# timezone_map_gui.py: gui timezone map widget. # # Copyright 2001, 2002, 2003 Red Hat, Inc. # # This software may be freely redistributed under the terms of the GNU # library public license. # # You should have received a copy of the GNU Library Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. # #Originally written by Matt Wilson #Additions by Brent Fox import gobject import pango import gtk import gnome.canvas import string import re import math import zonetab ## ## I18N ## from rhpl.translate import _, N_ import rhpl.translate as translate translate.textdomain ("system-config-date") class Enum: def __init__(self, *args): i = 0 for arg in args: self.__dict__[arg] = i i += 1 class TimezoneMap(gtk.VBox): #force order of destruction for a few items. def __del__(self): del self.arrow del self.markers del self.current def __init__(self, zonetab, default="America/New_York", map='../pixmaps/map480.png'): gtk.VBox.__init__(self, gtk.FALSE, 5) # set up class member objects self.zonetab = zonetab self.markers = {} self.highlightedEntry = None # set up the map canvas self.canvas = gnome.canvas.Canvas() root = self.canvas.root() pixbuf = gtk.gdk.pixbuf_new_from_file(map) self.mapWidth = pixbuf.get_width() self.mapHeight = pixbuf.get_height() root.add(gnome.canvas.CanvasPixbuf, x=0, y=0, pixbuf=pixbuf) x1, y1, x2, y2 = root.get_bounds() self.canvas.set_scroll_region(x1, y1, x2, y2) self.canvas.set_size_request(int(x2), int(y2)) self.pack_start(self.canvas, gtk.FALSE, gtk.FALSE) self.current = root.add(gnome.canvas.CanvasText, text='x', fill_color='red', anchor=gtk.ANCHOR_CENTER, weight=pango.WEIGHT_BOLD) root.connect("event", self.mapEvent) self.canvas.connect("event", self.canvasEvent) self.arrow = root.add(gnome.canvas.CanvasLine, fill_color='limegreen', width_pixels=2, first_arrowhead=gtk.FALSE, last_arrowhead=gtk.TRUE, arrow_shape_a=4.0, arrow_shape_b=8.0, arrow_shape_c=4.0, points=(0.0, 0.0, 0.0, 0.0)) self.arrow.hide() # set up status bar self.status = gtk.Statusbar() self.status.set_has_resize_grip(gtk.FALSE) self.statusContext = self.status.get_context_id("") self.pack_start(self.status, gtk.FALSE, gtk.FALSE) self.columns = Enum("TZ", "COMMENTS", "ENTRY") # set up list of timezones self.listStore = gtk.ListStore(gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_PYOBJECT) self.currentEntry = None self.fallbackEntry = None for entry in zonetab.getEntries(): iter = self.listStore.append() self.listStore.set_value(iter, self.columns.TZ, _(entry.tz)) if entry.comments: self.listStore.set_value(iter, self.columns.COMMENTS, _(entry.comments)) else: self.listStore.set_value(iter, self.columns.COMMENTS, "") self.listStore.set_value(iter, self.columns.ENTRY, entry) x, y = self.map2canvas(entry.lat, entry.long) marker = root.add(gnome.canvas.CanvasText, x=x, y=y, text=u'\u00B7', fill_color='yellow', anchor=gtk.ANCHOR_CENTER, weight=pango.WEIGHT_BOLD) self.markers[entry.tz] = marker if entry.tz == default: self.currentEntry = entry if entry.tz == "America/New_York": #In case the /etc/sysconfig/clock is messed up, use New York as default self.fallbackEntry = entry self.listStore.set_sort_column_id(self.columns.TZ, gtk.SORT_ASCENDING) self.listView = gtk.TreeView(self.listStore) selection = self.listView.get_selection() selection.connect("changed", self.selectionChanged) self.listView.set_property("headers-visible", gtk.FALSE) col = gtk.TreeViewColumn(None, gtk.CellRendererText(), text=0) self.listView.append_column(col) col = gtk.TreeViewColumn(None, gtk.CellRendererText(), text=1) self.listView.append_column(col) sw = gtk.ScrolledWindow () sw.add(self.listView) sw.set_shadow_type(gtk.SHADOW_IN) self.pack_start(sw, gtk.TRUE, gtk.TRUE) self.setCurrent(self.currentEntry) def getCurrent(self): return self.currentEntry def selectionChanged(self, selection, *args): (model, iter) = selection.get_selected() if iter is None: return entry = self.listStore.get_value(iter, self.columns.ENTRY) self.setCurrent(entry, skipList=1) def mapEvent(self, widget, event=None): if event.type == gtk.gdk.MOTION_NOTIFY: x1, y1 = self.canvas.root().w2i(event.x, event.y) lat, long = self.canvas2map(x1, y1) last = self.highlightedEntry self.highlightedEntry = self.zonetab.findNearest(lat, long) if last != self.highlightedEntry: self.status.pop(self.statusContext) status = _(self.highlightedEntry.tz) if self.highlightedEntry.comments: status = "%s - %s" % (status, _(self.highlightedEntry.comments)) self.status.push(self.statusContext, status) x2, y2 = self.map2canvas(self.highlightedEntry.lat, self.highlightedEntry.long) self.arrow.set(points=(x1, y1, x2, y2)) self.arrow.show() elif event.type == gtk.gdk.BUTTON_PRESS: if event.button == 1: self.setCurrent(self.highlightedEntry) def setCurrent(self, entry, skipList=0): if not entry: # If the value in /etc/sysconfig/clock is invalid, default to New York self.currentEntry = self.fallbackEntry else: self.currentEntry = entry self.markers[self.currentEntry.tz].show() self.markers[self.currentEntry.tz].hide() x, y = self.map2canvas(self.currentEntry.lat, self.currentEntry.long) self.current.set(x=x, y=y) if skipList: return iter = self.listStore.get_iter_first() while iter: if self.listStore.get_value(iter, self.columns.ENTRY) == self.currentEntry: selection = self.listView.get_selection() selection.unselect_all() selection.select_iter(iter) path = self.listStore.get_path(iter) col = self.listView.get_column(0) self.listView.set_cursor(path, col, gtk.FALSE) self.listView.scroll_to_cell(path, col, gtk.TRUE, 0.5, 0.5) break iter = self.listStore.iter_next(iter) def canvasEvent(self, widget, event=None): if event.type == gtk.gdk.LEAVE_NOTIFY: self.arrow.hide() def map2canvas(self, lat, long): x2 = self.mapWidth y2 = self.mapHeight x = x2 / 2.0 + (x2 / 2.0) * long / 180.0 y = y2 / 2.0 - (y2 / 2.0) * lat / 90.0 return (x, y) def canvas2map(self, x, y): x2 = self.mapWidth y2 = self.mapHeight long = (x - x2 / 2.0) / (x2 / 2.0) * 180.0 lat = (y2 / 2.0 - y) / (y2 / 2.0) * 90.0 return (lat, long) if __name__ == "__main__": zonetab = zonetab.ZoneTab() win = gtk.Window() win.connect('destroy', gtk.mainquit) map = TimezoneMap(zonetab) vbox = gtk.VBox() vbox.pack_start(map) button = gtk.Button("Quit") button.connect("pressed", gtk.mainquit) vbox.pack_start(button, gtk.FALSE, gtk.FALSE) win.add(vbox, gtk.TRUE) win.show_all() gtk.mainloop()