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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_GRAPHSTYLE_HXX
#define SYSTEMTAP_GRAPHSTYLE_HXX 1
#include <tr1/memory>
#include <cairomm/context.h>
namespace systemtap
{
class GraphDataBase;
class Graph;
class GraphStyle
{
public:
virtual void draw(std::tr1::shared_ptr<GraphDataBase> graphData,
Graph* graph, Cairo::RefPtr<Cairo::Context> cr) = 0;
virtual ssize_t dataIndexAtPoint(double x, double y,
std::tr1::shared_ptr<GraphDataBase>
graphData,
std::tr1::shared_ptr<Graph> graph)
{
return -1;
}
};
class GraphStyleBar : public GraphStyle
{
public:
void draw(std::tr1::shared_ptr<GraphDataBase> graphData,
Graph* graph, Cairo::RefPtr<Cairo::Context> cr);
static GraphStyleBar instance;
ssize_t dataIndexAtPoint(double x, double y,
std::tr1::shared_ptr<GraphDataBase> graphData,
std::tr1::shared_ptr<Graph> graph);
};
class GraphStyleDot : public GraphStyle
{
public:
void draw(std::tr1::shared_ptr<GraphDataBase> graphData,
Graph* graph, Cairo::RefPtr<Cairo::Context> cr);
static GraphStyleDot instance;
};
class GraphStyleEvent : public GraphStyle
{
public:
void draw(std::tr1::shared_ptr<GraphDataBase> graphData,
Graph* graph, Cairo::RefPtr<Cairo::Context> cr);
virtual ssize_t dataIndexAtPoint(double x, double y,
std::tr1::shared_ptr<GraphDataBase>
graphData,
std::tr1::shared_ptr<Graph> graph);
static GraphStyleEvent instance;
};
}
#endif
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