Long live Qt 4.5!

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diff --git a/src/qt3support/painting/q3pointarray.cpp b/src/qt3support/painting/q3pointarray.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the Qt3Support module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "q3pointarray.h"
+#include "private/qbezier_p.h"
+#include "private/qpainterpath_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class Q3PointArray
+    The Q3PointArray class provides an array of points.
+
+    \compat
+
+    Q3PointArray is a QPolygon subclass that provides functions
+    to make it more source compatible with the \c QPointArray class
+    in Qt 3.
+
+    In Qt 4, we recommend that you use QPainterPath for representing
+    arcs, ellipses, and Bezier curves, rather than QPolygon.
+*/
+
+/*!
+    Sets the points of the array to those describing an arc of an
+    ellipse with size, width \a w by height \a h, and position (\a x,
+    \a y), starting from angle \a a1 and spanning by angle \a a2. The
+    resulting array has sufficient resolution for pixel accuracy (see
+    the overloaded function which takes an additional QMatrix
+    parameter).
+
+    Angles are specified in 16ths of a degree, i.e. a full circle
+    equals 5760 (16*360). Positive values mean counter-clockwise,
+    whereas negative values mean the clockwise direction. Zero degrees
+    is at the 3 o'clock position.
+*/
+#ifndef QT_NO_WMATRIX
+void Q3PointArray::makeArc(int x, int y, int w, int h, int a1, int a2)
+{
+    QRectF r(x, y, w, h);
+    QPointF startPoint;
+    qt_find_ellipse_coords(r, a1 / 16.0, a2 / 16.0, &startPoint, 0);
+
+    QPainterPath path(startPoint);
+    path.arcTo(r, a1 / 16.0, a2 / 16.0);
+
+    if (path.isEmpty())
+        *this = Q3PointArray();
+    else
+        *this = path.toSubpathPolygons().at(0).toPolygon();
+}
+#endif
+
+#ifndef QT_NO_TRANSFORMATIONS
+/*!
+    \overload
+
+    Sets the points of the array to those describing an arc of an
+    ellipse with width \a w and height \a h and position (\a x, \a y),
+    starting from angle \a a1, and spanning angle by \a a2, and
+    transformed by the matrix \a xf. The resulting array has
+    sufficient resolution for pixel accuracy.
+
+    Angles are specified in 16ths of a degree, i.e. a full circle
+    equals 5760 (16 * 360). Positive values mean counter-clockwise,
+    whereas negative values mean the clockwise direction. Zero
+    degrees is at the 3 o'clock position.
+*/
+void Q3PointArray::makeArc(int x, int y, int w, int h, int a1, int a2, const QMatrix &xf)
+{
+    QRectF r(x, y, w, h);
+    QPointF startPoint;
+    qt_find_ellipse_coords(r, a1 / 16.0, a2 / 16.0, &startPoint, 0);
+
+    QPainterPath path(startPoint);
+    path.arcTo(r, a1 / 16.0, a2 / 16.0);
+    path = path * xf;
+    if (path.isEmpty())
+        *this = Q3PointArray();
+    else
+        *this = path.toSubpathPolygons().at(0).toPolygon();
+}
+
+#endif // QT_NO_TRANSFORMATIONS
+
+/*!
+    \fn Q3PointArray::Q3PointArray()
+
+    Constructs an empty Q3PointArray.
+*/
+
+/*!
+    \fn Q3PointArray::Q3PointArray(const QRect &r, bool closed)
+
+    Constructs a point array from the rectangle \a r.
+
+    If \a closed is false, then the point array just contains the
+    following four points of the rectangle ordered clockwise. The
+    bottom-right point is located at (r.x() + r.width(), r.y() +
+    r.height()).
+*/
+
+/*!
+    \fn Q3PointArray::Q3PointArray(const QPolygon& other)
+
+    Constructs a copy of \a other.
+*/
+
+/*!
+    \fn Q3PointArray Q3PointArray::copy() const
+
+    Returns a copy of this Q3PointArray.
+*/
+
+/*!
+    \fn bool Q3PointArray::isNull()
+
+    Returns isEmpty(). Use isEmpty() instead.
+*/
+
+/*!
+    Sets the points of the array to those describing an ellipse with
+    size, width \a w by height \a h, and position (\a x, \a y).
+
+    The returned array has sufficient resolution for use as pixels.
+*/
+void Q3PointArray::makeEllipse(int x, int y, int w, int h)
+{
+    QPainterPath path;
+    path.addEllipse(x, y, w, h);
+    *this = path.toSubpathPolygons().at(0).toPolygon();
+}
+
+#ifndef QT_NO_BEZIER
+
+/*!
+    Returns the Bezier points for the four control points in this
+    array.
+*/
+Q3PointArray Q3PointArray::cubicBezier() const
+{
+    if (size() != 4) {
+	qWarning( "Q3PointArray::bezier: The array must have 4 control points" );
+        return QPolygon();
+    }
+    QPolygonF polygon = QBezier::fromPoints(at(0), at(1), at(2), at(3)).toPolygon();
+    return polygon.toPolygon();
+}
+#endif //QT_NO_BEZIER
+
+QT_END_NAMESPACE