enable the text layout's cache where it is seems to be missed

e.g. in QStaticText, the data is used just to get the line's y-position
and re-calculates just after the loop to determine the bounding rect and to draw the text;

in QWidgetLineControl, the data re-calculated over and over while the result
is seems to remain the same; probably the caching is needed here too

Change-Id: I0f7eb291532f63eccb9c5f749daebb73ff90632f
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/auto/gui/text/qtextscriptengine/tst_qtextscriptengine.cpp b/tests/auto/gui/text/qtextscriptengine/tst_qtextscriptengine.cpp
index 5a53f09e77..f2ecd5dacb 100644
--- a/tests/auto/gui/text/qtextscriptengine/tst_qtextscriptengine.cpp
+++ b/tests/auto/gui/text/qtextscriptengine/tst_qtextscriptengine.cpp
@@ -1231,6 +1231,7 @@ void tst_QTextScriptEngine::mirroredChars()
     HB_Glyph rightParenthesis;
     {
         QTextLayout layout(s);
+        layout.setCacheEnabled(true);
         layout.beginLayout();
         layout.createLine();
         layout.endLayout();
@@ -1267,6 +1268,7 @@ void tst_QTextScriptEngine::thaiIsolatedSaraAm()
         s.append(QChar(0x0e33));
 
         QTextLayout layout(s, QFont("Waree"));
+        layout.setCacheEnabled(true);
         layout.beginLayout();
         layout.createLine();
         layout.endLayout();
@@ -1289,6 +1291,7 @@ void tst_QTextScriptEngine::thaiWithZWJ()
 #endif
     QString s(QString::fromUtf8("ร‍ร‌.ร.“ร…ร”ร\xA0ร本ร") + QChar(0x0363)/*superscript 'a', for testing Inherited class*/);
     QTextLayout layout(s);
+    layout.setCacheEnabled(true);
     layout.beginLayout();
     layout.createLine();
     layout.endLayout();
@@ -1341,6 +1344,7 @@ void tst_QTextScriptEngine::thaiMultipleVowels()
     for (int i = 0; i < 10; i++)
         s += s; //Repeat the string to make it more likely to crash if we have a buffer overflow
     QTextLayout layout(s);
+    layout.setCacheEnabled(true);
     layout.beginLayout();
     layout.createLine();
     layout.endLayout();