1 files changed, 127 insertions, 0 deletions
diff --git a/grapher/grapher.cxx b/grapher/grapher.cxx
new file mode 100644
index 00000000..46182178
--- /dev/null
+++ b/grapher/grapher.cxx
@@ -0,0 +1,127 @@
+#include "GraphWidget.hxx"
+
+#include <cmath>
+#include <sstream>
+#include <string>
+#include <map>
+
+#include <gtkmm/main.h>
+#include <gtkmm/window.h>
+#include <unistd.h>
+#include <poll.h>
+
+using namespace systemtap;
+
+class StapParser
+{
+  Glib::ustring _buffer;
+  typedef std::map<std::string, std::tr1::shared_ptr<GraphData> > DataMap;
+  DataMap _dataSets;
+  Gtk::Window& _win;
+  GraphWidget& _widget;
+public:
+  StapParser(Gtk::Window& win,
+             GraphWidget& widget) : _win(win), _widget(widget) {}
+  
+  bool ioCallback(Glib::IOCondition ioCondition)
+  {
+    if ((ioCondition & Glib::IO_IN) == 0)
+      return true;
+    char buf[256];
+    ssize_t bytes_read = 0;
+    bytes_read = read(0, buf, sizeof(buf) - 1);
+    if (bytes_read <= 0)
+      {
+        _win.hide();
+        return true;
+      }
+    buf[bytes_read] = '\0';
+    _buffer += buf;
+    Glib::ustring::size_type ret = Glib::ustring::npos;
+    while ((ret = _buffer.find('\n')) != Glib::ustring::npos)
+      {
+        Glib::ustring dataString(_buffer, 0, ret);
+        if (dataString[0] == '%')
+          {
+            size_t found;
+            if ((found = dataString.find("%Title:") == 0))
+              {
+                std::string title = dataString.substr(7);
+                _widget.setTitle(title);
+              }
+            else if ((found = dataString.find("%XAxisTitle:") == 0))
+              {
+                _widget.setXAxisText(dataString.substr(12));
+              }
+            else if ((found = dataString.find("%YAxisTitle:") == 0))
+              {
+                _widget.setYAxisText(dataString.substr(12));
+              }
+            else if ((found = dataString.find("%YMax:") == 0))
+              {
+                double ymax;
+                std::istringstream stream(dataString.substr(6));
+                stream >> ymax;
+                // _gdata->scale = ymax;
+              }
+            else if ((found = dataString.find("%DataSet:") == 0))
+              {
+                std::tr1::shared_ptr<GraphData> dataSet(new GraphData);
+                std::string setName;
+                int hexColor;
+                std::string style;
+                std::istringstream stream(dataString.substr(9));
+                stream >> setName >> dataSet->scale >> std::hex >> hexColor
+                       >> style;
+                dataSet->color[0] = (hexColor >> 16) / 255.0;
+                dataSet->color[1] = ((hexColor >> 8) & 0xff) / 255.0;
+                dataSet->color[2] = (hexColor & 0xff) / 255.0;
+                if (style == "dot")
+                  dataSet->style = GraphData::DOT;
+                _dataSets.insert(std::make_pair(setName, dataSet));
+                _widget.addGraphData(dataSet);
+              }
+          }
+        else
+          {
+            std::string dataSet;
+            double time;
+            double data;
+            std::istringstream stream(dataString);
+            stream >> dataSet >> time >> data;
+            DataMap::iterator itr = _dataSets.find(dataSet);
+            if (itr != _dataSets.end())
+              itr->second->data.push_back(std::make_pair(time, data));
+          }
+        _buffer.erase(0, ret + 1);
+      }
+    return true;
+  }
+};
+
+int main(int argc, char** argv)
+{
+   Gtk::Main app(argc, argv);
+
+   Gtk::Window win;
+
+   win.set_title("Grapher");
+   win.set_default_size(600, 200);
+
+   GraphWidget w;
+   
+   w.setExtents(0.0, 1.0, 5.0, 0.0);
+   w.setLineWidth(2);
+
+   StapParser stapParser(win, w);
+   Glib::signal_io().connect(sigc::mem_fun(stapParser,
+                                           &StapParser::ioCallback),
+                             0,
+                             Glib::IO_IN);
+   win.add(w);
+   w.show();
+
+   Gtk::Main::run(win);
+
+   return 0;
+}