Improve editor's tooltip. Wrapping hack should no longer be necessary.

Also some less significant improvements.

src/plugins/texteditor/tooltip/reuse.h

@@ -0,0 +1,62 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#ifndef TOOLTIPREUSE_H
+#define TOOLTIPREUSE_H
+
+#include <QtCore/QPoint>
+#include <QtCore/QRect>
+#include <QtGui/QWidget>
+#include <QtGui/QApplication>
+#include <QtGui/QDesktopWidget>
+
+namespace TextEditor {
+namespace Internal {
+
+inline int screenNumber(const QPoint &pos, QWidget *w)
+{
+    if (QApplication::desktop()->isVirtualDesktop())
+        return QApplication::desktop()->screenNumber(pos);
+    else
+        return QApplication::desktop()->screenNumber(w);
+}
+
+inline QRect screenGeometry(const QPoint &pos, QWidget *w)
+{
+#ifdef Q_WS_MAC
+    return QApplication::desktop()->availableGeometry(screenNumber(pos, w));
+#else
+    return QApplication::desktop()->screenGeometry(screenNumber(pos, w));
+#endif
+}
+
+} // namespace Internal
+} // namespace TextEditor
+
+#endif // TOOLTIPREUSE_H