Hi again,
I have another problem: I try to connect "Control + mouse drag" to some
zoom event. On mouse press, I need to check whether the Ctrol key is
pressed:
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import random
import sys
from PyQt4 import QtGui, QtCore
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure,SubplotParams
class InnerDiagramWidget(FigureCanvas):
def __init__(self, parent):
fig = Figure()
fig.add_subplot(111)
FigureCanvas.__init__(self, fig)
self.setParent(parent)
self.mpl_connect('button_press_event', self.on_button_press)
def on_button_press(self, event):
print event.key, event.button, event.xdata
if event.key == 'control':
print 'This should start the zoom but never happens'
a = QtGui.QApplication(sys.argv)
w = QtGui.QMainWindow()
w.setCentralWidget(InnerDiagramWidget(w))
w.show()
a.exec_()
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The key returned here is always None. Why??? The API
(matplotlib.backend_bases.MouseEvent) says that it should return
"control"?
$ uname -a
Linux myos 2.6.27.21-0.1-default #1 SMP 2009-03-31 14:50:44 +0200 x86_64 x86_64 x86_64 GNU/Linux
$ python -c "import matplotlib; print matplotlib.__version__"
0.98.5.2
I guess this is a bug in matplotlib? Can one confirm that?
Best regards
Ole