/* * Copyright (C) 2017 Gautam Chibde * * 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.chibde.visualizer; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.LinearGradient; import android.graphics.Shader; import androidx.annotation.Nullable; import android.util.AttributeSet; import com.chibde.BaseVisualizer; /** * TODO * * Created by gautam chibde on 29/10/17. */ class BlazingColorVisualizer extends BaseVisualizer { private Shader shader; public BlazingColorVisualizer(Context context) { super(context); } public BlazingColorVisualizer(Context context, @Nullable AttributeSet attrs) { super(context, attrs); } public BlazingColorVisualizer(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } @Override protected void init() { shader = new LinearGradient(0, 0, 0, getHeight(), Color.BLUE, Color.GREEN, Shader.TileMode.MIRROR /*or REPEAT*/); } @Override protected void onDraw(Canvas canvas) { if (bytes != null) { paint.setShader(shader); for (int i = 0, k = 0; i < (bytes.length - 1) && k < bytes.length; i++, k++) { int top = getHeight() + ((byte) (Math.abs(bytes[k]) + 128)) * getHeight() / 128; canvas.drawLine(i, getHeight(), i, top, paint); } super.onDraw(canvas); } } }