#TODO: the line slicer should listen to all 2DREFRESH events, get the data and slice it
#      before pushing a new 1D data update.

#
#TODO: NEED MAJOR REFACTOR
#


# Debug printout
import math
import wx
from copy import deepcopy
from BaseInteractor import _BaseInteractor
from sans.guiframe.events import NewPlotEvent
from sans.guiframe.events import StatusEvent
from sans.guiframe.events import SlicerParameterEvent
from sans.guiframe.events import EVT_SLICER_PARS


class SectorInteractor(_BaseInteractor):
    """
    Select an annulus through a 2D plot
    """
    def __init__(self, base, axes, color='black', zorder=3):
        """
        """
        _BaseInteractor.__init__(self, base, axes, color=color)
        self.markers = []
        self.axes = axes
        self.qmax = self.base.data2D.xmax
        self.connect = self.base.connect
        
        ## Number of points on the plot
        self.nbins = 20
        theta1 = math.pi/8
        theta2 = math.pi/2
        theta1 = 2 * math.pi/3
        theta2 = -2 * math.pi/3
        r1 = self.qmax/2.0
        r2 = self.qmax/1.8
       
        # Inner circle
        from Arc import ArcInteractor
        self.inner_circle = ArcInteractor(self, self.base.subplot,
                                           zorder=zorder,
                                           r=self.qmax/2.0,
                                           theta1=theta1,
                                           theta2=theta2)
        self.inner_circle.qmax = self.qmax
        self.outer_circle = ArcInteractor(self, self.base.subplot,
                                          zorder=zorder+1,
                                          r=self.qmax/1.8,
                                          theta1=theta1,
                                           theta2=theta2)
        self.outer_circle.qmax = self.qmax * 1.2
        #self.outer_circle.set_cursor(self.base.qmax/1.8, 0)
        from Edge import RadiusInteractor
        self.right_edge= RadiusInteractor(self, self.base.subplot,
                                          zorder=zorder+1,
                                             arc1=self.inner_circle,
                                             arc2=self.outer_circle,
                                            theta=theta1)
        self.left_edge= RadiusInteractor(self, self.base.subplot,
                                         zorder=zorder+1,
                                             arc1=self.inner_circle,
                                             arc2=self.outer_circle,
                                            theta=theta2)
        self.update()
        self._post_data()
        # Bind to slice parameter events
        self.base.parent.Bind(EVT_SLICER_PARS, self._onEVT_SLICER_PARS)

    def _onEVT_SLICER_PARS(self, event):
        """
        """
        #printEVT("AnnulusSlicer._onEVT_SLICER_PARS")
        event.Skip()
        if event.type == self.__class__.__name__:
            self.set_params(event.params)
            self.base.update()

    def save_data(self, path, image, x, y):
        """
        """
        output = open(path, 'w')
        data_x, data_y = self.get_data(image, x, y)
        
        output.write("<phi>  <average>\n")
        for i in range(len(data_x)):
            output.write("%g  %g\n" % (data_x[i], data_y[i]))
        output.close()

    def set_layer(self, n):
        """
        """
        self.layernum = n
        self.update()
        
    def clear(self):
        """
        """
        self.clear_markers()
        self.outer_circle.clear()
        self.inner_circle.clear()
        self.right_edge.clear()
        self.left_edge.clear()
        #self.base.connect.disconnect()
        self.base.parent.Unbind(EVT_SLICER_PARS)
        
    def update(self):
        """
        Respond to changes in the model by recalculating the profiles and
        resetting the widgets.
        """
        # Update locations   
        if self.inner_circle.has_move:    
            #print "inner circle has moved" 
            self.inner_circle.update()
            r1 = self.inner_circle.get_radius()
            r2 = self.outer_circle.get_radius()
            self.right_edge.update(r1, r2)
            self.left_edge.update(r1, r2)
        if self.outer_circle.has_move:    
            #print "outer circle has moved" 
            self.outer_circle.update()
            r1 = self.inner_circle.get_radius()
            r2 = self.outer_circle.get_radius()
            self.left_edge.update(r1, r2)
            self.right_edge.update(r1, r2)
        if self.right_edge.has_move:
            #print "right edge has moved"
            self.right_edge.update()
            self.inner_circle.update(theta1=self.right_edge.get_angle(),
                                     theta2=None)
            self.outer_circle.update(theta1=self.right_edge.get_angle(),
                                     theta2=None)
        if  self.left_edge.has_move:
            #print "left Edge has moved"
            self.left_edge.update()
            self.inner_circle.update(theta1=None,
                                     theta2=self.left_edge.get_angle())
            self.outer_circle.update(theta1=None,
                                     theta2=self.left_edge.get_angle())
             
    def save(self, ev):
        """
        Remember the roughness for this layer and the next so that we
        can restore on Esc.
        """
        self.base.freeze_axes()
        self.inner_circle.save(ev)
        self.outer_circle.save(ev)
        self.right_edge.save(ev)
        self.left_edge.save(ev)
        
    def _post_data(self):
        pass
    
    def post_data(self,new_sector ):
        """ post data averaging in Q"""
        if self.inner_circle.get_radius() < self.outer_circle.get_radius():
            rmin = self.inner_circle.get_radius()
            rmax = self.outer_circle.get_radius()
        else:
            rmin = self.outer_circle.get_radius()
            rmax = self.inner_circle.get_radius()
        if self.right_edge.get_angle() < self.left_edge.get_angle():
            phimin = self.right_edge.get_angle()
            phimax = self.left_edge.get_angle()
        else:
            phimin = self.left_edge.get_angle()
            phimax = self.right_edge.get_angle()   
        #print "phimin, phimax, rmin ,rmax",math.degrees(phimin),
        # math.degrees(phimax), rmin ,rmax
        #from DataLoader.manipulations import SectorQ
        
        sect = new_sector(r_min=rmin, r_max=rmax,
                          phi_min=phimin, phi_max=phimax)
        sector = sect(self.base.data2D)
        
        from sans.guiframe.dataFitting import Data1D
        if hasattr(sector, "dxl"):
            dxl = sector.dxl
        else:
            dxl = None
        if hasattr(sector, "dxw"):
            dxw = sector.dxw
        else:
            dxw = None
        new_plot = Data1D(x=sector.x, y=sector.y, dy=sector.dy,
                          dxl=dxl, dxw=dxw)
        new_plot.name = str(new_sector.__name__) + \
                        "("+ self.base.data2D.name+")"
        new_plot.source = self.base.data2D.source
        new_plot.interactive = True
        #print "loader output.detector",output.source
        new_plot.detector = self.base.data2D.detector
        # If the data file does not tell us what the axes are, just assume...
        new_plot.xaxis("\\rm{Q}", 'rad')
        new_plot.yaxis("\\rm{Intensity} ", "cm^{-1}")
        new_plot.group_id = str(new_sector.__name__) + self.base.data2D.name
        wx.PostEvent(self.base.parent,
                    NewPlotEvent(plot=new_plot, title=str(new_sector.__name__)))
        
    def moveend(self, ev):
        #self.base.thaw_axes()
        
        # Post paramters
        #event = SlicerParameterEvent()
        #event.type = self.__class__.__name__
        #event.params = self.get_params()
        #print "main moveend ", event.params
        #wx.PostEvent(self.base.parent, event)
        #self._post_data()
        pass
            
    def restore(self):
        """
        Restore the roughness for this layer.
        """
        self.inner_circle.restore()
        self.outer_circle.restore()
        self.right_edge.restore()
        self.left_edge.restore()

    def move(self, x, y, ev):
        """
        Process move to a new position, making sure that the move is allowed.
        """
        pass
        
    def set_cursor(self, x, y):
        """
        """
        pass
        
    def get_params(self):
        """
        """
        params = {}
        params["r_min"] = self.inner_circle.get_radius()
        params["r_max"] = self.outer_circle.get_radius()
        params["phi_min"] = self.right_edge.get_angle()
        params["phi_max"] = self.left_edge.get_angle()
        params["nbins"] = self.nbins
        return params
    
    def set_params(self, params):
        """
        """
        #print "setparams on main slicer ",params
        inner = params["r_min"] 
        outer = params["r_max"] 
        phi_min= params["phi_min"]
        phi_max=params["phi_max"]
        self.nbins = int(params["nbins"])
        
        self.inner_circle.set_cursor(inner, phi_min, phi_max,self.nbins)
        self.outer_circle.set_cursor(outer,  phi_min, phi_max, self.nbins)
        self.right_edge.set_cursor(inner, outer, phi_min)
        self.left_edge.set_cursor(inner, outer, phi_max)
        self._post_data()
        
    def freeze_axes(self):
        """
        """
        self.base.freeze_axes()
        
    def thaw_axes(self):
        """
        """
        self.base.thaw_axes()

    def draw(self):
        """
        """
        self.base.draw()

class SectorInteractorQ(SectorInteractor):
    """
    """
    def __init__(self, base, axes, color='black', zorder=3):
        """
        """
        SectorInteractor.__init__(self, base, axes, color=color)
        self.base=base
        self._post_data()
        
    def _post_data(self):
        """
        """
        from DataLoader.manipulations import SectorQ
        self.post_data(SectorQ)   
        

class SectorInteractorPhi(SectorInteractor):
    """
    """
    def __init__(self, base, axes, color='black', zorder=3):
        """
        """
        SectorInteractor.__init__(self, base, axes, color=color)
        self.base=base
        self._post_data()
        
    def _post_data(self):
        """
        """
        from DataLoader.manipulations import SectorPhi
        self.post_data(SectorPhi )