kicad/scripting/kicad_pyshell/__init__.py

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# -*- coding: utf-8 -*-
"""KiCad Python Shell.
This module provides the python shell for KiCad.
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KiCad starts the shell once, by calling makePcbnewShellWindow() the
first time it is opened, subsequently the shell window is just hidden
or shown, as per user requirements.
IF makePcbnewShellWindow() is called again, a second/third shell window
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can be created.
Note:
**DO NOT** import pcbnew module if not called from Pcbnew: on msys2 it creates a serious issue:
the python script import is broken because the pcbnew application is not running, and for instance
Pgm() returns a nullptr and Kicad crashes when Pgm is invoked.
"""
import wx
import sys
import os
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from wx.py import crust, version, dispatcher
from .kicad_pyeditor import KiCadEditorNotebookFrame
from .kicad_pyeditor import KiCadEditorNotebook
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class KiCadPyShell(KiCadEditorNotebookFrame):
isPcbframe = False # is True only if the board editor is open,
# i.e. if Pcbnew application exists
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def __init__(self, parent):
KiCadEditorNotebookFrame.__init__(self, parent)
# Search if a pcbnew frame is open, because import pcbnew can be made only if it exists.
# frame names are "SchematicFrame" and "PcbFrame"
frame = wx.FindWindowByName( "PcbFrame" )
if frame is not None:
isPcbframe = True
def _setup_startup(self):
"""Initialise the startup script."""
# Create filename for startup script.
self.startup_file = os.path.join(self.config_dir,
"PyShell_pcbnew_startup.py")
self.execStartupScript = True
# Check if startup script exists
if not os.path.isfile(self.startup_file):
# Not, so create a default.
default_startup = open(self.startup_file, 'w')
# provide the content for the default startup file.
default_startup.write(
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"### DEFAULT STARTUP FILE FOR KiCad Python Shell\n" +
"# Enter any Python code you would like to execute when" +
" the PCBNEW python shell first runs.\n" +
"\n" +
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"# For example, uncomment the following lines to import the current board\n" +
"\n" +
"# import pcbnew\n" +
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"# import eeschema\n" +
"# board = pcbnew.GetBoard()\n" +
"# sch = eeschema.GetSchematic()\n")
default_startup.close()
def _setup(self):
"""
Setup prior to first buffer creation.
Called automatically by base class during init.
"""
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self.notebook = KiCadEditorNotebook(parent=self.parent)
intro = 'Py %s' % version.VERSION
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import types
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import builtins
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module = types.ModuleType('__main__')
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module.__dict__['__builtins__'] = builtins
namespace = module.__dict__.copy()
'''
Import pcbnew **only** if the board editor exists, to avoid strange behavior if not.
pcbnew.SETTINGS_MANAGER should be in fact called only if the python console is created
from the board editor, and if created from schematic editor, should use something like
eeschema.SETTINGS_MANAGER
'''
if self.isPcbframe:
import pcbnew
self.config_dir = pcbnew.SETTINGS_MANAGER.GetUserSettingsPath()
else:
self.config_dir = ""
self.dataDir = self.config_dir
self._setup_startup()
self.history_file = os.path.join(self.config_dir,
"PyShell_pcbnew.history")
self.config_file = os.path.join(self.config_dir,
"PyShell_pcbnew.cfg")
self.config = wx.FileConfig(localFilename=self.config_file)
self.config.SetRecordDefaults(True)
self.autoSaveSettings = False
self.autoSaveHistory = False
self.LoadSettings()
self.crust = crust.Crust(parent=self.notebook,
intro=intro, locals=namespace,
rootLabel="locals()",
startupScript=self.startup_file,
execStartupScript=self.execStartupScript)
self.shell = self.crust.shell
# Override the filling so that status messages go to the status bar.
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self.crust.filling.tree.setStatusText = self.parent.SetStatusText
# Override the shell so that status messages go to the status bar.
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self.shell.setStatusText = self.parent.SetStatusText
# Fix a problem with the sash shrinking to nothing.
self.crust.filling.SetSashPosition(200)
self.notebook.AddPage(page=self.crust, text='*Shell*', select=True)
self.setEditor(self.crust.editor)
self.crust.editor.SetFocus()
self.LoadHistory()
def OnAbout(self, event):
"""Display an About window."""
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title = 'About : KiCad - Python Shell'
text = "Enhanced Python Shell for KiCad\n\n" + \
"KiCad Revision: %s\n" % "??.??" + \
"Platform: %s\n" % sys.platform + \
"Python Version: %s\n" % sys.version.split()[0] + \
"wxPython Version: %s\n" % wx.VERSION_STRING + \
("\t(%s)\n" % ", ".join(wx.PlatformInfo[1:]))
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dialog = wx.MessageDialog(self.parent, text, title,
wx.OK | wx.ICON_INFORMATION)
dialog.ShowModal()
dialog.Destroy()
def EditStartupScript(self):
"""Open a Edit buffer of the startup script file."""
self.bufferCreate(filename=self.startup_file)
def LoadSettings(self):
"""Load settings for the shell."""
if self.config is not None:
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KiCadEditorNotebookFrame.LoadSettings(self.parent, self.config)
self.autoSaveSettings = \
self.config.ReadBool('Options/AutoSaveSettings', False)
self.execStartupScript = \
self.config.ReadBool('Options/ExecStartupScript', True)
self.autoSaveHistory = \
self.config.ReadBool('Options/AutoSaveHistory', False)
self.hideFoldingMargin = \
self.config.ReadBool('Options/HideFoldingMargin', True)
def SaveSettings(self, force=False):
"""
Save settings for the shell.
Arguments:
force -- False - Autosaving. True - Manual Saving.
"""
if self.config is not None:
# always save these
self.config.WriteBool('Options/AutoSaveSettings',
self.autoSaveSettings)
if self.autoSaveSettings or force:
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KiCadEditorNotebookFrame.SaveSettings(self, self.config)
self.config.WriteBool('Options/AutoSaveHistory',
self.autoSaveHistory)
self.config.WriteBool('Options/ExecStartupScript',
self.execStartupScript)
self.config.WriteBool('Options/HideFoldingMargin',
self.hideFoldingMargin)
if self.autoSaveHistory:
self.SaveHistory()
def DoSaveSettings(self):
"""Menu function to trigger saving the shells settings."""
if self.config is not None:
self.SaveSettings(force=True)
self.config.Flush()
def SaveHistory(self):
"""Save shell history to the shell history file."""
if self.dataDir:
try:
name = self.history_file
f = file(name, 'w')
hist = []
enc = wx.GetDefaultPyEncoding()
for h in self.shell.history:
if isinstance(h, unicode):
h = h.encode(enc)
hist.append(h)
hist = '\x00\n'.join(hist)
f.write(hist)
f.close()
except:
d = wx.MessageDialog(self, "Error saving history file.",
"Error", wx.ICON_EXCLAMATION | wx.OK)
d.ShowModal()
d.Destroy()
raise
def LoadHistory(self):
"""Load shell history from the shell history file."""
if self.dataDir:
name = self.history_file
if os.path.exists(name):
try:
f = file(name, 'U')
hist = f.read()
f.close()
self.shell.history = hist.split('\x00\n')
dispatcher.send(signal="Shell.loadHistory",
history=self.shell.history)
except:
d = wx.MessageDialog(self,
"Error loading history file!",
"Error", wx.ICON_EXCLAMATION | wx.OK)
d.ShowModal()
d.Destroy()
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def makePcbnewShellWindow(parentid):
"""
Create a new Shell Window and return its handle.
Arguments:
parent -- The parent window to attach to.
Returns:
The handle to the new window.
"""
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parent = wx.FindWindowById( parentid )
frmname = parent.GetName()
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return KiCadPyShell(parent)