diff options
Diffstat (limited to 'src/com/android/gallery3d/ui/CropView.java')
| -rw-r--r-- | src/com/android/gallery3d/ui/CropView.java | 801 |
1 files changed, 0 insertions, 801 deletions
diff --git a/src/com/android/gallery3d/ui/CropView.java b/src/com/android/gallery3d/ui/CropView.java deleted file mode 100644 index 1890c7630..000000000 --- a/src/com/android/gallery3d/ui/CropView.java +++ /dev/null @@ -1,801 +0,0 @@ -/* - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.gallery3d.ui; - -import android.graphics.Bitmap; -import android.graphics.Bitmap.Config; -import android.graphics.Canvas; -import android.graphics.Color; -import android.graphics.Paint; -import android.graphics.PointF; -import android.graphics.RectF; -import android.media.FaceDetector; -import android.os.Handler; -import android.os.Message; -import android.util.FloatMath; -import android.view.MotionEvent; -import android.view.animation.DecelerateInterpolator; -import android.widget.Toast; - -import com.android.gallery3d.R; -import com.android.gallery3d.anim.Animation; -import com.android.gallery3d.app.AbstractGalleryActivity; -import com.android.gallery3d.common.Utils; - -import java.util.ArrayList; - -import javax.microedition.khronos.opengles.GL11; - -/** - * The activity can crop specific region of interest from an image. - */ -public class CropView extends GLView { - @SuppressWarnings("unused") - private static final String TAG = "CropView"; - - private static final int FACE_PIXEL_COUNT = 120000; // around 400x300 - - private static final int COLOR_OUTLINE = 0xFF008AFF; - private static final int COLOR_FACE_OUTLINE = 0xFF000000; - - private static final float OUTLINE_WIDTH = 3f; - - private static final int SIZE_UNKNOWN = -1; - private static final int TOUCH_TOLERANCE = 30; - - private static final float MIN_SELECTION_LENGTH = 16f; - public static final float UNSPECIFIED = -1f; - - private static final int MAX_FACE_COUNT = 3; - private static final float FACE_EYE_RATIO = 2f; - - private static final int ANIMATION_DURATION = 1250; - - private static final int MOVE_LEFT = 1; - private static final int MOVE_TOP = 2; - private static final int MOVE_RIGHT = 4; - private static final int MOVE_BOTTOM = 8; - private static final int MOVE_BLOCK = 16; - - private static final float MAX_SELECTION_RATIO = 0.8f; - private static final float MIN_SELECTION_RATIO = 0.4f; - private static final float SELECTION_RATIO = 0.60f; - private static final int ANIMATION_TRIGGER = 64; - - private static final int MSG_UPDATE_FACES = 1; - - private float mAspectRatio = UNSPECIFIED; - private float mSpotlightRatioX = 0; - private float mSpotlightRatioY = 0; - - private Handler mMainHandler; - - private FaceHighlightView mFaceDetectionView; - private HighlightRectangle mHighlightRectangle; - private TileImageView mImageView; - private AnimationController mAnimation = new AnimationController(); - - private int mImageWidth = SIZE_UNKNOWN; - private int mImageHeight = SIZE_UNKNOWN; - - private AbstractGalleryActivity mActivity; - - private GLPaint mPaint = new GLPaint(); - private GLPaint mFacePaint = new GLPaint(); - - private int mImageRotation; - - public CropView(AbstractGalleryActivity activity) { - mActivity = activity; - mImageView = new TileImageView(activity); - mFaceDetectionView = new FaceHighlightView(); - mHighlightRectangle = new HighlightRectangle(); - - addComponent(mImageView); - addComponent(mFaceDetectionView); - addComponent(mHighlightRectangle); - - mHighlightRectangle.setVisibility(GLView.INVISIBLE); - - mPaint.setColor(COLOR_OUTLINE); - mPaint.setLineWidth(OUTLINE_WIDTH); - - mFacePaint.setColor(COLOR_FACE_OUTLINE); - mFacePaint.setLineWidth(OUTLINE_WIDTH); - - mMainHandler = new SynchronizedHandler(activity.getGLRoot()) { - @Override - public void handleMessage(Message message) { - Utils.assertTrue(message.what == MSG_UPDATE_FACES); - ((DetectFaceTask) message.obj).updateFaces(); - } - }; - } - - public void setAspectRatio(float ratio) { - mAspectRatio = ratio; - } - - public void setSpotlightRatio(float ratioX, float ratioY) { - mSpotlightRatioX = ratioX; - mSpotlightRatioY = ratioY; - } - - @Override - public void onLayout(boolean changed, int l, int t, int r, int b) { - int width = r - l; - int height = b - t; - - mFaceDetectionView.layout(0, 0, width, height); - mHighlightRectangle.layout(0, 0, width, height); - mImageView.layout(0, 0, width, height); - if (mImageHeight != SIZE_UNKNOWN) { - mAnimation.initialize(); - if (mHighlightRectangle.getVisibility() == GLView.VISIBLE) { - mAnimation.parkNow( - mHighlightRectangle.mHighlightRect); - } - } - } - - private boolean setImageViewPosition(int centerX, int centerY, float scale) { - int inverseX = mImageWidth - centerX; - int inverseY = mImageHeight - centerY; - TileImageView t = mImageView; - int rotation = mImageRotation; - switch (rotation) { - case 0: return t.setPosition(centerX, centerY, scale, 0); - case 90: return t.setPosition(centerY, inverseX, scale, 90); - case 180: return t.setPosition(inverseX, inverseY, scale, 180); - case 270: return t.setPosition(inverseY, centerX, scale, 270); - default: throw new IllegalArgumentException(String.valueOf(rotation)); - } - } - - @Override - public void render(GLCanvas canvas) { - AnimationController a = mAnimation; - if (a.calculate(AnimationTime.get())) invalidate(); - setImageViewPosition(a.getCenterX(), a.getCenterY(), a.getScale()); - super.render(canvas); - } - - @Override - public void renderBackground(GLCanvas canvas) { - canvas.clearBuffer(); - } - - public RectF getCropRectangle() { - if (mHighlightRectangle.getVisibility() == GLView.INVISIBLE) return null; - RectF rect = mHighlightRectangle.mHighlightRect; - RectF result = new RectF(rect.left * mImageWidth, rect.top * mImageHeight, - rect.right * mImageWidth, rect.bottom * mImageHeight); - return result; - } - - public int getImageWidth() { - return mImageWidth; - } - - public int getImageHeight() { - return mImageHeight; - } - - private class FaceHighlightView extends GLView { - private static final int INDEX_NONE = -1; - private ArrayList<RectF> mFaces = new ArrayList<RectF>(); - private RectF mRect = new RectF(); - private int mPressedFaceIndex = INDEX_NONE; - - public void addFace(RectF faceRect) { - mFaces.add(faceRect); - invalidate(); - } - - private void renderFace(GLCanvas canvas, RectF face, boolean pressed) { - GL11 gl = canvas.getGLInstance(); - if (pressed) { - gl.glEnable(GL11.GL_STENCIL_TEST); - gl.glClear(GL11.GL_STENCIL_BUFFER_BIT); - gl.glStencilOp(GL11.GL_KEEP, GL11.GL_KEEP, GL11.GL_REPLACE); - gl.glStencilFunc(GL11.GL_ALWAYS, 1, 1); - } - - RectF r = mAnimation.mapRect(face, mRect); - canvas.fillRect(r.left, r.top, r.width(), r.height(), Color.TRANSPARENT); - canvas.drawRect(r.left, r.top, r.width(), r.height(), mFacePaint); - - if (pressed) { - gl.glStencilOp(GL11.GL_KEEP, GL11.GL_KEEP, GL11.GL_KEEP); - } - } - - @Override - protected void renderBackground(GLCanvas canvas) { - ArrayList<RectF> faces = mFaces; - for (int i = 0, n = faces.size(); i < n; ++i) { - renderFace(canvas, faces.get(i), i == mPressedFaceIndex); - } - - GL11 gl = canvas.getGLInstance(); - if (mPressedFaceIndex != INDEX_NONE) { - gl.glStencilFunc(GL11.GL_NOTEQUAL, 1, 1); - canvas.fillRect(0, 0, getWidth(), getHeight(), 0x66000000); - gl.glDisable(GL11.GL_STENCIL_TEST); - } - } - - private void setPressedFace(int index) { - if (mPressedFaceIndex == index) return; - mPressedFaceIndex = index; - invalidate(); - } - - private int getFaceIndexByPosition(float x, float y) { - ArrayList<RectF> faces = mFaces; - for (int i = 0, n = faces.size(); i < n; ++i) { - RectF r = mAnimation.mapRect(faces.get(i), mRect); - if (r.contains(x, y)) return i; - } - return INDEX_NONE; - } - - @Override - protected boolean onTouch(MotionEvent event) { - float x = event.getX(); - float y = event.getY(); - switch (event.getAction()) { - case MotionEvent.ACTION_DOWN: - case MotionEvent.ACTION_MOVE: { - setPressedFace(getFaceIndexByPosition(x, y)); - break; - } - case MotionEvent.ACTION_CANCEL: - case MotionEvent.ACTION_UP: { - int index = mPressedFaceIndex; - setPressedFace(INDEX_NONE); - if (index != INDEX_NONE) { - mHighlightRectangle.setRectangle(mFaces.get(index)); - mHighlightRectangle.setVisibility(GLView.VISIBLE); - setVisibility(GLView.INVISIBLE); - } - } - } - return true; - } - } - - private class AnimationController extends Animation { - private int mCurrentX; - private int mCurrentY; - private float mCurrentScale; - private int mStartX; - private int mStartY; - private float mStartScale; - private int mTargetX; - private int mTargetY; - private float mTargetScale; - - public AnimationController() { - setDuration(ANIMATION_DURATION); - setInterpolator(new DecelerateInterpolator(4)); - } - - public void initialize() { - mCurrentX = mImageWidth / 2; - mCurrentY = mImageHeight / 2; - mCurrentScale = Math.min(2, Math.min( - (float) getWidth() / mImageWidth, - (float) getHeight() / mImageHeight)); - } - - public void startParkingAnimation(RectF highlight) { - RectF r = mAnimation.mapRect(highlight, new RectF()); - int width = getWidth(); - int height = getHeight(); - - float wr = r.width() / width; - float hr = r.height() / height; - final int d = ANIMATION_TRIGGER; - if (wr >= MIN_SELECTION_RATIO && wr < MAX_SELECTION_RATIO - && hr >= MIN_SELECTION_RATIO && hr < MAX_SELECTION_RATIO - && r.left >= d && r.right < width - d - && r.top >= d && r.bottom < height - d) return; - - mStartX = mCurrentX; - mStartY = mCurrentY; - mStartScale = mCurrentScale; - calculateTarget(highlight); - start(); - } - - public void parkNow(RectF highlight) { - calculateTarget(highlight); - forceStop(); - mStartX = mCurrentX = mTargetX; - mStartY = mCurrentY = mTargetY; - mStartScale = mCurrentScale = mTargetScale; - } - - public void inverseMapPoint(PointF point) { - float s = mCurrentScale; - point.x = Utils.clamp(((point.x - getWidth() * 0.5f) / s - + mCurrentX) / mImageWidth, 0, 1); - point.y = Utils.clamp(((point.y - getHeight() * 0.5f) / s - + mCurrentY) / mImageHeight, 0, 1); - } - - public RectF mapRect(RectF input, RectF output) { - float offsetX = getWidth() * 0.5f; - float offsetY = getHeight() * 0.5f; - int x = mCurrentX; - int y = mCurrentY; - float s = mCurrentScale; - output.set( - offsetX + (input.left * mImageWidth - x) * s, - offsetY + (input.top * mImageHeight - y) * s, - offsetX + (input.right * mImageWidth - x) * s, - offsetY + (input.bottom * mImageHeight - y) * s); - return output; - } - - @Override - protected void onCalculate(float progress) { - mCurrentX = Math.round(mStartX + (mTargetX - mStartX) * progress); - mCurrentY = Math.round(mStartY + (mTargetY - mStartY) * progress); - mCurrentScale = mStartScale + (mTargetScale - mStartScale) * progress; - - if (mCurrentX == mTargetX && mCurrentY == mTargetY - && mCurrentScale == mTargetScale) forceStop(); - } - - public int getCenterX() { - return mCurrentX; - } - - public int getCenterY() { - return mCurrentY; - } - - public float getScale() { - return mCurrentScale; - } - - private void calculateTarget(RectF highlight) { - float width = getWidth(); - float height = getHeight(); - - if (mImageWidth != SIZE_UNKNOWN) { - float minScale = Math.min(width / mImageWidth, height / mImageHeight); - float scale = Utils.clamp(SELECTION_RATIO * Math.min( - width / (highlight.width() * mImageWidth), - height / (highlight.height() * mImageHeight)), minScale, 2f); - int centerX = Math.round( - mImageWidth * (highlight.left + highlight.right) * 0.5f); - int centerY = Math.round( - mImageHeight * (highlight.top + highlight.bottom) * 0.5f); - - if (Math.round(mImageWidth * scale) > width) { - int limitX = Math.round(width * 0.5f / scale); - centerX = Math.round( - (highlight.left + highlight.right) * mImageWidth / 2); - centerX = Utils.clamp(centerX, limitX, mImageWidth - limitX); - } else { - centerX = mImageWidth / 2; - } - if (Math.round(mImageHeight * scale) > height) { - int limitY = Math.round(height * 0.5f / scale); - centerY = Math.round( - (highlight.top + highlight.bottom) * mImageHeight / 2); - centerY = Utils.clamp(centerY, limitY, mImageHeight - limitY); - } else { - centerY = mImageHeight / 2; - } - mTargetX = centerX; - mTargetY = centerY; - mTargetScale = scale; - } - } - - } - - private class HighlightRectangle extends GLView { - private RectF mHighlightRect = new RectF(0.25f, 0.25f, 0.75f, 0.75f); - private RectF mTempRect = new RectF(); - private PointF mTempPoint = new PointF(); - - private ResourceTexture mArrow; - - private int mMovingEdges = 0; - private float mReferenceX; - private float mReferenceY; - - public HighlightRectangle() { - mArrow = new ResourceTexture(mActivity.getAndroidContext(), - R.drawable.camera_crop_holo); - } - - public void setInitRectangle() { - float targetRatio = mAspectRatio == UNSPECIFIED - ? 1f - : mAspectRatio * mImageHeight / mImageWidth; - float w = SELECTION_RATIO / 2f; - float h = SELECTION_RATIO / 2f; - if (targetRatio > 1) { - h = w / targetRatio; - } else { - w = h * targetRatio; - } - mHighlightRect.set(0.5f - w, 0.5f - h, 0.5f + w, 0.5f + h); - } - - public void setRectangle(RectF faceRect) { - mHighlightRect.set(faceRect); - mAnimation.startParkingAnimation(faceRect); - invalidate(); - } - - private void moveEdges(MotionEvent event) { - float scale = mAnimation.getScale(); - float dx = (event.getX() - mReferenceX) / scale / mImageWidth; - float dy = (event.getY() - mReferenceY) / scale / mImageHeight; - mReferenceX = event.getX(); - mReferenceY = event.getY(); - RectF r = mHighlightRect; - - if ((mMovingEdges & MOVE_BLOCK) != 0) { - dx = Utils.clamp(dx, -r.left, 1 - r.right); - dy = Utils.clamp(dy, -r.top , 1 - r.bottom); - r.top += dy; - r.bottom += dy; - r.left += dx; - r.right += dx; - } else { - PointF point = mTempPoint; - point.set(mReferenceX, mReferenceY); - mAnimation.inverseMapPoint(point); - float left = r.left + MIN_SELECTION_LENGTH / mImageWidth; - float right = r.right - MIN_SELECTION_LENGTH / mImageWidth; - float top = r.top + MIN_SELECTION_LENGTH / mImageHeight; - float bottom = r.bottom - MIN_SELECTION_LENGTH / mImageHeight; - if ((mMovingEdges & MOVE_RIGHT) != 0) { - r.right = Utils.clamp(point.x, left, 1f); - } - if ((mMovingEdges & MOVE_LEFT) != 0) { - r.left = Utils.clamp(point.x, 0, right); - } - if ((mMovingEdges & MOVE_TOP) != 0) { - r.top = Utils.clamp(point.y, 0, bottom); - } - if ((mMovingEdges & MOVE_BOTTOM) != 0) { - r.bottom = Utils.clamp(point.y, top, 1f); - } - if (mAspectRatio != UNSPECIFIED) { - float targetRatio = mAspectRatio * mImageHeight / mImageWidth; - if (r.width() / r.height() > targetRatio) { - float height = r.width() / targetRatio; - if ((mMovingEdges & MOVE_BOTTOM) != 0) { - r.bottom = Utils.clamp(r.top + height, top, 1f); - } else { - r.top = Utils.clamp(r.bottom - height, 0, bottom); - } - } else { - float width = r.height() * targetRatio; - if ((mMovingEdges & MOVE_LEFT) != 0) { - r.left = Utils.clamp(r.right - width, 0, right); - } else { - r.right = Utils.clamp(r.left + width, left, 1f); - } - } - if (r.width() / r.height() > targetRatio) { - float width = r.height() * targetRatio; - if ((mMovingEdges & MOVE_LEFT) != 0) { - r.left = Utils.clamp(r.right - width, 0, right); - } else { - r.right = Utils.clamp(r.left + width, left, 1f); - } - } else { - float height = r.width() / targetRatio; - if ((mMovingEdges & MOVE_BOTTOM) != 0) { - r.bottom = Utils.clamp(r.top + height, top, 1f); - } else { - r.top = Utils.clamp(r.bottom - height, 0, bottom); - } - } - } - } - invalidate(); - } - - private void setMovingEdges(MotionEvent event) { - RectF r = mAnimation.mapRect(mHighlightRect, mTempRect); - float x = event.getX(); - float y = event.getY(); - - if (x > r.left + TOUCH_TOLERANCE && x < r.right - TOUCH_TOLERANCE - && y > r.top + TOUCH_TOLERANCE && y < r.bottom - TOUCH_TOLERANCE) { - mMovingEdges = MOVE_BLOCK; - return; - } - - boolean inVerticalRange = (r.top - TOUCH_TOLERANCE) <= y - && y <= (r.bottom + TOUCH_TOLERANCE); - boolean inHorizontalRange = (r.left - TOUCH_TOLERANCE) <= x - && x <= (r.right + TOUCH_TOLERANCE); - - if (inVerticalRange) { - boolean left = Math.abs(x - r.left) <= TOUCH_TOLERANCE; - boolean right = Math.abs(x - r.right) <= TOUCH_TOLERANCE; - if (left && right) { - left = Math.abs(x - r.left) < Math.abs(x - r.right); - right = !left; - } - if (left) mMovingEdges |= MOVE_LEFT; - if (right) mMovingEdges |= MOVE_RIGHT; - if (mAspectRatio != UNSPECIFIED && inHorizontalRange) { - mMovingEdges |= (y > - (r.top + r.bottom) / 2) ? MOVE_BOTTOM : MOVE_TOP; - } - } - if (inHorizontalRange) { - boolean top = Math.abs(y - r.top) <= TOUCH_TOLERANCE; - boolean bottom = Math.abs(y - r.bottom) <= TOUCH_TOLERANCE; - if (top && bottom) { - top = Math.abs(y - r.top) < Math.abs(y - r.bottom); - bottom = !top; - } - if (top) mMovingEdges |= MOVE_TOP; - if (bottom) mMovingEdges |= MOVE_BOTTOM; - if (mAspectRatio != UNSPECIFIED && inVerticalRange) { - mMovingEdges |= (x > - (r.left + r.right) / 2) ? MOVE_RIGHT : MOVE_LEFT; - } - } - } - - @Override - protected boolean onTouch(MotionEvent event) { - switch (event.getAction()) { - case MotionEvent.ACTION_DOWN: { - mReferenceX = event.getX(); - mReferenceY = event.getY(); - setMovingEdges(event); - invalidate(); - return true; - } - case MotionEvent.ACTION_MOVE: - moveEdges(event); - break; - case MotionEvent.ACTION_CANCEL: - case MotionEvent.ACTION_UP: { - mMovingEdges = 0; - mAnimation.startParkingAnimation(mHighlightRect); - invalidate(); - return true; - } - } - return true; - } - - @Override - protected void renderBackground(GLCanvas canvas) { - RectF r = mAnimation.mapRect(mHighlightRect, mTempRect); - drawHighlightRectangle(canvas, r); - - float centerY = (r.top + r.bottom) / 2; - float centerX = (r.left + r.right) / 2; - boolean notMoving = mMovingEdges == 0; - if ((mMovingEdges & MOVE_RIGHT) != 0 || notMoving) { - mArrow.draw(canvas, - Math.round(r.right - mArrow.getWidth() / 2), - Math.round(centerY - mArrow.getHeight() / 2)); - } - if ((mMovingEdges & MOVE_LEFT) != 0 || notMoving) { - mArrow.draw(canvas, - Math.round(r.left - mArrow.getWidth() / 2), - Math.round(centerY - mArrow.getHeight() / 2)); - } - if ((mMovingEdges & MOVE_TOP) != 0 || notMoving) { - mArrow.draw(canvas, - Math.round(centerX - mArrow.getWidth() / 2), - Math.round(r.top - mArrow.getHeight() / 2)); - } - if ((mMovingEdges & MOVE_BOTTOM) != 0 || notMoving) { - mArrow.draw(canvas, - Math.round(centerX - mArrow.getWidth() / 2), - Math.round(r.bottom - mArrow.getHeight() / 2)); - } - } - - private void drawHighlightRectangle(GLCanvas canvas, RectF r) { - GL11 gl = canvas.getGLInstance(); - gl.glLineWidth(3.0f); - gl.glEnable(GL11.GL_LINE_SMOOTH); - - gl.glEnable(GL11.GL_STENCIL_TEST); - gl.glClear(GL11.GL_STENCIL_BUFFER_BIT); - gl.glStencilOp(GL11.GL_KEEP, GL11.GL_KEEP, GL11.GL_REPLACE); - gl.glStencilFunc(GL11.GL_ALWAYS, 1, 1); - - if (mSpotlightRatioX == 0 || mSpotlightRatioY == 0) { - canvas.fillRect(r.left, r.top, r.width(), r.height(), Color.TRANSPARENT); - canvas.drawRect(r.left, r.top, r.width(), r.height(), mPaint); - } else { - float sx = r.width() * mSpotlightRatioX; - float sy = r.height() * mSpotlightRatioY; - float cx = r.centerX(); - float cy = r.centerY(); - - canvas.fillRect(cx - sx / 2, cy - sy / 2, sx, sy, Color.TRANSPARENT); - canvas.drawRect(cx - sx / 2, cy - sy / 2, sx, sy, mPaint); - canvas.drawRect(r.left, r.top, r.width(), r.height(), mPaint); - - gl.glStencilFunc(GL11.GL_NOTEQUAL, 1, 1); - gl.glStencilOp(GL11.GL_KEEP, GL11.GL_KEEP, GL11.GL_REPLACE); - - canvas.drawRect(cx - sy / 2, cy - sx / 2, sy, sx, mPaint); - canvas.fillRect(cx - sy / 2, cy - sx / 2, sy, sx, Color.TRANSPARENT); - canvas.fillRect(r.left, r.top, r.width(), r.height(), 0x80000000); - } - - gl.glStencilFunc(GL11.GL_NOTEQUAL, 1, 1); - gl.glStencilOp(GL11.GL_KEEP, GL11.GL_KEEP, GL11.GL_KEEP); - - canvas.fillRect(0, 0, getWidth(), getHeight(), 0xA0000000); - - gl.glDisable(GL11.GL_STENCIL_TEST); - } - } - - private class DetectFaceTask extends Thread { - private final FaceDetector.Face[] mFaces = new FaceDetector.Face[MAX_FACE_COUNT]; - private final Bitmap mFaceBitmap; - private int mFaceCount; - - public DetectFaceTask(Bitmap bitmap) { - mFaceBitmap = bitmap; - setName("face-detect"); - } - - @Override - public void run() { - Bitmap bitmap = mFaceBitmap; - FaceDetector detector = new FaceDetector( - bitmap.getWidth(), bitmap.getHeight(), MAX_FACE_COUNT); - mFaceCount = detector.findFaces(bitmap, mFaces); - mMainHandler.sendMessage( - mMainHandler.obtainMessage(MSG_UPDATE_FACES, this)); - } - - private RectF getFaceRect(FaceDetector.Face face) { - PointF point = new PointF(); - face.getMidPoint(point); - - int width = mFaceBitmap.getWidth(); - int height = mFaceBitmap.getHeight(); - float rx = face.eyesDistance() * FACE_EYE_RATIO; - float ry = rx; - float aspect = mAspectRatio; - if (aspect != UNSPECIFIED) { - if (aspect > 1) { - rx = ry * aspect; - } else { - ry = rx / aspect; - } - } - - RectF r = new RectF( - point.x - rx, point.y - ry, point.x + rx, point.y + ry); - r.intersect(0, 0, width, height); - - if (aspect != UNSPECIFIED) { - if (r.width() / r.height() > aspect) { - float w = r.height() * aspect; - r.left = (r.left + r.right - w) * 0.5f; - r.right = r.left + w; - } else { - float h = r.width() / aspect; - r.top = (r.top + r.bottom - h) * 0.5f; - r.bottom = r.top + h; - } - } - - r.left /= width; - r.right /= width; - r.top /= height; - r.bottom /= height; - return r; - } - - public void updateFaces() { - if (mFaceCount > 1) { - for (int i = 0, n = mFaceCount; i < n; ++i) { - mFaceDetectionView.addFace(getFaceRect(mFaces[i])); - } - mFaceDetectionView.setVisibility(GLView.VISIBLE); - Toast.makeText(mActivity.getAndroidContext(), - R.string.multiface_crop_help, Toast.LENGTH_SHORT).show(); - } else if (mFaceCount == 1) { - mFaceDetectionView.setVisibility(GLView.INVISIBLE); - mHighlightRectangle.setRectangle(getFaceRect(mFaces[0])); - mHighlightRectangle.setVisibility(GLView.VISIBLE); - } else /*mFaceCount == 0*/ { - mHighlightRectangle.setInitRectangle(); - mHighlightRectangle.setVisibility(GLView.VISIBLE); - } - } - } - - public void setDataModel(TileImageView.Model dataModel, int rotation) { - if (((rotation / 90) & 0x01) != 0) { - mImageWidth = dataModel.getImageHeight(); - mImageHeight = dataModel.getImageWidth(); - } else { - mImageWidth = dataModel.getImageWidth(); - mImageHeight = dataModel.getImageHeight(); - } - - mImageRotation = rotation; - - mImageView.setModel(dataModel); - mAnimation.initialize(); - } - - public void detectFaces(Bitmap bitmap) { - int rotation = mImageRotation; - int width = bitmap.getWidth(); - int height = bitmap.getHeight(); - float scale = FloatMath.sqrt((float) FACE_PIXEL_COUNT / (width * height)); - - // faceBitmap is a correctly rotated bitmap, as viewed by a user. - Bitmap faceBitmap; - if (((rotation / 90) & 1) == 0) { - int w = (Math.round(width * scale) & ~1); // must be even - int h = Math.round(height * scale); - faceBitmap = Bitmap.createBitmap(w, h, Config.RGB_565); - Canvas canvas = new Canvas(faceBitmap); - canvas.rotate(rotation, w / 2, h / 2); - canvas.scale((float) w / width, (float) h / height); - canvas.drawBitmap(bitmap, 0, 0, new Paint(Paint.FILTER_BITMAP_FLAG)); - } else { - int w = (Math.round(height * scale) & ~1); // must be even - int h = Math.round(width * scale); - faceBitmap = Bitmap.createBitmap(w, h, Config.RGB_565); - Canvas canvas = new Canvas(faceBitmap); - canvas.translate(w / 2, h / 2); - canvas.rotate(rotation); - canvas.translate(-h / 2, -w / 2); - canvas.scale((float) w / height, (float) h / width); - canvas.drawBitmap(bitmap, 0, 0, new Paint(Paint.FILTER_BITMAP_FLAG)); - } - new DetectFaceTask(faceBitmap).start(); - } - - public void initializeHighlightRectangle() { - mHighlightRectangle.setInitRectangle(); - mHighlightRectangle.setVisibility(GLView.VISIBLE); - } - - public void resume() { - mImageView.prepareTextures(); - } - - public void pause() { - mImageView.freeTextures(); - } -} - |