1 | # global |
---|
2 | import sys |
---|
3 | import os |
---|
4 | import logging |
---|
5 | |
---|
6 | from PyQt4 import QtCore |
---|
7 | from PyQt4 import QtGui |
---|
8 | from PyQt4 import QtWebKit |
---|
9 | from twisted.internet import threads |
---|
10 | |
---|
11 | # SAS |
---|
12 | from GuiUtils import * |
---|
13 | from sas.sascalc.dataloader.loader import Loader |
---|
14 | from sas.sasgui.guiframe.data_manager import DataManager |
---|
15 | |
---|
16 | # UI |
---|
17 | #from UI.DataExplorerUI import DataExplorerUI |
---|
18 | from UI.TabbedFileLoadUI import DataLoadWidget |
---|
19 | |
---|
20 | class DataExplorerWindow(DataLoadWidget): |
---|
21 | # The controller which is responsible for managing signal slots connections |
---|
22 | # for the gui and providing an interface to the data model. |
---|
23 | |
---|
24 | def __init__(self, parent=None, guimanager=None): |
---|
25 | super(DataExplorerWindow, self).__init__(parent) |
---|
26 | |
---|
27 | # Main model for keeping loaded data |
---|
28 | self.model = QtGui.QStandardItemModel(self) |
---|
29 | self._default_save_location = None |
---|
30 | |
---|
31 | # GuiManager is the actual parent, but we needed to also pass the QMainWindow |
---|
32 | # in order to set the widget parentage properly. |
---|
33 | self.parent = guimanager |
---|
34 | self.loader = Loader() |
---|
35 | self.manager = DataManager() |
---|
36 | |
---|
37 | # Connect the buttons |
---|
38 | self.cmdLoad.clicked.connect(self.loadFile) |
---|
39 | self.cmdDelete.clicked.connect(self.deleteFile) |
---|
40 | self.cmdSendTo.clicked.connect(self.sendData) |
---|
41 | |
---|
42 | # Communicator for signal definitions |
---|
43 | self.communicate = self.parent.communicator() |
---|
44 | |
---|
45 | # Proxy model for showing a subset of Data1D/Data2D content |
---|
46 | self.proxy = QtGui.QSortFilterProxyModel(self) |
---|
47 | self.proxy.setSourceModel(self.model) |
---|
48 | |
---|
49 | # The Data viewer is QTreeView showing the proxy model |
---|
50 | self.treeView.setModel(self.proxy) |
---|
51 | |
---|
52 | def loadFile(self, event): |
---|
53 | """ |
---|
54 | Called when the "Load" button pressed. |
---|
55 | Opens the Qt "Open File..." dialog |
---|
56 | """ |
---|
57 | path_str = self.chooseFiles() |
---|
58 | if not path_str: |
---|
59 | return |
---|
60 | |
---|
61 | # Notify the manager of the new data available |
---|
62 | self.communicate.fileReadSignal.emit(path_str) |
---|
63 | |
---|
64 | # Read in the data from chosen file(s) |
---|
65 | self.readData(path_str) |
---|
66 | |
---|
67 | return |
---|
68 | |
---|
69 | def deleteFile(self, event): |
---|
70 | """ |
---|
71 | """ |
---|
72 | # Figure out which rows are checked |
---|
73 | |
---|
74 | # Delete these rows from the model |
---|
75 | |
---|
76 | # Call data_manager update with delete_data() |
---|
77 | |
---|
78 | pass |
---|
79 | |
---|
80 | def sendData(self, event): |
---|
81 | """ |
---|
82 | """ |
---|
83 | # Figure out which rows are checked |
---|
84 | |
---|
85 | # Dig up data from model |
---|
86 | # To get the original Data1D object back use: |
---|
87 | # object_item.data().toPyObject() |
---|
88 | |
---|
89 | |
---|
90 | # Which perspective has been selected? |
---|
91 | |
---|
92 | # New plot or appended? |
---|
93 | |
---|
94 | # Notify the GuiManager about the send request |
---|
95 | # updatePerspectiveWithDataSignal() |
---|
96 | pass |
---|
97 | |
---|
98 | def chooseFiles(self): |
---|
99 | """ |
---|
100 | """ |
---|
101 | # List of known extensions |
---|
102 | wlist = self.getWlist() |
---|
103 | |
---|
104 | # Location is automatically saved - no need to keep track of the last dir |
---|
105 | # TODO: is it really? |
---|
106 | paths = QtGui.QFileDialog.getOpenFileName(self, "Choose a file", "", wlist) |
---|
107 | if paths is None: |
---|
108 | return |
---|
109 | |
---|
110 | if paths.__class__.__name__ != "list": |
---|
111 | paths = [paths] |
---|
112 | |
---|
113 | path_str=[] |
---|
114 | for path in paths: |
---|
115 | if str(path): |
---|
116 | path_str.append(str(path)) |
---|
117 | |
---|
118 | return path_str |
---|
119 | |
---|
120 | def readData(self, path): |
---|
121 | """ |
---|
122 | verbatim copy/paste from |
---|
123 | sasgui\guiframe\local_perspectives\data_loader\data_loader.py |
---|
124 | slightly modified for clarity |
---|
125 | """ |
---|
126 | message = "" |
---|
127 | log_msg = '' |
---|
128 | output = {} |
---|
129 | any_error = False |
---|
130 | data_error = False |
---|
131 | error_message = "" |
---|
132 | for p_file in path: |
---|
133 | info = "info" |
---|
134 | basename = os.path.basename(p_file) |
---|
135 | _, extension = os.path.splitext(basename) |
---|
136 | if extension.lower() in EXTENSIONS: |
---|
137 | any_error = True |
---|
138 | log_msg = "Data Loader cannot " |
---|
139 | log_msg += "load: %s\n" % str(p_file) |
---|
140 | log_msg += """Please try to open that file from "open project" """ |
---|
141 | log_msg += """or "open analysis" menu\n""" |
---|
142 | error_message = log_msg + "\n" |
---|
143 | logging.info(log_msg) |
---|
144 | continue |
---|
145 | |
---|
146 | try: |
---|
147 | message = "Loading Data... " + str(p_file) + "\n" |
---|
148 | |
---|
149 | # change this to signal notification in GuiManager |
---|
150 | self.communicate.statusBarUpdateSignal.emit(message) |
---|
151 | |
---|
152 | # threaded file load |
---|
153 | # load_thread = threads.deferToThread(self.loadThread, p_file) |
---|
154 | # Add deferred callback for call return |
---|
155 | # load_thread.addCallback(self.plotResult) |
---|
156 | |
---|
157 | output_objects = self.loader.load(p_file) |
---|
158 | |
---|
159 | # Some loaders return a list and some just a single Data1D object. |
---|
160 | # Standardize. |
---|
161 | if not isinstance(output_objects, list): |
---|
162 | output_objects = [output_objects] |
---|
163 | |
---|
164 | for item in output_objects: |
---|
165 | # cast sascalc.dataloader.data_info.Data1D into sasgui.guiframe.dataFitting.Data1D |
---|
166 | # TODO : Fix it |
---|
167 | new_data = self.manager.create_gui_data(item, p_file) |
---|
168 | output[new_data.id] = new_data |
---|
169 | self.updateModel(new_data, p_file) |
---|
170 | |
---|
171 | if hasattr(item, 'errors'): |
---|
172 | for error_data in item.errors: |
---|
173 | data_error = True |
---|
174 | message += "\tError: {0}\n".format(error_data) |
---|
175 | else: |
---|
176 | logging.error("Loader returned an invalid object:\n %s" % str(item)) |
---|
177 | data_error = True |
---|
178 | |
---|
179 | except: |
---|
180 | logging.error(sys.exc_value) |
---|
181 | any_error = True |
---|
182 | if any_error or error_message != "": |
---|
183 | if error_message == "": |
---|
184 | error = "Error: " + str(sys.exc_info()[1]) + "\n" |
---|
185 | error += "while loading Data: \n%s\n" % str(basename) |
---|
186 | error_message += "The data file you selected could not be loaded.\n" |
---|
187 | error_message += "Make sure the content of your file" |
---|
188 | error_message += " is properly formatted.\n\n" |
---|
189 | error_message += "When contacting the SasView team, mention the" |
---|
190 | error_message += " following:\n%s" % str(error) |
---|
191 | elif data_error: |
---|
192 | base_message = "Errors occurred while loading " |
---|
193 | base_message += "{0}\n".format(basename) |
---|
194 | base_message += "The data file loaded but with errors.\n" |
---|
195 | error_message = base_message + error_message |
---|
196 | else: |
---|
197 | error_message += "%s\n" % str(p_file) |
---|
198 | info = "error" |
---|
199 | |
---|
200 | if any_error or error_message: |
---|
201 | # self.loadUpdate(output=output, message=error_message, info=info) |
---|
202 | self.communicate.statusBarUpdateSignal.emit(error_message) |
---|
203 | |
---|
204 | else: |
---|
205 | message = "Loading Data Complete! " |
---|
206 | message += log_msg |
---|
207 | self.loadComplete(output=output, message=message) |
---|
208 | |
---|
209 | def getWlist(self): |
---|
210 | """ |
---|
211 | """ |
---|
212 | # Display the Qt Load File module |
---|
213 | cards = self.loader.get_wildcards() |
---|
214 | |
---|
215 | # get rid of the wx remnant in wildcards |
---|
216 | # TODO: modify sasview loader get_wildcards method, after merge, |
---|
217 | # so this kludge can be avoided |
---|
218 | new_cards = [] |
---|
219 | for item in cards: |
---|
220 | new_cards.append(item[:item.find("|")]) |
---|
221 | wlist = ';;'.join(new_cards) |
---|
222 | |
---|
223 | return wlist |
---|
224 | |
---|
225 | |
---|
226 | def loadComplete(self, output, message=""): |
---|
227 | """ |
---|
228 | Post message to status bar and update the data manager |
---|
229 | """ |
---|
230 | # Notify the manager of the new data available |
---|
231 | self.communicate.statusBarUpdateSignal.emit(message) |
---|
232 | self.communicate.fileDataReceivedSignal.emit(output) |
---|
233 | |
---|
234 | self.manager.add_data(data_list=output) |
---|
235 | |
---|
236 | def updateModel(self, data, p_file): |
---|
237 | """ |
---|
238 | """ |
---|
239 | # Structure of the model |
---|
240 | # checkbox + basename |
---|
241 | # |-------> Info |
---|
242 | # |----> Data.D object |
---|
243 | # |----> Title: |
---|
244 | # |----> Run: |
---|
245 | # |----> Type: |
---|
246 | # |----> Path: |
---|
247 | # |----> Process |
---|
248 | # |-----> process[0].name |
---|
249 | # |
---|
250 | |
---|
251 | # Top-level item: checkbox with label |
---|
252 | checkbox_item = QtGui.QStandardItem(True) |
---|
253 | checkbox_item.setCheckable(True) |
---|
254 | checkbox_item.setCheckState(QtCore.Qt.Checked) |
---|
255 | checkbox_item.setText(os.path.basename(p_file)) |
---|
256 | |
---|
257 | # Add "Info" item |
---|
258 | info_item = QtGui.QStandardItem("Info") |
---|
259 | |
---|
260 | # Add the actual Data1D/Data2D object |
---|
261 | object_item = QtGui.QStandardItem() |
---|
262 | object_item.setData(QtCore.QVariant(data)) |
---|
263 | |
---|
264 | # Add rows for display in the view |
---|
265 | self.addExtraRows(info_item, data) |
---|
266 | |
---|
267 | # Set info_item as the only child |
---|
268 | checkbox_item.setChild(0, info_item) |
---|
269 | |
---|
270 | # New row in the model |
---|
271 | self.model.appendRow(checkbox_item) |
---|
272 | |
---|
273 | # Don't show "empty" rows with data objects |
---|
274 | self.proxy.setFilterRegExp(r"[^()]") |
---|
275 | |
---|
276 | |
---|
277 | def addExtraRows(self, info_item, data): |
---|
278 | """ |
---|
279 | """ |
---|
280 | title_item = QtGui.QStandardItem("Title: " + data.title) |
---|
281 | run_item = QtGui.QStandardItem("Run: " + str(data.run)) |
---|
282 | type_item = QtGui.QStandardItem("Type: " + str(data.__class__.__name__)) |
---|
283 | path_item = QtGui.QStandardItem("Path: " + data.path) |
---|
284 | instr_item = QtGui.QStandardItem("Instrument: " + data.instrument) |
---|
285 | process_item = QtGui.QStandardItem("Process") |
---|
286 | if isinstance(data.process, list) and data.process: |
---|
287 | for process in data.process: |
---|
288 | process_date = process.date |
---|
289 | process_date_item = QtGui.QStandardItem("Date: " + process_date) |
---|
290 | process_item.appendRow(process_date_item) |
---|
291 | |
---|
292 | process_descr = process.description |
---|
293 | process_descr_item = QtGui.QStandardItem("Description: " + process_descr) |
---|
294 | process_item.appendRow(process_descr_item) |
---|
295 | |
---|
296 | process_name = process.name |
---|
297 | process_name_item = QtGui.QStandardItem("Name: " + process_name) |
---|
298 | process_item.appendRow(process_name_item) |
---|
299 | |
---|
300 | info_item.appendRow(title_item) |
---|
301 | info_item.appendRow(run_item) |
---|
302 | info_item.appendRow(type_item) |
---|
303 | info_item.appendRow(path_item) |
---|
304 | info_item.appendRow(instr_item) |
---|
305 | info_item.appendRow(process_item) |
---|
306 | |
---|
307 | |
---|
308 | if __name__ == "__main__": |
---|
309 | app = QtGui.QApplication([]) |
---|
310 | dlg = DataExplorerWindow() |
---|
311 | dlg.show() |
---|
312 | sys.exit(app.exec_()) |
---|