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.MutableTreeNode; |
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36 | import javax.swing.tree.TreePath; |
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37 | import javax.swing.tree.TreeSelectionModel; |
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38 | |
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39 | import org.openstreetmap.josm.actions.AutoScaleAction; |
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40 | import org.openstreetmap.josm.command.Command; |
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41 | import org.openstreetmap.josm.command.PseudoCommand; |
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42 | import org.openstreetmap.josm.data.UndoRedoHandler; |
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43 | import org.openstreetmap.josm.data.UndoRedoHandler.CommandAddedEvent; |
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44 | import org.openstreetmap.josm.data.UndoRedoHandler.CommandQueueCleanedEvent; |
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45 | import org.openstreetmap.josm.data.UndoRedoHandler.CommandQueuePreciseListener; |
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46 | import org.openstreetmap.josm.data.UndoRedoHandler.CommandRedoneEvent; |
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47 | import org.openstreetmap.josm.data.UndoRedoHandler.CommandUndoneEvent; |
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48 | import org.openstreetmap.josm.data.osm.DataSet; |
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49 | import org.openstreetmap.josm.data.osm.OsmPrimitive; |
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50 | import org.openstreetmap.josm.gui.MainApplication; |
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51 | import org.openstreetmap.josm.gui.SideButton; |
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52 | import org.openstreetmap.josm.gui.layer.OsmDataLayer; |
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53 | import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher; |
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54 | import org.openstreetmap.josm.tools.GBC; |
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55 | import org.openstreetmap.josm.tools.ImageProvider; |
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56 | import org.openstreetmap.josm.tools.InputMapUtils; |
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57 | import org.openstreetmap.josm.tools.Shortcut; |
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58 | import org.openstreetmap.josm.tools.SubclassFilteredCollection; |
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59 | |
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60 | /** |
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61 | * Dialog displaying list of all executed commands (undo/redo buffer). |
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62 | * @since 94 |
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63 | */ |
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64 | public class CommandStackDialog extends ToggleDialog implements CommandQueuePreciseListener { |
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65 | |
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66 | private final DefaultTreeModel undoTreeModel = new DefaultTreeModel(new DefaultMutableTreeNode()); |
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67 | private final DefaultTreeModel redoTreeModel = new DefaultTreeModel(new DefaultMutableTreeNode()); |
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68 | |
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69 | private final JTree undoTree = new JTree(undoTreeModel); |
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70 | private final JTree redoTree = new JTree(redoTreeModel); |
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71 | |
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72 | private DefaultMutableTreeNode undoRoot; |
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73 | private DefaultMutableTreeNode redoRoot; |
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74 | |
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75 | private final transient UndoRedoSelectionListener undoSelectionListener; |
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76 | private final transient UndoRedoSelectionListener redoSelectionListener; |
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77 | |
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78 | private final JScrollPane scrollPane; |
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79 | private final JSeparator separator = new JSeparator(); |
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80 | // only visible, if separator is the top most component |
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81 | private final Component spacer = Box.createRigidArea(new Dimension(0, 3)); |
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82 | |
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83 | // last operation is remembered to select the next undo/redo entry in the list |
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84 | // after undo/redo command |
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85 | private UndoRedoType lastOperation = UndoRedoType.UNDO; |
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86 | |
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87 | // Actions for context menu and Enter key |
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88 | private final SelectAction selectAction = new SelectAction(); |
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89 | private final SelectAndZoomAction selectAndZoomAction = new SelectAndZoomAction(); |
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90 | |
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91 | /** |
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92 | * Constructs a new {@code CommandStackDialog}. |
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93 | */ |
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94 | public CommandStackDialog() { |
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95 | super(tr("Command Stack"), "commandstack", tr("Open a list of all commands (undo buffer)."), |
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96 | Shortcut.registerShortcut("subwindow:commandstack", tr("Toggle: {0}", |
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97 | tr("Command Stack")), KeyEvent.VK_O, Shortcut.ALT_SHIFT), 100); |
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98 | undoTree.addMouseListener(new MouseEventHandler()); |
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99 | undoTree.setRootVisible(false); |
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100 | undoTree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION); |
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101 | undoTree.setShowsRootHandles(true); |
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102 | undoTree.expandRow(0); |
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103 | undoTree.setCellRenderer(new CommandCellRenderer()); |
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104 | undoSelectionListener = new UndoRedoSelectionListener(undoTree); |
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105 | undoTree.getSelectionModel().addTreeSelectionListener(undoSelectionListener); |
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106 | InputMapUtils.unassignCtrlShiftUpDown(undoTree, JComponent.WHEN_FOCUSED); |
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107 | |
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108 | redoTree.addMouseListener(new MouseEventHandler()); |
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109 | redoTree.setRootVisible(false); |
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110 | redoTree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION); |
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111 | redoTree.setShowsRootHandles(true); |
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112 | redoTree.expandRow(0); |
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113 | redoTree.setCellRenderer(new CommandCellRenderer()); |
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114 | redoSelectionListener = new UndoRedoSelectionListener(redoTree); |
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115 | redoTree.getSelectionModel().addTreeSelectionListener(redoSelectionListener); |
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116 | InputMapUtils.unassignCtrlShiftUpDown(redoTree, JComponent.WHEN_FOCUSED); |
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117 | |
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118 | JPanel treesPanel = new JPanel(new GridBagLayout()); |
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119 | |
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120 | treesPanel.add(spacer, GBC.eol()); |
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121 | spacer.setVisible(false); |
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122 | treesPanel.add(undoTree, GBC.eol().fill(GBC.HORIZONTAL)); |
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123 | separator.setVisible(false); |
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124 | treesPanel.add(separator, GBC.eol().fill(GBC.HORIZONTAL)); |
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125 | treesPanel.add(redoTree, GBC.eol().fill(GBC.HORIZONTAL)); |
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126 | treesPanel.add(Box.createRigidArea(new Dimension(0, 0)), GBC.std().weight(0, 1)); |
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127 | treesPanel.setBackground(redoTree.getBackground()); |
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128 | |
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129 | wireUpdateEnabledStateUpdater(selectAction, undoTree); |
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130 | wireUpdateEnabledStateUpdater(selectAction, redoTree); |
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131 | |
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132 | UndoRedoAction undoAction = new UndoRedoAction(UndoRedoType.UNDO); |
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133 | wireUpdateEnabledStateUpdater(undoAction, undoTree); |
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134 | |
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135 | UndoRedoAction redoAction = new UndoRedoAction(UndoRedoType.REDO); |
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136 | wireUpdateEnabledStateUpdater(redoAction, redoTree); |
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137 | |
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138 | scrollPane = (JScrollPane) createLayout(treesPanel, true, Arrays.asList( |
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139 | new SideButton(selectAction), |
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140 | new SideButton(undoAction), |
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141 | new SideButton(redoAction) |
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142 | )); |
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143 | |
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144 | InputMapUtils.addEnterAction(undoTree, selectAndZoomAction); |
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145 | InputMapUtils.addEnterAction(redoTree, selectAndZoomAction); |
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146 | } |
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147 | |
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148 | private static class CommandCellRenderer extends DefaultTreeCellRenderer { |
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149 | @Override |
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150 | public Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded, boolean leaf, int row, |
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151 | boolean hasFocus) { |
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152 | super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus); |
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153 | DefaultMutableTreeNode v = (DefaultMutableTreeNode) value; |
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154 | if (v.getUserObject() instanceof JLabel) { |
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155 | JLabel l = (JLabel) v.getUserObject(); |
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156 | setIcon(l.getIcon()); |
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157 | setText(l.getText()); |
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158 | } |
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159 | return this; |
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160 | } |
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161 | } |
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162 | |
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163 | private void updateTitle() { |
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164 | int undo = undoTreeModel.getChildCount(undoTreeModel.getRoot()); |
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165 | int redo = redoTreeModel.getChildCount(redoTreeModel.getRoot()); |
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166 | if (undo > 0 || redo > 0) { |
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167 | setTitle(tr("Command Stack: Undo: {0} / Redo: {1}", undo, redo)); |
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168 | } else { |
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169 | setTitle(tr("Command Stack")); |
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170 | } |
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171 | } |
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172 | |
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173 | /** |
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174 | * Selection listener for undo and redo area. |
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175 | * If one is clicked, takes away the selection from the other, so |
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176 | * it behaves as if it was one component. |
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177 | */ |
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178 | private class UndoRedoSelectionListener implements TreeSelectionListener { |
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179 | private final JTree source; |
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180 | |
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181 | UndoRedoSelectionListener(JTree source) { |
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182 | this.source = source; |
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183 | } |
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184 | |
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185 | @Override |
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186 | public void valueChanged(TreeSelectionEvent e) { |
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187 | if (source == undoTree) { |
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188 | redoTree.getSelectionModel().removeTreeSelectionListener(redoSelectionListener); |
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189 | redoTree.clearSelection(); |
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190 | redoTree.getSelectionModel().addTreeSelectionListener(redoSelectionListener); |
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191 | } |
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192 | if (source == redoTree) { |
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193 | undoTree.getSelectionModel().removeTreeSelectionListener(undoSelectionListener); |
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194 | undoTree.clearSelection(); |
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195 | undoTree.getSelectionModel().addTreeSelectionListener(undoSelectionListener); |
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196 | } |
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197 | } |
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198 | } |
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199 | |
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200 | /** |
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201 | * Wires updater for enabled state to the events. Also updates dialog title if needed. |
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202 | * @param updater updater |
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203 | * @param tree tree on which wire updater |
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204 | */ |
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205 | protected void wireUpdateEnabledStateUpdater(final IEnabledStateUpdating updater, JTree tree) { |
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206 | addShowNotifyListener(updater); |
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207 | |
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208 | tree.addTreeSelectionListener(e -> updater.updateEnabledState()); |
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209 | |
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210 | tree.getModel().addTreeModelListener(new TreeModelListener() { |
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211 | @Override |
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212 | public void treeNodesChanged(TreeModelEvent e) { |
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213 | updater.updateEnabledState(); |
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214 | updateTitle(); |
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215 | } |
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216 | |
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217 | @Override |
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218 | public void treeNodesInserted(TreeModelEvent e) { |
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219 | treeNodesChanged(e); |
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220 | } |
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221 | |
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222 | @Override |
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223 | public void treeNodesRemoved(TreeModelEvent e) { |
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224 | treeNodesChanged(e); |
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225 | } |
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226 | |
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227 | @Override |
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228 | public void treeStructureChanged(TreeModelEvent e) { |
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229 | treeNodesChanged(e); |
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230 | } |
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231 | }); |
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232 | } |
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233 | |
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234 | @Override |
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235 | public void showNotify() { |
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236 | buildTrees(); |
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237 | for (IEnabledStateUpdating listener : showNotifyListener) { |
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238 | listener.updateEnabledState(); |
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239 | } |
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240 | UndoRedoHandler.getInstance().addCommandQueuePreciseListener(this); |
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241 | } |
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242 | |
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243 | /** |
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244 | * Simple listener setup to update the button enabled state when the side dialog shows. |
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245 | */ |
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246 | private final transient Set<IEnabledStateUpdating> showNotifyListener = new LinkedHashSet<>(); |
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247 | |
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248 | private void addShowNotifyListener(IEnabledStateUpdating listener) { |
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249 | showNotifyListener.add(listener); |
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250 | } |
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251 | |
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252 | @Override |
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253 | public void hideNotify() { |
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254 | undoRoot = new DefaultMutableTreeNode(); |
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255 | redoRoot = new DefaultMutableTreeNode(); |
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256 | undoTreeModel.setRoot(undoRoot); |
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257 | redoTreeModel.setRoot(redoRoot); |
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258 | UndoRedoHandler.getInstance().removeCommandQueuePreciseListener(this); |
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259 | } |
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260 | |
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261 | /** |
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262 | * Build the trees of undo and redo commands (initially or when |
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263 | * they have changed). |
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264 | */ |
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265 | private void buildTrees() { |
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266 | setTitle(tr("Command Stack")); |
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267 | buildUndoTree(); |
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268 | buildRedoTree(); |
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269 | ensureTreesConsistency(); |
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270 | } |
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271 | |
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272 | private void buildUndoTree() { |
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273 | List<Command> undoCommands = UndoRedoHandler.getInstance().commands; |
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274 | undoRoot = new DefaultMutableTreeNode(); |
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275 | for (int i = 0; i < undoCommands.size(); ++i) { |
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276 | undoRoot.add(getNodeForCommand(undoCommands.get(i))); |
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277 | } |
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278 | undoTreeModel.setRoot(undoRoot); |
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279 | } |
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280 | |
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281 | private void buildRedoTree() { |
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282 | List<Command> redoCommands = UndoRedoHandler.getInstance().redoCommands; |
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283 | redoRoot = new DefaultMutableTreeNode(); |
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284 | for (int i = 0; i < redoCommands.size(); ++i) { |
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285 | redoRoot.add(getNodeForCommand(redoCommands.get(i))); |
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286 | } |
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287 | redoTreeModel.setRoot(redoRoot); |
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288 | } |
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289 | |
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290 | private void ensureTreesConsistency() { |
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291 | List<Command> undoCommands = UndoRedoHandler.getInstance().commands; |
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292 | List<Command> redoCommands = UndoRedoHandler.getInstance().redoCommands; |
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293 | if (redoTreeModel.getChildCount(redoRoot) > 0) { |
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294 | redoTree.scrollRowToVisible(0); |
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295 | scrollPane.getHorizontalScrollBar().setValue(0); |
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296 | } |
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297 | |
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298 | separator.setVisible(!undoCommands.isEmpty() || !redoCommands.isEmpty()); |
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299 | spacer.setVisible(undoCommands.isEmpty() && !redoCommands.isEmpty()); |
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300 | |
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301 | // if one tree is empty, move selection to the other |
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302 | switch (lastOperation) { |
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303 | case UNDO: |
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304 | if (undoCommands.isEmpty()) { |
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305 | lastOperation = UndoRedoType.REDO; |
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306 | } |
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307 | break; |
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308 | case REDO: |
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309 | if (redoCommands.isEmpty()) { |
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310 | lastOperation = UndoRedoType.UNDO; |
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311 | } |
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312 | break; |
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313 | } |
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314 | |
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315 | // select the next command to undo/redo |
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316 | switch (lastOperation) { |
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317 | case UNDO: |
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318 | undoTree.setSelectionRow(undoTree.getRowCount()-1); |
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319 | break; |
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320 | case REDO: |
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321 | redoTree.setSelectionRow(0); |
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322 | break; |
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323 | } |
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324 | |
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325 | undoTree.scrollRowToVisible(undoTreeModel.getChildCount(undoRoot)-1); |
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326 | scrollPane.getHorizontalScrollBar().setValue(0); |
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327 | } |
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328 | |
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329 | /** |
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330 | * Wraps a command in a CommandListMutableTreeNode. |
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331 | * Recursively adds child commands. |
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332 | * @param c the command |
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333 | * @return the resulting node |
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334 | */ |
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335 | protected CommandListMutableTreeNode getNodeForCommand(PseudoCommand c) { |
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336 | CommandListMutableTreeNode node = new CommandListMutableTreeNode(c); |
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337 | if (c.getChildren() != null) { |
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338 | List<PseudoCommand> children = new ArrayList<>(c.getChildren()); |
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339 | for (int i = 0; i < children.size(); ++i) { |
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340 | node.add(getNodeForCommand(children.get(i))); |
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341 | } |
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342 | } |
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343 | return node; |
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344 | } |
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345 | |
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346 | /** |
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347 | * Return primitives that are affected by some command |
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348 | * @param path GUI elements |
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349 | * @return collection of affected primitives, onluy usable ones |
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350 | */ |
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351 | protected static Collection<? extends OsmPrimitive> getAffectedPrimitives(TreePath path) { |
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352 | PseudoCommand c = ((CommandListMutableTreeNode) path.getLastPathComponent()).getCommand(); |
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353 | final OsmDataLayer currentLayer = MainApplication.getLayerManager().getEditLayer(); |
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354 | return new SubclassFilteredCollection<>( |
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355 | c.getParticipatingPrimitives(), |
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356 | o -> { |
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357 | OsmPrimitive p = currentLayer.data.getPrimitiveById(o); |
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358 | return p != null && p.isUsable(); |
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359 | } |
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360 | ); |
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361 | } |
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362 | |
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363 | @Override |
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364 | public void cleaned(CommandQueueCleanedEvent e) { |
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365 | if (isVisible()) { |
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366 | buildTrees(); |
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367 | } |
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368 | } |
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369 | |
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370 | @Override |
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371 | public void commandAdded(CommandAddedEvent e) { |
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372 | if (isVisible()) { |
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373 | undoRoot.add(getNodeForCommand(e.getCommand())); |
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374 | undoTreeModel.nodeStructureChanged(undoRoot); |
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375 | ensureTreesConsistency(); |
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376 | } |
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377 | } |
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378 | |
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379 | @Override |
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380 | public void commandUndone(CommandUndoneEvent e) { |
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381 | if (isVisible()) { |
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382 | swapNode(undoTreeModel, undoRoot, undoRoot.getChildCount() - 1, redoTreeModel, redoRoot, 0); |
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383 | } |
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384 | } |
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385 | |
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386 | @Override |
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387 | public void commandRedone(CommandRedoneEvent e) { |
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388 | if (isVisible()) { |
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389 | swapNode(redoTreeModel, redoRoot, 0, undoTreeModel, undoRoot, undoRoot.getChildCount()); |
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390 | } |
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391 | } |
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392 | |
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393 | private void swapNode(DefaultTreeModel srcModel, DefaultMutableTreeNode srcRoot, int srcIndex, |
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394 | DefaultTreeModel dstModel, DefaultMutableTreeNode dstRoot, int dstIndex) { |
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395 | MutableTreeNode node = (MutableTreeNode) srcRoot.getChildAt(srcIndex); |
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396 | srcRoot.remove(node); |
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397 | srcModel.nodeStructureChanged(srcRoot); |
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398 | dstRoot.insert(node, dstIndex); |
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399 | dstModel.nodeStructureChanged(dstRoot); |
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400 | ensureTreesConsistency(); |
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401 | } |
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402 | |
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403 | /** |
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404 | * Action that selects the objects that take part in a command. |
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405 | */ |
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406 | public class SelectAction extends AbstractAction implements IEnabledStateUpdating { |
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407 | |
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408 | /** |
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409 | * Constructs a new {@code SelectAction}. |
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410 | */ |
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411 | public SelectAction() { |
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412 | putValue(NAME, tr("Select")); |
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413 | putValue(SHORT_DESCRIPTION, tr("Selects the objects that take part in this command (unless currently deleted)")); |
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414 | new ImageProvider("dialogs", "select").getResource().attachImageIcon(this, true); |
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415 | } |
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416 | |
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417 | @Override |
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418 | public void actionPerformed(ActionEvent e) { |
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419 | TreePath path; |
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420 | if (!undoTree.isSelectionEmpty()) { |
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421 | path = undoTree.getSelectionPath(); |
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422 | } else if (!redoTree.isSelectionEmpty()) { |
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423 | path = redoTree.getSelectionPath(); |
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424 | } else |
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425 | throw new IllegalStateException(); |
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426 | |
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427 | DataSet dataSet = MainApplication.getLayerManager().getEditDataSet(); |
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428 | if (dataSet == null) return; |
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429 | dataSet.setSelected(getAffectedPrimitives(path)); |
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430 | } |
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431 | |
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432 | @Override |
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433 | public void updateEnabledState() { |
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434 | setEnabled(!undoTree.isSelectionEmpty() || !redoTree.isSelectionEmpty()); |
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435 | } |
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436 | } |
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437 | |
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438 | /** |
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439 | * Action that selects the objects that take part in a command, then zoom to them. |
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440 | */ |
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441 | public class SelectAndZoomAction extends SelectAction { |
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442 | /** |
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443 | * Constructs a new {@code SelectAndZoomAction}. |
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444 | */ |
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445 | public SelectAndZoomAction() { |
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446 | putValue(NAME, tr("Select and zoom")); |
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447 | putValue(SHORT_DESCRIPTION, |
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448 | tr("Selects the objects that take part in this command (unless currently deleted), then and zooms to it")); |
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449 | new ImageProvider("dialogs/autoscale", "selection").getResource().attachImageIcon(this, true); |
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450 | } |
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451 | |
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452 | @Override |
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453 | public void actionPerformed(ActionEvent e) { |
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454 | super.actionPerformed(e); |
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455 | AutoScaleAction.autoScale("selection"); |
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456 | } |
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457 | } |
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458 | |
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459 | /** |
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460 | * undo / redo switch to reduce duplicate code |
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461 | */ |
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462 | protected enum UndoRedoType { |
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463 | UNDO, |
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464 | REDO |
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465 | } |
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466 | |
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467 | /** |
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468 | * Action to undo or redo all commands up to (and including) the seleced item. |
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469 | */ |
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470 | protected class UndoRedoAction extends AbstractAction implements IEnabledStateUpdating { |
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471 | private final UndoRedoType type; |
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472 | private final JTree tree; |
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473 | |
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474 | /** |
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475 | * constructor |
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476 | * @param type decide whether it is an undo action or a redo action |
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477 | */ |
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478 | public UndoRedoAction(UndoRedoType type) { |
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479 | this.type = type; |
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480 | if (UndoRedoType.UNDO == type) { |
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481 | tree = undoTree; |
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482 | putValue(NAME, tr("Undo")); |
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483 | putValue(SHORT_DESCRIPTION, tr("Undo the selected and all later commands")); |
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484 | new ImageProvider("undo").getResource().attachImageIcon(this, true); |
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485 | } else { |
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486 | tree = redoTree; |
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487 | putValue(NAME, tr("Redo")); |
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488 | putValue(SHORT_DESCRIPTION, tr("Redo the selected and all earlier commands")); |
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489 | new ImageProvider("redo").getResource().attachImageIcon(this, true); |
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490 | } |
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491 | } |
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492 | |
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493 | @Override |
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494 | public void actionPerformed(ActionEvent e) { |
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495 | lastOperation = type; |
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496 | TreePath path = tree.getSelectionPath(); |
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497 | |
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498 | // we can only undo top level commands |
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499 | if (path.getPathCount() != 2) |
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500 | throw new IllegalStateException(); |
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501 | |
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502 | int idx = ((CommandListMutableTreeNode) path.getLastPathComponent()).getIndex(); |
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503 | |
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504 | // calculate the number of commands to undo/redo; then do it |
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505 | switch (type) { |
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506 | case UNDO: |
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507 | int numUndo = ((DefaultMutableTreeNode) undoTreeModel.getRoot()).getChildCount() - idx; |
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508 | UndoRedoHandler.getInstance().undo(numUndo); |
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509 | break; |
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510 | case REDO: |
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511 | int numRedo = idx+1; |
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512 | UndoRedoHandler.getInstance().redo(numRedo); |
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513 | break; |
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514 | } |
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515 | MainApplication.getMap().repaint(); |
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516 | } |
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517 | |
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518 | @Override |
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519 | public void updateEnabledState() { |
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520 | // do not allow execution if nothing is selected or a sub command was selected |
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521 | setEnabled(!tree.isSelectionEmpty() && tree.getSelectionPath().getPathCount() == 2); |
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522 | } |
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523 | } |
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524 | |
---|
525 | class MouseEventHandler extends PopupMenuLauncher { |
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526 | |
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527 | MouseEventHandler() { |
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528 | super(new CommandStackPopup()); |
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529 | } |
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530 | |
---|
531 | @Override |
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532 | public void mouseClicked(MouseEvent evt) { |
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533 | if (isDoubleClick(evt)) { |
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534 | selectAndZoomAction.actionPerformed(null); |
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535 | } |
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536 | } |
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537 | } |
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538 | |
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539 | private class CommandStackPopup extends JPopupMenu { |
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540 | CommandStackPopup() { |
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541 | add(selectAction); |
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542 | add(selectAndZoomAction); |
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543 | } |
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544 | } |
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545 | } |
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