QPlainTextEditControl: reimplement anchorAt()

See comments in QPlainTextDocumentLayout::hitTest(). Since
QPlainTextEdit does not do hit testing on the document layout
level, allow QPlainTextEditControl to override anchorAt() so
that hit testing can be done on the widget level instead.

Change-Id: I70247eafae96897382a0c7db7d596128a03e7a6c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>

3 files changed, 6 insertions, 1 deletions

diff --git a/src/widgets/widgets/qplaintextedit.cpp b/src/widgets/widgets/qplaintextedit.cpp
index e56fd111e5..7f51eaf683 100644
--- a/src/widgets/widgets/qplaintextedit.cpp
+++ b/src/widgets/widgets/qplaintextedit.cpp
@@ -604,6 +604,10 @@ QRectF QPlainTextEditControl::blockBoundingRect(const QTextBlock &block) const {
     return r;
 }
 
+QString QPlainTextEditControl::anchorAt(const QPointF &pos) const
+{
+    return textEdit->anchorAt(pos.toPoint());
+}
 
 void QPlainTextEditPrivate::setTopLine(int visualTopLine, int dx)
 {
diff --git a/src/widgets/widgets/qplaintextedit_p.h b/src/widgets/widgets/qplaintextedit_p.h
index 1e74c7b895..30aff5e97c 100644
--- a/src/widgets/widgets/qplaintextedit_p.h
+++ b/src/widgets/widgets/qplaintextedit_p.h
@@ -77,6 +77,7 @@ public:
     void insertFromMimeData(const QMimeData *source) Q_DECL_OVERRIDE;
     int hitTest(const QPointF &point, Qt::HitTestAccuracy = Qt::FuzzyHit) const Q_DECL_OVERRIDE;
     QRectF blockBoundingRect(const QTextBlock &block) const Q_DECL_OVERRIDE;
+    QString anchorAt(const QPointF &pos) const Q_DECL_OVERRIDE;
     inline QRectF cursorRect(const QTextCursor &cursor) const {
         QRectF r = QWidgetTextControl::cursorRect(cursor);
         r.setLeft(qMax(r.left(), (qreal) 0.));
diff --git a/src/widgets/widgets/qwidgettextcontrol_p.h b/src/widgets/widgets/qwidgettextcontrol_p.h
index 79f4e404a2..fb16e7e3c4 100644
--- a/src/widgets/widgets/qwidgettextcontrol_p.h
+++ b/src/widgets/widgets/qwidgettextcontrol_p.h
@@ -124,7 +124,7 @@ public:
     QRectF selectionRect(const QTextCursor &cursor) const;
     QRectF selectionRect() const;
 
-    QString anchorAt(const QPointF &pos) const;
+    virtual QString anchorAt(const QPointF &pos) const;
     QPointF anchorPosition(const QString &name) const;
 
     QString anchorAtCursor() const;