dde331cebd
Preloaded drawables now have a density associated with them, so we can load the correct drawable if we are using a different density. Window manager now formally keeps track of the density for each screen, allowing it to be overridden like you can already do with size, and relies on this density to drive itself internally and the configurations it reports. There are a new set of Bitmap constructors where you provide a DisplayMetrics so they can be constructed with the correct density. (This will be for when you can have different windows in the same app running at different densities.) ActivityThread now watches for density changes, and pushes them to the DENSITY_DEVICE and Bitmap global density values for that process. A new am command allows you to change the density.
109 lines
4.0 KiB
Java
109 lines
4.0 KiB
Java
/*
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* Copyright (C) 2012 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.server.wm;
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import android.view.DisplayInfo;
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import com.android.server.display.DisplayManagerService;
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import java.io.PrintWriter;
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import java.util.ArrayList;
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class DisplayContentList extends ArrayList<DisplayContent> {
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}
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/**
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* Utility class for keeping track of the WindowStates and other pertinent contents of a
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* particular Display.
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*
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* IMPORTANT: No method from this class should ever be used without holding
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* WindowManagerService.mWindowMap.
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*/
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class DisplayContent {
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/** Unique identifier of this stack. */
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private final int mDisplayId;
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/** Z-ordered (bottom-most first) list of all Window objects. Assigned to an element
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* from mDisplayWindows; */
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private WindowList mWindows = new WindowList();
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// This protects the following display size properties, so that
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// getDisplaySize() doesn't need to acquire the global lock. This is
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// needed because the window manager sometimes needs to use ActivityThread
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// while it has its global state locked (for example to load animation
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// resources), but the ActivityThread also needs get the current display
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// size sometimes when it has its package lock held.
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//
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// These will only be modified with both mWindowMap and mDisplaySizeLock
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// held (in that order) so the window manager doesn't need to acquire this
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// lock when needing these values in its normal operation.
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final Object mDisplaySizeLock = new Object();
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int mInitialDisplayWidth = 0;
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int mInitialDisplayHeight = 0;
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int mInitialDisplayDensity = 0;
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int mBaseDisplayWidth = 0;
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int mBaseDisplayHeight = 0;
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int mBaseDisplayDensity = 0;
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final DisplayManagerService mDisplayManager;
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final DisplayInfo mDisplayInfo = new DisplayInfo();
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DisplayContent(DisplayManagerService displayManager, final int displayId) {
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mDisplayManager = displayManager;
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mDisplayId = displayId;
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displayManager.getDisplayInfo(displayId, mDisplayInfo);
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}
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int getDisplayId() {
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return mDisplayId;
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}
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WindowList getWindowList() {
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return mWindows;
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}
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DisplayInfo getDisplayInfo() {
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return mDisplayInfo;
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}
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public void dump(PrintWriter pw) {
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pw.print(" Display: mDisplayId="); pw.println(mDisplayId);
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pw.print(" init="); pw.print(mInitialDisplayWidth); pw.print("x");
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pw.print(mInitialDisplayHeight); pw.print(" "); pw.print(mInitialDisplayDensity);
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pw.print("dpi");
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if (mInitialDisplayWidth != mBaseDisplayWidth
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|| mInitialDisplayHeight != mBaseDisplayHeight
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|| mInitialDisplayDensity != mBaseDisplayDensity) {
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pw.print(" base=");
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pw.print(mBaseDisplayWidth); pw.print("x"); pw.print(mBaseDisplayHeight);
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pw.print(" "); pw.print(mBaseDisplayDensity); pw.print("dpi");
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}
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pw.print(" cur=");
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pw.print(mDisplayInfo.logicalWidth);
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pw.print("x"); pw.print(mDisplayInfo.logicalHeight);
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pw.print(" app=");
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pw.print(mDisplayInfo.appWidth);
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pw.print("x"); pw.print(mDisplayInfo.appHeight);
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pw.print(" rng="); pw.print(mDisplayInfo.smallestNominalAppWidth);
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pw.print("x"); pw.print(mDisplayInfo.smallestNominalAppHeight);
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pw.print("-"); pw.print(mDisplayInfo.largestNominalAppWidth);
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pw.print("x"); pw.println(mDisplayInfo.largestNominalAppHeight);
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pw.println();
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}
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}
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