116 lines
3.6 KiB
Java
116 lines
3.6 KiB
Java
/*
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* Copyright (C) 2015 Hippo Seven
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.hippo.ehviewer.widget;
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import android.content.Context;
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import android.content.res.Resources;
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import android.graphics.Canvas;
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import android.graphics.drawable.Drawable;
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import android.util.AttributeSet;
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import android.view.View;
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import androidx.core.content.ContextCompat;
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import com.hippo.ehviewer.R;
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import com.hippo.yorozuya.MathUtils;
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/**
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* 5 stars, from 0 to 10
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*/
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public class SimpleRatingView extends View {
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private Drawable mStarDrawable;
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private Drawable mStarHalfDrawable;
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private Drawable mStarOutlineDrawable;
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private int mRatingSize;
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private int mRatingInterval;
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private float mRating;
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private int mRatingInt;
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public SimpleRatingView(Context context) {
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super(context);
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init(context);
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}
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public SimpleRatingView(Context context, AttributeSet attrs) {
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super(context, attrs);
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init(context);
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}
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public SimpleRatingView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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init(context);
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}
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private void init(Context context) {
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Resources resources = context.getResources();
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mStarDrawable = ContextCompat.getDrawable(context, R.drawable.v_star_x16);
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mStarHalfDrawable = ContextCompat.getDrawable(context, R.drawable.v_star_half_x16);
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mStarOutlineDrawable = ContextCompat.getDrawable(context, R.drawable.v_star_outline_x16);
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mRatingSize = resources.getDimensionPixelOffset(R.dimen.rating_size);
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mRatingInterval = resources.getDimensionPixelOffset(R.dimen.rating_interval);
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mStarDrawable.setBounds(0, 0, mRatingSize, mRatingSize);
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mStarHalfDrawable.setBounds(0, 0, mRatingSize, mRatingSize);
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mStarOutlineDrawable.setBounds(0, 0, mRatingSize, mRatingSize);
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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setMeasuredDimension(mRatingSize * 5 + mRatingInterval * 4, mRatingSize);
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}
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@Override
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protected void onDraw(Canvas canvas) {
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int ratingInt = mRatingInt;
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int step = mRatingSize + mRatingInterval;
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int numStar = ratingInt / 2;
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int numStarHalf = ratingInt % 2;
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int saved = canvas.save();
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while (numStar-- > 0) {
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mStarDrawable.draw(canvas);
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canvas.translate(step, 0);
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}
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if (numStarHalf == 1) {
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mStarHalfDrawable.draw(canvas);
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canvas.translate(step, 0);
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}
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int numOutline = 5 - numStar - numStarHalf;
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while (numOutline-- > 0) {
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mStarOutlineDrawable.draw(canvas);
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canvas.translate(step, 0);
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}
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canvas.restoreToCount(saved);
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}
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public float getRating() {
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return mRating;
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}
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public void setRating(float rating) {
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if (mRating != rating) {
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mRating = rating;
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int ratingInt = MathUtils.clamp((int) Math.ceil(rating * 2), 0, 10);
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if (mRatingInt != ratingInt) {
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mRatingInt = ratingInt;
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invalidate();
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}
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}
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}
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}
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