blob: 6a2d054777e72ca13db67e602c47f409b4e8b0a6 (
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
|
/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
#include "scstreamfilter.h"
#include <cassert>
#include <QByteArray>
#include <QDataStream>
using namespace std;
ScStreamFilter::ScStreamFilter(QDataStream* stream)
{
assert(stream != NULL);
m_dataStream = stream;
m_filter = NULL;
m_filterMode = FilterToStream;
m_writtenToStream = 0;
}
ScStreamFilter::ScStreamFilter(ScStreamFilter* filter)
{
assert(filter != NULL);
m_dataStream = NULL;
m_filter = filter;
m_filterMode = FilterToFilter;
m_writtenToStream = 0;
}
bool ScStreamFilter::writeDataInternal(const char* data, int dataLen)
{
bool writeSuccess = false;
if (m_filterMode == FilterToStream)
{
int written = m_dataStream->writeRawData(data, dataLen);
m_writtenToStream += written;
writeSuccess = (written == dataLen);
}
else if (m_filterMode == FilterToFilter)
writeSuccess = m_filter->writeData(data, dataLen);
return writeSuccess;
}
bool ScStreamFilter::writeData(const QByteArray& data)
{
return writeData(data.constData(), data.size());
}
bool ScStreamFilter::openFilter (void)
{
m_writtenToStream = 0;
if (m_filterMode == FilterToFilter)
return m_filter->openFilter();
return true;
}
bool ScStreamFilter::closeFilter(void)
{
if (m_filterMode == FilterToFilter)
return m_filter->closeFilter();
return true;
}
int ScStreamFilter::writtenToStream(void)
{
if (m_filterMode == FilterToFilter)
return (m_writtenToStream + m_filter->writtenToStream());
return m_writtenToStream;
}
|
