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39 lines
1.6 KiB
Diff
39 lines
1.6 KiB
Diff
From 34d287505f8c992b1ba3416b89fca16482123e48 Mon Sep 17 00:00:00 2001
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From: Seigo Nonaka <nona@google.com>
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Date: Mon, 16 Sep 2019 14:49:49 -0700
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Subject: [PATCH] Do not compute outside given range in TextLine
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This is second attempt of I646851973b3816bf9ba32dfe26748c0345a5a081
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which breaks various layout test on application.
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The empty string must be also handled by the TextLine since it
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retrieves the default line height from the empty string.
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Bug: 140632678
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Test: StaticLayoutTest
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Test: Manually done
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Change-Id: I7089ed9b711dddd7de2b27c9c2fa0fb4cb53a735
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---
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core/java/android/text/TextLine.java | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/core/java/android/text/TextLine.java b/core/java/android/text/TextLine.java
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index 1fecf81d5a4f..712007ed0577 100644
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--- a/core/java/android/text/TextLine.java
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+++ b/core/java/android/text/TextLine.java
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@@ -206,6 +206,7 @@ void draw(Canvas c, float x, int top, int y, int bottom) {
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int lastRunIndex = runs.length - 2;
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for (int i = 0; i < runs.length; i += 2) {
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int runStart = runs[i];
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+ if (runStart > mLen) break;
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int runLimit = runStart + (runs[i+1] & Layout.RUN_LENGTH_MASK);
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if (runLimit > mLen) {
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runLimit = mLen;
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@@ -301,6 +302,7 @@ float measure(int offset, boolean trailing, FontMetricsInt fmi) {
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int[] runs = mDirections.mDirections;
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for (int i = 0; i < runs.length; i += 2) {
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int runStart = runs[i];
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+ if (runStart > mLen) break;
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int runLimit = runStart + (runs[i+1] & Layout.RUN_LENGTH_MASK);
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if (runLimit > mLen) {
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runLimit = mLen;
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