QTextStream: Extract Method padding() from putString()

This is in preparation of adding a putString(QLatin1String) overload.

To keep the change simple, I kept the construction of the padChar
chain per putString() call. It probably makes sense to have a
QString::resize(int, QChar) to perform the padding operation in-place.

Let's leave that for another changeset.

Change-Id: I9ef66b8df38117e1669fd2bece6ee180a2ce3369
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/corelib/io/qtextstream_p.h b/src/corelib/io/qtextstream_p.h
index 01289d7dc6..c44ae5dada 100644
--- a/src/corelib/io/qtextstream_p.h
+++ b/src/corelib/io/qtextstream_p.h
@@ -173,6 +173,14 @@ public:
     inline void putChar(QChar ch);
     void putNumber(qulonglong number, bool negative);
 
+    struct PaddingResult {
+        enum { PreallocatedPadding = 80 }; // typical line length
+
+        int right, left;
+        QVarLengthArray<QChar, PreallocatedPadding> padding;
+    };
+    PaddingResult padding(int len) const;
+
     // buffers
     bool fillReadBuffer(qint64 maxBytes = -1);
     void resetReadBuffer();