#-------------------------------------------------------------------------
#
# Python modules
#
#-------------------------------------------------------------------------
from gettext import gettext as _
import gc
import re
import cgi

#-------------------------------------------------------------------------
#
# GTK/Gnome modules
#
#-------------------------------------------------------------------------
import gobject
import gtk
import pango

#-------------------------------------------------------------------------
#
# Gramps Modules
#
#-------------------------------------------------------------------------
import RelLib
import PageView
import NameDisplay
import Utils
import DateHandler
import ImgManip
import Config
import GrampsWidgets
import Errors
from PluginUtils import ReportUtils

_GenderCode = {
    RelLib.Person.MALE    : u'\u2642', 
    RelLib.Person.FEMALE  : u'\u2640', 
    RelLib.Person.UNKNOWN : u'\u2650', 
    }

_NAME_START   = 0
_LABEL_START  = 1
_LABEL_STOP   = 2
_DATA_START   = _LABEL_STOP
_DATA_STOP    = _DATA_START+1
_BTN_START    = _DATA_STOP
_BTN_STOP     = _BTN_START+2
_PLABEL_START = 2
_PLABEL_STOP  = _PLABEL_START+1
_PDATA_START  = _PLABEL_STOP
_PDATA_STOP   = _PDATA_START+2
_PDTLS_START  = _PLABEL_STOP
_PDTLS_STOP   = _PDTLS_START+2
_CLABEL_START = _PLABEL_START+1
_CLABEL_STOP  = _CLABEL_START+1
_CDATA_START  = _CLABEL_STOP
_CDATA_STOP   = _CDATA_START+1
_CDTLS_START  = _CDATA_START
_CDTLS_STOP   = _CDTLS_START+1
_ALABEL_START = 1
_ALABEL_STOP  = _ALABEL_START+1
_ADATA_START  = _ALABEL_STOP
_ADATA_STOP   = _ADATA_START+3
_SDATA_START  = 3
_SDATA_STOP   = 5

class AttachList:

    def __init__(self):
        self.list = []
        self.max_x = 0
        self.max_y = 0

    def attach(self, widget, x0, x1, y0, y1, xoptions=gtk.EXPAND|gtk.FILL, 
               yoptions=gtk.EXPAND|gtk.FILL):
        assert(x1>x0)
        self.list.append((widget, x0, x1, y0, y1, xoptions, yoptions))
        self.max_x = max(self.max_x, x1)
        self.max_y = max(self.max_y, y1)

class FamilyView(PageView.PersonNavView):

    def __init__(self, dbstate, uistate):
        
        PageView.PersonNavView.__init__(self, 'Relationship View',
                                        dbstate, uistate)
        
        dbstate.connect('database-changed', self.change_db)
        dbstate.connect('active-changed', self.change_person)
        self.show_siblings = Config.get_family_siblings()
        if self.show_siblings == None:
            self.show_siblings = True
        self.show_details = Config.get_family_details()
        if self.show_details == None:
            self.show_details = True
        self.connect_to_db(dbstate.db)
        self.redrawing = False
        self.child = None
            
    def connect_to_db(self, db):
        db.connect('person-update', self.person_update)
        db.connect('person-rebuild', self.person_rebuild)
        db.connect('family-update', self.family_update)
        db.connect('family-add',    self.family_add)
        db.connect('family-delete', self.family_delete)
        db.connect('family-rebuild', self.family_rebuild)

    def person_update(self, handle_list):
        if self.dbstate.active:
            while not self.change_person(self.dbstate.active.handle):
                pass

    def person_rebuild(self):
        if self.dbstate.active:
            while not self.change_person(self.dbstate.active.handle):
                pass

    def family_update(self, handle_list):
        if self.dbstate.active:
            while not self.change_person(self.dbstate.active.handle):
                pass

    def family_add(self, handle_list):
        if self.dbstate.active:
            while not self.change_person(self.dbstate.active.handle):
                pass

    def family_delete(self, handle_list):
        if self.dbstate.active:
            while not self.change_person(self.dbstate.active.handle):
                pass

    def family_rebuild(self):
        if self.dbstate.active:
            while not self.change_person(self.dbstate.active.handle):
                pass
            
    def get_stock(self):
        """
        Returns the name of the stock icon to use for the display.
        This assumes that this icon has already been registered with
        GNOME as a stock icon.
        """
        return 'gramps-family'

    def build_widget(self):
        self.scroll = gtk.ScrolledWindow()
        self.scroll.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        self.scroll.show()
        self.vbox = gtk.VBox()
        self.vbox.show()
        self.child = None
        self.scroll.add_with_viewport(self.vbox)
        return self.scroll

    def ui_definition(self):
        """
        Specifies the UIManager XML code that defines the menus and buttons
        associated with the interface.
        """
        return '''<ui>
          <menubar name="MenuBar">
            <menu action="GoMenu">
              <placeholder name="CommonGo">
                <menuitem action="Back"/>
                <menuitem action="Forward"/>
                <separator/>
                <menuitem action="HomePerson"/>
                <separator/>
              </placeholder>
            </menu>
            <menu action="ViewMenu">
              <menuitem action="Siblings"/>
              <menuitem action="Details"/>
            </menu>
          </menubar>
          <toolbar name="ToolBar">
            <placeholder name="CommonNavigation">
              <toolitem action="Back"/>  
              <toolitem action="Forward"/>  
              <toolitem action="HomePerson"/>
            </placeholder>
          </toolbar>
          <popup name="Popup">
            <menuitem action="Back"/>
            <menuitem action="Forward"/>
            <menuitem action="HomePerson"/>
            <separator/>
          </popup>
        </ui>'''

    def define_actions(self):
        PageView.PersonNavView.define_actions(self)

        self.add_toggle_action('Details', None, _('Show details'), 
                               None, None, self.details_toggle, 
                               self.show_details)
        self.add_toggle_action('Siblings', None, _('Show siblings'), 
                               None, None, self.siblings_toggle, 
                               self.show_siblings)

    def siblings_toggle(self, obj):
        self.show_siblings = obj.get_active()
        self.change_person(self.dbstate.active.handle)
        Config.save_family_siblings(self.show_siblings)

    def details_toggle(self, obj):
        self.show_details = obj.get_active()
        self.change_person(self.dbstate.active.handle)
        Config.save_family_details(self.show_details)

    def change_db(self, db):
        self.connect_to_db(db)
        if self.child:
            self.vbox.remove(self.child)
            self.child = None
        self.dbstate.db.connect('family-update', self.redraw)
        self.dbstate.db.connect('family-add', self.redraw)
        self.dbstate.db.connect('family-delete', self.redraw)
        self.dbstate.db.connect('person-update', self.redraw)
        self.dbstate.db.connect('person-add', self.redraw)
        self.dbstate.db.connect('person-delete', self.redraw)

    def get_name(self, handle, use_gender=False):
        if handle:
            p = self.dbstate.db.get_person_from_handle(handle)
            name = NameDisplay.displayer.display(p)
            if use_gender:
                gender = _GenderCode[p.gender]
            else:
                gender = ""
            return (name, gender)
        else:
            return (_(u"Unknown"), "")

    def redraw(self, *obj):
        if self.dbstate.active:
            self.change_person(self.dbstate.active.handle)
        
    def change_person(self, obj):
        if self.redrawing:
            return False
        self.redrawing = True

        old_child = self.child
        self.attach = AttachList()

        person = self.dbstate.db.get_person_from_handle(obj)
        if not person:
            self.redrawing = False
            return

        self.row = 5
        family_handle_list = person.get_parent_family_handle_list()
        if family_handle_list:
            for family_handle in family_handle_list:
                if family_handle:
                    self.write_parents(family_handle)
        else:
            self.write_label("%s:" % _('Parents'), None, True)
            self.row += 1
                
        family_handle_list = person.get_family_handle_list()
        if family_handle_list:
            for family_handle in family_handle_list:
                if family_handle:
                    self.write_family(family_handle)
        else:
            self.write_label("%s:" % _('Family'), None, False)
            self.row += 1

        self.row = 1
        self.write_title(person)

        # Here it is necessary to beat GTK into submission. For some
        # bizzare reason, if you have an empty column that is spanned, 
        # you lose the appropriate FILL handling. So, we need to see if
        # column 3 is unused (usually if there is no siblings or children.
        # If so, we need to subtract one index of each x coord > 3.
                
        found = False
        for d in self.attach.list:
            if d[1] == 4 or d[2] == 4:
                found = True

        if found:
            cols = self.attach.max_x
        else:
            cols = self.attach.max_x-1

        self.child = gtk.Table(self.attach.max_y, cols)
        self.child.set_border_width(12)
        self.child.set_col_spacings(12)
        self.child.set_row_spacings(9)

        for d in self.attach.list:
            x0 = d[1]
            x1 = d[2]
            if not found:
                if x0 > 4:
                   x0 -= 1
                if x1 > 4:
                    x1 -= 1
            self.child.attach(d[0], x0, x1, d[3], d[4], d[5], d[6])

        self.child.show_all()
        if old_child:
            self.vbox.remove(old_child)

        self.vbox.pack_start(self.child, False)
        self.redrawing = False
        return True

    def write_title(self, person):

        # name and edit button
        name = NameDisplay.displayer.display(person)
        fmt = '<span size="larger" weight="bold">%s %s</span>'
        text = fmt % (cgi.escape(name), _GenderCode[person.gender])
        label = GrampsWidgets.MarkupLabel(text)
        button = GrampsWidgets.IconButton(self.edit_button_press, person.handle)

        hbox = GrampsWidgets.LinkBox(label, button)
                
        # GRAMPS ID
        self.row = 1

        self.write_person_data("%s:" % _('ID'), person.gramps_id)

        # birth/death events

        birth_ref = person.get_birth_ref()
        if birth_ref:
            birth = self.dbstate.db.get_event_from_handle(birth_ref.ref)
        else:
            birth = None
        self.write_person_event("%s:" % _('Birth'), birth)
        
        death_ref = person.get_death_ref()
        if death_ref:
            death = self.dbstate.db.get_event_from_handle(death_ref.ref)
        else:
            death = None
        self.write_person_event("%s:" % _('Death'), death)

        # separator
        end = self.attach.max_x
        sep = gtk.HSeparator()
        sep.show()
        self.attach.attach(hbox, _NAME_START, end, 0, 1, gtk.FILL|gtk.EXPAND)

        # image
        image_list = person.get_media_list()
        if image_list:
            mobj = self.dbstate.db.get_object_from_handle(image_list[0].ref)
            if mobj.get_mime_type()[0:5] == "image":
                pixbuf = ImgManip.get_thumbnail_image(mobj.get_path())
                image = gtk.Image()
                image.set_from_pixbuf(pixbuf)
                image.show()
                self.attach.attach(image, end, end+1, 0, 4, 
                                   xoptions=gtk.SHRINK|gtk.FILL)

        self.attach.attach(sep, 0, self.attach.max_x, 4, 5)

    def write_person_event(self, ename, event):
        if event:
            dobj = event.get_date_object()
            phandle = event.get_place_handle()
            if phandle:
                pname = self.place_name(phandle)
            else:
                pname = None
            date_str = DateHandler.displayer.display(dobj)

            value = {
                'date' : DateHandler.displayer.display(dobj), 
                'place' : pname, 
                }
        else:
            pname = None
            dobj = None

        if dobj:
            if pname:
                self.write_person_data(ename, 
                                       _('%(date)s in %(place)s') % value)
            else:
                self.write_person_data(ename, '%(date)s' % value)
        elif pname:
            self.write_person_data(ename, pname)
        else:
            self.write_person_data(ename, '')

    def write_person_data(self, title, data):
        self.attach.attach(GrampsWidgets.BasicLabel(title), _ALABEL_START, 
                           _ALABEL_STOP, self.row, self.row+1, 
                           xoptions=gtk.FILL|gtk.SHRINK)
        self.attach.attach(GrampsWidgets.BasicLabel(data), 
                           _ADATA_START, _ADATA_STOP, 
                           self.row, self.row+1)
        self.row += 1

    def write_label(self, title, family, is_parent):
        msg = "<i><b>%s</b></i>" % cgi.escape(title)
        self.attach.attach(GrampsWidgets.MarkupLabel(msg), 
                           _LABEL_START, _LABEL_STOP, 
                           self.row, self.row+1, gtk.SHRINK|gtk.FILL)

        if family:
            value = family.gramps_id
        else:
            value = ""
        self.attach.attach(GrampsWidgets.BasicLabel(value), 
                           _DATA_START, _DATA_STOP, 
                           self.row, self.row+1, gtk.SHRINK|gtk.FILL)

        hbox = gtk.HBox()
        hbox.set_spacing(12)
        if is_parent:
            call_fcn = self.add_parent_family
            del_fcn = self.delete_parent_family
        else:
            call_fcn = self.add_family
            del_fcn = self.delete_family
            
        add = GrampsWidgets.IconButton(call_fcn, None, gtk.STOCK_ADD)
        hbox.pack_start(add, False)

        if is_parent:
            add = GrampsWidgets.IconButton(self.select_family, None, gtk.STOCK_INDEX)
            hbox.pack_start(add, False)

        if family:
            edit = GrampsWidgets.IconButton(self.edit_family, family.handle, 
                                            gtk.STOCK_EDIT)
            hbox.pack_start(edit, False)
            delete = GrampsWidgets.IconButton(del_fcn, family.handle, 
                                              gtk.STOCK_REMOVE)
            hbox.pack_start(delete, False)
        self.attach.attach(hbox, _BTN_START, _BTN_STOP, self.row, self.row+1)
        self.row += 1
        
######################################################################

    def write_parents(self, family_handle):
        family = self.dbstate.db.get_family_from_handle(family_handle)
        if not family:
            return
        self.write_label("%s:" % _('Parents'), family, True), 
        self.write_person(_('Father'), family.get_father_handle())
        if self.show_details:
            value = self.info_string(family.get_father_handle())
            if value:
                self.attach.attach(GrampsWidgets.BasicLabel(value), _PDTLS_START, 
                                   _PDTLS_STOP, self.row, self.row+1)
                self.row += 1
        self.write_person(_('Mother'), family.get_mother_handle())
        if self.show_details:
            value = self.info_string(family.get_mother_handle())
            if value:
                self.attach.attach(GrampsWidgets.BasicLabel(value), _PDTLS_START, 
                                   _PDTLS_STOP, self.row, self.row+1)
                self.row += 1

        if self.show_siblings:
            active = self.dbstate.active.handle

            child_list = [ref.ref for ref in family.get_child_ref_list()\
                          if ref.ref != active]

            label = _("Siblings")
            if child_list:
                for child_handle in child_list:
                    self.write_child(label, child_handle)
                    label = u""
        self.row += 1

    def write_person(self, title, handle):
        if title:
            format = '<span weight="bold">%s: </span>'
        else:
            format = "%s"

        label = GrampsWidgets.MarkupLabel(format % cgi.escape(title))
        self.attach.attach(label, _PLABEL_START, _PLABEL_STOP, self.row, 
                           self.row+1, xoptions=gtk.FILL|gtk.SHRINK)

        if handle:
            link_label = GrampsWidgets.LinkLabel(self.get_name(handle, True), 
                                                 self.button_press, handle)
            button = GrampsWidgets.IconButton(self.edit_button_press, handle)
            self.attach.attach(GrampsWidgets.LinkBox(link_label, button), 
                               _PDATA_START, _PDATA_STOP, self.row, self.row+1)
        else:
            link_label = gtk.Label(_('Unknown'))
            link_label.set_alignment(0, 0.5)
            link_label.show()
            self.attach.attach(link_label, 
                               _PDATA_START, _PDATA_STOP, self.row, self.row+1)
            
        self.row += 1

    def write_child(self, title, handle):
        if title:
            format = '<span weight="bold">%s: </span>'
        else:
            format = "%s"

        label = GrampsWidgets.MarkupLabel(format % cgi.escape(title))
        self.attach.attach(label, _CLABEL_START, _CLABEL_STOP, self.row, 
                           self.row+1, xoptions=gtk.FILL|gtk.SHRINK)

        link_label = GrampsWidgets.LinkLabel(self.get_name(handle, True), 
                                             self.button_press, handle)
        button = GrampsWidgets.IconButton(self.edit_button_press, handle)
        self.attach.attach(GrampsWidgets.LinkBox(link_label, button), 
                           _CDATA_START, _CDATA_STOP, self.row, self.row+1, 
                           xoptions=gtk.EXPAND|gtk.FILL)

        self.row += 1

        if self.show_details:
            value = self.info_string(handle)
            if value:
                self.attach.attach(GrampsWidgets.BasicLabel(value), 
                                   _CDTLS_START, _CDTLS_STOP, self.row, 
                                   self.row+1)
                self.row += 1
        
    def write_data(self, title, start_col=_SDATA_START, stop_col=_SDATA_STOP):
        self.attach.attach(GrampsWidgets.BasicLabel(title), start_col, stop_col, 
                           self.row, self.row+1, xoptions=gtk.EXPAND|gtk.FILL)
        self.row += 1

    def info_string(self, handle):
        child = self.dbstate.db.get_person_from_handle(handle)
        if not child:
            return None
        birth_ref = child.get_birth_ref()
        death_ref = child.get_death_ref()
        value = None
        if birth_ref or death_ref:
            info = ReportUtils.get_birth_death_strings(self.dbstate.db, child)
            bdate = info[0]
            ddate = info[4]
            if bdate and ddate:
                value = _("b. %s, d. %s") % (bdate, ddate)
            elif bdate:
                value = _("b. %s") % (bdate)
            elif ddate:
                value = _("d. %s") % (ddate)
        return value

    def button_press(self, obj, event, handle):
        if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
            self.dbstate.change_active_handle(handle)

    def write_relationship(self, family):
        rtype = family.get_relationship()
        if type(rtype) == tuple:
            if rtype[0] == RelLib.Family.CUSTOM:
                rel_text = rtype[1]
            else:
                rel_text = Utils.family_relations[rtype[0]]
        else:
            rel_text = Utils.family_relations[rtype]
        self.write_data(_('Relationship type: %s') % rel_text)

    def place_name(self, handle):
        p = self.dbstate.db.get_place_from_handle(handle)
        return p.get_title()

    def write_marriage(self, family):
        value = False
        for event_ref in family.get_event_ref_list():
            handle = event_ref.ref
            event = self.dbstate.db.get_event_from_handle(handle)
            etype = event.get_type()
            if etype[0] == RelLib.Event.MARRIAGE:
                self.write_event_ref(_('Marriage'), event)
                value = True
        return value

    def write_event_ref(self, ename, event, start_col=_SDATA_START, 
                        stop_col=_SDATA_STOP):
        if event:
            dobj = event.get_date_object()
            phandle = event.get_place_handle()
            if phandle:
                pname = self.place_name(phandle)
            else:
                pname = None
            date_str = DateHandler.displayer.display(dobj)

            value = {
                'date' : DateHandler.displayer.display(dobj), 
                'place' : pname, 
                'event_type' : ename, 
                }
        else:
            pname = None
            dobj = None
            value = { 'event_type' : ename, }

        if dobj:
            if pname:
                self.write_data(_('%(event_type)s: %(date)s in %(place)s') %
                                value, start_col, stop_col)
            else:
                self.write_data(_('%(event_type)s: %(date)s') % value, 
                                start_col, stop_col)
        elif pname:
            self.write_data(_('%(event_type)s: %(place)s') % value, 
                            start_col, stop_col)
        else:
            self.write_data(_('%(event_type)s:') % value, 
                            start_col, stop_col)

    def write_family(self, family_handle):
        family = self.dbstate.db.get_family_from_handle(family_handle)
        father_handle = family.get_father_handle()
        mother_handle = family.get_mother_handle()
        if self.dbstate.active.handle == father_handle:
            handle = mother_handle
        else:
            handle = father_handle

        self.write_label("%s:" % _('Family'), family, False)
        if handle:
            self.write_person(_('Spouse'), handle)

            value = self.info_string(handle)
            if value:
                self.attach.attach(GrampsWidgets.BasicLabel(value), 
                                   _PDTLS_START, _PDTLS_STOP, 
                                   self.row, self.row+1)
                self.row += 1
            if not self.write_marriage(family):
                self.write_relationship(family)
        
        child_list = family.get_child_ref_list()
        label = _("Children")
        if child_list:
            for child_ref in child_list:
                self.write_child(label, child_ref.ref)
                label = u""

        self.row += 1

    def edit_button_press(self, obj, event, handle):
        if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
            from Editors import EditPerson
            person = self.dbstate.db.get_person_from_handle(handle)
            try:
                EditPerson(self.dbstate, self.uistate, [], person)
            except Errors.WindowActiveError:
                pass
        
    def edit_person(self, obj, handle):
        from Editors import EditPerson
        person = self.dbstate.db.get_person_from_handle(handle)
        try:
            EditPerson(self.dbstate, self.uistate, [], person)
        except Errors.WindowActiveError:
            pass

    def edit_family(self, obj, event, handle):
        if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
            from Editors import EditFamily
            family = self.dbstate.db.get_family_from_handle(handle)
            try:
                EditFamily(self.dbstate, self.uistate, [], family)
            except Errors.WindowActiveError:
                pass

    def add_family(self, obj, event, handle):
        if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
            from Editors import EditFamily
            family = RelLib.Family()
            person = self.dbstate.active
            
            if person.gender == RelLib.Person.MALE:
                family.set_father_handle(person.handle)
            else:
                family.set_mother_handle(person.handle)
                
            try:
                EditFamily(self.dbstate, self.uistate, [], family)
            except Errors.WindowActiveError:
                pass

    def select_family(self, obj, event, handle):
        if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
            from SelectFamily import SelectFamily

            dialog = SelectFamily(self.dbstate.db, _('Select Family'))
            family = dialog.run()

            if family:
                person = self.dbstate.db.get_person_from_handle(self.dbstate.active.handle)
                GrampsDb.add_child_to_family(family, child,
                                             RelLib.ChildRef(),
                                             RelLib.ChildRef())
            
    def add_parent_family(self, obj, event, handle):
        if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
            from Editors import EditFamily
            family = RelLib.Family()
            person = self.dbstate.active

            ref = RelLib.ChildRef()
            ref.ref = person.handle
            family.add_child_ref(ref)
                
            try:
                EditFamily(self.dbstate, self.uistate, [], family)
            except Errors.WindowActiveError:
                pass

    def delete_family(self, obj, event, handle):
        if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
            import GrampsDb
            GrampsDb.remove_parent_from_family(self.dbstate.db, 
                                               self.dbstate.active.handle, 
                                               handle)

    def delete_parent_family(self, obj, event, handle):
        if event.type == gtk.gdk.BUTTON_PRESS and event.button == 1:
            import GrampsDb
            GrampsDb.remove_child_from_family(self.dbstate.db, 
                                              self.dbstate.active.handle, 
                                              handle)

    def change_to(self, obj, handle):
        self.dbstate.change_active_handle(handle)