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/*
* Copyright (C) 2013 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.filtershow.imageshow;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.RectF;
import android.view.MotionEvent;
import com.android.gallery3d.filtershow.filters.FilterPoint;
import com.android.gallery3d.filtershow.filters.RedEyeCandidate;
public class ImageRedEye extends ImagePoint {
private static final String LOGTAG = "ImageRedEyes";
private RectF mCurrentRect = null;
public ImageRedEye(Context context) {
super(context);
}
@Override
public void resetParameter() {
super.resetParameter();
invalidate();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
super.onTouchEvent(event);
float ex = event.getX();
float ey = event.getY();
// let's transform (ex, ey) to displayed image coordinates
if (event.getAction() == MotionEvent.ACTION_DOWN) {
mCurrentRect = new RectF();
mCurrentRect.left = ex - mTouchPadding;
mCurrentRect.top = ey - mTouchPadding;
}
if (event.getAction() == MotionEvent.ACTION_MOVE) {
mCurrentRect.right = ex + mTouchPadding;
mCurrentRect.bottom = ey + mTouchPadding;
}
if (event.getAction() == MotionEvent.ACTION_UP) {
if (mCurrentRect != null) {
// transform to original coordinates
GeometryMetadata geo = getImagePreset().mGeoData;
Matrix originalToScreen = geo.getOriginalToScreen(true,
mImageLoader.getOriginalBounds().width(),
mImageLoader.getOriginalBounds().height(),
getWidth(), getHeight());
Matrix originalNoRotateToScreen = geo.getOriginalToScreen(false,
mImageLoader.getOriginalBounds().width(),
mImageLoader.getOriginalBounds().height(),
getWidth(), getHeight());
Matrix invert = new Matrix();
originalToScreen.invert(invert);
RectF r = new RectF(mCurrentRect);
invert.mapRect(r);
RectF r2 = new RectF(mCurrentRect);
invert.reset();
originalNoRotateToScreen.invert(invert);
invert.mapRect(r2);
mRedEyeRep.addRect(r, r2);
this.resetImageCaches(this);
}
mCurrentRect = null;
}
mEditorRedEye.commitLocalRepresentation();
invalidate();
return true;
}
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
Paint paint = new Paint();
paint.setStyle(Style.STROKE);
paint.setColor(Color.RED);
paint.setStrokeWidth(2);
if (mCurrentRect != null) {
paint.setColor(Color.RED);
RectF drawRect = new RectF(mCurrentRect);
canvas.drawRect(drawRect, paint);
}
}
@Override
protected void drawPoint(FilterPoint point, Canvas canvas, Matrix originalToScreen,
Matrix originalRotateToScreen, Paint paint) {
RedEyeCandidate candidate = (RedEyeCandidate) point;
RectF rect = candidate.getRect();
RectF drawRect = new RectF();
originalToScreen.mapRect(drawRect, rect);
RectF fullRect = new RectF();
originalRotateToScreen.mapRect(fullRect, rect);
paint.setColor(Color.BLUE);
canvas.drawRect(fullRect, paint);
canvas.drawLine(fullRect.centerX(), fullRect.top,
fullRect.centerX(), fullRect.bottom, paint);
canvas.drawLine(fullRect.left, fullRect.centerY(),
fullRect.right, fullRect.centerY(), paint);
paint.setColor(Color.GREEN);
float dw = drawRect.width();
float dh = drawRect.height();
float dx = fullRect.centerX() - dw / 2;
float dy = fullRect.centerY() - dh / 2;
drawRect.set(dx, dy, dx + dw, dy + dh);
canvas.drawRect(drawRect, paint);
canvas.drawLine(drawRect.centerX(), drawRect.top,
drawRect.centerX(), drawRect.bottom, paint);
canvas.drawLine(drawRect.left, drawRect.centerY(),
drawRect.right, drawRect.centerY(), paint);
canvas.drawCircle(drawRect.centerX(), drawRect.centerY(),
mTouchPadding, paint);
}
}
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