405 lines
15 KiB
Python
405 lines
15 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2001 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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_PAD = 3
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_CANVASPAD = 3
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_PERSON = "p"
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#-------------------------------------------------------------------------
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#
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# GTK/Gnome modules
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#
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#-------------------------------------------------------------------------
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import gtk
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import gtk.gdk
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import gnome.canvas
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import pango
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#-------------------------------------------------------------------------
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#
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# Gramps Modules
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#
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#-------------------------------------------------------------------------
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import GrampsCfg
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from intl import gettext as _
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class DispBox:
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def __init__(self,root,style,x,y,w,h,person,change):
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shadow = _PAD
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xpad = _PAD
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self.change = change
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self.x = x
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self.y = y
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self.w = w
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self.h = h
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self.person = person
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self.root = root
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self.name = GrampsCfg.nameof(person)
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self.exp = "%s\nb. %s\nd. %s" % (self.name,person.getBirth().getDate(),
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person.getDeath().getDate())
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self.group = self.root.add(gnome.canvas.CanvasGroup,x=x,y=y)
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self.shadow = self.group.add(gnome.canvas.CanvasRect,
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x1=shadow,
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y1=shadow,
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x2=w+shadow,
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y2=h+shadow,
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outline_color_gdk=style.dark[gtk.STATE_NORMAL],
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fill_color_gdk=style.dark[gtk.STATE_NORMAL])
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# draw the real box
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self.bkgnd = self.group.add(gnome.canvas.CanvasRect,
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x1=0,
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y1=0,
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x2=w,
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y2=h,
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outline_color_gdk=style.bg[gtk.STATE_NORMAL],
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fill_color_gdk=style.white)
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font = gtk.gdk.font_from_description(style.font_desc)
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self.textbox = self.group.add(gnome.canvas.CanvasText,
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x=xpad,
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y=h/2.0,
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text=self.name,
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fill_color_gdk=style.text[gtk.STATE_NORMAL],
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font=font, anchor=gtk.ANCHOR_WEST)
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self.group.connect('event',self.group_event)
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self.group.set_data('p',person)
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def cleanup(self):
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self.shadow.destroy()
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self.bkgnd.destroy()
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self.textbox.destroy()
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self.group.destroy()
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return
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def group_event(self,obj,event):
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"""Handle events over a drawn box. Doubleclick would edit,
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shift doubleclick would change the active person, entering
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the box expands it to display more information, leaving a
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box returns it to the original size and information"""
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if event.type == gtk.gdk._2BUTTON_PRESS:
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return 1
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elif event.type == gtk.gdk.ENTER_NOTIFY:
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self.expand()
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return 0
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elif event.type == gtk.gdk.LEAVE_NOTIFY:
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self.shrink()
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return 0
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return 0
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def expand(self):
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"""Expand a box to include additional information"""
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self.textbox.set(text=self.exp)
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self.bkgnd.set(y1=-self.h,y2=self.h*2)
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self.shadow.set(y1=-self.h+_PAD,y2=self.h*2+_PAD)
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def shrink(self):
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"""Expand a box to include additional information"""
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self.textbox.set(text=self.name)
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self.bkgnd.set(y1=0,y2=self.h)
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self.shadow.set(y1=_PAD,y2=self.h+_PAD)
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#-------------------------------------------------------------------------
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#
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# PedigreeView
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#
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#-------------------------------------------------------------------------
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class PedigreeView:
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def __init__(self,canvas,update,status_bar,change_active,lp):
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self.canvas = canvas
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self.canvas_items = []
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self.boxes = []
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self.root = self.canvas.root()
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self.active_person = None
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self.x1 = 0
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self.x2 = 0
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self.y1 = 0
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self.y2 = 0
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self.update = update
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self.sb = status_bar
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self.change_active_person = change_active
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self.load_person = lp
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self.presel_descendants = []
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def clear(self):
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for i in self.canvas_items:
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i.destroy()
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for i in self.boxes:
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i.cleanup()
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def load_canvas(self, person):
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"""Redraws the pedigree view window, using the passed person
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as the root person of the tree."""
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self.clear()
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if person is not self.active_person:
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del self.presel_descendants[:]
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self.active_person = person
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if person == None:
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return
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h = 0
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w = 0
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(x2,y2) = self.canvas.get_size()
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self.canvas.set_scroll_region(0,0,x2,y2)
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style = self.canvas.get_style()
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font = gtk.gdk.font_from_description(style.font_desc)
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list = [None]*31
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self.find_tree(self.active_person,0,1,list)
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# determine the largest string width and height for calcuation
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# of box sizes.
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a = pango.Layout(self.canvas.get_pango_context())
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for t in list:
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if t:
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for n in [GrampsCfg.nameof(t[0]),
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u'b. %s' % t[0].getBirth().getDate(),
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u'd. %s' % t[0].getDeath().getDate()]:
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try:
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a.set_text(n,len(n))
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except TypeError:
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a.set_text(n)
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(w1,h1) = a.get_pixel_size()
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h = max(h,h1)
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w = max(w,w1)
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cpad = 10
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w = w+_PAD
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cw = x2-(2*cpad)-10-h
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ch = y2-(2*cpad)
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if 5*w < cw and 24*h < ch:
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gen = 31
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xdiv = 5.0
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elif 4*w < cw and 12*h < ch:
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gen = 15
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xdiv = 4.0
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else:
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gen = 7
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xdiv = 3.0
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xpts = self.build_x_coords(cw/xdiv,_CANVASPAD+h)
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ypts = self.build_y_coords((ch-h)/32.0, h)
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for family in self.active_person.getFamilyList():
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if len(family.getChildList()) > 0:
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button,arrow = self.make_arrow_button(gtk.ARROW_LEFT,
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self.on_show_child_menu)
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item = self.root.add(gnome.canvas.CanvasWidget, widget=button,
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x=_CANVASPAD, y=ypts[0]+(h/2.0),
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height=h, width=h,
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size_pixels=1, anchor=gtk.ANCHOR_WEST)
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self.canvas_items = [item, button, arrow]
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break
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else:
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self.canvas_items = []
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if list[1]:
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p = list[1]
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self.add_parent_button(p[0],x2-_PAD,ypts[1],h)
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if list[2]:
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p = list[2]
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self.add_parent_button(p[0],x2-_PAD,ypts[2],h)
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gen_no = len(self.presel_descendants) + 1
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for i in range(int(xdiv)):
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item = self.root.add(gnome.canvas.CanvasText, x=(cw*i/xdiv + cpad), y=h,
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text=str(gen_no),
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font=font,
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anchor=gtk.ANCHOR_WEST)
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self.canvas_items.append(item)
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gen_no = gen_no + 1
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for i in range(gen):
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if list[i]:
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if i < int(gen/2.0):
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findex = (2*i)+1
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mindex = findex+1
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if list[findex]:
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p = list[findex]
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self.draw_canvas_line(xpts[i], ypts[i], xpts[findex],
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ypts[findex], h, w, p[0], style, p[1])
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if list[mindex]:
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p = list[mindex]
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self.draw_canvas_line(xpts[i],ypts[i], xpts[mindex],
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ypts[mindex], h, w, p[0], style, p[1])
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p = list[i]
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box = DispBox(self.root,style,xpts[i],ypts[i],w,h,p[0],
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self.change_active_person)
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self.boxes.append(box)
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self.change_active_person(person)
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def make_arrow_button(self,direction,function):
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"""Make a button containing an arrow with the attached callback"""
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arrow = gtk.Arrow(direction,gtk.SHADOW_NONE)
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button = gtk.Button()
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button.add(arrow)
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button.connect("clicked",function)
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arrow.show()
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button.show()
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return (button, arrow)
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def on_show_child_menu(self,obj):
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"""User clicked button to move to child of active person"""
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if self.presel_descendants:
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# Go to a previously selected child.
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person = self.presel_descendants.pop(-1)
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self.active_person = person
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self.load_canvas(person)
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elif self.active_person:
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# Build and display the menu attached to the left pointing arrow
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# button. The menu consists of the children of the current root
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# person of the tree. Attach a child to each menu item.
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myMenu = gtk.Menu()
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for family in self.active_person.getFamilyList():
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for child in family.getChildList():
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menuitem = gtk.MenuItem(GrampsCfg.nameof(child))
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myMenu.append(menuitem)
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menuitem.set_data(_PERSON,child)
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menuitem.connect("activate",self.on_childmenu_changed)
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menuitem.show()
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myMenu.popup(None,None,None,0,0)
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return 1
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def on_childmenu_changed(self,obj):
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"""Callback for the pulldown menu selection, changing to the person
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attached with menu item."""
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person = obj.get_data(_PERSON)
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if person:
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self.load_canvas(person)
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return 1
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def add_parent_button(self,parent,x,y,h):
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"""Add a button with a right pointing button on the main group at
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the specified location. Attach the passed parent and the callback
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to the button."""
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button,arrow = self.make_arrow_button(gtk.ARROW_RIGHT,self.change_to_parent)
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button.set_data(_PERSON,parent)
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item = self.root.add(gnome.canvas.CanvasWidget, widget=button, x=x, y=y+(h/2),
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height=h, width=h, size_pixels=1,
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anchor=gtk.ANCHOR_EAST)
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self.canvas_items.append(arrow)
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self.canvas_items.append(item)
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self.canvas_items.append(button)
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def change_to_parent(self,obj):
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"""Callback to right pointing arrow button. Gets the person
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attached to the button and change the root person to that
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person, redrawing the view."""
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person = obj.get_data(_PERSON)
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if self.active_person:
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self.presel_descendants.append(self.active_person)
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self.active_person = person
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self.load_canvas(person)
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def draw_canvas_line(self,x1,y1,x2,y2,h,w,data,style,ls):
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"""Draw an two segment line between the x,y point pairs. Attach
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a event callback and data to the line."""
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startx = x1+(w/2.0)
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pts = [startx,y1, startx,y2+(h/2.0), x2,y2+(h/2.0)]
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item = self.root.add(gnome.canvas.CanvasLine, width_pixels=2,
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points=pts, line_style=ls,
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fill_color_gdk=style.black)
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item.set_data(_PERSON,data)
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item.connect("event",self.line_event)
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self.canvas_items.append(item)
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def build_x_coords(self,x,cpad):
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"""Build the array of x coordinates for the possible positions
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on the pedegree view."""
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return [cpad] + [x+cpad]*2 + [x*2+cpad]*4 + [x*3+cpad]*8 + [x*4+cpad]*16
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def build_y_coords(self, y, top_pad):
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"""Build the array of y coordinates for the possible positions
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on the pedegree view."""
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res = [ y*16.0, y*8.0, y*24.0, y*4.0, y*12.0, y*20.0, y*28.0, y*2.0,
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y*6.0, y*10.0, y*14.0, y*18.0, y*22.0, y*26.0, y*30.0, y,
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y*3.0, y*5.0, y*7.0, y*9.0, y*11.0, y*13.0, y*15.0, y*17.0,
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y*19.0, y*21.0, y*23.0, y*25.0, y*27.0, y*29.0, y*31.0 ]
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return map(lambda coord, top_pad=top_pad: coord + top_pad, res)
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def line_event(self,obj,event):
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"""Catch X events over a line and respond to the ones we care about"""
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person = obj.get_data(_PERSON)
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style = self.canvas.get_style()
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if event.type == gtk.gdk._2BUTTON_PRESS:
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if event.button == 1 and event.type == gtk.gdk._2BUTTON_PRESS:
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self.load_canvas(person)
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elif event.type == gtk.gdk.ENTER_NOTIFY:
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obj.set(fill_color_gdk=style.bg[gtk.STATE_SELECTED],
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width_pixels=4)
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name = GrampsCfg.nameof(person)
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msg = _("Double clicking will make %s the active person") % name
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self.sb.set_status(msg)
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elif event.type == gtk.gdk.LEAVE_NOTIFY:
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obj.set(fill_color_gdk=style.black, width_pixels=2)
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self.update()
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def find_tree(self,person,index,depth,list,val=0):
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"""Recursively build a list of ancestors"""
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if depth > 5 or person == None:
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return
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(family,m,f) = person.getMainParentsRel()
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if family:
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mrel = (m != "Birth")
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frel = (f != "Birth")
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list[index] = (person,val)
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if family != None:
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father = family.getFather()
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if father != None:
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self.find_tree(father,(2*index)+1,depth+1,list,frel)
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mother = family.getMother()
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if mother != None:
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self.find_tree(mother,(2*index)+2,depth+1,list,mrel)
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def on_canvas1_event(self,obj,event):
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"""Handle resize events over the canvas, redrawing if the size changes"""
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if event.type == gtk.gdk.EXPOSE:
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x1,y1,x2,y2 = self.canvas.get_allocation()
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if self.x1 != x1 or self.x2 != x2 or \
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self.y1 != y1 or self.y2 != y2:
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self.x1 = x1; self.x2 = x2
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self.y1 = y1; self.y2 = y2
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self.load_canvas(self.active_person)
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return 0
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