75 lines
2.4 KiB
Java
75 lines
2.4 KiB
Java
package org.joinmastodon.android.ui.wrapstodon;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Outline;
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import android.graphics.Paint;
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import android.graphics.PorterDuff;
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import android.graphics.PorterDuffXfermode;
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import android.util.AttributeSet;
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import android.view.View;
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import android.view.ViewOutlineProvider;
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import android.widget.ImageView;
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import org.joinmastodon.android.R;
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/**
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* Software-rendering-friendly rounded-corners image view. Relies on arcane xrefmode magic.
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*/
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public class RoundedImageView extends ImageView{
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private int cornerRadius;
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private boolean roundBottomCorners=true;
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private Paint clearPaint=new Paint(Paint.ANTI_ALIAS_FLAG), paint=new Paint(Paint.ANTI_ALIAS_FLAG);
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public RoundedImageView(Context context){
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this(context, null);
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}
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public RoundedImageView(Context context, AttributeSet attrs){
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this(context, attrs, 0);
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}
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public RoundedImageView(Context context, AttributeSet attrs, int defStyle){
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super(context, attrs, defStyle);
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TypedArray ta=context.obtainStyledAttributes(attrs, R.styleable.RoundedImageView);
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cornerRadius=ta.getDimensionPixelOffset(R.styleable.RoundedImageView_cornerRadius, 0);
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roundBottomCorners=ta.getBoolean(R.styleable.RoundedImageView_roundBottomCorners, true);
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ta.recycle();
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setOutlineProvider(new ViewOutlineProvider(){
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@Override
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public void getOutline(View view, Outline outline){
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outline.setRoundRect(0, 0, view.getWidth(), view.getHeight()+(roundBottomCorners ? 0 : cornerRadius), cornerRadius);
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}
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});
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setClipToOutline(true);
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clearPaint.setColor(0xFFFFFFFF);
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clearPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
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paint.setColor(0xFF0ff000);
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}
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public void setCornerRadius(int cornerRadius){
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this.cornerRadius=cornerRadius;
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invalidateOutline();
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}
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public void setRoundBottomCorners(boolean roundBottomCorners){
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this.roundBottomCorners=roundBottomCorners;
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invalidateOutline();
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}
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@Override
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public void draw(Canvas canvas){
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if(canvas.isHardwareAccelerated()){
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super.draw(canvas);
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return;
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}
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canvas.saveLayer(0, 0, getWidth(), getHeight(), null);
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canvas.drawRoundRect(0, 0, getWidth(), getHeight()+(roundBottomCorners ? 0 : cornerRadius), cornerRadius, cornerRadius, paint);
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canvas.saveLayer(0, 0, getWidth(), getHeight(), clearPaint);
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super.draw(canvas);
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canvas.restore();
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canvas.restore();
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}
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}
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