#--------------------------------------------------------------------------
# Software:     InVesalius - Software de Reconstrucao 3D de Imagens Medicas
# Copyright:    (C) 2001  Centro de Pesquisas Renato Archer
# Homepage:     http://www.softwarepublico.gov.br
# Contact:      invesalius@cti.gov.br
# License:      GNU - GPL 2 (LICENSE.txt/LICENCA.txt)
#--------------------------------------------------------------------------
#    Este programa e software livre; voce pode redistribui-lo e/ou
#    modifica-lo sob os termos da Licenca Publica Geral GNU, conforme
#    publicada pela Free Software Foundation; de acordo com a versao 2
#    da Licenca.
#
#    Este programa eh distribuido na expectativa de ser util, mas SEM
#    QUALQUER GARANTIA; sem mesmo a garantia implicita de
#    COMERCIALIZACAO ou de ADEQUACAO A QUALQUER PROPOSITO EM
#    PARTICULAR. Consulte a Licenca Publica Geral GNU para obter mais
#    detalhes.
#--------------------------------------------------------------------------

import wx
import wx.lib.embeddedimage as emb
import wx.lib.hyperlink as hl
import wx.lib.platebtn as pbtn
from wx.lib.pubsub import pub as Publisher

import constants

ID_BTN_MEASURE_LINEAR = wx.NewId()
ID_BTN_MEASURE_ANGULAR = wx.NewId()
ID_BTN_ANNOTATION = wx.NewId()

class TaskPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)

        inner_panel = InnerTaskPanel(self)

        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(inner_panel, 1, wx.EXPAND | wx.GROW | wx.BOTTOM | wx.RIGHT |
                  wx.LEFT, 7)
        sizer.Fit(self)

        self.SetSizer(sizer)
        self.Update()
        self.SetAutoLayout(1)

class InnerTaskPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        self.SetBackgroundColour(wx.Colour(255,255,255))
        self.SetAutoLayout(1)

        # Counter for projects loaded in current GUI
        self.proj_count = 0

        # Floating items (to be inserted)
        self.float_hyper_list = []

        # Fixed text and hyperlink items
        tooltip = wx.ToolTip(_("Measure distances"))
        txt_measure = wx.StaticText(self, -1, _("Measure"))
        txt_measure.SetToolTip(tooltip)

        tooltip = wx.ToolTip(_("Add text annotations"))
        txt_annotation = hl.HyperLinkCtrl(self, -1,_("Add text annotations"))
        txt_annotation.SetUnderlines(False, False, False)
        txt_annotation.SetColours("BLACK", "BLACK", "BLACK")
        txt_annotation.SetToolTip(tooltip)
        txt_annotation.AutoBrowse(False)
        txt_annotation.UpdateLink()
        txt_annotation.Bind(hl.EVT_HYPERLINK_LEFT, self.OnTextAnnotation)

        # Image(s) for buttons
        BMP_ANNOTATE = wx.Bitmap("../icons/annotation.png", wx.BITMAP_TYPE_PNG)
        BMP_ANGLE = wx.Bitmap("../icons/measure_angle.jpg", wx.BITMAP_TYPE_JPEG)
        BMP_DISTANCE = wx.Bitmap("../icons/measure_line.png", wx.BITMAP_TYPE_PNG)
        BMP_ANNOTATE.SetWidth(25)
        BMP_ANNOTATE.SetHeight(25)
        BMP_ANGLE.SetWidth(25)
        BMP_ANGLE.SetHeight(25)
        BMP_DISTANCE.SetWidth(25)
        BMP_DISTANCE.SetHeight(25)

        # Buttons related to hyperlinks
        button_style = pbtn.PB_STYLE_SQUARE | pbtn.PB_STYLE_DEFAULT

        button_measure_linear = pbtn.PlateButton(self, ID_BTN_MEASURE_LINEAR, "",
                                               BMP_DISTANCE, style=button_style)
        button_measure_angular = pbtn.PlateButton(self, ID_BTN_MEASURE_ANGULAR, "",
                                              BMP_ANGLE, style=button_style)

        button_annotation = pbtn.PlateButton(self, ID_BTN_ANNOTATION, "",
                                              BMP_ANNOTATE, style=button_style)

        # When using PlaneButton, it is necessary to bind events from parent win
        self.Bind(wx.EVT_BUTTON, self.OnButton)

        # Tags and grid sizer for fixed items
        flag_link = wx.EXPAND|wx.GROW|wx.LEFT|wx.TOP
        flag_button = wx.EXPAND | wx.GROW

        sizer = wx.GridBagSizer(hgap=0, vgap=0)
        sizer.Add(txt_measure,pos=(0,0),flag=wx.GROW|wx.EXPAND|wx.TOP,border=3)
        sizer.Add(button_measure_linear,pos=(0,1),flag=wx.GROW|wx.EXPAND)
        sizer.Add(button_measure_angular,pos=(0,2),flag=wx.GROW|wx.EXPAND)
        sizer.Add(txt_annotation, pos=(1,0),flag=wx.GROW|wx.EXPAND)
        sizer.Add(button_annotation, pos=(1,2),span=(2,1), flag=wx.GROW|wx.EXPAND)
        sizer.AddGrowableCol(0)

        # Add line sizers into main sizer
        main_sizer = wx.BoxSizer(wx.VERTICAL)
        main_sizer.Add(sizer, 0, wx.GROW|wx.EXPAND)
        main_sizer.Fit(self)

        # Update main sizer and panel layout
        self.SetSizer(sizer)
        self.Fit()
        self.sizer = main_sizer

    def OnTextAnnotation(self, evt=None):
        print "TODO: Send Signal - Add text annotation (both 2d and 3d)"

    def OnLinkLinearMeasure(self):
        Publisher.sendMessage('Enable style',
                constants.STATE_MEASURE_DISTANCE)

    def OnLinkAngularMeasure(self):
        Publisher.sendMessage('Enable style',
                constants.STATE_MEASURE_ANGLE)

    def OnButton(self, evt):
        id = evt.GetId()

        if id == ID_BTN_MEASURE_LINEAR:
            self.OnLinkLinearMeasure()
        elif id == ID_BTN_MEASURE_ANGULAR:
            self.OnLinkAngularMeasure()
        else: # elif id == ID_BTN_ANNOTATION:
            self.OnTextAnnotation()