From b2aec252353fa0c87ff23d3e5d1f55e4ae835b21 Mon Sep 17 00:00:00 2001
From: Kevin Krammer <kevin.krammer@kdab.com>
Date: Tue, 6 Nov 2012 09:02:01 +0100
Subject: [PATCH] Add text document as property

---
 lib/declarativewidgetsdocument.cpp |    1 +
 lib/objectadaptors.cpp             |   23 +++++++++++++++++++++++
 lib/objectadaptors_p.h             |    7 +++++++
 3 files changed, 31 insertions(+), 0 deletions(-)

diff --git a/lib/declarativewidgetsdocument.cpp b/lib/declarativewidgetsdocument.cpp
index e861a86..793f77a 100644
--- a/lib/declarativewidgetsdocument.cpp
+++ b/lib/declarativewidgetsdocument.cpp
@@ -152,6 +152,7 @@ DeclarativeWidgetsDocument::DeclarativeWidgetsDocument(const QUrl &url, QObject
   qmlRegisterType<DeclarativeMenuBar>("QtGui", 1, 0, "MenuBar");
   qmlRegisterType<DeclarativeMessageBoxAttached>();
   qmlRegisterType<DeclarativeMessageBox>("QtGui", 1, 0, "MessageBox");
+  qmlRegisterType<QTextDocument>();
   qmlRegisterType<DeclarativePlainTextEdit>("QtGui", 1, 0, "PlainTextEdit");
   qmlRegisterType<DeclarativeProgressBar>("QtGui", 1, 0, "ProgressBar");
   qmlRegisterType<DeclarativePushButton>("QtGui", 1, 0, "PushButton");
diff --git a/lib/objectadaptors.cpp b/lib/objectadaptors.cpp
index b654864..b7f10f3 100644
--- a/lib/objectadaptors.cpp
+++ b/lib/objectadaptors.cpp
@@ -228,6 +228,29 @@ TextEdit::TextEdit(QWidget *parent)
   connect(document(), SIGNAL(modificationChanged(bool)), this, SIGNAL(modifiedChanged()));
 }
 
+void TextEdit::setTextDocument(QTextDocument *document)
+{
+  if (document == 0)
+    return;
+
+  if (this->document() == document)
+    return;
+
+  if (this->document()) {
+    disconnect(this->document(), SIGNAL(modificationChanged(bool)), this, SIGNAL(modifiedChanged()));
+  }
+
+  const bool oldModified = modified();
+
+  setDocument(document);
+  connect(document, SIGNAL(modificationChanged(bool)), this, SIGNAL(modifiedChanged()));
+
+  emit documentChanged();
+
+  if (oldModified != modified())
+    emit modifiedChanged();
+}
+
 bool TextEdit::modified() const
 {
   return document()->isModified();
diff --git a/lib/objectadaptors_p.h b/lib/objectadaptors_p.h
index 13a65b5..96eb692 100644
--- a/lib/objectadaptors_p.h
+++ b/lib/objectadaptors_p.h
@@ -183,13 +183,20 @@ class TextEdit : public QTextEdit
 {
   Q_OBJECT
 
+  // TODO
+  // ideally QTextDocument's property declaration for modified would include the modificationChanged signal
+  // as its NOTIFY, this and setTextDocument could then be removed
   Q_PROPERTY(bool modified READ modified NOTIFY modifiedChanged)
+  Q_PROPERTY(QTextDocument* document READ document WRITE setTextDocument NOTIFY documentChanged)
 
   public:
     TextEdit(QWidget *parent = 0);
 
+    void setTextDocument(QTextDocument *document);
+
   Q_SIGNALS:
     void modifiedChanged();
+    void documentChanged();
 
   private:
     bool modified() const;
-- 
1.7.2.5