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/*
* Copyright (C) 2016 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.settingslib;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.text.style.ImageSpan;
/**
* An extension of ImageSpan which adds a padding before the image.
*/
public class RestrictedLockImageSpan extends ImageSpan {
private Context mContext;
private final float mExtraPadding;
private final Drawable mRestrictedPadlock;
public RestrictedLockImageSpan(Context context) {
// we are overriding getDrawable, so passing null to super class here.
super((Drawable) null);
mContext = context;
mExtraPadding = mContext.getResources().getDimensionPixelSize(
R.dimen.restricted_icon_padding);
mRestrictedPadlock = RestrictedLockUtils.getRestrictedPadlock(mContext);
}
@Override
public Drawable getDrawable() {
return mRestrictedPadlock;
}
@Override
public void draw(Canvas canvas, CharSequence text, int start, int end, float x, int top, int y,
int bottom, Paint paint) {
Drawable drawable = getDrawable();
canvas.save();
// Add extra padding before the padlock.
float transX = x + mExtraPadding;
float transY = (bottom - drawable.getBounds().bottom) / 2.0f;
canvas.translate(transX, transY);
drawable.draw(canvas);
canvas.restore();
}
@Override
public int getSize(Paint paint, CharSequence text, int start, int end,
Paint.FontMetricsInt fontMetrics) {
int size = super.getSize(paint, text, start, end, fontMetrics);
size += 2 * mExtraPadding;
return size;
}
}
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