Move to AppCompat AlertDialog for proper rendering on pre-lollipop devices

[pub/Android/ownCloud.git] / src / com / owncloud / android / utils / DisplayUtils.java

diff --git a/src/com/owncloud/android/utils/DisplayUtils.java b/src/com/owncloud/android/utils/DisplayUtils.java
index 91dfc47..d81fe78 100644 (file)
--- a/src/com/owncloud/android/utils/DisplayUtils.java
+++ b/src/com/owncloud/android/utils/DisplayUtils.java
@@ -22,6 +22,7 @@
 \r
 package com.owncloud.android.utils;\r
 \r
+import java.math.BigDecimal;\r
 import java.net.IDN;\r
 import java.text.DateFormat;\r
 import java.util.Arrays;\r
@@ -33,9 +34,12 @@ import java.util.Set;
 import java.util.Vector;\r
 \r
 import android.annotation.TargetApi;\r
+import android.app.Activity;\r
 import android.content.Context;\r
+import android.graphics.Point;\r
 import android.os.Build;\r
 import android.text.format.DateUtils;\r
+import android.view.Display;\r
 import android.webkit.MimeTypeMap;\r
 \r
 import com.owncloud.android.MainApp;\r
@@ -52,6 +56,7 @@ public class DisplayUtils {
     //private static String TAG = DisplayUtils.class.getSimpleName(); \r
     \r
     private static final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };\r
+    private static final int[] sizeScales = { 0, 0, 0, 1, 1, 2, 2, 2, 2 };\r
 \r
     private static HashMap<String, String> mimeType2HUmanReadable;\r
     static {\r
@@ -111,7 +116,11 @@ public class DisplayUtils {
     \r
     /**\r
      * Converts the file size in bytes to human readable output.\r
-     * \r
+     * <ul>\r
+     *     <li>appends a size suffix, e.g. B, KB, MB etc.</li>\r
+     *     <li>rounds the size based on the suffix to 0,1 or 2 decimals</li>\r
+     * </ul>\r
+     *\r
      * @param bytes Input file size\r
      * @return Like something readable like "12 MB"\r
      */\r
@@ -122,8 +131,9 @@ public class DisplayUtils {
             result /= 1024.;\r
             attachedsuff++;\r
         }\r
-        result = ((int) (result * 100)) / 100.;\r
-        return result + " " + sizeSuffixes[attachedsuff];\r
+\r
+        return new BigDecimal(result).setScale(\r
+                sizeScales[attachedsuff], BigDecimal.ROUND_HALF_UP) + " " + sizeSuffixes[attachedsuff];\r
     }\r
 \r
     /**\r
@@ -350,4 +360,24 @@ public class DisplayUtils {
         return path;\r
     }\r
 \r
+\r
+    /**\r
+     * Gets the screen size in pixels in a backwards compatible way\r
+     *\r
+     * @param caller        Activity calling; needed to get access to the {@link android.view.WindowManager}\r
+     * @return              Size in pixels of the screen, or default {@link Point} if caller is null\r
+     */\r
+    public static Point getScreenSize(Activity caller) {\r
+        Point size = new Point();\r
+        if (caller != null) {\r
+            Display display = caller.getWindowManager().getDefaultDisplay();\r
+            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB_MR2) {\r
+                display.getSize(size);\r
+            } else {\r
+                size.set(display.getWidth(), display.getHeight());\r
+            }\r
+        }\r
+        return size;\r
+    }\r
+\r
 }\r