summaryrefslogtreecommitdiffstats
path: root/src/kernel/qpolygonscanner.h
blob: 423e2e1db0d41c0fab6338a937daa5880a904de9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
/****************************************************************************
**
** Definition of QPolygonScanner class
**
** Created : 000120
**
** Copyright (C) 1999-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at [email protected].
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file.  Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/

#ifndef QPOLYGONSCANNER_H
#define QPOLYGONSCANNER_H

#ifndef QT_H
#include "qglobal.h"
#endif // QT_H

class QPointArray;
class QPoint;

class Q_EXPORT QPolygonScanner {
public:
    // BIC: fix for 3.0
    void scan( const QPointArray& pa, bool winding, int index=0, int npoints=-1 );
    void scan( const QPointArray& pa, bool winding, int index, int npoints, bool stitchable );
    enum Edge { Left=1, Right=2, Top=4, Bottom=8 };
    void scan( const QPointArray& pa, bool winding, int index, int npoints, Edge edges );
    virtual void processSpans( int n, QPoint* point, int* width )=0;
};

#endif // QPOLYGONSCANNER_H