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
|
// vim: set tabstop=4 shiftwidth=4 noexpandtab
/*
Gwenview - A simple image viewer for KDE
Copyright 2000-2004 Aur�lien G�teau
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef IMAGELOADER_H
#define IMAGELOADER_H
// Qt
#include <qasyncimageio.h>
#include <qbuffer.h>
#include <qcstring.h>
// KDE
#include <kio/job.h>
// Local
#include "tsthread/tsthread.h"
#include "imageframe.h"
#include "busylevelmanager.h"
#include "mimetypeutils.h"
#include "libgwenview_export.h"
namespace Gwenview {
class DecoderThread : public TSThread {
Q_OBJECT
public:
void setRawData(const QByteArray&);
QImage popLoadedImage();
signals:
void failed();
void succeeded();
protected:
void run();
private:
QMutex mMutex;
QByteArray mRawData;
QImage mImage;
};
class ImageLoaderPrivate;
class LIBGWENVIEW_EXPORT ImageLoader : public QObject, public QImageConsumer {
Q_OBJECT
public:
static ImageLoader* loader( const KURL& url, const QObject* owner, BusyLevel priority ); // use this instead of ctor
void release( const QObject* owner ); // use this instead of dtor
QImage processedImage() const;
ImageFrames frames() const;
QCString imageFormat() const;
QByteArray rawData() const;
QString mimeType() const;
MimeTypeUtils::Kind urlKind() const;
KURL url() const;
QRegion loadedRegion() const; // valid parts of processedImage()
bool completed() const;
signals:
void urlKindDetermined();
void sizeLoaded(int, int);
void imageChanged(const QRect&);
void imageLoaded( bool ok );
private slots:
void slotStatResult(KIO::Job*);
void slotDataReceived(KIO::Job*, const QByteArray& chunk);
void slotGetResult(KIO::Job*);
void decodeChunk();
void slotDecoderThreadFailed();
void slotDecoderThreadSucceeded();
void slotBusyLevelChanged( BusyLevel );
void ownerDestroyed();
void startLoading();
void callFinish();
private:
ImageLoader();
~ImageLoader();
void ref( const QObject* owner, BusyLevel priority );
void deref( const QObject* owner );
void suspendLoading();
void resumeLoading();
void finish( bool ok );
void startThread();
void setURL( const KURL& url );
void checkPendingStat();
void checkPendingGet();
BusyLevel priority() const;
// QImageConsumer methods
void end();
void changed(const QRect&);
void frameDone();
void frameDone(const QPoint& offset, const QRect& rect);
void setLooping(int);
void setFramePeriod(int milliseconds);
void setSize(int, int);
ImageLoaderPrivate* d;
};
} // namespace
#endif /* IMAGELOADER_H */
|
