1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
50
51#ifndef INTERFACES_H
52#define INTERFACES_H
53
54#include <QtPlugin>
55
56QT_BEGIN_NAMESPACE
57class QImage;
58class QPainter;
59class QWidget;
60class QPainterPath;
61class QPoint;
62class QRect;
63class QString;
64class QStringList;
65QT_END_NAMESPACE
66
67//! [0]
68class BrushInterface
69{
70public:
71 virtual ~BrushInterface() = default;
72
73 virtual QStringList brushes() const = 0;
74 virtual QRect mousePress(const QString &brush, QPainter &painter,
75 const QPoint &pos) = 0;
76 virtual QRect mouseMove(const QString &brush, QPainter &painter,
77 const QPoint &oldPos, const QPoint &newPos) = 0;
78 virtual QRect mouseRelease(const QString &brush, QPainter &painter,
79 const QPoint &pos) = 0;
80};
81//! [0]
82
83//! [1]
84class ShapeInterface
85{
86public:
87 virtual ~ShapeInterface() = default;
88
89 virtual QStringList shapes() const = 0;
90 virtual QPainterPath generateShape(const QString &shape,
91 QWidget *parent) = 0;
92};
93//! [1]
94
95//! [2]
96class FilterInterface
97{
98public:
99 virtual ~FilterInterface() = default;
100
101 virtual QStringList filters() const = 0;
102 virtual QImage filterImage(const QString &filter, const QImage &image,
103 QWidget *parent) = 0;
104};
105//! [2]
106
107QT_BEGIN_NAMESPACE
108//! [3] //! [4]
109#define BrushInterface_iid "org.qt-project.Qt.Examples.PlugAndPaint.BrushInterface/1.0"
110
111Q_DECLARE_INTERFACE(BrushInterface, BrushInterface_iid)
112//! [3]
113
114#define ShapeInterface_iid "org.qt-project.Qt.Examples.PlugAndPaint.ShapeInterface/1.0"
115
116Q_DECLARE_INTERFACE(ShapeInterface, ShapeInterface_iid)
117//! [5]
118#define FilterInterface_iid "org.qt-project.Qt.Examples.PlugAndPaint.FilterInterface/1.0"
119
120Q_DECLARE_INTERFACE(FilterInterface, FilterInterface_iid)
121//! [4] //! [5]
122QT_END_NAMESPACE
123
124#endif
125

source code of qtbase/examples/widgets/tools/plugandpaint/app/interfaces.h