Support for presenting multiple graphs

* grapher/Graph.hxx: New file; class for single graph display.
* grapher/Graph.cxx: New file.
* grapher/GraphData.hxx: Associate title and axis labels with graph
data and not a graph display.
* grapher/GraphWidget.hxx: Move graph-related members to Graph class.
* grapher/GraphWidget.cxx (getExtents, setExtents): Move to Graph
class
(on_expose_event): Move graph rendering to Graph.
(on_button_press_event): Delegate to Graph.
(on_motion_notify_event, on_scroll_event): Modify "active" graph.
* grapher/StapParser.cxx (findTaggedValue): New parsing helper
function.
(io_callback): Support new syntax where properties are attached to
graph data and not the entire graph.
* grapher/grapher.cxx (GrapherWindow): Don't set graph values.
* grapher/Makefile.am: Add Graph.cxx.
* testsuite/systemtap.examples/general/grapher.stp: New property syntax.

1 files changed, 9 insertions, 27 deletions

diff --git a/grapher/GraphWidget.hxx b/grapher/GraphWidget.hxx
index 86ba771d..c15f8fcd 100644
--- a/grapher/GraphWidget.hxx
+++ b/grapher/GraphWidget.hxx
@@ -6,7 +6,7 @@
 #include <tr1/memory>
 
 #include <gtkmm/drawingarea.h>
-#include "GraphData.hxx"
+#include <Graph.hxx>
 
 namespace systemtap
 {
@@ -18,19 +18,15 @@ namespace systemtap
     GraphWidget();
     virtual ~GraphWidget();
     void addGraphData(std::tr1::shared_ptr<GraphDataBase> data);
-    void getExtents(double& left, double& right, double& top, double& bottom) const;
-    void setExtents(double left, double right, double top, double bottom);
-    double getLineWidth() { return _lineWidth; }
-    void setLineWidth(double lineWidth) { _lineWidth = lineWidth; }
-    bool getAutoScaling() const { return _autoScaling; }
-    void setAutoScaling(bool val) { _autoScaling = val; }
-    std::string getTitle() const { return _title; }
-    void setTitle(const std::string& title) { _title = title; }
-    std::string getXAxisText() const { return _xAxisText; }
-    void setXAxisText(const std::string& text) { _xAxisText = text; }
-    std::string getYAxisText() const { return _yAxisText; }
-    void setYAxisText(const std::string& text) { _yAxisText = text; }
+
   protected:
+    typedef std::vector<std::tr1::shared_ptr<Graph> > GraphList;
+    GraphList _graphs;
+    // For click and drag
+    std::tr1::shared_ptr<Graph> _activeGraph;
+    // Dragging all graphs simultaneously, or perhaps seperately
+    typedef std::vector<std::pair<double, double> > DragList;
+    DragList dragCoords;
     //Override default signal handler:
     virtual bool on_expose_event(GdkEventExpose* event);
     virtual bool on_motion_notify_event(GdkEventMotion* event);
@@ -38,25 +34,11 @@ namespace systemtap
     virtual bool on_button_release_event(GdkEventButton* event);
     virtual bool on_scroll_event(GdkEventScroll* event);
     bool on_timeout();
-    typedef std::vector<std::tr1::shared_ptr<GraphDataBase> > DatasetList;
-    DatasetList _datasets;
-    double _left;
-    double _right;
-    double _top;
-    double _bottom;
-    double _lineWidth;
-    bool _autoScaling;
-    bool _autoScrolling;
-    double _zoomFactor;
     bool _trackingDrag;
     double _dragOriginX;
     double _dragOriginY;
     double _dragOrigLeft;
     double _dragOrigRight;
-    std::string _title;
-    std::string _xAxisText;
-    std::string _yAxisText;
-    std::tr1::shared_ptr<CairoPlayButton> _playButton;
   };
 }
 #endif // SYSTEMTAP_GRAPHWIDGET_H