2005-03-24 Richard Taylor <rjt-gramps@thegrindstone.me.uk>
* src/DdTargets.py: new module to manage drag and drop target data. * src/Makefile.am: added DdTargets.py * src/ScratchPad.py: modified to use DdTargets.py. This is the first stage. I will look at modifying EditPersons.py to use DdTargets.py next svn: r4231
This commit is contained in:
Richard Taylor
parent
77b07938b4
commit
cced1bce37
@ -1,3 +1,9 @@
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2005-03-24 Richard Taylor <rjt-gramps@thegrindstone.me.uk>
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* src/DdTargets.py: new module to manage drag and drop target data.
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* src/Makefile.am: added DdTargets.py
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* src/ScratchPad.py: modified to use DdTargets.py. This is the first
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stage. I will look at modifying EditPersons.py to use DdTargets.py next.
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2005-03-23 Martin Hawlisch <Martin.Hawlisch@gmx.de>
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* src/RelLib.py: Added self.get_date() to get_text_data_child_list().
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This way the date is searchable in the full-text search filter.
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187
gramps2/src/DdTargets.py
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187
gramps2/src/DdTargets.py
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# -*- python -*-
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# -*- coding: utf-8 -*-
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#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2000-2005 Donald N. Allingham
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# $Id$
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"""
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This module provides management of all the drag and drop target information
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required by gramps widgets.
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Adding a new drag and drop target.
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==================================
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To add a new target: add a new _DdType to in _DdTargets.__init__ and
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then add this new type to the list returned from either all_text_types()
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and all_text_targets() or or all_gramps_targets() and all_gramps_types().
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Usage
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=====
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The module defines a singleton instance of _DdTargets called DdTargets.
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from DdTargets import DdTargets
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drag_dest_set(gtk.DEST_DEFAULT_ALL,
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DdTargets.all_targets(),
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ACTION_COPY)
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"""
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class _DdType:
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"""Represents the fields needed by a drag and drop traget."""
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_APP_ID_OFFSET = 40 # Starting value of app_ids
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def __init__(self,container,drag_type,target_flags=0,app_id=None):
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"""Create a new DdType:
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drag_type: string holding the name of the type.
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target_flags: int value that will be passed to drop target.
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app_id: integer target id passed to drop target.
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"""
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self.drag_type = drag_type
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self.target_flags = target_flags
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self.app_id = app_id or self._calculate_id()
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container.insert(self)
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def _calculate_id(self):
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"""return the next available app_id."""
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id = _DdType._APP_ID_OFFSET
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_DdType._APP_ID_OFFSET += 1
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return id
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def target(self):
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"""return the full target information in the format
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required by the Gtk functions."""
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return (self.drag_type,self.target_flags,self.app_id)
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class _DdTargets(object):
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"""A single class that manages all the drag and drop targets."""
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_instance = None # Singleton instance
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def __new__(cls):
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"""Ensure that we never have more than one instance."""
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if _DdTargets._instance is not None:
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return _DdTargets._instance
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_DdTargets._instance = object.__new__(cls)
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return _DdTargets._instance
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def __init__(self):
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"""Set up the drag and drop targets."""
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self._type_map = {}
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self._app_id_map = {}
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self.URL = _DdType(self,'url',0,0)
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self.EVENT = _DdType(self,'pevent',0,1)
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self.ATTRIBUTE = _DdType(self,'pattr',0,2)
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self.ADDRESS = _DdType(self,'paddr',0,3)
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self.SOURCEREF = _DdType(self,'srcref',0,4)
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self.TEXT = _DdType(self,'TEXT',0,1)
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self.TEXT_MIME = _DdType(self,'text/plain',0,0)
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self.STRING = _DdType(self,'STRING', 0, 2)
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self.COMPOUND_TEXT = _DdType(self,'COMPOUND_TEXT', 0, 3)
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self.UTF8_STRING = _DdType(self,'UTF8_STRING', 0, 4)
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def insert(self,dd_type):
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"""Add a target to the lookup lists. These lists are
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used purely for performance reasons."""
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self._type_map[dd_type.drag_type] = dd_type
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self._app_id_map[dd_type.app_id] = dd_type
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def get_dd_type_from_type_name(self,type_name):
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return self._type_map.get(type_name,None)
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def get_dd_type_from_app_id(self,app_id):
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return self._app_id_map.get(app_id,None)
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def is_text_type(self,type_name):
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return type_name in self.all_text_types()
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def all_text_types(self):
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"""return a list of all the type names that could be
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used as the type of a string."""
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return (self.TEXT.drag_type,
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self.TEXT_MIME.drag_type,
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self.STRING.drag_type,
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self.COMPOUND_TEXT.drag_type,
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self.UTF8_STRING.drag_type)
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def is_gramps_type(self,type_name):
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return type_name in self.all_gramps_types()
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def all_gramps_types(self):
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"""return a list of all the type names that are internal
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to gramps."""
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return (self.URL.drag_type,
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self.EVENT.drag_type,
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self.ATTRIBUTE.drag_type,
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self.ADDRESS.drag_type,
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self.SOURCEREF.drag_type)
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def all_text_targets(self):
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"""return a list of all the targets that could be used
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for text."""
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return (self.TEXT.target(),
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self.TEXT_MIME.target(),
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self.STRING.target(),
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self.COMPOUND_TEXT.target(),
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self.UTF8_STRING.target())
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def all_gramps_targets(self):
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"""return a list off the internal gramps targets."""
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return (self.URL.target(),
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self.EVENT.target(),
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self.ATTRIBUTE.target(),
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self.ADDRESS.target(),
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self.SOURCEREF.target())
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def all_targets(self):
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"""return a list of all the known targets."""
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return self.all_gramps_targets() + self.all_text_targets()
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# Create the singleton instance.
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DdTargets = _DdTargets()
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#
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# Below here is test code.
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#
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if __name__ == "__main__":
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print repr(DdTargets.all_text_types())
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print repr(DdTargets.URL)
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print DdTargets.is_gramps_type('pevent')
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@ -40,6 +40,7 @@ gdir_PYTHON = \
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DateHandler.py\
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DateDisplay.py\
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DbPrompter.py\
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DdTargets.py\
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DisplayModels.py\
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DisplayTrace.py\
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EditPerson.py\
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@ -54,39 +54,41 @@ from gtk.gdk import ACTION_COPY, BUTTON1_MASK
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#
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#-------------------------------------------------------------------------
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text_targets = ['text/plain',
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'TEXT',
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'STRING',
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'COMPOUND_TEXT',
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'UTF8_STRING']
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from DdTargets import DdTargets
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text_tgts = [('text/plain',0,0),
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('TEXT', 0, 1),
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('STRING', 0, 2),
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('COMPOUND_TEXT', 0, 3),
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('UTF8_STRING', 0, 4)]
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##text_targets = ['text/plain',
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## 'TEXT',
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## 'STRING',
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## 'COMPOUND_TEXT',
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## 'UTF8_STRING']
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gramps_targets = ['url',
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'pevent',
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'pattr',
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'paddr',
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'srcref']
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##text_tgts = [('text/plain',0,0),
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## ('TEXT', 0, 1),
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## ('STRING', 0, 2),
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## ('COMPOUND_TEXT', 0, 3),
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## ('UTF8_STRING', 0, 4)]
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pycode_tgts = [('url', 0, 0),
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('pevent', 0, 1),
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('pattr', 0, 2),
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('paddr', 0, 3),
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('srcref', 0, 4)] + text_tgts
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##gramps_targets = ['url',
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## 'pevent',
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## 'pattr',
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## 'paddr',
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## 'srcref']
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##pycode_tgts = [('url', 0, 0),
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## ('pevent', 0, 1),
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## ('pattr', 0, 2),
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## ('paddr', 0, 3),
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## ('srcref', 0, 4)] + text_tgts
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TEXT_TARGET = 'TEXT'
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##TEXT_TARGET = 'TEXT'
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target_map = {'url':[('url', 0, 0)],
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'pevent': [('pevent', 0, 1)],
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'pattr': [('pattr', 0, 2)],
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'paddr': [('paddr', 0, 3)],
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'srcref': [('srcref', 0, 4)],
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TEXT_TARGET: text_tgts}
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##target_map = {'url':[('url', 0, 0)],
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## 'pevent': [('pevent', 0, 1)],
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## 'pattr': [('pattr', 0, 2)],
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## 'paddr': [('paddr', 0, 3)],
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## 'srcref': [('srcref', 0, 4)],
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## TEXT_TARGET: text_tgts}
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@ -149,7 +151,8 @@ class ScratchPadWindow:
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"on_scratchPad_delete_event": self.on_delete_event
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})
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self.object_list.drag_dest_set(gtk.DEST_DEFAULT_ALL, pycode_tgts,
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self.object_list.drag_dest_set(gtk.DEST_DEFAULT_ALL,
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DdTargets.all_targets(),
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ACTION_COPY)
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self.object_list.connect('drag_data_get', self.object_drag_data_get)
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@ -259,8 +262,6 @@ class ScratchPadWindow:
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self.redraw_object_list()
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def on_object_select_row(self,obj):
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global target_map
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global TEXT_TARGET
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o = self.otree.get_selected_objects()
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@ -271,19 +272,19 @@ class ScratchPadWindow:
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# union with gramps_types
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if len([target for target \
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in obj_targets if target in gramps_targets]) > 0:
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in obj_targets if DdTargets.is_gramps_type(target)]) > 0:
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exec 'data = %s' % o[0]['data']
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exec 'mytype = "%s"' % data[0]
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target = target_map[mytype]
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target = DdTargets.get_dd_type_from_type_name(mytype).target()
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# Union with text targets
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elif len([target for target \
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in obj_targets if target in text_targets]) > 0:
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target = target_map[TEXT_TARGET]
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in obj_targets if DdTargets.is_text_type(target)]) > 0:
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target = DdTargets.TEXT.target()
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self.object_list.drag_source_unset()
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self.object_list.drag_source_set(BUTTON1_MASK, target, ACTION_COPY)
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self.object_list.drag_source_set(BUTTON1_MASK, [target], ACTION_COPY)
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def on_update_object_clicked(self, obj):
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@ -294,9 +295,6 @@ class ScratchPadWindow:
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def object_drag_data_get(self,widget, context, sel_data, info, time):
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global gramps_targets
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global text_targets
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o = self.otree.get_selected_objects()
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if len(o):
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@ -306,7 +304,7 @@ class ScratchPadWindow:
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# union with gramps_types
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if len([target for target \
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in obj_targets if target in gramps_targets]) > 0:
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in obj_targets if DdTargets.is_gramps_type(target)]) > 0:
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exec 'data = %s' % o[0]['data']
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exec 'mytype = "%s"' % data[0]
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@ -317,7 +315,7 @@ class ScratchPadWindow:
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# Union with text targets
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elif len([target for target \
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in obj_targets if target in text_targets]) > 0:
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in obj_targets if DdTargets.is_text_type(target)]) > 0:
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send_data = str(o[0]['data'])
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sel_data.set(sel_data.target, bits_per, send_data)
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@ -335,9 +333,6 @@ class ScratchPadWindow:
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def redraw_object_list(self):
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"""Redraws the address list"""
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global gramps_targets
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global text_targets
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self.otree.clear()
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for obj in self.olist:
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@ -345,7 +340,7 @@ class ScratchPadWindow:
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# union with gramps_types
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if len([target for target \
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in obj_targets if target in gramps_targets]) > 0:
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in obj_targets if DdTargets.is_gramps_type(target)]) > 0:
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exec 'unpack_data = %s' % obj['data']
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exec 'mytype = "%s"' % unpack_data[0]
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@ -353,7 +348,7 @@ class ScratchPadWindow:
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node = None
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if mytype == 'paddr':
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if mytype == DdTargets.ADDRESS.drag_type:
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location = "%s %s %s %s" % (data.get_street(),data.get_city(),
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data.get_state(),data.get_country())
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node = self.otree.add([_("Address"),
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@ -361,23 +356,23 @@ class ScratchPadWindow:
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location,
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self.generate_addr_tooltip(data)],obj)
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elif mytype == 'pevent':
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elif mytype == DdTargets.EVENT.drag_type:
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node = self.otree.add([_("Event"),
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const.display_pevent(data.get_name()),
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data.get_description(),
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self.generate_event_tooltip(data)],obj)
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elif mytype == 'url':
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elif mytype == DdTargets.URL.drag_type:
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node = self.otree.add([_("Url"),
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data.get_path(),
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data.get_description(),
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self.generate_url_tooltip(data)],obj)
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elif mytype == 'pattr':
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elif mytype == DdTargets.ATTRIBUTE.drag_type:
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node = self.otree.add([_("Attribute"),
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const.display_pattr(data.get_type()),
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data.get_value(),
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self.generate_pattr_tooltip(data)],obj)
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elif mytype == 'srcref':
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elif mytype == DdTargets.SOURCEREF.drag_type:
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base = self.db.get_source_from_handle(data.get_base_handle())
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node = self.otree.add([_("SourceRef"),
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base.get_title(),
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@ -386,7 +381,7 @@ class ScratchPadWindow:
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# Union with text targets
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elif len([target for target \
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in obj_targets if target in text_targets]) > 0:
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in obj_targets if DdTargets.is_text_type(target)]) > 0:
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node = self.otree.add([_("Text"),
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"",
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obj['data'],
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