no plot histogram, messages work

git-svn-id: file:///afs/psi.ch/project/sls_det_software/svn/slsDetectorGui@16 af1100a4-978c-4157-bff7-07162d2ba061

slsDetectorGui/include/qDebugStream.h

@@ -0,0 +1,113 @@
+/*
+ * qDebugStream.h
+ *
+ *  Created on: Jun 28, 2012
+ *      Author: Anna Bergamaschi
+ */
+
+#ifndef QDEBUGSTREAM_H_
+#define QDEBUGSTREAM_H_
+
+
+#include <QApplication>
+#include <QWidget>
+#include <QString>
+#include <QEvent>
+#include <QCustomEvent>
+
+#include <iostream>
+#include <streambuf>
+#include <string>
+using namespace std;
+
+#define STREAMEVENT 60001
+
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------
+
+class qStreamEvent:public QEvent{
+public:
+	qStreamEvent(QString s):QEvent(static_cast<QEvent::Type>(STREAMEVENT)) {str=s;};
+	/** \returns the progress index */
+	QString getString() {return str;};
+private:
+	QString str;
+
+};
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------
+
+class qDebugStream : public basic_streambuf<char> {
+
+public:
+	qDebugStream(ostream &stream, QWidget* w) : m_stream(stream), log_window(w) {
+		m_old_buf = stream.rdbuf();
+		stream.rdbuf(this);
+	};
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------
+
+	~qDebugStream(){
+		// output anything that is left
+		if (!m_string.empty()) {
+			qStreamEvent *ce=new qStreamEvent(m_string.c_str());
+			QApplication::postEvent(log_window, ce);
+#ifdef VERBOSE
+			cerr << m_string << endl;
+#endif
+		}
+		m_stream.rdbuf(m_old_buf);
+	}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------
+
+protected:
+	virtual int_type overflow(int_type v){
+		if (v == '\n'){
+			qStreamEvent *ce=new qStreamEvent(m_string.c_str());
+			QApplication::postEvent(log_window, ce);
+#ifdef VERBOSE
+			cerr << m_string << endl;
+#endif
+			m_string.erase(m_string.begin(), m_string.end());
+		}
+		else
+			m_string += v;
+		return v;
+	}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------
+
+	virtual streamsize xsputn(const char *p, streamsize n)	{
+		m_string.append(p, p + n);
+		uint pos = 0;
+
+		while (pos != string::npos)
+		{
+			pos = m_string.find('\n');
+			if (pos != string::npos)
+			{
+				string tmp(m_string.begin(), m_string.begin() + pos);
+				qStreamEvent *ce=new qStreamEvent(tmp.c_str());
+				QApplication::postEvent(log_window, ce);
+#ifdef VERBOSE
+				cerr << tmp << endl;
+#endif
+				m_string.erase(m_string.begin(), m_string.begin() + pos + 1);
+			}
+		}
+		return n;
+	}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------
+
+private:
+	ostream &m_stream;
+	streambuf *m_old_buf;
+	string m_string;
+	QWidget* log_window;
+};
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------
+
+#endif /* QDEBUGSTREAM_H_ */