segmentation / graph_gui

  #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  """
  Created on Mon Aug  5 15:42:19 2019
  
  @author: pavel
  """
  
  from GraphCanvas import GraphCanvas

  from PyQt5 import QtCore, QtGui, QtWidgets

  import network_dep as nwt
  

  import numpy as np
  

  DEBUG = False

  
  """    
  Initializes the entire QTlayout and sets the mouse press events.
  These are connected to the slots such that each is processes by this class
  and the class it wraps.
  """    

  #class GraphWidget(QtGui.QWidget):
  class GraphWidget(QtWidgets.QWidget):

      select = QtCore.pyqtSignal(list)

      def __init__(self):
          super(GraphWidget, self).__init__()

          box = QtWidgets.QVBoxLayout(self)

          self.resize(500,500)
          self.setLayout(box)
          self.canvas = GraphCanvas()

          self.setUpdatesEnabled(True)

          #self.canvas.create_native()
          box.addWidget(self.canvas.native)
          self.color = True
          self.use_3D = False
          self.camera = [0,0,0]
  
          self.canvas.events.mouse_press.connect(self.on_mouse_press)
          self.canvas.events.mouse_release.connect(self.on_mouse_release)
          self.canvas.events.mouse_move.connect(self.on_mouse_move)
          self.canvas.events.mouse_double_click.connect(self.on_mouse_double_click)

          #self.canvas.events.

          #self.show()

          #self.repaint()

  
      """
      Handles the right click mouse event at the QWidget level.
      Depending on where the mouse button in clicked and the current zoom level,
      the function gets the unique id of the node, cluster or background under the
      cursor and opens a context menu based on the ID.
      
      The context menu level actions are also coded in this section of the code.
      """
      def on_mouse_press(self, event):

          self.canvas.set_current(event)

          if event.button == 2:
              if self.canvas.view[0][0] >= 0.0010:

                  self.canvas.update()

                  c_id = self.canvas.get_clicked_id(event)

                  self.canvas.update()

              else:

                  self.canvas.update()

                  c_id = self.canvas.get_clicked_id(event, clusters=True)

                  self.canvas.update()

              #right click
              if(c_id == None):
                  menu = QtWidgets.QMenu(self)
                  NS = menu.addAction('Node Size')
  
                  #tmp = menu.addAction('temp')
                  tmp = menu.addMenu('Node Color')
                  vertex_props = self.canvas.G.vertex_properties.keys()
                  vertex_actions = []
                  for i in range(len(vertex_props)):
                      if(vertex_props[i] != "map" or vertex_props[i] != "RGBA"):
                          vertex_actions.append(tmp.addAction(vertex_props[i]))
                  #tmp.addAction("Cluster")
                  #NC = menu.addAction('Node Color')
                  #EXP = menu.addAction('Export VTK')
                  #EXP_adv = menu.addAction('Export VTK Advanced')
                  NL = menu.addAction('New Layout')

                  NSL = menu.addAction('New Spring-Onion Layout (sum)')
                  NSLMI = menu.addAction('New Spring-Onion Layout(max)')
                  EXPAND = menu.addAction('Expand')

                  action = menu.exec_(event.native.globalPos())

                  if DEBUG:
                      print(action)

                  for i in range(len(vertex_actions)):
                      if action == vertex_actions[i]:
                          if vertex_props[i] == "clusters":
                              self.canvas.color_vertices(self.canvas.G, vertex_props[i], dtype=True)
                          else:
                              self.canvas.color_vertices(self.canvas.G, vertex_props[i])

                              
                          if DEBUG:
                              print(vertex_props[i])

                  if action == NS:
                      if self.use_3D == False:
                          self.use_3D = True
                      else:
                          self.use_3D = False
                          self.canvas.size_vertices(self.canvas.G, 'degree' )

                          self.canvas.color_vertices(self.canvas.G, 'degree')

                  #if action == NC:
                  #    self.canvas.color_vertices(self.canvas.G, not self.color)
                  #    self.color = not self.color
  #                if action == EXP:
  #                    nwt.Network.write_vtk(self.canvas.G, "./nwt.vtk")
  #                if action == EXP_adv:
  #                    nwt.Network.write_vtk(self.canvas.G, "./nwt_median_binned.vtk")
  #                    nwt.Network.write_vtk(self.canvas.G, "./nwt_median_non_binned.vtk", binning=False)
  #                    nwt.Network.write_vtk(self.canvas.G, "./nwt_points_wise_binned.vtk", camera=self.camera, binning = True)
  #                    nwt.Network.write_vtk(self.canvas.G, "./nwt_points_wise_non_binned.vtk", camera=self.camera, binning = False)
                  if action == tmp:

                      if DEBUG:
                          print("Stuff")

                      #self.cb = QtWidgets.QComboBox()
                      #vertex_props = self.canvas.G.vertex_properties.keys()
                      #for i in range(len(vertex_props)):
                      #    self.cb.addItem(vertex_props[i])
                      #self.cb.currentIndexChanged.connect(self.selection_change)
                      #self.cb.show()
                  if action == NL:

                      old_pos = self.canvas.G.vertex_properties["pos"].get_2d_array(range(3)).T
                      nG = nwt.Network.gen_new_fd_layout(self.canvas.G)
                      new_pos = nG.vertex_properties["pos"].get_2d_array(range(3)).T
                      self.canvas.animate(old_pos, new_pos)
                      
                      #self.canvas.gen_vertex_vbo(self.canvas.G)

                      #self.canvas.set_data(self.canvas.G, self.canvas.bbl, self.canvas.bbu)

                      #self.canvas.expand_clusters(self.canvas.G, self.canvas.n_c)
                  if action == NSL:
                      old_pos = self.canvas.G.vertex_properties["pos"].get_2d_array(range(3)).T
                      nG = nwt.Network.gen_spring_onion_layout(self.canvas.G, 'degree', 1.0, 1000, 0.01, 1.0)
                      new_pos = nG.vertex_properties["pos"].get_2d_array(range(3)).T
                      
                      self.canvas.animate(old_pos, new_pos)
                      #self.canvas.set_data(nG, self.canvas.bbl, self.canvas.bbu)
                      
                      #self.canvas.gen_vertex_vbo(self.canvas.G)
                      #self.canvas.expand_clusters(self.canvas.G, self.canvas.n_c)
                  if action == NSLMI:
                      old_pos = self.canvas.G.vertex_properties["pos"].get_2d_array(range(3)).T
                      nG = nwt.Network.gen_spring_onion_layout(self.canvas.G, 'degree', 1.0, 1000, 0.01, 1.0, False)
                      new_pos = nG.vertex_properties["pos"].get_2d_array(range(3)).T
                      
                      self.canvas.animate(old_pos, new_pos)
                      #self.canvas.set_data(nG, self.canvas.bbl, self.canvas.bbu)
                      #self.canvas.expand_clusters(self.canvas.G, self.canvas.n_c)
                      
                      #self.canvas.gen_vertex_vbo(self.canvas.G)
                      
                  if action == EXPAND:
                      #self.canvas.gen_vertex_vbo(self.canvas.G)
                      old_pos = self.canvas.G.vertex_properties["pos"].get_2d_array(range(3)).T

                      self.canvas.expand_clusters(self.canvas.G, self.canvas.n_c)

                      new_pos = self.canvas.G.vertex_properties["pos"].get_2d_array(range(3)).T
                      #self.canvas.expand_clusters(self.canvas.G, self.canvas.n_c)
                      
                      self.canvas.animate(old_pos, new_pos)

                      #self.canvas.size_vertices(self.canvas.G, 'degree_volume')
              else:
                  if self.canvas.view[0][0] >= 0.0010:
                      menu = QtWidgets.QMenu(self)
                      NS = menu.addAction('Display Node Info')
                      action = menu.exec_(event.native.globalPos())
                      if action == NS:
                          print("Display Node Info")
                  else:
                      menu = QtWidgets.QMenu(self)
                      MnOC = menu.addAction('Minimize Other Clusters')
                      RA   = menu.addAction('Reset Alpha')
                      action = menu.exec_(event.native.globalPos())
                      if action == MnOC:
                          new_Graph = self.canvas.focus_on_cluster(self.canvas.G, c_id)
                          self.test.draw_new(new_Graph)
                      if action == RA:
                          self.canvas.reset_alpha(c_id[0])
  
  
  #    def selection_change(self, i):
  #        self.canvas.size_vertices(self.canvas.G, self.cb.currentText())
  
  
      """
          Handles the mouse double click event.
          Pass-through function.
      """

      def on_mouse_double_click(self, event):

          self.canvas.update_path(event)
          self.select.emit(self.canvas.get_path())

  #        old_pos = self.canvas.G.vertex_properties["pos"].get_2d_array(range(3)).T
  #        nG = nwt.Network.gen_new_fd_layout(self.canvas.G)

          #    def animate(self, new_G):
  #            

  #        new_pos = nG.vertex_properties["pos"].get_2d_array(range(3)).T
  #        self.canvas.animate(old_pos, new_pos)

  
      """
          Handles the mouse release event.
          Pass-through function.
      """
      def on_mouse_release(self, event):
          n = 1
  
      """
          Handles the mouse move event.
          Pass-through function.
      """
      def on_mouse_move(self, event):
          n = 2
  
      """
          Internal function that interacts with the tube visualization.
      """
      def set_g_view(self, test):
          self.test = test
  
      """
          Function to handle the pyqt Slot that receives the interacted-with signal
          from the Tube visualization. The signal sends the camera position in 3D coordinates
          every time the camera is moved.
      """
      @QtCore.pyqtSlot(float, float, float)
      def sigUpdate(self, x, y, z):
          self.camera = [x,y,z]
          if(self.use_3D == True):
              self.camera = [x,y,z]
              self.canvas.vertexSizeFromDistance(self.canvas.G, [x,y,z])
              self.canvas.vertexAlphaFromDistance(self.canvas.G, [x,y,z])

              if DEBUG:
                  print("got signal", x, y, z)

  
      """
          Initialization method that connects the slot to the function that handles
          the information being sent.
      """
      def connect(self, signal_object):
          signal_object.sigUpdate.connect(self.sigUpdate)