/*
 * Copyright (C) 2013 Eric Frohnhoefer
 *
 * 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 org.sufficientlysecure.keychain.ui.widget;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.widget.TextView;

/**
 * Copied from StickyListHeaders lib example
 * 
 * @author Eric Frohnhoefer
 */
public class UnderlineTextView extends TextView {
    private final Paint mPaint = new Paint();
    private int mUnderlineHeight = 0;

    public UnderlineTextView(Context context) {
        this(context, null);
    }

    public UnderlineTextView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public UnderlineTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);

        init(context, attrs);
    }

    private void init(Context context, AttributeSet attrs) {
        Resources r = getResources();
        mUnderlineHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2,
                r.getDisplayMetrics());
    }

    @Override
    public void setPadding(int left, int top, int right, int bottom) {
        super.setPadding(left, top, right, bottom + mUnderlineHeight);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        // Draw the underline the same color as the text
        mPaint.setColor(getTextColors().getDefaultColor());
        canvas.drawRect(0, getHeight() - mUnderlineHeight, getWidth(), getHeight(), mPaint);
    }
}
