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8374340: FontRenderContext instance variables should be final

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Reviewed-by: aivanov, aturbanov, prr, serb
This commit is contained in:
Daniel Gredler 2026-01-06 16:52:21 +00:00
parent 136ac0d10b
commit 3f65215960
1 changed files with 12 additions and 7 deletions
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19
src/java.desktop/share/classes/java/awt/font/FontRenderContext.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1998, 2026, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -62,19 +62,18 @@ import java.awt.geom.AffineTransform;
* @see java.awt.Graphics2D#getFontRenderContext()
* @see java.awt.font.LineMetrics
*/
public class FontRenderContext {
private transient AffineTransform tx;
private transient Object aaHintValue;
private transient Object fmHintValue;
private transient boolean defaulting;
private final transient AffineTransform tx;
private final transient Object aaHintValue;
private final transient Object fmHintValue;
private final transient boolean defaulting;
/**
* Constructs a new {@code FontRenderContext}
* object.
*
*/
protected FontRenderContext() {
tx = null;
aaHintValue = VALUE_TEXT_ANTIALIAS_DEFAULT;
fmHintValue = VALUE_FRACTIONALMETRICS_DEFAULT;
defaulting = true;
@ -105,6 +104,8 @@ public class FontRenderContext {
boolean usesFractionalMetrics) {
if (tx != null && !tx.isIdentity()) {
this.tx = new AffineTransform(tx);
} else {
this.tx = null;
}
if (isAntiAliased) {
aaHintValue = VALUE_TEXT_ANTIALIAS_ON;
@ -116,6 +117,7 @@ public class FontRenderContext {
} else {
fmHintValue = VALUE_FRACTIONALMETRICS_OFF;
}
defaulting = false;
}
/**
@ -145,6 +147,8 @@ public class FontRenderContext {
public FontRenderContext(AffineTransform tx, Object aaHint, Object fmHint){
if (tx != null && !tx.isIdentity()) {
this.tx = new AffineTransform(tx);
} else {
this.tx = null;
}
try {
if (KEY_TEXT_ANTIALIASING.isCompatibleValue(aaHint)) {
@ -164,6 +168,7 @@ public class FontRenderContext {
} catch (Exception e) {
throw new IllegalArgumentException("FM hint:" +fmHint);
}
defaulting = false;
}
/**