DynamicGrid.java revision b38002419dcb456b51f5d320b224737f16a07088 
1/*
2 * Copyright (C) 2008 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.launcher3;
18
19import android.content.Context;
20import android.content.res.Resources;
21import android.util.DisplayMetrics;
22import android.util.TypedValue;
23
24import java.util.ArrayList;
25
26
27public class DynamicGrid {
28    @SuppressWarnings("unused")
29    private static final String TAG = "DynamicGrid";
30
31    private DeviceProfile mProfile;
32    private float mMinWidth;
33    private float mMinHeight;
34
35    // This is a static that we use for the default icon size on a 4/5-inch phone
36    static float DEFAULT_ICON_SIZE_DP = 60;
37    static float DEFAULT_ICON_SIZE_PX = 0;
38
39    public static float dpiFromPx(int size, DisplayMetrics metrics){
40        float densityRatio = (float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT;
41        return (size / densityRatio);
42    }
43    public static int pxFromDp(float size, DisplayMetrics metrics) {
44        return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
45                size, metrics));
46    }
47    public static int pxFromSp(float size, DisplayMetrics metrics) {
48        return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
49                size, metrics));
50    }
51
52    public DynamicGrid(Context context, Resources resources,
53                       int minWidthPx, int minHeightPx,
54                       int widthPx, int heightPx,
55                       int awPx, int ahPx) {
56        DisplayMetrics dm = resources.getDisplayMetrics();
57        ArrayList<DeviceProfile> deviceProfiles =
58                new ArrayList<DeviceProfile>();
59        boolean hasAA = !AppsCustomizePagedView.DISABLE_ALL_APPS;
60        DEFAULT_ICON_SIZE_PX = pxFromDp(DEFAULT_ICON_SIZE_DP, dm);
61        // Our phone profiles include the bar sizes in each orientation
62        deviceProfiles.add(new DeviceProfile("Super Short Stubby",
63                255, 300,  2, 3,  48, 13, (hasAA ? 5 : 4), 48));
64        deviceProfiles.add(new DeviceProfile("Shorter Stubby",
65                255, 400,  3, 3,  48, 13, (hasAA ? 5 : 4), 48));
66        deviceProfiles.add(new DeviceProfile("Short Stubby",
67                275, 420,  3, 4,  48, 13, (hasAA ? 5 : 4), 48));
68        deviceProfiles.add(new DeviceProfile("Stubby",
69                255, 450,  3, 4,  48, 13, (hasAA ? 5 : 4), 48));
70        deviceProfiles.add(new DeviceProfile("Nexus S",
71                296, 491.33f,  4, 4,  48, 13, (hasAA ? 5 : 4), 48));
72        deviceProfiles.add(new DeviceProfile("Nexus 4",
73                359, 518,  4, 4,  DEFAULT_ICON_SIZE_DP, 13, (hasAA ? 5 : 4), 56));
74        // The tablet profile is odd in that the landscape orientation
75        // also includes the nav bar on the side
76        deviceProfiles.add(new DeviceProfile("Nexus 7",
77                575, 904,  6, 6,  72, 14.4f,  7, 60));
78        // Larger tablet profiles always have system bars on the top & bottom
79        deviceProfiles.add(new DeviceProfile("Nexus 10",
80                727, 1207,  5, 8,  80, 14.4f,  9, 64));
81        /*
82        deviceProfiles.add(new DeviceProfile("Nexus 7",
83                600, 960,  5, 5,  72, 14.4f,  5, 60));
84        deviceProfiles.add(new DeviceProfile("Nexus 10",
85                800, 1280,  5, 5,  80, 14.4f, (hasAA ? 7 : 6), 64));
86         */
87        deviceProfiles.add(new DeviceProfile("20-inch Tablet",
88                1527, 2527,  7, 7,  100, 20,  7, 72));
89        mMinWidth = dpiFromPx(minWidthPx, dm);
90        mMinHeight = dpiFromPx(minHeightPx, dm);
91        mProfile = new DeviceProfile(context, deviceProfiles,
92                mMinWidth, mMinHeight,
93                widthPx, heightPx,
94                awPx, ahPx,
95                resources);
96    }
97
98    public DeviceProfile getDeviceProfile() {
99        return mProfile;
100    }
101
102    public String toString() {
103        return "-------- DYNAMIC GRID ------- \n" +
104                "Wd: " + mProfile.minWidthDps + ", Hd: " + mProfile.minHeightDps +
105                ", W: " + mProfile.widthPx + ", H: " + mProfile.heightPx +
106                " [r: " + mProfile.numRows + ", c: " + mProfile.numColumns +
107                ", is: " + mProfile.iconSizePx + ", its: " + mProfile.iconTextSizePx +
108                ", cw: " + mProfile.cellWidthPx + ", ch: " + mProfile.cellHeightPx +
109                ", hc: " + mProfile.numHotseatIcons + ", his: " + mProfile.hotseatIconSizePx + "]";
110    }
111}
112