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#!/usr/bin/env python
#------------------------------------------------------------------------------
# Copyright: 2013
# Author: Dewey Garrett <dgarrett@panix.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#------------------------------------------------------------------------------
"""
# popup keyboard for use with touchscreen applications
# used by pyngcgui.py
# based on work of John Thornton's Buglump
Optional __init__() args:
glade_file (default = 'popupkeyboard.ui')
dialog_name (default = 'dialog') Main window
num_entry_name (default = 'num_entry') Entry for display
coord_buttons_name (default = 'coords') Box for coord buttons
use_coord_buttons (default = True) Enable coord buttons
Required objects for glade_file:
gtk.Window (Main window)
gtk.Entry (Entry for display)
Optional objects for galde_file:
gtk.*Box: (Box for coord buttons)
All buttons use a single handler named 'on_click'.
The PopupKeyboard class recognizes buttons by their LABEL.
Required button LABELS (case insensitive):
0,1,2,3,4,5,6,7,8,9,. (numbers and decimal point)
+/- (toggle sign)
clear (clear)
bs (back space)
save (save)
cancel (cancel)
Optional button LABELS (case insensitive):
x,y,z,a,b,c,u,v,w,d (9 axes plus d for diameter)
"""
import linuxcnc
import sys
import os
import pango
g_ui_dir = linuxcnc.SHARE + "/linuxcnc"
try:
import pygtk
pygtk.require('2.0')
except:
pass
try:
import gtk
except ImportError,msg:
print('GTK not available: %s' % msg)
sys.exit(1)
class PopupKeyboard:
def __init__(self
,glade_file=None
,dialog_name='dialog'
,num_entry_name='num_entry'
,coord_buttons_name='coords'
,use_coord_buttons=True
,theme_name=None
):
if (glade_file is None):
glade_file = os.path.join(g_ui_dir,'popupkeyboard.ui')
fontname ='sans 12 bold'
self.use_coord_buttons = use_coord_buttons
try:
import gtk.glade
except ImportError,detail:
print 'ImportError:',detail
except Exception,msg:
print 'Exception:',Exception
print sys.exc_info()
sys.exit(1)
self.builder = gtk.Builder()
self.builder.add_from_file(glade_file)
self.builder.connect_signals(self)
self.dialog = self.builder.get_object(dialog_name)
self.set_theme(theme_name)
self.num_entry = self.builder.get_object(num_entry_name)
try:
self.coord_buttons = self.builder.get_object(coord_buttons_name)
except:
self.coord_buttons = None
self.result = None
self.location = None
self.top = self.dialog.get_toplevel()
self.top.set_title(glade_file)
self.top.set_keep_above(True)
if (not self.use_coord_buttons):
if self.coord_buttons:
self.coord_buttons.hide()
# prevent closing of dialog by window manager, escape key , etc
# http://faq.pygtk.org/index.py?file=faq10.013.htp&req=show
self.top.connect("response", self.on_response) #reqd
self.top.connect("delete-event",self.on_delete) #reqd
self.top.connect("close", self.on_close) #probably not reqd
# find buttons with labels XYZABCUVW or D
# and show iff corresponding axis is in axis_mask
label_to_btn = {}
for btn in self.builder.get_objects():
if type(btn) is not gtk.Button:
continue
label_to_btn[btn.get_label().upper()] = btn
if isinstance(btn.child, gtk.Label):
lbl = btn.child
lbl.modify_font(pango.FontDescription(fontname))
try:
self.stat = linuxcnc.stat()
self.stat.poll()
has_x = False
for axno in range(0,9):
axname = 'XYZABCUVW'[axno]
if label_to_btn.has_key(axname):
b = label_to_btn[axname]
if bool(self.stat.axis_mask & (1 << axno)):
b.show()
if axno == 0: has_x = True
else:
b.hide()
bdiam = None
if label_to_btn.has_key('D'):
bdiam = label_to_btn['D']
if bdiam and has_x:
bdiam.show()
elif bdiam:
bdiam.hide()
except linuxcnc.error,msg:
self.stat = None
if self.coord_buttons is not None:
self.coord_buttons.hide()
print "linuxcnc must be running to use axis keys"
# continue without buttons for testing when linuxnc not running
except Exception, err:
print 'Exception:',Exception
print sys.exc_info()
sys.exit(1)
# making it insensitive clears the inital selection region
self.num_entry.set_state(gtk.STATE_INSENSITIVE)
self.num_entry.modify_text(gtk.STATE_INSENSITIVE
,gtk.gdk.color_parse('black'))
self.num_entry.modify_font(pango.FontDescription(fontname))
def set_theme(self,tname=None):
if tname is None:
return
screen = self.dialog.get_screen()
settings = gtk.settings_get_for_screen(screen)
settings.set_string_property('gtk-theme-name',tname,"")
theme = settings.get_property('gtk-theme-name')
def on_response(self,widget,response):
if response < 0:
widget.emit_stop_by_name('response')
return True
def on_delete(self,widget,event): return True
def on_close(self,widget,event): return True
def run(self,initial_value='',title=None):
if title is not None:
self.top.set_title(title)
self.num_entry.set_text(str(initial_value))
if self.location:
self.dialog.parse_geometry('+%d+%d'
% (self.location[0],self.location[1]))
self.num_entry.set_position(0)
self.dialog.run()
if self.result is None:
return False #user canceled
else:
return True
def on_click(self, widget, data=None):
l = widget.get_label()
e = self.num_entry
self.label_to_method(l)(e,l)
def label_to_method(self,l):
ll = l.lower()
if ll.find('clear') >= 0: return self.do_clear
if ll.find('save') >= 0: return self.do_save
if ll.find('cancel')>= 0: return self.do_cancel
if ll.find('+/-') >= 0: return self.do_sign
if ll.find('bs') >= 0: return self.do_backspace
if ll in ('.0123456789'): return self.do_number
if ll in ('xyzabcuvwd'): return self.do_axis_letter
return self.do_unknown_label
def do_unknown_label(self,e,l):
print 'PopupKeyboard:do_unknown_label: <%s>' % l
def do_number(self,e,l):
# not needed if INSENSITIVE:
# if e.get_selection_bounds(): e.delete_selection()
e.set_text(e.get_text() + l)
def do_backspace(self,e,l):
e.set_text(e.get_text()[:-1])
def do_sign(self,e,l):
current = e.get_text()
if current == '':
current = '-'
elif current[0] == '-':
current = current[1:]
else:
current = '-' + current
e.set_text(current)
def do_save(self,e,l):
self.result = e.get_text()
e.set_text('')
self.location = self.dialog.get_position()
self.dialog.hide() # tells dialog.run() to finish
def do_cancel(self,e,l):
self.result = None # None means canceled
self.dialog.hide() # tells dialog.run() to finish
def do_clear(self,e,l):
e.set_text('')
def do_axis_letter(self,e,l):
if self.stat:
self.stat.poll()
e.set_text("%.6g" % self.coord_value(l))
else:
print "linuxcnc must be running to use <%s> key" % l
def get_result(self):
return(self.result)
def coord_value(self,char):
# offset calc copied from emc_interface.py
# char = 'x' | 'y' | ...
# 'd' is for diameter
s = self.stat
s.poll()
p = s.position # tuple=(xvalue, yvalue, ...
return {
'x': p[0] - s.g5x_offset[0] - s.tool_offset[0],
'y': p[1] - s.g5x_offset[1] - s.tool_offset[1],
'z': p[2] - s.g5x_offset[2] - s.tool_offset[2],
'a': p[3] - s.g5x_offset[3] - s.tool_offset[3],
'b': p[4] - s.g5x_offset[4] - s.tool_offset[4],
'c': p[5] - s.g5x_offset[5] - s.tool_offset[5],
'u': p[6] - s.g5x_offset[6] - s.tool_offset[6],
'v': p[7] - s.g5x_offset[7] - s.tool_offset[7],
'w': p[8] - s.g5x_offset[8] - s.tool_offset[8],
'd':(p[0] - s.g5x_offset[0] - s.tool_offset[0])* 2,#2*R
}[char.lower()]
if __name__ == "__main__":
m = PopupKeyboard()
print "\nClear and Save to end test\n"
ct = 100
while True:
m.run(initial_value=''
,title=str(ct)
)
result = m.get_result()
print 'result = <%s>' % result
if result=='':
sys.exit(0)
ct += 1
gtk.main()
# vim: sts=4 sw=4 et
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