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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "testtessellator.h"
#include <private/qtessellator_p.h>
#include "math.h"
#include <QtCore/QDebug>
class TestTessellator : public QTessellator
{
public:
QVector<XTrapezoid> *traps;
void addTrap(const Trapezoid &trap);
};
void TestTessellator::addTrap(const Trapezoid &trap)
{
XTrapezoid xtrap;
xtrap.top = Q27Dot5ToXFixed(trap.top);
xtrap.bottom = Q27Dot5ToXFixed(trap.bottom);
xtrap.left.p1.x = Q27Dot5ToXFixed(trap.topLeft->x);
xtrap.left.p1.y = Q27Dot5ToXFixed(trap.topLeft->y);
xtrap.left.p2.x = Q27Dot5ToXFixed(trap.bottomLeft->x);
xtrap.left.p2.y = Q27Dot5ToXFixed(trap.bottomLeft->y);
xtrap.right.p1.x = Q27Dot5ToXFixed(trap.topRight->x);
xtrap.right.p1.y = Q27Dot5ToXFixed(trap.topRight->y);
xtrap.right.p2.x = Q27Dot5ToXFixed(trap.bottomRight->x);
xtrap.right.p2.y = Q27Dot5ToXFixed(trap.bottomRight->y);
traps->append(xtrap);
}
void test_tesselate_polygon(QVector<XTrapezoid> *traps, const QPointF *points, int nPoints,
bool winding)
{
TestTessellator t;
t.traps = traps;
t.setWinding(winding);
t.tessellate(points, nPoints);
}
void test_tessellate_polygon_convex(QVector<XTrapezoid> *traps, const QPointF *points, int nPoints,
bool winding)
{
TestTessellator t;
t.traps = traps;
t.setWinding(winding);
t.tessellateConvex(points, nPoints);
}
void test_tessellate_polygon_rect(QVector<XTrapezoid> *traps, const QPointF *points, int nPoints,
bool winding)
{
// 5 points per rect
if (nPoints % 5 != 0)
qWarning() << Q_FUNC_INFO << "multiples of 5 points expected";
TestTessellator t;
t.traps = traps;
t.setWinding(winding);
for (int i = 0; i < nPoints / 5; ++i) {
QPointF rectA = points[5*i];
QPointF rectB = points[5*i+1];
QPointF rectC = points[5*i+2];
QPointF rectD = points[5*i+3];
QPointF a = (rectA + rectD) * 0.5;
QPointF b = (rectB + rectC) * 0.5;
QPointF delta = rectA - rectD;
qreal width = sqrt(delta.x() * delta.x() + delta.y() * delta.y());
t.tessellateRect(a, b, width);
}
}
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