From 517825f1a9f14f92908bd7859b91b927c2eec6d9 Mon Sep 17 00:00:00 2001
From: Fabrice Di Meglio <fdimeglio@google.com>
Date: Fri, 6 Apr 2012 16:53:48 -0700
Subject: Add Paint.setTextLocale()

- will be used for better shaping CJK and other goodies

Change-Id: If64945a337edd915f5ebb88f04b6fd18e92ca587
---
 graphics/java/android/graphics/Paint.java | 41 +++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

(limited to 'graphics')

diff --git a/graphics/java/android/graphics/Paint.java b/graphics/java/android/graphics/Paint.java
index c97785e..8cb8466 100644
--- a/graphics/java/android/graphics/Paint.java
+++ b/graphics/java/android/graphics/Paint.java
@@ -21,6 +21,8 @@ import android.text.SpannableString;
 import android.text.SpannedString;
 import android.text.TextUtils;
 
+import java.util.Locale;
+
 /**
  * The Paint class holds the style and color information about how to draw
  * geometries, text and bitmaps.
@@ -44,6 +46,8 @@ public class Paint {
     private float       mCompatScaling;
     private float       mInvCompatScaling;
 
+    private Locale      mLocale;
+
     /**
      * @hide
      */
@@ -348,6 +352,7 @@ public class Paint {
         // setHinting(DisplayMetrics.DENSITY_DEVICE >= DisplayMetrics.DENSITY_TV
         //        ? HINTING_OFF : HINTING_ON);
         mCompatScaling = mInvCompatScaling = 1;
+        mLocale = Locale.getDefault();
     }
 
     /**
@@ -360,6 +365,7 @@ public class Paint {
     public Paint(Paint paint) {
         mNativePaint = native_initWithPaint(paint.mNativePaint);
         setClassVariablesFrom(paint);
+        mLocale = paint.mLocale;
     }
 
     /** Restores the paint to its default settings. */
@@ -373,6 +379,7 @@ public class Paint {
         mHasCompatScaling = false;
         mCompatScaling = mInvCompatScaling = 1;
         mBidiFlags = BIDI_DEFAULT_LTR;
+        mLocale = Locale.getDefault();
     }
     
     /**
@@ -412,6 +419,7 @@ public class Paint {
         shadowColor = paint.shadowColor;
 
         mBidiFlags = paint.mBidiFlags;
+        mLocale = paint.mLocale;
     }
 
     /** @hide */
@@ -1045,6 +1053,36 @@ public class Paint {
     }
 
     /**
+     * Get the text Locale.
+     *
+     * @return the paint's Locale used for drawing text, never null.
+     */
+    public Locale getTextLocale() {
+        return mLocale;
+    }
+
+    /**
+     * Set the text locale.
+     *
+     * This controls how the text will be drawn. Providing the ROOT Locale (default case)
+     * means that the text will be drawn with the font corresponding to its script.
+     *
+     * Using the CHINESE or CHINA Locale means that the text will be drawn with a Chinese font.
+     * Using the JAPANESE or JAPAN Locale means that the text will be drawn with a Japanese font.
+     * Using the KOREAN or KOREA Locale means that the text will be drawn with a Korean font.
+     *
+     * @param locale the paint's locale value for drawing text, must not be null.
+     */
+    public void setTextLocale(Locale locale) {
+        if (locale == null) {
+            throw new IllegalArgumentException("locale cannot be null");
+        }
+        if (locale.equals(mLocale)) return;
+        mLocale = locale;
+        native_setTextLocale(mNativePaint, locale.toString());
+    }
+
+    /**
      * Return the paint's text size.
      *
      * @return the paint's text size.
@@ -2144,6 +2182,9 @@ public class Paint {
     private static native void native_setTextAlign(int native_object,
                                                    int align);
 
+    private static native void native_setTextLocale(int native_object,
+                                                    String locale);
+
     private static native int native_getTextWidths(int native_object,
                             char[] text, int index, int count, float[] widths);
     private static native int native_getTextWidths(int native_object,
-- 
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