Font.measureTextWidth

JetBrains · Oct 23, 2020 · db62ccd · db62ccd
1 parent bec6cb7
commit db62ccd
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diff --git a/src/main/cc/Font.cc b/src/main/cc/Font.cc
@@ -253,6 +253,17 @@ extern "C" JNIEXPORT jobject JNICALL Java_org_jetbrains_skija_Font__1nMeasureTex
     return skija::Rect::fromSkRect(env, bounds);
 }
 
+extern "C" JNIEXPORT jfloat JNICALL Java_org_jetbrains_skija_Font__1nMeasureTextWidth
+  (JNIEnv* env, jclass jclass, jlong ptr, jstring str, jlong paintPtr) {
+    SkFont* instance = reinterpret_cast<SkFont*>(static_cast<uintptr_t>(ptr));
+    SkPaint* paint = reinterpret_cast<SkPaint*>(static_cast<uintptr_t>(paintPtr));
+    jsize len = env->GetStringLength(str);
+    const jchar* chars = env->GetStringChars(str, nullptr);
+    float width = instance->measureText(chars, len * sizeof(jchar), SkTextEncoding::kUTF16, nullptr, paint);
+    env->ReleaseStringChars(str, chars);
+    return width;
+}
+
 extern "C" JNIEXPORT jfloatArray JNICALL Java_org_jetbrains_skija_Font__1nGetWidths
   (JNIEnv* env, jclass jclass, jlong ptr, jshortArray glyphsArr) {
     SkFont* instance = reinterpret_cast<SkFont*>(static_cast<uintptr_t>(ptr));

diff --git a/src/main/java/org/jetbrains/skija/Font.java b/src/main/java/org/jetbrains/skija/Font.java
@@ -371,6 +371,16 @@ public Rect measureText(String s, Paint p) {
         return _nMeasureText(_ptr, s, Native.getPtr(p));
     }
 
+    public float measureTextWidth(String s) {
+        Stats.onNativeCall();
+        return measureTextWidth(s, null);
+    }
+
+    public float measureTextWidth(String s, Paint p) {
+        Stats.onNativeCall();
+        return _nMeasureTextWidth(_ptr, s, Native.getPtr(p));
+    }
+
     /**
      * Retrieves the advances for each glyph
      */
@@ -504,6 +514,7 @@ public TextBlob shape(String str, float width) {
     @ApiStatus.Internal public static native short[] _nGetUTF32GlyphIds(long ptr, int[] uni);
     @ApiStatus.Internal public static native int     _nGetStringGlyphsCount(long ptr, String str);
     @ApiStatus.Internal public static native Rect    _nMeasureText(long ptr, String str, long paintPtr);
+    @ApiStatus.Internal public static native float   _nMeasureTextWidth(long ptr, String str, long paintPtr); 
     @ApiStatus.Internal public static native float[] _nGetWidths(long ptr, short[] glyphs);
     @ApiStatus.Internal public static native Rect[]  _nGetBounds(long ptr, short[] glyphs, long paintPtr);
     @ApiStatus.Internal public static native Point[] _nGetPositions(long ptr, short[] glyphs, float x, float y);