Add QTextDocument::toRawText() function

The QTextDocument::toPlainText() converts some characters in the
text to ASCII, which can be problematic for use cases where you
want to save the precise contents of the document, e.g. in
Qt Creator. Since we don't want to change the behavior of
toPlainText(), we introduce a new function which returns the
raw text contents of the document instead, with no modifications.

[ChangeLog][QtGui][Text] Added QTextDocument::toRawText() function.

Task-number: QTBUG-56538
Change-Id: Ib6c48a16551c4c71c4c431760f993793d1af6806
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp b/tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp
index de5b2a8676..ef1ad76161 100644
--- a/tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp
+++ b/tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp
@@ -135,6 +135,7 @@ private slots:
 
     void setPlainText();
     void toPlainText();
+    void toRawText();
 
     void deleteTextObjectsOnClear();
 
@@ -2396,6 +2397,16 @@ void tst_QTextDocument::toPlainText()
     QCOMPARE(doc->toPlainText(), QLatin1String("Hello World"));
 }
 
+void tst_QTextDocument::toRawText()
+{
+    doc->setHtml(" ");
+
+    QString rawText = doc->toRawText();
+    QCOMPARE(rawText.size(), 1);
+    QCOMPARE(rawText.at(0).unicode(), ushort(QChar::Nbsp));
+}
+
+
 void tst_QTextDocument::deleteTextObjectsOnClear()
 {
     QPointer<QTextTable> table = cursor.insertTable(2, 2);