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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml module 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 "qsgsimpletexturenode.h"
QT_BEGIN_NAMESPACE
static void qsgsimpletexturenode_update(QSGGeometry *g,
QSGTexture *texture,
const QRectF &rect)
{
if (!texture)
return;
QSize ts = texture->textureSize();
QRectF sourceRect(0, 0, ts.width(), ts.height());
QSGGeometry::updateTexturedRectGeometry(g, rect, texture->convertToNormalizedSourceRect(sourceRect));
}
/*!
\class QSGSimpleTextureNode
\brief The QSGSimpleTextureNode class is provided for convenience to easily draw
textured content using the QML scene graph.
\inmodule QtQuick
\warning The simple texture node class must have a texture before being
added to the scene graph to be rendered.
*/
/*!
Constructs a new simple texture node
*/
QSGSimpleTextureNode::QSGSimpleTextureNode()
: m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4)
{
setGeometry(&m_geometry);
setMaterial(&m_material);
setOpaqueMaterial(&m_opaque_material);
}
/*!
Sets the filtering to be used for this texture node to \a filtering.
For smooth scaling, use QSGTexture::Linear; for normal scaling, use
QSGTexture::Nearest.
*/
void QSGSimpleTextureNode::setFiltering(QSGTexture::Filtering filtering)
{
if (m_material.filtering() == filtering)
return;
m_material.setFiltering(filtering);
m_opaque_material.setFiltering(filtering);
markDirty(DirtyMaterial);
}
/*!
Returns the filtering currently set on this texture node
*/
QSGTexture::Filtering QSGSimpleTextureNode::filtering() const
{
return m_material.filtering();
}
/*!
Sets the target rect of this texture node to \a r.
*/
void QSGSimpleTextureNode::setRect(const QRectF &r)
{
if (m_rect == r)
return;
m_rect = r;
qsgsimpletexturenode_update(&m_geometry, texture(), m_rect);
markDirty(DirtyGeometry);
}
/*!
\fn void QSGSimpleTextureNode::setRect(qreal x, qreal y, qreal w, qreal h)
\overload
Sets the rectangle of this texture node to begin at (\a x, \a y) and have
width \a w and height \a h.
*/
/*!
Returns the target rect of this texture node.
*/
QRectF QSGSimpleTextureNode::rect() const
{
return m_rect;
}
/*!
Sets the texture of this texture node to \a texture.
\warning A texture node must have a texture before being added
to the scenegraph to be rendered.
*/
void QSGSimpleTextureNode::setTexture(QSGTexture *texture)
{
if (m_material.texture() == texture)
return;
m_material.setTexture(texture);
m_opaque_material.setTexture(texture);
qsgsimpletexturenode_update(&m_geometry, texture, m_rect);
markDirty(DirtyMaterial);
}
/*!
Returns the texture for this texture node
*/
QSGTexture *QSGSimpleTextureNode::texture() const
{
return m_material.texture();
}
QT_END_NAMESPACE
|
