// Create a default HightlightView if we found no face in the picture.
private void makeDefault() {
HighlightView hv = new HighlightView(mImageView);
int width = mBitmap.getWidth();
int height = mBitmap.getHeight();
Rect imageRect = new Rect(0, 0, width, height);
// make the default size about 4/5 of the width or height
int cropWidth = Math.min(width, height) * 4 / 5;
int cropHeight = cropWidth;
if (mAspectX != 0 && mAspectY != 0) {
if (mAspectX > mAspectY) {
cropHeight = cropWidth * mAspectY / mAspectX;
} else {
cropWidth = cropHeight * mAspectX / mAspectY;
}
}
int x = (width - cropWidth) / 2;
int y = (height - cropHeight) / 2;
RectF cropRect = new RectF(x, y, x + cropWidth, y + cropHeight);
hv.setup(mImageMatrix, imageRect, cropRect, mCircleCrop, mAspectX != 0 && mAspectY != 0);
mImageView.mHighlightViews.clear(); // Thong added for rotate
mImageView.add(hv);
}
@Override
protected void zoomOut() {
super.zoomOut();
for (HighlightView hv : mHighlightViews) {
hv.mMatrix.set(getImageMatrix());
hv.invalidate();
}
}
@Override
protected void zoomTo(float scale, float centerX, float centerY) {
super.zoomTo(scale, centerX, centerY);
for (HighlightView hv : mHighlightViews) {
hv.mMatrix.set(getImageMatrix());
hv.invalidate();
}
}
@Override
protected void postTranslate(float deltaX, float deltaY) {
super.postTranslate(deltaX, deltaY);
for (int i = 0; i < mHighlightViews.size(); i++) {
HighlightView hv = mHighlightViews.get(i);
hv.mMatrix.postTranslate(deltaX, deltaY);
hv.invalidate();
}
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if (mBitmapDisplayed.getBitmap() != null) {
for (HighlightView hv : mHighlightViews) {
hv.mMatrix.set(getImageMatrix());
hv.invalidate();
if (hv.mIsFocused) {
centerBasedOnHighlightView(hv);
}
}
}
}
// For each face, we create a HightlightView for it.
private void handleFace(FaceDetector.Face f) {
PointF midPoint = new PointF();
int r = ((int) (f.eyesDistance() * mScale)) * 2;
f.getMidPoint(midPoint);
midPoint.x *= mScale;
midPoint.y *= mScale;
int midX = (int) midPoint.x;
int midY = (int) midPoint.y;
HighlightView hv = new HighlightView(mImageView);
int width = mBitmap.getWidth();
int height = mBitmap.getHeight();
Rect imageRect = new Rect(0, 0, width, height);
RectF faceRect = new RectF(midX, midY, midX, midY);
faceRect.inset(-r, -r);
if (faceRect.left < 0) {
faceRect.inset(-faceRect.left, -faceRect.left);
}
if (faceRect.top < 0) {
faceRect.inset(-faceRect.top, -faceRect.top);
}
if (faceRect.right > imageRect.right) {
faceRect.inset(faceRect.right - imageRect.right, faceRect.right - imageRect.right);
}
if (faceRect.bottom > imageRect.bottom) {
faceRect.inset(faceRect.bottom - imageRect.bottom, faceRect.bottom - imageRect.bottom);
}
hv.setup(mImageMatrix, imageRect, faceRect, mCircleCrop, mAspectX != 0 && mAspectY != 0);
mImageView.add(hv);
}
// According to the event's position, change the focus to the first
// hitting cropping rectangle.
private void recomputeFocus(MotionEvent event) {
for (int i = 0; i < mHighlightViews.size(); i++) {
HighlightView hv = mHighlightViews.get(i);
hv.setFocus(false);
hv.invalidate();
}
for (int i = 0; i < mHighlightViews.size(); i++) {
HighlightView hv = mHighlightViews.get(i);
int edge = hv.getHit(event.getX(), event.getY());
if (edge != HighlightView.GROW_NONE) {
if (!hv.hasFocus()) {
hv.setFocus(true);
hv.invalidate();
}
break;
}
}
invalidate();
}
private void onSaveClicked() throws Exception {
// TODO this code needs to change to use the decode/crop/encode single
// step api so that we don't require that the whole (possibly large)
// bitmap doesn't have to be read into memory
if (mSaving) return;
if (mCrop == null) {
return;
}
mSaving = true;
Rect r = mCrop.getCropRect();
int width = r.width();
int height = r.height();
// If we are circle cropping, we want alpha channel, which is the
// third param here.
Bitmap croppedImage;
try {
croppedImage =
Bitmap.createBitmap(
width, height, mCircleCrop ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565);
} catch (Exception e) {
throw e;
}
if (croppedImage == null) {
return;
}
{
Canvas canvas = new Canvas(croppedImage);
Rect dstRect = new Rect(0, 0, width, height);
canvas.drawBitmap(mBitmap, r, dstRect, null);
}
if (mCircleCrop) {
// OK, so what's all this about?
// Bitmaps are inherently rectangular but we want to return
// something that's basically a circle. So we fill in the
// area around the circle with alpha. Note the all important
// PortDuff.Mode.CLEAR.
Canvas c = new Canvas(croppedImage);
Path p = new Path();
p.addCircle(width / 2F, height / 2F, width / 2F, Path.Direction.CW);
c.clipPath(p, Region.Op.DIFFERENCE);
c.drawColor(0x00000000, PorterDuff.Mode.CLEAR);
}
/* If the output is required to a specific size then scale or fill */
if (mOutputX != 0 && mOutputY != 0) {
if (mScale) {
/* Scale the image to the required dimensions */
Bitmap old = croppedImage;
croppedImage = Util.transform(new Matrix(), croppedImage, mOutputX, mOutputY, mScaleUp);
if (old != croppedImage) {
old.recycle();
}
} else {
/* Don't scale the image crop it to the size requested.
* Create an new image with the cropped image in the center and
* the extra space filled.
*/
// Don't scale the image but instead fill it so it's the
// required dimension
Bitmap b = Bitmap.createBitmap(mOutputX, mOutputY, Bitmap.Config.RGB_565);
Canvas canvas = new Canvas(b);
Rect srcRect = mCrop.getCropRect();
Rect dstRect = new Rect(0, 0, mOutputX, mOutputY);
int dx = (srcRect.width() - dstRect.width()) / 2;
int dy = (srcRect.height() - dstRect.height()) / 2;
/* If the srcRect is too big, use the center part of it. */
srcRect.inset(Math.max(0, dx), Math.max(0, dy));
/* If the dstRect is too big, use the center part of it. */
dstRect.inset(Math.max(0, -dx), Math.max(0, -dy));
/* Draw the cropped bitmap in the center */
canvas.drawBitmap(mBitmap, srcRect, dstRect, null);
/* Set the cropped bitmap as the new bitmap */
croppedImage.recycle();
croppedImage = b;
}
}
// Return the cropped image directly or save it to the specified URI.
Bundle myExtras = getIntent().getExtras();
if (myExtras != null
&& (myExtras.getParcelable("data") != null || myExtras.getBoolean(RETURN_DATA))) {
Bundle extras = new Bundle();
extras.putParcelable(RETURN_DATA_AS_BITMAP, croppedImage);
setResult(RESULT_OK, (new Intent()).setAction(ACTION_INLINE_DATA).putExtras(extras));
finish();
} else {
final Bitmap b = croppedImage;
Util.startBackgroundJob(
this,
null,
getString(R.string.saving_image),
new Runnable() {
public void run() {
saveOutput(b);
}
},
mHandler);
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
CropImage cropImage = (CropImage) mContext;
if (cropImage.mSaving) {
return false;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
if (cropImage.mWaitingToPick) {
recomputeFocus(event);
} else {
for (int i = 0; i < mHighlightViews.size(); i++) {
HighlightView hv = mHighlightViews.get(i);
int edge = hv.getHit(event.getX(), event.getY());
if (edge != HighlightView.GROW_NONE) {
mMotionEdge = edge;
mMotionHighlightView = hv;
mLastX = event.getX();
mLastY = event.getY();
mMotionHighlightView.setMode(
(edge == HighlightView.MOVE)
? HighlightView.ModifyMode.Move
: HighlightView.ModifyMode.Grow);
break;
}
}
}
break;
case MotionEvent.ACTION_UP:
if (cropImage.mWaitingToPick) {
for (int i = 0; i < mHighlightViews.size(); i++) {
HighlightView hv = mHighlightViews.get(i);
if (hv.hasFocus()) {
cropImage.mCrop = hv;
for (int j = 0; j < mHighlightViews.size(); j++) {
if (j == i) {
continue;
}
mHighlightViews.get(j).setHidden(true);
}
centerBasedOnHighlightView(hv);
((CropImage) mContext).mWaitingToPick = false;
return true;
}
}
} else if (mMotionHighlightView != null) {
centerBasedOnHighlightView(mMotionHighlightView);
mMotionHighlightView.setMode(HighlightView.ModifyMode.None);
}
mMotionHighlightView = null;
break;
case MotionEvent.ACTION_MOVE:
if (cropImage.mWaitingToPick) {
recomputeFocus(event);
} else if (mMotionHighlightView != null) {
mMotionHighlightView.handleMotion(
mMotionEdge, event.getX() - mLastX, event.getY() - mLastY);
mLastX = event.getX();
mLastY = event.getY();
if (true) {
// This section of code is optional. It has some user
// benefit in that moving the crop rectangle against
// the edge of the screen causes scrolling but it means
// that the crop rectangle is no longer fixed under
// the user's finger.
ensureVisible(mMotionHighlightView);
}
}
break;
}
switch (event.getAction()) {
case MotionEvent.ACTION_UP:
center(true, true);
break;
case MotionEvent.ACTION_MOVE:
// if we're not zoomed then there's no point in even allowing
// the user to move the image around. This call to center puts
// it back to the normalized location (with false meaning don't
// animate).
if (getScale() == 1F) {
center(true, true);
}
break;
}
return true;
}
