Examples with Path android.graphics.Path used on opensource projects

Example 51 with Path

use of android.graphics.Path in project XobotOS by xamarin.

the class GradientDrawable method draw.

@Override
public void draw(Canvas canvas) {
    if (!ensureValidRect()) {
        // nothing to draw
        return;
    }
    // remember the alpha values, in case we temporarily overwrite them
    // when we modulate them with mAlpha
    final int prevFillAlpha = mFillPaint.getAlpha();
    final int prevStrokeAlpha = mStrokePaint != null ? mStrokePaint.getAlpha() : 0;
    // compute the modulate alpha values
    final int currFillAlpha = modulateAlpha(prevFillAlpha);
    final int currStrokeAlpha = modulateAlpha(prevStrokeAlpha);
    final boolean haveStroke = currStrokeAlpha > 0 && mStrokePaint.getStrokeWidth() > 0;
    final boolean haveFill = currFillAlpha > 0;
    final GradientState st = mGradientState;
    /*  we need a layer iff we're drawing both a fill and stroke, and the
            stroke is non-opaque, and our shapetype actually supports
            fill+stroke. Otherwise we can just draw the stroke (if any) on top
            of the fill (if any) without worrying about blending artifacts.
         */
    final boolean useLayer = haveStroke && haveFill && st.mShape != LINE && currStrokeAlpha < 255 && (mAlpha < 255 || mColorFilter != null);
    /*  Drawing with a layer is slower than direct drawing, but it
            allows us to apply paint effects like alpha and colorfilter to
            the result of multiple separate draws. In our case, if the user
            asks for a non-opaque alpha value (via setAlpha), and we're
            stroking, then we need to apply the alpha AFTER we've drawn
            both the fill and the stroke.
        */
    if (useLayer) {
        if (mLayerPaint == null) {
            mLayerPaint = new Paint();
        }
        mLayerPaint.setDither(mDither);
        mLayerPaint.setAlpha(mAlpha);
        mLayerPaint.setColorFilter(mColorFilter);
        float rad = mStrokePaint.getStrokeWidth();
        canvas.saveLayer(mRect.left - rad, mRect.top - rad, mRect.right + rad, mRect.bottom + rad, mLayerPaint, Canvas.HAS_ALPHA_LAYER_SAVE_FLAG);
        // don't perform the filter in our individual paints
        // since the layer will do it for us
        mFillPaint.setColorFilter(null);
        mStrokePaint.setColorFilter(null);
    } else {
        /*  if we're not using a layer, apply the dither/filter to our
                individual paints
            */
        mFillPaint.setAlpha(currFillAlpha);
        mFillPaint.setDither(mDither);
        mFillPaint.setColorFilter(mColorFilter);
        if (haveStroke) {
            mStrokePaint.setAlpha(currStrokeAlpha);
            mStrokePaint.setDither(mDither);
            mStrokePaint.setColorFilter(mColorFilter);
        }
    }
    switch(st.mShape) {
        case RECTANGLE:
            if (st.mRadiusArray != null) {
                if (mPathIsDirty || mRectIsDirty) {
                    mPath.reset();
                    mPath.addRoundRect(mRect, st.mRadiusArray, Path.Direction.CW);
                    mPathIsDirty = mRectIsDirty = false;
                }
                canvas.drawPath(mPath, mFillPaint);
                if (haveStroke) {
                    canvas.drawPath(mPath, mStrokePaint);
                }
            } else if (st.mRadius > 0.0f) {
                // since the caller is only giving us 1 value, we will force
                // it to be square if the rect is too small in one dimension
                // to show it. If we did nothing, Skia would clamp the rad
                // independently along each axis, giving us a thin ellipse
                // if the rect were very wide but not very tall
                float rad = st.mRadius;
                float r = Math.min(mRect.width(), mRect.height()) * 0.5f;
                if (rad > r) {
                    rad = r;
                }
                canvas.drawRoundRect(mRect, rad, rad, mFillPaint);
                if (haveStroke) {
                    canvas.drawRoundRect(mRect, rad, rad, mStrokePaint);
                }
            } else {
                canvas.drawRect(mRect, mFillPaint);
                if (haveStroke) {
                    canvas.drawRect(mRect, mStrokePaint);
                }
            }
            break;
        case OVAL:
            canvas.drawOval(mRect, mFillPaint);
            if (haveStroke) {
                canvas.drawOval(mRect, mStrokePaint);
            }
            break;
        case LINE:
            {
                RectF r = mRect;
                float y = r.centerY();
                canvas.drawLine(r.left, y, r.right, y, mStrokePaint);
                break;
            }
        case RING:
            Path path = buildRing(st);
            canvas.drawPath(path, mFillPaint);
            if (haveStroke) {
                canvas.drawPath(path, mStrokePaint);
            }
            break;
    }
    if (useLayer) {
        canvas.restore();
    } else {
        mFillPaint.setAlpha(prevFillAlpha);
        if (haveStroke) {
            mStrokePaint.setAlpha(prevStrokeAlpha);
        }
    }
}

Example 52 with Path

use of android.graphics.Path in project XobotOS by xamarin.

the class OrientedBoundingBox method toPath.

/**
     * Currently used for debugging purpose only.
     *
     * @hide
     */
public Path toPath() {
    Path path = new Path();
    float[] point = new float[2];
    point[0] = -width / 2;
    point[1] = height / 2;
    Matrix matrix = new Matrix();
    matrix.setRotate(orientation);
    matrix.postTranslate(centerX, centerY);
    matrix.mapPoints(point);
    path.moveTo(point[0], point[1]);
    point[0] = -width / 2;
    point[1] = -height / 2;
    matrix.mapPoints(point);
    path.lineTo(point[0], point[1]);
    point[0] = width / 2;
    point[1] = -height / 2;
    matrix.mapPoints(point);
    path.lineTo(point[0], point[1]);
    point[0] = width / 2;
    point[1] = height / 2;
    matrix.mapPoints(point);
    path.lineTo(point[0], point[1]);
    path.close();
    return path;
}

Example 53 with Path

use of android.graphics.Path in project XobotOS by xamarin.

the class PathShape method clone.

@Override
public PathShape clone() throws CloneNotSupportedException {
    PathShape shape = (PathShape) super.clone();
    shape.mPath = new Path(mPath);
    return shape;
}

Example 54 with Path

use of android.graphics.Path in project XobotOS by xamarin.

the class GestureOverlayView method setGesture.

public void setGesture(Gesture gesture) {
    if (mCurrentGesture != null) {
        clear(false);
    }
    setCurrentColor(mCertainGestureColor);
    mCurrentGesture = gesture;
    final Path path = mCurrentGesture.toPath();
    final RectF bounds = new RectF();
    path.computeBounds(bounds, true);
    // TODO: The path should also be scaled to fit inside this view
    mPath.rewind();
    mPath.addPath(path, -bounds.left + (getWidth() - bounds.width()) / 2.0f, -bounds.top + (getHeight() - bounds.height()) / 2.0f);
    mResetGesture = true;
    invalidate();
}

Example 55 with Path

use of android.graphics.Path in project XobotOS by xamarin.

the class Gesture method toPath.

public Path toPath(Path path, int width, int height, int edge, int numSample) {
    if (path == null)
        path = new Path();
    final ArrayList<GestureStroke> strokes = mStrokes;
    final int count = strokes.size();
    for (int i = 0; i < count; i++) {
        path.addPath(strokes.get(i).toPath(width - 2 * edge, height - 2 * edge, numSample));
    }
    return path;
}