Q(Plain)TextEdit: Add find() overload with QRegExp

Add overloads to the find() methods in QPlainTextEdit and QTextEdit
that find the next occurrence matching the passed regular expression.

These are convenience methods that eliminate the need to use the
document() method and the need to handle the QTextCursor return value.

[ChangeLog][QtWidgets][QPlainTextEdit] Added find method overload using QRegExp

[ChangeLog][QtWidgets][QTextEdit] Added find method overload using QRegExp

Change-Id: Ia6139b771e3ae4ca02e4b8ea7fde19e5dc71b9d8
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp b/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp
index 11c4e238ec..61eb390fd3 100644
--- a/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp
+++ b/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp
@@ -149,6 +149,11 @@ private slots:
     void insertAndScrollToBottom();
     void inputMethodQueryImHints_data();
     void inputMethodQueryImHints();
+#ifndef QT_NO_REGEXP
+    void findWithRegExp();
+    void findBackwardWithRegExp();
+    void findWithRegExpReturnsFalseIfNoMoreResults();
+#endif
 
 private:
     void createSelection();
@@ -1523,5 +1528,44 @@ void tst_QPlainTextEdit::inputMethodQueryImHints()
     QCOMPARE(static_cast<Qt::InputMethodHints>(value.toInt()), hints);
 }
 
+#ifndef QT_NO_REGEXP
+void tst_QPlainTextEdit::findWithRegExp()
+{
+    ed->setPlainText(QStringLiteral("arbitrary text"));
+    QRegExp rx("\\w{2}xt");
+
+    bool found = ed->find(rx);
+
+    QVERIFY(found == true);
+    QCOMPARE(ed->textCursor().selectedText(), QStringLiteral("text"));
+}
+
+void tst_QPlainTextEdit::findBackwardWithRegExp()
+{
+    ed->setPlainText(QStringLiteral("arbitrary text"));
+    QTextCursor cursor = ed->textCursor();
+    cursor.movePosition(QTextCursor::End);
+    ed->setTextCursor(cursor);
+    QRegExp rx("a\\w*t");
+
+    bool found = ed->find(rx, QTextDocument::FindBackward);
+
+    QVERIFY(found == true);
+    QCOMPARE(ed->textCursor().selectedText(), QStringLiteral("arbit"));
+}
+
+void tst_QPlainTextEdit::findWithRegExpReturnsFalseIfNoMoreResults()
+{
+    ed->setPlainText(QStringLiteral("arbitrary text"));
+    QRegExp rx("t.xt");
+    ed->find(rx);
+
+    bool found = ed->find(rx);
+
+    QVERIFY(found == false);
+    QCOMPARE(ed->textCursor().selectedText(), QStringLiteral("text"));
+}
+#endif
+
 QTEST_MAIN(tst_QPlainTextEdit)
 #include "tst_qplaintextedit.moc"