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.appsimobile.appsii.module.home.SunriseDrawable.java

private void drawSun(Canvas canvas, float pct) {

    // Draw the dots
    canvas.drawCircle(mBezier1x, mBezier1y, mDotRadius, mDotPaint);
    canvas.drawCircle(mBezier4x, mBezier4y, mDotRadius, mDotPaint);

    // calculate the center point of the sun image
    float x = bezierInterpolation(pct, mBezier1x, mBezier2x, mBezier3x, mBezier4x);
    float y = bezierInterpolation(pct, mBezier1y, mBezier2y, mBezier3y, mBezier4y);

    Rect sunBounds = mSunImage.getBounds();

    x -= sunBounds.width() / 2;/*from w w  w .  j  av a 2 s . co m*/
    y -= sunBounds.height() / 2;

    // if we are in rtl, we still want to show the image normally
    // so flip it back
    canvas.translate(x, y);
    if (mIsRtl) {
        canvas.save();
        canvas.scale(-1, 1, sunBounds.centerX(), sunBounds.centerY());
    }
    // draw the sun image
    mSunImage.draw(canvas);
    // restore the flip again
    if (mIsRtl) {
        canvas.restore();
    }
    canvas.translate(-x, -y);

}

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From source file:com.ttxgps.zoom.GestureImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (layout) {
        if (drawable != null && !isRecycled()) {
            canvas.save();/*from w w w. ja  va  2s  .co m*/

            float adjustedScale = scale * scaleAdjust;

            canvas.translate(x, y);

            if (rotation != 0.0f) {
                canvas.rotate(rotation);
            }

            if (adjustedScale != 1.0f) {
                canvas.scale(adjustedScale, adjustedScale);
            }

            drawable.draw(canvas);

            canvas.restore();
        }

        if (drawLock.availablePermits() <= 0) {
            drawLock.release();
        }
    }
}

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From source file:cn.lanmei.com.dingdong_2.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();
    LRecyclerViewAdapter adapter = (LRecyclerViewAdapter) parent.getAdapter();
    RecyclerView.Adapter ra = adapter.getInnerAdapter();
    final int count = ra.getItemCount();

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

        final int adapterPos = parent.getChildAdapterPosition(child);

        //            L.MyLog("sticky","onDrawOver:"+adapterPos+"getItemCount"+count);
        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:org.chromium.chrome.browser.omnibox.LocationBarPhone.java

@Override
protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
    boolean needsCanvasRestore = false;
    if (child == mUrlBar && mUrlActionsContainer.getVisibility() == VISIBLE) {
        canvas.save();/*  ww  w.  java2 s . com*/

        // Clip the URL bar contents to ensure they do not draw under the URL actions during
        // focus animations.  Based on the RTL state of the location bar, the url actions
        // container can be on the left or right side, so clip accordingly.
        if (mUrlBar.getLeft() < mUrlActionsContainer.getLeft()) {
            canvas.clipRect(0, 0, (int) mUrlActionsContainer.getX(), getBottom());
        } else {
            canvas.clipRect(mUrlActionsContainer.getX() + mUrlActionsContainer.getWidth(), 0, getWidth(),
                    getBottom());
        }
        needsCanvasRestore = true;
    }
    boolean retVal = super.drawChild(canvas, child, drawingTime);
    if (needsCanvasRestore) {
        canvas.restore();
    }
    return retVal;
}

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From source file:com.example.view.wheel.WheelView.java

/**
 * Draws value and label layout/*from  w w w  .  j  av a  2s .c  om*/
 * @param canvas the canvas for drawing
 */
private void drawValue(Canvas canvas) {
    valuePaint.setColor(VALUE_TEXT_COLOR);
    valuePaint.drawableState = getDrawableState();

    Rect bounds = new Rect();
    itemsLayout.getLineBounds(visibleItems / 2, bounds);

    // draw label
    if (labelLayout != null) {
        canvas.save();
        canvas.translate(itemsLayout.getWidth() + LABEL_OFFSET, bounds.top);
        labelLayout.draw(canvas);
        canvas.restore();
    }

    // draw current value
    if (valueLayout != null) {
        canvas.save();
        canvas.translate(0, bounds.top + scrollingOffset);
        valueLayout.draw(canvas);
        canvas.restore();
    }
}

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From source file:com.example.gatsu.theevent.HighlightView.java

protected void draw(Canvas canvas) {

    if (mHidden) {
        return;//from w  ww. ja va 2  s  .c  o  m
    }

    Path path = new Path();
    if (!hasFocus()) {
        mOutlinePaint.setColor(0xFF000000);
        canvas.drawRect(mDrawRect, mOutlinePaint);
    } else {
        Rect viewDrawingRect = new Rect();
        mContext.getDrawingRect(viewDrawingRect);
        if (mCircle) {

            canvas.save();

            float width = mDrawRect.width();
            float height = mDrawRect.height();
            path.addCircle(mDrawRect.left + (width / 2), mDrawRect.top + (height / 2), width / 2,
                    Path.Direction.CW);
            mOutlinePaint.setColor(0xFFEF04D6);

            canvas.clipPath(path, Region.Op.DIFFERENCE);
            canvas.drawRect(viewDrawingRect, hasFocus() ? mFocusPaint : mNoFocusPaint);

            canvas.restore();

        } else {

            Rect topRect = new Rect(viewDrawingRect.left, viewDrawingRect.top, viewDrawingRect.right,
                    mDrawRect.top);
            if (topRect.width() > 0 && topRect.height() > 0) {
                canvas.drawRect(topRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
            }
            Rect bottomRect = new Rect(viewDrawingRect.left, mDrawRect.bottom, viewDrawingRect.right,
                    viewDrawingRect.bottom);
            if (bottomRect.width() > 0 && bottomRect.height() > 0) {
                canvas.drawRect(bottomRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
            }
            Rect leftRect = new Rect(viewDrawingRect.left, topRect.bottom, mDrawRect.left, bottomRect.top);
            if (leftRect.width() > 0 && leftRect.height() > 0) {
                canvas.drawRect(leftRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
            }
            Rect rightRect = new Rect(mDrawRect.right, topRect.bottom, viewDrawingRect.right, bottomRect.top);
            if (rightRect.width() > 0 && rightRect.height() > 0) {
                canvas.drawRect(rightRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
            }

            path.addRect(new RectF(mDrawRect), Path.Direction.CW);

            mOutlinePaint.setColor(0xFFFF8A00);

        }

        canvas.drawPath(path, mOutlinePaint);

        if (mMode == ModifyMode.Grow) {
            if (mCircle) {
                int width = mResizeDrawableDiagonal.getIntrinsicWidth();
                int height = mResizeDrawableDiagonal.getIntrinsicHeight();

                int d = (int) Math.round(Math.cos(/*45deg*/Math.PI / 4D) * (mDrawRect.width() / 2D));
                int x = mDrawRect.left + (mDrawRect.width() / 2) + d - width / 2;
                int y = mDrawRect.top + (mDrawRect.height() / 2) - d - height / 2;
                mResizeDrawableDiagonal.setBounds(x, y, x + mResizeDrawableDiagonal.getIntrinsicWidth(),
                        y + mResizeDrawableDiagonal.getIntrinsicHeight());
                mResizeDrawableDiagonal.draw(canvas);
            } else {
                int left = mDrawRect.left + 1;
                int right = mDrawRect.right + 1;
                int top = mDrawRect.top + 4;
                int bottom = mDrawRect.bottom + 3;

                int widthWidth = mResizeDrawableWidth.getIntrinsicWidth() / 2;
                int widthHeight = mResizeDrawableWidth.getIntrinsicHeight() / 2;
                int heightHeight = mResizeDrawableHeight.getIntrinsicHeight() / 2;
                int heightWidth = mResizeDrawableHeight.getIntrinsicWidth() / 2;

                int xMiddle = mDrawRect.left + ((mDrawRect.right - mDrawRect.left) / 2);
                int yMiddle = mDrawRect.top + ((mDrawRect.bottom - mDrawRect.top) / 2);

                mResizeDrawableWidth.setBounds(left - widthWidth, yMiddle - widthHeight, left + widthWidth,
                        yMiddle + widthHeight);
                mResizeDrawableWidth.draw(canvas);

                mResizeDrawableWidth.setBounds(right - widthWidth, yMiddle - widthHeight, right + widthWidth,
                        yMiddle + widthHeight);
                mResizeDrawableWidth.draw(canvas);

                mResizeDrawableHeight.setBounds(xMiddle - heightWidth, top - heightHeight,
                        xMiddle + heightWidth, top + heightHeight);
                mResizeDrawableHeight.draw(canvas);

                mResizeDrawableHeight.setBounds(xMiddle - heightWidth, bottom - heightHeight,
                        xMiddle + heightWidth, bottom + heightHeight);
                mResizeDrawableHeight.draw(canvas);
            }
        }
    }
}

---

From source file:com.chartiq.chartiqsample.ui.StickyHeaderDecoration.java

/**
 * {@inheritDoc}//ww w .ja  v  a 2s  .c o m
 */
@Override
public void onDrawOver(Canvas canvas, RecyclerView parent, RecyclerView.State state) {
    final int count = parent.getChildCount();
    long previousHeaderId = -1;

    for (int layoutPos = 0; layoutPos < count; layoutPos++) {
        final View child = parent.getChildAt(layoutPos);
        final int adapterPos = parent.getChildAdapterPosition(child);
        if (child.getVisibility() == View.GONE) {
            continue;
        }

        if (adapterPos != RecyclerView.NO_POSITION && hasHeader(adapterPos)) {
            long headerId = mAdapter.getHeaderId(adapterPos);

            if (headerId != previousHeaderId) {
                previousHeaderId = headerId;
                View header = getHeader(parent, adapterPos).itemView;
                canvas.save();

                final int left = child.getLeft();
                final int top = getHeaderTop(parent, child, header, adapterPos, layoutPos);
                canvas.translate(left, top);

                header.setTranslationX(left);
                header.setTranslationY(top);
                header.draw(canvas);
                canvas.restore();
            }
        }
    }
}

---

From source file:org.caojun.library.cropimage.HighlightView.java

protected void draw(Canvas canvas) {

    if (mHidden) {
        return;/*from   w ww .j  a va  2  s . c om*/
    }

    Path path = new Path();
    if (!hasFocus()) {
        mOutlinePaint.setColor(0xFF000000);
        canvas.drawRect(mDrawRect, mOutlinePaint);
    } else {
        Rect viewDrawingRect = new Rect();
        mView.getDrawingRect(viewDrawingRect);
        if (mCircle) {

            canvas.save();

            float width = mDrawRect.width();
            float height = mDrawRect.height();
            path.addCircle(mDrawRect.left + (width / 2), mDrawRect.top + (height / 2), width / 2,
                    Path.Direction.CW);
            mOutlinePaint.setColor(0xFFEF04D6);

            canvas.clipPath(path, Region.Op.DIFFERENCE);
            canvas.drawRect(viewDrawingRect, hasFocus() ? mFocusPaint : mNoFocusPaint);

            canvas.restore();

        } else {

            Rect topRect = new Rect(viewDrawingRect.left, viewDrawingRect.top, viewDrawingRect.right,
                    mDrawRect.top);
            if (topRect.width() > 0 && topRect.height() > 0) {
                canvas.drawRect(topRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
            }
            Rect bottomRect = new Rect(viewDrawingRect.left, mDrawRect.bottom, viewDrawingRect.right,
                    viewDrawingRect.bottom);
            if (bottomRect.width() > 0 && bottomRect.height() > 0) {
                canvas.drawRect(bottomRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
            }
            Rect leftRect = new Rect(viewDrawingRect.left, topRect.bottom, mDrawRect.left, bottomRect.top);
            if (leftRect.width() > 0 && leftRect.height() > 0) {
                canvas.drawRect(leftRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
            }
            Rect rightRect = new Rect(mDrawRect.right, topRect.bottom, viewDrawingRect.right, bottomRect.top);
            if (rightRect.width() > 0 && rightRect.height() > 0) {
                canvas.drawRect(rightRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
            }

            path.addRect(new RectF(mDrawRect), Path.Direction.CW);

            mOutlinePaint.setColor(0xFFFF8A00);

        }

        canvas.drawPath(path, mOutlinePaint);

        if (mMode == ModifyMode.Grow) {
            if (mCircle) {
                int width = mResizeDrawableDiagonal.getIntrinsicWidth();
                int height = mResizeDrawableDiagonal.getIntrinsicHeight();

                int d = (int) Math.round(Math.cos(/*45deg*/Math.PI / 4D) * (mDrawRect.width() / 2D));
                int x = mDrawRect.left + (mDrawRect.width() / 2) + d - width / 2;
                int y = mDrawRect.top + (mDrawRect.height() / 2) - d - height / 2;
                mResizeDrawableDiagonal.setBounds(x, y, x + mResizeDrawableDiagonal.getIntrinsicWidth(),
                        y + mResizeDrawableDiagonal.getIntrinsicHeight());
                mResizeDrawableDiagonal.draw(canvas);
            } else {
                int left = mDrawRect.left + 1;
                int right = mDrawRect.right + 1;
                int top = mDrawRect.top + 4;
                int bottom = mDrawRect.bottom + 3;

                int widthWidth = mResizeDrawableWidth.getIntrinsicWidth() / 2;
                int widthHeight = mResizeDrawableWidth.getIntrinsicHeight() / 2;
                int heightHeight = mResizeDrawableHeight.getIntrinsicHeight() / 2;
                int heightWidth = mResizeDrawableHeight.getIntrinsicWidth() / 2;

                int xMiddle = mDrawRect.left + ((mDrawRect.right - mDrawRect.left) / 2);
                int yMiddle = mDrawRect.top + ((mDrawRect.bottom - mDrawRect.top) / 2);

                mResizeDrawableWidth.setBounds(left - widthWidth, yMiddle - widthHeight, left + widthWidth,
                        yMiddle + widthHeight);
                mResizeDrawableWidth.draw(canvas);

                mResizeDrawableWidth.setBounds(right - widthWidth, yMiddle - widthHeight, right + widthWidth,
                        yMiddle + widthHeight);
                mResizeDrawableWidth.draw(canvas);

                mResizeDrawableHeight.setBounds(xMiddle - heightWidth, top - heightHeight,
                        xMiddle + heightWidth, top + heightHeight);
                mResizeDrawableHeight.draw(canvas);

                mResizeDrawableHeight.setBounds(xMiddle - heightWidth, bottom - heightHeight,
                        xMiddle + heightWidth, bottom + heightHeight);
                mResizeDrawableHeight.draw(canvas);
            }
        }
    }
}

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From source file:com.evilduck.piano.views.instrument.PianoView.java

@Override
protected void onDraw(Canvas canvas) {
    if (isInEditMode()) {
        canvas.drawColor(Color.GRAY);
        return;//from   w w w. j  av  a 2  s  .c  o  m
    }

    if (measurementChanged) {
        measurementChanged = false;
        keyboard.initializeInstrument(getMeasuredHeight(), getContext());

        float oldInstrumentWidth = instrumentWidth;
        instrumentWidth = keyboard.getWidth();

        float ratio = (float) instrumentWidth / oldInstrumentWidth;
        xOffset = (int) (xOffset * ratio);
    }

    int localXOffset = getOffsetInsideOfBounds();

    canvas.save();
    canvas.scale(scaleX, 1.0f);
    canvas.translate(-localXOffset, 0);

    keyboard.updateBounds(localXOffset, canvasWidth + localXOffset);
    keyboard.draw(canvas);

    if (!notesToDraw.isEmpty()) {
        keyboard.drawOverlays(notesToDraw, canvas);
    }

    canvas.restore();
}

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

/**
 * Draw card value and small suit below value
 * in both top left and bottom right corners
 * bottom right is reversed/upside down/*from w  w  w . j a  va2 s .  c  o m*/
 * @param paint paint styled for card value and small suit
 * @param canvas canvas to draw on
 * @param value card value
 * @param smallSuit small card suit
 * @param suitIdx suit index
 */
private void drawCardValue(final Paint paint, final Canvas canvas, final String value, final Bitmap smallSuit,
        final int suitIdx) {
    if ((suitIdx & 1) == 1) {
        paint.setARGB(255, 255, 0, 0);
    } else {
        paint.setARGB(255, 0, 0, 0);
    }
    canvas.drawText(value, mSuitsSize4th, mSuitsSize, paint);
    canvas.drawBitmap(smallSuit, mSuitsSize4th, mSuitsSize4th + mSuitsSize, mSuitPaint);
    canvas.save();
    canvas.rotate(180, Card.WIDTH / 2, Card.HEIGHT / 2);
    canvas.drawBitmap(smallSuit, mSuitsSize4th, mSuitsSize4th + mSuitsSize, mSuitPaint);
    canvas.drawText(value, mSuitsSize4th, mSuitsSize, paint);
    canvas.restore();
}

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