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Backport PR #2384: Adapt inline backend to changes in matplotlib...
Backport PR #2384: Adapt inline backend to changes in matplotlib Matplotlib recently merged https://github.com/matplotlib/matplotlib/pull/1125 that makes it simpler to use objective oriented figure creation by automatically creating the right canvas for the backend. To solve that all backends must provide a backend_xxx.FigureCanvas. This is obviosly missing from the inline backend. The change is needed to make the inline backend work with mpl's 1.2.x branch which is due to released soon. Simply setting the default canvas equal to a Agg canvas appears to work for both svg and png figures but I'm not sure weather that is the right approach. Should the canvas depend on the figure format and provide a svg canvas for a svg figure? (Note that before this change to matplotlib the canvas from a plt.figure call seams to be a agg type in all cases) Edit: I made the pull request against 0.13.1 since it would be good to have this in the stable branch for when mpl is released. Just let me know and I can rebase it against master

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wxIPython.py
266 lines | 9.9 KiB | text/x-python | PythonLexer
#!/usr/bin/python
# -*- coding: iso-8859-15 -*-
import wx.aui
import sys
#used for about dialog
from wx.lib.wordwrap import wordwrap
#used for ipython GUI objects
from IPython.gui.wx.ipython_view import IPShellWidget
from IPython.gui.wx.ipython_history import IPythonHistoryPanel
#used to invoke ipython1 wx implementation
### FIXME ### temporary disabled due to interference with 'show_in_pager' hook
is_sync_frontend_ok = False
try:
from IPython.frontend.wx.ipythonx import IPythonXController
except ImportError:
is_sync_frontend_ok = False
#used to create options.conf file in user directory
from IPython.core.ipapi import get
__version__ = 0.91
__author__ = "Laurent Dufrechou"
__email__ = "laurent.dufrechou _at_ gmail.com"
__license__ = "BSD"
#-----------------------------------------
# Creating one main frame for our
# application with movables windows
#-----------------------------------------
class MyFrame(wx.Frame):
"""Creating one main frame for our
application with movables windows"""
def __init__(self, parent=None, id=-1, title="WxIPython",
pos=wx.DefaultPosition,
size=(800, 600), style=wx.DEFAULT_FRAME_STYLE, sync_ok=False):
wx.Frame.__init__(self, parent, id, title, pos, size, style)
self._mgr = wx.aui.AuiManager()
# notify PyAUI which frame to use
self._mgr.SetManagedWindow(self)
#create differents panels and make them persistant
self.history_panel = IPythonHistoryPanel(self)
self.history_panel.setOptionTrackerHook(self.optionSave)
self.ipython_panel = IPShellWidget(self,background_color = "BLACK")
#self.ipython_panel = IPShellWidget(self,background_color = "WHITE")
if(sync_ok):
self.ipython_panel2 = IPythonXController(self)
else:
self.ipython_panel2 = None
self.ipython_panel.setHistoryTrackerHook(self.history_panel.write)
self.ipython_panel.setStatusTrackerHook(self.updateStatus)
self.ipython_panel.setAskExitHandler(self.OnExitDlg)
self.ipython_panel.setOptionTrackerHook(self.optionSave)
#Create a notebook to display different IPython shell implementations
self.nb = wx.aui.AuiNotebook(self)
self.optionLoad()
self.statusbar = self.createStatus()
self.createMenu()
########################################################################
### add the panes to the manager
# main panels
self._mgr.AddPane(self.nb , wx.CENTER, "IPython Shells")
self.nb.AddPage(self.ipython_panel , "IPython0 Shell")
if(sync_ok):
self.nb.AddPage(self.ipython_panel2, "IPython1 Synchroneous Shell")
self._mgr.AddPane(self.history_panel , wx.RIGHT, "IPython history")
# now we specify some panel characteristics
self._mgr.GetPane(self.ipython_panel).CaptionVisible(True);
self._mgr.GetPane(self.history_panel).CaptionVisible(True);
self._mgr.GetPane(self.history_panel).MinSize((200,400));
# tell the manager to "commit" all the changes just made
self._mgr.Update()
#global event handling
self.Bind(wx.EVT_CLOSE, self.OnClose)
self.Bind(wx.EVT_MENU, self.OnClose,id=wx.ID_EXIT)
self.Bind(wx.EVT_MENU, self.OnShowIPythonPanel,id=wx.ID_HIGHEST+1)
self.Bind(wx.EVT_MENU, self.OnShowHistoryPanel,id=wx.ID_HIGHEST+2)
self.Bind(wx.EVT_MENU, self.OnShowAbout, id=wx.ID_HIGHEST+3)
self.Bind(wx.EVT_MENU, self.OnShowAllPanel,id=wx.ID_HIGHEST+6)
warn_text = 'Hello from IPython and wxPython.\n'
warn_text +='Please Note that this work is still EXPERIMENTAL\n'
warn_text +='It does NOT emulate currently all the IPython functions.\n'
warn_text +="\nIf you use MATPLOTLIB with show() you'll need to deactivate the THREADING option.\n"
if(not sync_ok):
warn_text +="\n->No twisted package detected, IPython1 example deactivated."
dlg = wx.MessageDialog(self,
warn_text,
'Warning Box',
wx.OK | wx.ICON_INFORMATION
)
dlg.ShowModal()
dlg.Destroy()
def optionSave(self, name, value):
ip = get()
path = ip.ipython_dir
opt = open(path + '/options.conf','w')
try:
options_ipython_panel = self.ipython_panel.getOptions()
options_history_panel = self.history_panel.getOptions()
for key in options_ipython_panel.keys():
opt.write(key + '=' + options_ipython_panel[key]['value']+'\n')
for key in options_history_panel.keys():
opt.write(key + '=' + options_history_panel[key]['value']+'\n')
finally:
opt.close()
def optionLoad(self):
try:
ip = get()
path = ip.ipython_dir
opt = open(path + '/options.conf','r')
lines = opt.readlines()
opt.close()
options_ipython_panel = self.ipython_panel.getOptions()
options_history_panel = self.history_panel.getOptions()
for line in lines:
key = line.split('=')[0]
value = line.split('=')[1].replace('\n','').replace('\r','')
if key in options_ipython_panel.keys():
options_ipython_panel[key]['value'] = value
elif key in options_history_panel.keys():
options_history_panel[key]['value'] = value
else:
print >>sys.__stdout__,"Warning: key ",key,"not found in widget options. Check Options.conf"
self.ipython_panel.reloadOptions(options_ipython_panel)
self.history_panel.reloadOptions(options_history_panel)
except IOError:
print >>sys.__stdout__,"Could not open Options.conf, defaulting to default values."
def createMenu(self):
"""local method used to create one menu bar"""
mb = wx.MenuBar()
file_menu = wx.Menu()
file_menu.Append(wx.ID_EXIT, "Exit")
view_menu = wx.Menu()
view_menu.Append(wx.ID_HIGHEST+1, "Show IPython Panel")
view_menu.Append(wx.ID_HIGHEST+2, "Show History Panel")
view_menu.AppendSeparator()
view_menu.Append(wx.ID_HIGHEST+6, "Show All")
about_menu = wx.Menu()
about_menu.Append(wx.ID_HIGHEST+3, "About")
mb.Append(file_menu, "File")
mb.Append(view_menu, "View")
mb.Append(about_menu, "About")
#mb.Append(options_menu, "Options")
self.SetMenuBar(mb)
def createStatus(self):
statusbar = self.CreateStatusBar(2, wx.ST_SIZEGRIP)
statusbar.SetStatusWidths([-2, -3])
statusbar.SetStatusText("Ready", 0)
statusbar.SetStatusText("WxIPython "+str(__version__), 1)
return statusbar
def updateStatus(self,text):
states = {'IDLE':'Idle',
'DO_EXECUTE_LINE':'Send command',
'WAIT_END_OF_EXECUTION':'Running command',
'WAITING_USER_INPUT':'Waiting user input',
'SHOW_DOC':'Showing doc',
'SHOW_PROMPT':'Showing prompt'}
self.statusbar.SetStatusText(states[text], 0)
def OnClose(self, event):
"""#event used to close program """
# deinitialize the frame manager
self._mgr.UnInit()
self.Destroy()
event.Skip()
def OnExitDlg(self, event):
dlg = wx.MessageDialog(self, 'Are you sure you want to quit WxIPython',
'WxIPython exit',
wx.ICON_QUESTION |
wx.YES_NO | wx.NO_DEFAULT
)
if dlg.ShowModal() == wx.ID_YES:
dlg.Destroy()
self._mgr.UnInit()
self.Destroy()
dlg.Destroy()
#event to display IPython pannel
def OnShowIPythonPanel(self,event):
""" #event to display Boxpannel """
self._mgr.GetPane(self.ipython_panel).Show(True)
self._mgr.Update()
#event to display History pannel
def OnShowHistoryPanel(self,event):
self._mgr.GetPane(self.history_panel).Show(True)
self._mgr.Update()
def OnShowAllPanel(self,event):
"""#event to display all Pannels"""
self._mgr.GetPane(self.ipython_panel).Show(True)
self._mgr.GetPane(self.history_panel).Show(True)
self._mgr.Update()
def OnShowAbout(self, event):
# First we create and fill the info object
info = wx.AboutDialogInfo()
info.Name = "WxIPython"
info.Version = str(__version__)
info.Copyright = "(C) 2007 Laurent Dufrechou"
info.Description = wordwrap(
"A Gui that embbed a multithreaded IPython Shell",
350, wx.ClientDC(self))
info.WebSite = ("http://ipython.scipy.org/", "IPython home page")
info.Developers = [ "Laurent Dufrechou" ]
licenseText="BSD License.\nAll rights reserved. This program and the accompanying materials are made available under the terms of the BSD which accompanies this distribution, and is available at http://www.opensource.org/licenses/bsd-license.php"
info.License = wordwrap(licenseText, 500, wx.ClientDC(self))
# Then we call wx.AboutBox giving it that info object
wx.AboutBox(info)
#-----------------------------------------
#Creating our application
#-----------------------------------------
class MyApp(wx.PySimpleApp):
"""Creating our application"""
def __init__(self, sync_ok=False):
wx.PySimpleApp.__init__(self)
self.frame = MyFrame(sync_ok=sync_ok)
self.frame.Show()
#-----------------------------------------
#Main loop
#-----------------------------------------
def main():
app = MyApp(is_sync_frontend_ok)
app.SetTopWindow(app.frame)
app.MainLoop()
#if launched as main program run this
if __name__ == '__main__':
main()