# Bryan Schumaker (8/13/2010)

import ocarina

libsaria = ocarina.libsaria
gtk      = ocarina.gtk
Label    = gtk.Label

tabs     = None
contents = dict()
cur_page = 0

bottom = None
top    = None


class TabPage(gtk.VBox):
	def __init__(self, content):
		gtk.VBox.__init__(self)
		self.content = content
		self.show()

	def visible(self):
		global bottom
		global top
		if top is not None:
			self.pack_start(top, False, False)
		if self.content is not None:
			self.pack_start(self.content, True, True)
		if bottom is not None:
			self.pack_start(bottom, False, False)
		if hasattr(self.content, "visible"):
			self.content.visible()

	def invisible(self):
		global bottom
		global top
		if top is not None and top.get_parent() is not None:
			self.remove(top)
		if self.content is not None and self.content.get_parent() is not None:
			self.remove(self.content)
		if bottom is not None and bottom.get_parent() is not None:
			self.remove(bottom)
		if hasattr(self.content, "invisible"):
			self.content.invisible()


def init():
	import info
	global bottom
	global top
	info.init()
	bottom = info.get_info()
	top    = info.get_filter()
	global tabs
	tabs = gtk.Notebook()
	tabs.set_tab_pos(gtk.POS_LEFT)
	tabs.connect("switch-page", switch_page)
	tabs.show()

def append_page(content, text):
	global Label
	global contents
	global tabs
	label = Label(text)
	label.set_angle(90)
	page = TabPage(content)
	contents[text] = page
	tabs.append_page(page, label)
	tabs.set_tab_label_packing(page, True, True, gtk.PACK_START)

def remove_page(text):
	global contents
	global tabs
	page = contents.get(text, None)
	if page == None:
		return
	n = tabs.page_num(page)
	if n > 0:
		tabs.remove_page( n)
	del contents[text]

def switch_page(notebook, page, page_num):
	global cur_page
	old = notebook.get_nth_page(cur_page)
	new = notebook.get_nth_page(page_num)
	old.invisible()
	new.visible()
	cur_page = page_num