From 9d4814e18b9c243340f492f8b7ddd19b523b229f Mon Sep 17 00:00:00 2001 From: hjk Date: Tue, 28 Aug 2012 09:33:09 +0200 Subject: Introduce hook for text cursor changes in QTextEdit and QPlainTextEdit Currently it is hard for Q{Plain}TextEdit subclasses to keep track of changes of the text cursor by direct calls to setTextCursor from arbitrary code. By redirecting the setTextCursor to a virtual function subclasses get the chance to intercept such calls. Change-Id: Id92d9c86928b97285b0f5b7b39790442dfac3e50 Reviewed-by: Marc Mutz Reviewed-by: Lars Knoll --- src/widgets/widgets/qplaintextedit.cpp | 11 +++++++++++ src/widgets/widgets/qplaintextedit.h | 1 + src/widgets/widgets/qtextedit.cpp | 11 +++++++++++ src/widgets/widgets/qtextedit.h | 2 +- 4 files changed, 24 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/widgets/widgets/qplaintextedit.cpp b/src/widgets/widgets/qplaintextedit.cpp index 423f9b3cd1..a5e9e0df30 100644 --- a/src/widgets/widgets/qplaintextedit.cpp +++ b/src/widgets/widgets/qplaintextedit.cpp @@ -1313,6 +1313,17 @@ QTextDocument *QPlainTextEdit::document() const Sets the visible \a cursor. */ void QPlainTextEdit::setTextCursor(const QTextCursor &cursor) +{ + doSetTextCursor(cursor); +} + +/*! + \internal + + This provides a hook for subclasses to intercept cursor changes. +*/ + +void QPlainTextEdit::doSetTextCursor(const QTextCursor &cursor) { Q_D(QPlainTextEdit); d->control->setTextCursor(cursor); diff --git a/src/widgets/widgets/qplaintextedit.h b/src/widgets/widgets/qplaintextedit.h index b7395d3c39..628e4a87a2 100644 --- a/src/widgets/widgets/qplaintextedit.h +++ b/src/widgets/widgets/qplaintextedit.h @@ -254,6 +254,7 @@ protected: QPlainTextEdit(QPlainTextEditPrivate &dd, QWidget *parent); virtual void scrollContentsBy(int dx, int dy); + virtual void doSetTextCursor(const QTextCursor &cursor); QTextBlock firstVisibleBlock() const; QPointF contentOffset() const; diff --git a/src/widgets/widgets/qtextedit.cpp b/src/widgets/widgets/qtextedit.cpp index 0ab76db5d3..0b31c536ac 100644 --- a/src/widgets/widgets/qtextedit.cpp +++ b/src/widgets/widgets/qtextedit.cpp @@ -756,6 +756,17 @@ QTextDocument *QTextEdit::document() const Sets the visible \a cursor. */ void QTextEdit::setTextCursor(const QTextCursor &cursor) +{ + doSetTextCursor(cursor); +} + +/*! + \internal + + This provides a hook for subclasses to intercept cursor changes. +*/ + +void QTextEdit::doSetTextCursor(const QTextCursor &cursor) { Q_D(QTextEdit); d->control->setTextCursor(cursor); diff --git a/src/widgets/widgets/qtextedit.h b/src/widgets/widgets/qtextedit.h index ab0a5aeb7c..e2c294ca86 100644 --- a/src/widgets/widgets/qtextedit.h +++ b/src/widgets/widgets/qtextedit.h @@ -296,7 +296,7 @@ protected: QTextEdit(QTextEditPrivate &dd, QWidget *parent); virtual void scrollContentsBy(int dx, int dy); - + virtual void doSetTextCursor(const QTextCursor &cursor); private: Q_DISABLE_COPY(QTextEdit) -- cgit v1.2.3