Merge "Improve ellipsize performance" into rvc-dev am: b3b4990453

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14905055

Change-Id: Ib9c5c9b376ea08177c855a10a5a3d5c1112c0ba8

1 files changed, 5 insertions, 4 deletions

diff --git a/core/java/android/text/Layout.java b/core/java/android/text/Layout.java
index 8a4497a0f0ce..6baea1aea471 100644
--- a/core/java/android/text/Layout.java
+++ b/core/java/android/text/Layout.java
@@ -2350,7 +2350,10 @@ public abstract class Layout {
         final int ellipsisStringLen = ellipsisString.length();
         // Use the ellipsis string only if there are that at least as many characters to replace.
         final boolean useEllipsisString = ellipsisCount >= ellipsisStringLen;
-        for (int i = 0; i < ellipsisCount; i++) {
+        final int min = Math.max(0, start - ellipsisStart - lineStart);
+        final int max = Math.min(ellipsisCount, end - ellipsisStart - lineStart);
+
+        for (int i = min; i < max; i++) {
             final char c;
             if (useEllipsisString && i < ellipsisStringLen) {
                 c = ellipsisString.charAt(i);
@@ -2359,9 +2362,7 @@ public abstract class Layout {
             }
 
             final int a = i + ellipsisStart + lineStart;
-            if (start <= a && a < end) {
-                dest[destoff + a - start] = c;
-            }
+            dest[destoff + a - start] = c;
         }
     }