Example usage for android.graphics Canvas drawPath

Introduction

In this page you can find the example usage for android.graphics Canvas drawPath.

Prototype

public void drawPath(@NonNull Path path, @NonNull Paint paint) 

Source Link

Document

Draw the specified path using the specified paint.

Usage

From source file:ee.ioc.phon.android.speak.Utils.java

static Bitmap bytesToBitmap(byte[] byteBuffer, int w, int h, int startPosition, int endPosition) {
    final ShortBuffer waveBuffer = ByteBuffer.wrap(byteBuffer).order(ByteOrder.LITTLE_ENDIAN).asShortBuffer();
    final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
    final Canvas c = new Canvas(b);
    final Paint paint = new Paint();
    paint.setColor(0xFFFFFFFF); // 0xAARRGGBB
    paint.setAntiAlias(true);//w w  w  . ja  v  a  2 s . co  m
    paint.setStyle(Paint.Style.STROKE);
    paint.setAlpha(80);

    final PathEffect effect = new CornerPathEffect(3);
    paint.setPathEffect(effect);

    final int numSamples = waveBuffer.remaining();
    int endIndex;
    if (endPosition == 0) {
        endIndex = numSamples;
    } else {
        endIndex = Math.min(endPosition, numSamples);
    }

    int startIndex = startPosition - 2000; // include 250ms before speech
    if (startIndex < 0) {
        startIndex = 0;
    }
    final int numSamplePerWave = 200; // 8KHz 25ms = 200 samples
    final float scale = 10.0f / 65536.0f;

    final int count = (endIndex - startIndex) / numSamplePerWave;
    final float deltaX = 1.0f * w / count;
    int yMax = h / 2;
    Path path = new Path();
    c.translate(0, yMax);
    float x = 0;
    path.moveTo(x, 0);
    for (int i = 0; i < count; i++) {
        final int avabs = getAverageAbs(waveBuffer, startIndex, i, numSamplePerWave);
        int sign = ((i & 01) == 0) ? -1 : 1;
        final float y = Math.min(yMax, avabs * h * scale) * sign;
        path.lineTo(x, y);
        x += deltaX;
        path.lineTo(x, y);
    }
    if (deltaX > 4) {
        paint.setStrokeWidth(2);
    } else {
        paint.setStrokeWidth(Math.max(0, (int) (deltaX - .05)));
    }
    c.drawPath(path, paint);
    return b;
}

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From source file:com.github.shareme.gwsmaterialuikit.library.material.drawable.LineMorphingDrawable.java

@Override
public void draw(Canvas canvas) {
    int restoreCount = canvas.save();
    float degrees = (mClockwise ? 180 : -180) * ((mPrevState < mCurState ? 0f : 1f) + mAnimProgress);

    if (mIsRtl)// ww  w .j a v  a2s .c om
        canvas.scale(-1f, 1f, mDrawBound.centerX(), mDrawBound.centerY());

    canvas.rotate(degrees, mDrawBound.centerX(), mDrawBound.centerY());
    canvas.drawPath(mPath, mPaint);
    canvas.restoreToCount(restoreCount);
}

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From source file:cc.kenai.common.AnimatedSvgView.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (mState == STATE_NOT_STARTED || mGlyphData == null) {
        return;//from  w  ww.ja  va 2  s .c  om
    }

    long t = System.currentTimeMillis() - mStartTime;

    for (int i = 0; i < mGlyphData.length; i++) {
        float phase = MathUtil.constrain(0, 1,
                (t - (mTraceTime - mTraceTimePerGlyph) * i * 1f / mGlyphData.length) * 1f / mTraceTimePerGlyph);
        float distance = INTERPOLATOR.getInterpolation(phase) * mGlyphData[i].length;
        mGlyphData[i].paint.setColor(mTraceResidueColors[i]);
        mGlyphData[i].paint
                .setPathEffect(new DashPathEffect(new float[] { distance, mGlyphData[i].length }, 0));
        canvas.drawPath(mGlyphData[i].path, mGlyphData[i].paint);

        mGlyphData[i].paint.setColor(mTraceColors[i]);
        mGlyphData[i].paint.setPathEffect(new DashPathEffect(
                new float[] { 0, distance, phase > 0 ? mMarkerLength : 0, mGlyphData[i].length }, 0));
        canvas.drawPath(mGlyphData[i].path, mGlyphData[i].paint);
    }

    if (t > mFillStart) {
        if (mState < STATE_FILL_STARTED) {
            changeState(STATE_FILL_STARTED);
        }

        float phase = MathUtil.constrain(0, 1, (t - mFillStart) * 1f / mFillTime);
        for (int i = 0; i < mGlyphData.length; i++) {
            GlyphData glyphData = mGlyphData[i];
            mFillPaint.setARGB((int) (phase * ((float) mFillAlphas[i] / (float) 255) * 255), mFillReds[i],
                    mFillGreens[i], mFillBlues[i]);
            canvas.drawPath(glyphData.path, mFillPaint);
        }
    }

    if (t < mFillStart + mFillTime) {
        ViewCompat.postInvalidateOnAnimation(this);
    } else {
        changeState(STATE_FINISHED);
    }
}

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From source file:com.codegarden.nativenavigation.JuceActivity.java

public final int[] renderGlyph(char glyph, Paint paint, android.graphics.Matrix matrix, Rect bounds) {
    Path p = new Path();
    paint.getTextPath(String.valueOf(glyph), 0, 1, 0.0f, 0.0f, p);

    RectF boundsF = new RectF();
    p.computeBounds(boundsF, true);//from   w ww  . ja  va  2  s.  co  m
    matrix.mapRect(boundsF);

    boundsF.roundOut(bounds);
    bounds.left--;
    bounds.right++;

    final int w = bounds.width();
    final int h = Math.max(1, bounds.height());

    Bitmap bm = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);

    Canvas c = new Canvas(bm);
    matrix.postTranslate(-bounds.left, -bounds.top);
    c.setMatrix(matrix);
    c.drawPath(p, paint);

    final int sizeNeeded = w * h;
    if (cachedRenderArray.length < sizeNeeded)
        cachedRenderArray = new int[sizeNeeded];

    bm.getPixels(cachedRenderArray, 0, w, 0, 0, w, h);
    bm.recycle();
    return cachedRenderArray;
}

---

From source file:com.daitu_liang.study.mytest.svg.AnimatedSvgView.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (mState == STATE_NOT_STARTED || mGlyphData == null) {
        return;//  w  w  w. jav a  2s  . c  o  m
    }

    long t = System.currentTimeMillis() - mStartTime;

    // ?
    for (int i = 0; i < mGlyphData.length; i++) {
        float phase = MathUtil.constrain(0, 1,
                (t - (mTraceTime - mTraceTimePerGlyph) * i * 1f / mGlyphData.length) * 1f / mTraceTimePerGlyph);
        float distance = INTERPOLATOR.getInterpolation(phase) * mGlyphData[i].length;
        mGlyphData[i].paint.setColor(mTraceResidueColors[i]);
        mGlyphData[i].paint
                .setPathEffect(new DashPathEffect(new float[] { distance, mGlyphData[i].length }, 0));
        canvas.drawPath(mGlyphData[i].path, mGlyphData[i].paint);

        mGlyphData[i].paint.setColor(mTraceColors[i]);
        mGlyphData[i].paint.setPathEffect(new DashPathEffect(
                new float[] { 0, distance, phase > 0 ? mMarkerLength : 0, mGlyphData[i].length }, 0));
        canvas.drawPath(mGlyphData[i].path, mGlyphData[i].paint);
    }

    if (t > mFillStart) {
        if (mState < STATE_FILL_STARTED) {
            changeState(STATE_FILL_STARTED);
        }

        // ????alpha
        float phase = MathUtil.constrain(0, 1, (t - mFillStart) * 1f / mFillTime);
        for (int i = 0; i < mGlyphData.length; i++) {
            GlyphData glyphData = mGlyphData[i];
            mFillPaint.setARGB((int) (phase * ((float) mFillAlphas[i] / (float) 255) * 255), mFillReds[i],
                    mFillGreens[i], mFillBlues[i]);
            canvas.drawPath(glyphData.path, mFillPaint);
        }
    }

    if (t < mFillStart + mFillTime) {
        ViewCompat.postInvalidateOnAnimation(this);
    } else {
        changeState(STATE_FINISHED);
    }
}

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From source file:com.mukesh.OtpView.java

private void drawOtpBox(Canvas canvas, int i) {
    if (getText() != null && hideLineWhenFilled && i < getText().length()) {
        return;/* w ww  . j a va 2s  .c o  m*/
    }
    canvas.drawPath(path, paint);
}

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From source file:com.andremion.music.MusicCoverView.java

@Override
protected void onDraw(Canvas canvas) {

    if (SHAPE_CIRCLE == mShape) {
        canvas.clipPath(mClipPath);/*ww w  .j a  v  a 2 s  . c  o  m*/
    } else if (SHAPE_RECTANGLE == mShape) {
        canvas.clipPath(mClipPath);
    } else if (SHAPE_SQUARE == mShape) {
        if (getTransitionSquareAsCircle()) {
            canvas.clipPath(mClipPathAsCircle, Region.Op.REPLACE);
        } else {
            canvas.clipPath(mRectSquarePath, Region.Op.REPLACE);
        }
    }

    super.onDraw(canvas);
    canvas.drawPath(mTrackPath, mTrackPaint);
    canvas.drawPath(mDiscPathCenterDecor, mDiscPaintCenterDecor);
    canvas.drawPath(mDiscPathCenter, mDiscPaintCenter);

}

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From source file:org.ayo.robot.anim.svg.AnimatedSvgView.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (mState == STATE_NOT_STARTED || mGlyphData == null) {
        return;/*from w ww.  ja  v  a 2s .c  om*/
    }

    long t = System.currentTimeMillis() - mStartTime;

    // 
    for (int i = 0; i < mGlyphData.length; i++) {
        float phase = MathUtil.constrain(0, 1,
                (t - (mTraceTime - mTraceTimePerGlyph) * i * 1f / mGlyphData.length) * 1f / mTraceTimePerGlyph);
        float distance = INTERPOLATOR.getInterpolation(phase) * mGlyphData[i].length;
        mGlyphData[i].paint.setColor(mTraceResidueColors[i]);
        mGlyphData[i].paint
                .setPathEffect(new DashPathEffect(new float[] { distance, mGlyphData[i].length }, 0));
        canvas.drawPath(mGlyphData[i].path, mGlyphData[i].paint);

        mGlyphData[i].paint.setColor(mTraceColors[i]);
        mGlyphData[i].paint.setPathEffect(new DashPathEffect(
                new float[] { 0, distance, phase > 0 ? mMarkerLength : 0, mGlyphData[i].length }, 0));
        canvas.drawPath(mGlyphData[i].path, mGlyphData[i].paint);
    }

    if (t > mFillStart) {
        if (mState < STATE_FILL_STARTED) {
            changeState(STATE_FILL_STARTED);
        }

        // alpha
        float phase = MathUtil.constrain(0, 1, (t - mFillStart) * 1f / mFillTime);
        for (int i = 0; i < mGlyphData.length; i++) {
            GlyphData glyphData = mGlyphData[i];
            mFillPaint.setARGB((int) (phase * ((float) mFillAlphas[i] / (float) 255) * 255), mFillReds[i],
                    mFillGreens[i], mFillBlues[i]);
            canvas.drawPath(glyphData.path, mFillPaint);
        }
    }

    if (t < mFillStart + mFillTime) {
        ViewCompat.postInvalidateOnAnimation(this);
    } else {
        changeState(STATE_FINISHED);
    }
}

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From source file:com.kmagic.solitaire.DrawMaster.java

/**
 * Draw a diamond//from  ww  w  .jav  a  2  s .co  m
 * @param canvas canvas to draw on
 * @param width width of the diamond
 * @param height height of the diamond
 */
public void drawDiamond(final Canvas canvas, final float width, final float height) {
    final Paint paint = getRedPaint();
    final Path path = new Path();
    path.moveTo(width / 2, 0);
    final float offset = height / 5;
    path.lineTo(offset, height / 2);
    path.lineTo(width / 2, height);
    path.lineTo(width - offset, height / 2);
    path.lineTo(width / 2, 0);
    path.close();
    canvas.drawPath(path, paint);
}

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From source file:com.blestep.sportsbracelet.view.TimelineChartView.java

private void drawTargetLine(Canvas c) {
    if (mIsShowTargetDashedLine && mTargetValue > 0) {
        if (mTargetValue > mMaxValue) {
            Path path = new Path();
            path.moveTo(0, mTopSpaceHeight);
            path.lineTo(mGraphArea.width(), mTopSpaceHeight);
            c.drawPath(path, mGraphTargetDashedLinePaint);
        } else {//from w w w. ja v  a2 s  .c o  m
            float height = mGraphArea.height();
            float y = (float) (height - (height * ((mTargetValue * 100) / mMaxValue)) / 100) + mTopSpaceHeight;
            Path path = new Path();
            path.moveTo(0, y);
            path.lineTo(mGraphArea.width(), y);
            c.drawPath(path, mGraphTargetDashedLinePaint);
        }
    }
}

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