android: Remove DeviceDisplayInfo

ui/android/java/src/org/chromium/ui/gfx/DeviceDisplayInfo.java

-// Copyright 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.ui.gfx;
-
-import android.annotation.TargetApi;
-import android.content.Context;
-import android.graphics.PixelFormat;
-import android.graphics.Point;
-import android.os.Build;
-import android.util.DisplayMetrics;
-import android.view.Display;
-import android.view.Surface;
-import android.view.WindowManager;
-
-import org.chromium.base.annotations.CalledByNative;
-import org.chromium.base.annotations.JNINamespace;
-import org.chromium.base.annotations.MainDex;
-
-/**
- * This class facilitates access to android information typically only
- * available using the Java SDK, including {@link Display} properties.
- *
- * Currently the information consists of very raw display information (height, width, DPI scale)
- * regarding the main display.
- *
- * This class is being Deprecated. Use DisplayAndroid instead where possible.
- */
-@JNINamespace("gfx")
-@MainDex
-public class DeviceDisplayInfo {
-
-    private final Context mAppContext;
-    private final WindowManager mWinManager;
-    private Point mTempPoint = new Point();
-    private DisplayMetrics mTempMetrics = new DisplayMetrics();
-
-    private DeviceDisplayInfo(Context context) {
-        mAppContext = context.getApplicationContext();
-        mWinManager = (WindowManager) mAppContext.getSystemService(Context.WINDOW_SERVICE);
-    }
-
-    /**
-     * @return Display height in physical pixels.
-     */
-    @CalledByNative
-    public int getDisplayHeight() {
-        getDisplay().getSize(mTempPoint);
-        return mTempPoint.y;
-    }
-
-    /**
-     * @return Display width in physical pixels.
-     */
-    @CalledByNative
-    public int getDisplayWidth() {
-        getDisplay().getSize(mTempPoint);
-        return mTempPoint.x;
-    }
-
-    /**
-     * @return Real physical display height in physical pixels.
-     */
-    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
-    @CalledByNative
-    public int getPhysicalDisplayHeight() {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            return 0;
-        }
-        getDisplay().getRealSize(mTempPoint);
-        return mTempPoint.y;
-    }
-
-    /**
-     * @return Real physical display width in physical pixels.
-     */
-    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
-    @CalledByNative
-    public int getPhysicalDisplayWidth() {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            return 0;
-        }
-        getDisplay().getRealSize(mTempPoint);
-        return mTempPoint.x;
-    }
-
-    @SuppressWarnings("deprecation")
-    private int getPixelFormat() {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
-            return getDisplay().getPixelFormat();
-        }
-        // JellyBean MR1 and later always uses RGBA_8888.
-        return PixelFormat.RGBA_8888;
-    }
-
-    /**
-     * @return Bits per pixel.
-     */
-    @CalledByNative
-    private int getBitsPerPixel() {
-        int format = getPixelFormat();
-        PixelFormat info = new PixelFormat();
-        PixelFormat.getPixelFormatInfo(format, info);
-        return info.bitsPerPixel;
-    }
-
-    /**
-     * @return Bits per component.
-     */
-    @SuppressWarnings("deprecation")
-    @CalledByNative
-    private int getBitsPerComponent() {
-        int format = getPixelFormat();
-        switch (format) {
-            case PixelFormat.RGBA_4444:
-                return 4;
-
-            case PixelFormat.RGBA_5551:
-                return 5;
-
-            case PixelFormat.RGBA_8888:
-            case PixelFormat.RGBX_8888:
-            case PixelFormat.RGB_888:
-                return 8;
-
-            case PixelFormat.RGB_332:
-                return 2;
-
-            case PixelFormat.RGB_565:
-                return 5;
-
-            // Non-RGB formats.
-            case PixelFormat.A_8:
-            case PixelFormat.LA_88:
-            case PixelFormat.L_8:
-                return 0;
-
-            // Unknown format. Use 8 as a sensible default.
-            default:
-                return 8;
-        }
-    }
-
-    /**
-     * @return A scaling factor for the Density Independent Pixel unit. 1.0 is
-     *         160dpi, 0.75 is 120dpi, 2.0 is 320dpi.
-     */
-    @CalledByNative
-    public double getDIPScale() {
-        getDisplay().getMetrics(mTempMetrics);
-        return mTempMetrics.density;
-    }
-
-    /**
-     * @return Smallest screen size in density-independent pixels that the
-     *         application will see, regardless of orientation.
-     */
-    @CalledByNative
-    private int getSmallestDIPWidth() {
-        return mAppContext.getResources().getConfiguration().smallestScreenWidthDp;
-    }
-
-    /**
-     * @return the screen's rotation angle from its 'natural' orientation.
-     * Expected values are one of { 0, 90, 180, 270 }.
-     * See http://developer.android.com/reference/android/view/Display.html#getRotation()
-     * for more information about Display.getRotation() behavior.
-     */
-    @CalledByNative
-    public int getRotationDegrees() {
-        switch (getDisplay().getRotation()) {
-            case Surface.ROTATION_0:
-                return 0;
-            case Surface.ROTATION_90:
-                return 90;
-            case Surface.ROTATION_180:
-                return 180;
-            case Surface.ROTATION_270:
-                return 270;
-        }
-
-        // This should not happen.
-        assert false;
-        return 0;
-    }
-
-    /**
-     * Inform the native implementation to update its cached representation of
-     * the DeviceDisplayInfo values.
-     */
-    public void updateNativeSharedDisplayInfo() {
-        nativeUpdateSharedDeviceDisplayInfo(
-                getDisplayHeight(), getDisplayWidth(),
-                getPhysicalDisplayHeight(), getPhysicalDisplayWidth(),
-                getBitsPerPixel(), getBitsPerComponent(),
-                getDIPScale(), getSmallestDIPWidth(), getRotationDegrees());
-    }
-
-    private Display getDisplay() {
-        return mWinManager.getDefaultDisplay();
-    }
-
-    /**
-     * Creates DeviceDisplayInfo for a given Context.
-     *
-     * @param context A context to use.
-     * @return DeviceDisplayInfo associated with a given Context.
-     */
-    @CalledByNative
-    public static DeviceDisplayInfo create(Context context) {
-        return new DeviceDisplayInfo(context);
-    }
-
-    private native void nativeUpdateSharedDeviceDisplayInfo(
-            int displayHeight, int displayWidth,
-            int physicalDisplayHeight, int physicalDisplayWidth,
-            int bitsPerPixel, int bitsPerComponent, double dipScale,
-            int smallestDIPWidth, int rotationDegrees);
-
-}