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:ru.mahortov.listviewcustom.ListView.PinnedSectionListView.java

@Override
protected void dispatchDraw(@NonNull Canvas canvas) {
    super.dispatchDraw(canvas);

    if (mPinnedSection != null) {

        // prepare variables
        int pLeft = getListPaddingLeft();
        int pTop = getListPaddingTop();
        View view = mPinnedSection.view;

        // draw child
        canvas.save();//from w  ww . j a va  2  s .c o  m

        int clipHeight = view.getHeight()
                + (mShadowDrawable == null ? 0 : Math.min(mShadowHeight, mSectionsDistanceY));
        canvas.clipRect(pLeft, pTop, pLeft + view.getWidth(), pTop + clipHeight);

        canvas.translate(pLeft, pTop + mTranslateY);
        drawChild(canvas, mPinnedSection.view, getDrawingTime());

        if (mShadowDrawable != null && mSectionsDistanceY > 0) {
            mShadowDrawable.setBounds(mPinnedSection.view.getLeft(), mPinnedSection.view.getBottom(),
                    mPinnedSection.view.getRight(), mPinnedSection.view.getBottom() + mShadowHeight);
            mShadowDrawable.draw(canvas);
        }

        canvas.restore();
    }
}

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From source file:com.yanzhenjie.recyclerview.swipe.widget.StickyNestedScrollView.java

@Override
protected void dispatchDraw(Canvas canvas) {
    super.dispatchDraw(canvas);
    if (currentlyStickingView != null) {
        canvas.save();/*  ww w .  j a  v  a  2 s.com*/
        canvas.translate(getPaddingLeft() + stickyViewLeftOffset,
                getScrollY() + stickyViewTopOffset + (clippingToPadding ? getPaddingTop() : 0));
        canvas.clipRect(0, (clippingToPadding ? -stickyViewTopOffset : 0), getWidth() - stickyViewLeftOffset,
                currentlyStickingView.getHeight() + mShadowHeight + 1);
        if (mShadowDrawable != null) {
            int left = 0;
            int top = currentlyStickingView.getHeight();
            int right = currentlyStickingView.getWidth();
            int bottom = currentlyStickingView.getHeight() + mShadowHeight;
            mShadowDrawable.setBounds(left, top, right, bottom);
            mShadowDrawable.draw(canvas);
        }
        canvas.clipRect(0, (clippingToPadding ? -stickyViewTopOffset : 0), getWidth(),
                currentlyStickingView.getHeight());
        if (getStringTagForView(currentlyStickingView).contains(FLAG_HASTRANSPARENCY)) {
            showView(currentlyStickingView);
            currentlyStickingView.draw(canvas);
            hideView(currentlyStickingView);
        } else {
            currentlyStickingView.draw(canvas);
        }
        canvas.restore();
    }
}

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From source file:com.pax.view.keyboard.CustomKeyboardView.java

@Override
public void onDraw(Canvas canvas) {
    List<Keyboard.Key> keys = getKeyboard().getKeys();
    for (Keyboard.Key key : keys) {
        canvas.save();/*from w  w w  . j a  v a 2 s  .c  o m*/

        int offsetY = 0;
        if (key.y == 0) {
            offsetY = 1;
        }
        int initDrawY = key.y + offsetY;
        Rect rect = new Rect(key.x, initDrawY, key.x + key.width, key.y + key.height);
        canvas.clipRect(rect);

        Drawable drawable = null;
        if (null != key.codes && key.codes.length != 0) {
            int primaryCode = key.codes[0];

            if (primaryCode < 0) {
                drawable = mOpKeyBgDrawable;
            } else {
                drawable = mKeyBgDrawable;
            }
        }

        if (null != drawable && null == key.icon) {
            int[] state = key.getCurrentDrawableState();
            drawable.setState(state);
            drawable.setBounds(rect);
            drawable.draw(canvas);
        }

        paint.setAntiAlias(true);
        paint.setTextAlign(Paint.Align.CENTER);
        paint.setTextSize(50);
        paint.setColor(Color.BLACK);

        if (key.icon != null) {
            int[] state = key.getCurrentDrawableState();
            key.icon.setState(state);
            key.icon.setBounds(rect);
            key.icon.draw(canvas);
        }

        if (key.label != null) {
            canvas.drawText(key.label.toString(), key.x + (key.width / 2),
                    initDrawY + (key.height + paint.getTextSize() - paint.descent()) / 2, paint);
        }
        canvas.restore();
    }
}

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From source file:am.widget.indicatortabstrip.IndicatorTabStrip.java

/**
 * Divider/*from  w  w  w.j a  va  2s  . co  m*/
 *
 * @param canvas 
 */
protected void drawDivider(Canvas canvas) {
    if (mDivider == null || mDivider.getIntrinsicHeight() <= 0)
        return;
    final int dividerWidth = mDivider.getIntrinsicWidth() > 0 ? mDivider.getIntrinsicWidth()
            : getWidth() - ViewCompat.getPaddingStart(this) - ViewCompat.getPaddingEnd(this);
    final int dividerHeight = mDivider.getIntrinsicHeight();
    mDivider.setBounds(0, 0, dividerWidth, dividerHeight);
    final float moveX = ViewCompat.getPaddingStart(this);
    final float moveY = getItemHeight() + getPaddingTop();
    canvas.save();
    canvas.translate(moveX, moveY);
    mDivider.draw(canvas);
    canvas.restore();
}

---

From source file:am.widget.indicatortabstrip.IndicatorTabStrip.java

/**
 * //from ww w  . j av  a2  s .  c  om
 *
 * @param canvas     
 * @param position   ???
 * @param itemWidth  ?
 * @param itemHeight ?
 */
protected void drawItemBackground(Canvas canvas, int position, int itemWidth, int itemHeight) {
    if (!hasItemBackgrounds())
        return;
    Drawable tag = getItemBackground(position);
    if (position == getItemCount() - 1) {
        int restWidth = getLastItemWidth();
        tag.setBounds(0, 0, restWidth, itemHeight);
    } else {
        tag.setBounds(0, 0, itemWidth, itemHeight);
    }
    final float moveX = ViewCompat.getPaddingStart(this) + (itemWidth + getIntervalWidth()) * position;
    final float moveY = getPaddingTop();
    canvas.save();
    canvas.translate(moveX, moveY);
    tag.draw(canvas);
    canvas.restore();
}

---

From source file:am.widget.indicatortabstrip.IndicatorTabStrip.java

/**
 * //from  w w  w .  j  a v  a 2s .  co  m
 *
 * @param canvas     
 * @param position   ???
 * @param itemWidth  ?
 * @param itemHeight ?
 */
protected void drawInterval(Canvas canvas, int position, int itemWidth, int itemHeight) {
    if (mInterval == null || mInterval.getIntrinsicWidth() <= 0 || position == getItemCount() - 1)
        return;
    final int intervalHeight = mInterval.getIntrinsicHeight() <= 0 ? itemHeight
            : mInterval.getIntrinsicHeight();
    mInterval.setBounds(0, 0, getIntervalWidth(), intervalHeight);
    final int moveX = ViewCompat.getPaddingStart(this) + itemWidth * position;
    final float moveY = getPaddingTop() + (itemHeight - intervalHeight) * 0.5f;
    canvas.save();
    canvas.translate(moveX, moveY);
    mInterval.draw(canvas);
    canvas.restore();
}

---

From source file:com.achep.acdisplay.ui.widgets.CircleView.java

@Override
protected void onDraw(Canvas canvas) {
    final float ratio = calculateRatio();

    // Draw all corners
    drawCornerIcon(canvas, mDrawableLeftTopCorner, 0, 0 /* left top */);
    drawCornerIcon(canvas, mDrawableRightTopCorner, 1, 0 /* right top */);
    drawCornerIcon(canvas, mDrawableLeftBottomCorner, 0, 1 /* left bottom */);
    drawCornerIcon(canvas, mDrawableRightBottomCorner, 1, 1 /* right bottom */);

    // Darkening background
    int alpha = (int) (mDarkening * 255);
    alpha += (int) ((255 - alpha) * ratio * 0.7f); // Change alpha dynamically
    canvas.drawColor(/*  ww w.  j a va  2  s .  co m*/
            Color.argb(alpha, Color.red(mOuterColor), Color.green(mOuterColor), Color.blue(mOuterColor)));

    // Draw unlock circle
    mPaint.setColor(mInnerColor);
    mPaint.setAlpha((int) (255 * Math.pow(ratio, 1f / 3f)));
    canvas.drawCircle(mPoint[0], mPoint[1], mRadiusDrawn, mPaint);

    if (ratio >= 0.5f) {
        // Draw unlock icon at the center of circle
        float scale = 0.5f + 0.5f * ratio;
        canvas.save();
        canvas.translate(mPoint[0] - mDrawable.getMinimumWidth() / 2 * scale,
                mPoint[1] - mDrawable.getMinimumHeight() / 2 * scale);
        canvas.scale(scale, scale);
        mDrawable.draw(canvas);
        canvas.restore();
    }
}

---

From source file:com.am.pagergradienttab.view.PagerGradientTabStrip.java

/**
 * Tab/*from www  .j  a v a 2  s  . c  o m*/
 * 
 * @param canvas
 */
private void drawTabBG(Canvas canvas) {
    if (showTabColor) {
        mTextPaint.setColor(tabColorNormal);
        canvas.save();
        canvas.translate(getPaddingLeft(), 0);
        if (tabs.size() > 0)
            for (int i = 0; i < tabs.size(); i++) {
                if (i == nextPager) {
                    mTextPaint.setColor(getColor(tabColorNormal, tabColorSelected, textSizeOffset));
                } else if (i == currectPager) {
                    mTextPaint.setColor(getColor(tabColorNormal, tabColorSelected, 1 - textSizeOffset));
                } else {
                    mTextPaint.setColor(tabColorNormal);
                }
                canvas.drawRect(0, getPaddingTop(), itemWidth, getHeight() - getPaddingBottom(), mTextPaint);
                canvas.translate(itemWidth + intervalWidth, 0);
            }
        else {
            mTextPaint.setColor(tabColorSelected);
            canvas.drawRect(0, getPaddingTop(), itemWidth + intervalWidth + getPaddingLeft(),
                    getHeight() - getPaddingBottom(), mTextPaint);
        }
        canvas.restore();
    }
}

---

From source file:com.crs4.roodin.moduletester.CustomView.java

/**
 * @return/*from www .j  a va  2 s.co  m*/
 */
private Picture drawBarreds() {
    Picture pictureContent = new Picture();
    Canvas canvasContent = pictureContent.beginRecording(getWidth(), getHeight());
    Paint paintContent = new Paint(Paint.ANTI_ALIAS_FLAG);
    canvasContent.save();

    paintContent.setColor(Color.BLUE);
    paintContent.setStyle(Style.STROKE);
    paintContent.setStrokeWidth(2);
    paintContent.setAlpha(50);

    try {
        cellDimension = block.getCellDimension();
        JSONArray barred = block.getBarred();

        int rows = block.getShape().getInt(0);
        int cols = block.getShape().getInt(1);

        // this code draws all the shape:
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {

                canvasContent.drawRect(cellDimension * j, cellDimension * i, cellDimension * j + cellDimension,
                        cellDimension * i + cellDimension, paintContent);
            }
        }
        paintContent.setColor(Color.RED);
        paintContent.setStyle(Style.FILL);
        paintContent.setAlpha(50);

        for (int i = 0; i < barred.length(); i++) {
            JSONArray pos = barred.getJSONArray(i);
            canvasContent.drawRect(cellDimension * pos.getInt(1), cellDimension * pos.getInt(0),
                    cellDimension * pos.getInt(1) + cellDimension,
                    cellDimension * pos.getInt(0) + cellDimension, paintContent);
        }

        this.paintBoxList(canvasContent, paintContent);

    } catch (JSONException e) {
        e.printStackTrace();
        Log.e("Exception in DrawComponents.drawBarreds", "" + e.getMessage());
    }

    canvasContent.restore();
    pictureContent.endRecording();
    return pictureContent;

}

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From source file:com.android.launcher3.folder.FolderIcon.java

private void drawPreviewItem(Canvas canvas, PreviewItemDrawingParams params) {
    canvas.save();// w  w w  . java 2  s .  com
    canvas.translate(params.transX, params.transY);
    canvas.scale(params.scale, params.scale);
    Drawable d = params.drawable;

    if (d != null) {
        mOldBounds.set(d.getBounds());
        d.setBounds(0, 0, mIntrinsicIconSize, mIntrinsicIconSize);
        if (d instanceof FastBitmapDrawable) {
            FastBitmapDrawable fd = (FastBitmapDrawable) d;
            float oldBrightness = fd.getBrightness();
            fd.setBrightness(params.overlayAlpha);
            d.draw(canvas);
            fd.setBrightness(oldBrightness);
        } else {
            d.setColorFilter(Color.argb((int) (params.overlayAlpha * 255), 255, 255, 255),
                    PorterDuff.Mode.SRC_ATOP);
            d.draw(canvas);
            d.clearColorFilter();
        }
        d.setBounds(mOldBounds);
    }
    canvas.restore();
}

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