From b50b5cbfbc0a67db6fc43373363b10381c9c61a3 Mon Sep 17 00:00:00 2001 From: Angus Kong Date: Fri, 9 Aug 2013 14:55:20 -0700 Subject: Clean up Gallery codes. bug:10263696 Change-Id: I3a16dba3aabe52b8103a2c591cfa39907265a263 --- src/com/android/camera/support/common/Utils.java | 325 ----------------------- 1 file changed, 325 deletions(-) delete mode 100644 src/com/android/camera/support/common/Utils.java (limited to 'src/com/android/camera/support/common/Utils.java') diff --git a/src/com/android/camera/support/common/Utils.java b/src/com/android/camera/support/common/Utils.java deleted file mode 100644 index f36d6adcd..000000000 --- a/src/com/android/camera/support/common/Utils.java +++ /dev/null @@ -1,325 +0,0 @@ -package com.android.camera.support.common; - - -import android.content.Context; -import android.content.pm.PackageInfo; -import android.content.pm.PackageManager.NameNotFoundException; -import android.database.Cursor; -import android.os.Build; -import android.os.ParcelFileDescriptor; -import android.text.TextUtils; -import android.util.Log; - -import java.io.Closeable; -import java.io.IOException; -import java.io.InterruptedIOException; - -public class Utils { - private static final String TAG = "Utils"; - private static final String DEBUG_TAG = "GalleryDebug"; - - private static final long POLY64REV = 0x95AC9329AC4BC9B5L; - private static final long INITIALCRC = 0xFFFFFFFFFFFFFFFFL; - - private static long[] sCrcTable = new long[256]; - - private static final boolean IS_DEBUG_BUILD = - Build.TYPE.equals("eng") || Build.TYPE.equals("userdebug"); - - private static final String MASK_STRING = "********************************"; - - // Throws AssertionError if the input is false. - public static void assertTrue(boolean cond) { - if (!cond) { - throw new AssertionError(); - } - } - - // Throws AssertionError with the message. We had a method having the form - // assertTrue(boolean cond, String message, Object ... args); - // However a call to that method will cause memory allocation even if the - // condition is false (due to autoboxing generated by "Object ... args"), - // so we don't use that anymore. - public static void fail(String message, Object ... args) { - throw new AssertionError( - args.length == 0 ? message : String.format(message, args)); - } - - // Throws NullPointerException if the input is null. - public static T checkNotNull(T object) { - if (object == null) throw new NullPointerException(); - return object; - } - - // Returns true if two input Object are both null or equal - // to each other. - public static boolean equals(Object a, Object b) { - return (a == b) || (a == null ? false : a.equals(b)); - } - - // Returns the next power of two. - // Returns the input if it is already power of 2. - // Throws IllegalArgumentException if the input is <= 0 or - // the answer overflows. - public static int nextPowerOf2(int n) { - if (n <= 0 || n > (1 << 30)) throw new IllegalArgumentException("n is invalid: " + n); - n -= 1; - n |= n >> 16; - n |= n >> 8; - n |= n >> 4; - n |= n >> 2; - n |= n >> 1; - return n + 1; - } - - // Returns the previous power of two. - // Returns the input if it is already power of 2. - // Throws IllegalArgumentException if the input is <= 0 - public static int prevPowerOf2(int n) { - if (n <= 0) throw new IllegalArgumentException(); - return Integer.highestOneBit(n); - } - - // Returns the input value x clamped to the range [min, max]. - public static int clamp(int x, int min, int max) { - if (x > max) return max; - if (x < min) return min; - return x; - } - - // Returns the input value x clamped to the range [min, max]. - public static float clamp(float x, float min, float max) { - if (x > max) return max; - if (x < min) return min; - return x; - } - - // Returns the input value x clamped to the range [min, max]. - public static long clamp(long x, long min, long max) { - if (x > max) return max; - if (x < min) return min; - return x; - } - - public static boolean isOpaque(int color) { - return color >>> 24 == 0xFF; - } - - public static void swap(int[] array, int i, int j) { - int temp = array[i]; - array[i] = array[j]; - array[j] = temp; - } - - /** - * A function thats returns a 64-bit crc for string - * - * @param in input string - * @return a 64-bit crc value - */ - public static final long crc64Long(String in) { - if (in == null || in.length() == 0) { - return 0; - } - return crc64Long(getBytes(in)); - } - - static { - // http://bioinf.cs.ucl.ac.uk/downloads/crc64/crc64.c - long part; - for (int i = 0; i < 256; i++) { - part = i; - for (int j = 0; j < 8; j++) { - long x = ((int) part & 1) != 0 ? POLY64REV : 0; - part = (part >> 1) ^ x; - } - sCrcTable[i] = part; - } - } - - public static final long crc64Long(byte[] buffer) { - long crc = INITIALCRC; - for (int k = 0, n = buffer.length; k < n; ++k) { - crc = sCrcTable[(((int) crc) ^ buffer[k]) & 0xff] ^ (crc >> 8); - } - return crc; - } - - public static byte[] getBytes(String in) { - byte[] result = new byte[in.length() * 2]; - int output = 0; - for (char ch : in.toCharArray()) { - result[output++] = (byte) (ch & 0xFF); - result[output++] = (byte) (ch >> 8); - } - return result; - } - - public static void closeSilently(Closeable c) { - if (c == null) return; - try { - c.close(); - } catch (IOException t) { - Log.w(TAG, "close fail ", t); - } - } - - public static int compare(long a, long b) { - return a < b ? -1 : a == b ? 0 : 1; - } - - public static int ceilLog2(float value) { - int i; - for (i = 0; i < 31; i++) { - if ((1 << i) >= value) break; - } - return i; - } - - public static int floorLog2(float value) { - int i; - for (i = 0; i < 31; i++) { - if ((1 << i) > value) break; - } - return i - 1; - } - - public static void closeSilently(ParcelFileDescriptor fd) { - try { - if (fd != null) fd.close(); - } catch (Throwable t) { - Log.w(TAG, "fail to close", t); - } - } - - public static void closeSilently(Cursor cursor) { - try { - if (cursor != null) cursor.close(); - } catch (Throwable t) { - Log.w(TAG, "fail to close", t); - } - } - - public static float interpolateAngle( - float source, float target, float progress) { - // interpolate the angle from source to target - // We make the difference in the range of [-179, 180], this is the - // shortest path to change source to target. - float diff = target - source; - if (diff < 0) diff += 360f; - if (diff > 180) diff -= 360f; - - float result = source + diff * progress; - return result < 0 ? result + 360f : result; - } - - public static float interpolateScale( - float source, float target, float progress) { - return source + progress * (target - source); - } - - public static String ensureNotNull(String value) { - return value == null ? "" : value; - } - - public static float parseFloatSafely(String content, float defaultValue) { - if (content == null) return defaultValue; - try { - return Float.parseFloat(content); - } catch (NumberFormatException e) { - return defaultValue; - } - } - - public static int parseIntSafely(String content, int defaultValue) { - if (content == null) return defaultValue; - try { - return Integer.parseInt(content); - } catch (NumberFormatException e) { - return defaultValue; - } - } - - public static boolean isNullOrEmpty(String exifMake) { - return TextUtils.isEmpty(exifMake); - } - - public static void waitWithoutInterrupt(Object object) { - try { - object.wait(); - } catch (InterruptedException e) { - Log.w(TAG, "unexpected interrupt: " + object); - } - } - - public static boolean handleInterrruptedException(Throwable e) { - // A helper to deal with the interrupt exception - // If an interrupt detected, we will setup the bit again. - if (e instanceof InterruptedIOException - || e instanceof InterruptedException) { - Thread.currentThread().interrupt(); - return true; - } - return false; - } - - /** - * @return String with special XML characters escaped. - */ - public static String escapeXml(String s) { - StringBuilder sb = new StringBuilder(); - for (int i = 0, len = s.length(); i < len; ++i) { - char c = s.charAt(i); - switch (c) { - case '<': sb.append("<"); break; - case '>': sb.append(">"); break; - case '\"': sb.append("""); break; - case '\'': sb.append("'"); break; - case '&': sb.append("&"); break; - default: sb.append(c); - } - } - return sb.toString(); - } - - public static String getUserAgent(Context context) { - PackageInfo packageInfo; - try { - packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0); - } catch (NameNotFoundException e) { - throw new IllegalStateException("getPackageInfo failed"); - } - return String.format("%s/%s; %s/%s/%s/%s; %s/%s/%s", - packageInfo.packageName, - packageInfo.versionName, - Build.BRAND, - Build.DEVICE, - Build.MODEL, - Build.ID, - Build.VERSION.SDK_INT, - Build.VERSION.RELEASE, - Build.VERSION.INCREMENTAL); - } - - public static String[] copyOf(String[] source, int newSize) { - String[] result = new String[newSize]; - newSize = Math.min(source.length, newSize); - System.arraycopy(source, 0, result, 0, newSize); - return result; - } - - // Mask information for debugging only. It returns info.toString() directly - // for debugging build (i.e., 'eng' and 'userdebug') and returns a mask ("****") - // in release build to protect the information (e.g. for privacy issue). - public static String maskDebugInfo(Object info) { - if (info == null) return null; - String s = info.toString(); - int length = Math.min(s.length(), MASK_STRING.length()); - return IS_DEBUG_BUILD ? s : MASK_STRING.substring(0, length); - } - - // This method should be ONLY used for debugging. - public static void debug(String message, Object ... args) { - Log.v(DEBUG_TAG, String.format(message, args)); - } -} \ No newline at end of file -- cgit v1.2.3