blob: 9277e5009a58e65e7f0fc0d5e1f8ac242215784d (
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
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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the TGA plugin in the Qt ImageFormats module.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 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 Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** 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-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qtgahandler.h"
#include "qtgafile.h"
#include <QtCore/QVariant>
#include <QtCore/QDebug>
#include <QtGui/QImage>
QT_BEGIN_NAMESPACE
QTgaHandler::QTgaHandler()
: QImageIOHandler()
, tga(0)
{
}
QTgaHandler::~QTgaHandler()
{
delete tga;
}
bool QTgaHandler::canRead() const
{
if (!tga)
tga = new QTgaFile(device());
if (tga->isValid())
{
setFormat("tga");
return true;
}
return false;
}
bool QTgaHandler::canRead(QIODevice *device)
{
if (!device) {
qWarning("QTgaHandler::canRead() called with no device");
return false;
}
// TGA reader implementation needs a seekable QIODevice, so
// sequential devices are not supported
if (device->isSequential())
return false;
qint64 pos = device->pos();
bool isValid;
{
QTgaFile tga(device);
isValid = tga.isValid();
}
device->seek(pos);
return isValid;
}
bool QTgaHandler::read(QImage *image)
{
if (!canRead())
return false;
*image = tga->readImage();
return !image->isNull();
}
#if QT_DEPRECATED_SINCE(5, 13)
QByteArray QTgaHandler::name() const
{
return "tga";
}
#endif
QVariant QTgaHandler::option(ImageOption option) const
{
if (option == Size && canRead()) {
return tga->size();
} else if (option == CompressionRatio) {
return tga->compression();
} else if (option == ImageFormat) {
return QImage::Format_ARGB32;
}
return QVariant();
}
void QTgaHandler::setOption(ImageOption option, const QVariant &value)
{
Q_UNUSED(option);
Q_UNUSED(value);
}
bool QTgaHandler::supportsOption(ImageOption option) const
{
return option == CompressionRatio
|| option == Size
|| option == ImageFormat;
}
QT_END_NAMESPACE
|
