mirror of https://github.com/NekoX-Dev/NekoX.git
117 lines
3.9 KiB
Java
117 lines
3.9 KiB
Java
/*
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* This is the source code of Telegram for Android v. 1.7.x.
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* It is licensed under GNU GPL v. 2 or later.
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* You should have received a copy of the license in this archive (see LICENSE).
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*
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* Copyright Nikolai Kudashov, 2013-2014.
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*/
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package org.telegram.ui.ActionBar;
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import android.graphics.Canvas;
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import android.graphics.ColorFilter;
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import android.graphics.Paint;
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import android.graphics.drawable.Drawable;
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import android.view.animation.DecelerateInterpolator;
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import org.telegram.android.AndroidUtilities;
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public class MenuDrawable extends Drawable {
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private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
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private boolean reverseAngle = false;
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private long lastFrameTime;
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private boolean animationInProgress;
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private float finalRotation;
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private float currentRotation;
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private int currentAnimationTime;
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private DecelerateInterpolator interpolator = new DecelerateInterpolator();
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public MenuDrawable() {
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super();
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paint.setColor(0xffffffff);
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paint.setStrokeWidth(AndroidUtilities.dp(2));
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}
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public void setRotation(float rotation, boolean animated) {
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lastFrameTime = 0;
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if (currentRotation == 1) {
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reverseAngle = true;
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} else if (currentRotation == 0) {
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reverseAngle = false;
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}
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lastFrameTime = 0;
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if (animated) {
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if (currentRotation < rotation) {
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currentAnimationTime = (int) (currentRotation * 300);
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} else {
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currentAnimationTime = (int) ((1.0f - currentRotation) * 300);
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}
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lastFrameTime = System.currentTimeMillis();
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finalRotation = rotation;
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} else {
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finalRotation = currentRotation = rotation;
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}
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invalidateSelf();
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}
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@Override
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public void draw(Canvas canvas) {
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if (currentRotation != finalRotation) {
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if (lastFrameTime != 0) {
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long dt = System.currentTimeMillis() - lastFrameTime;
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currentAnimationTime += dt;
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if (currentAnimationTime >= 300) {
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currentRotation = finalRotation;
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} else {
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if (currentRotation < finalRotation) {
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currentRotation = interpolator.getInterpolation(currentAnimationTime / 300.0f) * finalRotation;
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} else {
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currentRotation = 1.0f - interpolator.getInterpolation(currentAnimationTime / 300.0f);
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}
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}
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}
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lastFrameTime = System.currentTimeMillis();
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invalidateSelf();
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}
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canvas.save();
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canvas.translate(getIntrinsicWidth() / 2, getIntrinsicHeight() / 2);
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canvas.rotate(currentRotation * (reverseAngle ? -180 : 180));
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canvas.drawLine(-AndroidUtilities.dp(9), 0, AndroidUtilities.dp(9) - AndroidUtilities.dp(1) * currentRotation, 0, paint);
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float endYDiff = AndroidUtilities.dp(5) * (1 - Math.abs(currentRotation)) - AndroidUtilities.dp(0.5f) * Math.abs(currentRotation);
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float endXDiff = AndroidUtilities.dp(9) - AndroidUtilities.dp(0.5f) * Math.abs(currentRotation);
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float startYDiff = AndroidUtilities.dp(5) + AndroidUtilities.dp(3.5f) * Math.abs(currentRotation);
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float startXDiff = -AndroidUtilities.dp(9) + AndroidUtilities.dp(8.5f) * Math.abs(currentRotation);
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canvas.drawLine(startXDiff, -startYDiff, endXDiff, -endYDiff, paint);
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canvas.drawLine(startXDiff, startYDiff, endXDiff, endYDiff, paint);
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canvas.restore();
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}
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@Override
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public void setAlpha(int alpha) {
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}
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@Override
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public void setColorFilter(ColorFilter cf) {
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}
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@Override
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public int getOpacity() {
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return 0;
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}
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@Override
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public int getIntrinsicWidth() {
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return AndroidUtilities.dp(24);
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}
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@Override
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public int getIntrinsicHeight() {
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return AndroidUtilities.dp(24);
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}
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}
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