# # Gramps - a GTK+/GNOME based genealogy program # # Copyright (C) 2001 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, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # _PAD = 3 _CANVASPAD = 3 _PERSON = "p" #------------------------------------------------------------------------- # # GTK/Gnome modules # #------------------------------------------------------------------------- import gtk import gtk.gdk import gnome.canvas import pango #------------------------------------------------------------------------- # # Gramps Modules # #------------------------------------------------------------------------- import GrampsCfg from intl import gettext as _ class DispBox: def __init__(self,root,style,x,y,w,h,person,change): shadow = _PAD xpad = _PAD self.change = change self.x = x self.y = y self.w = w self.h = h self.person = person self.root = root self.name = GrampsCfg.nameof(person) self.exp = "%s\nb. %s\nd. %s" % (self.name,person.getBirth().getDate(), person.getDeath().getDate()) self.group = self.root.add(gnome.canvas.CanvasGroup,x=x,y=y) self.shadow = self.group.add(gnome.canvas.CanvasRect, x1=shadow, y1=shadow, x2=w+shadow, y2=h+shadow, outline_color_gdk=style.dark[gtk.STATE_NORMAL], fill_color_gdk=style.dark[gtk.STATE_NORMAL]) # draw the real box self.bkgnd = self.group.add(gnome.canvas.CanvasRect, x1=0, y1=0, x2=w, y2=h, outline_color_gdk=style.bg[gtk.STATE_NORMAL], fill_color_gdk=style.white) font = gtk.gdk.font_from_description(style.font_desc) self.textbox = self.group.add(gnome.canvas.CanvasText, x=xpad, y=h/2.0, text=self.name, fill_color_gdk=style.text[gtk.STATE_NORMAL], font=font, anchor=gtk.ANCHOR_WEST) self.group.connect('event',self.group_event) self.group.set_data('p',person) def cleanup(self): self.shadow.destroy() self.bkgnd.destroy() self.textbox.destroy() self.group.destroy() def group_event(self,obj,event): """Handle events over a drawn box. Doubleclick would edit, shift doubleclick would change the active person, entering the box expands it to display more information, leaving a box returns it to the original size and information""" if event.type == gtk.gdk._2BUTTON_PRESS: return 1 elif event.type == gtk.gdk.ENTER_NOTIFY: self.expand() return 0 elif event.type == gtk.gdk.LEAVE_NOTIFY: self.shrink() return 0 return 0 def expand(self): """Expand a box to include additional information""" self.group.raise_to_top() self.textbox.set(text=self.exp) self.bkgnd.set(y1=-self.h,y2=self.h*2) self.shadow.set(y1=-self.h+_PAD,y2=self.h*2+_PAD) def shrink(self): """Expand a box to include additional information""" self.group.raise_to_top() self.textbox.set(text=self.name) self.bkgnd.set(y1=0,y2=self.h) self.shadow.set(y1=_PAD,y2=self.h+_PAD) #------------------------------------------------------------------------- # # PedigreeView # #------------------------------------------------------------------------- class PedigreeView: def __init__(self,canvas,update,status_bar,change_active,lp): self.canvas = canvas self.canvas_items = [] self.boxes = [] self.root = self.canvas.root() self.active_person = None self.x1 = 0 self.x2 = 0 self.y1 = 0 self.y2 = 0 self.update = update self.sb = status_bar self.change_active_person = change_active self.load_person = lp self.presel_descendants = [] def load_canvas(self, person): """Redraws the pedigree view window, using the passed person as the root person of the tree.""" for i in self.canvas_items: i.destroy() for i in self.boxes: i.cleanup() if person is not self.active_person: del self.presel_descendants[:] self.active_person = person if person == None: return h = 0 w = 0 (x2,y2) = self.canvas.get_size() self.canvas.set_scroll_region(0,0,x2,y2) style = self.canvas.get_style() font = gtk.gdk.font_from_description(style.font_desc) list = [None]*31 self.find_tree(self.active_person,0,1,list) # determine the largest string width and height for calcuation # of box sizes. a = pango.Layout(self.canvas.get_pango_context()) for t in list: if t: for n in [GrampsCfg.nameof(t[0]), "b. %s" % t[0].getBirth().getDate(), "d. %s" % t[0].getDeath().getDate()]: try: a.set_text(n,len(n)) except TypeError: a.set_text(n) (w1,h1) = a.get_pixel_size() h = max(h,h1) w = max(w,w1) cpad = 10 w = w+_PAD cw = x2-(2*cpad)-10-h ch = y2-(2*cpad) if 5*w < cw and 24*h < ch: gen = 31 xdiv = 5.0 elif 4*w < cw and 12*h < ch: gen = 15 xdiv = 4.0 else: gen = 7 xdiv = 3.0 xpts = self.build_x_coords(cw/xdiv,_CANVASPAD+h) ypts = self.build_y_coords((ch-h)/32.0, h) for family in self.active_person.getFamilyList(): if len(family.getChildList()) > 0: button,arrow = self.make_arrow_button(gtk.ARROW_LEFT, self.on_show_child_menu) item = self.root.add(gnome.canvas.CanvasWidget, widget=button, x=_CANVASPAD, y=ypts[0]+(h/2.0), height=h, width=h, size_pixels=1, anchor=gtk.ANCHOR_WEST) self.canvas_items = [item, button, arrow] break else: self.canvas_items = [] if list[1]: p = list[1] self.add_parent_button(p[0],x2-_PAD,ypts[1],h) if list[2]: p = list[2] self.add_parent_button(p[0],x2-_PAD,ypts[2],h) gen_no = len(self.presel_descendants) + 1 for i in range(int(xdiv)): item = self.root.add(gnome.canvas.CanvasText, x=(cw*i/xdiv + cpad), y=h, text=str(gen_no), font=font, anchor=gtk.ANCHOR_WEST) self.canvas_items.append(item) gen_no = gen_no + 1 for i in range(gen): if list[i]: if i < int(gen/2.0): findex = (2*i)+1 mindex = findex+1 if list[findex]: p = list[findex] self.draw_canvas_line(xpts[i], ypts[i], xpts[findex], ypts[findex], h, w, p[0], style, p[1]) if list[mindex]: p = list[mindex] self.draw_canvas_line(xpts[i],ypts[i], xpts[mindex], ypts[mindex], h, w, p[0], style, p[1]) p = list[i] box = DispBox(self.root,style,xpts[i],ypts[i],w,h,p[0], self.change_active_person) self.boxes.append(box) self.change_active_person(person) def make_arrow_button(self,direction,function): """Make a button containing an arrow with the attached callback""" arrow = gtk.Arrow(direction,gtk.SHADOW_NONE) button = gtk.Button() button.add(arrow) button.connect("clicked",function) arrow.show() button.show() return (button, arrow) def on_show_child_menu(self,obj): """User clicked button to move to child of active person""" if self.presel_descendants: # Go to a previously selected child. person = self.presel_descendants.pop(-1) self.active_person = person self.load_canvas(person) elif self.active_person: # Build and display the menu attached to the left pointing arrow # button. The menu consists of the children of the current root # person of the tree. Attach a child to each menu item. myMenu = gtk.Menu() for family in self.active_person.getFamilyList(): for child in family.getChildList(): menuitem = gtk.MenuItem(GrampsCfg.nameof(child)) myMenu.append(menuitem) menuitem.set_data(_PERSON,child) menuitem.connect("activate",self.on_childmenu_changed) menuitem.show() myMenu.popup(None,None,None,0,0) return 1 def on_childmenu_changed(self,obj): """Callback for the pulldown menu selection, changing to the person attached with menu item.""" person = obj.get_data(_PERSON) if person: self.load_canvas(person) return 1 def add_parent_button(self,parent,x,y,h): """Add a button with a right pointing button on the main group at the specified location. Attach the passed parent and the callback to the button.""" button,arrow = self.make_arrow_button(gtk.ARROW_RIGHT,self.change_to_parent) button.set_data(_PERSON,parent) item = self.root.add(gnome.canvas.CanvasWidget, widget=button, x=x, y=y+(h/2), height=h, width=h, size_pixels=1, anchor=gtk.ANCHOR_EAST) self.canvas_items.append(arrow) self.canvas_items.append(item) self.canvas_items.append(button) def change_to_parent(self,obj): """Callback to right pointing arrow button. Gets the person attached to the button and change the root person to that person, redrawing the view.""" person = obj.get_data(_PERSON) if self.active_person: self.presel_descendants.append(self.active_person) self.active_person = person self.load_canvas(person) def draw_canvas_line(self,x1,y1,x2,y2,h,w,data,style,ls): """Draw an two segment line between the x,y point pairs. Attach a event callback and data to the line.""" startx = x1+(w/2.0) pts = [startx,y1, startx,y2+(h/2.0), x2,y2+(h/2.0)] item = self.root.add(gnome.canvas.CanvasLine, width_pixels=2, points=pts, line_style=ls, fill_color_gdk=style.black) item.set_data(_PERSON,data) item.connect("event",self.line_event) self.canvas_items.append(item) def build_x_coords(self,x,cpad): """Build the array of x coordinates for the possible positions on the pedegree view.""" return [cpad] + [x+cpad]*2 + [x*2+cpad]*4 + [x*3+cpad]*8 + [x*4+cpad]*16 def build_y_coords(self, y, top_pad): """Build the array of y coordinates for the possible positions on the pedegree view.""" 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, y*6.0, y*10.0, y*14.0, y*18.0, y*22.0, y*26.0, y*30.0, y, y*3.0, y*5.0, y*7.0, y*9.0, y*11.0, y*13.0, y*15.0, y*17.0, y*19.0, y*21.0, y*23.0, y*25.0, y*27.0, y*29.0, y*31.0 ] return map(lambda coord, top_pad=top_pad: coord + top_pad, res) def line_event(self,obj,event): """Catch X events over a line and respond to the ones we care about""" person = obj.get_data(_PERSON) style = self.canvas.get_style() if event.type == gtk.gdk._2BUTTON_PRESS: if event.button == 1 and event.type == gtk.gdk._2BUTTON_PRESS: self.load_canvas(person) elif event.type == gtk.gdk.ENTER_NOTIFY: obj.set(fill_color_gdk=style.bg[gtk.STATE_SELECTED], width_pixels=4) name = GrampsCfg.nameof(person) msg = _("Double clicking will make %s the active person") % name self.sb.set_status(msg) elif event.type == gtk.gdk.LEAVE_NOTIFY: obj.set(fill_color_gdk=style.black, width_pixels=2) self.update() def find_tree(self,person,index,depth,list,val=0): """Recursively build a list of ancestors""" if depth > 5 or person == None: return (family,m,f) = person.getMainParentsRel() if family: mrel = (m != "Birth") frel = (f != "Birth") list[index] = (person,val) if family != None: father = family.getFather() if father != None: self.find_tree(father,(2*index)+1,depth+1,list,frel) mother = family.getMother() if mother != None: self.find_tree(mother,(2*index)+2,depth+1,list,mrel) def on_canvas1_event(self,obj,event): """Handle resize events over the canvas, redrawing if the size changes""" if event.type == gtk.gdk.EXPOSE: x1,y1,x2,y2 = self.canvas.get_allocation() if self.x1 != x1 or self.x2 != x2 or \ self.y1 != y1 or self.y2 != y2: self.x1 = x1; self.x2 = x2 self.y1 = y1; self.y2 = y2 self.load_canvas(self.active_person) return 0