#!/usr/bin/python

import Tkinter
import sys
import ri_tk as display

class GridManagement:
    ''' implement grid management '''
    def __init__(self, xml_node):
        self.cf_list=[]
        for cf in xml_node.childNodes:
            if cf.nodeType != cf.ELEMENT_NODE or cf.nodeName != "configure":
                continue
            if "row" in cf.attributes.keys():
                cf_func = "rowconfigure"
                n = cf.attributes["row"].value
            elif "column" in cf.attributes.keys():
                cf_func = "columnconfigure"
                n = cf.attributes["column"].value
            else:
                continue
            self.cf_list.append((cf_func, n, cf.attributes["weight"].value))

class GridLocation:
    ''' implement grid_location in interface xml '''
    def __init__(self, xml_node):
        self.dict={}
        for a in xml_node.attributes.values():
            self.dict[a.name] = a.value

class Widget:
    ''' implement widget in interface xml '''
    current_widget=""
    dict={}

    def __init__(self, xml_node):
        self.tp   = xml_node.attributes["type"].value
        self.attr = self.widget_attribute(xml_node)
        gm_list = [m for m in xml_node.childNodes 
                   if m.nodeType == m.ELEMENT_NODE and m.nodeName == "grid_management"]
        if gm_list:
            self.grid_management = GridManagement(gm_list[0])

        gl_list = [l for l in xml_node.childNodes 
                   if l.nodeType == l.ELEMENT_NODE and l.nodeName == "grid_location"]
        if gl_list:
            self.grid_location = GridLocation(gl_list[0])

        w_list = [ w for w in xml_node.childNodes 
               if w.nodeType == w.ELEMENT_NODE and w.nodeName == "widget" ]
        if w_list:
            self.widgets=[]
            for w in w_list:
                self.widgets.append(Widget(w))

    def widget_attribute(self, xml_node):
        attr_list = [ a for a in xml_node.childNodes
                      if a.nodeType == a.ELEMENT_NODE and a.nodeName == "widget_attribute"]
        d = {}
        if attr_list:
            for a in attr_list[0].attributes.values():
                if a.name == 'image':
                    #d[a.name] = Tkinter.PhotoImage(file=a.value)
                    pass
                elif a.name == 'command':
                    if not "ri_cmd" in sys.modules.keys():
                        import ri_cmd
                    d[a.name] = getattr(sys.modules["ri_cmd"], a.value)
                else:
                    d[a.name] = a.value
        return d

    def display(self):
        display.display_widget(self)

class Label(Widget):
    ''' Label '''
    def __init__(self, xml_node):
        Widget.__init__(self, xml_node)

class Button(Widget):
    ''' Button '''
    def __init__(self, xml_node):
        Widget.__init__(self, xml_node)

class Frame(Widget):
    ''' Frame '''
    def __init__(self, xml_node):
        Widget.__init__(self, xml_node)

class Entry(Widget):
    ''' Entry '''
    def __init__(self, xml_node):
        Widget.__init__(self, xml_node)

    def display(self):
        display_entry(self)

class Listbox(Widget):
    ''' Listbox '''
    def __init__(self, xml_node):
        Widget.__init__(self, xml_node)
#### need add scroll bar

    def display(self):
        display_listbox(self)

class Radiobutton(Widget):
    ''' Radiobutton '''
    def __init__(self, xml_node):
        Widget.__init__(self, xml_node)
### need add radios

    def display(self):
        display_radiobutton(self)

class MessageBox():
    ''' implement dialog in interface.xml '''
    dict={}

    def __init__(self, xml_node):
        self.name    = xml_node.attributes["name"].value
        self.tp      = xml_node.attributes["type"].value
        self.title   = xml_node.attributes["title"].value
        self.message = xml_node.attributes["message"].value

    def display(self):
        ''' display dialog'''
        display.display_message_box(self)

def construct(xml_root):
    ''' construct Widget's static members'''
    for w in xml_root.childNodes:
        if w.nodeType == w.ELEMENT_NODE and w.nodeName == "widget" and "name" in w.attributes.keys():
            Widget.dict[w.attributes["name"].value] = Widget(w)
        elif w.nodeType == w.ELEMENT_NODE and w.nodeName == "message_box" and "name" in w.attributes.keys():
            MessageBox.dict[w.attributes["name"].value] = MessageBox(w)

def init_display(bw):
    ''' base widget name'''
    base_w = Widget.dict[bw]
    display.initialize(base_w)

def mainloop():
    '''run message main loop '''
    display.root_window.mainloop()