Example usage for android.graphics Canvas restore

Introduction

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

Prototype

public void restore()

Source Link

Document

This call balances a previous call to save(), and is used to remove all modifications to the matrix/clip state since the last save call.

Usage

From source file:com.github.jdsjlzx.ItemDecoration.StickyHeaderDecoration.java

/**
 * {@inheritDoc}/*from   w  w  w. java  2 s .  c  o m*/
 */
@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    final int count = parent.getChildCount();

    for (int layoutPos = 0; layoutPos < count; layoutPos++) {
        final View child = parent.getChildAt(layoutPos);

        final int adapterPos = parent.getChildAdapterPosition(child);

        if (adapterPos != RecyclerView.NO_POSITION && (layoutPos == 0 || hasHeader(adapterPos))) {
            View header = getHeader(parent, adapterPos).itemView;
            c.save();
            final int left = child.getLeft();
            final int top = getHeaderTop(parent, child, header, adapterPos, layoutPos);
            c.translate(left, top);
            header.setTranslationX(left);
            header.setTranslationY(top);
            header.draw(c);
            c.restore();
        }
    }
}

From source file:android.support.design.widget.CircularBorderDrawable.java

@Override
public void draw(Canvas canvas) {
    if (mInvalidateShader) {
        mPaint.setShader(createGradientShader());
        mInvalidateShader = false;//from www.  j a  v  a 2s .co m
    }

    final float halfBorderWidth = mPaint.getStrokeWidth() / 2f;
    final RectF rectF = mRectF;

    // We need to inset the oval bounds by half the border width. This is because stroke draws
    // the center of the border on the dimension. Whereas we want the stroke on the inside.
    copyBounds(mRect);
    rectF.set(mRect);
    rectF.left += halfBorderWidth;
    rectF.top += halfBorderWidth;
    rectF.right -= halfBorderWidth;
    rectF.bottom -= halfBorderWidth;

    canvas.save();
    canvas.rotate(mRotation, rectF.centerX(), rectF.centerY());
    // Draw the oval
    canvas.drawOval(rectF, mPaint);
    canvas.restore();
}

From source file:com.plugin.weight.ripple.RippleLayoutView.java

@Override
public void draw(Canvas canvas) {
    super.draw(canvas);
    if (animationRunning) {
        canvas.save();//from  w  w  w .  j  av  a2  s.c  o  m
        if (rippleDuration <= timer * frameRate) {
            animationRunning = false;
            timer = 0;
            durationEmpty = -1;
            timerEmpty = 0;
            // There is problem on Android M where canvas.restore() seems to be called automatically
            // For now, don't call canvas.restore() manually on Android M (API 23)
            if (Build.VERSION.SDK_INT != 23) {
                canvas.restore();
            }
            invalidate();
            if (onCompletionListener != null)
                onCompletionListener.onComplete(this);
            return;
        } else
            canvasHandler.postDelayed(runnable, frameRate);

        if (timer == 0)
            canvas.save();

        canvas.drawCircle(x, y, (radiusMax * (((float) timer * frameRate) / rippleDuration)), paint);

        paint.setColor(Color.parseColor("#ffff4444"));

        if (rippleType == 1 && originBitmap != null && (((float) timer * frameRate) / rippleDuration) > 0.4f) {
            if (durationEmpty == -1)
                durationEmpty = rippleDuration - timer * frameRate;

            timerEmpty++;
            final Bitmap tmpBitmap = getCircleBitmap(
                    (int) ((radiusMax) * (((float) timerEmpty * frameRate) / (durationEmpty))));
            canvas.drawBitmap(tmpBitmap, 0, 0, paint);
            tmpBitmap.recycle();
        }

        paint.setColor(rippleColor);

        if (rippleType == 1) {
            if ((((float) timer * frameRate) / rippleDuration) > 0.6f)
                paint.setAlpha((int) (rippleAlpha
                        - ((rippleAlpha) * (((float) timerEmpty * frameRate) / (durationEmpty)))));
            else
                paint.setAlpha(rippleAlpha);
        } else
            paint.setAlpha(
                    (int) (rippleAlpha - ((rippleAlpha) * (((float) timer * frameRate) / rippleDuration))));

        timer++;
    }
}

From source file:com.jungle.toolbaractivity.layout.HorizontalSwipeBackLayout.java

@Override
protected void dispatchDraw(Canvas canvas) {
    if (!mSwipeBackEnable) {
        super.dispatchDraw(canvas);
        return;/*from   w w w  .j ava2s.  co m*/
    }

    final int width = getMeasuredWidth();
    final int height = getMeasuredHeight();

    if (mBkgDrawable != null) {
        mBkgDrawable.setBounds((int) (mTranslationX + 0.5f), 0, width, height);
        mBkgDrawable.draw(canvas);
    } else {
        Paint paint = new Paint();
        paint.setColor(Color.WHITE);
        canvas.drawRect(mTranslationX, 0, width, height, paint);
    }

    if (mTranslationX > 0) {
        canvas.save();
        canvas.translate(mTranslationX - mShadowWidth, 0);
        mEdgeShadowDrawable.setBounds(0, 0, mShadowWidth, height);
        mEdgeShadowDrawable.draw(canvas);
        canvas.restore();
    }

    super.dispatchDraw(canvas);
}

From source file:io.github.sin3hz.fastjumper.FastJumperDecoration.java

@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    super.onDrawOver(c, parent, state);
    mDirtyBounds.setEmpty();// w  ww  .ja v a2s .co  m
    if (mState == STATE_GONE) {
        return;
    }
    c.save();
    updateBounds();
    c.clipRect(mSelfBounds);
    mThumbDrawable.setBounds(mThumbBounds);
    mThumbDrawable.draw(c);
    mLabelDrawable.setBounds(mLabelBounds);
    mLabelDrawable.draw(c);
    c.restore();
}

From source file:com.byagowi.persiancalendar.view.QiblaCompassView.java

public void drawTrueNorthArrow(Canvas canvas, float drawnAngle) {
    trueNorthArrowPaint.reset();//w  w  w.j  av  a2  s  .c  om
    trueNorthArrowPaint.setColor(Color.RED);
    trueNorthArrowPaint.setStyle(Paint.Style.FILL);
    trueNorthArrowPaint.setAlpha(100);
    int r = Radius / 12;
    // Construct a wedge-shaped path
    mPath.reset();
    mPath.moveTo(px, py - px);
    mPath.lineTo(px - r, py);
    mPath.lineTo(px, py + r);
    mPath.lineTo(px + r, py);
    mPath.addCircle(px, py, r, Path.Direction.CCW);
    mPath.close();
    canvas.drawPath(mPath, trueNorthArrowPaint);
    dashedPaint.setColor(Color.RED);
    canvas.drawLine(px, py - px, px, py + Radius, dashedPaint);
    canvas.drawCircle(px, py, 5, dashedPaint);
    canvas.restore();
}

From source file:com.github.pedrovgs.nox.NoxView.java

/**
 * Given a List<NoxItem> instances configured previously gets the associated resource to draw the
 * view./*from   ww w.  j a va 2 s. co m*/
 */
@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (noxItemCatalog == null) {
        wasInvalidatedBefore = false;
        return;
    }
    updateShapeOffset();
    for (int i = 0; i < noxItemCatalog.size(); i++) {
        if (shape.isItemInsideView(i)) {
            loadNoxItem(i);
            float left = shape.getXForItemAtPosition(i);
            float top = shape.getYForItemAtPosition(i);
            drawNoxItem(canvas, i, left, top);
        }
    }
    canvas.restore();
    wasInvalidatedBefore = false;
}

From source file:com.mukesh.OtpView.java

@Override
protected void onDraw(Canvas canvas) {
    canvas.save();
    updatePaints();
    drawOtpView(canvas);
    canvas.restore();
}

From source file:com.ssn.currency.convertor.WheelView.java

/**
 * Draws items/*from  ww w.jav  a 2 s  .  c  o m*/
 * @param canvas the canvas for drawing
 */
private void drawItems(Canvas canvas) {
    canvas.save();

    int top = (currentItem - firstItem) * getItemHeight() + (getItemHeight() - getHeight()) / 2;
    canvas.translate(PADDING, -top + scrollingOffset);

    itemsLayout.draw(canvas);

    canvas.restore();
}

From source file:com.google.android.apps.muzei.settings.ChooseSourceFragment.java

private Bitmap generateSourceImage(Drawable image) {
    Bitmap bitmap = Bitmap.createBitmap(mItemImageSize, mItemImageSize, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    mTempRectF.set(0, 0, mItemImageSize, mItemImageSize);
    canvas.drawOval(mTempRectF, mImageFillPaint);
    if (image != null) {
        canvas.saveLayer(0, 0, mItemImageSize, mItemImageSize, mAlphaPaint, Canvas.ALL_SAVE_FLAG);
        image.setBounds(0, 0, mItemImageSize, mItemImageSize);
        image.draw(canvas);//from  www  .  j av  a 2s  .c  om
        canvas.restore();
    }
    return bitmap;
}