#!/usr/bin/python

import sys

import pygtk
pygtk.require('2.0')
import gtk
import gtk.gdk
import gtk.glade
import gnome
import gnome.ui
import scipy
import pango
from system import project, workflow, dataset, logger, plots, navigator, dialogs


PROGRAM_NAME = 'fluent'
VERSION = '0.1.0'
GLADEFILENAME = 'system/fluent.glade'

class FluentApp:

    def __init__(self, wf):
        # Application variables
        self.project = None
        self.current_data = None
        self._last_view = None
        self._plot_toolbar = None
        
        gtk.glade.set_custom_handler(self.custom_object_factory)
        self.widget_tree = gtk.glade.XML(GLADEFILENAME, 'appwindow')
        self.workflow = wf(self)

    def set_project(self, project):
        logger.log('notice', 'Creating a new project')
        self.project = project
        self.workflow.add_project(self.project)
        self.navigator_view.add_project(self.project)

    def set_workflow(self, workflow):
        self.workflow = workflow
        self.wf_menu.set_workflow(self.workflow)

    def custom_object_factory(self, glade, function_name, widget_name,\
                              str1, str2, int1, int2):
        handler = getattr(self, function_name)
        return handler(str1, str2, int1, int2)
        
    def create_logview(self, str1, str2, int1, int2):
        # Set up log view
        self.log_view = logger.LogView(logger.logger)
#        self.log_view.set_level('notice')
        self.log_view.show()
        return self.log_view

    def create_main_view(self, str1, str2, int1, int2):
        self.main_view = plots.MainView(self._update_toolbar)
        self.main_view.show()
        return self.main_view

    def _update_toolbar(self, view):
        logger.log("debug", "view changed to %s" % view)
        # don't do anything on no change
        if self._last_view == view:
            return
        self._last_view = view
        
        window = self.widget_tree.get_widget('plot_toolbar_dock')
        if self._plot_toolbar:
            window.remove(self._plot_toolbar)
            
        self._plot_toolbar = view.get_toolbar()
        if self._plot_toolbar:
            window.add(self._plot_toolbar)

    def create_small_view(self, str1, str2, int1, int2):
        self.small_view = plots.SmallView()
        self.small_view.show()
        return self.small_view

    def create_large_view(self, str1, str2, int1, int2,project):
        self.large_view = plots.LargeView()
        self.large_view.show()
        return self.large_view

    def create_navigator_view(self, str1, str2, int1, int2):
        # tree = self.project.data_tree
        self.navigator_view = navigator.NavigatorView(None, self)
        self.navigator_view.show()
        return self.navigator_view

    def show(self):
        self.init_gui()

    def init_gui(self):
        self['appwindow'].set_size_request(800, 600)

        # Set up workflow
        self.wf_menu = workflow.WorkflowView(self.workflow)
        self.wf_menu.show()
        self['workflow_vbox'].pack_end(self.wf_menu)

        # Set up plot toolbar
#        self['plot_toolbar_dock'].add(plot.get_toolbar(self.app))

        # Connect signals
        signals = {'on_quit1_activate' : (gtk.main_quit),
                   'on_appwindow_delete_event' : (gtk.main_quit),
                   'on_zoom_in_button_clicked' : (self.on_single_view),
                   'on_zoom_out_button_clicked' : (self.on_multiple_view),
                   'on_new1_activate' : (self.on_create_project),
                   'on_button_new_clicked' : (self.on_create_project),
                   'on_workflow_refresh_clicked' : (self.on_workflow_refresh_clicked),
                   'on_about1_activate' : (self.on_help_about)}
        self.widget_tree.signal_autoconnect(signals)

        # Log that we've set up the app now
        logger.log('debug', 'Program started')

    def change_plot(self, plot):
        pt = self.widget_tree.get_widget('main_view')
        pt.insert_view(plot)
        
    def on_single_view(self, button):
        nb = self.widget_tree.get_widget('main_view')
        nb.goto_large()

    def on_multiple_view(self, button):
        nb = self.widget_tree.get_widget('main_view')
        nb.goto_small()

    def __getitem__(self, key):
        return self.widget_tree.get_widget(key)

    def on_create_project(self, *rest):
        d = dialogs.CreateProjectDruid(self)
        d.run()
        
    def on_help_about(self, *rest):
        widget_tree = gtk.glade.XML(GLADEFILENAME, 'aboutdialog')
        about = widget_tree.get_widget('aboutdialog')
        about.run()

    def on_workflow_refresh_clicked(self, *ignored):
        try:
            reload(sys.modules[self.workflow.__class__.__module__])
        except Exception, e:
            logger.log('warning', 'Cannot reload workflow')
            logger.log('warning', e)
        else:
            logger.log('notice', 'Successfully reloaded workflow')