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

Example 71 with Canvas

use of android.graphics.Canvas in project ShowcaseView by amlcurran.

the class StandardShowcaseDrawer method drawShowcase.

@Override
public void drawShowcase(Bitmap buffer, float x, float y, float scaleMultiplier) {
    Canvas bufferCanvas = new Canvas(buffer);
    bufferCanvas.drawCircle(x, y, showcaseRadius, eraserPaint);
    int halfW = getShowcaseWidth() / 2;
    int halfH = getShowcaseHeight() / 2;
    int left = (int) (x - halfW);
    int top = (int) (y - halfH);
    showcaseDrawable.setBounds(left, top, left + getShowcaseWidth(), top + getShowcaseHeight());
    showcaseDrawable.draw(bufferCanvas);
}

Example 72 with Canvas

use of android.graphics.Canvas in project iosched by google.

the class BezelImageView method onDraw.

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;
    }
    int width = mBounds.width();
    int height = mBounds.height();
    if (width == 0 || height == 0) {
        return;
    }
    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache.
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }
        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint, Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint, Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }
        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }
    // Draw from cache.
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

Example 73 with Canvas

use of android.graphics.Canvas in project iosched by google.

the class UIUtils method vectorToBitmap.

public static Bitmap vectorToBitmap(@NonNull Context context, @DrawableRes int drawableResId) {
    VectorDrawableCompat vector = VectorDrawableCompat.create(context.getResources(), drawableResId, context.getTheme());
    final Bitmap bitmap = Bitmap.createBitmap(vector.getIntrinsicWidth(), vector.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    final Canvas canvas = new Canvas(bitmap);
    vector.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    vector.draw(canvas);
    return bitmap;
}

Example 74 with Canvas

use of android.graphics.Canvas in project android-maps-utils by googlemaps.

the class IconGenerator method makeIcon.

/**
     * Creates an icon with the current content and style.
     * <p/>
     * This method is useful if a custom view has previously been set, or if text content is not
     * applicable.
     */
public Bitmap makeIcon() {
    int measureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    mContainer.measure(measureSpec, measureSpec);
    int measuredWidth = mContainer.getMeasuredWidth();
    int measuredHeight = mContainer.getMeasuredHeight();
    mContainer.layout(0, 0, measuredWidth, measuredHeight);
    if (mRotation == 1 || mRotation == 3) {
        measuredHeight = mContainer.getMeasuredWidth();
        measuredWidth = mContainer.getMeasuredHeight();
    }
    Bitmap r = Bitmap.createBitmap(measuredWidth, measuredHeight, Bitmap.Config.ARGB_8888);
    r.eraseColor(Color.TRANSPARENT);
    Canvas canvas = new Canvas(r);
    if (mRotation == 0) {
    // do nothing
    } else if (mRotation == 1) {
        canvas.translate(measuredWidth, 0);
        canvas.rotate(90);
    } else if (mRotation == 2) {
        canvas.rotate(180, measuredWidth / 2, measuredHeight / 2);
    } else {
        canvas.translate(0, measuredHeight);
        canvas.rotate(270);
    }
    mContainer.draw(canvas);
    return r;
}

Example 75 with Canvas

use of android.graphics.Canvas in project gdk-compass-sample by googleglass.

the class CompassRenderer method repaint.

/**
     * Repaints the compass.
     */
private synchronized void repaint() {
    Canvas canvas = null;
    try {
        canvas = mHolder.lockCanvas();
    } catch (RuntimeException e) {
        Log.d(TAG, "lockCanvas failed", e);
    }
    if (canvas != null) {
        canvas.drawColor(Color.BLACK);
        mLayout.draw(canvas);
        try {
            mHolder.unlockCanvasAndPost(canvas);
        } catch (RuntimeException e) {
            Log.d(TAG, "unlockCanvasAndPost failed", e);
        }
    }
}