[libmnemonicsetter-java] 01/02: Imported Upstream version 0.3

Felix Natter fnatter-guest at moszumanska.debian.org
Tue Apr 5 18:29:08 UTC 2016


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fnatter-guest pushed a commit to branch master
in repository libmnemonicsetter-java.

commit cc0870d7451665aebe239bdf071474f7398925a6
Author: Felix Natter <fnatter at gmx.net>
Date:   Tue Apr 5 20:28:31 2016 +0200

    Imported Upstream version 0.3
---
 .gitignore                                         |   6 +
 LICENSE                                            | 201 +++++++++++++++++++++
 README.md                                          |   1 +
 build.gradle                                       |  64 +++++++
 .../mnemonicsetter/ActionNameMnemonicHolder.java   |  65 +++++++
 .../mnemonicsetter/ButtonNameMnemonicHolder.java   |  69 +++++++
 .../mnemonicsetter/INameMnemonicHolder.java        |  32 ++++
 .../mnemonicsetter/MenuItemMnemonicHolder.java     |  35 ++++
 .../mnemonicsetter/MenuMnemonicSetter.java         |  54 ++++++
 .../dpolivaev/mnemonicsetter/MnemonicSetter.java   | 162 +++++++++++++++++
 .../mnemonicsetter/MnemonicSetterShould.java       | 177 ++++++++++++++++++
 11 files changed, 866 insertions(+)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..37bd44a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+/.gradle
+/bin
+/.classpath
+/.project
+/.settings
+/build
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..8dada3e
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
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+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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diff --git a/README.md b/README.md
new file mode 100644
index 0000000..7ba985f
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+# mnemonicsetter
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..aee6c73
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,64 @@
+plugins {
+    id "com.jfrog.bintray" version "1.6"
+}
+repositories {
+    jcenter()
+}
+
+apply plugin: 'java'
+apply plugin: 'eclipse'
+apply plugin: 'maven-publish'
+
+targetCompatibility='1.7'
+sourceCompatibility='1.7'
+
+group 'org.dpolivaev.mnemonicsetter'
+version='0.3'
+
+
+bintray {
+    user = System.getenv('BINTRAY_USER')
+    key = System.getenv('BINTRAY_KEY')
+	publications = ['mnemonicsetter'] 
+	pkg {
+        repo = 'freeplane'
+        name = 'mnemonicsetter'
+        userOrg = 'freeplane'
+        licenses = ['Apache-2.0']
+        vcsUrl = 'https://github.com/dpolivaev/mnemonicsetter.git'
+		version {
+                name = project.version
+		}
+    }
+}
+
+task sourceJar(type: Jar, dependsOn: classes) {
+    classifier = 'sources'
+    from sourceSets.main.allSource
+}
+
+task javadocJar(type: Jar, dependsOn: javadoc) {
+    classifier = 'javadoc'
+    from javadoc.destinationDir
+}
+
+publishing {
+    publications {
+        mnemonicsetter(MavenPublication) {
+            from components.java
+            artifactId 'mnemonicsetter'
+			artifact sourceJar {
+                classifier "sources"
+            }
+			artifact javadocJar {
+                classifier "javadoc"
+            }
+        }
+    }
+}
+
+dependencies {
+	testCompile 'junit:junit:4.12',
+					'org.hamcrest:hamcrest-all:1.3',
+					'org.mockito:mockito-all:1.10.19'  
+}
diff --git a/src/main/java/org/dpolivaev/mnemonicsetter/ActionNameMnemonicHolder.java b/src/main/java/org/dpolivaev/mnemonicsetter/ActionNameMnemonicHolder.java
new file mode 100644
index 0000000..8afea99
--- /dev/null
+++ b/src/main/java/org/dpolivaev/mnemonicsetter/ActionNameMnemonicHolder.java
@@ -0,0 +1,65 @@
+/*
+ *  Copyright (C) 2016 Dimitry Polivaev
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ */
+package org.dpolivaev.mnemonicsetter;
+
+import java.awt.event.KeyEvent;
+
+import javax.swing.Action;
+
+public class ActionNameMnemonicHolder implements INameMnemonicHolder {
+	final private Action action;
+
+	public ActionNameMnemonicHolder(final Action action) {
+		super();
+		this.action = action;
+	}
+
+	public String getText() {
+		return (String) action.getValue(Action.NAME);
+	}
+
+	public void setDisplayedMnemonicIndex(final int mnemoSignIndex) {
+		action.putValue("SwingDisplayedMnemonicIndexKey", mnemoSignIndex);
+
+	}
+
+	public void setMnemonic(final char charAfterMnemoSign) {
+		final int keyCode = KeyEvent.getExtendedKeyCodeForChar((int) charAfterMnemoSign);
+		setMnemonic(keyCode);
+	}
+
+	public void setMnemonic(final int keyCode) {
+		action.putValue(Action.MNEMONIC_KEY,  keyCode);
+	}
+
+	public void setText(final String text) {
+		action.putValue(Action.NAME, text);
+	}
+
+	@Override
+	public int getMnemonic() {
+		final Object mnemonic = action.getValue(Action.MNEMONIC_KEY);
+		if(mnemonic instanceof Integer)
+			return ((Integer)mnemonic).intValue();
+		else
+			return 0;
+	}
+
+	@Override
+	public boolean hasAccelerator() {
+		return action.getValue(Action.ACCELERATOR_KEY) != null;
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/org/dpolivaev/mnemonicsetter/ButtonNameMnemonicHolder.java b/src/main/java/org/dpolivaev/mnemonicsetter/ButtonNameMnemonicHolder.java
new file mode 100644
index 0000000..41395f6
--- /dev/null
+++ b/src/main/java/org/dpolivaev/mnemonicsetter/ButtonNameMnemonicHolder.java
@@ -0,0 +1,69 @@
+/*
+ *  Copyright (C) 2016 Dimitry Polivaev
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ */
+package org.dpolivaev.mnemonicsetter;
+
+import java.awt.event.KeyEvent;
+
+import javax.swing.AbstractButton;
+
+public class ButtonNameMnemonicHolder implements INameMnemonicHolder {
+	final private AbstractButton btn;
+
+	public ButtonNameMnemonicHolder(final AbstractButton btn) {
+		super();
+		this.btn = btn;
+	}
+
+	public String getText() {
+		return btn.getText();
+	}
+
+	public void setDisplayedMnemonicIndex(final int mnemoSignIndex) {
+		btn.setDisplayedMnemonicIndex(mnemoSignIndex);
+	}
+
+	public void setMnemonic(final char charAfterMnemoSign) {
+		final int keyCode = KeyEvent.getExtendedKeyCodeForChar(charAfterMnemoSign);
+		setMnemonic(keyCode);
+	}
+
+	public void setMnemonic(final int keyCode) {
+		btn.setMnemonic(keyCode);
+	}
+
+	public void setText(final String text) {
+		btn.setText(text);
+	}
+
+	@Override
+	public int getMnemonic() {
+		return btn.getMnemonic();
+	}
+
+	@Override
+	public String toString() {
+		final int mnemonic = getMnemonic();
+		final String text = getText();
+		return "ButtonNameMnemonicHolder [getText()=" + text + (mnemonic != 0 ? ", getMnemonic()=" + KeyEvent.getKeyText(mnemonic) + "]" : "");
+	}
+
+	@Override
+	public boolean hasAccelerator() {
+		return false;
+	}
+	
+	
+}
\ No newline at end of file
diff --git a/src/main/java/org/dpolivaev/mnemonicsetter/INameMnemonicHolder.java b/src/main/java/org/dpolivaev/mnemonicsetter/INameMnemonicHolder.java
new file mode 100644
index 0000000..8e263a7
--- /dev/null
+++ b/src/main/java/org/dpolivaev/mnemonicsetter/INameMnemonicHolder.java
@@ -0,0 +1,32 @@
+/*
+ *  Copyright (C) 2016 Dimitry Polivaev
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ */
+package org.dpolivaev.mnemonicsetter;
+
+public interface INameMnemonicHolder {
+	String getText();
+
+	void setDisplayedMnemonicIndex(int mnemoSignIndex);
+
+	void setMnemonic(char charAfterMnemoSign);
+
+	void setText(String replaceAll);
+	
+	int getMnemonic();
+
+	void setMnemonic(int key);
+	
+	boolean hasAccelerator();
+}
\ No newline at end of file
diff --git a/src/main/java/org/dpolivaev/mnemonicsetter/MenuItemMnemonicHolder.java b/src/main/java/org/dpolivaev/mnemonicsetter/MenuItemMnemonicHolder.java
new file mode 100644
index 0000000..c3ff029
--- /dev/null
+++ b/src/main/java/org/dpolivaev/mnemonicsetter/MenuItemMnemonicHolder.java
@@ -0,0 +1,35 @@
+/*
+ *  Copyright (C) 2016 Dimitry Polivaev
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ */
+package org.dpolivaev.mnemonicsetter;
+
+import javax.swing.JMenuItem;
+
+public class MenuItemMnemonicHolder extends ButtonNameMnemonicHolder {
+
+	final private JMenuItem menuItem;
+
+
+	public MenuItemMnemonicHolder(JMenuItem menuItem) {
+		super(menuItem);
+		this.menuItem = menuItem;
+	}
+
+	@Override
+	public boolean hasAccelerator() {
+		return menuItem.getAccelerator() != null;
+	}
+
+}
\ No newline at end of file
diff --git a/src/main/java/org/dpolivaev/mnemonicsetter/MenuMnemonicSetter.java b/src/main/java/org/dpolivaev/mnemonicsetter/MenuMnemonicSetter.java
new file mode 100644
index 0000000..a53a997
--- /dev/null
+++ b/src/main/java/org/dpolivaev/mnemonicsetter/MenuMnemonicSetter.java
@@ -0,0 +1,54 @@
+package org.dpolivaev.mnemonicsetter;
+
+import java.awt.Component;
+import java.awt.Container;
+import java.util.ArrayList;
+
+import javax.swing.AbstractButton;
+import javax.swing.JMenuItem;
+import javax.swing.event.PopupMenuEvent;
+import javax.swing.event.PopupMenuListener;
+
+import org.dpolivaev.mnemonicsetter.ButtonNameMnemonicHolder;
+import org.dpolivaev.mnemonicsetter.INameMnemonicHolder;
+import org.dpolivaev.mnemonicsetter.MenuItemMnemonicHolder;
+import org.dpolivaev.mnemonicsetter.MnemonicSetter;
+
+public class MenuMnemonicSetter implements PopupMenuListener{
+	final static private boolean IS_MAC_OS = System.getProperty("os.name").startsWith("Mac OS");
+	final static public MenuMnemonicSetter INSTANCE = new MenuMnemonicSetter();
+	
+
+	@Override
+	public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
+		final Container popupMenu = (Container) e.getSource();
+		setComponentMnemonics(popupMenu);
+	}
+
+	public void setComponentMnemonics(final Container menu) {
+		if(IS_MAC_OS)
+			return; // Mac OS generally does not support mnemonics
+		final Component[] components = menu.getComponents();
+		final ArrayList<INameMnemonicHolder> mnemonicHolders = new ArrayList<INameMnemonicHolder>(components.length);
+		for(Component component :components)
+			if(component instanceof JMenuItem) {
+				final JMenuItem item = (JMenuItem) component;
+				mnemonicHolders.add(new MenuItemMnemonicHolder(item));
+			}
+			else if(component instanceof AbstractButton) {
+				final AbstractButton button = (AbstractButton) component;
+				mnemonicHolders.add(new ButtonNameMnemonicHolder(button));
+			}
+		final MnemonicSetter mnemonicSetter = MnemonicSetter.of(mnemonicHolders);
+		mnemonicSetter.setMnemonics();
+	}
+
+	@Override
+	public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
+	}
+
+	@Override
+	public void popupMenuCanceled(PopupMenuEvent e) {
+	}
+
+}
diff --git a/src/main/java/org/dpolivaev/mnemonicsetter/MnemonicSetter.java b/src/main/java/org/dpolivaev/mnemonicsetter/MnemonicSetter.java
new file mode 100644
index 0000000..4b496f7
--- /dev/null
+++ b/src/main/java/org/dpolivaev/mnemonicsetter/MnemonicSetter.java
@@ -0,0 +1,162 @@
+/*
+ *  Copyright (C) 2016 Dimitry Polivaev
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ */
+package org.dpolivaev.mnemonicsetter;
+
+import java.awt.event.KeyEvent;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.regex.Pattern;
+
+public class MnemonicSetter {
+	private final INameMnemonicHolder[] mnemonicHolders;
+
+	private MnemonicSetter(INameMnemonicHolder[] mnemonicHolders) {
+		this.mnemonicHolders = mnemonicHolders;
+	}
+
+	public void setMnemonics() {
+		final Map<Integer, INameMnemonicHolder> usedMnemonics = extractUsedMnemonics(mnemonicHolders);
+		if(usedMnemonics.size() < mnemonicHolders.length) {
+			final Map<Integer, INameMnemonicHolder> mnemonicSet = findMnemonics(usedMnemonics, 0, 0);
+			setMnemonics(mnemonicSet);
+		}
+	}
+
+	private void setMnemonics(final Map<Integer, INameMnemonicHolder> setMnemonics) {
+		for(Map.Entry<Integer, INameMnemonicHolder> holderMnemonic : setMnemonics.entrySet())
+			holderMnemonic.getValue().setMnemonic(holderMnemonic.getKey());
+	}
+
+	private Map<Integer, INameMnemonicHolder> findMnemonics(final Map<Integer, INameMnemonicHolder> usedMnemonics, int holderIndex, int characterIndex) {
+		if(holderIndex >= mnemonicHolders.length)
+			return usedMnemonics;
+		final INameMnemonicHolder holder = mnemonicHolders[holderIndex];
+		final boolean holderHasNoMnemonics = ! usedMnemonics.containsKey(holder.getMnemonic());
+		if(holderHasNoMnemonics) {
+			final String text = holder.getText();
+			if(text.length() > characterIndex) {
+				return findUnsetMnemonics(usedMnemonics, holderIndex, characterIndex);
+			}
+			return findMnemonics(usedMnemonics, holderIndex + 1, 0);
+		}
+		return findMnemonics(usedMnemonics, holderIndex + 1, 0);
+	}
+
+	private Map<Integer, INameMnemonicHolder> findUnsetMnemonics(final Map<Integer, INameMnemonicHolder> usedMnemonics, int holderIndex, int characterIndex) {
+		final INameMnemonicHolder holder = mnemonicHolders[holderIndex];
+		final String text = holder.getText();
+		final char character = text.charAt(characterIndex);
+		final int keyCode = KeyEvent.getExtendedKeyCodeForChar(character);
+		if(! usedMnemonics.containsKey(keyCode) && Character.isAlphabetic(character)
+				&& text.toLowerCase().indexOf(Character.toLowerCase(character)) == characterIndex) {
+			final Map<Integer, INameMnemonicHolder> mnemonicsWithNewCharacter = new MnemonicMap(usedMnemonics);
+			mnemonicsWithNewCharacter.put(keyCode, holder);
+			final Map<Integer, INameMnemonicHolder> allMnemonics = findMnemonics(mnemonicsWithNewCharacter, holderIndex + 1, 0);
+			return allMnemonics;
+		} else {
+			final Map<Integer, INameMnemonicHolder> allMnemonics = findMnemonics(usedMnemonics, holderIndex, characterIndex + 1);
+			return allMnemonics;
+		}
+	}
+	private Map<Integer, INameMnemonicHolder> extractUsedMnemonics(INameMnemonicHolder... mnemonicHolders) {
+		final Map<Integer, INameMnemonicHolder> usedMnemonics = new MnemonicMap();
+		for(INameMnemonicHolder holder : mnemonicHolders){
+			final Integer mnemonic = holder.getMnemonic();
+			if(mnemonic != 0) {
+				if(! usedMnemonics.containsKey(mnemonic))
+					usedMnemonics.put(mnemonic, holder);
+				else {
+					holder.setMnemonic(0);
+					holder.setDisplayedMnemonicIndex(-1);
+				}
+			}
+		}
+		
+		Arrays.sort(mnemonicHolders, new Comparator<INameMnemonicHolder>() {
+			@Override
+			public int compare(INameMnemonicHolder o1, INameMnemonicHolder o2) {
+				boolean o1HasMnemonics = o1.getMnemonic() > 0;
+				boolean o2HasMnemonics = o2.getMnemonic() > 0;
+				if(o1HasMnemonics)
+					if(o2HasMnemonics)
+						return 0;
+					else
+						return -1;
+				else
+					if(o2HasMnemonics)
+						return 1;
+					else {
+						boolean o1HasAccelerator = o1. hasAccelerator();
+						boolean o2HasAccelerator = o2. hasAccelerator();
+						if(o1HasAccelerator && ! o2HasAccelerator)
+								return 1;
+						else if(! o1HasAccelerator && o2HasAccelerator)
+								return -1;
+						else
+							return o1.getText().length() - o2.getText().length();
+					}
+			}
+		});
+		
+		return usedMnemonics;
+	}
+
+	final static private Pattern CAN_HAVE_MNEMONICS = Pattern.compile("\\p{L}");
+	
+	public static MnemonicSetter of(INameMnemonicHolder... mnemonicHolders) {
+		return of(Arrays.asList(mnemonicHolders));
+	}
+	
+	public static MnemonicSetter of(List<INameMnemonicHolder> mnemonicHolders) {
+		final ArrayList<INameMnemonicHolder> validHolders = new ArrayList<INameMnemonicHolder>(mnemonicHolders.size());
+		for(INameMnemonicHolder holder :mnemonicHolders)
+			if(CAN_HAVE_MNEMONICS.matcher(holder.getText()).find())
+				validHolders.add(holder);
+		final INameMnemonicHolder[] array = validHolders.toArray(new INameMnemonicHolder[validHolders.size()]);
+		return new MnemonicSetter(array);
+	}
+}
+
+ at SuppressWarnings("serial")
+class MnemonicMap extends LinkedHashMap<Integer, INameMnemonicHolder> {
+
+	public MnemonicMap() {
+		super();
+	}
+
+	public MnemonicMap(Map<? extends Integer, ? extends INameMnemonicHolder> m) {
+		super(m);
+	}
+
+	@Override
+	public String toString() {
+		final StringBuilder stringBuilder = new StringBuilder("MnemonicMap"
+				 + "(" + size() + ") {");
+		for(Map.Entry<Integer, INameMnemonicHolder> entry : entrySet()){
+			stringBuilder
+			.append(entry.getValue().getText())
+			.append(" -> ")
+			.append(KeyEvent.getKeyText(entry.getKey()))
+			.append("\n");
+		}
+		return stringBuilder.append("}").toString();
+	}
+}
+
diff --git a/src/test/java/org/dpolivaev/mnemonicsetter/MnemonicSetterShould.java b/src/test/java/org/dpolivaev/mnemonicsetter/MnemonicSetterShould.java
new file mode 100644
index 0000000..977d5a0
--- /dev/null
+++ b/src/test/java/org/dpolivaev/mnemonicsetter/MnemonicSetterShould.java
@@ -0,0 +1,177 @@
+/*
+ *  Copyright (C) 2016 Dimitry Polivaev
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ */
+package org.dpolivaev.mnemonicsetter;
+
+import static org.junit.Assert.assertThat;
+
+import java.awt.event.KeyEvent;
+
+import org.hamcrest.CoreMatchers;
+import org.junit.Test;
+
+public class MnemonicSetterShould {
+	static class MnemonicHolder implements INameMnemonicHolder{
+
+		private String text;
+		private int keyCode;
+
+		public MnemonicHolder(String text, char character) {
+			super();
+			setText(text);
+			setMnemonic(character);
+		}
+
+		public MnemonicHolder(String text) {
+			setText(text);
+		}
+
+		@Override
+		public String getText() {
+			return text;
+		}
+
+		@Override
+		public void setDisplayedMnemonicIndex(int mnemoSignIndex) {
+		}
+
+		@Override
+		public void setMnemonic(char character) {
+			final int keyCode = KeyEvent.getExtendedKeyCodeForChar(character);
+			setMnemonic(keyCode);
+		}
+
+		@Override
+		public void setMnemonic(final int keyCode) {
+			this.keyCode = keyCode;
+		}
+
+		@Override
+		public void setText(String text) {
+			this.text = text;
+		}
+
+		@Override
+		public int getMnemonic() {
+			return keyCode;
+		}
+
+		@Override
+		public boolean hasAccelerator() {
+			return false;
+		}
+
+	}
+
+	private void assertMnemonic(final MnemonicHolder mnemonicHolder, char character) {
+		final int keyCode = character != 0 ? KeyEvent.getExtendedKeyCodeForChar(character) : 0;
+		final int mnemonic = mnemonicHolder.getMnemonic();
+		if(keyCode == 0)
+			assertThat(mnemonic, CoreMatchers.equalTo(keyCode));
+		else {
+			final String mnemonicCharacter = KeyEvent.getKeyText(mnemonic);
+			final String expectedCharacter = KeyEvent.getKeyText(keyCode);
+			assertThat(mnemonicCharacter, CoreMatchers.equalTo(expectedCharacter));
+		}
+	}
+
+
+	@Test
+	public void assignsFirstLetter() throws Exception {
+		final MnemonicHolder mnemonicHolderA = new MnemonicHolder("A");
+		MnemonicSetter.of(mnemonicHolderA).setMnemonics();
+		assertMnemonic(mnemonicHolderA, 'A');
+	}
+
+
+	@Test
+	public void skipsSpaces() throws Exception {
+		final MnemonicHolder mnemonicHolderA = new MnemonicHolder(" A");
+		MnemonicSetter.of(mnemonicHolderA).setMnemonics();
+		assertMnemonic(mnemonicHolderA, 'A');
+	}
+	
+	@Test
+	public void assignsSecondLetter_IfFirstLetterIsAlreadyAssigned() throws Exception {
+		final MnemonicHolder mnemonicHolderAB = new MnemonicHolder("AB");
+		final MnemonicHolder mnemonicHolderA = new MnemonicHolder("A", 'A');
+		MnemonicSetter.of(mnemonicHolderAB, mnemonicHolderA).setMnemonics();
+		assertMnemonic(mnemonicHolderA, 'A');
+		assertMnemonic(mnemonicHolderAB, 'B');
+	}
+
+
+	@Test
+	public void assignsSecondLetter_IfFirstLetterLowerCaseIsAlreadyAssigned() throws Exception {
+		final MnemonicHolder mnemonicHolderAB = new MnemonicHolder("ab");
+		final MnemonicHolder mnemonicHolderA = new MnemonicHolder("A", 'A');
+		MnemonicSetter.of(mnemonicHolderAB, mnemonicHolderA).setMnemonics();
+		assertMnemonic(mnemonicHolderA, 'A');
+		assertMnemonic(mnemonicHolderAB, 'B');
+	}
+	
+	@Test
+	public void assignsFirstLetter_ifItIsNotAssignedYet() throws Exception {
+		final MnemonicHolder mnemonicHolderAB = new MnemonicHolder("AB");
+		final MnemonicHolder mnemonicHolderA = new MnemonicHolder("C");
+		MnemonicSetter.of(mnemonicHolderAB, mnemonicHolderA).setMnemonics();
+		assertMnemonic(mnemonicHolderAB, 'A');
+	}
+	
+	@Test
+	public void assignsFirstLetter_toSecondHolder() throws Exception {
+		final MnemonicHolder mnemonicHolderAB = new MnemonicHolder("AB");
+		final MnemonicHolder mnemonicHolderC = new MnemonicHolder("C");
+		MnemonicSetter.of(mnemonicHolderAB, mnemonicHolderC).setMnemonics();
+		assertMnemonic(mnemonicHolderAB, 'A');
+		assertMnemonic(mnemonicHolderC, 'C');
+	}
+	
+	@Test
+	public void assignsSecondLetter_toSecondHolder() throws Exception {
+		final MnemonicHolder mnemonicHolderAB = new MnemonicHolder("AB");
+		final MnemonicHolder mnemonicHolderAC = new MnemonicHolder("AC");
+		MnemonicSetter.of(mnemonicHolderAB, mnemonicHolderAC).setMnemonics();
+		assertMnemonic(mnemonicHolderAB, 'A');
+		assertMnemonic(mnemonicHolderAC, 'C');
+	}
+	
+	@Test
+	public void assignsNoLetter_ifAllLettersAreAlreadyAssigned() throws Exception {
+		final MnemonicHolder mnemonicHolderA1 = new MnemonicHolder("a");
+		final MnemonicHolder mnemonicHolderA2 = new MnemonicHolder("a", 'A');
+		MnemonicSetter.of(mnemonicHolderA1, mnemonicHolderA2).setMnemonics();
+		assertMnemonic(mnemonicHolderA1, '\0');
+		assertMnemonic(mnemonicHolderA2, 'A');
+	}
+	
+	@Test
+	public void assignsSecondLetter_toFirstHolder() throws Exception {
+		final MnemonicHolder mnemonicHolderAB = new MnemonicHolder("AB");
+		final MnemonicHolder mnemonicHolderA = new MnemonicHolder("A");
+		MnemonicSetter.of(mnemonicHolderAB, mnemonicHolderA).setMnemonics();
+		assertMnemonic(mnemonicHolderAB, 'B');
+		assertMnemonic(mnemonicHolderA, 'A');
+	}
+
+	@Test
+	public void assignsNoLetter_toSecondHolder() throws Exception {
+		final MnemonicHolder mnemonicHolderA1 = new MnemonicHolder("a");
+		final MnemonicHolder mnemonicHolderA2 = new MnemonicHolder("a");
+		MnemonicSetter.of(mnemonicHolderA1, mnemonicHolderA2).setMnemonics();
+		assertMnemonic(mnemonicHolderA1, 'A');
+		assertMnemonic(mnemonicHolderA2, '\0');
+	}
+}

-- 
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