#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2006  Donald N. Allingham
#
# 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, see <https://www.gnu.org/licenses/>.
#

__all__ = ["LinkLabel", "EditLabel", "BasicLabel", "MarkupLabel", "DualMarkupLabel"]

# -------------------------------------------------------------------------
#
# Standard python modules
#
# -------------------------------------------------------------------------
import os
from html import escape
from gramps.gen.const import GRAMPS_LOCALE as glocale

_ = glocale.translation.gettext
import logging

_LOG = logging.getLogger(".widgets.labels")

# -------------------------------------------------------------------------
#
# GTK/Gnome modules
#
# -------------------------------------------------------------------------
from gi.repository import Gdk
from gi.repository import Gtk
from gi.repository import Pango

# -------------------------------------------------------------------------
#
# Gramps modules
#
# -------------------------------------------------------------------------
from gramps.gen.constfunc import has_display, win
from ..utils import get_link_color

# -------------------------------------------------------------------------
#
# Constants
#
# -------------------------------------------------------------------------
if has_display():
    HAND_CURSOR = Gdk.Cursor.new_for_display(
        Gdk.Display.get_default(), Gdk.CursorType.HAND2
    )


# -------------------------------------------------------------------------
#
# Module functions
#
# -------------------------------------------------------------------------
def realize_cb(widget):
    widget.get_window().set_cursor(HAND_CURSOR)


# -------------------------------------------------------------------------
#
# LinkLabel class
#
# -------------------------------------------------------------------------
class LinkLabel(Gtk.EventBox):
    def __init__(self, label, func, handle, emph=False, theme="CLASSIC"):
        self.theme = theme
        self.emph = emph

        Gtk.EventBox.__init__(self)

        st_cont = self.get_style_context()
        self.color = get_link_color(st_cont)

        if emph:
            # emphasize a link
            if theme == "CLASSIC":
                format = 'underline="single" weight="heavy" style="italic"'
            elif theme == "WEBPAGE":
                format = 'foreground="' + self.color + '" weight="heavy"'
            else:
                raise AttributeError("invalid theme: '%s'" % theme)
        elif emph is None:
            # emphasize, but not a link
            if theme == "CLASSIC":
                format = 'weight="heavy"'
            elif theme == "WEBPAGE":
                format = 'weight="heavy"'
            else:
                raise AttributeError("invalid theme: '%s'" % theme)
        else:
            # no emphasize, a link
            if theme == "CLASSIC":
                format = 'underline="single"'
            elif theme == "WEBPAGE":
                format = 'foreground="' + self.color + '"'
            else:
                raise AttributeError("invalid theme: '%s'" % theme)

        self.orig_text = escape(label[0])
        self.gender = label[1]
        self.decoration = format
        text = "<span %s>%s</span>" % (self.decoration, self.orig_text)

        if func:
            msg = _(
                "Click to make this person active\n"
                "Right click to display the edit menu\n"
                "Click Edit icon (enable in configuration dialog) to edit"
            )

            self.set_tooltip_text(msg)

        self.label = Gtk.Label(label=text)
        self.label.set_use_markup(True)
        self.label.set_halign(Gtk.Align.START)

        hbox = Gtk.Box()
        hbox.pack_start(self.label, False, False, 0)
        if label[1]:
            hbox.pack_start(Gtk.Label(label=label[1]), False, False, 0)
            hbox.set_spacing(4)
        self.add(hbox)

        if func:
            self.connect("button-press-event", func, handle)
            self.connect("enter-notify-event", self.enter_text, handle)
            self.connect("leave-notify-event", self.leave_text, handle)
            self.connect("realize", realize_cb)

    def set_padding(self, x, y):
        self.label.set_margin_start(x)
        self.label.set_margin_end(x)
        self.label.set_margin_top(x)
        self.label.set_margin_bottom(x)

    def enter_text(self, obj, event, handle):
        if self.emph:
            # emphasize a link
            if self.theme == "CLASSIC":
                format = (
                    'foreground="' + self.color + '" underline="single" '
                    'weight="heavy" style="italic"'
                )
            elif self.theme == "WEBPAGE":
                format = (
                    'underline="single" foreground="' + self.color + '" '
                    'weight="heavy"'
                )
            else:
                raise AttributeError("invalid theme: '%s'" % self.theme)
        elif self.emph is None:
            # no link, no change on enter_text
            if self.theme == "CLASSIC":
                format = 'weight="heavy"'
            elif self.theme == "WEBPAGE":
                format = 'weight="heavy"'
            else:
                raise AttributeError("invalid theme: '%s'" % self.theme)
        else:
            # no emphasize, a link
            if self.theme == "CLASSIC":
                format = 'foreground="' + self.color + '" underline="single"'
            elif self.theme == "WEBPAGE":
                format = 'underline="single" foreground="' + self.color + '"'
            else:
                raise AttributeError("invalid theme: '%s'" % self.theme)

        text = "<span %s>%s</span>" % (format, self.orig_text)
        self.label.set_text(text)
        self.label.set_use_markup(True)

    def leave_text(self, obj, event, handle):
        text = "<span %s>%s</span>" % (self.decoration, self.orig_text)
        self.label.set_text(text)
        self.label.set_use_markup(True)


# -------------------------------------------------------------------------
#
# EditLabel class
#
# -------------------------------------------------------------------------
class EditLabel(Gtk.Box):
    def __init__(self, text):
        Gtk.Box.__init__(self)
        label = BasicLabel(text)
        self.pack_start(label, False, True, 0)
        self.pack_start(
            Gtk.Image.new_from_icon_name("gtk-edit", Gtk.IconSize.MENU), False
        )
        self.set_spacing(4)
        self.show_all()


# -------------------------------------------------------------------------
#
# BasicLabel class
#
# -------------------------------------------------------------------------
class BasicLabel(Gtk.Label):
    def __init__(self, text, ellipsize=Pango.EllipsizeMode.NONE):
        Gtk.Label.__init__(self, label=text)
        self.set_halign(Gtk.Align.START)
        self.set_ellipsize(ellipsize)
        self.show()


# -------------------------------------------------------------------------
#
# MarkupLabel class
#
# -------------------------------------------------------------------------
class MarkupLabel(Gtk.Label):
    def __init__(self, text, halign=Gtk.Align.START):
        Gtk.Label.__init__(self, label=text)
        self.set_halign(halign)
        self.set_use_markup(True)
        self.show_all()


# -------------------------------------------------------------------------
#
# DualMarkupLabel class
#
# -------------------------------------------------------------------------
class DualMarkupLabel(Gtk.Box):
    def __init__(self, text, alt, halign=Gtk.Align.START):
        Gtk.Box.__init__(self)
        label = Gtk.Label(label=text)
        label.set_halign(halign)
        label.set_use_markup(True)

        self.pack_start(label, False, False, 0)
        b = Gtk.Label(label=alt)
        self.pack_start(b, False, False, 4)
        self.show()
