From b220fcb1a88cba554335e15588590a1cdbb20db9 Mon Sep 17 00:00:00 2001
From: Lars Knoll <lars.knoll@nokia.com>
Date: Thu, 5 May 2011 10:38:43 +0200
Subject: remove some dependencies to QTextEdit

QSyntaxHighlighter is now free of dependencies to
QtWidgets.
QTextImageHandler still needs some work to get
the url resolving to work again.
---
 src/gui/text/qsyntaxhighlighter.cpp | 21 +++++++++------------
 src/gui/text/qsyntaxhighlighter.h   |  2 --
 src/gui/text/qtextimagehandler.cpp  |  8 +++++---
 src/gui/widgets/qtextedit.h         |  1 +
 4 files changed, 15 insertions(+), 17 deletions(-)

(limited to 'src')

diff --git a/src/gui/text/qsyntaxhighlighter.cpp b/src/gui/text/qsyntaxhighlighter.cpp
index 6a3355b90d..5edd6375c9 100644
--- a/src/gui/text/qsyntaxhighlighter.cpp
+++ b/src/gui/text/qsyntaxhighlighter.cpp
@@ -50,7 +50,6 @@
 #include <qtextobject.h>
 #include <qtextcursor.h>
 #include <qdebug.h>
-#include <qtextedit.h>
 #include <qtimer.h>
 
 QT_BEGIN_NAMESPACE
@@ -311,10 +310,19 @@ void QSyntaxHighlighterPrivate::reformatBlock(const QTextBlock &block)
 
 /*!
     Constructs a QSyntaxHighlighter with the given \a parent.
+
+    If the parent is a QTextEdit, it installs the syntaxhighlighter on the
+    parents document. The specified QTextEdit also becomes the owner of
+    the QSyntaxHighlighter.
 */
 QSyntaxHighlighter::QSyntaxHighlighter(QObject *parent)
     : QObject(*new QSyntaxHighlighterPrivate, parent)
 {
+    if (parent->inherits("QTextEdit")) {
+        QTextDocument *doc = qobject_cast<QTextDocument *>(parent->property("document").value<QObject *>());
+        if (doc)
+            setDocument(doc);
+    }
 }
 
 /*!
@@ -328,17 +336,6 @@ QSyntaxHighlighter::QSyntaxHighlighter(QTextDocument *parent)
     setDocument(parent);
 }
 
-/*!
-    Constructs a QSyntaxHighlighter and installs it on \a parent 's
-    QTextDocument. The specified QTextEdit also becomes the owner of
-    the QSyntaxHighlighter.
-*/
-QSyntaxHighlighter::QSyntaxHighlighter(QTextEdit *parent)
-    : QObject(*new QSyntaxHighlighterPrivate, parent)
-{
-    setDocument(parent->document());
-}
-
 /*!
     Destructor. Uninstalls this syntax highlighter from the text document.
 */
diff --git a/src/gui/text/qsyntaxhighlighter.h b/src/gui/text/qsyntaxhighlighter.h
index 9cd5778074..33006cdd9e 100644
--- a/src/gui/text/qsyntaxhighlighter.h
+++ b/src/gui/text/qsyntaxhighlighter.h
@@ -61,7 +61,6 @@ class QTextCharFormat;
 class QFont;
 class QColor;
 class QTextBlockUserData;
-class QTextEdit;
 
 class Q_GUI_EXPORT QSyntaxHighlighter : public QObject
 {
@@ -70,7 +69,6 @@ class Q_GUI_EXPORT QSyntaxHighlighter : public QObject
 public:
     QSyntaxHighlighter(QObject *parent);
     QSyntaxHighlighter(QTextDocument *parent);
-    QSyntaxHighlighter(QTextEdit *parent);
     virtual ~QSyntaxHighlighter();
 
     void setDocument(QTextDocument *doc);
diff --git a/src/gui/text/qtextimagehandler.cpp b/src/gui/text/qtextimagehandler.cpp
index 7cfaa3c88c..d04b758bc9 100644
--- a/src/gui/text/qtextimagehandler.cpp
+++ b/src/gui/text/qtextimagehandler.cpp
@@ -48,7 +48,6 @@
 #include <qdebug.h>
 #include <private/qtextengine_p.h>
 #include <qpalette.h>
-#include <qtextbrowser.h>
 #include <qthread.h>
 
 QT_BEGIN_NAMESPACE
@@ -73,7 +72,8 @@ static QPixmap getPixmap(QTextDocument *doc, const QTextImageFormat &format)
 
     if (pm.isNull()) {
         QString context;
-#ifndef QT_NO_TEXTBROWSER
+#if 0
+        // ### Qt5
         QTextBrowser *browser = qobject_cast<QTextBrowser *>(doc->parent());
         if (browser)
             context = browser->source().toString();
@@ -150,7 +150,9 @@ static QImage getImage(QTextDocument *doc, const QTextImageFormat &format)
 
     if (image.isNull()) {
         QString context;
-#ifndef QT_NO_TEXTBROWSER
+
+#if 0
+        // ### Qt5
         QTextBrowser *browser = qobject_cast<QTextBrowser *>(doc->parent());
         if (browser)
             context = browser->source().toString();
diff --git a/src/gui/widgets/qtextedit.h b/src/gui/widgets/qtextedit.h
index d2d86d5ed7..459f9bdd5e 100644
--- a/src/gui/widgets/qtextedit.h
+++ b/src/gui/widgets/qtextedit.h
@@ -90,6 +90,7 @@ class Q_GUI_EXPORT QTextEdit : public QAbstractScrollArea
     Q_PROPERTY(bool acceptRichText READ acceptRichText WRITE setAcceptRichText)
     Q_PROPERTY(int cursorWidth READ cursorWidth WRITE setCursorWidth)
     Q_PROPERTY(Qt::TextInteractionFlags textInteractionFlags READ textInteractionFlags WRITE setTextInteractionFlags)
+    Q_PROPERTY(QObject *document READ document)
 public:
     enum LineWrapMode {
         NoWrap,
-- 
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