android.graphics.Paint.FontMetricsInt Java Examples

@Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
  final int size = MeasureSpec.getSize(widthMeasureSpec);
  final int mode = MeasureSpec.getMode(widthMeasureSpec);
  if (!useSystemEmoji()                                            &&
      getEllipsize() == TruncateAt.END                             &&
      !TextUtils.isEmpty(source)                                   &&
      (mode == MeasureSpec.AT_MOST || mode == MeasureSpec.EXACTLY) &&
      getPaint().breakText(source, 0, source.length()-1, true, size, null) != source.length())
  {
    needsEllipsizing = true;
    FontMetricsInt font = getPaint().getFontMetricsInt();
    super.onMeasure(MeasureSpec.makeMeasureSpec(size, MeasureSpec.EXACTLY),
                    MeasureSpec.makeMeasureSpec(Math.abs(font.top - font.bottom), MeasureSpec.EXACTLY));
  } else {
    needsEllipsizing = false;
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
  }
}
 

private static int computeY(final FontMetricsInt fontMetricsInt,
		final int constrainHeight, final int totalHeight,
		final int verticalAlignment) {
	int y = -fontMetricsInt.top;

	if (constrainHeight > totalHeight) {
		switch (verticalAlignment) {
		case VERTICALALIGN_TOP:
			y = -fontMetricsInt.top;
			break;
		case VERTICALALIGN_CENTER:
			y = -fontMetricsInt.top + (constrainHeight - totalHeight)
					/ 2;
			break;
		case VERTICALALIGN_BOTTOM:
			y = -fontMetricsInt.top + (constrainHeight - totalHeight);
			break;
		default:
			break;
		}
	}

	return y;
}
 

private static TextProperty computeTextProperty(final String string,
		final int width, final int height, final Paint paint) {
	final FontMetricsInt fm = paint.getFontMetricsInt();
	final int h = (int) Math.ceil(fm.bottom - fm.top);
	int maxContentWidth = 0;

	final String[] lines = Cocos2dxBitmap.splitString(string, width,
			height, paint);

	if (width != 0) {
		maxContentWidth = width;
	} else {
		/* Compute the max width. */
		int temp = 0;
		for (final String line : lines) {
			temp = (int) FloatMath.ceil(paint.measureText(line, 0,
					line.length()));
			if (temp > maxContentWidth) {
				maxContentWidth = temp;
			}
		}
	}

	return new TextProperty(maxContentWidth, h, lines);
}
 

private static int computeY(final FontMetricsInt fontMetricsInt,
		final int constrainHeight, final int totalHeight,
		final int verticalAlignment) {
	int y = -fontMetricsInt.top;

	if (constrainHeight > totalHeight) {
		switch (verticalAlignment) {
		case VERTICALALIGN_TOP:
			y = -fontMetricsInt.top;
			break;
		case VERTICALALIGN_CENTER:
			y = -fontMetricsInt.top + (constrainHeight - totalHeight)
					/ 2;
			break;
		case VERTICALALIGN_BOTTOM:
			y = -fontMetricsInt.top + (constrainHeight - totalHeight);
			break;
		default:
			break;
		}
	}

	return y;
}
 

/**
 * 代码跟父类代码相似，就是getCachedDrawable()替换成getDrawable（）,因为前者里面的图片是WeakReference，
 * 容易被gc回收，所以这里要避免这个问题
 */
@Override
public int getSize(Paint paint, CharSequence text, int start, int end,
                   FontMetricsInt fm) {
    Drawable d = getDrawable();

    if (lineHeight > 0) {
        return (int) (d.getIntrinsicWidth() * scale);
    } else {
        Rect rect = d.getBounds();

        if (fm != null) {
            fm.ascent = -rect.bottom;
            fm.descent = 0;

            fm.top = fm.ascent;
            fm.bottom = 0;
        }
        return rect.right;

    }
}
 

private static TextProperty computeTextProperty(final String string,
		final int width, final int height, final Paint paint) {
	final FontMetricsInt fm = paint.getFontMetricsInt();
	final int h = (int) Math.ceil(fm.bottom - fm.top);
	int maxContentWidth = 0;

	final String[] lines = Cocos2dxBitmap.splitString(string, width,
			height, paint);

	if (width != 0) {
		maxContentWidth = width;
	} else {
		/* Compute the max width. */
		int temp = 0;
		for (final String line : lines) {
			temp = (int) FloatMath.ceil(paint.measureText(line, 0,
					line.length()));
			if (temp > maxContentWidth) {
				maxContentWidth = temp;
			}
		}
	}

	return new TextProperty(maxContentWidth, h, lines);
}
 

private static int computeY(final FontMetricsInt fontMetricsInt,
		final int constrainHeight, final int totalHeight,
		final int verticalAlignment) {
	int y = -fontMetricsInt.top;

	if (constrainHeight > totalHeight) {
		switch (verticalAlignment) {
		case VERTICALALIGN_TOP:
			y = -fontMetricsInt.top;
			break;
		case VERTICALALIGN_CENTER:
			y = -fontMetricsInt.top + (constrainHeight - totalHeight)
					/ 2;
			break;
		case VERTICALALIGN_BOTTOM:
			y = -fontMetricsInt.top + (constrainHeight - totalHeight);
			break;
		default:
			break;
		}
	}

	return y;
}
 

private void drawData(Canvas canvas) {
    // 先绘制选中的text再往上往下绘制其余的text
    float scale = parabola(mViewHeight / 4.0f, mMoveLen);
    float size = (mMaxTextSize - mMinTextSize) * scale + mMinTextSize;
    mPaint.setTextSize(size);
    mPaint.setAlpha((int) ((mMaxTextAlpha - mMinTextAlpha) * scale + mMinTextAlpha));
    // text居中绘制，注意baseline的计算才能达到居中，y值是text中心坐标
    float x = (float) (mViewWidth / 2.0);
    float y = (float) (mViewHeight / 2.0 + mMoveLen);
    FontMetricsInt fmi = mPaint.getFontMetricsInt();
    float baseline = (float) (y - (fmi.bottom / 2.0 + fmi.top / 2.0));
    if (mDataList.size() > 0) {
        canvas.drawText(mDataList.get(mCurrentSelected), x, baseline,
                mPaint);
    }
    // 绘制上方data
    for (int i = 1; (mCurrentSelected - i) >= 0; i++) {
        drawOtherText(canvas, i, -1);
    }
    // 绘制下方data
    for (int i = 1; (mCurrentSelected + i) < mDataList.size(); i++) {
        drawOtherText(canvas, i, 1);
    }
}
 

private static TextProperty computeTextProperty(final String string,
		final int width, final int height, final Paint paint) {
	final FontMetricsInt fm = paint.getFontMetricsInt();
	final int h = (int) Math.ceil(fm.bottom - fm.top);
	int maxContentWidth = 0;

	final String[] lines = Cocos2dxBitmap.splitString(string, width,
			height, paint);

	if (width != 0) {
		maxContentWidth = width;
	} else {
		/* Compute the max width. */
		int temp = 0;
		for (final String line : lines) {
			temp = (int) FloatMath.ceil(paint.measureText(line, 0,
					line.length()));
			if (temp > maxContentWidth) {
				maxContentWidth = temp;
			}
		}
	}

	return new TextProperty(maxContentWidth, h, lines);
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View root = inflater.inflate(R.layout.lb_error_fragment, container, false);

    mErrorFrame = root.findViewById(R.id.error_frame);
    updateBackground();

    mImageView = (ImageView) root.findViewById(R.id.image);
    updateImageDrawable();

    mTextView = (TextView) root.findViewById(R.id.message);
    updateMessage();

    mButton = (Button) root.findViewById(R.id.button);
    updateButton();

    mTitleView = (TitleView) root.findViewById(R.id.browse_title_group);
    updateTitle();

    FontMetricsInt metrics = getFontMetricsInt(mTextView);
    int underImageBaselineMargin = container.getResources().getDimensionPixelSize(
            R.dimen.lb_error_under_image_baseline_margin);
    setTopMargin(mTextView, underImageBaselineMargin + metrics.ascent);

    int underMessageBaselineMargin = container.getResources().getDimensionPixelSize(
            R.dimen.lb_error_under_message_baseline_margin);
    setTopMargin(mButton, underMessageBaselineMargin - metrics.descent);

    return root;
}
 

@Override public int getSize(Paint paint, CharSequence text, int start, int end,
                             FontMetricsInt fm)
{
  if (fm != null && this.fm != null) {
    fm.ascent  = this.fm.ascent;
    fm.descent = this.fm.descent;
    fm.top     = this.fm.top;
    fm.bottom  = this.fm.bottom;
    return size;
  } else {
    return super.getSize(paint, text, start, end, fm);
  }
}
 

/**
 * @param wp
 */
private static void expandMetricsFromPaint(FontMetricsInt fmi, TextPaint wp) {
  final int previousTop = fmi.top;
  final int previousAscent = fmi.ascent;
  final int previousDescent = fmi.descent;
  final int previousBottom = fmi.bottom;
  final int previousLeading = fmi.leading;

  wp.getFontMetricsInt(fmi);

  updateMetrics(fmi, previousTop, previousAscent, previousDescent, previousBottom,
      previousLeading);
}
 

static void updateMetrics(FontMetricsInt fmi, int previousTop, int previousAscent,
                          int previousDescent, int previousBottom, int previousLeading) {
  fmi.top = Math.min(fmi.top, previousTop);
  fmi.ascent = Math.min(fmi.ascent, previousAscent);
  fmi.descent = Math.max(fmi.descent, previousDescent);
  fmi.bottom = Math.max(fmi.bottom, previousBottom);
  fmi.leading = Math.max(fmi.leading, previousLeading);
}
 

/**
 * @param wp
 */
private static void expandMetricsFromPaint(FontMetricsInt fmi, TextPaint wp) {
  final int previousTop = fmi.top;
  final int previousAscent = fmi.ascent;
  final int previousDescent = fmi.descent;
  final int previousBottom = fmi.bottom;
  final int previousLeading = fmi.leading;

  wp.getFontMetricsInt(fmi);

  updateMetrics(fmi, previousTop, previousAscent, previousDescent, previousBottom,
      previousLeading);
}
 

static void updateMetrics(FontMetricsInt fmi, int previousTop, int previousAscent,
                          int previousDescent, int previousBottom, int previousLeading) {
  fmi.top = Math.min(fmi.top, previousTop);
  fmi.ascent = Math.min(fmi.ascent, previousAscent);
  fmi.descent = Math.max(fmi.descent, previousDescent);
  fmi.bottom = Math.max(fmi.bottom, previousBottom);
  fmi.leading = Math.max(fmi.leading, previousLeading);
}
 

private static BoringLayout.Metrics toBoringFontMetrics(FontMetricsInt metrics,
        @Nullable BoringLayout.Metrics fontMetrics) {

    if (fontMetrics == null) {
        fontMetrics = new BoringLayout.Metrics();
    }

    fontMetrics.ascent = metrics.ascent;
    fontMetrics.bottom = metrics.bottom;
    fontMetrics.descent = metrics.descent;
    fontMetrics.leading = metrics.leading;
    fontMetrics.top = metrics.top;
    return fontMetrics;
}
 

@Override
public int getSize(@NonNull Paint paint, CharSequence text, int start, int end, FontMetricsInt fm) {
  if (fm != null && this.fm != null) {
    fm.ascent  = this.fm.ascent;
    fm.descent = this.fm.descent;
    fm.top     = this.fm.top;
    fm.bottom  = this.fm.bottom;
    fm.leading = this.fm.leading;
    return size;
  } else {
    return super.getSize(paint, text, start, end, fm);
  }
}
 

@Override
protected void onDraw(Canvas canvas) {
	if(!isLoadImg) {  //如果不加载图片，则只显示背景
		super.onDraw(canvas);
		return;
	}
	if(isComplete) {
		super.onDraw(canvas);
		return;
	}
	mXCenter = getWidth() / 2;
	mYCenter = getHeight() / 2;
	canvas.drawCircle(mXCenter, mYCenter, mRingRadius, mCirclePaint);
	
	if (mProgress >= 0) {
		//设置椭圆上下左右的坐标
		oval.left = mXCenter - mRingRadius;  
		oval.top = mYCenter - mRingRadius;
		oval.right = mXCenter + mRingRadius;
		oval.bottom = mYCenter + mRingRadius;
		canvas.drawArc(oval, -90, ((float)mProgress / mTotalProgress) * 360, false, mRingPaint); //
		
		String percentTxt = mProgress + "%";
		//计算文字垂直居中的baseline
		FontMetricsInt fontMetrics = mTxtPaint.getFontMetricsInt();
		float baseline = oval.top + (oval.bottom - oval.top - fontMetrics.bottom + fontMetrics.top) / 2 - fontMetrics.top;
		canvas.drawText(percentTxt, mXCenter, baseline, mTxtPaint);
	}
}
 

@Override
public int getSize(Paint paint, CharSequence text, int start, int end, FontMetricsInt fm) {
    float padding = paint.measureText(" ", 0, 1) * 2;
    float slash = paint.measureText("/", 0, 1);
    float textSize = paint.measureText(text, start, end);
    return (int) (padding + slash + textSize);
}
 

private void setupFontMetrics(CharSequence text, int start, int end, FontMetricsInt fm, Paint p) {
    txtPaint.set(p);
    final CharacterStyle[] otherSpans = ((Spanned) text).getSpans(start, end, CharacterStyle.class);
    for (CharacterStyle otherSpan : otherSpans) {
        otherSpan.updateDrawState(txtPaint);
    }
    txtPaint.setTextSize(p.getTextSize());
    if (fm != null) {
        txtPaint.getFontMetricsInt(fm);
    }
}
 

@Override public int getSize(@NonNull Paint paint, CharSequence text, int start, int end, FontMetricsInt fm) {
    setupFontMetrics(text, start, end, fm, paint);
    if (fm != null) {
        final int padding = dims.getPadding();
        final int margin = dims.getMarginTop();
        fm.ascent = Math.min(fm.top, fm.ascent - padding) - margin;
        fm.descent = Math.max(fm.bottom, padding);
        fm.top = fm.ascent;
        fm.bottom = fm.descent;
    }
    return measureWidth(txtPaint, text, start, end, dims.isRtl());
}
 

private boolean saveFileAddedVoice(String path, String voice, String savePath) {
    LogInfo.log("fornia", "voice:" + voice);
    if (!new File(path).exists()) {
        return false;
    }
    Options options = new Options();
    options.inJustDecodeBounds = false;
    Bitmap bitmap0 = BitmapFactory.decodeFile(path, options);
    int width = options.outWidth;
    int height = options.outHeight;
    Bitmap bitmapPic = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmapPic);
    canvas.drawBitmap(bitmap0, null, new Rect(0, 0, width, height), null);
    Rect targetBgRect = new Rect(0, height - getTextBgHeight(), width, height);
    if (!isOrigPicMode) {
        Paint voiceBgPaint = new Paint();
        voiceBgPaint.setColor(getResources().getColor(2131493164));
        voiceBgPaint.setStyle(Style.FILL);
        voiceBgPaint.setFlags(2);
        canvas.drawRect(targetBgRect, voiceBgPaint);
        voiceBgPaint.setColor(-1);
        voiceBgPaint.setTextSize((float) getTextSize());
        voiceBgPaint.setTextAlign(Align.CENTER);
        FontMetricsInt fontMetrics = voiceBgPaint.getFontMetricsInt();
        String str = voice;
        canvas.drawText(str, (float) targetBgRect.centerX(), (float) ((targetBgRect.top + ((((targetBgRect.bottom - targetBgRect.top) - fontMetrics.bottom) + fontMetrics.top) / 2)) - fontMetrics.top), voiceBgPaint);
    }
    return FileUtils.saveBitmapByUser(this.mContext, bitmapPic);
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View root = inflater.inflate(R.layout.lb_error_fragment, container, false);

    mErrorFrame = root.findViewById(R.id.error_frame);
    updateBackground();

    mImageView = (ImageView) root.findViewById(R.id.image);
    updateImageDrawable();

    mTextView = (TextView) root.findViewById(R.id.message);
    updateMessage();

    mButton = (Button) root.findViewById(R.id.button);
    updateButton();

    mTitleView = (TitleView) root.findViewById(R.id.browse_title_group);
    updateTitle();

    FontMetricsInt metrics = getFontMetricsInt(mTextView);
    int underImageBaselineMargin = container.getResources().getDimensionPixelSize(
            R.dimen.lb_error_under_image_baseline_margin);
    setTopMargin(mTextView, underImageBaselineMargin + metrics.ascent);

    int underMessageBaselineMargin = container.getResources().getDimensionPixelSize(
            R.dimen.lb_error_under_message_baseline_margin);
    setTopMargin(mButton, underMessageBaselineMargin - metrics.descent);

    return root;
}
 

private String getFileAddedWatermark(String path, String text, String voice) {
    if (!new File(path).exists()) {
        return null;
    }
    Options options = new Options();
    options.inJustDecodeBounds = false;
    Bitmap bitmap0 = BitmapFactory.decodeFile(path, options);
    int width = options.outWidth;
    int height = options.outHeight;
    Bitmap bitmapPic = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmapPic);
    canvas.drawBitmap(bitmap0, null, new Rect(0, 0, width, height), null);
    Paint textPaint = new Paint();
    textPaint.setColor(-1);
    textPaint.setTextSize((float) getTextSize());
    textPaint.setFlags(2);
    canvas.drawText(text, 0, text.length(), 30.0f, 50.0f, textPaint);
    Rect rect = new Rect(0, height - getTextBgHeight(), width, height);
    if (!isOrigPicMode) {
        Paint voiceBgPaint = new Paint();
        voiceBgPaint.setColor(getResources().getColor(2131493164));
        voiceBgPaint.setStyle(Style.FILL);
        voiceBgPaint.setFlags(2);
        canvas.drawRect(rect, voiceBgPaint);
        voiceBgPaint.setColor(-1);
        voiceBgPaint.setTextSize((float) getTextSize());
        voiceBgPaint.setTextAlign(Align.CENTER);
        FontMetricsInt fontMetrics = voiceBgPaint.getFontMetricsInt();
        int baseline = (rect.top + ((((rect.bottom - rect.top) - fontMetrics.bottom) + fontMetrics.top) / 2)) - fontMetrics.top;
        canvas.drawText(voice, (float) rect.centerX(), (float) baseline, voiceBgPaint);
    }
    return saveBitmap(bitmapPic);
}
 

/**
 * @param canvas
 * @param position 距离mCurrentSelected的差值
 * @param type     1表示向下绘制，-1表示向上绘制
 */
private void drawOtherText(Canvas canvas, int position, int type) {
    float d = (float) (MARGIN_ALPHA * mMinTextSize * position + type
            * mMoveLen);
    float scale = parabola(mViewHeight / 4.0f, d);
    float size = (mMaxTextSize - mMinTextSize) * scale + mMinTextSize;
    mPaint.setTextSize(size);
    mPaint.setAlpha((int) ((mMaxTextAlpha - mMinTextAlpha) * scale + mMinTextAlpha));
    float y = (float) (mViewHeight / 2.0 + type * d);
    FontMetricsInt fmi = mPaint.getFontMetricsInt();
    float baseline = (float) (y - (fmi.bottom / 2.0 + fmi.top / 2.0));
    canvas.drawText(mDataList.get(mCurrentSelected + type * position),
            (float) (mViewWidth / 2.0), baseline, mPaint);
}
 

@Override
public int getSize(Paint paint, CharSequence text, int start, int end, FontMetricsInt fm) {
    fm = fm == null ? paint.getFontMetricsInt() : fm;
    int iconSize = fm.bottom - fm.top;
    mDrawable.setBounds(0, 0, iconSize, iconSize);
    return super.getSize(paint, text, start, end, fm);
}
 

@Override
public int getSize(@NonNull Paint paint, CharSequence text, int start, int end, FontMetricsInt fm) {
    if (fm != null && this.fm != null) {
        fm.ascent = this.fm.ascent;
        fm.descent = this.fm.descent;
        fm.top = this.fm.top;
        fm.bottom = this.fm.bottom;
        fm.leading = this.fm.leading;
        return size;
    } else {
        return super.getSize(paint, text, start, end, fm);
    }
}
 

@Override
public int getSize(@NonNull Paint paint, CharSequence text, int start, int end, FontMetricsInt fm) {
  if (fm != null && this.fm != null) {
    fm.ascent  = this.fm.ascent;
    fm.descent = this.fm.descent;
    fm.top     = this.fm.top;
    fm.bottom  = this.fm.bottom;
    fm.leading = this.fm.leading;
    return size;
  } else {
    return super.getSize(paint, text, start, end, fm);
  }
}
 

static void updateMetrics(FontMetricsInt fmi, int previousTop, int previousAscent,
        int previousDescent, int previousBottom, int previousLeading) {
    fmi.top     = Math.min(fmi.top,     previousTop);
    fmi.ascent  = Math.min(fmi.ascent,  previousAscent);
    fmi.descent = Math.max(fmi.descent, previousDescent);
    fmi.bottom  = Math.max(fmi.bottom,  previousBottom);
    fmi.leading = Math.max(fmi.leading, previousLeading);
}
 

/**
 * @param wp
 */
private static void expandMetricsFromPaint(FontMetricsInt fmi, TextPaint wp) {
    final int previousTop     = fmi.top;
    final int previousAscent  = fmi.ascent;
    final int previousDescent = fmi.descent;
    final int previousBottom  = fmi.bottom;
    final int previousLeading = fmi.leading;

    wp.getFontMetricsInt(fmi);

    updateMetrics(fmi, previousTop, previousAscent, previousDescent, previousBottom,
            previousLeading);
}