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2 | |
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3 | |
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4 | ################################################################################ |
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5 | #This software was developed by the University of Tennessee as part of the |
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6 | #Distributed Data Analysis of Neutron Scattering Experiments (DANSE) |
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7 | #project funded by the US National Science Foundation. |
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8 | # |
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9 | #See the license text in license.txt |
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10 | # |
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11 | #copyright 2009, University of Tennessee |
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12 | ################################################################################ |
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13 | |
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14 | |
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15 | import sys |
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16 | import wx |
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17 | import copy |
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18 | import logging |
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19 | |
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20 | from sans.guiframe.dataFitting import Data1D |
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21 | from sans.guiframe.events import NewPlotEvent |
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22 | from sans.guiframe.events import StatusEvent |
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23 | from sans.guiframe.gui_style import GUIFRAME_ID |
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24 | from .invariant_state import Reader as reader |
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25 | from sans.dataloader.loader import Loader |
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26 | from .invariant_panel import InvariantPanel |
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27 | from sans.guiframe.plugin_base import PluginBase |
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28 | |
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29 | class Plugin(PluginBase): |
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30 | """ |
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31 | This class defines the interface for invariant Plugin class |
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32 | that can be used by the gui_manager. |
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33 | """ |
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34 | |
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35 | def __init__(self, standalone=False): |
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36 | PluginBase.__init__(self, name="Invariant", standalone=standalone) |
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37 | |
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38 | #dictionary containing data name and error on dy of that data |
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39 | self.err_dy = {} |
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40 | |
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41 | #default state objects |
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42 | self.state_reader = None |
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43 | self._extensions = '.inv' |
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44 | self.temp_state = None |
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45 | self.__data = None |
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46 | |
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47 | # Log startup |
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48 | logging.info("Invariant plug-in started") |
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49 | |
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50 | def help(self, evt): |
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51 | """ |
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52 | Show a general help dialog. |
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53 | """ |
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54 | from help_panel import HelpWindow |
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55 | frame = HelpWindow(None, -1) |
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56 | if hasattr(frame, "IsIconized"): |
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57 | if not frame.IsIconized(): |
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58 | try: |
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59 | icon = self.parent.GetIcon() |
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60 | frame.SetIcon(icon) |
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61 | except: |
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62 | pass |
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63 | frame.Show(True) |
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64 | |
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65 | def get_data(self): |
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66 | """ |
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67 | """ |
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68 | return self.__data |
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69 | |
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70 | def get_panels(self, parent): |
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71 | """ |
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72 | Create and return the list of wx.Panels for your plug-in. |
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73 | Define the plug-in perspective. |
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74 | |
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75 | Panels should inherit from DefaultPanel defined below, |
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76 | or should present the same interface. They must define |
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77 | "window_caption" and "window_name". |
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78 | |
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79 | :param parent: parent window |
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80 | |
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81 | :return: list of panels |
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82 | """ |
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83 | ## Save a reference to the parent |
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84 | self.parent = parent |
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85 | self.invariant_panel = InvariantPanel(parent=self.parent) |
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86 | self.invariant_panel.set_manager(manager=self) |
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87 | self.perspective.append(self.invariant_panel.window_name) |
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88 | #Create reader when fitting panel are created |
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89 | self.state_reader = reader(self.set_state) |
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90 | #append that reader to list of available reader |
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91 | loader = Loader() |
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92 | loader.associate_file_reader(".inv", self.state_reader) |
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93 | #loader.associate_file_reader(".svs", self.state_reader) |
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94 | # Return the list of panels |
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95 | return [self.invariant_panel] |
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96 | |
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97 | def get_context_menu(self, plotpanel=None): |
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98 | """ |
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99 | This method is optional. |
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100 | |
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101 | When the context menu of a plot is rendered, the |
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102 | get_context_menu method will be called to give you a |
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103 | chance to add a menu item to the context menu. |
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104 | |
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105 | A ref to a Graph object is passed so that you can |
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106 | investigate the plot content and decide whether you |
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107 | need to add items to the context menu. |
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108 | |
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109 | This method returns a list of menu items. |
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110 | Each item is itself a list defining the text to |
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111 | appear in the menu, a tool-tip help text, and a |
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112 | call-back method. |
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113 | |
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114 | :param graph: the Graph object to which we attach the context menu |
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115 | |
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116 | :return: a list of menu items with call-back function |
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117 | """ |
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118 | graph = plotpanel.graph |
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119 | invariant_option = "Compute invariant" |
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120 | invariant_hint = "Will displays the invariant panel for" |
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121 | invariant_hint += " further computation" |
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122 | |
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123 | if graph.selected_plottable not in plotpanel.plots: |
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124 | return [] |
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125 | data = plotpanel.plots[graph.selected_plottable] |
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126 | |
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127 | if issubclass(data.__class__, Data1D): |
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128 | if data.name != "$I_{obs}(q)$" and data.name != " $P_{fit}(r)$": |
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129 | return [[invariant_option, invariant_hint, |
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130 | self._compute_invariant]] |
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131 | return [] |
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132 | |
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133 | def _compute_invariant(self, event): |
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134 | """ |
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135 | Open the invariant panel to invariant computation |
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136 | """ |
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137 | self.panel = event.GetEventObject() |
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138 | Plugin.on_perspective(self, event=event) |
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139 | id = self.panel.graph.selected_plottable |
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140 | data = self.panel.plots[self.panel.graph.selected_plottable] |
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141 | if data is None: |
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142 | return |
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143 | if not issubclass(data.__class__, Data1D): |
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144 | name = data.__class__.__name__ |
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145 | msg = "Invariant use only Data1D got: [%s] " % str(name) |
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146 | raise ValueError, msg |
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147 | self.compute_helper(data=data) |
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148 | |
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149 | def set_data(self, data_list=None): |
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150 | """ |
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151 | receive a list of data and compute invariant |
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152 | """ |
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153 | msg = "" |
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154 | data = None |
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155 | if data_list is None: |
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156 | data_list = [] |
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157 | if len(data_list) >= 1: |
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158 | if len(data_list) == 1: |
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159 | data = data_list[0] |
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160 | else: |
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161 | data_1d_list = [] |
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162 | data_2d_list = [] |
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163 | error_msg = "" |
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164 | # separate data into data1d and data2d list |
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165 | for data in data_list: |
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166 | if data is not None: |
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167 | if issubclass(data.__class__, Data1D): |
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168 | data_1d_list.append(data) |
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169 | else: |
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170 | error_msg += " %s type %s \n" % (str(data.name), |
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171 | str(data.__class__.__name__)) |
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172 | data_2d_list.append(data) |
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173 | if len(data_2d_list) > 0: |
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174 | msg = "Invariant does not support the following data types:\n" |
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175 | msg += error_msg |
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176 | if len(data_1d_list) == 0: |
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177 | wx.PostEvent(self.parent, |
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178 | StatusEvent(status=msg, info='error')) |
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179 | return |
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180 | msg += "Invariant panel does not allow multiple data!\n" |
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181 | msg += "Please select one.\n" |
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182 | if len(data_list) > 1: |
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183 | from invariant_widgets import DataDialog |
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184 | dlg = DataDialog(data_list=data_1d_list, text=msg) |
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185 | if dlg.ShowModal() == wx.ID_OK: |
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186 | data = dlg.get_data() |
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187 | else: |
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188 | data = None |
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189 | dlg.Destroy() |
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190 | |
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191 | if data is None: |
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192 | msg += "invariant receives no data. \n" |
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193 | wx.PostEvent(self.parent, |
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194 | StatusEvent(status=msg, info='error')) |
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195 | return |
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196 | if not issubclass(data.__class__, Data1D): |
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197 | msg += "invariant cannot be computed for data of " |
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198 | msg += "type %s\n" % (data.__class__.__name__) |
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199 | wx.PostEvent(self.parent, |
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200 | StatusEvent(status=msg, info='error')) |
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201 | return |
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202 | else: |
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203 | wx.PostEvent(self.parent, NewPlotEvent(plot=data, |
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204 | title=data.title)) |
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205 | try: |
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206 | self.compute_helper(data) |
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207 | except: |
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208 | msg = "Invariant Set_data: " + str(sys.exc_value) |
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209 | wx.PostEvent(self.parent, StatusEvent(status=msg, |
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210 | info="error")) |
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211 | else: |
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212 | msg = "invariant cannot be computed for data of " |
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213 | msg += "type %s" % (data.__class__.__name__) |
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214 | wx.PostEvent(self.parent, |
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215 | StatusEvent(status=msg, info='error')) |
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216 | def delete_data(self, data_id): |
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217 | """ |
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218 | """ |
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219 | if self.__data is None: |
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220 | return |
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221 | for id in data_id: |
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222 | if id == self.__data.id: |
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223 | self.clear_panel() |
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224 | |
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225 | def clear_panel(self): |
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226 | """ |
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227 | """ |
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228 | self.invariant_panel.clear_panel() |
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229 | |
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230 | def compute_helper(self, data): |
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231 | """ |
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232 | """ |
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233 | if data is None: |
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234 | return |
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235 | # set current data if not it's a state data |
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236 | if not self.invariant_panel.is_state_data: |
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237 | # Store reference to data |
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238 | self.__data = data |
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239 | # Set the data set to be user for invariant calculation |
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240 | self.invariant_panel.set_data(data=data) |
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241 | |
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242 | def save_file(self, filepath, state=None): |
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243 | """ |
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244 | Save data in provided state object. |
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245 | |
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246 | :param filepath: path of file to write to |
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247 | :param state: invariant state |
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248 | """ |
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249 | # Write the state to file |
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250 | # First, check that the data is of the right type |
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251 | current_plottable = self.__data |
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252 | |
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253 | if issubclass(current_plottable.__class__, Data1D): |
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254 | self.state_reader.write(filepath, current_plottable, state) |
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255 | else: |
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256 | msg = "invariant.save_file: the data being saved is" |
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257 | msg += " not a sans.dataloader.data_info.Data1D object" |
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258 | raise RuntimeError, msg |
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259 | |
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260 | def set_state(self, state=None, datainfo=None): |
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261 | """ |
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262 | Call-back method for the state reader. |
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263 | This method is called when a .inv/.svs file is loaded. |
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264 | |
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265 | :param state: State object |
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266 | """ |
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267 | self.temp_state = None |
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268 | try: |
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269 | if datainfo.__class__.__name__ == 'list': |
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270 | data = datainfo[0] |
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271 | else: |
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272 | data = datainfo |
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273 | if data is None: |
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274 | msg = "invariant.set_state: datainfo parameter cannot" |
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275 | msg += " be None in standalone mode" |
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276 | raise RuntimeError, msg |
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277 | # Make sure the user sees the invariant panel after loading |
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278 | #self.parent.set_perspective(self.perspective) |
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279 | self.on_perspective(event=None) |
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280 | name = data.meta_data['invstate'].file |
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281 | data.meta_data['invstate'].file = name |
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282 | data.name = name |
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283 | data.filename = name |
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284 | |
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285 | data = self.parent.create_gui_data(data,None) |
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286 | self.__data = data |
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287 | wx.PostEvent(self.parent, NewPlotEvent(plot=self.__data, |
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288 | reset=True, title=self.__data.title)) |
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289 | data_dict = {self.__data.id:self.__data} |
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290 | self.parent.add_data(data_list=data_dict) |
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291 | # set state |
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292 | self.invariant_panel.is_state_data = True |
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293 | |
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294 | # Load the invariant states |
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295 | self.temp_state = state |
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296 | # Requires to have self.__data and self.temp_state first. |
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297 | self.on_set_state_helper(None) |
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298 | |
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299 | except: |
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300 | logging.error("invariant.set_state: %s" % sys.exc_value) |
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301 | |
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302 | def on_set_state_helper(self, event=None): |
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303 | """ |
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304 | Set the state when called by EVT_STATE_UPDATE event from guiframe |
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305 | after a .inv/.svs file is loaded |
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306 | """ |
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307 | self.invariant_panel.set_state(state=self.temp_state, |
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308 | data=self.__data) |
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309 | self.temp_state = None |
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310 | |
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311 | |
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312 | def plot_theory(self, data=None, name=None): |
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313 | """ |
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314 | Receive a data set and post a NewPlotEvent to parent. |
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315 | |
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316 | :param data: extrapolated data to be plotted |
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317 | :param name: Data's name to use for the legend |
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318 | """ |
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319 | #import copy |
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320 | if data is None: |
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321 | id = str(self.__data.id) + name |
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322 | group_id = self.__data.group_id |
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323 | wx.PostEvent(self.parent, NewPlotEvent(id=id, |
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324 | group_id=group_id, |
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325 | action='Remove')) |
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326 | return |
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327 | |
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328 | new_plot = Data1D(x=[], y=[], dy=None) |
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329 | new_plot.symbol = GUIFRAME_ID.CURVE_SYMBOL_NUM |
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330 | scale = self.invariant_panel.get_scale() |
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331 | background = self.invariant_panel.get_background() |
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332 | |
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333 | if scale != 0: |
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334 | # Put back the sacle and bkg for plotting |
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335 | data.y = (data.y + background)/scale |
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336 | new_plot = Data1D(x=data.x, y=data.y, dy=None) |
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337 | new_plot.symbol = GUIFRAME_ID.CURVE_SYMBOL_NUM |
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338 | else: |
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339 | msg = "Scale can not be zero." |
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340 | raise ValueError, msg |
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341 | if len(new_plot.x)== 0 : |
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342 | return |
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343 | |
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344 | new_plot.name = name |
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345 | new_plot.xaxis(self.__data._xaxis, self.__data._xunit) |
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346 | new_plot.yaxis(self.__data._yaxis, self.__data._yunit) |
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347 | new_plot.group_id = self.__data.group_id |
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348 | new_plot.id = str(self.__data.id) + name |
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349 | new_plot.title = self.__data.title |
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350 | # Save theory_data in a state |
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351 | if data != None: |
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352 | name_head = name.split('-') |
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353 | if name_head[0] == 'Low': |
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354 | self.invariant_panel.state.theory_lowQ = copy.deepcopy(new_plot) |
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355 | elif name_head[0] == 'High': |
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356 | self.invariant_panel.state.theory_highQ =copy.deepcopy(new_plot) |
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357 | |
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358 | self.parent.update_theory(data_id=self.__data.id, theory=new_plot) |
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359 | wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot, |
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360 | title=self.__data.title)) |
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361 | |
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362 | def plot_data(self, scale, background): |
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363 | """ |
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364 | replot the current data if the user enters a new scale or background |
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365 | """ |
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366 | new_plot = scale * self.__data - background |
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367 | new_plot.name = self.__data.name |
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368 | new_plot.group_id = self.__data.group_id |
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369 | new_plot.id = self.__data.id |
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370 | new_plot.title = self.__data.title |
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371 | |
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372 | # Save data in a state: but seems to never happen |
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373 | if new_plot != None: |
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374 | self.invariant_panel.state.data = copy.deepcopy(new_plot) |
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375 | wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot, |
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376 | title=new_plot.title)) |
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377 | |
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