[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.ActionListener;
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| 10 | import java.awt.event.KeyEvent;
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[5018] | 11 | import java.util.HashMap;
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| 12 | import java.util.Map;
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[4595] | 13 | import java.util.Timer;
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| 14 | import java.util.TimerTask;
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| 15 |
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| 16 | import javax.swing.AbstractAction;
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| 17 | import javax.swing.Action;
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| 18 | import javax.swing.JMenuItem;
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[4615] | 19 | import javax.swing.JPanel;
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[4595] | 20 | import javax.swing.JPopupMenu;
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| 21 | import javax.swing.KeyStroke;
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[4753] | 22 | import javax.swing.SwingUtilities;
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[4615] | 23 | import javax.swing.event.PopupMenuEvent;
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| 24 | import javax.swing.event.PopupMenuListener;
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[4595] | 25 |
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| 26 | import org.openstreetmap.josm.Main;
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| 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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[8509] | 36 | private final class ShowLayersPopupWorker implements Runnable {
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| 37 | private final MyAction action;
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| 38 |
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| 39 | private ShowLayersPopupWorker(MyAction action) {
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| 40 | this.action = action;
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| 41 | }
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| 42 |
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| 43 | @Override
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| 44 | public void run() {
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| 45 | JPopupMenu layers = new JPopupMenu();
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| 46 |
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| 47 | JMenuItem lbTitle = new JMenuItem((String) action.action.getValue(Action.SHORT_DESCRIPTION));
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| 48 | lbTitle.setEnabled(false);
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| 49 | JPanel pnTitle = new JPanel();
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| 50 | pnTitle.add(lbTitle);
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| 51 | layers.add(pnTitle);
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| 52 |
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| 53 | char repeatKey = (char) action.shortcut.getKeyStroke().getKeyCode();
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| 54 | boolean repeatKeyUsed = false;
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| 55 |
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| 56 | for (final MultikeyInfo info: action.action.getMultikeyCombinations()) {
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| 57 |
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| 58 | if (info.getShortcut() == repeatKey) {
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| 59 | repeatKeyUsed = true;
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| 60 | }
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| 61 |
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| 62 | JMenuItem item = new JMenuItem(formatMenuText(action.shortcut.getKeyStroke(),
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| 63 | String.valueOf(info.getShortcut()), info.getDescription()));
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| 64 | item.setMnemonic(info.getShortcut());
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| 65 | item.addActionListener(new ActionListener() {
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| 66 | @Override
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| 67 | public void actionPerformed(ActionEvent e) {
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| 68 | action.action.executeMultikeyAction(info.getIndex(), false);
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| 69 | }
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| 70 | });
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| 71 | layers.add(item);
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| 72 | }
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| 73 |
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| 74 | if (!repeatKeyUsed) {
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| 75 | MultikeyInfo lastLayer = action.action.getLastMultikeyAction();
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| 76 | if (lastLayer != null) {
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| 77 | JMenuItem repeateItem = new JMenuItem(formatMenuText(action.shortcut.getKeyStroke(),
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| 78 | KeyEvent.getKeyText(action.shortcut.getKeyStroke().getKeyCode()),
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| 79 | "Repeat " + lastLayer.getDescription()));
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| 80 | repeateItem.setMnemonic(action.shortcut.getKeyStroke().getKeyCode());
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| 81 | repeateItem.addActionListener(new ActionListener() {
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| 82 | @Override
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| 83 | public void actionPerformed(ActionEvent e) {
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| 84 | action.action.executeMultikeyAction(-1, true);
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| 85 | }
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| 86 | });
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| 87 | layers.add(repeateItem);
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| 88 | }
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| 89 | }
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| 90 | layers.addPopupMenuListener(new PopupMenuListener() {
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| 91 |
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| 92 | @Override
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| 93 | public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
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| 94 | // Do nothing
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| 95 | }
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| 96 |
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| 97 | @Override
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| 98 | public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
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| 99 | Main.map.statusLine.resetHelpText(STATUS_BAR_ID);
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| 100 | }
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| 101 |
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| 102 | @Override
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| 103 | public void popupMenuCanceled(PopupMenuEvent e) {
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| 104 | // Do nothing
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| 105 | }
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| 106 | });
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| 107 |
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| 108 | layers.show(Main.parent, Integer.MAX_VALUE, Integer.MAX_VALUE);
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| 109 | layers.setLocation(Main.parent.getX() + Main.parent.getWidth() - layers.getWidth(),
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| 110 | Main.parent.getY() + Main.parent.getHeight() - layers.getHeight());
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| 111 | }
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| 112 | }
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| 113 |
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[4595] | 114 | private class MyKeyEventDispatcher implements KeyEventDispatcher {
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| 115 | @Override
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| 116 | public boolean dispatchKeyEvent(KeyEvent e) {
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| 117 |
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| 118 | if (e.getWhen() == lastTimestamp)
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| 119 | return false;
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| 120 |
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| 121 | if (lastAction != null && e.getID() == KeyEvent.KEY_PRESSED) {
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[4604] | 122 | int index = getIndex(e.getKeyCode());
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| 123 | if (index >= 0) {
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[4999] | 124 | lastAction.action.executeMultikeyAction(index, e.getKeyCode() == lastAction.shortcut.getKeyStroke().getKeyCode());
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[4595] | 125 | }
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| 126 | lastAction = null;
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[4604] | 127 | Main.map.statusLine.resetHelpText(STATUS_BAR_ID);
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[4595] | 128 | return true;
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| 129 | }
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| 130 | return false;
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| 131 | }
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| 132 |
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[4604] | 133 | private int getIndex(int lastKey) {
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| 134 | if (lastKey >= KeyEvent.VK_1 && lastKey <= KeyEvent.VK_9)
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| 135 | return lastKey - KeyEvent.VK_1;
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| 136 | else if (lastKey == KeyEvent.VK_0)
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| 137 | return 9;
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[4595] | 138 | else if (lastKey >= KeyEvent.VK_A && lastKey <= KeyEvent.VK_Z)
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| 139 | return lastKey - KeyEvent.VK_A + 10;
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| 140 | else
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| 141 | return -1;
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| 142 | }
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| 143 | }
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| 144 |
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| 145 | private class MyAction extends AbstractAction {
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| 146 |
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[8308] | 147 | private final transient MultikeyShortcutAction action;
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| 148 | private final transient Shortcut shortcut;
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[4595] | 149 |
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| 150 | MyAction(MultikeyShortcutAction action) {
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| 151 | this.action = action;
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[4999] | 152 | this.shortcut = action.getMultikeyShortcut();
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[4595] | 153 | }
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| 154 |
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| 155 | @Override
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| 156 | public void actionPerformed(ActionEvent e) {
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| 157 | lastTimestamp = e.getWhen();
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| 158 | lastAction = this;
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| 159 | timer.schedule(new MyTimerTask(lastTimestamp, lastAction), DIALOG_DELAY);
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[4604] | 160 | Main.map.statusLine.setHelpText(STATUS_BAR_ID, tr("{0}... [please type its number]", (String) action.getValue(SHORT_DESCRIPTION)));
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[4595] | 161 | }
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| 162 |
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| 163 | @Override
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| 164 | public String toString() {
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[8376] | 165 | return "MultikeyAction" + action;
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[4595] | 166 | }
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| 167 | }
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| 168 |
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| 169 | private class MyTimerTask extends TimerTask {
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| 170 | private final long lastTimestamp;
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| 171 | private final MyAction lastAction;
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| 172 |
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| 173 | MyTimerTask(long lastTimestamp, MyAction lastAction) {
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| 174 | this.lastTimestamp = lastTimestamp;
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| 175 | this.lastAction = lastAction;
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| 176 | }
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| 177 |
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| 178 | @Override
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| 179 | public void run() {
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| 180 | if (lastTimestamp == MultikeyActionsHandler.this.lastTimestamp &&
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| 181 | lastAction == MultikeyActionsHandler.this.lastAction) {
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[8509] | 182 | SwingUtilities.invokeLater(new ShowLayersPopupWorker(lastAction));
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[4595] | 183 | MultikeyActionsHandler.this.lastAction = null;
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| 184 | }
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| 185 | }
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| 186 | }
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| 187 |
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| 188 | private long lastTimestamp;
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| 189 | private MyAction lastAction;
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[9078] | 190 | private final Timer timer;
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[4595] | 191 |
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| 192 | private MultikeyActionsHandler() {
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| 193 | KeyboardFocusManager.getCurrentKeyboardFocusManager().addKeyEventDispatcher(new MyKeyEventDispatcher());
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[8509] | 194 | timer = new Timer();
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[4595] | 195 | }
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| 196 |
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| 197 | private static MultikeyActionsHandler instance;
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| 198 |
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[6223] | 199 | /**
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| 200 | * Replies the unique instance of this class.
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| 201 | * @return The unique instance of this class
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| 202 | */
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[8126] | 203 | public static synchronized MultikeyActionsHandler getInstance() {
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[4595] | 204 | if (instance == null) {
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| 205 | instance = new MultikeyActionsHandler();
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| 206 | }
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| 207 | return instance;
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| 208 | }
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| 209 |
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[8870] | 210 | private static String formatMenuText(KeyStroke keyStroke, String index, String description) {
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[8846] | 211 | String shortcutText = KeyEvent.getKeyModifiersText(keyStroke.getModifiers()) + '+'
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| 212 | + KeyEvent.getKeyText(keyStroke.getKeyCode()) + ',' + index;
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[4595] | 213 |
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| 214 | return "<html><i>" + shortcutText + "</i> " + description;
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| 215 | }
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| 216 |
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[6223] | 217 | /**
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| 218 | * Registers an action and its shortcut
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| 219 | * @param action The action to add
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| 220 | */
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[4595] | 221 | public void addAction(MultikeyShortcutAction action) {
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[6223] | 222 | if (action.getMultikeyShortcut() != null) {
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[4999] | 223 | MyAction myAction = new MyAction(action);
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[5018] | 224 | myActions.put(action, myAction);
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[4999] | 225 | Main.registerActionShortcut(myAction, myAction.shortcut);
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| 226 | }
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[4595] | 227 | }
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[5463] | 228 |
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[6223] | 229 | /**
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| 230 | * Unregisters an action and its shortcut completely
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| 231 | * @param action The action to remove
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| 232 | */
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[5018] | 233 | public void removeAction(MultikeyShortcutAction action) {
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| 234 | MyAction a = myActions.get(action);
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[8510] | 235 | if (a != null) {
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[5018] | 236 | Main.unregisterActionShortcut(a, a.shortcut);
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[5463] | 237 | myActions.remove(action);
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[5018] | 238 | }
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| 239 | }
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[4595] | 240 | }
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