[4595] | 1 | // License: GPL. For details, see LICENSE file.
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| 2 | package org.openstreetmap.josm.tools;
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| 3 |
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[4604] | 4 | import static org.openstreetmap.josm.tools.I18n.tr;
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| 5 |
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[4595] | 6 | import java.awt.KeyEventDispatcher;
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| 7 | import java.awt.KeyboardFocusManager;
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| 8 | import java.awt.event.ActionEvent;
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| 9 | import java.awt.event.KeyEvent;
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[5018] | 10 | import java.util.HashMap;
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| 11 | import java.util.Map;
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[4595] | 12 | import java.util.Timer;
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| 13 | import java.util.TimerTask;
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| 14 |
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| 15 | import javax.swing.AbstractAction;
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| 16 | import javax.swing.Action;
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| 17 | import javax.swing.JMenuItem;
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[4615] | 18 | import javax.swing.JPanel;
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[4595] | 19 | import javax.swing.JPopupMenu;
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| 20 | import javax.swing.KeyStroke;
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[4753] | 21 | import javax.swing.SwingUtilities;
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[4615] | 22 | import javax.swing.event.PopupMenuEvent;
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| 23 | import javax.swing.event.PopupMenuListener;
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[4595] | 24 |
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| 25 | import org.openstreetmap.josm.Main;
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[12630] | 26 | import org.openstreetmap.josm.gui.MainApplication;
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[4595] | 27 | import org.openstreetmap.josm.tools.MultikeyShortcutAction.MultikeyInfo;
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| 28 |
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[6362] | 29 | public final class MultikeyActionsHandler {
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[4595] | 30 |
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[4604] | 31 | private static final long DIALOG_DELAY = 1000;
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[6223] | 32 | private static final String STATUS_BAR_ID = "multikeyShortcut";
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[4595] | 33 |
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[9078] | 34 | private final Map<MultikeyShortcutAction, MyAction> myActions = new HashMap<>();
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[5463] | 35 |
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[11366] | 36 | static final class ShowLayersPopupWorker implements Runnable {
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| 37 | static final class StatusLinePopupMenuListener implements PopupMenuListener {
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| 38 | @Override
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| 39 | public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
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| 40 | // Do nothing
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| 41 | }
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| 42 |
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| 43 | @Override
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| 44 | public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
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[12630] | 45 | MainApplication.getMap().statusLine.resetHelpText(STATUS_BAR_ID);
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[11366] | 46 | }
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| 47 |
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| 48 | @Override
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| 49 | public void popupMenuCanceled(PopupMenuEvent e) {
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| 50 | // Do nothing
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| 51 | }
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| 52 | }
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| 53 |
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[8509] | 54 | private final MyAction action;
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| 55 |
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[11366] | 56 | ShowLayersPopupWorker(MyAction action) {
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[8509] | 57 | this.action = action;
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| 58 | }
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| 59 |
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| 60 | @Override
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| 61 | public void run() {
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| 62 | JPopupMenu layers = new JPopupMenu();
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| 63 |
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| 64 | JMenuItem lbTitle = new JMenuItem((String) action.action.getValue(Action.SHORT_DESCRIPTION));
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| 65 | lbTitle.setEnabled(false);
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| 66 | JPanel pnTitle = new JPanel();
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| 67 | pnTitle.add(lbTitle);
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| 68 | layers.add(pnTitle);
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| 69 |
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| 70 | char repeatKey = (char) action.shortcut.getKeyStroke().getKeyCode();
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| 71 | boolean repeatKeyUsed = false;
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| 72 |
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| 73 | for (final MultikeyInfo info: action.action.getMultikeyCombinations()) {
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| 74 |
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| 75 | if (info.getShortcut() == repeatKey) {
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| 76 | repeatKeyUsed = true;
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| 77 | }
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| 78 |
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| 79 | JMenuItem item = new JMenuItem(formatMenuText(action.shortcut.getKeyStroke(),
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| 80 | String.valueOf(info.getShortcut()), info.getDescription()));
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| 81 | item.setMnemonic(info.getShortcut());
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[10616] | 82 | item.addActionListener(e -> action.action.executeMultikeyAction(info.getIndex(), false));
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[8509] | 83 | layers.add(item);
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| 84 | }
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| 85 |
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| 86 | if (!repeatKeyUsed) {
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| 87 | MultikeyInfo lastLayer = action.action.getLastMultikeyAction();
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| 88 | if (lastLayer != null) {
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| 89 | JMenuItem repeateItem = new JMenuItem(formatMenuText(action.shortcut.getKeyStroke(),
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| 90 | KeyEvent.getKeyText(action.shortcut.getKeyStroke().getKeyCode()),
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| 91 | "Repeat " + lastLayer.getDescription()));
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| 92 | repeateItem.setMnemonic(action.shortcut.getKeyStroke().getKeyCode());
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[10616] | 93 | repeateItem.addActionListener(e -> action.action.executeMultikeyAction(-1, true));
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[8509] | 94 | layers.add(repeateItem);
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| 95 | }
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| 96 | }
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[11366] | 97 | layers.addPopupMenuListener(new StatusLinePopupMenuListener());
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[8509] | 98 | layers.show(Main.parent, Integer.MAX_VALUE, Integer.MAX_VALUE);
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| 99 | layers.setLocation(Main.parent.getX() + Main.parent.getWidth() - layers.getWidth(),
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[11366] | 100 | Main.parent.getY() + Main.parent.getHeight() - layers.getHeight());
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[8509] | 101 | }
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| 102 | }
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| 103 |
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[4595] | 104 | private class MyKeyEventDispatcher implements KeyEventDispatcher {
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| 105 | @Override
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| 106 | public boolean dispatchKeyEvent(KeyEvent e) {
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| 107 |
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| 108 | if (e.getWhen() == lastTimestamp)
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| 109 | return false;
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| 110 |
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| 111 | if (lastAction != null && e.getID() == KeyEvent.KEY_PRESSED) {
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[4604] | 112 | int index = getIndex(e.getKeyCode());
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| 113 | if (index >= 0) {
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[4999] | 114 | lastAction.action.executeMultikeyAction(index, e.getKeyCode() == lastAction.shortcut.getKeyStroke().getKeyCode());
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[4595] | 115 | }
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| 116 | lastAction = null;
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[12630] | 117 | MainApplication.getMap().statusLine.resetHelpText(STATUS_BAR_ID);
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[4595] | 118 | return true;
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| 119 | }
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| 120 | return false;
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| 121 | }
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| 122 |
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[4604] | 123 | private int getIndex(int lastKey) {
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| 124 | if (lastKey >= KeyEvent.VK_1 && lastKey <= KeyEvent.VK_9)
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| 125 | return lastKey - KeyEvent.VK_1;
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| 126 | else if (lastKey == KeyEvent.VK_0)
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| 127 | return 9;
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[4595] | 128 | else if (lastKey >= KeyEvent.VK_A && lastKey <= KeyEvent.VK_Z)
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| 129 | return lastKey - KeyEvent.VK_A + 10;
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| 130 | else
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| 131 | return -1;
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| 132 | }
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| 133 | }
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| 134 |
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| 135 | private class MyAction extends AbstractAction {
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| 136 |
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[8308] | 137 | private final transient MultikeyShortcutAction action;
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| 138 | private final transient Shortcut shortcut;
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[4595] | 139 |
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| 140 | MyAction(MultikeyShortcutAction action) {
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| 141 | this.action = action;
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[4999] | 142 | this.shortcut = action.getMultikeyShortcut();
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[4595] | 143 | }
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| 144 |
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| 145 | @Override
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| 146 | public void actionPerformed(ActionEvent e) {
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| 147 | lastTimestamp = e.getWhen();
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| 148 | lastAction = this;
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| 149 | timer.schedule(new MyTimerTask(lastTimestamp, lastAction), DIALOG_DELAY);
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[12630] | 150 | MainApplication.getMap().statusLine.setHelpText(STATUS_BAR_ID, tr("{0}... [please type its number]", (String) action.getValue(SHORT_DESCRIPTION)));
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[4595] | 151 | }
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| 152 |
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| 153 | @Override
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| 154 | public String toString() {
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[8376] | 155 | return "MultikeyAction" + action;
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[4595] | 156 | }
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| 157 | }
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| 158 |
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| 159 | private class MyTimerTask extends TimerTask {
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| 160 | private final long lastTimestamp;
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| 161 | private final MyAction lastAction;
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| 162 |
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| 163 | MyTimerTask(long lastTimestamp, MyAction lastAction) {
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| 164 | this.lastTimestamp = lastTimestamp;
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| 165 | this.lastAction = lastAction;
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| 166 | }
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| 167 |
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| 168 | @Override
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| 169 | public void run() {
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| 170 | if (lastTimestamp == MultikeyActionsHandler.this.lastTimestamp &&
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| 171 | lastAction == MultikeyActionsHandler.this.lastAction) {
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[8509] | 172 | SwingUtilities.invokeLater(new ShowLayersPopupWorker(lastAction));
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[4595] | 173 | MultikeyActionsHandler.this.lastAction = null;
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| 174 | }
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| 175 | }
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| 176 | }
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| 177 |
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| 178 | private long lastTimestamp;
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| 179 | private MyAction lastAction;
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[9078] | 180 | private final Timer timer;
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[4595] | 181 |
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| 182 | private MultikeyActionsHandler() {
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| 183 | KeyboardFocusManager.getCurrentKeyboardFocusManager().addKeyEventDispatcher(new MyKeyEventDispatcher());
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[8509] | 184 | timer = new Timer();
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[4595] | 185 | }
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| 186 |
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| 187 | private static MultikeyActionsHandler instance;
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| 188 |
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[6223] | 189 | /**
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| 190 | * Replies the unique instance of this class.
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| 191 | * @return The unique instance of this class
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| 192 | */
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[8126] | 193 | public static synchronized MultikeyActionsHandler getInstance() {
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[4595] | 194 | if (instance == null) {
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| 195 | instance = new MultikeyActionsHandler();
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| 196 | }
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| 197 | return instance;
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| 198 | }
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| 199 |
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[8870] | 200 | private static String formatMenuText(KeyStroke keyStroke, String index, String description) {
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[12520] | 201 | String shortcutText = Shortcut.getKeyText(keyStroke) + ',' + index;
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[4595] | 202 |
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| 203 | return "<html><i>" + shortcutText + "</i> " + description;
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| 204 | }
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| 205 |
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[6223] | 206 | /**
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| 207 | * Registers an action and its shortcut
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| 208 | * @param action The action to add
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| 209 | */
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[4595] | 210 | public void addAction(MultikeyShortcutAction action) {
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[6223] | 211 | if (action.getMultikeyShortcut() != null) {
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[4999] | 212 | MyAction myAction = new MyAction(action);
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[5018] | 213 | myActions.put(action, myAction);
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[12639] | 214 | MainApplication.registerActionShortcut(myAction, myAction.shortcut);
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[4999] | 215 | }
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[4595] | 216 | }
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[5463] | 217 |
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[6223] | 218 | /**
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| 219 | * Unregisters an action and its shortcut completely
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| 220 | * @param action The action to remove
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| 221 | */
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[5018] | 222 | public void removeAction(MultikeyShortcutAction action) {
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| 223 | MyAction a = myActions.get(action);
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[8510] | 224 | if (a != null) {
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[12639] | 225 | MainApplication.unregisterActionShortcut(a, a.shortcut);
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[5463] | 226 | myActions.remove(action);
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[5018] | 227 | }
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| 228 | }
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[4595] | 229 | }
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