[Matplotlib-users] NavigationToolbar2QT change height

[RICHARD Georges-E. <per...@gm...>]

First of all congratulation for the release 1.1.0 of matplotlib it's a 
wonderfull.
since the version 0.90 I started to use it, I keep enjoy it everyday. I 
work with PyQT4 and PySide.

I try to modify the height of the NavigationToolbar2QT, but no matter I 
use "resize" the Qt4 method nothing happen.

code available: http://pastebin.com/8KW2dWG2
#...# all Qt imports
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as 
FigureCanvas
from matplotlib.backends.backend_qt4 import NavigationToolbar2QT as 
NavigationToolbar
class MPL_widget(QWidget):
     def __init__(self,parent):
         QWidget.__init__(self,parent)
         self.canvas = FigureCanvas()
         self.toolbar = NavigationToolbar(self.canvas,self.canvas)
         self.toolbar.resize(100,10) #
         self.vbox = QVBoxLayout()
         vbox = self.vbox
         vbox.addWidget(self.canvas)
         vbox.addWidget(self.toolbar)
         self.setLayout(vbox)

I tryed to modify directly in matplotlib module 
'matplotlib.backends.backed_qt4' in the constructor of 
NavigationToolbar2QT just after the call of QToolBar.__init__(), nothing 
happen either.

finaly I added a QSplitter, which let me hide the bar during runtime, 
but my first goal was rather to reduce the size and all icon inside.
from PyQt4.QtCore import *
from PyQt4.QtGui import *
import PyQt4.QtGui as QtGui

import matplotlib
if matplotlib.get_backend() != "Qt4Agg":
     matplotlib.use("Qt4Agg")

from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as 
FigureCanvas
from matplotlib.backends.backend_qt4 import NavigationToolbar2QT as 
NavigationToolbar

from matplotlib.figure import Figure

class MPL_Widget(QWidget):
     def __init__(self, parent = None):
         QWidget.__init__(self, parent)
         self.fig = Figure(figsize = (10, 12), dpi=100, facecolor = 
'#FFFFFF')
         self.ax = self.fig.add_subplot(111, sharex = None, sharey = None)
         self.canvas = FigureCanvas(self.fig)
         self.toolbar = NavigationToolbar(self.canvas, self.canvas)
         self.toolbar.resize(10,10)                                     
                     # this line does nothing
         self.vbox = QVBoxLayout()
         tmp = self.vbox
         tmp = QSplitter()
         tmp.setOrientation(Qt.Vertical)
         tmp.setContentsMargins(0,0,0,0)
         tmp.addWidget(self.canvas)
         tmp.addWidget(self.toolbar)
         self.vbox.addWidget(tmp)
         self.setLayout(self.vbox)
         self.layout().setContentsMargins(0,0,0,0)

import sys
app = QApplication(sys.argv)
w = MPL_Widget()
import numpy as N
x = N.linspace(-10, 10)
y = N.sin(x)
ax = w.ax
ax.plot(x, y, 'o-', mew=0)
w.show()
sys.exit(app.exec_())



Any hint would be appreciate.

Cheers.
             Joe

-- 
RICHARD Georges-Emmanuel
Electronic and Computer Engineer
per...@gm...