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<h1>/home/jonas/Development/arc-gui-clients/src/arcstat-ui/qdebugstream.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef QDEBUGSTREAM_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define QDEBUGSTREAM_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="comment">//################</span>
<a name="l00005"></a>00005 <span class="comment">//# qdebugstream.h #</span>
<a name="l00006"></a>00006 <span class="comment">//################</span>
<a name="l00007"></a>00007
<a name="l00008"></a>00008 <span class="preprocessor">#include <iostream></span>
<a name="l00009"></a>00009 <span class="preprocessor">#include <streambuf></span>
<a name="l00010"></a>00010 <span class="preprocessor">#include <string></span>
<a name="l00011"></a>00011 <span class="preprocessor">#include <QMutex></span>
<a name="l00012"></a>00012 <span class="preprocessor">#include <QMutexLocker></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include <QString></span>
<a name="l00014"></a>00014 <span class="preprocessor">#include <QMainWindow></span>
<a name="l00015"></a>00015 <span class="preprocessor">#include <QApplication></span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#include "qtextedit.h"</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="preprocessor">#include <QCustomEvent></span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="comment">// Define your custom event identifier</span>
<a name="l00022"></a>00022 <span class="keyword">const</span> QEvent::Type DEBUG_STREAM_EVENT = <span class="keyword">static_cast<</span>QEvent::Type<span class="keyword">></span>(QEvent::User + 1);
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="comment">// Define your custom event subclass</span>
<a name="l00025"></a>00025 <span class="keyword">class </span><a class="code" href="classDebugStreamEvent.html">DebugStreamEvent</a> : <span class="keyword">public</span> QEvent
<a name="l00026"></a>00026 {
<a name="l00027"></a>00027 <span class="keyword">public</span>:
<a name="l00028"></a>00028 <a class="code" href="classDebugStreamEvent.html">DebugStreamEvent</a>(<span class="keyword">const</span> QString& outputText):
<a name="l00029"></a>00029 QEvent(DEBUG_STREAM_EVENT),
<a name="l00030"></a>00030 m_outputText(outputText)
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033
<a name="l00034"></a>00034 QString getOutputText()<span class="keyword"> const</span>
<a name="l00035"></a>00035 <span class="keyword"> </span>{
<a name="l00036"></a>00036 <span class="keywordflow">return</span> m_outputText;
<a name="l00037"></a>00037 }
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">private</span>:
<a name="l00040"></a>00040 QString m_outputText;
<a name="l00041"></a>00041 };
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">class </span><a class="code" href="classQDebugStream.html">QDebugStream</a> : <span class="keyword">public</span> std::basic_streambuf<char>
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045 <span class="keyword">public</span>:
<a name="l00046"></a>00046 <a class="code" href="classQDebugStream.html">QDebugStream</a>(std::ostream &stream, QMainWindow* mainWindow) : m_stream(stream)
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048 m_mainWindow = mainWindow;
<a name="l00049"></a>00049 m_old_buf = stream.rdbuf();
<a name="l00050"></a>00050 stream.rdbuf(<span class="keyword">this</span>);
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052 ~<a class="code" href="classQDebugStream.html">QDebugStream</a>()
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 <span class="comment">// output anything that is left</span>
<a name="l00055"></a>00055 QMutexLocker locker(&m_mutex);
<a name="l00056"></a>00056 <span class="keywordflow">if</span> (!m_string.empty()) {
<a name="l00057"></a>00057
<a name="l00058"></a>00058 QString appendString = m_string.c_str();
<a name="l00059"></a>00059 QApplication::postEvent(m_mainWindow, <span class="keyword">new</span> <a class="code" href="classDebugStreamEvent.html">DebugStreamEvent</a>(appendString));
<a name="l00060"></a>00060 <span class="comment">//log_window->append(appendString);</span>
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062
<a name="l00063"></a>00063 m_stream.rdbuf(m_old_buf);
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="keyword">protected</span>:
<a name="l00067"></a>00067 <span class="keyword">virtual</span> int_type overflow(int_type v)
<a name="l00068"></a>00068 {
<a name="l00069"></a>00069 QMutexLocker locker(&m_mutex);
<a name="l00070"></a>00070 <span class="keywordflow">if</span> (v == <span class="charliteral">'\n'</span>)
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 QString appendString = m_string.c_str();
<a name="l00073"></a>00073 <span class="comment">//log_window->append(appendString);</span>
<a name="l00074"></a>00074 QApplication::postEvent(m_mainWindow, <span class="keyword">new</span> <a class="code" href="classDebugStreamEvent.html">DebugStreamEvent</a>(appendString));
<a name="l00075"></a>00075 <span class="comment">// Scroll to bottom of window</span>
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="comment">//log_window->moveCursor(QTextCursor::End);</span>
<a name="l00078"></a>00078 <span class="comment">//log_window->moveCursor(QTextCursor::StartOfLine);</span>
<a name="l00079"></a>00079
<a name="l00080"></a>00080 m_string.erase(m_string.begin(), m_string.end());
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082 <span class="keywordflow">else</span>
<a name="l00083"></a>00083 m_string += v;
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keywordflow">return</span> v;
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="keyword">virtual</span> std::streamsize xsputn(<span class="keyword">const</span> <span class="keywordtype">char</span> *p, std::streamsize n)
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 QMutexLocker locker(&m_mutex);
<a name="l00091"></a>00091
<a name="l00092"></a>00092 m_string.append(p, p + n);
<a name="l00093"></a>00093
<a name="l00094"></a>00094 std::string::size_type pos = 0;
<a name="l00095"></a>00095 <span class="keywordflow">while</span> (pos != std::string::npos)
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 pos = m_string.find(<span class="charliteral">'\n'</span>);
<a name="l00098"></a>00098 <span class="keywordflow">if</span> (pos != std::string::npos)
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 std::string tmp(m_string.begin(), m_string.begin() + pos);
<a name="l00101"></a>00101 QString appendString = tmp.c_str();
<a name="l00102"></a>00102 QApplication::postEvent(m_mainWindow, <span class="keyword">new</span> <a class="code" href="classDebugStreamEvent.html">DebugStreamEvent</a>(appendString));
<a name="l00103"></a>00103 <span class="comment">//log_window->append(appendString);</span>
<a name="l00104"></a>00104 qDebug() << appendString;
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="comment">// Scroll to bottom of window</span>
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="comment">//log_window->moveCursor(QTextCursor::End);</span>
<a name="l00109"></a>00109 <span class="comment">//log_window->moveCursor(QTextCursor::StartOfLine);</span>
<a name="l00110"></a>00110
<a name="l00111"></a>00111 m_string.erase(m_string.begin(), m_string.begin() + pos + 1);
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="keywordflow">return</span> n;
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="keyword">private</span>:
<a name="l00119"></a>00119 std::ostream &m_stream;
<a name="l00120"></a>00120 std::streambuf *m_old_buf;
<a name="l00121"></a>00121 std::string m_string;
<a name="l00122"></a>00122 QMainWindow* m_mainWindow;
<a name="l00123"></a>00123 QMutex m_mutex;
<a name="l00124"></a>00124 };
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="preprocessor">#endif // QDEBUGSTREAM_H</span>
</pre></div></div>
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