/*
* 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 android.support.design.testutils;
import android.graphics.drawable.GradientDrawable;
import android.support.annotation.ColorInt;
/**
* Custom drawable class that provides a reliable way for testing various tinting scenarios
* across a range of platform versions. ColorDrawable doesn't support tinting on Kitkat and
* below, and BitmapDrawable (PNG sources) appears to slightly alter green and blue channels
* by a few units on some of the older platform versions (Gingerbread). Using GradientDrawable
* allows doing reliable tests at the level of individual channels (alpha / red / green / blue)
* for tinted and untinted icons in the testIconTinting method.
*/
public class TestDrawable extends GradientDrawable {
private int mWidth;
private int mHeight;
public TestDrawable(@ColorInt int color, int width, int height) {
super(Orientation.TOP_BOTTOM, new int[] { color, color });
mWidth = width;
mHeight = height;
}
@Override
public int getIntrinsicWidth() {
return mWidth;
}
@Override
public int getIntrinsicHeight() {
return mHeight;
}
}