def __init__(self, x, y, degree=3, w=None):
try:
from geomdl import NURBS, utilities
self.utilities = utilities
except ImportError:
error_message('The module `geomdl` is not installed, but it is required for NURBS!')
self._x = x
self._y = y
self._n = len(x)
if(w is None):
w = np.ones(x.shape)
self._w = w
# Create the curve
curve = NURBS.Curve()
curve.degree = degree
self._degree = degree
cpoints = np.zeros((self._n,2))
cpoints[:,0] = x
cpoints[:,1] = y
self._cpoints = cpoints
curve.ctrlpts = cpoints
curve.knotvector = utilities.generate_knot_vector(degree, len(cpoints))
curve.weights = w
self._curve = curve
def _get_preview_filename(self):
import warnings
warnings.filterwarnings("ignore", "tempnam", RuntimeWarning,
"application")
if compat.PYTHON2:
out_name = os.tempnam(None, 'wxg') + '.py'
else:
# create a temporary file at either the output path or the project path
error = None
if not self.filename:
error = "Save project first; a temporary file will be created in the same directory."
else:
dirname, basename = os.path.split(self.filename)
basename, extension = os.path.splitext(basename)
basename = basename.replace(".", "_")
if not os.path.exists(dirname):
error = "Directory '%s' not found" % dirname
elif not os.path.isdir(dirname):
error = "'%s' is not a directory" % dirname
if error:
misc.error_message(error)
return None
while True:
out_name = os.path.join(
dirname,
"_%s_%d.py" % (basename, random.randrange(10**8, 10**9)))
if not os.path.exists(out_name): break
return out_name
def generate_code(self, preview=False, out_path=None, widget=None):
if config.use_gui:
common.property_panel.flush()
else:
np.flush_current_property()
if out_path is None:
out_path = os.path.expanduser(self.output_path.strip())
if not os.path.isabs(out_path) and (out_path and self.filename):
out_path = os.path.join(os.path.dirname(self.filename),
out_path)
out_path = os.path.normpath(out_path)
if not out_path:
msg = "You must specify an output file before generating any code."
if not self.filename:
msg += "\nFor relative file names, the project needs to be saved first."
return misc.error_message(msg)
name_p = self.properties["name"]
class_p = self.properties["class"]
if self.language != "XRC":
if not preview and (name_p.is_active() or
class_p.is_active()) and not self.top_window:
return misc.error_message(
"Please select a top window for the application or deactivate "
"the Name and Class properties for Application.\n"
"In that case, only code for the windows will be generated, not for the "
"application.")
if preview:
writer = common.code_writers["python"].copy()
else:
writer = common.code_writers[self.language] #.copy()
try:
writer.new_project(self, out_path, preview)
writer.generate_code(self.node, widget)
writer.finalize()
except errors.WxgBaseException as inst:
misc.error_message(_("Error generating code:\n%s") % inst)
return
except EnvironmentError as inst:
bugdialog.ShowEnvironmentError(
_('An IO/OS related error is occurred:'), inst)
bugdialog.Show(_('Generate Code'), inst)
return
finally:
writer.clean_up(self.node)
if preview or not config.use_gui: return
if config.preferences.show_completion:
# Show informational dialog
misc.info_message("Code generation completed successfully")
else:
# Show message in application status bar
app = wx.GetApp()
frame = app.GetTopWindow()
frame.user_message(_('Code generated'))
def paste(widget):
"""Copies a widget (and all its children) from the clipboard to the given
destination (parent, sizer and position inside the sizer). Returns True on success."""
error = None
if not wx.TheClipboard.Open():
misc.error_message("Clipboard can't be opened.")
return False
try:
data_object = None
for fmt in [widget_data_format, sizer_data_format, window_data_format]:
if wx.TheClipboard.IsSupported(fmt):
data_object = wx.CustomDataObject(fmt)
break
if data_object is None:
misc.info_message(
"The clipboard doesn't contain wxGlade widget data.")
return False
if not wx.TheClipboard.GetData(data_object):
misc.error_message("Data can't be copied from clipboard.")
return False
finally:
wx.TheClipboard.Close()
format_name = data_object.GetFormat().GetId().split(".")[
1] # e.g. 'wxglade.widget' -> 'widget'
compatible, message = widget.check_compatibility(None, format_name)
if not compatible:
wx.Bell()
if message:
misc.error_message(message)
return False
if not widget.clipboard_paste(data_object.GetData()):
misc.error_message("Paste failed")
def on_left_click(self, event):
if not common.adding_widget: return event.Skip()
editor = self.find_editor_by_pos( *event.GetPosition() )
if not editor: return event.Skip()
compatible, message = editor.check_drop_compatibility()
if not compatible:
event.Skip()
misc.error_message(message)
return
common.adding_window = event.GetEventObject().GetTopLevelParent()
if editor.IS_SLOT:
editor.on_drop_widget(event)
elif common.adding_sizer or True:
editor.drop_sizer()
common.adding_window = None
def on_left_click(self, event):
if not common.adding_widget: return event.Skip()
node = self._find_node_by_pos(*event.GetPosition())
if not node: return event.Skip()
item = node.widget
compatible, message = item.check_drop_compatibility()
if not compatible:
event.Skip()
misc.error_message(message)
return
common.adding_window = event.GetEventObject().GetTopLevelParent()
if isinstance(item, edit_sizers.SizerSlot):
item.on_drop_widget(event)
elif common.adding_sizer:
item.drop_sizer()
common.adding_window = None
def on_drop_files(self, x, y, filenames):
if len(filenames) > 1:
misc.error_message(_("Please only drop one file at a time"))
return False
# find the control and then the property
screen_xy = self.ClientToScreen((x, y))
ctrl = wx.FindWindowAtPoint(screen_xy)
if not ctrl: return False
for p_name in self.current_widget.PROPERTIES:
if p_name[0].isupper(): continue
prop = self.current_widget.properties.get(p_name)
if not prop or not hasattr(prop, "on_drop_file"): continue
if (hasattr(prop, "label_ctrl")
and prop.label_ctrl.ScreenRect.Contains(screen_xy)
and prop.label_ctrl.IsShownOnScreen()
) or prop.has_control(ctrl):
return prop.on_drop_file(filenames[0])
return False
def preview(self, widget, position=None):
"""Generate and instantiate preview widget.
None will be returned in case of errors. The error details are written to the application log file."""
preview_filename = self._get_preview_filename()
if preview_filename is None: return
if wx.Platform == "__WXMAC__" and not compat.PYTHON2:
# workaround for Mac OS testing: sometimes the caches need to be invalidated
import importlib
importlib.invalidate_caches()
# make a valid name for the class (this can be invalid for some sensible reasons...)
preview_classname = widget.WX_CLASS.split('.')[-1].split(':')[-1]
# randomize the class name to make preview work when there are multiple classes with the same name (e.g. XRC)
preview_classname = '_%d_%s' % (random.randrange(10**8, 10**
9), preview_classname)
widget.properties["class"].set_temp(preview_classname)
frame = None
try:
self.generate_code(True, preview_filename, widget)
# import generated preview module dynamically
preview_path = os.path.dirname(preview_filename)
preview_module_name = os.path.basename(preview_filename)
preview_module_name = os.path.splitext(preview_module_name)[0]
preview_module = plugins.import_module(preview_path,
preview_module_name)
if not preview_module:
misc.error_message(
_('Can not import the preview module from file \n"%s".\n'
'The details are written to the log file.\n'
'If you think this is a wxGlade bug, please report it.')
% self.output_path)
return None
try:
preview_class = getattr(preview_module,
preview_classname) # .klass)
except AttributeError:
# module loaded previously -> do a re-load XXX this is required for Python 3; check alternatives
if sys.version_info.major < 3:
preview_module = reload(preview_module)
else:
import importlib
preview_module = importlib.reload(preview_module)
preview_class = getattr(preview_module, preview_classname)
if not preview_class:
misc.error_message(
_('No preview class "%s" found.\nThe details are written to the log file.\n'
'If you think this is a wxGlade bug, please report it.')
% widget.klass)
return None
if issubclass(preview_class, wx.MDIChildFrame):
frame = wx.MDIParentFrame(None, -1, '')
frame.SetMenuBar(wx.MenuBar()) # avoid assertion error
child = preview_class(frame, -1, '')
child.SetTitle('<Preview> - ' + child.GetTitle())
w, h = child.GetSize()
frame.SetClientSize((w + 20, h + 20))
elif not issubclass(preview_class, (wx.Frame, wx.Dialog)):
# the toplevel class isn't really toplevel, add a frame...
frame = wx.Frame(None, -1, widget.klass)
if issubclass(preview_class, wx.MenuBar):
menubar = preview_class()
frame.SetMenuBar(menubar)
panel = wx.Panel(frame)
elif issubclass(preview_class, wx.ToolBar):
toolbar = preview_class(frame, -1)
frame.SetToolBar(toolbar)
panel = wx.Panel(frame)
frame.SetMinSize(toolbar.GetBestSize())
frame.Fit()
else:
panel = preview_class(frame, -1)
frame.Fit()
else:
frame = preview_class(None, -1, '')
def on_close(event):
frame.Unbind(wx.EVT_CHAR_HOOK)
compat.DestroyLater(frame)
widget.preview_widget = None
widget.properties["preview"].set_label(_('Show Preview'))
frame.Bind(wx.EVT_CLOSE, on_close)
frame.SetTitle(_('<Preview> - %s') % frame.GetTitle())
# raise the frame
if position:
frame.SetPosition(position)
else:
frame.CenterOnScreen()
if widget.widget:
# avoid Design and Preview window at the same position
pos = widget.widget.GetPosition()
if frame.GetPosition() == pos:
frame.SetPosition((pos[0] + 200, pos[1] + 100))
frame.Show()
# install handler for key down events
frame.Bind(wx.EVT_CHAR_HOOK, self.on_char_hook)
# remove the temporary file
if not config.debugging:
name = os.path.join(preview_path, preview_module_name + ".py")
if os.path.isfile(name): os.unlink(name)
except Exception as inst:
if config.debugging or config.testing: raise
widget.preview_widget = None
widget.properties["preview"].set_label(_('Show Preview'))
bugdialog.Show(_("Generate Preview"), inst)
return frame
def generate_code(self, preview=False, out_path=None, widget=None):
np.flush_current_property()
if out_path is None:
out_path = os.path.expanduser(self.output_path.strip())
if not out_path and self.multiple_files: out_path = "."
if not os.path.isabs(out_path) and (out_path and self.filename):
out_path = os.path.join(os.path.dirname(self.filename),
out_path)
out_path = os.path.normpath(out_path)
if not out_path:
msg = "You must specify an output file before generating any code."
if not self.filename:
msg += "\nFor relative file names, the project needs to be saved first."
return misc.error_message(msg)
name_p = self.properties["name"]
class_p = self.properties["class"]
if self.language != "XRC":
if not preview and (name_p.is_active() or
class_p.is_active()) and not self.top_window:
return misc.error_message(
"Please select a top window for the application or deactivate "
"the Name and Class properties for Application.\n"
"In that case, only code for the windows will be generated, not for the "
"application.")
if preview:
writer = common.code_writers["preview"]
else:
writer = common.code_writers[self.language]
error = writer.new_project(self, out_path, preview)
if error:
# prerequisites were checked and there is a problem
misc.error_message(_("Error generating code:\n%s") % error)
return
try:
writer.generate_code(self, widget)
writer.finalize()
except EnvironmentError as inst:
bugdialog.ShowEnvironmentError(
_('An IO related error has occurred:'), inst)
return
except UnicodeEncodeError as inst:
msg = _("Could not convert generated source code to encoding %s.\n"
'(characters "%s")')
chars = inst.object[inst.start:
inst.end] # .encode('unicode-escape')
msg = msg % (self.encoding, chars)
misc.error_message(msg)
return
except Exception as inst:
# unexpected / internal error
if config.testing or config.debugging: raise
bugdialog.Show(_('Generate Code'), inst)
return
finally:
writer.clean_up(widget or self)
if preview or not config.use_gui: return
if config.preferences.show_completion:
# Show informational dialog
misc.info_message("Code generation completed successfully")
else:
# Show message in application status bar
app = wx.GetApp()
frame = app.GetTopWindow()
frame.user_message(_('Code generated'))
def preview(self, widget, position=None):
"""Generate and instantiate preview widget.
None will be returned in case of errors. The error details are written to the application log file."""
# some checks
#if compat.IS_PHOENIX:
#found = common.app_tree.find_widgets_by_classnames(widget.node, "EditPropertyGridManager")
#if found:
#error = ("Preview with PropertyGridManager controls is currently deactivated as it causes crashes "
#"with wxPython Phoenix")
#wx.MessageBox( error, _('Error'), wx.OK | wx.CENTRE | wx.ICON_EXCLAMATION )
#return
# XXX check other things as well, e.g. different bitmap sizes for BitmapButton
preview_filename = self._get_preview_filename()
if preview_filename is None: return
widget_class_name = widget.klass
# make a valid name for the class (this can be invalid for some sensible reasons...)
widget_class = widget.klass[widget.klass.rfind('.') + 1:]
widget_class = widget.klass[widget.klass.rfind(':') + 1:]
# ALB 2003-11-08: always randomize the class name: this is to make preview work even when there are multiple
# classes with the same name (which makes sense for XRC output...)
widget_class = '_%d_%s' % (random.randrange(10**8, 10**
9), widget_class)
widget.properties["class"].set(widget_class)
if wx.Platform == "__WXMAC__" and not compat.PYTHON2:
# workaround for Mac OS testing: sometimes the caches need to be invalidated
import importlib
importlib.invalidate_caches()
frame = None
try:
self.generate_code(True, preview_filename, widget)
# import generated preview module dynamically
preview_path = os.path.dirname(preview_filename)
preview_module_name = os.path.basename(preview_filename)
preview_module_name = os.path.splitext(preview_module_name)[0]
preview_module = plugins.import_module(preview_path,
preview_module_name)
if not preview_module:
misc.error_message(
_('Can not import the preview module from file \n"%s".\n'
'The details are written to the log file.\n'
'If you think this is a wxGlade bug, please report it.')
% self.output_path)
return None
try:
preview_class = getattr(preview_module, widget.klass)
except AttributeError:
# module loade previously -> do a re-load XXX this is required for Python 3; check alternatives
import importlib
preview_module = importlib.reload(preview_module)
preview_class = getattr(preview_module, widget.klass)
if not preview_class:
misc.error_message(
_('No preview class "%s" found.\nThe details are written to the log file.\n'
'If you think this is a wxGlade bug, please report it.')
% widget.klass)
return None
if issubclass(preview_class, wx.MDIChildFrame):
frame = wx.MDIParentFrame(None, -1, '')
frame.SetMenuBar(wx.MenuBar()) # avoid assertion error
child = preview_class(frame, -1, '')
child.SetTitle('<Preview> - ' + child.GetTitle())
w, h = child.GetSize()
frame.SetClientSize((w + 20, h + 20))
elif not issubclass(preview_class, (wx.Frame, wx.Dialog)):
# the toplevel class isn't really toplevel, add a frame...
frame = wx.Frame(None, -1, widget_class_name)
if issubclass(preview_class, wx.MenuBar):
menubar = preview_class()
frame.SetMenuBar(menubar)
panel = wx.Panel(frame)
elif issubclass(preview_class, wx.ToolBar):
toolbar = preview_class(frame, -1)
frame.SetToolBar(toolbar)
panel = wx.Panel(frame)
frame.SetMinSize(toolbar.GetBestSize())
frame.Fit()
else:
panel = preview_class(frame, -1)
frame.Fit()
else:
frame = preview_class(None, -1, '')
def on_close(event):
frame.Unbind(wx.EVT_CHAR_HOOK)
compat.DestroyLater(frame)
widget.preview_widget = None
widget.properties["preview"].set_label(_('Show Preview'))
frame.Bind(wx.EVT_CLOSE, on_close)
frame.SetTitle(_('<Preview> - %s') % frame.GetTitle())
# raise the frame
if position:
frame.SetPosition(position)
else:
frame.CenterOnScreen()
if widget.widget:
# avoid Design and Preview window at the same position
pos = widget.widget.GetPosition()
if frame.GetPosition() == pos:
frame.SetPosition((pos[0] + 200, pos[1] + 100))
frame.Show()
# install handler for key down events
frame.Bind(wx.EVT_CHAR_HOOK, self.on_char_hook)
# remove the temporary file
if not config.debugging:
name = os.path.join(preview_path, preview_module_name + ".py")
if os.path.isfile(name): os.unlink(name)
except Exception as inst:
if config.debugging or config.testing: raise
widget.preview_widget = None
widget.properties["preview"].set_label(_('Show Preview'))
bugdialog.Show(_("Generate Preview"), inst)
# XXX restore app state
widget.properties["class"].set(widget_class_name)
return frame