mirror of
https://github.com/LawnchairLauncher/lawnchair.git
synced 2026-03-04 01:46:49 +00:00
417 lines
16 KiB
Java
417 lines
16 KiB
Java
/*);
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* Copyright (C) 2011 The Android Open Source Project
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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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// TODO:
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// background stellar matter:
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// - add some slow horizontal parallax motion, or perhaps veeeeery gradual outward drift
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package com.android.launcher2;
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import android.animation.AnimatorSet;
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import android.animation.TimeAnimator;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.graphics.Bitmap;
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import android.graphics.Point;
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import android.graphics.Rect;
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import android.os.Handler;
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import android.support.v13.dreams.BasicDream;
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import android.util.AttributeSet;
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import android.util.DisplayMetrics;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.FrameLayout;
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import android.widget.ImageView;
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import com.android.launcher.R;
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import java.util.HashMap;
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import java.util.Random;
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public class RocketLauncher extends BasicDream {
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public static final boolean ROCKET_LAUNCHER = true;
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public static class Board extends FrameLayout
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{
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public static final boolean FIXED_STARS = true;
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public static final boolean FLYING_STARS = true;
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public static final int NUM_ICONS = 20;
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public static final float MANEUVERING_THRUST_SCALE = 0.1f; // tenth speed
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private boolean mManeuveringThrusters = false;
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private float mSpeedScale = 1.0f;
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public static final int LAUNCH_ZOOM_TIME = 400; // ms
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HashMap<ComponentName, Bitmap> mIcons;
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ComponentName[] mComponentNames;
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static Random sRNG = new Random();
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static float lerp(float a, float b, float f) {
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return (b-a)*f + a;
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}
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static float randfrange(float a, float b) {
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return lerp(a, b, sRNG.nextFloat());
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}
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static int randsign() {
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return sRNG.nextBoolean() ? 1 : -1;
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}
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static <E> E pick(E[] array) {
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if (array.length == 0) return null;
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return array[sRNG.nextInt(array.length)];
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}
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public class FlyingIcon extends ImageView {
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public static final float VMAX = 1000.0f;
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public static final float VMIN = 100.0f;
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public static final float ANGULAR_VMAX = 45f;
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public static final float ANGULAR_VMIN = 0f;
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public static final float SCALE_MIN = 0.5f;
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public static final float SCALE_MAX = 4f;
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public float v, vr;
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public final float[] hsv = new float[3];
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public float angle, anglex, angley;
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public float fuse;
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public float dist;
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public float endscale;
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public float boardCenterX, boardCenterY;
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public ComponentName component;
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public FlyingIcon(Context context, AttributeSet as) {
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super(context, as);
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setLayerType(View.LAYER_TYPE_HARDWARE, null);
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setBackgroundResource(R.drawable.flying_icon_bg);
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//android.util.Log.d("RocketLauncher", "ctor: " + this);
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hsv[1] = 1f;
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hsv[2] = 1f;
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}
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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if (!mManeuveringThrusters || component == null) {
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return false;
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}
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if (getAlpha() < 0.5f) {
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setPressed(false);
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return false;
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}
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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setPressed(true);
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Board.this.resetWarpTimer();
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break;
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case MotionEvent.ACTION_MOVE:
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final Rect hit = new Rect();
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final Point offset = new Point();
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getGlobalVisibleRect(hit, offset);
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final int globx = (int) event.getX() + offset.x;
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final int globy = (int) event.getY() + offset.y;
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setPressed(hit.contains(globx, globy));
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Board.this.resetWarpTimer();
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break;
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case MotionEvent.ACTION_UP:
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if (isPressed()) {
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setPressed(false);
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postDelayed(new Runnable() {
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public void run() {
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try {
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getContext().startActivity(new Intent(Intent.ACTION_MAIN)
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.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
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.setComponent(component));
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} catch (android.content.ActivityNotFoundException e) {
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} catch (SecurityException e) {
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}
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}
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}, LAUNCH_ZOOM_TIME);
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endscale = 0;
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AnimatorSet s = LauncherAnimUtils.createAnimatorSet();
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s.playTogether(
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LauncherAnimUtils.ofFloat(this, "scaleX", 15f),
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LauncherAnimUtils.ofFloat(this, "scaleY", 15f),
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LauncherAnimUtils.ofFloat(this, "alpha", 0f)
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);
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// make sure things are still moving until the very last instant the
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// activity is visible
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s.setDuration((int)(LAUNCH_ZOOM_TIME * 1.25));
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s.setInterpolator(new android.view.animation.AccelerateInterpolator(3));
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s.start();
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}
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break;
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}
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return true;
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}
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public String toString() {
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return String.format("<'%s' @ (%.1f, %.1f) v=%.1f a=%.1f dist/fuse=%.1f/%.1f>",
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"icon", getX(), getY(), v, angle, dist, fuse);
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}
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public void randomizeIcon() {
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component = pick(mComponentNames);
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setImageBitmap(mIcons.get(component));
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}
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public void randomize() {
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v = randfrange(VMIN, VMAX);
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angle = randfrange(0, 360f);
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anglex = (float) Math.sin(angle / 180. * Math.PI);
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angley = (float) Math.cos(angle / 180. * Math.PI);
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vr = randfrange(ANGULAR_VMIN, ANGULAR_VMAX) * randsign();
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endscale = randfrange(SCALE_MIN, SCALE_MAX);
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randomizeIcon();
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}
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public void reset() {
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randomize();
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boardCenterX = (Board.this.getWidth() - getWidth()) / 2;
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boardCenterY = (Board.this.getHeight() - getHeight()) / 2;
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setX(boardCenterX);
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setY(boardCenterY);
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fuse = (float) Math.max(boardCenterX, boardCenterY);
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setRotation(180-angle);
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setScaleX(0f);
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setScaleY(0f);
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dist = 0;
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setAlpha(0f);
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}
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public void update(float dt) {
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dist += v * dt;
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setX(getX() + anglex * v * dt);
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setY(getY() + angley * v * dt);
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//setRotation(getRotation() + vr * dt);
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if (endscale > 0) {
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float scale = lerp(0, endscale, (float) Math.sqrt(dist / fuse));
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setScaleX(scale * lerp(1f, 0.75f, (float) Math.pow((v-VMIN)/(VMAX-VMIN),3)));
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setScaleY(scale * lerp(1f, 1.5f, (float) Math.pow((v-VMIN)/(VMAX-VMIN),3)));
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final float q1 = fuse*0.15f;
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final float q4 = fuse*0.75f;
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if (dist < q1) {
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setAlpha((float) Math.sqrt(dist/q1));
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} else if (dist > q4) {
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setAlpha((dist >= fuse) ? 0f : (1f-(float)Math.pow((dist-q4)/(fuse-q4),2)));
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} else {
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setAlpha(1f);
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}
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}
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}
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}
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public class FlyingStar extends FlyingIcon {
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public FlyingStar(Context context, AttributeSet as) {
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super(context, as);
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}
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public void randomizeIcon() {
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setImageResource(R.drawable.widget_resize_handle_bottom);
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}
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public void randomize() {
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super.randomize();
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v = randfrange(VMAX*0.75f, VMAX*2f); // fasticate
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endscale = randfrange(1f, 2f); // ensmallen
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}
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}
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TimeAnimator mAnim;
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public Board(Context context, AttributeSet as) {
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super(context, as);
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setBackgroundColor(0xFF000000);
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LauncherApplication app = (LauncherApplication)context.getApplicationContext();
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mIcons = app.getIconCache().getAllIcons();
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mComponentNames = new ComponentName[mIcons.size()];
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mComponentNames = mIcons.keySet().toArray(mComponentNames);
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}
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private void reset() {
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removeAllViews();
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final ViewGroup.LayoutParams wrap = new ViewGroup.LayoutParams(
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ViewGroup.LayoutParams.WRAP_CONTENT,
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ViewGroup.LayoutParams.WRAP_CONTENT);
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if (FIXED_STARS) {
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for(int i=0; i<20; i++) {
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ImageView fixedStar = new ImageView(getContext(), null);
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fixedStar.setImageResource(R.drawable.widget_resize_handle_bottom);
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final float s = randfrange(0.25f, 0.75f);
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fixedStar.setScaleX(s);
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fixedStar.setScaleY(s);
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fixedStar.setAlpha(0.75f);
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addView(fixedStar, wrap);
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fixedStar.setX(randfrange(0, getWidth()));
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fixedStar.setY(randfrange(0, getHeight()));
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}
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}
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for(int i=0; i<NUM_ICONS*2; i++) {
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FlyingIcon nv = (FLYING_STARS && (i < NUM_ICONS))
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? new FlyingStar(getContext(), null)
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: new FlyingIcon(getContext(), null);
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addView(nv, wrap);
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nv.reset();
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}
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mAnim = new TimeAnimator();
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mAnim.setTimeListener(new TimeAnimator.TimeListener() {
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public void onTimeUpdate(TimeAnimator animation, long totalTime, long deltaTime) {
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// setRotation(totalTime * 0.01f); // not as cool as you would think
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final int START_ZOOM_TIME = 3000;
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if (totalTime < START_ZOOM_TIME) {
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final float x = totalTime/(float)START_ZOOM_TIME;
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final float s = 1f-(float)Math.pow(x-1, 4);
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setScaleX(s); setScaleY(s);
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} else {
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setScaleX(1.0f); setScaleY(1.0f);
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}
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if (mManeuveringThrusters) {
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if (mSpeedScale > MANEUVERING_THRUST_SCALE) {
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mSpeedScale -= (2*deltaTime/1000f);
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}
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if (mSpeedScale < MANEUVERING_THRUST_SCALE) {
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mSpeedScale = MANEUVERING_THRUST_SCALE;
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}
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} else {
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if (mSpeedScale < 1.0f) {
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mSpeedScale += (deltaTime/1000f);
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}
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if (mSpeedScale > 1.0f) {
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mSpeedScale = 1.0f;
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}
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}
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for (int i=0; i<getChildCount(); i++) {
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View v = getChildAt(i);
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if (!(v instanceof FlyingIcon)) continue;
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FlyingIcon nv = (FlyingIcon) v;
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nv.update(deltaTime / 1000f * mSpeedScale);
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final float scaledWidth = nv.getWidth() * nv.getScaleX();
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final float scaledHeight = nv.getHeight() * nv.getScaleY();
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if ( nv.getX() + scaledWidth < 0
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|| nv.getX() - scaledWidth > getWidth()
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|| nv.getY() + scaledHeight < 0
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|| nv.getY() - scaledHeight > getHeight())
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{
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nv.reset();
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}
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}
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}
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});
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}
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@Override
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protected void onAttachedToWindow() {
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super.onAttachedToWindow();
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setLayerType(View.LAYER_TYPE_HARDWARE, null);
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setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);
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reset();
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mAnim.start();
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}
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protected void onSizeChanged (int w, int h, int oldw, int oldh) {
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super.onSizeChanged(w,h,oldw,oldh);
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mAnim.cancel();
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reset();
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mAnim.start();
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}
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@Override
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protected void onDetachedFromWindow() {
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super.onDetachedFromWindow();
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mAnim.cancel();
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}
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@Override
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public boolean isOpaque() {
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return true;
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}
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@Override
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public boolean onInterceptTouchEvent(MotionEvent e) {
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// we want to eat touch events ourselves if we're in warp speed
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return (!(ROCKET_LAUNCHER && mManeuveringThrusters));
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}
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final Runnable mEngageWarp = new Runnable() {
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@Override
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public void run() {
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mManeuveringThrusters = false;
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}
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};
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public void resetWarpTimer() {
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final Handler h = getHandler();
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h.removeCallbacks(mEngageWarp);
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h.postDelayed(mEngageWarp, 5000);
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}
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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if (!ROCKET_LAUNCHER) {
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return true;
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}
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if (event.getAction() == MotionEvent.ACTION_DOWN) {
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if (!mManeuveringThrusters) {
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mManeuveringThrusters = true;
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resetWarpTimer();
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return true;
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}
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}
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return false;
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}
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}
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@Override
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public void onStart() {
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super.onStart();
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DisplayMetrics metrics = new DisplayMetrics();
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getWindowManager().getDefaultDisplay().getMetrics(metrics);
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final int longside = metrics.widthPixels > metrics.heightPixels
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? metrics.widthPixels : metrics.heightPixels;
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Board b = new Board(this, null);
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setContentView(b, new ViewGroup.LayoutParams(longside, longside));
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b.setX((metrics.widthPixels - longside) / 2);
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b.setY((metrics.heightPixels - longside) / 2);
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}
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@Override
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public void onUserInteraction() {
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if (!ROCKET_LAUNCHER) {
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finish();
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}
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}
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}
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