Example usage for android.graphics Canvas 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:ticwear.design.widget.CoordinatorLayout.java

@Override
public void draw(Canvas canvas) {
    super.draw(canvas);
    if (mEdgeGlowTop != null) {
        if (!mEdgeGlowTop.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth();

            int edgeY = Math.min(0, getScrollY());
            canvas.translate(0, edgeY);//  ww w .  j  a v  a  2 s.  c o m
            mEdgeGlowTop.setSize(width, getHeight());
            if (mEdgeGlowTop.draw(canvas)) {
                invalidate(0, 0, getWidth(), mEdgeGlowTop.getMaxHeight() + getPaddingTop());
            }
            canvas.restoreToCount(restoreCount);
        }
        if (!mEdgeGlowBottom.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth();
            final int height = getHeight();

            int edgeX = -width;
            int edgeY = Math.max(height, getScrollY() + height);
            canvas.translate(edgeX, edgeY);
            canvas.rotate(180, width, 0);
            mEdgeGlowBottom.setSize(width, height);
            if (mEdgeGlowBottom.draw(canvas)) {
                invalidate(0, getHeight() - getPaddingBottom() - mEdgeGlowBottom.getMaxHeight(), getWidth(),
                        getHeight());
            }
            canvas.restoreToCount(restoreCount);
        }
    }
}

---

From source file:com.isapp.android.circularviewpager.CircularViewPager.java

@Override
public void draw(Canvas canvas) {
    super.draw(canvas);
    boolean needsInvalidate = false;
    final int overScrollMode = ViewCompat.getOverScrollMode(this);
    if ((mAdapter != null && mAdapter.getCount() == 1) || overScrollMode == ViewCompat.OVER_SCROLL_ALWAYS
            || (overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS && mAdapter != null
                    && mAdapter.getCount() > 1)) {
        if (!mLeftEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();
            final int width = getWidth();
            canvas.rotate(270);/*w  w  w  . java  2 s .c om*/
            canvas.translate(-height + getPaddingTop(), mFirstOffset * width);
            mLeftEdge.setSize(height, width);
            needsInvalidate |= mLeftEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
        if (!mRightEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();
            canvas.rotate(90);
            canvas.translate(-getPaddingTop(), -(mLastOffset + 1) * width);
            mRightEdge.setSize(height, width);
            needsInvalidate |= mRightEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        mLeftEdge.finish();
        mRightEdge.finish();
    }
    if (needsInvalidate) {
        // Keep animating
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

---

From source file:org.ohmage.widget.VerticalViewPager.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 && mAdapter != null
                    && mAdapter.getCount() > 1)) {
        if (!mTopEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();
            final int height = getHeight();

            canvas.translate(0, (float) mFirstOffset * height);
            mTopEdge.setSize(width, height);
            needsInvalidate |= mTopEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }/*from  w ww .j a  v a  2 s .  co m*/
        if (!mBottomEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();
            final int height = getHeight();

            canvas.rotate(180);
            canvas.translate(-width, (float) -(mLastOffset + 1) * height);
            mBottomEdge.setSize(width, height);
            needsInvalidate |= mBottomEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        mTopEdge.finish();
        mBottomEdge.finish();
    }

    if (needsInvalidate) {
        // Keep animating
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

---

From source file:VerticalViewPager.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 && mAdapter != null
                    && mAdapter.getCount() > 1)) {
        if (!mTopEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int height = getHeight();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();

            canvas.translate(-getPaddingLeft(), mFirstOffset * height);
            mTopEdge.setSize(width, height);
            needsInvalidate |= mTopEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }/*from  w  w  w .j av a 2  s. co m*/
        if (!mBottomEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();
            final int height = getHeight();

            canvas.rotate(180);
            canvas.translate(-width + getPaddingLeft(), -(mLastOffset + 1) * height);
            mBottomEdge.setSize(width, height);
            needsInvalidate |= mBottomEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        mTopEdge.finish();
        mBottomEdge.finish();
    }

    if (needsInvalidate) {
        // Keep animating
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

---

From source file:com.support.chikeong.centerviewpager.lib.CenterViewPager.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 && mAdapter != null
                    && mAdapter.getCount() > 1)) {
        if (!mLeftEdge.isFinished()) {

            final int restoreCount = canvas.save();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();
            final int width = getWidth();

            canvas.rotate(270);//  w  w  w .  j a  va  2  s  . c o  m
            canvas.translate(-height + getPaddingTop(),
                    mFirstOffset * width - (getWidth() - getWidth() * mAdapter.getPageWidth(mCurItem)) / 2);
            mLeftEdge.setSize(height, width);

            needsInvalidate |= mLeftEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
        if (!mRightEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();

            canvas.rotate(90);
            canvas.translate(-getPaddingTop(), -(mLastOffset + 1) * width
                    - (getWidth() - getWidth() * mAdapter.getPageWidth(mCurItem)) / 2);
            mRightEdge.setSize(height, width);
            needsInvalidate |= mRightEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        mLeftEdge.finish();
        mRightEdge.finish();
    }

    if (needsInvalidate) {
        // Keep animating
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

---

From source file:com.suning.boxcontroller.control.ExViewPager.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 && mAdapter != null
                    && mAdapter.getCount() > 1)) {
        if (!mLeftEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();
            final int width = getWidth();

            canvas.rotate(ANGLE_ONE);/*from www  . j a va2s . c  om*/
            canvas.translate(-height + getPaddingTop(), mFirstOffset * width);
            mLeftEdge.setSize(height, width);
            needsInvalidate |= mLeftEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
        if (!mRightEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();

            canvas.rotate(ANGLE_TWO);
            canvas.translate(-getPaddingTop(), -(mLastOffset + 1) * width);
            mRightEdge.setSize(height, width);
            needsInvalidate |= mRightEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        mLeftEdge.finish();
        mRightEdge.finish();
    }

    if (needsInvalidate) {
        // Keep animating
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

---

From source file:com.my.infiniteviewpager.view.InfiniteViewPager.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 && mAdapter != null)) {
        if (!mLeftEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();
            final int width = getWidth();

            canvas.rotate(270);/*w  w  w .j  a  va 2s.c o m*/
            canvas.translate(-height + getPaddingTop(), mFirstOffset * width);
            mLeftEdge.setSize(height, width);
            needsInvalidate |= mLeftEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
        if (!mRightEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth();
            final int height = getHeight() - getPaddingTop() - getPaddingBottom();

            canvas.rotate(90);
            canvas.translate(-getPaddingTop(), -(mLastOffset + 1) * width);
            mRightEdge.setSize(height, width);
            needsInvalidate |= mRightEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        mLeftEdge.finish();
        mRightEdge.finish();
    }

    if (needsInvalidate) {
        // Keep animating
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

---

From source file:com.bloomimpact.bancus.ui.views.VerticalViewPager.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 && mAdapter != null
                    && mAdapter.getCount() > 1)) {
        if (!mTopEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();
            final int height = getHeight();

            canvas.rotate(270);/*  w  w w. j a v  a2s. c om*/
            canvas.translate(mFirstOffset * height, -width + getPaddingLeft());
            mTopEdge.setSize(width, height);
            needsInvalidate |= mTopEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
        if (!mBottomEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int height = getHeight();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();

            canvas.rotate(90);
            canvas.translate(-(mLastOffset + 1) * height, -getPaddingLeft());
            mBottomEdge.setSize(width, height);
            needsInvalidate |= mBottomEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        mTopEdge.finish();
        mBottomEdge.finish();
    }

    if (needsInvalidate) {
        // Keep animating
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

---

From source file:eu.kanade.tachiyomi.ui.reader.viewer.pager.vertical.VerticalViewPagerImpl.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 && mAdapter != null
                    && mAdapter.getCount() > 1)) {
        if (!mTopEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int height = getHeight();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();

            canvas.translate(getPaddingLeft(), mFirstOffset * height);
            mTopEdge.setSize(width, height);
            needsInvalidate |= mTopEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }/* w  w  w  . ja v a2  s  . co  m*/
        if (!mBottomEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int height = getHeight();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();

            canvas.rotate(180);
            canvas.translate(-width - getPaddingLeft(), -(mLastOffset + 1) * height);
            mBottomEdge.setSize(width, height);
            needsInvalidate |= mBottomEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        mTopEdge.finish();
        mBottomEdge.finish();
    }

    if (needsInvalidate) {
        // Keep animating
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

---

From source file:com.dishes.views.stageredggridview.StaggeredGridView.java

@Override
public void draw(Canvas canvas) {
    super.draw(canvas);

    if (mTopEdge != null) {
        boolean needsInvalidate = false;
        if (!mTopEdge.isFinished()) {
            mTopEdge.draw(canvas);/*from w w w  . j  a  va2 s  .  c  o  m*/
            needsInvalidate = true;
        }
        if (!mBottomEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth();
            canvas.translate(-width, getHeight());
            canvas.rotate(180, width, 0);
            mBottomEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
            needsInvalidate = true;
        }

        if (needsInvalidate) {
            invalidate();
        }
    }
    if (mFastScroller != null) {
        final int scrollY = this.getScrollY();
        if (scrollY != 0) {
            // Pin to the top/bottom during overscroll
            int restoreCount = canvas.save();
            canvas.translate(0, (float) scrollY);
            mFastScroller.draw(canvas);
            canvas.restoreToCount(restoreCount);
        } else {
            mFastScroller.draw(canvas);
        }
    }
    // drawSelector(canvas);
}

---

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