# coding: utf-8
# ###################################################
# Copyright (C) 2008 The Zero-Projekt team
# http://zero-projekt.net
# info@zero-projekt.net
# This file is part of Zero "Was vom Morgen blieb"
#
# The Zero-Projekt codebase 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.,
# 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
# ###################################################

""" a tool for FIFEdit to edit object and instance attributes """

import fife
import pychan
import pychan.widgets as widgets
from pychan.tools import callbackWithArguments as cbwa

from fife_timer import Timer

import scripts
import scripts.plugin as plugin
from scripts.events import *
from scripts.gui.action import Action


import os
try:
	import xml.etree.cElementTree as ET
except:
	import xml.etree.ElementTree as ET

import math


class CameraEdit(plugin.Plugin):

	def __init__(self):
		self._enabled = False
		
		# Camera instance
		self._camera = None
		
		# Editor instance
		self._editor = None
		
		# Toolbar button to display Camera Editor
		self._action_show = None
		
		# GUI
		self._container = None
		self._ok_button = None
		self._cancel_button = None

	def enable(self):
		""" plugin method """
		if self._enabled is True:
			return
		
		self._editor = scripts.editor.getEditor()
		#self._camera = self._editor.getActiveMapView().getCamera()
		self._action_show = Action(u"Camera Editor", checkable=True)
		scripts.gui.action.activated.connect(self.toggle, sender=self._action_show)
		self._editor._tools_menu.addAction(self._action_show)
		
		self._createGui()
		
		self._enabled = True

	def disable(self):
		""" plugin method """
		if self._enabled is False:
			return
			
		self._container.setDocked(False)
		self._container.hide()
		
		self._editor._tools_menu.removeAction(self._action_show)
		
		self._enabled = False
			

	def isEnabled(self):
		""" plugin method """
		return self._enabled;

	def getName(self):
		""" plugin method """
		return "Camera Editor"
		
	def toggle(self):
		"""	Toggles the cameratool visible / invisible and sets
			dock status 
		"""
		if self._container.isVisible() or self._container.isDocked():
			self._container.setDocked(False)
			self._container.hide()

			self._action_show.setChecked(False)
		else:
			self._container.show()
			self.loadSettings()
			self._action_show.setChecked(True)
			self._adjustPosition()
	
	def saveSettings(self):
		engine = self._editor.getEngine()
	
		id = self._container.collectData('idBox')
		if id == '':
			print 'Please enter a camera id.'
			return
	
		try:
			map = engine.getModel().getMap(str(self._container.collectData('mapBox')))
		except fife.Exception:
			print 'Cannot find the specified map id.'
			return
	
		try:
			layer = map.getLayer(str(self._container.collectData('layerBox')))
		except fife.Exception:
			print 'Cannot find the specified layer id.'	
			return
	
		try:
			vals = self._container.collectData('viewBox').split(',')
			if len(vals) != 4:
				raise ValueError	
	
			viewport = fife.Rect(*[int(c) for c in vals])
		except ValueError:
			print 'Please enter 4 comma (,) delimited values for viewport x,y,width,height.'
			return
	
		try:
			refh = int(self._container.collectData('refhBox'))
			refw = int(self._container.collectData('refwBox'))
		except ValueError:
			print 'Please enter positive integer values for reference width and height.'
			return
	
		try:
			rot = int(self._container.collectData('rotBox'))
			tilt = int(self._container.collectData('tiltBox'))
		except ValueError:
			print 'Please enter positive integer values for rotation and tilt.'
			return
	
		self._camera = self._editor.getActiveMapView().getCamera()
		self._camera.setId(str(id))
		self._camera.getLocation().setLayer(layer)
		self._camera.setViewPort(viewport)
		self._camera.setCellImageDimensions(refw, refh)
		self._camera.setRotation(rot)
		self._camera.setTilt(tilt)
		
		self.toggle()

	def loadSettings(self):
		if self._editor.getActiveMapView() is None:
			return
		else:
			self._camera = self._editor.getActiveMapView().getCamera()
			
			map = self._editor.getActiveMapView().getMap().getId()
			self._container.findChild(name="mapBox").text = unicode(str(map))
			
			layer = self._camera.getLocation().getLayer().getId()
			self._container.findChild(name="layerBox").text = unicode(layer)
			
			vp = self._camera.getViewPort()
			viewport_str = unicode(str(vp.x) + "," + str(vp.y) + "," + str(vp.w) + "," + str(vp.h))
			self._container.findChild(name="viewBox").text = viewport_str
			
			ref = self._camera.getCellImageDimensions()
			refw_str = unicode(str(ref.x))
			refh_str = unicode(str(ref.y))
			self._container.findChild(name="refhBox").text = refh_str
			self._container.findChild(name="refwBox").text = refw_str
			
			self._container.findChild(name="idBox").text = unicode(str(self._camera.getId()))
			self._container.findChild(name="rotBox").text = unicode(str(int(self._camera.getRotation())))
			self._container.findChild(name="tiltBox").text = unicode(str(int(self._camera.getTilt())))

	def _createGui(self):
		""" Create the basic gui container """
		self._container =  pychan.loadXML('gui/cameradialog.xml')
		
		self._container.findChild(name="mapLabel").hide()
		self._container.findChild(name="mapBox").hide()
		
		self._ok_button = self._container.findChild(name="okButton")
		self._cancel_button = self._container.findChild(name="cancelButton")
		
		self._ok_button.capture(self.saveSettings)
		self._ok_button.capture(cbwa(self._editor.getStatusBar().showTooltip, unicode("Save changes to the camera")), 'mouseEntered')
		self._ok_button.capture(self._editor.getStatusBar().hideTooltip, 'mouseExited')

		self._cancel_button.capture(self.toggle)
		self._cancel_button.capture(cbwa(self._editor.getStatusBar().showTooltip, unicode("Discard any changes to the camera")), 'mouseEntered')
		self._cancel_button.capture(self._editor.getStatusBar().hideTooltip, 'mouseExited')

		
	def _adjustPosition(self):
		"""	Adjusts the position of the container - we don't want to
		let the window appear at the center of the screen.
		(new default position: left, beneath the tools window)
		"""
		self._container.position = (50, 200)