selection from the other, so
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167 | * it behaves as if it was one component.
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168 | */
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169 | private class UndoRedoSelectionListener implements TreeSelectionListener {
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170 | private final JTree source;
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171 |
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172 | UndoRedoSelectionListener(JTree source) {
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173 | this.source = source;
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174 | }
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175 |
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176 | @Override
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177 | public void valueChanged(TreeSelectionEvent e) {
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178 | if (source == undoTree) {
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179 | redoTree.getSelectionModel().removeTreeSelectionListener(redoSelectionListener);
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180 | redoTree.clearSelection();
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181 | redoTree.getSelectionModel().addTreeSelectionListener(redoSelectionListener);
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182 | }
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183 | if (source == redoTree) {
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184 | undoTree.getSelectionModel().removeTreeSelectionListener(undoSelectionListener);
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185 | undoTree.clearSelection();
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186 | undoTree.getSelectionModel().addTreeSelectionListener(undoSelectionListener);
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187 | }
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188 | }
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189 | }
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190 |
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191 | /**
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192 | * Wires updater for enabled state to the events. Also updates dialog title if needed.
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193 | * @param updater updater
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194 | * @param tree tree on which wire updater
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195 | */
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196 | protected void wireUpdateEnabledStateUpdater(final IEnabledStateUpdating updater, JTree tree) {
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197 | addShowNotifyListener(updater);
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198 |
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199 | tree.addTreeSelectionListener(e -> updater.updateEnabledState());
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200 |
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201 | tree.getModel().addTreeModelListener(new TreeModelListener() {
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202 | @Override
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203 | public void treeNodesChanged(TreeModelEvent e) {
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204 | updater.updateEnabledState();
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205 | updateTitle();
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206 | }
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207 |
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208 | @Override
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209 | public void treeNodesInserted(TreeModelEvent e) {
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210 | updater.updateEnabledState();
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211 | updateTitle();
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212 | }
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213 |
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214 | @Override
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215 | public void treeNodesRemoved(TreeModelEvent e) {
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216 | updater.updateEnabledState();
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217 | updateTitle();
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218 | }
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219 |
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220 | @Override
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221 | public void treeStructureChanged(TreeModelEvent e) {
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222 | updater.updateEnabledState();
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223 | updateTitle();
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224 | }
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225 | });
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226 | }
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227 |
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228 | @Override
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229 | public void showNotify() {
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230 | buildTrees();
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231 | for (IEnabledStateUpdating listener : showNotifyListener) {
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232 | listener.updateEnabledState();
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233 | }
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234 | MainApplication.undoRedo.addCommandQueueListener(this);
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235 | }
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236 |
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237 | /**
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238 | * Simple listener setup to update the button enabled state when the side dialog shows.
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239 | */
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240 | private final transient Set<IEnabledStateUpdating> showNotifyListener = new LinkedHashSet<>();
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241 |
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242 | private void addShowNotifyListener(IEnabledStateUpdating listener) {
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243 | showNotifyListener.add(listener);
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244 | }
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245 |
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246 | @Override
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247 | public void hideNotify() {
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248 | undoTreeModel.setRoot(new DefaultMutableTreeNode());
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249 | redoTreeModel.setRoot(new DefaultMutableTreeNode());
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250 | MainApplication.undoRedo.removeCommandQueueListener(this);
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251 | }
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252 |
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253 | /**
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254 | * Build the trees of undo and redo commands (initially or when
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255 | * they have changed).
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256 | */
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257 | private void buildTrees() {
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258 | setTitle(tr("Command Stack"));
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259 | if (MainApplication.getLayerManager().getEditLayer() == null)
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260 | return;
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261 |
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262 | List<Command> undoCommands = MainApplication.undoRedo.commands;
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263 | DefaultMutableTreeNode undoRoot = new DefaultMutableTreeNode();
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264 | for (int i = 0; i < undoCommands.size(); ++i) {
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265 | undoRoot.add(getNodeForCommand(undoCommands.get(i), i));
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266 | }
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267 | undoTreeModel.setRoot(undoRoot);
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268 |
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269 | List<Command> redoCommands = MainApplication.undoRedo.redoCommands;
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270 | DefaultMutableTreeNode redoRoot = new DefaultMutableTreeNode();
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271 | for (int i = 0; i < redoCommands.size(); ++i) {
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272 | redoRoot.add(getNodeForCommand(redoCommands.get(i), i));
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273 | }
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274 | redoTreeModel.setRoot(redoRoot);
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275 | if (redoTreeModel.getChildCount(redoRoot) > 0) {
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276 | redoTree.scrollRowToVisible(0);
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277 | scrollPane.getHorizontalScrollBar().setValue(0);
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278 | }
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279 |
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280 | separator.setVisible(!undoCommands.isEmpty() || !redoCommands.isEmpty());
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281 | spacer.setVisible(undoCommands.isEmpty() && !redoCommands.isEmpty());
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282 |
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283 | // if one tree is empty, move selection to the other
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284 | switch (lastOperation) {
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285 | case UNDO:
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286 | if (undoCommands.isEmpty()) {
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287 | lastOperation = UndoRedoType.REDO;
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288 | }
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289 | break;
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290 | case REDO:
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291 | if (redoCommands.isEmpty()) {
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292 | lastOperation = UndoRedoType.UNDO;
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293 | }
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294 | break;
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295 | }
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296 |
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297 | // select the next command to undo/redo
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298 | switch (lastOperation) {
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299 | case UNDO:
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300 | undoTree.setSelectionRow(undoTree.getRowCount()-1);
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301 | break;
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302 | case REDO:
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303 | redoTree.setSelectionRow(0);
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304 | break;
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305 | }
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306 |
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307 | undoTree.scrollRowToVisible(undoTreeModel.getChildCount(undoRoot)-1);
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308 | scrollPane.getHorizontalScrollBar().setValue(0);
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309 | }
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310 |
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311 | /**
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312 | * Wraps a command in a CommandListMutableTreeNode.
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313 | * Recursively adds child commands.
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314 | * @param c the command
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315 | * @param idx index
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316 | * @return the resulting node
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317 | */
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318 | protected CommandListMutableTreeNode getNodeForCommand(PseudoCommand c, int idx) {
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319 | CommandListMutableTreeNode node = new CommandListMutableTreeNode(c, idx);
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320 | if (c.getChildren() != null) {
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321 | List<PseudoCommand> children = new ArrayList<>(c.getChildren());
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322 | for (int i = 0; i < children.size(); ++i) {
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323 | node.add(getNodeForCommand(children.get(i), i));
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324 | }
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325 | }
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326 | return node;
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327 | }
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328 |
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329 | /**
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330 | * Return primitives that are affected by some command
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331 | * @param path GUI elements
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332 | * @return collection of affected primitives, onluy usable ones
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333 | */
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334 | protected static Collection<? extends OsmPrimitive> getAffectedPrimitives(TreePath path) {
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335 | PseudoCommand c = ((CommandListMutableTreeNode) path.getLastPathComponent()).getCommand();
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336 | final OsmDataLayer currentLayer = MainApplication.getLayerManager().getEditLayer();
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337 | return new SubclassFilteredCollection<>(
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338 | c.getParticipatingPrimitives(),
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339 | o -> {
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340 | OsmPrimitive p = currentLayer.data.getPrimitiveById(o);
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341 | return p != null && p.isUsable();
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342 | }
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343 | );
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344 | }
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345 |
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346 | @Override
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347 | public void commandChanged(int queueSize, int redoSize) {
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348 | if (!isVisible())
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349 | return;
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350 | buildTrees();
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351 | }
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352 |
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353 | /**
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354 | * Action that selects the objects that take part in a command.
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355 | */
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356 | public class SelectAction extends AbstractAction implements IEnabledStateUpdating {
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357 |
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358 | /**
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359 | * Constructs a new {@code SelectAction}.
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360 | */
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361 | public SelectAction() {
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362 | putValue(NAME, tr("Select"));
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363 | putValue(SHORT_DESCRIPTION, tr("Selects the objects that take part in this command (unless currently deleted)"));
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364 | new ImageProvider("dialogs", "select").getResource().attachImageIcon(this, true);
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365 | }
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366 |
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367 | @Override
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368 | public void actionPerformed(ActionEvent e) {
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369 | TreePath path;
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370 | if (!undoTree.isSelectionEmpty()) {
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371 | path = undoTree.getSelectionPath();
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372 | } else if (!redoTree.isSelectionEmpty()) {
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373 | path = redoTree.getSelectionPath();
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374 | } else
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375 | throw new IllegalStateException();
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376 |
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377 | DataSet dataSet = MainApplication.getLayerManager().getEditDataSet();
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378 | if (dataSet == null) return;
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379 | dataSet.setSelected(getAffectedPrimitives(path));
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380 | }
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381 |
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382 | @Override
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383 | public void updateEnabledState() {
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384 | setEnabled(!undoTree.isSelectionEmpty() || !redoTree.isSelectionEmpty());
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385 | }
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386 | }
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387 |
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388 | /**
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389 | * Action that selects the objects that take part in a command, then zoom to them.
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390 | */
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391 | public class SelectAndZoomAction extends SelectAction {
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392 | /**
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393 | * Constructs a new {@code SelectAndZoomAction}.
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394 | */
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395 | public SelectAndZoomAction() {
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396 | putValue(NAME, tr("Select and zoom"));
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397 | putValue(SHORT_DESCRIPTION,
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398 | tr("Selects the objects that take part in this command (unless currently deleted), then and zooms to it"));
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399 | new ImageProvider("dialogs/autoscale", "selection").getResource().attachImageIcon(this, true);
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400 | }
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401 |
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402 | @Override
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403 | public void actionPerformed(ActionEvent e) {
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404 | super.actionPerformed(e);
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405 | AutoScaleAction.autoScale("selection");
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406 | }
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407 | }
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408 |
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409 | /**
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410 | * undo / redo switch to reduce duplicate code
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411 | */
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412 | protected enum UndoRedoType {
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413 | UNDO,
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414 | REDO
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415 | }
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416 |
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417 | /**
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418 | * Action to undo or redo all commands up to (and including) the seleced item.
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419 | */
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420 | protected class UndoRedoAction extends AbstractAction implements IEnabledStateUpdating {
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421 | private final UndoRedoType type;
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422 | private final JTree tree;
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423 |
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424 | /**
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425 | * constructor
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426 | * @param type decide whether it is an undo action or a redo action
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427 | */
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428 | public UndoRedoAction(UndoRedoType type) {
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429 | this.type = type;
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430 | if (UndoRedoType.UNDO == type) {
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431 | tree = undoTree;
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432 | putValue(NAME, tr("Undo"));
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433 | putValue(SHORT_DESCRIPTION, tr("Undo the selected and all later commands"));
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434 | new ImageProvider("undo").getResource().attachImageIcon(this, true);
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435 | } else {
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436 | tree = redoTree;
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437 | putValue(NAME, tr("Redo"));
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438 | putValue(SHORT_DESCRIPTION, tr("Redo the selected and all earlier commands"));
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439 | new ImageProvider("redo").getResource().attachImageIcon(this, true);
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440 | }
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441 | }
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442 |
|
---|
443 | @Override
|
---|
444 | public void actionPerformed(ActionEvent e) {
|
---|
445 | lastOperation = type;
|
---|
446 | TreePath path = tree.getSelectionPath();
|
---|
447 |
|
---|
448 | // we can only undo top level commands
|
---|
449 | if (path.getPathCount() != 2)
|
---|
450 | throw new IllegalStateException();
|
---|
451 |
|
---|
452 | int idx = ((CommandListMutableTreeNode) path.getLastPathComponent()).getIndex();
|
---|
453 |
|
---|
454 | // calculate the number of commands to undo/redo; then do it
|
---|
455 | switch (type) {
|
---|
456 | case UNDO:
|
---|
457 | int numUndo = ((DefaultMutableTreeNode) undoTreeModel.getRoot()).getChildCount() - idx;
|
---|
458 | MainApplication.undoRedo.undo(numUndo);
|
---|
459 | break;
|
---|
460 | case REDO:
|
---|
461 | int numRedo = idx+1;
|
---|
462 | MainApplication.undoRedo.redo(numRedo);
|
---|
463 | break;
|
---|
464 | }
|
---|
465 | MainApplication.getMap().repaint();
|
---|
466 | }
|
---|
467 |
|
---|
468 | @Override
|
---|
469 | public void updateEnabledState() {
|
---|
470 | // do not allow execution if nothing is selected or a sub command was selected
|
---|
471 | setEnabled(!tree.isSelectionEmpty() && tree.getSelectionPath().getPathCount() == 2);
|
---|
472 | }
|
---|
473 | }
|
---|
474 |
|
---|
475 | class MouseEventHandler extends PopupMenuLauncher {
|
---|
476 |
|
---|
477 | MouseEventHandler() {
|
---|
478 | super(new CommandStackPopup());
|
---|
479 | }
|
---|
480 |
|
---|
481 | @Override
|
---|
482 | public void mouseClicked(MouseEvent evt) {
|
---|
483 | if (isDoubleClick(evt)) {
|
---|
484 | selectAndZoomAction.actionPerformed(null);
|
---|
485 | }
|
---|
486 | }
|
---|
487 | }
|
---|
488 |
|
---|
489 | private class CommandStackPopup extends JPopupMenu {
|
---|
490 | CommandStackPopup() {
|
---|
491 | add(selectAction);
|
---|
492 | add(selectAndZoomAction);
|
---|
493 | }
|
---|
494 | }
|
---|
495 | }
|
---|