[tauruslib-devel] [PATCH 2/2] Change width of default pen (workaround for bug-171)

[cpascual <cpa...@ce...>]

TaurusPlot defines a set of pens to use by default. They are set
with width=2. It has been found that using width=2 causes a
memory leak on replotting. Change the width to 1 to avoid
triggering this mem leak. Note that this is just a workaround for
the *default* pens. The leak will still appear if the pen is
customised (e.g. by the user)
---
 lib/taurus/qt/qtgui/plot/taurusplot.py | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/lib/taurus/qt/qtgui/plot/taurusplot.py b/lib/taurus/qt/qtgui/plot/taurusplot.py
index e931c18..b0824e8 100644
--- a/lib/taurus/qt/qtgui/plot/taurusplot.py
+++ b/lib/taurus/qt/qtgui/plot/taurusplot.py
@@ -67,13 +67,16 @@ class DummyLock(object):
 #from taurus.core.util.log import TraceIt, DebugIt, InfoIt, WarnIt
 
 
-DFT_CURVE_PENS = [Qt.QPen(Qt.Qt.red, 2),
-                 Qt.QPen(Qt.Qt.blue, 2),
-                 Qt.QPen(Qt.Qt.green, 2),
-                 Qt.QPen(Qt.Qt.magenta, 2),
-                 Qt.QPen(Qt.Qt.cyan, 2),
-                 Qt.QPen(Qt.Qt.yellow, 2),
-                 Qt.QPen(Qt.Qt.black, 2)]
+DFT_CURVE_PENS = [Qt.QPen(Qt.Qt.red),
+                 Qt.QPen(Qt.Qt.blue),
+                 Qt.QPen(Qt.Qt.green),
+                 Qt.QPen(Qt.Qt.magenta),
+                 Qt.QPen(Qt.Qt.cyan),
+                 Qt.QPen(Qt.Qt.yellow),
+                 Qt.QPen(Qt.Qt.black)]
+
+for __p in DFT_CURVE_PENS:
+    __p.setWidth(1) # TODO: we would like this to be 2, but bug #171 forces 1
 
 class TaurusZoomer(Qwt5.QwtPlotZoomer):
     '''A QwtPlotZoomer that displays the label assuming that X values are timestamps'''
-- 
2.1.4