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// systemtap grapher
// Copyright (C) 2009 Red Hat Inc.
//
// This file is part of systemtap, and is free software. You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
#ifndef SYSTEMTAP_GRAPHDATA_HXX
#define SYSTEMTAP_GRAPHDATA_HXX 1
#include <stdint.h>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include <tr1/memory>
#include <boost/circular_buffer.hpp>
#include <gtkmm.h>
#include "GraphStyle.hxx"
namespace systemtap
{
struct GraphDataBase;
typedef std::vector<std::tr1::shared_ptr<GraphDataBase> > GraphDataList;
struct GraphDataBase
{
virtual ~GraphDataBase() {}
typedef boost::circular_buffer<int64_t> TimeList;
GraphDataBase(TimeList::capacity_type cap = 50000)
: scale(1.0), style(&GraphStyleBar::instance), times(cap)
{
color[0] = 0.0; color[1] = 1.0; color[2] = 0.0;
}
virtual std::string elementAsString(size_t element) = 0;
// size of grid square at "normal" viewing
std::string name;
double scale;
double color[3];
GraphStyle* style;
std::string title;
std::string xAxisText;
std::string yAxisText;
TimeList times;
static GraphDataList graphData;
// signal stuff for telling everyone about changes to the data set list
static sigc::signal<void> graphDataChanged;
};
template<typename T>
class GraphData : public GraphDataBase
{
public:
typedef T data_type;
typedef boost::circular_buffer<data_type> DataList;
GraphData(typename DataList::capacity_type cap = 50000)
: GraphDataBase(cap), data(cap)
{
}
std::string elementAsString(size_t element)
{
std::ostringstream stream;
stream << data[element];
return stream.str();
}
DataList data;
};
struct CSVData
{
typedef std::pair<std::string, std::tr1::shared_ptr<GraphDataBase> >
Element;
std::vector<Element> elements;
};
inline GraphDataList& getGraphData() { return GraphDataBase::graphData; }
inline sigc::signal<void>& graphDataSignal()
{
return GraphDataBase::graphDataChanged;
}
}
#endif
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