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:com.udacity.adcs.app.goodintents.ui.view.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;/*from ww  w . j a v  a 2  s .c  o  m*/
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            // noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

---

From source file:app.geochat.ui.widgets.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;//from  ww w.  j a va2s.c om
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

---

From source file:com.aprz.easy_iosched.ui.widget.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;/*from  www .  ja v a 2  s  . c o m*/
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache.
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache.
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

---

From source file:com.yanzhenjie.album.widget.loading.LevelLoadingRenderer.java

@Override
protected void draw(Canvas canvas) {
    int saveCount = canvas.save();

    mTempBounds.set(mBounds);//ww w  .  ja va2 s .  co  m
    mTempBounds.inset(mStrokeInset, mStrokeInset);
    canvas.rotate(mGroupRotation, mTempBounds.centerX(), mTempBounds.centerY());

    for (int i = 0; i < 3; i++) {
        if (mLevelSwipeDegrees[i] != 0) {
            mPaint.setColor(mLevelColors[i]);
            canvas.drawArc(mTempBounds, mEndDegrees, mLevelSwipeDegrees[i], false, mPaint);
        }
    }

    canvas.restoreToCount(saveCount);
}

---

From source file:technology.mainthread.apps.moment.ui.view.BezelImageView.java

@Override
protected void onDraw(@NonNull Canvas canvas) {
    if (mBounds == null) {
        return;/* w ww .  j a  v  a2s. c om*/
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter(mDesaturateOnPress && isPressed() ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

---

From source file:br.com.leoleal.swipetorefresh.SwipeProgressBar.java

/**
 * Draws a circle centered in the view.// ww w  .  j  a v a 2  s.co m
 *
 * @param canvas the canvas to draw on
 * @param cx the center x coordinate
 * @param cy the center y coordinate
 * @param color the color to draw
 * @param pct the percentage of the view that the circle should cover
 */
private void drawCircle(Canvas canvas, float cx, float cy, int color, float pct) {
    mPaint.setColor(color);
    canvas.save();
    canvas.translate(cx, cy);
    float radiusScale = INTERPOLATOR.getInterpolation(pct);
    canvas.scale(radiusScale, radiusScale);
    canvas.drawCircle(0, 0, cx, mPaint);
    canvas.restore();
}

---

From source file:ng.kingsley.android.widget.BezelImageView.java

@Override
protected void onDraw(@NonNull Canvas canvas) {
    if (mBounds == null) {
        return;/*from   w ww .java2s.  c  om*/
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

---

From source file:chrisrenke.drawerarrowdrawable.DrawerArrowDrawable.java

@Override
public void draw(Canvas canvas) {
    if (flip) {//from  w  w w. j av a  2 s . c  o  m
        canvas.save();
        canvas.scale(1f, -1f, getIntrinsicWidth() / 2, getIntrinsicHeight() / 2);
    }

    topLine.draw(canvas);
    middleLine.draw(canvas);
    bottomLine.draw(canvas);

    if (flip)
        canvas.restore();
}

---

From source file:com.conferenceengineer.android.iosched.ui.widget.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;//  ww  w  .  j a  v  a2  s.  c o  m
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            if (!isInEditMode()) {
                mCacheBitmap.recycle();
            }
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

---

From source file:com.p2p.ui.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;//from  w  ww . j a v a  2s  .  c  o m
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }
    if (isInEditMode()) {
        return;
    }
    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

---

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