Import LinuxCNC source tree
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Wang Dequan
297
lib/python/popupkeyboard.py
Executable file
297
lib/python/popupkeyboard.py
Executable file
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#!/usr/bin/env python3
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#------------------------------------------------------------------------------
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# Copyright: 2013
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# Author: Dewey Garrett <dgarrett@panix.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#------------------------------------------------------------------------------
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"""
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# popup keyboard for use with touchscreen applications
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# used by pyngcgui.py
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# based on work of John Thornton's Buglump
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Optional __init__() args:
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glade_file (default = 'popupkeyboard.ui')
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dialog_name (default = 'dialog') Main window
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num_entry_name (default = 'num_entry') Entry for display
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coord_buttons_name (default = 'coords') Box for coord buttons
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use_coord_buttons (default = True) Enable coord buttons
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Required objects for glade_file:
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Gtk.Window (Main window)
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Gtk.Entry (Entry for display)
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Optional objects for galde_file:
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Gtk.*Box: (Box for coord buttons)
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All buttons use a single handler named 'on_click'.
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The PopupKeyboard class recognizes buttons by their LABEL.
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Required button LABELS (case insensitive):
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0,1,2,3,4,5,6,7,8,9,. (numbers and decimal point)
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+/- (toggle sign)
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clear (clear)
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bs (back space)
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save (save)
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cancel (cancel)
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Optional button LABELS (case insensitive):
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x,y,z,a,b,c,u,v,w,d (9 axes plus d for diameter)
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"""
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import linuxcnc
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import sys
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import os
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import gi
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gi.require_version('Pango', '1.0')
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from gi.repository import Pango
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gi.require_version('Gtk', '3.0')
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from gi.repository import Gtk
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from gi.repository import GObject
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g_ui_dir = linuxcnc.SHARE + "/linuxcnc"
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class PopupKeyboard:
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def __init__(self
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,glade_file=None
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,dialog_name='dialog'
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,num_entry_name='num_entry'
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,coord_buttons_name='coords'
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,use_coord_buttons=True
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,theme_name=None
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):
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if (glade_file is None):
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glade_file = os.path.join(g_ui_dir,'popupkeyboard.ui')
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fontname ='sans 12 bold'
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self.use_coord_buttons = use_coord_buttons
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self.builder = Gtk.Builder()
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self.builder.add_from_file(glade_file)
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self.builder.connect_signals(self)
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self.dialog = self.builder.get_object(dialog_name)
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self.set_theme(theme_name)
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self.num_entry = self.builder.get_object(num_entry_name)
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try:
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self.coord_buttons = self.builder.get_object(coord_buttons_name)
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except:
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self.coord_buttons = None
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self.result = None
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self.location = None
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self.top = self.dialog.get_toplevel()
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self.top.set_title(glade_file)
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self.top.set_keep_above(True)
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if (not self.use_coord_buttons):
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if self.coord_buttons:
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self.coord_buttons.hide()
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# prevent closing of dialog by window manager, escape key , etc
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# http://faq.pygtk.org/index.py?file=faq10.013.htp&req=show
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self.top.connect("response", self.on_response) #reqd
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self.top.connect("delete-event",self.on_delete) #reqd
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self.top.connect("close", self.on_close) #probably not reqd
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# find buttons with labels XYZABCUVW or D
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# and show iff corresponding axis is in axis_mask
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self.label_to_btn = {}
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for btn in self.builder.get_objects():
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if type(btn) is not Gtk.Button:
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continue
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self.label_to_btn[btn.get_label().upper()] = btn
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#not working gtk3:
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#if isinstance(btn.child, Gtk.Label):
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# lbl = btn.child
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# lbl.modify_font(Pango.FontDescription(fontname))
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if use_coord_buttons: self.support_coord_buttons()
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# making it insensitive clears the initial selection region
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#deprecated in gtk3:
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#self.num_entry.set_state(Gtk.StateType.INSENSITIVE)
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#self.num_entry.modify_text(Gtk.StateType.INSENSITIVE
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# ,Gtk.gdk.color_parse('black'))
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#self.num_entry.modify_font(Pango.FontDescription(fontname))
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def support_coord_buttons(self):
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try:
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self.stat = linuxcnc.stat()
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self.stat.poll()
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has_x = False
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for axno in range(0,9):
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axname = 'XYZABCUVW'[axno]
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if axname in self.label_to_btn:
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b = self.label_to_btn[axname]
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if bool(self.stat.axis_mask & (1 << axno)):
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b.show()
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if axno == 0: has_x = True
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else:
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b.hide()
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bdiam = None
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if 'D' in self.label_to_btn:
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bdiam = self.label_to_btn['D']
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if bdiam and has_x:
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bdiam.show()
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elif bdiam:
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bdiam.hide()
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except linuxcnc.error as msg:
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self.stat = None
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if self.coord_buttons is not None:
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self.coord_buttons.hide()
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print("linuxcnc must be running to use coordinate keys")
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# continue without buttons for testing when linuxnc not running
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except Exception as err:
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print('Exception:',Exception)
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print(sys.exc_info())
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sys.exit(1)
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def set_theme(self,tname=None):
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if tname is None:
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return
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screen = self.dialog.get_screen()
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#wip: gtk3 notworking
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#settings = Gtk.settings_get_for_screen(screen)
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#settings.set_string_property('gtk-theme-name',tname,"")
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#theme = settings.get_property('gtk-theme-name')
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# prevent closing of dialog by window manager, escape key , etc
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def on_response(self,widget,response):
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if response < 0:
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GObject.signal_stop_emission_by_name(widget,'response')
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return True
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def on_delete(self,widget,event): return True
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def on_close(self,widget,event): return True
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def run(self,initial_value='',title=None):
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if title is not None:
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self.top.set_title(title)
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self.num_entry.set_text(str(initial_value))
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if self.location:
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#Gtk3:deprecated:
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#self.dialog.parse_geometry('+%d+%d'
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# % (self.location[0],self.location[1]))
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pass
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self.num_entry.set_position(0)
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self.dialog.run()
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if self.result is None:
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return False #user canceled
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else:
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return True
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def on_click(self, widget, data=None):
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l = widget.get_label()
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e = self.num_entry
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self.label_to_method(l)(e,l)
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def label_to_method(self,l):
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ll = l.lower()
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if ll.find('clear') >= 0: return self.do_clear
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if ll.find('save') >= 0: return self.do_save
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if ll.find('cancel')>= 0: return self.do_cancel
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if ll.find('+/-') >= 0: return self.do_sign
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if ll.find('bs') >= 0: return self.do_backspace
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if ll in ('.0123456789'): return self.do_number
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if ll in ('xyzabcuvwd'): return self.do_axis_letter
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return self.do_unknown_label
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def do_unknown_label(self,e,l):
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print('PopupKeyboard:do_unknown_label: <%s>' % l)
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def do_number(self,e,l):
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# not needed if INSENSITIVE:
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# if e.get_selection_bounds(): e.delete_selection()
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e.set_text(e.get_text() + l)
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def do_backspace(self,e,l):
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e.set_text(e.get_text()[:-1])
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def do_sign(self,e,l):
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current = e.get_text()
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if current == '':
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current = '-'
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elif current[0] == '-':
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current = current[1:]
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else:
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current = '-' + current
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e.set_text(current)
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def do_save(self,e,l):
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self.result = e.get_text()
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e.set_text('')
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self.location = self.dialog.get_position()
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self.dialog.hide() # tells dialog.run() to finish
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def do_cancel(self,e,l):
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self.result = None # None means canceled
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self.dialog.hide() # tells dialog.run() to finish
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def do_clear(self,e,l):
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e.set_text('')
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def do_axis_letter(self,e,l):
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if self.stat:
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self.stat.poll()
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e.set_text("%.6g" % self.coord_value(l))
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else:
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print("linuxcnc must be running to use <%s> key" % l)
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def get_result(self):
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return(self.result)
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def coord_value(self,char):
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# offset calc copied from emc_interface.py
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# char = 'x' | 'y' | ...
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# 'd' is for diameter
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s = self.stat
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s.poll()
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p = s.position # tuple=(xvalue, yvalue, ...
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return {
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'x': p[0] - s.g5x_offset[0] - s.tool_offset[0],
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'y': p[1] - s.g5x_offset[1] - s.tool_offset[1],
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'z': p[2] - s.g5x_offset[2] - s.tool_offset[2],
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'a': p[3] - s.g5x_offset[3] - s.tool_offset[3],
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'b': p[4] - s.g5x_offset[4] - s.tool_offset[4],
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'c': p[5] - s.g5x_offset[5] - s.tool_offset[5],
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'u': p[6] - s.g5x_offset[6] - s.tool_offset[6],
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'v': p[7] - s.g5x_offset[7] - s.tool_offset[7],
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'w': p[8] - s.g5x_offset[8] - s.tool_offset[8],
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'd':(p[0] - s.g5x_offset[0] - s.tool_offset[0])* 2,#2*R
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}[char.lower()]
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if __name__ == "__main__":
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m = PopupKeyboard()
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print("\nClear and Save to end test\n")
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ct = 100
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while True:
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m.run(initial_value=''
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,title=str(ct)
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)
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result = m.get_result()
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print('result = <%s>' % result)
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if result=='':
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sys.exit(0)
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ct += 1
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Gtk.main()
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# vim: sts=4 sw=4 et
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