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/*
* Copyright (C) 2021 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.wallpaper.picker.individual;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Path;
import android.util.AttributeSet;
import android.widget.ImageView;
import androidx.core.graphics.PathParser;
import com.android.wallpaper.R;
/**
* A view where the image can be optionally clipped to have a custom border, by default circular.
*/
public class CustomShapeImageView extends ImageView {
private boolean mClipped;
private boolean mPathSet;
private Path mPath;
public CustomShapeImageView(Context context) {
super(context);
}
public CustomShapeImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomShapeImageView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
/**
* Returns whether the image is clipped with a circular border.
*/
public boolean getClipped() {
return mClipped;
}
/**
* Modifies how the image is clipped. When called with true, the image
* is clipped with a circular border; with false, the default border.
*
* @param clippedValue Whether the image is clipped with a circular
* border.
*/
public void setClipped(boolean clippedValue) {
mClipped = clippedValue;
invalidate();
requestLayout();
}
/**
* Sets the border of the thumbnail.
*
* @param clippingPathResource The resource ID of the path string of the desired
* border.
*/
public void setClippingPath(int clippingPathResource) {
String string = getResources().getString(clippingPathResource);
mPath = PathParser.createPathFromPathData(string);
mPathSet = true;
}
@Override
protected void onDraw(Canvas canvas) {
if (mClipped) {
if (!mPathSet) {
setClippingPath(R.string.circular_border);
}
float scale = (float) (getHeight() / 100.0);
Matrix matrix = new Matrix();
matrix.postScale(scale, scale);
Path scaledPath = new Path(mPath);
scaledPath.transform(matrix);
canvas.clipPath(scaledPath);
}
super.onDraw(canvas);
}
}
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