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|
--- _Gnuplot.py.orig 2003-10-17 16:28:10.000000000 +0200
+++ _Gnuplot.py 2004-10-28 14:39:20.000000000 +0200
@@ -18,6 +18,27 @@
import gp, PlotItems, termdefs
+def test_mouse():
+ """Return whether mouse support is present or not.
+
+ The detection is done by calling gnuplot with a file containing only the
+ "set mouse" command. If gnuplot does have mouse support, it should simply
+ execute the file silently, producing no output."""
+
+ import os,tempfile,commands
+
+ tmpname = tempfile.mktemp()
+ tfile = open(tmpname,"w")
+ tfile.write("set mouse")
+ tfile.close()
+ msg = commands.getoutput(gp.GnuplotOpts.gnuplot_command + " " +
+ tmpname)
+ os.unlink(tmpname)
+ if msg: # Gnuplot won"t print anything if it has mouse support
+ has_mouse = 0
+ else:
+ has_mouse = 1
+ return has_mouse
class _GnuplotFile:
"""A file to which gnuplot commands can be written.
@@ -152,7 +173,7 @@
'output' : 'string',
}
- def __init__(self, filename=None, persist=None, debug=0):
+ def __init__(self, filename=None, persist=None, debug=0, mouse=None):
"""Create a Gnuplot object.
Create a 'Gnuplot' object. By default, this starts a gnuplot
@@ -172,8 +193,19 @@
'debug=1' -- echo the gnuplot commands to stderr as well as
sending them to gnuplot.
+ "mouse=1" -- activate mouse support (officially available as of
+ gnuplot 4.0 under certain platforms).
+
"""
+ # The mouse check must be done first, so we can decide whether to use
+ # inline data and fifos or not (they break mouse support)
+ if mouse is None:
+ mouse = test_mouse()
+ if mouse:
+ gp.GnuplotOpts.prefer_inline_data = 0
+ gp.GnuplotOpts.prefer_fifo_data = 0
+
if filename is None:
self.gnuplot = gp.GnuplotProcess(persist=persist)
else:
@@ -182,10 +214,14 @@
'Gnuplot with output to file does not allow '
'persist option.')
self.gnuplot = _GnuplotFile(filename)
+
self._clear_queue()
self.debug = debug
self.plotcmd = 'plot'
- self('set terminal %s' % (gp.GnuplotOpts.default_term,))
+ # The "set mouse" command MUST be the VERY FIRST command passed to gnuplot
+ if mouse:
+ self("set mouse")
+ self("set terminal %s" % gp.GnuplotOpts.default_term)
def __call__(self, s):
"""Send a command string to gnuplot.
|
