[b7c7a1c] | 1 | |
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| 2 | """ |
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| 3 | plugin DataLoader responsible of loading data |
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| 4 | """ |
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[f444b20] | 5 | import os |
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| 6 | import sys |
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| 7 | import wx |
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[df7046f] | 8 | import logging |
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[b7c7a1c] | 9 | |
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[f444b20] | 10 | from DataLoader.loader import Loader |
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| 11 | import DataLoader.data_info as DataInfo |
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[b7c7a1c] | 12 | from sans.guiframe.plugin_base import PluginBase |
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[f444b20] | 13 | from sans.guiframe.events import StatusEvent |
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| 14 | from sans.guiframe.events import NewPlotEvent |
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| 15 | from sans.guiframe.dataFitting import Data1D |
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| 16 | from sans.guiframe.dataFitting import Data2D |
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| 17 | from sans.guiframe.utils import parse_name |
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[75fbd17] | 18 | from sans.guiframe.gui_style import GUIFRAME |
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[957723f] | 19 | try: |
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| 20 | # Try to find a local config |
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| 21 | import imp |
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| 22 | path = os.getcwd() |
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| 23 | if(os.path.isfile("%s/%s.py" % (path, 'local_config'))) or \ |
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| 24 | (os.path.isfile("%s/%s.pyc" % (path, 'local_config'))): |
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| 25 | fObj, path, descr = imp.find_module('local_config', [path]) |
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| 26 | config = imp.load_module('local_config', fObj, path, descr) |
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| 27 | else: |
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| 28 | # Try simply importing local_config |
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| 29 | import local_config as config |
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| 30 | except: |
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| 31 | # Didn't find local config, load the default |
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| 32 | import config |
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| 33 | |
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| 34 | extension_list = [] |
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[84e5533] | 35 | if config.APPLICATION_STATE_EXTENSION is not None: |
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| 36 | extension_list.append(config.APPLICATION_STATE_EXTENSION) |
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| 37 | EXTENSIONS = config.PLUGIN_STATE_EXTENSIONS + extension_list |
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[87f4dcc] | 38 | PLUGINS_WLIST = config.PLUGINS_WLIST |
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| 39 | APPLICATION_WLIST = config.APPLICATION_WLIST |
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| 40 | |
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[b7c7a1c] | 41 | |
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| 42 | class Plugin(PluginBase): |
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| 43 | |
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| 44 | def __init__(self, standalone=False): |
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[f444b20] | 45 | PluginBase.__init__(self, name="DataLoader", standalone=standalone) |
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| 46 | #Default location |
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| 47 | self._default_save_location = None |
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[75fbd17] | 48 | self.loader = Loader() |
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| 49 | self._data_menu = None |
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| 50 | |
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[570cb96] | 51 | def populate_file_menu(self): |
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[75fbd17] | 52 | """ |
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[570cb96] | 53 | get a menu item and append it under file menu of the application |
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| 54 | add load file menu item and load folder item |
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[75fbd17] | 55 | """ |
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[570cb96] | 56 | #menu for data files |
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| 57 | menu_list = [] |
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| 58 | data_file_hint = "load one or more data in the application" |
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[a03d419] | 59 | menu_list = [('&Load Data File(s)', data_file_hint, self.load_data)] |
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[570cb96] | 60 | gui_style = self.parent.get_style() |
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| 61 | style = gui_style & GUIFRAME.MULTIPLE_APPLICATIONS |
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| 62 | style1 = gui_style & GUIFRAME.DATALOADER_ON |
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| 63 | if style == GUIFRAME.MULTIPLE_APPLICATIONS: |
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| 64 | #menu for data from folder |
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| 65 | data_folder_hint = "load multiple data in the application" |
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| 66 | menu_list.append(('&Load Data Folder', data_folder_hint, |
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| 67 | self._load_folder)) |
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| 68 | return menu_list |
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[e26d0db] | 69 | |
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[75fbd17] | 70 | |
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[a03d419] | 71 | def load_data(self, event): |
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[f444b20] | 72 | """ |
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| 73 | Load data |
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| 74 | """ |
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[e75b5fa] | 75 | path = None |
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[f444b20] | 76 | if self._default_save_location == None: |
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| 77 | self._default_save_location = os.getcwd() |
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| 78 | |
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| 79 | cards = self.loader.get_wildcards() |
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[87f4dcc] | 80 | temp = [APPLICATION_WLIST] + PLUGINS_WLIST |
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| 81 | for item in temp: |
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| 82 | if item in cards: |
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| 83 | cards.remove(item) |
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[75fbd17] | 84 | wlist = '|'.join(cards) |
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| 85 | style = wx.OPEN|wx.FD_MULTIPLE |
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[f444b20] | 86 | dlg = wx.FileDialog(self.parent, |
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| 87 | "Choose a file", |
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| 88 | self._default_save_location, "", |
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| 89 | wlist, |
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| 90 | style=style) |
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| 91 | if dlg.ShowModal() == wx.ID_OK: |
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[75fbd17] | 92 | file_list = dlg.GetPaths() |
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| 93 | if len(file_list) >= 0 and not(file_list[0]is None): |
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| 94 | self._default_save_location = os.path.dirname(file_list[0]) |
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[e75b5fa] | 95 | path = self._default_save_location |
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[f444b20] | 96 | dlg.Destroy() |
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[75fbd17] | 97 | |
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[e75b5fa] | 98 | if path is None or not file_list or file_list[0] is None: |
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[75fbd17] | 99 | return |
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| 100 | self.get_data(file_list) |
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[e75b5fa] | 101 | |
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[75fbd17] | 102 | |
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| 103 | def can_load_data(self): |
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[f444b20] | 104 | """ |
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[75fbd17] | 105 | if return True, then call handler to laod data |
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| 106 | """ |
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| 107 | return True |
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| 108 | |
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| 109 | |
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| 110 | def _load_folder(self, event): |
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| 111 | """ |
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| 112 | Load entire folder |
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[f444b20] | 113 | """ |
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[e75b5fa] | 114 | path = None |
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[f444b20] | 115 | if self._default_save_location == None: |
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| 116 | self._default_save_location = os.getcwd() |
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| 117 | dlg = wx.DirDialog(self.parent, "Choose a directory", |
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| 118 | self._default_save_location, |
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| 119 | style=wx.DD_DEFAULT_STYLE) |
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| 120 | if dlg.ShowModal() == wx.ID_OK: |
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| 121 | path = dlg.GetPath() |
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| 122 | self._default_save_location = path |
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| 123 | dlg.Destroy() |
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[75fbd17] | 124 | if path is not None: |
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| 125 | self._default_save_location = os.path.dirname(path) |
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| 126 | else: |
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| 127 | return |
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| 128 | file_list = self.get_file_path(path) |
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| 129 | self.get_data(file_list) |
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[e75b5fa] | 130 | |
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[f444b20] | 131 | def load_error(self, error=None): |
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| 132 | """ |
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| 133 | Pop up an error message. |
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| 134 | |
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| 135 | :param error: details error message to be displayed |
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| 136 | """ |
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[8cb8c89] | 137 | if error is not None or str(error).strip() != "": |
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| 138 | dial = wx.MessageDialog(self.parent, str(error), 'Error Loading File', |
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[f444b20] | 139 | wx.OK | wx.ICON_EXCLAMATION) |
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[8cb8c89] | 140 | dial.ShowModal() |
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[f444b20] | 141 | |
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| 142 | def get_file_path(self, path): |
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| 143 | """ |
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| 144 | Receive a list containing folder then return a list of file |
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| 145 | """ |
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| 146 | if os.path.isdir(path): |
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| 147 | return [os.path.join(os.path.abspath(path), |
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| 148 | file) for file in os.listdir(path)] |
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[75fbd17] | 149 | |
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| 150 | def get_data(self, path, format=None): |
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[f444b20] | 151 | """ |
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| 152 | """ |
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| 153 | message = "" |
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[df7046f] | 154 | log_msg = '' |
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[e88ebfd] | 155 | output = {} |
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[f444b20] | 156 | error_message = "" |
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| 157 | for p_file in path: |
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| 158 | basename = os.path.basename(p_file) |
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| 159 | root, extension = os.path.splitext(basename) |
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[75fbd17] | 160 | if extension.lower() in EXTENSIONS: |
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| 161 | log_msg = "Data Loader cannot " |
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| 162 | log_msg += "load: %s\n" % str(p_file) |
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[99f9ecf] | 163 | log_msg += """Please try to open that file from "open project" """ |
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| 164 | log_msg += """or "open analysis" menu\n""" |
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| 165 | error_message = log_msg + "\n" |
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[75fbd17] | 166 | logging.info(log_msg) |
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| 167 | continue |
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| 168 | |
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[f444b20] | 169 | try: |
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[ec489f5] | 170 | temp = self.loader.load(p_file, format) |
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[f444b20] | 171 | if temp.__class__.__name__ == "list": |
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| 172 | for item in temp: |
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[75fbd17] | 173 | data = self.parent.create_gui_data(item, p_file) |
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[e88ebfd] | 174 | output[data.id] = data |
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[f444b20] | 175 | else: |
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[75fbd17] | 176 | data = self.parent.create_gui_data(temp, p_file) |
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[e88ebfd] | 177 | output[data.id] = data |
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[75fbd17] | 178 | message = "Loading Data..." + str(p_file) + "\n" |
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[f444b20] | 179 | self.load_update(output=output, message=message) |
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| 180 | except: |
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[8cb8c89] | 181 | error = "Error while loading Data: %s\n" % str(p_file) |
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| 182 | error += str(sys.exc_value) + "\n" |
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| 183 | error_message = "The data file you selected could not be loaded.\n" |
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| 184 | error_message += "Make sure the content of your file" |
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| 185 | error_message += " is properly formatted.\n\n" |
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| 186 | error_message += "When contacting the DANSE team, mention the" |
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| 187 | error_message += " following:\n%s" % str(error) |
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| 188 | self.load_update(output=output, message=error_message) |
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[f444b20] | 189 | |
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[75fbd17] | 190 | message = "Loading Data Complete! " |
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[df7046f] | 191 | message += log_msg |
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[f444b20] | 192 | self.load_complete(output=output, error_message=error_message, |
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[75fbd17] | 193 | message=message, path=path) |
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[f444b20] | 194 | |
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| 195 | def load_update(self, output=None, message=""): |
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| 196 | """ |
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| 197 | print update on the status bar |
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| 198 | """ |
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| 199 | if message != "": |
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| 200 | wx.PostEvent(self.parent, StatusEvent(status=message, |
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| 201 | type="progress", |
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| 202 | info="warning")) |
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[75fbd17] | 203 | def load_complete(self, output, message="", error_message="", path=None): |
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[f444b20] | 204 | """ |
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| 205 | post message to status bar and return list of data |
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| 206 | """ |
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| 207 | wx.PostEvent(self.parent, StatusEvent(status=message, |
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| 208 | info="warning", |
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| 209 | type="stop")) |
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| 210 | if error_message != "": |
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| 211 | self.load_error(error_message) |
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[e88ebfd] | 212 | self.parent.add_data(data_list=output) |
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[75fbd17] | 213 | |
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| 214 | |
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[f444b20] | 215 | |
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[75fbd17] | 216 | |
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