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
62
63
64
65
66
67
|
/* This file is part of the KDE project
* Copyright (C) 2007 Jan Hambrecht <jaham@gmx.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KOENHANCEDPATHCOMMAND_H
#define KOENHANCEDPATHCOMMAND_H
#include <QChar>
#include <QList>
#include <QPointF>
#include <QRectF>
class EnhancedPathShape;
class EnhancedPathParameter;
class KoPathPoint;
/**
* A EnhancedPathCommand is a command like moveto, curveto, etc.
* that directly modifies an enhanced paths outline.
*/
class EnhancedPathCommand
{
public:
/// Constructs a new command from the given command type
EnhancedPathCommand(const QChar & command, EnhancedPathShape *parent);
~EnhancedPathCommand();
/// Executes the command on the specified path shape
bool execute();
/// Adds a new parameter to the command
void addParameter(EnhancedPathParameter *parameter);
/// Returns a string representation of the command
QString toString() const;
private:
/// Returns a list of points, created from the parameter list
QVector<QPointF> pointsFromParameters() const;
/// Calculates angle from given point
qreal angleFromPoint(const QPointF &point) const;
/// Returns sweep angle from start to stop and given direction
qreal radSweepAngle(qreal start, qreal stop, bool clockwise) const;
/// Returns sweep angle from start to stop and given direction
qreal degSweepAngle(qreal start, qreal stop, bool clockwise) const;
/// Returns the last path point of given path
KoPathPoint *lastPathPoint() const;
/// Returns rectangle from given points
QRectF rectFromPoints(const QPointF &tl, const QPointF &br) const;
QChar m_command; ///< the actual command
QList<EnhancedPathParameter*> m_parameters; ///< the commands parameters
EnhancedPathShape *m_parent; ///< the enhanced path owning the command
};
#endif // KOENHANCEDPATHCOMMAND_H
|
