mirror of
https://github.com/LawnchairLauncher/lawnchair.git
synced 2026-02-19 10:48:19 +00:00
302 lines
12 KiB
Java
302 lines
12 KiB
Java
/*
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* Copyright (C) 2015 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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package com.android.launcher3;
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import android.annotation.TargetApi;
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import android.content.Context;
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import android.graphics.Point;
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import android.util.DisplayMetrics;
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import android.view.Display;
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import android.view.WindowManager;
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import com.android.launcher3.util.Thunk;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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public class InvariantDeviceProfile {
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// This is a static that we use for the default icon size on a 4/5-inch phone
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private static float DEFAULT_ICON_SIZE_DP = 60;
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private static final float ICON_SIZE_DEFINED_IN_APP_DP = 48;
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// Constants that affects the interpolation curve between statically defined device profile
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// buckets.
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private static float KNEARESTNEIGHBOR = 3;
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private static float WEIGHT_POWER = 5;
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// used to offset float not being able to express extremely small weights in extreme cases.
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private static float WEIGHT_EFFICIENT = 100000f;
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// Profile-defining invariant properties
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String name;
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float minWidthDps;
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float minHeightDps;
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/**
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* Number of icons per row and column in the workspace.
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*/
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public int numRows;
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public int numColumns;
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/**
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* The minimum number of predicted apps in all apps.
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*/
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int minAllAppsPredictionColumns;
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/**
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* Number of icons per row and column in the folder.
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*/
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public int numFolderRows;
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public int numFolderColumns;
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public float iconSize;
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public int iconBitmapSize;
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public int fillResIconDpi;
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public float iconTextSize;
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/**
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* Number of icons inside the hotseat area.
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*/
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public int numHotseatIcons;
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float hotseatIconSize;
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int defaultLayoutId;
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// Derived invariant properties
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public int hotseatAllAppsRank;
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DeviceProfile landscapeProfile;
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DeviceProfile portraitProfile;
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InvariantDeviceProfile() {
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}
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public InvariantDeviceProfile(InvariantDeviceProfile p) {
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this(p.name, p.minWidthDps, p.minHeightDps, p.numRows, p.numColumns,
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p.numFolderRows, p.numFolderColumns, p.minAllAppsPredictionColumns,
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p.iconSize, p.iconTextSize, p.numHotseatIcons, p.hotseatIconSize,
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p.defaultLayoutId);
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}
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InvariantDeviceProfile(String n, float w, float h, int r, int c, int fr, int fc, int maapc,
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float is, float its, int hs, float his, int dlId) {
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// Ensure that we have an odd number of hotseat items (since we need to place all apps)
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if (hs % 2 == 0) {
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throw new RuntimeException("All Device Profiles must have an odd number of hotseat spaces");
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}
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name = n;
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minWidthDps = w;
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minHeightDps = h;
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numRows = r;
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numColumns = c;
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numFolderRows = fr;
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numFolderColumns = fc;
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minAllAppsPredictionColumns = maapc;
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iconSize = is;
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iconTextSize = its;
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numHotseatIcons = hs;
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hotseatIconSize = his;
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defaultLayoutId = dlId;
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}
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@TargetApi(23)
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InvariantDeviceProfile(Context context) {
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WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
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Display display = wm.getDefaultDisplay();
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DisplayMetrics dm = new DisplayMetrics();
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display.getMetrics(dm);
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Point smallestSize = new Point();
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Point largestSize = new Point();
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display.getCurrentSizeRange(smallestSize, largestSize);
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// This guarantees that width < height
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minWidthDps = Utilities.dpiFromPx(Math.min(smallestSize.x, smallestSize.y), dm);
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minHeightDps = Utilities.dpiFromPx(Math.min(largestSize.x, largestSize.y), dm);
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ArrayList<InvariantDeviceProfile> closestProfiles =
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findClosestDeviceProfiles(minWidthDps, minHeightDps, getPredefinedDeviceProfiles());
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InvariantDeviceProfile interpolatedDeviceProfileOut =
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invDistWeightedInterpolate(minWidthDps, minHeightDps, closestProfiles);
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InvariantDeviceProfile closestProfile = closestProfiles.get(0);
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numRows = closestProfile.numRows;
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numColumns = closestProfile.numColumns;
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numHotseatIcons = closestProfile.numHotseatIcons;
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hotseatAllAppsRank = (int) (numHotseatIcons / 2);
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defaultLayoutId = closestProfile.defaultLayoutId;
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numFolderRows = closestProfile.numFolderRows;
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numFolderColumns = closestProfile.numFolderColumns;
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minAllAppsPredictionColumns = closestProfile.minAllAppsPredictionColumns;
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iconSize = interpolatedDeviceProfileOut.iconSize;
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iconBitmapSize = Utilities.pxFromDp(iconSize, dm);
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iconTextSize = interpolatedDeviceProfileOut.iconTextSize;
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hotseatIconSize = interpolatedDeviceProfileOut.hotseatIconSize;
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fillResIconDpi = getLauncherIconDensity(iconBitmapSize);
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// If the partner customization apk contains any grid overrides, apply them
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// Supported overrides: numRows, numColumns, iconSize
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applyPartnerDeviceProfileOverrides(context, dm);
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Point realSize = new Point();
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display.getRealSize(realSize);
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// The real size never changes. smallSide and largeSide will remain the
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// same in any orientation.
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int smallSide = Math.min(realSize.x, realSize.y);
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int largeSide = Math.max(realSize.x, realSize.y);
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landscapeProfile = new DeviceProfile(context, this, smallestSize, largestSize,
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largeSide, smallSide, true /* isLandscape */);
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portraitProfile = new DeviceProfile(context, this, smallestSize, largestSize,
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smallSide, largeSide, false /* isLandscape */);
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}
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ArrayList<InvariantDeviceProfile> getPredefinedDeviceProfiles() {
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ArrayList<InvariantDeviceProfile> predefinedDeviceProfiles = new ArrayList<>();
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// width, height, #rows, #columns, #folder rows, #folder columns,
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// iconSize, iconTextSize, #hotseat, #hotseatIconSize, defaultLayoutId.
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Super Short Stubby",
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255, 300, 2, 3, 2, 3, 3, 48, 13, 3, 48, R.xml.default_workspace_3x3));
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Shorter Stubby",
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255, 400, 3, 3, 3, 3, 3, 48, 13, 3, 48, R.xml.default_workspace_3x3));
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Short Stubby",
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275, 420, 3, 4, 3, 4, 4, 48, 13, 5, 48, R.xml.default_workspace_4x4));
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Stubby",
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255, 450, 3, 4, 3, 4, 4, 48, 13, 5, 48, R.xml.default_workspace_4x4));
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus S",
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296, 491.33f, 4, 4, 4, 4, 4, 48, 13, 5, 48, R.xml.default_workspace_4x4));
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 4",
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359, 567, 4, 4, 4, 4, 4, DEFAULT_ICON_SIZE_DP, 13, 5, 56, R.xml.default_workspace_4x4));
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 5",
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335, 567, 4, 4, 4, 4, 4, DEFAULT_ICON_SIZE_DP, 13, 5, 56, R.xml.default_workspace_4x4));
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Large Phone",
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406, 694, 5, 5, 4, 4, 4, 64, 14.4f, 5, 56, R.xml.default_workspace_5x5));
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// The tablet profile is odd in that the landscape orientation
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// also includes the nav bar on the side
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 7",
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575, 904, 5, 6, 4, 5, 4, 72, 14.4f, 7, 60, R.xml.default_workspace_5x6));
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// Larger tablet profiles always have system bars on the top & bottom
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 10",
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727, 1207, 5, 6, 4, 5, 4, 76, 14.4f, 7, 76, R.xml.default_workspace_5x6));
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predefinedDeviceProfiles.add(new InvariantDeviceProfile("20-inch Tablet",
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1527, 2527, 7, 7, 6, 6, 4, 100, 20, 7, 72, R.xml.default_workspace_5x6));
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return predefinedDeviceProfiles;
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}
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private int getLauncherIconDensity(int requiredSize) {
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// Densities typically defined by an app.
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int[] densityBuckets = new int[] {
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DisplayMetrics.DENSITY_LOW,
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DisplayMetrics.DENSITY_MEDIUM,
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DisplayMetrics.DENSITY_TV,
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DisplayMetrics.DENSITY_HIGH,
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DisplayMetrics.DENSITY_XHIGH,
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DisplayMetrics.DENSITY_XXHIGH,
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DisplayMetrics.DENSITY_XXXHIGH
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};
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int density = DisplayMetrics.DENSITY_XXXHIGH;
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for (int i = densityBuckets.length - 1; i >= 0; i--) {
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float expectedSize = ICON_SIZE_DEFINED_IN_APP_DP * densityBuckets[i]
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/ DisplayMetrics.DENSITY_DEFAULT;
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if (expectedSize >= requiredSize) {
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density = densityBuckets[i];
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}
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}
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return density;
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}
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/**
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* Apply any Partner customization grid overrides.
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*
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* Currently we support: all apps row / column count.
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*/
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private void applyPartnerDeviceProfileOverrides(Context context, DisplayMetrics dm) {
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Partner p = Partner.get(context.getPackageManager());
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if (p != null) {
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p.applyInvariantDeviceProfileOverrides(this, dm);
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}
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}
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@Thunk float dist(float x0, float y0, float x1, float y1) {
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return (float) Math.hypot(x1 - x0, y1 - y0);
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}
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/**
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* Returns the closest device profiles ordered by closeness to the specified width and height
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*/
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// Package private visibility for testing.
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ArrayList<InvariantDeviceProfile> findClosestDeviceProfiles(
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final float width, final float height, ArrayList<InvariantDeviceProfile> points) {
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// Sort the profiles by their closeness to the dimensions
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ArrayList<InvariantDeviceProfile> pointsByNearness = points;
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Collections.sort(pointsByNearness, new Comparator<InvariantDeviceProfile>() {
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public int compare(InvariantDeviceProfile a, InvariantDeviceProfile b) {
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return Float.compare(dist(width, height, a.minWidthDps, a.minHeightDps),
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dist(width, height, b.minWidthDps, b.minHeightDps));
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}
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});
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return pointsByNearness;
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}
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// Package private visibility for testing.
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InvariantDeviceProfile invDistWeightedInterpolate(float width, float height,
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ArrayList<InvariantDeviceProfile> points) {
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float weights = 0;
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InvariantDeviceProfile p = points.get(0);
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if (dist(width, height, p.minWidthDps, p.minHeightDps) == 0) {
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return p;
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}
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InvariantDeviceProfile out = new InvariantDeviceProfile();
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for (int i = 0; i < points.size() && i < KNEARESTNEIGHBOR; ++i) {
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p = new InvariantDeviceProfile(points.get(i));
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float w = weight(width, height, p.minWidthDps, p.minHeightDps, WEIGHT_POWER);
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weights += w;
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out.add(p.multiply(w));
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}
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return out.multiply(1.0f/weights);
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}
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private void add(InvariantDeviceProfile p) {
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iconSize += p.iconSize;
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iconTextSize += p.iconTextSize;
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hotseatIconSize += p.hotseatIconSize;
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}
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private InvariantDeviceProfile multiply(float w) {
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iconSize *= w;
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iconTextSize *= w;
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hotseatIconSize *= w;
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return this;
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}
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private float weight(float x0, float y0, float x1, float y1, float pow) {
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float d = dist(x0, y0, x1, y1);
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if (Float.compare(d, 0f) == 0) {
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return Float.POSITIVE_INFINITY;
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}
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return (float) (WEIGHT_EFFICIENT / Math.pow(d, pow));
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}
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} |