Add ProgressView
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package com.hippo.ehviewer.gallery.ui;
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import android.graphics.Color;
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import android.view.animation.AccelerateDecelerateInterpolator;
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import android.view.animation.Interpolator;
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import android.view.animation.LinearInterpolator;
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import com.hippo.ehviewer.gallery.anim.Animation;
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import com.hippo.ehviewer.gallery.glrenderer.GLCanvas;
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import com.hippo.ehviewer.gallery.glrenderer.GLPaint;
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import com.hippo.yorozuya.MathUtils;
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import java.util.ArrayList;
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import java.util.List;
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public class ProgressView extends GLView {
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private static final Interpolator LINEAR_INTERPOLATOR = new LinearInterpolator();
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private static final Interpolator END_CURVE_INTERPOLATOR = new EndCurveInterpolator();
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private static final Interpolator START_CURVE_INTERPOLATOR = new StartCurveInterpolator();
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private static final long ANIMATION_DURATION = 1333;
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private GLPaint mGLPaint;
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private float mItemX;
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private float mItemY;
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private float mItemWidth;
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private float mItemHeight;
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private float mStartTrim = 0.0f;
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private float mEndTrim = 0.0f;
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private float mTrimRotation = 0.0f;
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private float mCanvasRotation = 0.0f;
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private boolean mIndeterminate = false;
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private List<Animation> mAnimations;
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public ProgressView() {
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mGLPaint = new GLPaint();
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mGLPaint.setColor(Color.WHITE);
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mAnimations = new ArrayList<>();
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setupAnimations();
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}
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public void setupAnimations() {
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Animation endTrim = new Animation() {
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@Override
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protected void onCalculate(float progress) {
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mEndTrim = MathUtils.lerp(0.0f, 0.75f, progress);
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}
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};
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endTrim.setDuration(ANIMATION_DURATION);
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endTrim.setInterpolator(START_CURVE_INTERPOLATOR);
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endTrim.setRepeatCount(Animation.INFINITE);
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Animation startTrim = new Animation() {
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@Override
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protected void onCalculate(float progress) {
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mStartTrim = MathUtils.lerp(0.0f, 0.75f, progress);
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}
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};
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startTrim.setDuration(ANIMATION_DURATION);
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startTrim.setInterpolator(END_CURVE_INTERPOLATOR);
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startTrim.setRepeatCount(Animation.INFINITE);
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Animation trimRotation = new Animation() {
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@Override
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protected void onCalculate(float progress) {
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mTrimRotation = MathUtils.lerp(0.0f, 0.25f, progress);
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}
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};
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trimRotation.setDuration(ANIMATION_DURATION);
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trimRotation.setInterpolator(LINEAR_INTERPOLATOR);
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trimRotation.setRepeatCount(Animation.INFINITE);
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Animation canvasRotation = new Animation() {
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@Override
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protected void onCalculate(float progress) {
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mCanvasRotation = MathUtils.lerp(0.0f, 720.0f, progress);
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}
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};
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canvasRotation.setDuration(6665L);
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canvasRotation.setInterpolator(LINEAR_INTERPOLATOR);
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canvasRotation.setRepeatCount(Animation.INFINITE);
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mAnimations.add(endTrim);
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mAnimations.add(startTrim);
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mAnimations.add(trimRotation);
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mAnimations.add(canvasRotation);
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}
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private void startAnimations() {
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List<Animation> animations = mAnimations;
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for (int i = 0, n = animations.size(); i < n; i++) {
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animations.get(i).start();
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}
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}
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private void stopAnimations() {
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List<Animation> animations = mAnimations;
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for (int i = 0, n = animations.size(); i < n; i++) {
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animations.get(i).forceStop();
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}
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}
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@Override
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protected void onLayout(boolean changeSize, int left, int top, int right,
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int bottom) {
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super.onLayout(changeSize, left, top, right, bottom);
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int width = right - left;
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int height = bottom - top;
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mGLPaint.setLineWidth(Math.min(width, height) / 12.0f);
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mItemX = width / 48.0f * 5.0f;
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mItemY = height / 48.0f * 5.0f;
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mItemWidth = width / 48.0f * 38.0f;
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mItemHeight = height / 48.0f * 38.0f;
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}
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public void setColor(int color) {
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mGLPaint.setColor(color);
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invalidate();
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}
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public void setIndeterminate(boolean indeterminate) {
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if (mIndeterminate != indeterminate) {
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mIndeterminate = indeterminate;
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if (indeterminate) {
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startAnimations();
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} else {
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stopAnimations();
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}
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invalidate();
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}
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}
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public boolean isIndeterminate() {
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return mIndeterminate;
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}
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public void setProgress(float progress) {
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if (!mIndeterminate) {
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mStartTrim = -0.25f;
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mEndTrim = progress - 0.25f;
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mTrimRotation = 0.0f;
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mCanvasRotation = 0.0f;
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invalidate();
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}
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}
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@Override
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protected void onRender(GLCanvas canvas) {
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update();
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canvas.save();
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int width = getWidth();
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int height = getHeight();
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int cx = width / 2;
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int cy = height / 2;
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canvas.translate(cx, cy);
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canvas.rotate(mCanvasRotation, 0, 0, 1);
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if (mCanvasRotation % 180 != 0) {
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canvas.translate(-cy, -cx);
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} else {
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canvas.translate(-cx, -cy);
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}
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float startAngle = (mStartTrim + mTrimRotation) * 360.0f;
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float endAngle = (mEndTrim + mTrimRotation) * 360.0f;
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float sweepAngle = endAngle - startAngle;
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if (mIndeterminate) {
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float diameter = Math.min(mItemWidth, mItemHeight);
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float minAngle = (float) (360.0D / (diameter * 3.141592653589793D / 4));
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if ((sweepAngle < minAngle) && (sweepAngle > -minAngle)) {
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sweepAngle = Math.signum(sweepAngle) * minAngle;
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}
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}
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canvas.drawArc(mItemX, mItemY, mItemWidth, mItemHeight, startAngle, sweepAngle, mGLPaint);
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canvas.restore();
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}
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private void update() {
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boolean invalidate = false;
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if (mIndeterminate) {
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long currentTime = AnimationTime.get();
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List<Animation> animations = mAnimations;
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for (int i = 0, n = animations.size(); i < n; i++) {
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invalidate |= animations.get(i).calculate(currentTime);
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}
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}
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if (invalidate) {
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invalidate();
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}
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}
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private static class EndCurveInterpolator extends AccelerateDecelerateInterpolator {
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@Override
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public float getInterpolation(float input) {
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return super.getInterpolation(Math.max(0.0f, (input - 0.5f) * 2.0f));
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}
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}
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private static class StartCurveInterpolator extends AccelerateDecelerateInterpolator {
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@Override
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public float getInterpolation(float input) {
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return super.getInterpolation(Math.min(1.0f, input * 2.0f));
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}
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}
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}
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