| 1 | //License: GPL. Copyright 2007 by Immanuel Scholz and others |
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| 2 | package org.openstreetmap.josm.tools; |
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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.event.KeyEvent; |
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| 7 | import java.util.ArrayList; |
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| 8 | import java.util.Arrays; |
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| 9 | import java.util.Collection; |
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| 10 | import java.util.HashMap; |
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| 11 | import java.util.LinkedHashMap; |
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| 12 | import java.util.LinkedList; |
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| 13 | import java.util.List; |
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| 14 | import java.util.Map; |
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| 15 | |
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| 16 | import javax.swing.AbstractAction; |
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| 17 | import javax.swing.AbstractButton; |
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| 18 | import javax.swing.JMenu; |
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| 19 | import javax.swing.JOptionPane; |
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| 20 | import javax.swing.KeyStroke; |
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| 21 | |
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| 22 | import org.openstreetmap.josm.Main; |
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| 23 | |
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| 24 | /** |
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| 25 | * Global shortcut class. |
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| 26 | * |
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| 27 | * Note: This class represents a single shortcut, contains the factory to obtain |
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| 28 | * shortcut objects from, manages shortcuts and shortcut collisions, and |
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| 29 | * finally manages loading and saving shortcuts to/from the preferences. |
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| 30 | * |
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| 31 | * Action authors: You only need the {@see #registerShortcut} factory. Ignore everything |
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| 32 | * else. |
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| 33 | * |
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| 34 | * All: Use only public methods that are also marked to be used. The others are |
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| 35 | * public so the shortcut preferences can use them. |
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| 36 | * |
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| 37 | */ |
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| 38 | public class Shortcut { |
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| 39 | private String shortText; // the unique ID of the shortcut |
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| 40 | private String longText; // a human readable description that will be shown in the preferences |
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| 41 | private int requestedKey; // the key, the caller requested |
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| 42 | private int requestedGroup; // the group, the caller requested |
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| 43 | private int assignedKey; // the key that actually is used |
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| 44 | private int assignedModifier; // the modifiers that are used |
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| 45 | private boolean assignedDefault; // true if it got assigned what was requested. (Note: modifiers will be ignored in favour of group when loading it from the preferences then.) |
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| 46 | private boolean assignedUser; // true if the user changed this shortcut |
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| 47 | private boolean automatic; // true if the user cannot change this shortcut (Note: it also will not be saved into the preferences) |
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| 48 | private boolean reset; // true if the user requested this shortcut to be set to its default value (will happen on next restart, as this shortcut will not be saved to the preferences) |
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| 49 | |
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| 50 | // simple constructor |
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| 51 | private Shortcut(String shortText, String longText, int requestedKey, int requestedGroup, int assignedKey, int assignedModifier, boolean assignedDefault, boolean assignedUser) { |
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| 52 | this.shortText = shortText; |
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| 53 | this.longText = longText; |
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| 54 | this.requestedKey = requestedKey; |
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| 55 | this.requestedGroup = requestedGroup; |
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| 56 | this.assignedKey = assignedKey; |
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| 57 | this.assignedModifier = assignedModifier; |
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| 58 | this.assignedDefault = assignedDefault; |
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| 59 | this.assignedUser = assignedUser; |
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| 60 | this.automatic = false; |
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| 61 | this.reset = false; |
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| 62 | } |
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| 63 | |
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| 64 | public String getShortText() { |
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| 65 | return shortText; |
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| 66 | } |
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| 67 | |
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| 68 | public String getLongText() { |
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| 69 | return longText; |
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| 70 | } |
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| 71 | |
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| 72 | // a shortcut will be renamed when it is handed out again, because the original name |
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| 73 | // may be a dummy |
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| 74 | private void setLongText(String longText) { |
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| 75 | this.longText = longText; |
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| 76 | } |
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| 77 | |
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| 78 | private int getRequestedKey() { |
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| 79 | return requestedKey; |
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| 80 | } |
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| 81 | |
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| 82 | public int getRequestedGroup() { |
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| 83 | return requestedGroup; |
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| 84 | } |
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| 85 | |
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| 86 | public int getAssignedKey() { |
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| 87 | return assignedKey; |
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| 88 | } |
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| 89 | |
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| 90 | public int getAssignedModifier() { |
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| 91 | return assignedModifier; |
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| 92 | } |
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| 93 | |
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| 94 | public boolean getAssignedDefault() { |
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| 95 | return assignedDefault; |
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| 96 | } |
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| 97 | |
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| 98 | public boolean getAssignedUser() { |
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| 99 | return assignedUser; |
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| 100 | } |
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| 101 | |
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| 102 | public boolean getAutomatic() { |
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| 103 | return automatic; |
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| 104 | } |
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| 105 | |
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| 106 | public boolean isChangeable() { |
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| 107 | return !automatic && !shortText.equals("core:none"); |
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| 108 | } |
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| 109 | |
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| 110 | private boolean getReset() { |
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| 111 | return reset; |
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| 112 | } |
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| 113 | |
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| 114 | /** |
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| 115 | * FOR PREF PANE ONLY |
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| 116 | */ |
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| 117 | public void setAutomatic() { |
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| 118 | automatic = true; |
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| 119 | } |
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| 120 | |
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| 121 | /** |
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| 122 | * FOR PREF PANE ONLY |
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| 123 | */ |
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| 124 | public void setAssignedModifier(int assignedModifier) { |
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| 125 | this.assignedModifier = assignedModifier; |
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| 126 | } |
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| 127 | |
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| 128 | /** |
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| 129 | * FOR PREF PANE ONLY |
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| 130 | */ |
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| 131 | public void setAssignedKey(int assignedKey) { |
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| 132 | this.assignedKey = assignedKey; |
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| 133 | } |
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| 134 | |
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| 135 | /** |
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| 136 | * FOR PREF PANE ONLY |
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| 137 | */ |
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| 138 | public void setAssignedUser(boolean assignedUser) { |
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| 139 | this.reset = (this.assignedUser || reset) && !assignedUser; |
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| 140 | if (assignedUser) { |
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| 141 | assignedDefault = false; |
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| 142 | } else if (reset) { |
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| 143 | assignedKey = requestedKey; |
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| 144 | assignedModifier = findModifier(requestedGroup, null); |
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| 145 | } |
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| 146 | this.assignedUser = assignedUser; |
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| 147 | } |
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| 148 | |
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| 149 | /** |
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| 150 | * Use this to register the shortcut with Swing |
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| 151 | */ |
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| 152 | public KeyStroke getKeyStroke() { |
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| 153 | if (assignedModifier != -1) |
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| 154 | return KeyStroke.getKeyStroke(assignedKey, assignedModifier); |
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| 155 | return null; |
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| 156 | } |
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| 157 | |
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| 158 | // create a shortcut object from an string as saved in the preferences |
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| 159 | private Shortcut(String prefString) { |
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| 160 | ArrayList<String> s = (new ArrayList<String>(Main.pref.getCollection(prefString))); |
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| 161 | this.shortText = prefString.substring(15); |
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| 162 | this.longText = s.get(0); |
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| 163 | this.requestedKey = Integer.parseInt(s.get(1)); |
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| 164 | this.requestedGroup = Integer.parseInt(s.get(2)); |
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| 165 | this.assignedKey = Integer.parseInt(s.get(3)); |
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| 166 | this.assignedModifier = Integer.parseInt(s.get(4)); |
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| 167 | this.assignedDefault = Boolean.parseBoolean(s.get(5)); |
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| 168 | this.assignedUser = Boolean.parseBoolean(s.get(6)); |
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| 169 | } |
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| 170 | |
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| 171 | private void saveDefault() { |
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| 172 | Main.pref.getCollection("shortcut.entry."+shortText, Arrays.asList(new String[]{longText, |
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| 173 | String.valueOf(requestedKey), String.valueOf(requestedGroup), String.valueOf(requestedKey), |
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| 174 | String.valueOf(getGroupModifier(requestedGroup)), String.valueOf(true), String.valueOf(false)})); |
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| 175 | } |
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| 176 | |
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| 177 | // get a string that can be put into the preferences |
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| 178 | private boolean save() { |
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| 179 | if (getAutomatic() || getReset() || !getAssignedUser()) { |
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| 180 | return Main.pref.putCollection("shortcut.entry."+shortText, null); |
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| 181 | } else { |
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| 182 | return Main.pref.putCollection("shortcut.entry."+shortText, Arrays.asList(new String[]{longText, |
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| 183 | String.valueOf(requestedKey), String.valueOf(requestedGroup), String.valueOf(assignedKey), |
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| 184 | String.valueOf(assignedModifier), String.valueOf(assignedDefault), String.valueOf(assignedUser)})); |
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| 185 | } |
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| 186 | } |
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| 187 | |
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| 188 | private boolean isSame(int isKey, int isModifier) { |
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| 189 | // an unassigned shortcut is different from any other shortcut |
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| 190 | return isKey == assignedKey && isModifier == assignedModifier && assignedModifier != getGroupModifier(NONE); |
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| 191 | } |
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| 192 | |
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| 193 | public boolean isEvent(KeyEvent e) { |
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| 194 | return getKeyStroke() != null && getKeyStroke().equals( |
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| 195 | KeyStroke.getKeyStroke(e.getKeyCode(), e.getModifiers())); |
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| 196 | } |
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| 197 | |
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| 198 | /** |
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| 199 | * use this to set a menu's mnemonic |
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| 200 | */ |
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| 201 | public void setMnemonic(JMenu menu) { |
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| 202 | if (assignedModifier == getGroupModifier(MNEMONIC) && getKeyStroke() != null && KeyEvent.getKeyText(assignedKey).length() == 1) { |
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| 203 | menu.setMnemonic(KeyEvent.getKeyText(assignedKey).charAt(0)); //getKeyStroke().getKeyChar() seems not to work here |
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| 204 | } |
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| 205 | } |
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| 206 | /** |
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| 207 | * use this to set a buttons's mnemonic |
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| 208 | */ |
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| 209 | public void setMnemonic(AbstractButton button) { |
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| 210 | if (assignedModifier == getGroupModifier(MNEMONIC) && getKeyStroke() != null && KeyEvent.getKeyText(assignedKey).length() == 1) { |
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| 211 | button.setMnemonic(KeyEvent.getKeyText(assignedKey).charAt(0)); //getKeyStroke().getKeyChar() seems not to work here |
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| 212 | } |
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| 213 | } |
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| 214 | /** |
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| 215 | * use this to set a actions's accelerator |
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| 216 | */ |
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| 217 | public void setAccelerator(AbstractAction action) { |
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| 218 | if (getKeyStroke() != null) { |
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| 219 | action.putValue(AbstractAction.ACCELERATOR_KEY, getKeyStroke()); |
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| 220 | } |
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| 221 | } |
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| 222 | |
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| 223 | /** |
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| 224 | * use this to get a human readable text for your shortcut |
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| 225 | */ |
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| 226 | public String getKeyText() { |
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| 227 | KeyStroke keyStroke = getKeyStroke(); |
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| 228 | if (keyStroke == null) return ""; |
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| 229 | String modifText = KeyEvent.getKeyModifiersText(keyStroke.getModifiers()); |
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| 230 | if ("".equals (modifText)) return KeyEvent.getKeyText (keyStroke.getKeyCode ()); |
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| 231 | return modifText + "+" + KeyEvent.getKeyText(keyStroke.getKeyCode ()); |
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| 232 | } |
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| 233 | |
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| 234 | @Override |
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| 235 | public String toString() { |
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| 236 | return getKeyText(); |
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| 237 | } |
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| 238 | |
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| 239 | /////////////////////////////// |
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| 240 | // everything's static below // |
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| 241 | /////////////////////////////// |
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| 242 | |
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| 243 | // here we store our shortcuts |
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| 244 | private static Map<String, Shortcut> shortcuts = new LinkedHashMap<String, Shortcut>(); |
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| 245 | |
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| 246 | // and here our modifier groups |
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| 247 | private static Map<Integer, Integer> groups= new HashMap<Integer, Integer>(); |
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| 248 | |
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| 249 | // check if something collides with an existing shortcut |
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| 250 | private static Shortcut findShortcut(int requestedKey, int modifier) { |
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| 251 | if (modifier == getGroupModifier(NONE)) |
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| 252 | return null; |
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| 253 | for (Shortcut sc : shortcuts.values()) { |
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| 254 | if (sc.isSame(requestedKey, modifier)) |
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| 255 | return sc; |
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| 256 | } |
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| 257 | return null; |
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| 258 | } |
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| 259 | |
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| 260 | /** |
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| 261 | * FOR PREF PANE ONLY |
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| 262 | */ |
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| 263 | public static List<Shortcut> listAll() { |
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| 264 | List<Shortcut> l = new ArrayList<Shortcut>(); |
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| 265 | for(Shortcut c : shortcuts.values()) |
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| 266 | { |
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| 267 | if(!c.shortText.equals("core:none")) { |
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| 268 | l.add(c); |
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| 269 | } |
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| 270 | } |
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| 271 | return l; |
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| 272 | } |
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| 273 | |
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| 274 | public static final int NONE = 5000; |
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| 275 | public static final int MNEMONIC = 5001; |
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| 276 | public static final int RESERVED = 5002; |
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| 277 | public static final int DIRECT = 5003; |
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| 278 | public static final int ALT = 5004; |
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| 279 | public static final int SHIFT = 5005; |
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| 280 | public static final int CTRL = 5006; |
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| 281 | public static final int ALT_SHIFT = 5007; |
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| 282 | public static final int ALT_CTRL = 5008; |
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| 283 | public static final int CTRL_SHIFT = 5009; |
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| 284 | public static final int ALT_CTRL_SHIFT = 5010; |
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| 285 | |
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| 286 | /* for reassignment */ |
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| 287 | private static int[] mods = {ALT_CTRL, ALT_SHIFT, CTRL_SHIFT, ALT_CTRL_SHIFT}; |
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| 288 | private static int[] keys = {KeyEvent.VK_F1, KeyEvent.VK_F2, KeyEvent.VK_F3, KeyEvent.VK_F4, |
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| 289 | KeyEvent.VK_F5, KeyEvent.VK_F6, KeyEvent.VK_F7, KeyEvent.VK_F8, |
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| 290 | KeyEvent.VK_F9, KeyEvent.VK_F10, KeyEvent.VK_F11, KeyEvent.VK_F12}; |
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| 291 | |
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| 292 | // bootstrap |
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| 293 | private static boolean initdone = false; |
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| 294 | private static void doInit() { |
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| 295 | if (initdone) return; |
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| 296 | initdone = true; |
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| 297 | groups.put(NONE, -1); |
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| 298 | groups.put(MNEMONIC, KeyEvent.ALT_DOWN_MASK); |
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| 299 | groups.put(DIRECT, 0); |
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| 300 | groups.put(ALT, KeyEvent.ALT_DOWN_MASK); |
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| 301 | groups.put(SHIFT, KeyEvent.SHIFT_DOWN_MASK); |
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| 302 | groups.put(CTRL, KeyEvent.CTRL_DOWN_MASK); |
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| 303 | groups.put(ALT_SHIFT, KeyEvent.ALT_DOWN_MASK|KeyEvent.SHIFT_DOWN_MASK); |
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| 304 | groups.put(ALT_CTRL, KeyEvent.ALT_DOWN_MASK|KeyEvent.CTRL_DOWN_MASK); |
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| 305 | groups.put(CTRL_SHIFT, KeyEvent.CTRL_DOWN_MASK|KeyEvent.SHIFT_DOWN_MASK); |
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| 306 | groups.put(ALT_CTRL_SHIFT, KeyEvent.ALT_DOWN_MASK|KeyEvent.CTRL_DOWN_MASK|KeyEvent.SHIFT_DOWN_MASK); |
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| 307 | |
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| 308 | // (1) System reserved shortcuts |
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| 309 | Main.platform.initSystemShortcuts(); |
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| 310 | // (2) User defined shortcuts |
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| 311 | LinkedList<Shortcut> newshortcuts = new LinkedList<Shortcut>(); |
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| 312 | for(String s : Main.pref.getAllPrefixCollectionKeys("shortcut.entry.")) { |
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| 313 | newshortcuts.add(new Shortcut(s)); |
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| 314 | } |
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| 315 | |
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| 316 | for(Shortcut sc : newshortcuts) { |
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| 317 | if (sc.getAssignedUser() |
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| 318 | && findShortcut(sc.getAssignedKey(), sc.getAssignedModifier()) == null) { |
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| 319 | shortcuts.put(sc.getShortText(), sc); |
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| 320 | } |
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| 321 | } |
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| 322 | // Shortcuts at their default values |
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| 323 | for(Shortcut sc : newshortcuts) { |
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| 324 | if (!sc.getAssignedUser() && sc.getAssignedDefault() |
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| 325 | && findShortcut(sc.getAssignedKey(), sc.getAssignedModifier()) == null) { |
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| 326 | shortcuts.put(sc.getShortText(), sc); |
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| 327 | } |
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| 328 | } |
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| 329 | // Shortcuts that were automatically moved |
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| 330 | for(Shortcut sc : newshortcuts) { |
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| 331 | if (!sc.getAssignedUser() && !sc.getAssignedDefault() |
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| 332 | && findShortcut(sc.getAssignedKey(), sc.getAssignedModifier()) == null) { |
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| 333 | shortcuts.put(sc.getShortText(), sc); |
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| 334 | } |
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| 335 | } |
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| 336 | } |
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| 337 | |
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| 338 | private static int getGroupModifier(int group) { |
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| 339 | Integer m = groups.get(group); |
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| 340 | if(m == null) |
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| 341 | m = -1; |
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| 342 | return m; |
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| 343 | } |
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| 344 | |
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| 345 | private static int findModifier(int group, Integer modifier) { |
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| 346 | if(modifier == null) { |
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| 347 | modifier = getGroupModifier(group); |
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| 348 | if (modifier == null) { // garbage in, no shortcut out |
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| 349 | modifier = getGroupModifier(NONE); |
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| 350 | } |
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| 351 | } |
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| 352 | return modifier; |
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| 353 | } |
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| 354 | |
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| 355 | // shutdown handling |
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| 356 | public static boolean savePrefs() { |
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| 357 | boolean changed = false; |
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| 358 | for (Shortcut sc : shortcuts.values()) { |
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| 359 | changed = changed | sc.save(); |
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| 360 | } |
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| 361 | return changed; |
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| 362 | } |
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| 363 | |
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| 364 | /** |
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| 365 | * FOR PLATFORMHOOK USE ONLY |
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| 366 | * |
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| 367 | * This registers a system shortcut. See PlatformHook for details. |
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| 368 | */ |
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| 369 | public static Shortcut registerSystemShortcut(String shortText, String longText, int key, int modifier) { |
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| 370 | if (shortcuts.containsKey(shortText)) |
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| 371 | return shortcuts.get(shortText); |
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| 372 | Shortcut potentialShortcut = findShortcut(key, modifier); |
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| 373 | if (potentialShortcut != null) { |
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| 374 | // this always is a logic error in the hook |
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| 375 | System.err.println("CONFLICT WITH SYSTEM KEY "+shortText); |
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| 376 | return null; |
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| 377 | } |
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| 378 | potentialShortcut = new Shortcut(shortText, longText, key, RESERVED, key, modifier, true, false); |
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| 379 | shortcuts.put(shortText, potentialShortcut); |
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| 380 | return potentialShortcut; |
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| 381 | } |
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| 382 | |
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| 383 | /** |
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| 384 | * Register a shortcut. |
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| 385 | * |
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| 386 | * Here you get your shortcuts from. The parameters are: |
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| 387 | * |
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| 388 | * @param shortText an ID. re-use a {@code "system:*"} ID if possible, else use something unique. |
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| 389 | * {@code "menu:*"} is reserved for menu mnemonics, {@code "core:*"} is reserved for |
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| 390 | * actions that are part of JOSM's core. Use something like |
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| 391 | * {@code <pluginname>+":"+<actionname>}. |
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| 392 | * @param longText this will be displayed in the shortcut preferences dialog. Better |
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| 393 | * use something the user will recognize... |
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| 394 | * @param requestedKey the key you'd prefer. Use a {@link KeyEvent KeyEvent.VK_*} constant here. |
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| 395 | * @param requestedGroup the group this shortcut fits best. This will determine the |
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| 396 | * modifiers your shortcut will get assigned. Use the constants defined above. |
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| 397 | */ |
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| 398 | public static Shortcut registerShortcut(String shortText, String longText, int requestedKey, int requestedGroup) { |
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| 399 | return registerShortcut(shortText, longText, requestedKey, requestedGroup, null); |
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| 400 | } |
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| 401 | |
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| 402 | // and now the workhorse. same parameters as above, just one more |
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| 403 | private static Shortcut registerShortcut(String shortText, String longText, int requestedKey, int requestedGroup, Integer modifier) { |
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| 404 | doInit(); |
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| 405 | Integer defaultModifier = findModifier(requestedGroup, modifier); |
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| 406 | if (shortcuts.containsKey(shortText)) { // a re-register? maybe a sc already read from the preferences? |
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| 407 | Shortcut sc = shortcuts.get(shortText); |
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| 408 | sc.setLongText(longText); // or set by the platformHook, in this case the original longText doesn't match the real action |
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| 409 | sc.saveDefault(); |
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| 410 | return sc; |
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| 411 | } |
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| 412 | Shortcut conflict = findShortcut(requestedKey, defaultModifier); |
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| 413 | if (conflict != null) { |
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| 414 | for (int m : mods) { |
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| 415 | for (int k : keys) { |
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| 416 | int newmodifier = getGroupModifier(m); |
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| 417 | if ( findShortcut(k, newmodifier) == null ) { |
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| 418 | Shortcut newsc = new Shortcut(shortText, longText, requestedKey, m, k, newmodifier, false, false); |
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| 419 | System.out.println(tr("Silent shortcut conflict: ''{0}'' moved by ''{1}'' to ''{2}''.", |
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| 420 | shortText, conflict.getShortText(), newsc.getKeyText())); |
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| 421 | newsc.saveDefault(); |
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| 422 | shortcuts.put(shortText, newsc); |
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| 423 | return newsc; |
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| 424 | } |
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| 425 | } |
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| 426 | } |
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| 427 | } else { |
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| 428 | Shortcut newsc = new Shortcut(shortText, longText, requestedKey, requestedGroup, requestedKey, defaultModifier, true, false); |
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| 429 | newsc.saveDefault(); |
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| 430 | shortcuts.put(shortText, newsc); |
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| 431 | return newsc; |
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| 432 | } |
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| 433 | |
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| 434 | return null; |
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| 435 | } |
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| 436 | |
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| 437 | /** |
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| 438 | * Replies the platform specific key stroke for the 'Copy' command, i.e. |
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| 439 | * 'Ctrl-C' on windows or 'Meta-C' on a Mac. null, if the platform specific |
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| 440 | * copy command isn't known. |
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| 441 | * |
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| 442 | * @return the platform specific key stroke for the 'Copy' command |
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| 443 | */ |
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| 444 | static public KeyStroke getCopyKeyStroke() { |
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| 445 | Shortcut sc = shortcuts.get("system:copy"); |
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| 446 | if (sc == null) return null; |
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| 447 | return sc.getKeyStroke(); |
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| 448 | } |
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| 449 | |
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| 450 | /** |
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| 451 | * Replies the platform specific key stroke for the 'Paste' command, i.e. |
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| 452 | * 'Ctrl-V' on windows or 'Meta-V' on a Mac. null, if the platform specific |
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| 453 | * paste command isn't known. |
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| 454 | * |
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| 455 | * @return the platform specific key stroke for the 'Paste' command |
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| 456 | */ |
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| 457 | static public KeyStroke getPasteKeyStroke() { |
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| 458 | Shortcut sc = shortcuts.get("system:paste"); |
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| 459 | if (sc == null) return null; |
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| 460 | return sc.getKeyStroke(); |
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| 461 | } |
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| 462 | |
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| 463 | /** |
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| 464 | * Replies the platform specific key stroke for the 'Cut' command, i.e. |
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| 465 | * 'Ctrl-X' on windows or 'Meta-X' on a Mac. null, if the platform specific |
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| 466 | * 'Cut' command isn't known. |
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| 467 | * |
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| 468 | * @return the platform specific key stroke for the 'Cut' command |
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| 469 | */ |
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| 470 | static public KeyStroke getCutKeyStroke() { |
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| 471 | Shortcut sc = shortcuts.get("system:cut"); |
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| 472 | if (sc == null) return null; |
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| 473 | return sc.getKeyStroke(); |
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| 474 | } |
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| 475 | } |
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