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7027693: /jfc/CodePointIM demo needs to be improved

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Reviewed-by: alexp
This commit is contained in:
Alexander Kouznetsov 2011-03-30 15:52:32 -07:00
parent 97d01f5e6f
commit 7fbd444883
3 changed files with 63 additions and 72 deletions
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14
jdk/src/share/demo/jfc/CodePointIM/CodePointIM.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -29,12 +29,12 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
*/
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
public class CodePointIM {
// Actually, the main method is not required for InputMethod.
@ -42,11 +42,11 @@ public class CodePointIM {
// not correct and encourage their reading README.txt.
public static void main(String[] args) {
try {
ResourceBundle resource = ResourceBundle.getBundle("resources.codepoint",
Locale.getDefault());
ResourceBundle resource = ResourceBundle.getBundle(
"resources.codepoint",
Locale.getDefault());
System.err.println(resource.getString("warning"));
}
catch (MissingResourceException e) {
} catch (MissingResourceException e) {
System.err.println(e.toString());
}

107
jdk/src/share/demo/jfc/CodePointIM/CodePointInputMethod.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2002, 2004, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -28,13 +28,8 @@
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
*/
package com.sun.inputmethods.internal.codepointim;
import java.text.AttributedCharacterIterator;
import java.util.Map;
import java.awt.AWTEvent;
import java.awt.Toolkit;
@ -50,6 +45,7 @@ import java.io.IOException;
import java.text.AttributedString;
import java.util.Locale;
/**
* The Code Point Input Method is a simple input method that allows Unicode
* characters to be entered using their code point or code unit values. See the
@ -59,18 +55,16 @@ import java.util.Locale;
*/
public class CodePointInputMethod implements InputMethod {
private static final int UNSET = 0;
private static final int ESCAPE = 1; // \u0000 - \uFFFF
private static final int SPECIAL_ESCAPE = 2; // \U000000 - \U10FFFF
private static final int SURROGATE_PAIR = 3; // \uD800\uDC00 - \uDBFF\uDFFF
private static final int UNSET = 0;
private static final int ESCAPE = 1; // \u0000 - \uFFFF
private static final int SPECIAL_ESCAPE = 2; // \U000000 - \U10FFFF
private static final int SURROGATE_PAIR = 3; // \uD800\uDC00 - \uDBFF\uDFFF
private InputMethodContext context;
private Locale locale;
private StringBuffer buffer;
private int insertionPoint;
private int format = UNSET;
public CodePointInputMethod() throws IOException {
}
@ -90,7 +84,7 @@ public class CodePointInputMethod implements InputMethod {
if (eventID == KeyEvent.KEY_PRESSED) {
// If we are not in composition mode, pass through
if (notInCompositionMode) {
if (notInCompositionMode) {
return;
}
@ -106,7 +100,7 @@ public class CodePointInputMethod implements InputMethod {
char c = e.getKeyChar();
// If we are not in composition mode, wait a back slash
if (notInCompositionMode) {
if (notInCompositionMode) {
// If the type character is not a back slash, pass through
if (c != '\\') {
return;
@ -115,30 +109,30 @@ public class CodePointInputMethod implements InputMethod {
startComposition(); // Enter to composition mode
} else {
switch (c) {
case ' ': // Exit from composition mode
finishComposition();
break;
case '\u007f': // Delete
deleteCharacter();
break;
case '\b': // BackSpace
deletePreviousCharacter();
break;
case '\u001b': // Escape
cancelComposition();
break;
case '\n': // Return
case '\t': // Tab
sendCommittedText();
break;
default:
composeUnicodeEscape(c);
break;
case ' ': // Exit from composition mode
finishComposition();
break;
case '\u007f': // Delete
deleteCharacter();
break;
case '\b': // BackSpace
deletePreviousCharacter();
break;
case '\u001b': // Escape
cancelComposition();
break;
case '\n': // Return
case '\t': // Tab
sendCommittedText();
break;
default:
composeUnicodeEscape(c);
break;
}
}
} else { // KeyEvent.KEY_RELEASED
// If we are not in composition mode, pass through
if (notInCompositionMode) {
if (notInCompositionMode) {
return;
}
}
@ -148,7 +142,7 @@ public class CodePointInputMethod implements InputMethod {
private void composeUnicodeEscape(char c) {
switch (buffer.length()) {
case 1: // \\
case 1: // \\
waitEscapeCharacter(c);
break;
case 2: // \\u or \\U
@ -221,7 +215,7 @@ public class CodePointInputMethod implements InputMethod {
private void waitDigit2(char c) {
if (Character.digit(c, 16) != -1) {
buffer.insert(insertionPoint++, c);
char codePoint = (char)getCodePoint(buffer, 2, 5);
char codePoint = (char) getCodePoint(buffer, 2, 5);
if (Character.isHighSurrogate(codePoint)) {
format = SURROGATE_PAIR;
buffer.append("\\u");
@ -261,11 +255,11 @@ public class CodePointInputMethod implements InputMethod {
private void sendComposedText() {
AttributedString as = new AttributedString(buffer.toString());
as.addAttribute(TextAttribute.INPUT_METHOD_HIGHLIGHT,
InputMethodHighlight.SELECTED_RAW_TEXT_HIGHLIGHT);
InputMethodHighlight.SELECTED_RAW_TEXT_HIGHLIGHT);
context.dispatchInputMethodEvent(
InputMethodEvent.INPUT_METHOD_TEXT_CHANGED,
as.getIterator(), 0,
TextHitInfo.leading(insertionPoint), null);
InputMethodEvent.INPUT_METHOD_TEXT_CHANGED,
as.getIterator(), 0,
TextHitInfo.leading(insertionPoint), null);
}
/**
@ -274,9 +268,9 @@ public class CodePointInputMethod implements InputMethod {
private void sendCommittedText() {
AttributedString as = new AttributedString(buffer.toString());
context.dispatchInputMethodEvent(
InputMethodEvent.INPUT_METHOD_TEXT_CHANGED,
as.getIterator(), buffer.length(),
TextHitInfo.leading(insertionPoint), null);
InputMethodEvent.INPUT_METHOD_TEXT_CHANGED,
as.getIterator(), buffer.length(),
TextHitInfo.leading(insertionPoint), null);
buffer.setLength(0);
insertionPoint = 0;
@ -298,9 +292,9 @@ public class CodePointInputMethod implements InputMethod {
}
context.dispatchInputMethodEvent(
InputMethodEvent.CARET_POSITION_CHANGED,
null, 0,
TextHitInfo.leading(insertionPoint), null);
InputMethodEvent.CARET_POSITION_CHANGED,
null, 0,
TextHitInfo.leading(insertionPoint), null);
}
/**
@ -314,9 +308,9 @@ public class CodePointInputMethod implements InputMethod {
}
context.dispatchInputMethodEvent(
InputMethodEvent.CARET_POSITION_CHANGED,
null, 0,
TextHitInfo.leading(insertionPoint), null);
InputMethodEvent.CARET_POSITION_CHANGED,
null, 0,
TextHitInfo.leading(insertionPoint), null);
}
/**
@ -383,7 +377,7 @@ public class CodePointInputMethod implements InputMethod {
private void finishComposition() {
int len = buffer.length();
if (len == 6 && format != SPECIAL_ESCAPE) {
char codePoint = (char)getCodePoint(buffer, 2, 5);
char codePoint = (char) getCodePoint(buffer, 2, 5);
if (Character.isValidCodePoint(codePoint) && codePoint != 0xFFFF) {
buffer.setLength(0);
buffer.append(codePoint);
@ -400,11 +394,11 @@ public class CodePointInputMethod implements InputMethod {
}
} else if (len == 12 && format == SURROGATE_PAIR) {
char[] codePoint = {
(char)getCodePoint(buffer, 2, 5),
(char)getCodePoint(buffer, 8, 11)
(char) getCodePoint(buffer, 2, 5),
(char) getCodePoint(buffer, 8, 11)
};
if (Character.isHighSurrogate(codePoint[0]) &&
Character.isLowSurrogate(codePoint[1])) {
if (Character.isHighSurrogate(codePoint[0]) && Character.
isLowSurrogate(codePoint[1])) {
buffer.setLength(0);
buffer.append(codePoint);
sendCommittedText();
@ -418,7 +412,7 @@ public class CodePointInputMethod implements InputMethod {
private int getCodePoint(StringBuffer sb, int from, int to) {
int value = 0;
for (int i = from; i <= to; i++) {
value = (value<<4) + Character.digit(sb.charAt(i), 16);
value = (value << 4) + Character.digit(sb.charAt(i), 16);
}
return value;
}
@ -427,7 +421,6 @@ public class CodePointInputMethod implements InputMethod {
Toolkit.getDefaultToolkit().beep();
}
public void activate() {
if (buffer == null) {
buffer = new StringBuffer(12);

14
jdk/src/share/demo/jfc/CodePointIM/CodePointInputMethodDescriptor.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2002, 2004, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -28,17 +28,15 @@
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
*/
package com.sun.inputmethods.internal.codepointim;
import java.awt.Image;
import java.awt.im.spi.InputMethodDescriptor;
import java.awt.im.spi.InputMethod;
import java.util.Locale;
/**
* The CodePointInputMethod is a simple input method that allows Unicode
* characters to be entered via their hexadecimal code point values.
@ -68,12 +66,12 @@ public class CodePointInputMethodDescriptor implements InputMethodDescriptor {
*/
public Locale[] getAvailableLocales() {
Locale[] locales = {
new Locale("","",""),
};
new Locale("", "", ""), };
return locales;
}
public synchronized String getInputMethodDisplayName(Locale inputLocale, Locale displayLanguage) {
public synchronized String getInputMethodDisplayName(Locale inputLocale,
Locale displayLanguage) {
return "CodePoint Input Method";
}