GuiUtils.py @ 7d077d1

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalc

Last change on this file since 7d077d1 was 7d077d1, checked in by Piotr Rozyczko <rozyczko@…>, 7 years ago
When chart is shown - react and show changes to Qmodel
Property mode set to `100644`
File size: 24.9 KB

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1	"""
2	Global defaults and various utility functions usable by the general GUI
3	"""
4
5	import os
6	import sys
7	import imp
8	import warnings
9	import webbrowser
10	import urlparse
11
12	warnings.simplefilter("ignore")
13	import logging
14
15	from PyQt4 import QtCore
16	from PyQt4 import QtGui
17
18	# Translate event handlers
19	#from sas.sasgui.guiframe.events import EVT_CATEGORY
20	#from sas.sasgui.guiframe.events import EVT_STATUS
21	#from sas.sasgui.guiframe.events import EVT_APPEND_BOOKMARK
22	#from sas.sasgui.guiframe.events import EVT_PANEL_ON_FOCUS
23	#from sas.sasgui.guiframe.events import EVT_NEW_LOAD_DATA
24	#from sas.sasgui.guiframe.events import EVT_NEW_COLOR
25	#from sas.sasgui.guiframe.events import StatusEvent
26	#from sas.sasgui.guiframe.events import NewPlotEvent
27
28	from periodictable import formula as Formula
29
30	from sas.sasgui.plottools import transform
31	from sas.sasgui.plottools.convert_units import convert_unit
32	from sas.sasgui.guiframe.dataFitting import Data1D
33	from sas.sasgui.guiframe.dataFitting import Data2D
34	from sas.sascalc.dataloader.loader import Loader
35
36
37	def get_app_dir():
38	"""
39	The application directory is the one where the default custom_config.py
40	file resides.
41
42	:returns: app_path - the path to the applicatin directory
43	"""
44	# First, try the directory of the executable we are running
45	app_path = sys.path[0]
46	if os.path.isfile(app_path):
47	app_path = os.path.dirname(app_path)
48	if os.path.isfile(os.path.join(app_path, "custom_config.py")):
49	app_path = os.path.abspath(app_path)
50	#logging.info("Using application path: %s", app_path)
51	return app_path
52
53	# Next, try the current working directory
54	if os.path.isfile(os.path.join(os.getcwd(), "custom_config.py")):
55	#logging.info("Using application path: %s", os.getcwd())
56	return os.path.abspath(os.getcwd())
57
58	# Finally, try the directory of the sasview module
59	# TODO: gui_manager will have to know about sasview until we
60	# clean all these module variables and put them into a config class
61	# that can be passed by sasview.py.
62	#logging.info(sys.executable)
63	#logging.info(str(sys.argv))
64	from sas import sasview as sasview
65	app_path = os.path.dirname(sasview.__file__)
66	#logging.info("Using application path: %s", app_path)
67	return app_path
68
69	def get_user_directory():
70	"""
71	Returns the user's home directory
72	"""
73	userdir = os.path.join(os.path.expanduser("~"), ".sasview")
74	if not os.path.isdir(userdir):
75	os.makedirs(userdir)
76	return userdir
77
78	def _find_local_config(confg_file, path):
79	"""
80	Find configuration file for the current application
81	"""
82	config_module = None
83	fObj = None
84	try:
85	fObj, path_config, descr = imp.find_module(confg_file, [path])
86	config_module = imp.load_module(confg_file, fObj, path_config, descr)
87	except ImportError:
88	pass
89	#logging.error("Error loading %s/%s: %s" % (path, confg_file, sys.exc_value))
90	finally:
91	if fObj is not None:
92	fObj.close()
93	#logging.info("GuiManager loaded %s/%s" % (path, confg_file))
94	return config_module
95
96	# Get APP folder
97	PATH_APP = get_app_dir()
98	DATAPATH = PATH_APP
99
100	# GUI always starts from the App folder
101	#os.chdir(PATH_APP)
102	# Read in the local config, which can either be with the main
103	# application or in the installation directory
104	config = _find_local_config('local_config', PATH_APP)
105
106	if config is None:
107	config = _find_local_config('local_config', os.getcwd())
108	if config is None:
109	# Didn't find local config, load the default
110	import sas.sasgui.guiframe.config as config
111	#logging.info("using default local_config")
112	else:
113	pass
114	#logging.info("found local_config in %s", os.getcwd())
115	else:
116	pass
117	#logging.info("found local_config in %s", PATH_APP)
118
119
120	from sas.sasgui.guiframe.customdir import SetupCustom
121	c_conf_dir = SetupCustom().setup_dir(PATH_APP)
122	custom_config = _find_local_config('custom_config', c_conf_dir)
123	if custom_config is None:
124	custom_config = _find_local_config('custom_config', os.getcwd())
125	if custom_config is None:
126	msgConfig = "Custom_config file was not imported"
127	#logging.info(msgConfig)
128	else:
129	pass
130	#logging.info("using custom_config in %s", os.getcwd())
131	else:
132	pass
133	#logging.info("using custom_config from %s", c_conf_dir)
134
135	#read some constants from config
136	APPLICATION_STATE_EXTENSION = config.APPLICATION_STATE_EXTENSION
137	APPLICATION_NAME = config.__appname__
138	SPLASH_SCREEN_PATH = config.SPLASH_SCREEN_PATH
139	WELCOME_PANEL_ON = config.WELCOME_PANEL_ON
140	SPLASH_SCREEN_WIDTH = config.SPLASH_SCREEN_WIDTH
141	SPLASH_SCREEN_HEIGHT = config.SPLASH_SCREEN_HEIGHT
142	SS_MAX_DISPLAY_TIME = config.SS_MAX_DISPLAY_TIME
143	if not WELCOME_PANEL_ON:
144	WELCOME_PANEL_SHOW = False
145	else:
146	WELCOME_PANEL_SHOW = True
147	try:
148	DATALOADER_SHOW = custom_config.DATALOADER_SHOW
149	TOOLBAR_SHOW = custom_config.TOOLBAR_SHOW
150	FIXED_PANEL = custom_config.FIXED_PANEL
151	if WELCOME_PANEL_ON:
152	WELCOME_PANEL_SHOW = custom_config.WELCOME_PANEL_SHOW
153	PLOPANEL_WIDTH = custom_config.PLOPANEL_WIDTH
154	DATAPANEL_WIDTH = custom_config.DATAPANEL_WIDTH
155	GUIFRAME_WIDTH = custom_config.GUIFRAME_WIDTH
156	GUIFRAME_HEIGHT = custom_config.GUIFRAME_HEIGHT
157	CONTROL_WIDTH = custom_config.CONTROL_WIDTH
158	CONTROL_HEIGHT = custom_config.CONTROL_HEIGHT
159	DEFAULT_PERSPECTIVE = custom_config.DEFAULT_PERSPECTIVE
160	CLEANUP_PLOT = custom_config.CLEANUP_PLOT
161	# custom open_path
162	open_folder = custom_config.DEFAULT_OPEN_FOLDER
163	if open_folder != None and os.path.isdir(open_folder):
164	DEFAULT_OPEN_FOLDER = os.path.abspath(open_folder)
165	else:
166	DEFAULT_OPEN_FOLDER = PATH_APP
167	except AttributeError:
168	DATALOADER_SHOW = True
169	TOOLBAR_SHOW = True
170	FIXED_PANEL = True
171	WELCOME_PANEL_SHOW = False
172	PLOPANEL_WIDTH = config.PLOPANEL_WIDTH
173	DATAPANEL_WIDTH = config.DATAPANEL_WIDTH
174	GUIFRAME_WIDTH = config.GUIFRAME_WIDTH
175	GUIFRAME_HEIGHT = config.GUIFRAME_HEIGHT
176	CONTROL_WIDTH = -1
177	CONTROL_HEIGHT = -1
178	DEFAULT_PERSPECTIVE = None
179	CLEANUP_PLOT = False
180	DEFAULT_OPEN_FOLDER = PATH_APP
181
182	DEFAULT_STYLE = config.DEFAULT_STYLE
183
184	PLUGIN_STATE_EXTENSIONS = config.PLUGIN_STATE_EXTENSIONS
185	OPEN_SAVE_MENU = config.OPEN_SAVE_PROJECT_MENU
186	VIEW_MENU = config.VIEW_MENU
187	EDIT_MENU = config.EDIT_MENU
188	extension_list = []
189	if APPLICATION_STATE_EXTENSION is not None:
190	extension_list.append(APPLICATION_STATE_EXTENSION)
191	EXTENSIONS = PLUGIN_STATE_EXTENSIONS + extension_list
192	try:
193	PLUGINS_WLIST = '\|'.join(config.PLUGINS_WLIST)
194	except AttributeError:
195	PLUGINS_WLIST = ''
196	APPLICATION_WLIST = config.APPLICATION_WLIST
197	IS_WIN = True
198	IS_LINUX = False
199	CLOSE_SHOW = True
200	TIME_FACTOR = 2
201	NOT_SO_GRAPH_LIST = ["BoxSum"]
202
203	class Communicate(QtCore.QObject):
204	"""
205	Utility class for tracking of the Qt signals
206	"""
207	# File got successfully read
208	fileReadSignal = QtCore.pyqtSignal(list)
209
210	# Open File returns "list" of paths
211	fileDataReceivedSignal = QtCore.pyqtSignal(dict)
212
213	# Update Main window status bar with "str"
214	# Old "StatusEvent"
215	statusBarUpdateSignal = QtCore.pyqtSignal(str)
216
217	# Send data to the current perspective
218	updatePerspectiveWithDataSignal = QtCore.pyqtSignal(list)
219
220	# New data in current perspective
221	updateModelFromPerspectiveSignal = QtCore.pyqtSignal(QtGui.QStandardItem)
222
223	# New theory data in current perspective
224	updateTheoryFromPerspectiveSignal = QtCore.pyqtSignal(QtGui.QStandardItem)
225
226	# New plot requested from the GUI manager
227	# Old "NewPlotEvent"
228	plotRequestedSignal = QtCore.pyqtSignal(str)
229
230	# Plot update requested from a perspective
231	plotUpdateSignal = QtCore.pyqtSignal(list)
232
233	# Progress bar update value
234	progressBarUpdateSignal = QtCore.pyqtSignal(int)
235
236	# Workspace charts added/removed
237	activeGraphsSignal = QtCore.pyqtSignal(list)
238
239	# Current workspace chart's name changed
240	activeGraphName = QtCore.pyqtSignal(tuple)
241
242	# Current perspective changed
243	perspectiveChangedSignal = QtCore.pyqtSignal(str)
244
245
246	def updateModelItemWithPlot(item, update_data, name=""):
247	"""
248	Adds a checkboxed row named "name" to QStandardItem
249	Adds QVariant 'update_data' to that row.
250	"""
251	assert isinstance(item, QtGui.QStandardItem)
252	assert isinstance(update_data, QtCore.QVariant)
253	py_update_data = update_data.toPyObject()
254
255	# Check if data with the same ID is already present
256	for index in range(item.rowCount()):
257	plot_item = item.child(index)
258	if plot_item.isCheckable():
259	plot_data = plot_item.child(0).data().toPyObject()
260	if plot_data.id is not None and plot_data.id == py_update_data.id:
261	# replace data section in item
262	plot_item.child(0).setData(update_data)
263	plot_item.setText(name)
264	# Force redisplay
265	return
266
267	# Create the new item
268	checkbox_item = createModelItemWithPlot(update_data, name)
269
270	# Append the new row to the main item
271	item.appendRow(checkbox_item)
272
273	def createModelItemWithPlot(update_data, name=""):
274	"""
275	Creates a checkboxed QStandardItem named "name"
276	Adds QVariant 'update_data' to that row.
277	"""
278	assert isinstance(update_data, QtCore.QVariant)
279	py_update_data = update_data.toPyObject()
280
281	checkbox_item = QtGui.QStandardItem()
282	checkbox_item.setCheckable(True)
283	checkbox_item.setCheckState(QtCore.Qt.Checked)
284	checkbox_item.setText(name)
285
286	# Add "Info" item
287	if isinstance(py_update_data, (Data1D, Data2D)):
288	# If Data1/2D added - extract Info from it
289	info_item = infoFromData(py_update_data)
290	else:
291	# otherwise just add a naked item
292	info_item = QtGui.QStandardItem("Info")
293
294	# Add the actual Data1D/Data2D object
295	object_item = QtGui.QStandardItem()
296	object_item.setData(update_data)
297
298	# Set the data object as the first child
299	checkbox_item.setChild(0, object_item)
300
301	# Set info_item as the second child
302	checkbox_item.setChild(1, info_item)
303
304	# And return the newly created item
305	return checkbox_item
306
307	def updateModelItem(item, update_data, name=""):
308	"""
309	Adds a simple named child to QStandardItem
310	"""
311	assert isinstance(item, QtGui.QStandardItem)
312	assert isinstance(update_data, list)
313
314	# Add the actual Data1D/Data2D object
315	object_item = QtGui.QStandardItem()
316	object_item.setText(name)
317	object_item.setData(QtCore.QVariant(update_data))
318
319	# Append the new row to the main item
320	item.appendRow(object_item)
321
322
323	def plotsFromCheckedItems(model_item):
324	"""
325	Returns the list of plots for items in the model which are checked
326	"""
327	assert isinstance(model_item, QtGui.QStandardItemModel)
328
329	plot_data = []
330	# Iterate over model looking for items with checkboxes
331	for index in range(model_item.rowCount()):
332	item = model_item.item(index)
333	if item.isCheckable() and item.checkState() == QtCore.Qt.Checked:
334	# TODO: assure item type is correct (either data1/2D or Plotter)
335	plot_data.append((item, item.child(0).data().toPyObject()))
336	# Going 1 level deeper only
337	for index_2 in range(item.rowCount()):
338	item_2 = item.child(index_2)
339	if item_2 and item_2.isCheckable() and item_2.checkState() == QtCore.Qt.Checked:
340	# TODO: assure item type is correct (either data1/2D or Plotter)
341	plot_data.append((item_2, item_2.child(0).data().toPyObject()))
342
343	return plot_data
344
345	def infoFromData(data):
346	"""
347	Given Data1D/Data2D object, extract relevant Info elements
348	and add them to a model item
349	"""
350	assert isinstance(data, (Data1D, Data2D))
351
352	info_item = QtGui.QStandardItem("Info")
353
354	title_item = QtGui.QStandardItem("Title: " + data.title)
355	info_item.appendRow(title_item)
356	run_item = QtGui.QStandardItem("Run: " + str(data.run))
357	info_item.appendRow(run_item)
358	type_item = QtGui.QStandardItem("Type: " + str(data.__class__.__name__))
359	info_item.appendRow(type_item)
360
361	if data.path:
362	path_item = QtGui.QStandardItem("Path: " + data.path)
363	info_item.appendRow(path_item)
364
365	if data.instrument:
366	instr_item = QtGui.QStandardItem("Instrument: " + data.instrument)
367	info_item.appendRow(instr_item)
368
369	process_item = QtGui.QStandardItem("Process")
370	if isinstance(data.process, list) and data.process:
371	for process in data.process:
372	process_date = process.date
373	process_date_item = QtGui.QStandardItem("Date: " + process_date)
374	process_item.appendRow(process_date_item)
375
376	process_descr = process.description
377	process_descr_item = QtGui.QStandardItem("Description: " + process_descr)
378	process_item.appendRow(process_descr_item)
379
380	process_name = process.name
381	process_name_item = QtGui.QStandardItem("Name: " + process_name)
382	process_item.appendRow(process_name_item)
383
384	info_item.appendRow(process_item)
385
386	return info_item
387
388	def openLink(url):
389	"""
390	Open a URL in an external browser.
391	Check the URL first, though.
392	"""
393	parsed_url = urlparse.urlparse(url)
394	if parsed_url.scheme:
395	webbrowser.open(url)
396	else:
397	msg = "Attempt at opening an invalid URL"
398	raise AttributeError, msg
399
400	def retrieveData1d(data):
401	"""
402	Retrieve 1D data from file and construct its text
403	representation
404	"""
405	if not isinstance(data, Data1D):
406	msg = "Incorrect type passed to retrieveData1d"
407	raise AttributeError, msg
408	try:
409	xmin = min(data.x)
410	ymin = min(data.y)
411	except:
412	msg = "Unable to find min/max of \n data named %s" % \
413	data.filename
414	#logging.error(msg)
415	raise ValueError, msg
416
417	text = data.__str__()
418	text += 'Data Min Max:\n'
419	text += 'X_min = %s: X_max = %s\n' % (xmin, max(data.x))
420	text += 'Y_min = %s: Y_max = %s\n' % (ymin, max(data.y))
421	if data.dy != None:
422	text += 'dY_min = %s: dY_max = %s\n' % (min(data.dy), max(data.dy))
423	text += '\nData Points:\n'
424	x_st = "X"
425	for index in range(len(data.x)):
426	if data.dy != None and len(data.dy) > index:
427	dy_val = data.dy[index]
428	else:
429	dy_val = 0.0
430	if data.dx != None and len(data.dx) > index:
431	dx_val = data.dx[index]
432	else:
433	dx_val = 0.0
434	if data.dxl != None and len(data.dxl) > index:
435	if index == 0:
436	x_st = "Xl"
437	dx_val = data.dxl[index]
438	elif data.dxw != None and len(data.dxw) > index:
439	if index == 0:
440	x_st = "Xw"
441	dx_val = data.dxw[index]
442
443	if index == 0:
444	text += "<index> \t<X> \t<Y> \t<dY> \t<d%s>\n" % x_st
445	text += "%s \t%s \t%s \t%s \t%s\n" % (index,
446	data.x[index],
447	data.y[index],
448	dy_val,
449	dx_val)
450	return text
451
452	def retrieveData2d(data):
453	"""
454	Retrieve 2D data from file and construct its text
455	representation
456	"""
457	if not isinstance(data, Data2D):
458	msg = "Incorrect type passed to retrieveData2d"
459	raise AttributeError, msg
460
461	text = data.__str__()
462	text += 'Data Min Max:\n'
463	text += 'I_min = %s\n' % min(data.data)
464	text += 'I_max = %s\n\n' % max(data.data)
465	text += 'Data (First 2501) Points:\n'
466	text += 'Data columns include err(I).\n'
467	text += 'ASCII data starts here.\n'
468	text += "<index> \t<Qx> \t<Qy> \t<I> \t<dI> \t<dQparal> \t<dQperp>\n"
469	di_val = 0.0
470	dx_val = 0.0
471	dy_val = 0.0
472	len_data = len(data.qx_data)
473	for index in xrange(0, len_data):
474	x_val = data.qx_data[index]
475	y_val = data.qy_data[index]
476	i_val = data.data[index]
477	if data.err_data != None:
478	di_val = data.err_data[index]
479	if data.dqx_data != None:
480	dx_val = data.dqx_data[index]
481	if data.dqy_data != None:
482	dy_val = data.dqy_data[index]
483
484	text += "%s \t%s \t%s \t%s \t%s \t%s \t%s\n" % (index,
485	x_val,
486	y_val,
487	i_val,
488	di_val,
489	dx_val,
490	dy_val)
491	# Takes too long time for typical data2d: Break here
492	if index >= 2500:
493	text += ".............\n"
494	break
495
496	return text
497
498	def onTXTSave(data, path):
499	"""
500	Save file as formatted txt
501	"""
502	with open(path,'w') as out:
503	has_errors = True
504	if data.dy == None or data.dy == []:
505	has_errors = False
506	# Sanity check
507	if has_errors:
508	try:
509	if len(data.y) != len(data.dy):
510	has_errors = False
511	except:
512	has_errors = False
513	if has_errors:
514	if data.dx != None and data.dx != []:
515	out.write("<X> <Y> <dY> <dX>\n")
516	else:
517	out.write("<X> <Y> <dY>\n")
518	else:
519	out.write("<X> <Y>\n")
520
521	for i in range(len(data.x)):
522	if has_errors:
523	if data.dx != None and data.dx != []:
524	if data.dx[i] != None:
525	out.write("%g %g %g %g\n" % (data.x[i],
526	data.y[i],
527	data.dy[i],
528	data.dx[i]))
529	else:
530	out.write("%g %g %g\n" % (data.x[i],
531	data.y[i],
532	data.dy[i]))
533	else:
534	out.write("%g %g %g\n" % (data.x[i],
535	data.y[i],
536	data.dy[i]))
537	else:
538	out.write("%g %g\n" % (data.x[i],
539	data.y[i]))
540
541	def saveData1D(data):
542	"""
543	Save 1D data points
544	"""
545	default_name = os.path.basename(data.filename)
546	default_name, extension = os.path.splitext(default_name)
547	default_name += "_out" + extension
548
549	wildcard = "Text files (*.txt);;"\
550	"CanSAS 1D files(*.xml)"
551	kwargs = {
552	'caption' : 'Save As',
553	'directory' : default_name,
554	'filter' : wildcard,
555	'parent' : None,
556	}
557	# Query user for filename.
558	filename = QtGui.QFileDialog.getSaveFileName(**kwargs)
559
560	# User cancelled.
561	if not filename:
562	return
563
564	filename = str(filename)
565
566	#Instantiate a loader
567	loader = Loader()
568	if os.path.splitext(filename)[1].lower() == ".txt":
569	onTXTSave(data, filename)
570	if os.path.splitext(filename)[1].lower() == ".xml":
571	loader.save(filename, data, ".xml")
572
573	def saveData2D(data):
574	"""
575	Save data2d dialog
576	"""
577	default_name = os.path.basename(data.filename)
578	default_name, _ = os.path.splitext(default_name)
579	ext_format = ".dat"
580	default_name += "_out" + ext_format
581
582	wildcard = "IGOR/DAT 2D file in Q_map (*.dat)"
583	kwargs = {
584	'caption' : 'Save As',
585	'directory' : default_name,
586	'filter' : wildcard,
587	'parent' : None,
588	}
589	# Query user for filename.
590	filename = QtGui.QFileDialog.getSaveFileName(**kwargs)
591
592	# User cancelled.
593	if not filename:
594	return
595	filename = str(filename)
596	#Instantiate a loader
597	loader = Loader()
598
599	if os.path.splitext(filename)[1].lower() == ext_format:
600	loader.save(filename, data, ext_format)
601
602	class FormulaValidator(QtGui.QValidator):
603	def __init__(self, parent=None):
604	super(FormulaValidator, self).__init__(parent)
605
606	def validate(self, input, pos):
607	try:
608	Formula(str(input))
609	self._setStyleSheet("")
610	return QtGui.QValidator.Acceptable, pos
611
612	except Exception as e:
613	self._setStyleSheet("background-color:pink;")
614	return QtGui.QValidator.Intermediate, pos
615
616	def _setStyleSheet(self, value):
617	try:
618	if self.parent():
619	self.parent().setStyleSheet(value)
620	except:
621	pass
622
623	def xyTransform(data, xLabel="", yLabel=""):
624	"""
625	Transforms x and y in View and set the scale
626	"""
627	# Changing the scale might be incompatible with
628	# currently displayed data (for instance, going
629	# from ln to log when all plotted values have
630	# negative natural logs).
631	# Go linear and only change the scale at the end.
632	xscale = 'linear'
633	yscale = 'linear'
634	# Local data is either 1D or 2D
635	if data.id == 'fit':
636	return
637
638	# control axis labels from the panel itself
639	yname, yunits = data.get_yaxis()
640	xname, xunits = data.get_xaxis()
641
642	# Goes through all possible scales
643	# self.x_label is already wrapped with Latex "$", so using the argument
644
645	# X
646	if xLabel == "x":
647	data.transformX(transform.toX, transform.errToX)
648	xLabel = "%s(%s)" % (xname, xunits)
649	if xLabel == "x^(2)":
650	data.transformX(transform.toX2, transform.errToX2)
651	xunits = convert_unit(2, xunits)
652	xLabel = "%s^{2}(%s)" % (xname, xunits)
653	if xLabel == "x^(4)":
654	data.transformX(transform.toX4, transform.errToX4)
655	xunits = convert_unit(4, xunits)
656	xLabel = "%s^{4}(%s)" % (xname, xunits)
657	if xLabel == "ln(x)":
658	data.transformX(transform.toLogX, transform.errToLogX)
659	xLabel = "\ln{(%s)}(%s)" % (xname, xunits)
660	if xLabel == "log10(x)":
661	data.transformX(transform.toX_pos, transform.errToX_pos)
662	xscale = 'log'
663	xLabel = "%s(%s)" % (xname, xunits)
664	if xLabel == "log10(x^(4))":
665	data.transformX(transform.toX4, transform.errToX4)
666	xunits = convert_unit(4, xunits)
667	xLabel = "%s^{4}(%s)" % (xname, xunits)
668	xscale = 'log'
669
670	# Y
671	if yLabel == "ln(y)":
672	data.transformY(transform.toLogX, transform.errToLogX)
673	yLabel = "\ln{(%s)}(%s)" % (yname, yunits)
674	if yLabel == "y":
675	data.transformY(transform.toX, transform.errToX)
676	yLabel = "%s(%s)" % (yname, yunits)
677	if yLabel == "log10(y)":
678	data.transformY(transform.toX_pos, transform.errToX_pos)
679	yscale = 'log'
680	yLabel = "%s(%s)" % (yname, yunits)
681	if yLabel == "y^(2)":
682	data.transformY(transform.toX2, transform.errToX2)
683	yunits = convert_unit(2, yunits)
684	yLabel = "%s^{2}(%s)" % (yname, yunits)
685	if yLabel == "1/y":
686	data.transformY(transform.toOneOverX, transform.errOneOverX)
687	yunits = convert_unit(-1, yunits)
688	yLabel = "1/%s(%s)" % (yname, yunits)
689	if yLabel == "y*x^(2)":
690	data.transformY(transform.toYX2, transform.errToYX2)
691	xunits = convert_unit(2, xunits)
692	yLabel = "%s \ \ %s^{2}(%s%s)" % (yname, xname, yunits, xunits)
693	if yLabel == "y*x^(4)":
694	data.transformY(transform.toYX4, transform.errToYX4)
695	xunits = convert_unit(4, xunits)
696	yLabel = "%s \ \ %s^{4}(%s%s)" % (yname, xname, yunits, xunits)
697	if yLabel == "1/sqrt(y)":
698	data.transformY(transform.toOneOverSqrtX,
699	transform.errOneOverSqrtX)
700	yunits = convert_unit(-0.5, yunits)
701	yLabel = "1/\sqrt{%s}(%s)" % (yname, yunits)
702	if yLabel == "ln(y*x)":
703	data.transformY(transform.toLogXY, transform.errToLogXY)
704	yLabel = "\ln{(%s \ \ %s)}(%s%s)" % (yname, xname, yunits, xunits)
705	if yLabel == "ln(y*x^(2))":
706	data.transformY(transform.toLogYX2, transform.errToLogYX2)
707	xunits = convert_unit(2, xunits)
708	yLabel = "\ln (%s \ \ %s^{2})(%s%s)" % (yname, xname, yunits, xunits)
709	if yLabel == "ln(y*x^(4))":
710	data.transformY(transform.toLogYX4, transform.errToLogYX4)
711	xunits = convert_unit(4, xunits)
712	yLabel = "\ln (%s \ \ %s^{4})(%s%s)" % (yname, xname, yunits, xunits)
713	if yLabel == "log10(y*x^(4))":
714	data.transformY(transform.toYX4, transform.errToYX4)
715	xunits = convert_unit(4, xunits)
716	yscale = 'log'
717	yLabel = "%s \ \ %s^{4}(%s%s)" % (yname, xname, yunits, xunits)
718
719	# Perform the transformation of data in data1d->View
720	data.transformView()
721
722	return (xLabel, yLabel, xscale, yscale)
723
724	def dataFromItem(item):
725	"""
726	Retrieve Data1D/2D component from QStandardItem.
727	The assumption - data stored in SasView standard, in child 0
728	"""
729	return item.child(0).data().toPyObject()
730
731	def formatNumber(value, high=False):
732	"""
733	Return a float in a standardized, human-readable formatted string.
734	This is used to output readable (e.g. x.xxxe-y) values to the panel.
735	"""
736	try:
737	value = float(value)
738	except:
739	output = "NaN"
740	return output.lstrip().rstrip()
741
742	if high:
743	output = "%-6.4g" % value
744
745	else:
746	output = "%-5.3g" % value
747	return output.lstrip().rstrip()

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SasView

source: sasview/src/sas/qtgui/GuiUtils.py @ 7d077d1

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