Split DefaultGramplets into their respective files

svn: r11790

src/plugins/gramplet/PythonGramplet.py

@@ -0,0 +1,157 @@
+# Gramps - a GTK+/GNOME based genealogy program
+#
+# Copyright (C) 2007-2009  Douglas S. Blank <doug.blank@gmail.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
+
+# $Id$
+
+#------------------------------------------------------------------------
+#
+# Python modules
+#
+#------------------------------------------------------------------------
+import sys
+
+#------------------------------------------------------------------------
+#
+# GRAMPS modules
+#
+#------------------------------------------------------------------------
+from DataViews import register, Gramplet
+from TransUtils import sgettext as _
+import gen
+
+#------------------------------------------------------------------------
+#
+# Gramplet class
+#
+#------------------------------------------------------------------------
+class PythonGramplet(Gramplet):
+    def init(self):
+        import gc
+        gc.set_debug(gc.DEBUG_UNCOLLECTABLE|gc.DEBUG_OBJECTS|gc.DEBUG_SAVEALL)
+        self.prompt = ">"
+        self.set_tooltip(_("Enter Python expressions"))
+        self.gc = gc
+        self.env = {"dbstate": self.gui.dbstate,
+                    "uistate": self.gui.uistate,
+                    "gc": self.gc,
+                    "self": self,
+                    _("class name|Date"): gen.lib.Date,
+                    }
+        # GUI setup:
+        self.gui.textview.set_editable(True)
+        self.set_text("Python %s\n%s " % (sys.version, self.prompt))
+        self.gui.textview.connect('key-press-event', self.on_key_press)
+
+    def format_exception(self, max_tb_level=10):
+        retval = ''
+        cla, exc, trbk = sys.exc_info()
+        retval += _("Error") + (" : %s %s" %(cla, exc))
+        return retval
+
+    def process_command(self, command):
+        # update states, in case of change:
+        self.env["dbstate"] = self.gui.dbstate
+        self.env["uistate"] = self.gui.uistate
+        _retval = None
+        if "_retval" in self.env:
+            del self.env["_retval"]
+        exp1 = """_retval = """ + command
+        exp2 = command.strip()
+        try:
+            _retval = eval(exp2, self.env)
+        except:
+            try:
+                exec exp1 in self.env
+            except:
+                try:
+                    exec exp2 in self.env
+                except:
+                    _retval = self.format_exception()
+        if "_retval" in self.env:
+            _retval = self.env["_retval"]
+        return _retval
+
+    def on_key_press(self, widget, event):
+        import gtk
+        if (event.keyval == gtk.keysyms.Home or
+            ((event.keyval == gtk.keysyms.a and 
+              event.get_state() & gtk.gdk.CONTROL_MASK))): 
+            buffer = widget.get_buffer()
+            cursor_pos = buffer.get_property("cursor-position")
+            iter = buffer.get_iter_at_offset(cursor_pos)
+            line_cnt = iter.get_line()
+            start = buffer.get_iter_at_line(line_cnt)
+            start.forward_chars(2)
+            buffer.place_cursor(start)
+            return True
+        elif (event.keyval == gtk.keysyms.End or 
+              (event.keyval == gtk.keysyms.e and 
+               event.get_state() & gtk.gdk.CONTROL_MASK)): 
+            buffer = widget.get_buffer()
+            end = buffer.get_end_iter()
+            buffer.place_cursor(end)
+            return True
+        elif event.keyval == gtk.keysyms.Return: 
+            echo = False
+            buffer = widget.get_buffer()
+            cursor_pos = buffer.get_property("cursor-position")
+            iter = buffer.get_iter_at_offset(cursor_pos)
+            line_cnt = iter.get_line()
+            start = buffer.get_iter_at_line(line_cnt)
+            line_len = iter.get_chars_in_line()
+            buffer_cnt = buffer.get_line_count()
+            if (buffer_cnt - line_cnt) > 1:
+                line_len -= 1
+                echo = True
+            end = buffer.get_iter_at_line_offset(line_cnt, line_len)
+            line = buffer.get_text(start, end)
+            self.append_text("\n")
+            if line.startswith(self.prompt):
+                line = line[1:].strip()
+            else:
+                self.append_text("%s " % self.prompt)
+                end = buffer.get_end_iter()
+                buffer.place_cursor(end)
+                return True
+            if echo:
+                self.append_text(("%s " % self.prompt) + line)
+                end = buffer.get_end_iter()
+                buffer.place_cursor(end)
+                return True
+            _retval = self.process_command(line)
+            if _retval is not None:
+                self.append_text("%s\n" % str(_retval))
+            self.append_text("%s " % self.prompt)
+            end = buffer.get_end_iter()
+            buffer.place_cursor(end)
+            return True
+        return False
+
+#------------------------------------------------------------------------
+#
+# Register Gramplet
+#
+#------------------------------------------------------------------------
+register(type="gramplet", 
+         name="Python Gramplet", 
+         tname=_("Python Gramplet"), 
+         height=250,
+         content = PythonGramplet,
+         title=_("Python Shell"),
+         )
+