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authorTim Moore <timoore@redhat.com>2009-12-07 12:43:56 +0100
committerTim Moore <timoore@redhat.com>2009-12-07 12:43:56 +0100
commit5891de489db0e172162279247fb633a719fa3756 (patch)
tree2cda126a35ebe9ba130299455f515618b4ab898b /grapher/Graph.cxx
parente88061ec1fb047b65c247424dbadb10a85ff69ae (diff)
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option to display graph times relative to the start time
This avoids having humongous numbers displayed on the graphs' x axis. Also, the dialog for adding a data set to a graph was cleaned up. * grapher/graph-dialog.glade: Add check box for display of relative time and a label for the data set list. Force the list of data sets to be larger. * grapher/Graph.hxx (_timeBase): new member * grapher/Graph.cxx (draw): Subtract _timeBase from displayed time value. * grapher/GraphWidget.hxx (DataModelColumns): Add a column for a data set's title, which is optional at the moment. * grapher/GraphWidget.hxx (_globalTimeBase, _timeBaseInitialized, _relativeTimesButton, _displayRelativeTimes): new members * grapher/GraphWidget.hxx (GraphWidget): Hook up check button for displaying relative time. (on_expose_event): Determine base time if needed; set base time in graphs. (onDataDialogOpen): Insert graph data set's name (key) and title into the list of data sets.
Diffstat (limited to 'grapher/Graph.cxx')
-rw-r--r--grapher/Graph.cxx4
1 files changed, 2 insertions, 2 deletions
diff --git a/grapher/Graph.cxx b/grapher/Graph.cxx
index b3429ef7..baa1182f 100644
--- a/grapher/Graph.cxx
+++ b/grapher/Graph.cxx
@@ -14,7 +14,7 @@ namespace systemtap
_graphWidth(580), _graphHeight(180),
_lineWidth(2), _autoScaling(true), _autoScrolling(true),
_zoomFactor(1.0), _xOffset(20.0), _yOffset(0.0),
- _playButton(new CairoPlayButton),
+ _playButton(new CairoPlayButton), _timeBase(0),
_left(0), _right(1), _top(5.0), _bottom(0.0)
{
setOrigin(x, y);
@@ -150,7 +150,7 @@ namespace systemtap
cr->move_to(x, _yOffset);
cr->line_to(x, _graphHeight);
std::ostringstream stream;
- stream << tickVal;
+ stream << (tickVal - _timeBase);
Cairo::TextExtents extents;
cr->get_text_extents(stream.str(), extents);
// Room for this label?