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
68
69
70
|
/****************************************************************************
**
** Copyright (C) 2016 Jochen Becher
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include <QtGlobal>
QT_BEGIN_NAMESPACE
class QPolygonF;
class QLineF;
class QPointF;
class QRectF;
class QSizeF;
QT_END_NAMESPACE
namespace qmt {
class GeometryUtilities
{
GeometryUtilities() = delete;
public:
enum Side {
SideUnspecified,
SideTop,
SideBottom,
SideLeft,
SideRight
};
static QLineF stretch(const QLineF &line, double p1Extension, double p2Extension);
static bool intersect(const QPolygonF &polygon, const QLineF &line,
QPointF *intersectionPoint, QLineF *intersectionLine = nullptr);
static bool placeRectAtLine(const QRectF &rect, const QLineF &line, double lineOffset,
double distance, const QLineF &intersectionLine, QPointF *placement,
Side *horizontalAlignedSide);
static double calcAngle(const QLineF &line);
static double calcDistancePointToLine(const QPointF &point, const QLineF &line);
static QPointF calcProjection(const QLineF &line, const QPointF &point);
static QPointF calcPrimaryAxisDirection(const QLineF &line);
static QPointF calcSecondaryAxisDirection(const QLineF &line);
static void adjustPosAndRect(QPointF *pos, QRectF *rect, const QPointF &topLeftDelta,
const QPointF &bottomRightDelta, const QPointF &relativeAlignment);
static QSizeF ensureMinimumRasterSize(const QSizeF &size, double rasterWidth,
double rasterHeight);
};
} // namespace qmt
|
