Import LinuxCNC source tree

lib/python/gladevcp/hal_gremlin_plus.py

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+#!/usr/bin/env python3
+
+#------------------------------------------------------------------------------
+# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#------------------------------------------------------------------------------
+
+import gi
+gi.require_version("Gtk","3.0")
+from gi.repository import Gtk
+from gi.repository import GObject
+from gi.repository import GLib
+import sys
+import os
+import gremlin_view
+
+#-----------------------------------------------------------------------------
+# determine if glade interface designer is running
+# in order to prevent connection of most signals
+g_is_glade = False
+if 'glade' in sys.argv[0] and 'gladevcp' not in sys.argv[0]:
+    for d in os.environ['PATH'].split(':'):
+        f = os.path.join(d,sys.argv[0])
+        if (    os.path.isfile(f)
+            and os.access(f, os.X_OK)):
+            g_is_glade = True
+            break
+g_alive = not g_is_glade
+#-----------------------------------------------------------------------------
+from . import hal_actions
+class HAL_GremlinPlus(Gtk.Frame, hal_actions._EMC_ActionBase):
+    """HAL_GremlinPlus: gladevcp widget for gremlin_view.GremlinView
+       Provides hal_gremlin with some buttons
+    """
+    __gtype_name__ = 'HAL_GremlinPlus'
+    __gproperties__ = {
+        'debug' :       (GObject.TYPE_BOOLEAN
+                        ,'Debug'
+                        ,'Yes or No'
+                        ,False
+                        ,GObject.ParamFlags.READWRITE | GObject.ParamFlags.CONSTRUCT
+                        ),
+        'width' :       (GObject.TYPE_INT
+                        ,'width'
+                        ,'min width pixels'
+                        ,-1
+                        ,(1<<31)-1
+                        ,300
+                        ,GObject.ParamFlags.READWRITE | GObject.ParamFlags.CONSTRUCT
+                        ),
+        'height' :      (GObject.TYPE_INT
+                        ,'height'
+                        ,'min height pixels'
+                        ,-1
+                        ,(1<<31)-1
+                        ,300
+                        ,GObject.ParamFlags.READWRITE | GObject.ParamFlags.CONSTRUCT
+                        ),
+     'glade_file':      (GObject.TYPE_STRING
+                        ,'glade file name'
+                        ,'default or full filename'
+                        ,'default'
+                        ,GObject.ParamFlags.READWRITE | GObject.ParamFlags.CONSTRUCT
+                        ),
+     'gtk_theme_name':  (GObject.TYPE_STRING
+                        ,'Gtk+ Theme Name'
+                        ,'default | name_of_Gtk+_theme'
+                        ,'Follow System Theme'
+                        ,GObject.ParamFlags.READWRITE | GObject.ParamFlags.CONSTRUCT
+                        ),
+                      }
+
+    __gproperties = __gproperties__ # self.__gproperties
+    def __init__(self):
+        super(HAL_GremlinPlus,self).__init__(label=None)
+        self.set_label(None)
+        # the two attempts above don't prevent glade from making a label
+
+        # put default property values in self.property_dict[]
+        self.property_dict = {}
+        for name in self.__gproperties.keys():
+            gtype = self.__gproperties[name][0]
+            if (   gtype == GObject.TYPE_BOOLEAN
+                or gtype == GObject.TYPE_STRING):
+                ty,lbl,tip,dflt,other = self.__gproperties[name]
+            if (   gtype == GObject.TYPE_INT
+                or gtype == GObject.TYPE_FLOAT):
+                ty,lbl,tip,minv,maxv,dflt,other = self.__gproperties[name]
+            self.property_dict[name] = dflt
+        GLib.timeout_add(1,self.go_gremlin_view) # defer
+
+    def do_get_property(self,property):
+        name = property.name.replace('-', '_')
+        if name in self.property_dict.keys():
+            return self.property_dict[name]
+        else:
+            raise AttributeError(_('%s:unknown property %s')
+                                 % (g_progname,property.name))
+
+    def do_set_property(self,property,value):
+        name = property.name.replace('-','_')
+        if name not in self.__gproperties.keys():
+            raise(AttributeError
+                 ,_('%s:do_set_property: unknown <%s>')
+                 % (g_progname,name))
+        else:
+            self.property_dict[name] = value
+
+    def go_gremlin_view(self):
+        self.start_GremlinView(width=self.property_dict['width']
+            ,height=self.property_dict['height']
+            ,glade_file=self.property_dict['glade_file']
+            ,gtk_theme_name= self.property_dict['gtk_theme_name']
+            )
+        GLib.timeout_add(1,self.remove_unwanted_label)
+
+    def remove_unwanted_label(self):
+        # coerce removal of unwanted label
+        self.set_label(None)
+        return False # one-time-only
+
+    def start_GremlinView(self
+                         ,glade_file=None # None: use default ui file
+                         ,width=-1
+                         ,height=-1
+                         ,gtk_theme_name="Follow System Theme"
+                         ):
+        if glade_file == 'default':
+            glade_file = None
+
+        if not g_alive:
+            glade_file = None
+
+        self.g = gremlin_view.GremlinView(glade_file=glade_file
+               ,parent=self # works with glade running
+               ,width=width
+               ,height=height
+               ,alive=g_alive
+               ,gtk_theme_name=gtk_theme_name
+               )
+
+# vim: sts=4 sw=4 et