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/*
* Copyright (C) 2012 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.Matrix;
import android.util.AttributeSet;
import android.view.MotionEvent;
import com.android.gallery3d.filtershow.editors.EditorVignette;
import com.android.gallery3d.filtershow.filters.FilterVignetteRepresentation;
public class ImageVignette extends ImageShow {
private static final String LOGTAG = "ImageVignette";
private FilterVignetteRepresentation mVignetteRep;
private EditorVignette mEditorVignette;
private int mActiveHandle = -1;
EclipseControl mElipse;
public ImageVignette(Context context) {
super(context);
mElipse = new EclipseControl(context);
}
public ImageVignette(Context context, AttributeSet attrs) {
super(context, attrs);
mElipse = new EclipseControl(context);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
int mask = event.getActionMasked();
if (MotionEvent.ACTION_UP == mask) {
mActiveHandle = -1;
}
if (MotionEvent.ACTION_DOWN == mask && event.getPointerCount() == 1) {
mActiveHandle = mElipse.getCloseHandle(event.getX(), event.getY());
}
if (mActiveHandle == -1 || event.getPointerCount() > 1) {
mActiveHandle = -1;
return super.onTouchEvent(event);
}
float x = event.getX();
float y = event.getY();
mElipse.setScrToImageMatrix(getScreenToImageMatrix(true));
switch (mask) {
case (MotionEvent.ACTION_DOWN):
mElipse.actionDown(x, y, mVignetteRep);
break;
case (MotionEvent.ACTION_UP):
case (MotionEvent.ACTION_MOVE):
mElipse.actionMove(mActiveHandle, x, y, mVignetteRep);
setRepresentation(mVignetteRep);
break;
}
resetImageCaches(this);
invalidate();
mEditorVignette.commitLocalRepresentation();
return true;
}
public void setRepresentation(FilterVignetteRepresentation vignetteRep) {
mVignetteRep = vignetteRep;
Matrix toImg = getScreenToImageMatrix(false);
Matrix toScr = new Matrix();
toImg.invert(toScr);
float[] c = new float[] {
mVignetteRep.getCenterX(), mVignetteRep.getCenterY() };
if (Float.isNaN(c[0])) {
float cx = mImageLoader.getOriginalBounds().width() / 2;
float cy = mImageLoader.getOriginalBounds().height() / 2;
float rx = cx * .8f;
float ry = cy * .8f;
mVignetteRep.setCenter(cx, cy);
mVignetteRep.setRadius(rx, ry);
c[0] = cx;
c[1] = cy;
toScr.mapPoints(c);
mElipse.setCenter(c[0], c[1]);
mElipse.setRadius(c[0] * 0.8f, c[1] * 0.8f);
} else {
toScr.mapPoints(c);
mElipse.setCenter(c[0], c[1]);
mElipse.setRadius(toScr.mapRadius(mVignetteRep.getRadiusX()),
toScr.mapRadius(mVignetteRep.getRadiusY()));
}
}
public void setEditor(EditorVignette editorVignette) {
mEditorVignette = editorVignette;
}
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
mElipse.draw(canvas);
}
}
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