GuiUtils.py @ 83eb5208

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 83eb5208 was 83eb5208, checked in by Piotr Rozyczko <rozyczko@…>, 7 years ago
Putting files in more ordered fashion
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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	except ValueError:
91	print "Value error"
92	pass
93	finally:
94	if fObj is not None:
95	fObj.close()
96	#logging.info("GuiManager loaded %s/%s" % (path, confg_file))
97	return config_module
98
99	# Get APP folder
100	PATH_APP = get_app_dir()
101	DATAPATH = PATH_APP
102
103	# GUI always starts from the App folder
104	#os.chdir(PATH_APP)
105	# Read in the local config, which can either be with the main
106	# application or in the installation directory
107	config = _find_local_config('local_config', PATH_APP)
108
109	if config is None:
110	config = _find_local_config('local_config', os.getcwd())
111	if config is None:
112	# Didn't find local config, load the default
113	import sas.sasgui.guiframe.config as config
114	#logging.info("using default local_config")
115	else:
116	pass
117	#logging.info("found local_config in %s", os.getcwd())
118	else:
119	pass
120	#logging.info("found local_config in %s", PATH_APP)
121
122	from sas.sasgui.guiframe.customdir import SetupCustom
123	c_conf_dir = SetupCustom().setup_dir(PATH_APP)
124
125	custom_config = _find_local_config('custom_config', c_conf_dir)
126	if custom_config is None:
127	custom_config = _find_local_config('custom_config', os.getcwd())
128	if custom_config is None:
129	msgConfig = "Custom_config file was not imported"
130	#logging.info(msgConfig)
131	else:
132	pass
133	#logging.info("using custom_config in %s", os.getcwd())
134	else:
135	pass
136	#logging.info("using custom_config from %s", c_conf_dir)
137
138	#read some constants from config
139	APPLICATION_STATE_EXTENSION = config.APPLICATION_STATE_EXTENSION
140	APPLICATION_NAME = config.__appname__
141	SPLASH_SCREEN_PATH = config.SPLASH_SCREEN_PATH
142	WELCOME_PANEL_ON = config.WELCOME_PANEL_ON
143	SPLASH_SCREEN_WIDTH = config.SPLASH_SCREEN_WIDTH
144	SPLASH_SCREEN_HEIGHT = config.SPLASH_SCREEN_HEIGHT
145	SS_MAX_DISPLAY_TIME = config.SS_MAX_DISPLAY_TIME
146	if not WELCOME_PANEL_ON:
147	WELCOME_PANEL_SHOW = False
148	else:
149	WELCOME_PANEL_SHOW = True
150	try:
151	DATALOADER_SHOW = custom_config.DATALOADER_SHOW
152	TOOLBAR_SHOW = custom_config.TOOLBAR_SHOW
153	FIXED_PANEL = custom_config.FIXED_PANEL
154	if WELCOME_PANEL_ON:
155	WELCOME_PANEL_SHOW = custom_config.WELCOME_PANEL_SHOW
156	PLOPANEL_WIDTH = custom_config.PLOPANEL_WIDTH
157	DATAPANEL_WIDTH = custom_config.DATAPANEL_WIDTH
158	GUIFRAME_WIDTH = custom_config.GUIFRAME_WIDTH
159	GUIFRAME_HEIGHT = custom_config.GUIFRAME_HEIGHT
160	CONTROL_WIDTH = custom_config.CONTROL_WIDTH
161	CONTROL_HEIGHT = custom_config.CONTROL_HEIGHT
162	DEFAULT_PERSPECTIVE = custom_config.DEFAULT_PERSPECTIVE
163	CLEANUP_PLOT = custom_config.CLEANUP_PLOT
164	# custom open_path
165	open_folder = custom_config.DEFAULT_OPEN_FOLDER
166	if open_folder != None and os.path.isdir(open_folder):
167	DEFAULT_OPEN_FOLDER = os.path.abspath(open_folder)
168	else:
169	DEFAULT_OPEN_FOLDER = PATH_APP
170	except AttributeError:
171	DATALOADER_SHOW = True
172	TOOLBAR_SHOW = True
173	FIXED_PANEL = True
174	WELCOME_PANEL_SHOW = False
175	PLOPANEL_WIDTH = config.PLOPANEL_WIDTH
176	DATAPANEL_WIDTH = config.DATAPANEL_WIDTH
177	GUIFRAME_WIDTH = config.GUIFRAME_WIDTH
178	GUIFRAME_HEIGHT = config.GUIFRAME_HEIGHT
179	CONTROL_WIDTH = -1
180	CONTROL_HEIGHT = -1
181	DEFAULT_PERSPECTIVE = None
182	CLEANUP_PLOT = False
183	DEFAULT_OPEN_FOLDER = PATH_APP
184
185	DEFAULT_STYLE = config.DEFAULT_STYLE
186
187	PLUGIN_STATE_EXTENSIONS = config.PLUGIN_STATE_EXTENSIONS
188	OPEN_SAVE_MENU = config.OPEN_SAVE_PROJECT_MENU
189	VIEW_MENU = config.VIEW_MENU
190	EDIT_MENU = config.EDIT_MENU
191	extension_list = []
192	if APPLICATION_STATE_EXTENSION is not None:
193	extension_list.append(APPLICATION_STATE_EXTENSION)
194	EXTENSIONS = PLUGIN_STATE_EXTENSIONS + extension_list
195	try:
196	PLUGINS_WLIST = '\|'.join(config.PLUGINS_WLIST)
197	except AttributeError:
198	PLUGINS_WLIST = ''
199	APPLICATION_WLIST = config.APPLICATION_WLIST
200	IS_WIN = True
201	IS_LINUX = False
202	CLOSE_SHOW = True
203	TIME_FACTOR = 2
204	NOT_SO_GRAPH_LIST = ["BoxSum"]
205
206	class Communicate(QtCore.QObject):
207	"""
208	Utility class for tracking of the Qt signals
209	"""
210	# File got successfully read
211	fileReadSignal = QtCore.pyqtSignal(list)
212
213	# Open File returns "list" of paths
214	fileDataReceivedSignal = QtCore.pyqtSignal(dict)
215
216	# Update Main window status bar with "str"
217	# Old "StatusEvent"
218	statusBarUpdateSignal = QtCore.pyqtSignal(str)
219
220	# Send data to the current perspective
221	updatePerspectiveWithDataSignal = QtCore.pyqtSignal(list)
222
223	# New data in current perspective
224	updateModelFromPerspectiveSignal = QtCore.pyqtSignal(QtGui.QStandardItem)
225
226	# New theory data in current perspective
227	updateTheoryFromPerspectiveSignal = QtCore.pyqtSignal(QtGui.QStandardItem)
228
229	# New plot requested from the GUI manager
230	# Old "NewPlotEvent"
231	plotRequestedSignal = QtCore.pyqtSignal(str)
232
233	# Plot update requested from a perspective
234	plotUpdateSignal = QtCore.pyqtSignal(list)
235
236	# Progress bar update value
237	progressBarUpdateSignal = QtCore.pyqtSignal(int)
238
239	# Workspace charts added/removed
240	activeGraphsSignal = QtCore.pyqtSignal(list)
241
242	# Current workspace chart's name changed
243	activeGraphName = QtCore.pyqtSignal(tuple)
244
245	# Current perspective changed
246	perspectiveChangedSignal = QtCore.pyqtSignal(str)
247
248
249	def updateModelItemWithPlot(item, update_data, name=""):
250	"""
251	Adds a checkboxed row named "name" to QStandardItem
252	Adds QVariant 'update_data' to that row.
253	"""
254	assert isinstance(item, QtGui.QStandardItem)
255	assert isinstance(update_data, QtCore.QVariant)
256	py_update_data = update_data.toPyObject()
257
258	# Check if data with the same ID is already present
259	for index in range(item.rowCount()):
260	plot_item = item.child(index)
261	if plot_item.isCheckable():
262	plot_data = plot_item.child(0).data().toPyObject()
263	if plot_data.id is not None and plot_data.id == py_update_data.id:
264	# replace data section in item
265	plot_item.child(0).setData(update_data)
266	plot_item.setText(name)
267	# Force redisplay
268	return
269
270	# Create the new item
271	checkbox_item = createModelItemWithPlot(update_data, name)
272
273	# Append the new row to the main item
274	item.appendRow(checkbox_item)
275
276	def createModelItemWithPlot(update_data, name=""):
277	"""
278	Creates a checkboxed QStandardItem named "name"
279	Adds QVariant 'update_data' to that row.
280	"""
281	assert isinstance(update_data, QtCore.QVariant)
282	py_update_data = update_data.toPyObject()
283
284	checkbox_item = QtGui.QStandardItem()
285	checkbox_item.setCheckable(True)
286	checkbox_item.setCheckState(QtCore.Qt.Checked)
287	checkbox_item.setText(name)
288
289	# Add "Info" item
290	if isinstance(py_update_data, (Data1D, Data2D)):
291	# If Data1/2D added - extract Info from it
292	info_item = infoFromData(py_update_data)
293	else:
294	# otherwise just add a naked item
295	info_item = QtGui.QStandardItem("Info")
296
297	# Add the actual Data1D/Data2D object
298	object_item = QtGui.QStandardItem()
299	object_item.setData(update_data)
300
301	# Set the data object as the first child
302	checkbox_item.setChild(0, object_item)
303
304	# Set info_item as the second child
305	checkbox_item.setChild(1, info_item)
306
307	# And return the newly created item
308	return checkbox_item
309
310	def updateModelItem(item, update_data, name=""):
311	"""
312	Adds a simple named child to QStandardItem
313	"""
314	assert isinstance(item, QtGui.QStandardItem)
315	assert isinstance(update_data, list)
316
317	# Add the actual Data1D/Data2D object
318	object_item = QtGui.QStandardItem()
319	object_item.setText(name)
320	object_item.setData(QtCore.QVariant(update_data))
321
322	# Append the new row to the main item
323	item.appendRow(object_item)
324
325
326	def plotsFromCheckedItems(model_item):
327	"""
328	Returns the list of plots for items in the model which are checked
329	"""
330	assert isinstance(model_item, QtGui.QStandardItemModel)
331
332	plot_data = []
333	# Iterate over model looking for items with checkboxes
334	for index in range(model_item.rowCount()):
335	item = model_item.item(index)
336	if item.isCheckable() and item.checkState() == QtCore.Qt.Checked:
337	# TODO: assure item type is correct (either data1/2D or Plotter)
338	plot_data.append((item, item.child(0).data().toPyObject()))
339	# Going 1 level deeper only
340	for index_2 in range(item.rowCount()):
341	item_2 = item.child(index_2)
342	if item_2 and item_2.isCheckable() and item_2.checkState() == QtCore.Qt.Checked:
343	# TODO: assure item type is correct (either data1/2D or Plotter)
344	plot_data.append((item_2, item_2.child(0).data().toPyObject()))
345
346	return plot_data
347
348	def infoFromData(data):
349	"""
350	Given Data1D/Data2D object, extract relevant Info elements
351	and add them to a model item
352	"""
353	assert isinstance(data, (Data1D, Data2D))
354
355	info_item = QtGui.QStandardItem("Info")
356
357	title_item = QtGui.QStandardItem("Title: " + data.title)
358	info_item.appendRow(title_item)
359	run_item = QtGui.QStandardItem("Run: " + str(data.run))
360	info_item.appendRow(run_item)
361	type_item = QtGui.QStandardItem("Type: " + str(data.__class__.__name__))
362	info_item.appendRow(type_item)
363
364	if data.path:
365	path_item = QtGui.QStandardItem("Path: " + data.path)
366	info_item.appendRow(path_item)
367
368	if data.instrument:
369	instr_item = QtGui.QStandardItem("Instrument: " + data.instrument)
370	info_item.appendRow(instr_item)
371
372	process_item = QtGui.QStandardItem("Process")
373	if isinstance(data.process, list) and data.process:
374	for process in data.process:
375	process_date = process.date
376	process_date_item = QtGui.QStandardItem("Date: " + process_date)
377	process_item.appendRow(process_date_item)
378
379	process_descr = process.description
380	process_descr_item = QtGui.QStandardItem("Description: " + process_descr)
381	process_item.appendRow(process_descr_item)
382
383	process_name = process.name
384	process_name_item = QtGui.QStandardItem("Name: " + process_name)
385	process_item.appendRow(process_name_item)
386
387	info_item.appendRow(process_item)
388
389	return info_item
390
391	def openLink(url):
392	"""
393	Open a URL in an external browser.
394	Check the URL first, though.
395	"""
396	parsed_url = urlparse.urlparse(url)
397	if parsed_url.scheme:
398	webbrowser.open(url)
399	else:
400	msg = "Attempt at opening an invalid URL"
401	raise AttributeError, msg
402
403	def retrieveData1d(data):
404	"""
405	Retrieve 1D data from file and construct its text
406	representation
407	"""
408	if not isinstance(data, Data1D):
409	msg = "Incorrect type passed to retrieveData1d"
410	raise AttributeError, msg
411	try:
412	xmin = min(data.x)
413	ymin = min(data.y)
414	except:
415	msg = "Unable to find min/max of \n data named %s" % \
416	data.filename
417	#logging.error(msg)
418	raise ValueError, msg
419
420	text = data.__str__()
421	text += 'Data Min Max:\n'
422	text += 'X_min = %s: X_max = %s\n' % (xmin, max(data.x))
423	text += 'Y_min = %s: Y_max = %s\n' % (ymin, max(data.y))
424	if data.dy != None:
425	text += 'dY_min = %s: dY_max = %s\n' % (min(data.dy), max(data.dy))
426	text += '\nData Points:\n'
427	x_st = "X"
428	for index in range(len(data.x)):
429	if data.dy != None and len(data.dy) > index:
430	dy_val = data.dy[index]
431	else:
432	dy_val = 0.0
433	if data.dx != None and len(data.dx) > index:
434	dx_val = data.dx[index]
435	else:
436	dx_val = 0.0
437	if data.dxl != None and len(data.dxl) > index:
438	if index == 0:
439	x_st = "Xl"
440	dx_val = data.dxl[index]
441	elif data.dxw != None and len(data.dxw) > index:
442	if index == 0:
443	x_st = "Xw"
444	dx_val = data.dxw[index]
445
446	if index == 0:
447	text += "<index> \t<X> \t<Y> \t<dY> \t<d%s>\n" % x_st
448	text += "%s \t%s \t%s \t%s \t%s\n" % (index,
449	data.x[index],
450	data.y[index],
451	dy_val,
452	dx_val)
453	return text
454
455	def retrieveData2d(data):
456	"""
457	Retrieve 2D data from file and construct its text
458	representation
459	"""
460	if not isinstance(data, Data2D):
461	msg = "Incorrect type passed to retrieveData2d"
462	raise AttributeError, msg
463
464	text = data.__str__()
465	text += 'Data Min Max:\n'
466	text += 'I_min = %s\n' % min(data.data)
467	text += 'I_max = %s\n\n' % max(data.data)
468	text += 'Data (First 2501) Points:\n'
469	text += 'Data columns include err(I).\n'
470	text += 'ASCII data starts here.\n'
471	text += "<index> \t<Qx> \t<Qy> \t<I> \t<dI> \t<dQparal> \t<dQperp>\n"
472	di_val = 0.0
473	dx_val = 0.0
474	dy_val = 0.0
475	len_data = len(data.qx_data)
476	for index in xrange(0, len_data):
477	x_val = data.qx_data[index]
478	y_val = data.qy_data[index]
479	i_val = data.data[index]
480	if data.err_data != None:
481	di_val = data.err_data[index]
482	if data.dqx_data != None:
483	dx_val = data.dqx_data[index]
484	if data.dqy_data != None:
485	dy_val = data.dqy_data[index]
486
487	text += "%s \t%s \t%s \t%s \t%s \t%s \t%s\n" % (index,
488	x_val,
489	y_val,
490	i_val,
491	di_val,
492	dx_val,
493	dy_val)
494	# Takes too long time for typical data2d: Break here
495	if index >= 2500:
496	text += ".............\n"
497	break
498
499	return text
500
501	def onTXTSave(data, path):
502	"""
503	Save file as formatted txt
504	"""
505	with open(path,'w') as out:
506	has_errors = True
507	if data.dy == None or data.dy == []:
508	has_errors = False
509	# Sanity check
510	if has_errors:
511	try:
512	if len(data.y) != len(data.dy):
513	has_errors = False
514	except:
515	has_errors = False
516	if has_errors:
517	if data.dx != None and data.dx != []:
518	out.write("<X> <Y> <dY> <dX>\n")
519	else:
520	out.write("<X> <Y> <dY>\n")
521	else:
522	out.write("<X> <Y>\n")
523
524	for i in range(len(data.x)):
525	if has_errors:
526	if data.dx != None and data.dx != []:
527	if data.dx[i] != None:
528	out.write("%g %g %g %g\n" % (data.x[i],
529	data.y[i],
530	data.dy[i],
531	data.dx[i]))
532	else:
533	out.write("%g %g %g\n" % (data.x[i],
534	data.y[i],
535	data.dy[i]))
536	else:
537	out.write("%g %g %g\n" % (data.x[i],
538	data.y[i],
539	data.dy[i]))
540	else:
541	out.write("%g %g\n" % (data.x[i],
542	data.y[i]))
543
544	def saveData1D(data):
545	"""
546	Save 1D data points
547	"""
548	default_name = os.path.basename(data.filename)
549	default_name, extension = os.path.splitext(default_name)
550	default_name += "_out" + extension
551
552	wildcard = "Text files (*.txt);;"\
553	"CanSAS 1D files(*.xml)"
554	kwargs = {
555	'caption' : 'Save As',
556	'directory' : default_name,
557	'filter' : wildcard,
558	'parent' : None,
559	}
560	# Query user for filename.
561	filename = QtGui.QFileDialog.getSaveFileName(**kwargs)
562
563	# User cancelled.
564	if not filename:
565	return
566
567	filename = str(filename)
568
569	#Instantiate a loader
570	loader = Loader()
571	if os.path.splitext(filename)[1].lower() == ".txt":
572	onTXTSave(data, filename)
573	if os.path.splitext(filename)[1].lower() == ".xml":
574	loader.save(filename, data, ".xml")
575
576	def saveData2D(data):
577	"""
578	Save data2d dialog
579	"""
580	default_name = os.path.basename(data.filename)
581	default_name, _ = os.path.splitext(default_name)
582	ext_format = ".dat"
583	default_name += "_out" + ext_format
584
585	wildcard = "IGOR/DAT 2D file in Q_map (*.dat)"
586	kwargs = {
587	'caption' : 'Save As',
588	'directory' : default_name,
589	'filter' : wildcard,
590	'parent' : None,
591	}
592	# Query user for filename.
593	filename = QtGui.QFileDialog.getSaveFileName(**kwargs)
594
595	# User cancelled.
596	if not filename:
597	return
598	filename = str(filename)
599	#Instantiate a loader
600	loader = Loader()
601
602	if os.path.splitext(filename)[1].lower() == ext_format:
603	loader.save(filename, data, ext_format)
604
605	class FormulaValidator(QtGui.QValidator):
606	def __init__(self, parent=None):
607	super(FormulaValidator, self).__init__(parent)
608
609	def validate(self, input, pos):
610	try:
611	Formula(str(input))
612	self._setStyleSheet("")
613	return QtGui.QValidator.Acceptable, pos
614
615	except Exception as e:
616	self._setStyleSheet("background-color:pink;")
617	return QtGui.QValidator.Intermediate, pos
618
619	def _setStyleSheet(self, value):
620	try:
621	if self.parent():
622	self.parent().setStyleSheet(value)
623	except:
624	pass
625
626	def xyTransform(data, xLabel="", yLabel=""):
627	"""
628	Transforms x and y in View and set the scale
629	"""
630	# Changing the scale might be incompatible with
631	# currently displayed data (for instance, going
632	# from ln to log when all plotted values have
633	# negative natural logs).
634	# Go linear and only change the scale at the end.
635	xscale = 'linear'
636	yscale = 'linear'
637	# Local data is either 1D or 2D
638	if data.id == 'fit':
639	return
640
641	# control axis labels from the panel itself
642	yname, yunits = data.get_yaxis()
643	xname, xunits = data.get_xaxis()
644
645	# Goes through all possible scales
646	# self.x_label is already wrapped with Latex "$", so using the argument
647
648	# X
649	if xLabel == "x":
650	data.transformX(transform.toX, transform.errToX)
651	xLabel = "%s(%s)" % (xname, xunits)
652	if xLabel == "x^(2)":
653	data.transformX(transform.toX2, transform.errToX2)
654	xunits = convert_unit(2, xunits)
655	xLabel = "%s^{2}(%s)" % (xname, xunits)
656	if xLabel == "x^(4)":
657	data.transformX(transform.toX4, transform.errToX4)
658	xunits = convert_unit(4, xunits)
659	xLabel = "%s^{4}(%s)" % (xname, xunits)
660	if xLabel == "ln(x)":
661	data.transformX(transform.toLogX, transform.errToLogX)
662	xLabel = "\ln{(%s)}(%s)" % (xname, xunits)
663	if xLabel == "log10(x)":
664	data.transformX(transform.toX_pos, transform.errToX_pos)
665	xscale = 'log'
666	xLabel = "%s(%s)" % (xname, xunits)
667	if xLabel == "log10(x^(4))":
668	data.transformX(transform.toX4, transform.errToX4)
669	xunits = convert_unit(4, xunits)
670	xLabel = "%s^{4}(%s)" % (xname, xunits)
671	xscale = 'log'
672
673	# Y
674	if yLabel == "ln(y)":
675	data.transformY(transform.toLogX, transform.errToLogX)
676	yLabel = "\ln{(%s)}(%s)" % (yname, yunits)
677	if yLabel == "y":
678	data.transformY(transform.toX, transform.errToX)
679	yLabel = "%s(%s)" % (yname, yunits)
680	if yLabel == "log10(y)":
681	data.transformY(transform.toX_pos, transform.errToX_pos)
682	yscale = 'log'
683	yLabel = "%s(%s)" % (yname, yunits)
684	if yLabel == "y^(2)":
685	data.transformY(transform.toX2, transform.errToX2)
686	yunits = convert_unit(2, yunits)
687	yLabel = "%s^{2}(%s)" % (yname, yunits)
688	if yLabel == "1/y":
689	data.transformY(transform.toOneOverX, transform.errOneOverX)
690	yunits = convert_unit(-1, yunits)
691	yLabel = "1/%s(%s)" % (yname, yunits)
692	if yLabel == "y*x^(2)":
693	data.transformY(transform.toYX2, transform.errToYX2)
694	xunits = convert_unit(2, xunits)
695	yLabel = "%s \ \ %s^{2}(%s%s)" % (yname, xname, yunits, xunits)
696	if yLabel == "y*x^(4)":
697	data.transformY(transform.toYX4, transform.errToYX4)
698	xunits = convert_unit(4, xunits)
699	yLabel = "%s \ \ %s^{4}(%s%s)" % (yname, xname, yunits, xunits)
700	if yLabel == "1/sqrt(y)":
701	data.transformY(transform.toOneOverSqrtX,
702	transform.errOneOverSqrtX)
703	yunits = convert_unit(-0.5, yunits)
704	yLabel = "1/\sqrt{%s}(%s)" % (yname, yunits)
705	if yLabel == "ln(y*x)":
706	data.transformY(transform.toLogXY, transform.errToLogXY)
707	yLabel = "\ln{(%s \ \ %s)}(%s%s)" % (yname, xname, yunits, xunits)
708	if yLabel == "ln(y*x^(2))":
709	data.transformY(transform.toLogYX2, transform.errToLogYX2)
710	xunits = convert_unit(2, xunits)
711	yLabel = "\ln (%s \ \ %s^{2})(%s%s)" % (yname, xname, yunits, xunits)
712	if yLabel == "ln(y*x^(4))":
713	data.transformY(transform.toLogYX4, transform.errToLogYX4)
714	xunits = convert_unit(4, xunits)
715	yLabel = "\ln (%s \ \ %s^{4})(%s%s)" % (yname, xname, yunits, xunits)
716	if yLabel == "log10(y*x^(4))":
717	data.transformY(transform.toYX4, transform.errToYX4)
718	xunits = convert_unit(4, xunits)
719	yscale = 'log'
720	yLabel = "%s \ \ %s^{4}(%s%s)" % (yname, xname, yunits, xunits)
721
722	# Perform the transformation of data in data1d->View
723	data.transformView()
724
725	return (xLabel, yLabel, xscale, yscale)
726
727	def dataFromItem(item):
728	"""
729	Retrieve Data1D/2D component from QStandardItem.
730	The assumption - data stored in SasView standard, in child 0
731	"""
732	return item.child(0).data().toPyObject()
733
734	def formatNumber(value, high=False):
735	"""
736	Return a float in a standardized, human-readable formatted string.
737	This is used to output readable (e.g. x.xxxe-y) values to the panel.
738	"""
739	try:
740	value = float(value)
741	except:
742	output = "NaN"
743	return output.lstrip().rstrip()
744
745	if high:
746	output = "%-6.4g" % value
747
748	else:
749	output = "%-5.3g" % value
750	return output.lstrip().rstrip()

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SasView

source: sasview/src/sas/qtgui/Utilities/GuiUtils.py @ 83eb5208

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