RecentsConfiguration.java revision 6736905dc0e10689f7c63f6da43b31325caf966a 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.systemui.recents;
18
19import android.content.Context;
20import android.content.res.Configuration;
21import android.content.res.Resources;
22import android.graphics.Rect;
23import android.util.DisplayMetrics;
24import android.util.TypedValue;
25import com.android.systemui.R;
26
27
28/** A static Recents configuration for the current context
29 * NOTE: We should not hold any references to a Context from a static instance */
30public class RecentsConfiguration {
31    static RecentsConfiguration sInstance;
32
33    DisplayMetrics mDisplayMetrics;
34
35    public Rect systemInsets = new Rect();
36    public Rect displayRect = new Rect();
37
38    public float animationPxMovementPerSecond;
39
40    public int filteringCurrentViewsMinAnimDuration;
41    public int filteringNewViewsMinAnimDuration;
42
43    /** Private constructor */
44    private RecentsConfiguration() {}
45
46    /** Updates the configuration to the current context */
47    public static RecentsConfiguration reinitialize(Context context) {
48        if (sInstance == null) {
49            sInstance = new RecentsConfiguration();
50        }
51        sInstance.update(context);
52        return sInstance;
53    }
54
55    /** Returns the current recents configuration */
56    public static RecentsConfiguration getInstance() {
57        return sInstance;
58    }
59
60    /** Updates the state, given the specified context */
61    void update(Context context) {
62        Resources res = context.getResources();
63        DisplayMetrics dm = res.getDisplayMetrics();
64        mDisplayMetrics = dm;
65
66        boolean isLandscape = res.getConfiguration().orientation ==
67                Configuration.ORIENTATION_LANDSCAPE;
68        Console.log(Constants.DebugFlags.UI.MeasureAndLayout,
69                "[RecentsConfiguration|orientation]", isLandscape ? "Landscape" : "Portrait",
70                Console.AnsiGreen);
71
72        displayRect.set(0, 0, dm.widthPixels, dm.heightPixels);
73        animationPxMovementPerSecond =
74                res.getDimensionPixelSize(R.dimen.recents_animation_movement_in_dps_per_second);
75        filteringCurrentViewsMinAnimDuration =
76                res.getInteger(R.integer.recents_filter_animate_current_views_min_duration);
77        filteringNewViewsMinAnimDuration =
78                res.getInteger(R.integer.recents_filter_animate_new_views_min_duration);
79    }
80
81    public void updateSystemInsets(Rect insets) {
82        systemInsets.set(insets);
83    }
84
85    /** Converts from DPs to PXs */
86    public int pxFromDp(float size) {
87        return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
88                size, mDisplayMetrics));
89    }
90    /** Converts from SPs to PXs */
91    public int pxFromSp(float size) {
92        return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
93                size, mDisplayMetrics));
94    }
95}
96