Add a getFormattedText function to TextEdit.

The same as getText except it include formatting tags if the TextEdit
has a rich text format set.

Change-Id: I601e8d396254ab6105aa7d105e25b14fcf69c4e5
Reviewed-by: Martin Jones <martin.jones@nokia.com>

src/declarative/items/qquicktextedit.cpp

@@ -1994,6 +1994,36 @@ QString QQuickTextEdit::getText(int start, int end) const
     return cursor.selectedText();
 }
 
+/*!
+    \qmlmethod string QtQuick2::TextEdit::getFormattedText(int start, int end)
+
+    Returns the section of text that is between the \a start and \a end positions.
+
+    The returned text will be formatted according the \l textFormat property.
+*/
+
+QString QQuickTextEdit::getFormattedText(int start, int end) const
+{
+    Q_D(const QQuickTextEdit);
+
+    start = qBound(0, start, d->document->characterCount() - 1);
+    end = qBound(0, end, d->document->characterCount() - 1);
+
+    QTextCursor cursor(d->document);
+    cursor.setPosition(start, QTextCursor::MoveAnchor);
+    cursor.setPosition(end, QTextCursor::KeepAnchor);
+
+    if (d->richText) {
+#ifndef QT_NO_TEXTHTMLPARSER
+        return cursor.selection().toHtml();
+#else
+        return cursor.selection().toPlainText();
+#endif
+    } else {
+        return cursor.selection().toPlainText();
+    }
+}
+
 /*!
     \qmlmethod void QtQuick2::TextEdit::insert(int position, string text)
 

src/declarative/items/qquicktextedit_p.h

@@ -218,6 +218,7 @@ public:
     bool isInputMethodComposing() const;
 
     Q_INVOKABLE QString getText(int start, int end) const;
+    Q_INVOKABLE QString getFormattedText(int start, int end) const;
 
 Q_SIGNALS:
     void textChanged(const QString &);

tests/auto/declarative/qquicktextedit/tst_qquicktextedit.cpp

@@ -159,6 +159,8 @@ private slots:
 
     void getText_data();
     void getText();
+    void getFormattedText_data();
+    void getFormattedText();
     void insert_data();
     void insert();
     void remove_data();
@@ -2411,7 +2413,7 @@ void tst_qquicktextedit::getText_data()
             << 0 << plainBoldText.length()
             << plainBoldText;
 
-    QTest::newRow("rick text sub string")
+    QTest::newRow("rich text sub string")
             << richBoldText
             << 14 << 21
             << plainBoldText.mid(14, 7);
@@ -2433,6 +2435,115 @@ void tst_qquicktextedit::getText()
     QCOMPARE(textEdit->getText(start, end), expectedText);
 }
 
+void tst_qquicktextedit::getFormattedText_data()
+{
+    QTest::addColumn<QString>("text");
+    QTest::addColumn<QQuickTextEdit::TextFormat>("textFormat");
+    QTest::addColumn<int>("start");
+    QTest::addColumn<int>("end");
+    QTest::addColumn<QString>("expectedText");
+
+    const QString richBoldText = QStringLiteral("This is some <b>bold</b> text");
+    const QString plainBoldText = QStringLiteral("This is some bold text");
+
+    QTest::newRow("all plain text")
+            << standard.at(0)
+            << QQuickTextEdit::PlainText
+            << 0 << standard.at(0).length()
+            << standard.at(0);
+
+    QTest::newRow("plain text sub string")
+            << standard.at(0)
+            << QQuickTextEdit::PlainText
+            << 0 << 12
+            << standard.at(0).mid(0, 12);
+
+    QTest::newRow("plain text sub string reversed")
+            << standard.at(0)
+            << QQuickTextEdit::PlainText
+            << 12 << 0
+            << standard.at(0).mid(0, 12);
+
+    QTest::newRow("plain text cropped beginning")
+            << standard.at(0)
+            << QQuickTextEdit::PlainText
+            << -3 << 4
+            << standard.at(0).mid(0, 4);
+
+    QTest::newRow("plain text cropped end")
+            << standard.at(0)
+            << QQuickTextEdit::PlainText
+            << 23 << standard.at(0).length() + 8
+            << standard.at(0).mid(23);
+
+    QTest::newRow("plain text cropped beginning and end")
+            << standard.at(0)
+            << QQuickTextEdit::PlainText
+            << -9 << standard.at(0).length() + 4
+            << standard.at(0);
+
+    QTest::newRow("all rich (Auto) text")
+            << richBoldText
+            << QQuickTextEdit::AutoText
+            << 0 << plainBoldText.length()
+            << QString("This is some \\<.*\\>bold\\</.*\\> text");
+
+    QTest::newRow("all rich (Rich) text")
+            << richBoldText
+            << QQuickTextEdit::RichText
+            << 0 << plainBoldText.length()
+            << QString("This is some \\<.*\\>bold\\</.*\\> text");
+
+    QTest::newRow("all rich (Plain) text")
+            << richBoldText
+            << QQuickTextEdit::PlainText
+            << 0 << richBoldText.length()
+            << richBoldText;
+
+    QTest::newRow("rich (Auto) text sub string")
+            << richBoldText
+            << QQuickTextEdit::AutoText
+            << 14 << 21
+            << QString("\\<.*\\>old\\</.*\\> tex");
+
+    QTest::newRow("rich (Rich) text sub string")
+            << richBoldText
+            << QQuickTextEdit::RichText
+            << 14 << 21
+            << QString("\\<.*\\>old\\</.*\\> tex");
+
+    QTest::newRow("rich (Plain) text sub string")
+            << richBoldText
+            << QQuickTextEdit::PlainText
+            << 17 << 27
+            << richBoldText.mid(17, 10);
+}
+
+void tst_qquicktextedit::getFormattedText()
+{
+    QFETCH(QString, text);
+    QFETCH(QQuickTextEdit::TextFormat, textFormat);
+    QFETCH(int, start);
+    QFETCH(int, end);
+    QFETCH(QString, expectedText);
+
+    QString componentStr = "import QtQuick 2.0\nTextEdit {}";
+    QDeclarativeComponent textEditComponent(&engine);
+    textEditComponent.setData(componentStr.toLatin1(), QUrl());
+    QQuickTextEdit *textEdit = qobject_cast<QQuickTextEdit*>(textEditComponent.create());
+    QVERIFY(textEdit != 0);
+
+    textEdit->setTextFormat(textFormat);
+    textEdit->setText(text);
+
+    if (textFormat == QQuickTextEdit::RichText
+            || (textFormat == QQuickTextEdit::AutoText && Qt::mightBeRichText(text))) {
+        QVERIFY(textEdit->getFormattedText(start, end).contains(QRegExp(expectedText)));
+    } else {
+        QCOMPARE(textEdit->getFormattedText(start, end), expectedText);
+    }
+}
+
 void tst_qquicktextedit::insert_data()
 {
     QTest::addColumn<QString>("text");