def find_backends(self, key=None, plot=None):
matches = self.backends
if key is not None:
klass = BackendRegistry.get_class(key)
matches = [item for item in matches if isinstance(item, klass)]
if plot is not None:
matches = [item for item in matches if repr(item.plot) == repr(plot)]
return matches
def request_backend(self, key, plot=None):
print "Requesting Backend ", key, "for plot", plot
matches = self.find_backends(key=key, plot=plot)
print "===> matches = ", matches
if len(matches) > 0:
return matches[0]
else:
backend = BackendRegistry.new_instance(key, project=self, plot=plot)
self.backends.append(backend)
return backend
def list_backends(self, verbose=True):
backends = BackendRegistry.find_instances(project=self)
rv = ["Listing %d Backends:" % len(backends)]
for backend in backends:
rv.append(" %s" % str(backend))
result = "\n".join(rv)
if verbose is True:
print result
else:
return result
def __init__(self, app):
gtk.Window.__init__(self, gtk.WINDOW_TOPLEVEL)
self.app = app
self._windows = list() # keeps track of all subwindows
self._windowlist_merge_id = None
# self.set_size_request(640,480)
self.set_gravity(gtk.gdk.GRAVITY_NORTH_WEST)
self.move(0, 0)
icon = self.render_icon("sloppy-Plot", gtk.ICON_SIZE_BUTTON)
self.set_icon(icon)
self.connect("delete-event", (lambda sender, event: app.quit()))
# self.connect("destroy", (lambda sender: app.quit()))
self.uimanager = self._construct_uimanager()
self._construct_logwindow()
# and build ui
self.uimanager.add_ui_from_string(self.ui_string)
self.add_accel_group(self.uimanager.get_accel_group())
self._construct_menubar()
self._construct_toolbar()
self._construct_treeview()
self._construct_statusbar()
self.plotbook = gtk.Notebook()
self.plotbook.show()
hpaned = gtk.HPaned()
hpaned.pack1(self.treeview_window, True, True)
# hpaned.pack2(self.plotbook, True, True)
hpaned.show()
##vpaned = gtk.VPaned()
##vpaned.pack1(self.treeview_window,True,True)
###vpaned.pack2(self.logwidget,False,True)
##vpaned.show()
# Set up vbox to hold everything...
vbox = gtk.VBox()
vbox.pack_start(self.menubar, expand=False)
vbox.pack_start(self.toolbar, expand=False)
###vbox.pack_start(self.treeview_window, expand=True, fill=True)
vbox.pack_start(hpaned, True, True)
vbox.pack_end(self.statusbar, expand=False)
vbox.show()
# ...and add vbox to the window.
self.add(vbox)
self.show()
# check for backends
has_mpl = BackendRegistry.has_key("matplotlib")
# if has_mpl is True:
self._refresh_windowlist()
for layer in self.plot.layers:
group_info = {}
self.draw_layer(layer, group_info)
self.canvas.draw()
#------------------------------------------------------------------------------
class BackendWithWindow(Backend):
def connect(self):
win = gtk.Window()
Backend.connect(self)
win.add(self.canvas)
win.connect("destroy", Backend.disconnect(self))
win.show()
def disconnect(self):
win.destroy()
#------------------------------------------------------------------------------
BackendRegistry.register('matplotlib', Backend)
BackendRegistry.register('matplotlib/w', Backend)
logger.info("Gnuplot command list:\n\n%s" % "\n".join(cmd_list))
for cmd in cmd_list:
self(cmd)
Signals.emit(self,'gnuplot-after-plot', window_title=self.window_title)
draw = redraw
# ======================================================================
class BackendDumb(Backend):
def __init__(self, *args, **kwargs):
kwargs.update({'terminal' : DumbTerminal(), 'encoding' : 'iso_8859_15'})
Backend.__init__(self, *args, **kwargs)
class BackendX11(Backend):
def __init__(self, *args, **kwargs):
kwargs.update({'terminal' : XTerminal(), 'encoding' : 'iso_8859_15'})
Backend.__init__(self, *args, **kwargs)
BackendRegistry.register('gnuplot', Backend)
BackendRegistry.register('gnuplot/dumb', BackendDumb)
BackendRegistry.register('gnuplot/x11', BackendX11)
def plot_postscript(app, project, plot):
#
# request filename
#
filename = PostscriptTerminal.build_filename('ps', project, plot)
chooser = gtk.FileChooserDialog(
title="PostScript Export",
action=gtk.FILE_CHOOSER_ACTION_SAVE,
buttons=(gtk.STOCK_CANCEL,
gtk.RESPONSE_CANCEL,
gtk.STOCK_SAVE,
gtk.RESPONSE_OK))
chooser.set_default_response(gtk.RESPONSE_OK)
chooser.set_select_multiple(False)
chooser.set_current_folder(os.path.dirname(filename))
chooser.set_current_name(os.path.basename(filename))
filter = gtk.FileFilter()
filter.set_name("All files")
filter.add_pattern("*")
chooser.add_filter(filter)
filter = gtk.FileFilter()
filter.set_name("Postscript (.ps; .eps)")
filter.add_pattern("*.ps")
filter.add_pattern("*.eps")
chooser.add_filter(filter)
chooser.set_filter(filter) # default filter
response = chooser.run()
try:
if response == gtk.RESPONSE_OK:
filename = chooser.get_filename()
else:
raise error.UserCancel
finally:
chooser.destroy()
#
# request export options
#
##props = ['mode', 'enhanced', 'color', 'blacktext', 'solid',
## 'dashlength', 'linewidth', 'duplexing', 'rounded', 'fontname',
## 'fontsize', 'timestamp']
dialog = OptionsDialog(PostscriptTerminal(), app.window)
dialog.set_size_request(320,520)
# determine requested postscript mode (ps or eps) from extension
path, ext = os.path.splitext(filename)
ext = ext.lower()
if ext == '.eps':
dialog.container.mode = 'eps'
elif ext == '.ps':
dialog.container.mode = 'landscape'
try:
result = dialog.run()
terminal = dialog.container
finally:
dialog.destroy()
if result != gtk.RESPONSE_ACCEPT:
return
#
# now check if mode and filename extension match
#
def fix_filename(filename, mode):
msg = "The postscript mode you selected (%s) does not match the given filename extension (%s). Do you want to adjust the filename to match the mode? " % (mode, os.path.splitext(filename)[1])
dialog = gtk.MessageDialog(type = gtk.MESSAGE_QUESTION, message_format = msg)
dialog.add_button("Keep Filename", gtk.RESPONSE_NO)
btn_default = dialog.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
dialog.add_button("Adjust Filename", gtk.RESPONSE_YES)
btn_default.grab_focus()
response = dialog.run()
dialog.destroy()
if response == gtk.RESPONSE_YES:
# yes = yes, adjust filename
if mode == '.eps': new_ext = '.eps'
else: new_ext = '.ps'
path, ext = os.path.splitext(filename)
return path + new_ext
elif response == gtk.RESPONSE_NO:
# no = no, keep filename
return filename
else:
# everything else -> abort action
raise error.UserCancel
if (terminal.mode == 'eps' and ext != '.eps') or \
(terminal.mode != 'eps' and ext != '.ps'):
filename = fix_filename(filename, terminal.mode)
#
# construct backend for output
#
backend = BackendRegistry.new_instance(
'gnuplot', project=project, plot=plot,
filename=filename,
terminal=terminal)
try:
backend.draw()
finally:
backend.disconnect()