Example usage for android.graphics Canvas save

List of usage examples for android.graphics Canvas save

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  6. save

Introduction

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

Prototype

public int save()

Source Link

Document

Saves the current matrix and clip onto a private stack.

Usage

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

@Override
public void draw(Canvas canvas) {
    if (mInvalidateShader) {
        mPaint.setShader(createGradientShader());
        mInvalidateShader = false;// w  ww .  ja v a 2s .  c o 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.example.gatsu.theevent.HighlightView.java

protected void draw(Canvas canvas) {

    if (mHidden) {
        return;//  w  w w.jav a  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.ssn.currency.convertor.WheelView.java

/**
 * Draws items// w  ww .j a  va  2s  . com
 * @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:org.caojun.library.cropimage.HighlightView.java

protected void draw(Canvas canvas) {

    if (mHidden) {
        return;/*from w ww. ja  v  a 2 s. co m*/
    }

    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);
            }
        }
    }
}

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

@Override
protected void onDraw(Canvas canvas) {
    if (layout) {
        if (drawable != null && !isRecycled()) {
            canvas.save();

            float adjustedScale = scale * scaleAdjust;

            canvas.translate(x, y);/*from   w  w  w  .jav  a2s  .  c  o m*/

            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();
        }
    }
}

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

/**
 * Tab//w w  w  .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.github.jokar.rxupload.widget.ProgressDownloadView.java

/**
 * MARK: Overrides//from  ww  w . j a  va  2s.  c om
 */

@Override
protected void onDraw(Canvas canvas) {
    if (mPathWhite != null && mPathBlack != null) {

        float textX = Math.max(getPaddingLeft() - (int) (mBubbleWidth / 4.0f),
                mProgress * mWidth / 100 - (int) (mBubbleWidth / 4.0f));
        float textY = mHeight / 2 - mBubbleHeight / 2 + calculateDeltaY();

        switch (mState) {
        case STATE_WORKING:
            // Save and restore prevent the rest of the canvas to not be rotated
            canvas.save();
            float speed = (getProgress() - mTarget) / 20;
            mBubbleAngle += speed * 10;
            if (mBubbleAngle > 20) {
                mBubbleAngle = 20;
            }
            if (mBubbleAngle < -20) {
                mBubbleAngle = -20;
            }
            if (Math.abs(speed) < 1) {
                mSpeedAngle -= mBubbleAngle / 20;
                mSpeedAngle *= .9f;
            }
            mBubbleAngle += mSpeedAngle;

            canvas.rotate(mBubbleAngle, bubbleAnchorX, bubbleAnchorY);
            canvas.drawPath(mPathBubble, mPaintBubble);
            canvas.drawText(String.valueOf((int) mProgress) + " %", textX, textY, mPaintText);
            canvas.restore();
            break;
        case STATE_FAILED:
            canvas.save();
            canvas.rotate(mFailAngle, bubbleAnchorX, bubbleAnchorY);
            canvas.drawPath(mPathBubble, mPaintBubble);
            canvas.rotate(mFailAngle, bubbleAnchorX, textY - mBubbleHeight / 7);
            //                    mPaintText.setColor(getResources().getColor(R.color.red_wine));
            textX = Math.max(getPaddingLeft() - (int) (mBubbleWidth / 3.2f),
                    mProgress * mWidth / 100 - (int) (mBubbleWidth / 3.2f));
            canvas.drawText(getResources().getString(R.string.failed), textX, textY, mPaintText);
            canvas.restore();
            break;
        case STATE_SUCCESS:
            canvas.save();
            //                    mPaintText.setColor(getResources().getColor(R.color.green_grass));
            textX = Math.max(getPaddingLeft() - (int) (mBubbleWidth / 3.2f),
                    mProgress * mWidth / 100 - (int) (mBubbleWidth / 3.2f));
            Matrix flipMatrix = new Matrix();
            flipMatrix.setScale(mFlipFactor, 1, bubbleAnchorX, bubbleAnchorY);
            canvas.concat(flipMatrix);
            canvas.drawPath(mPathBubble, mPaintBubble);
            canvas.concat(flipMatrix);
            canvas.drawText(getResources().getString(R.string.done), textX, textY, mPaintText);
            canvas.restore();
            break;
        }

        canvas.drawPath(mPathBlack, mPaintBlack);
        canvas.drawPath(mPathWhite, mPaintWhite);
    }
}

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

@Override
public void draw(Canvas canvas) {
    super.draw(canvas);
    boolean needsInvalidate = false;

    final int overScrollMode = ViewCompat.getOverScrollMode(this);
    if (overScrollMode == ViewCompat.OVER_SCROLL_ALWAYS
            || (overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS)) {
        if (!leftEdgeEffect.isFinished()) {
            final int restoreCount = canvas.save();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();
            final int width = getWidth();

            canvas.rotate(270);//from   ww w.  j  a  v  a  2 s  .c  o m
            canvas.translate(-height + getPaddingTop(), 0);
            leftEdgeEffect.setSize(height, width);
            needsInvalidate |= leftEdgeEffect.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
        if (!rightEdgeEffect.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();

            canvas.rotate(90);
            canvas.translate(-getPaddingTop(), -width);
            rightEdgeEffect.setSize(height, width);
            needsInvalidate |= rightEdgeEffect.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        leftEdgeEffect.finish();
        rightEdgeEffect.finish();
    }

    if (needsInvalidate) {
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

From source file:com.dat.complexrecyclerviewdemo.recyclerviewinsidecardviewdemo.StickyHeaderDecoration.java

/**
 * {@inheritDoc}/* w  w  w  .j  a  va 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 (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 - 4);
                header.setTranslationX(left);
                header.setTranslationY(top);
                header.draw(canvas);
                canvas.restore();
            }
        }
    }
}

From source file:ca.barrenechea.widget.recyclerview.decoration.StickyHeaderDecoration.java

/**
 * {@inheritDoc}//from   w  w  w .  ja va  2  s. co 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 (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();
            }
        }
    }
}