Java 类android.text.style.MaskFilterSpan 实例源码

/**
 * @see BlurMaskFilter#BlurMaskFilter(float, BlurMaskFilter.Blur)
 */
public static Span blur(final float radius, @NonNull final BlurMaskFilter.Blur style) {
    return new Span(new SpanBuilder() {
        @Override
        public Object build() {
            return new MaskFilterSpan(new BlurMaskFilter(radius, style));
        }
    });
}

/**
 * @see EmbossMaskFilter#EmbossMaskFilter(float[], float, float, float)
 */
public static Span emboss(@NonNull final float[] direction, final float ambient, final float specular, final float blurRadius) {
    return new Span(new SpanBuilder() {
        @Override
        public Object build() {
            return new MaskFilterSpan(new EmbossMaskFilter(direction, ambient, specular, blurRadius));
        }
    });
}

public TextDecorator blur(final float radius, final BlurMaskFilter.Blur style, final String... texts) {
  int index;

  for (String text : texts) {
    if (content.contains(text)) {
      index = content.indexOf(text);
      decoratedContent.setSpan(new MaskFilterSpan(new BlurMaskFilter(radius, style)), index, index + text.length(), flags);
    }
  }

  return this;
}

public TextDecorator emboss(final float[] direction, final float ambient, final float specular, final float blurRadius, final int start, final int end) {
  checkIndexOutOfBoundsException(start, end);
  decoratedContent.setSpan(new MaskFilterSpan(new EmbossMaskFilter(direction, ambient, specular, blurRadius)), start, end,
      flags);

  return this;
}

public TextDecorator emboss(final float[] direction, final float ambient, final float specular, final float blurRadius, final String... texts) {
  int index;

  for (String text : texts) {
    if (content.contains(text)) {
      index = content.indexOf(text);
      decoratedContent.setSpan(new MaskFilterSpan(new EmbossMaskFilter(direction, ambient, specular, blurRadius)), index, index + text.length(), flags);
    }
  }

  return this;
}

public static Node mask(MaskFilter filter, Object... nodes) {
    return new SpanNode(new MaskFilterSpan(filter), nodes);
}

public TextDecorator blur(final float radius, final BlurMaskFilter.Blur style, final int start, final int end) {
  checkIndexOutOfBoundsException(start, end);
  decoratedContent.setSpan(new MaskFilterSpan(new BlurMaskFilter(radius, style)), start, end, flags);

  return this;
}

/**
 * @param density
 * @param style   BlurMaskFilter.Blur.NORMAL
 * @return
 */
public SpanOptions addMaskFilterSpan(float density, BlurMaskFilter.Blur style) {
    MaskFilterSpan span = new MaskFilterSpan(new BlurMaskFilter(density, style));
    listSpan.add(span);
    return this;
}

/**
 * 模糊效果
 *
 * @param text
 * @param density
 * @param style   BlurMaskFilter.Blur.NORMAL
 * @return
 */
public AndroidSpan drawMaskFilterSpan(String text, float density, BlurMaskFilter.Blur style) {
    MaskFilterSpan span = new MaskFilterSpan(new BlurMaskFilter(density, style));
    drawSpan(text, span);
    return this;
}