density_panel.py @ 79492222

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload

Last change on this file since 79492222 was 79492222, checked in by krzywon, 9 years ago
Changed the file and folder names to remove all SANS references.
Property mode set to `100644`
File size: 14.8 KB

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1	"""
2	This module provide GUI for the mass density calculator
3
4	"""
5	import wx
6	import sys
7	from sas.guiframe.panel_base import PanelBase
8	from wx.lib.scrolledpanel import ScrolledPanel
9	from sas.guiframe.utils import check_float
10	from sas.guiframe.events import StatusEvent
11	from periodictable import formula as Formula
12	from sas.perspectives.calculator import calculator_widgets as widget
13
14	AVOGADRO = 6.02214129e23
15	_INPUTS = ['Mass Density', 'Molar Volume']
16	_UNITS = ['g/cm^(3) ', 'cm^(3)/mol ']
17	#Density panel size
18	if sys.platform.count("win32") > 0:
19	_STATICBOX_WIDTH = 410
20	_BOX_WIDTH = 200
21	PANEL_SIZE = 440
22	FONT_VARIANT = 0
23	else:
24	_STATICBOX_WIDTH = 430
25	_BOX_WIDTH = 200
26	PANEL_SIZE = 460
27	FONT_VARIANT = 1
28
29	class DensityPanel(ScrolledPanel, PanelBase):
30	"""
31	Provides the mass density calculator GUI.
32	"""
33	## Internal nickname for the window, used by the AUI manager
34	window_name = "Mass Density Calculator"
35	## Name to appear on the window title bar
36	window_caption = "Mass Density Calculator"
37	## Flag to tell the AUI manager to put this panel in the center pane
38	CENTER_PANE = True
39
40	def __init__(self, parent, base=None, args, *kwds):
41	"""
42	"""
43	ScrolledPanel.__init__(self, parent, args, *kwds)
44	PanelBase.__init__(self)
45	self.SetupScrolling()
46	#Font size
47	self.SetWindowVariant(variant=FONT_VARIANT)
48	# Object that receive status event
49	self.base = base
50	# chemeical formula, string
51	self.compound = ''
52	# value of the density/volume, float
53	self.input = None
54	# text controls
55	self.compound_ctl = None
56	self.input_ctl = None
57	self.molar_mass_ctl = None
58	self.output_ctl = None
59	self.ctr_color = self.GetBackgroundColour()
60	# button
61	self.button_calculate = None
62	# list
63	self._input_list = _INPUTS
64	self._input = self._input_list[1]
65	self._output = self._input_list[0]
66	self._unit_list = _UNITS
67	#Draw the panel
68	self._do_layout()
69	self.SetAutoLayout(True)
70	self.Layout()
71
72	def _do_layout(self):
73	"""
74	Draw window content
75	"""
76	# units
77	unit_density = self._unit_list[0]
78	unit_volume = self._unit_list[1]
79
80	# sizers
81	sizer_input = wx.GridBagSizer(5, 5)
82	sizer_output = wx.GridBagSizer(5, 5)
83	sizer_button = wx.BoxSizer(wx.HORIZONTAL)
84	self.sizer1 = wx.BoxSizer(wx.HORIZONTAL)
85	self.sizer2 = wx.BoxSizer(wx.HORIZONTAL)
86	sizer3 = wx.BoxSizer(wx.HORIZONTAL)
87	vbox = wx.BoxSizer(wx.VERTICAL)
88
89	# inputs
90	inputbox = wx.StaticBox(self, -1, "Inputs")
91	boxsizer1 = wx.StaticBoxSizer(inputbox, wx.VERTICAL)
92	boxsizer1.SetMinSize((_STATICBOX_WIDTH, -1))
93	compound_txt = wx.StaticText(self, -1, 'Molecular Formula ')
94	self.compound_ctl = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, -1))
95	self.compound_eg1 = wx.StaticText(self, -1, ' e.g., H2O')
96	self.compound_eg2 = wx.StaticText(self, -1, 'e.g., D2O')
97	self.input_cb = wx.ComboBox(self, -1, style=wx.CB_READONLY)
98	wx.EVT_COMBOBOX(self.input_cb, -1, self.on_select_input)
99	hint_input_name_txt = 'Mass or volume.'
100	self.input_cb.SetToolTipString(hint_input_name_txt)
101	unit_density1 = " " + unit_density
102	self.input_ctl = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, -1))
103	self.unit_input_density = wx.StaticText(self, -1, unit_density1)
104	self.unit_input_volume = wx.StaticText(self, -1, unit_volume)
105	iy = 0
106	ix = 0
107	sizer_input.Add(compound_txt, (iy, ix), (1, 1),
108	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
109	ix += 1
110	sizer_input.Add(self.compound_ctl, (iy, ix), (1, 1),
111	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
112	ix += 1
113	sizer_input.Add(self.compound_eg1, (iy, ix), (1, 1),
114	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
115
116	ix += 1
117	sizer_input.Add(self.compound_eg2, (iy, ix), (1, 1),
118	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
119	self.compound_eg1.Show(False)
120	iy += 1
121	ix = 0
122	sizer_input.Add(self.input_cb, (iy, ix), (1, 1),
123	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
124	ix += 1
125	sizer_input.Add(self.input_ctl, (iy, ix), (1, 1),
126	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
127	ix +=1
128	sizer_input.Add(self.unit_input_density,(iy, ix), (1, 1),
129	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
130	ix +=1
131	self.unit_input_density.Show(False)
132	sizer_input.Add(self.unit_input_volume,(iy, ix), (1, 1),
133	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
134	boxsizer1.Add(sizer_input)
135	self.sizer1.Add(boxsizer1, 0, wx.EXPAND \| wx.ALL, 10)
136
137	# outputs
138	outputbox = wx.StaticBox(self, -1, "Outputs")
139	boxsizer2 = wx.StaticBoxSizer(outputbox, wx.VERTICAL)
140	boxsizer2.SetMinSize((_STATICBOX_WIDTH, -1))
141
142	molar_mass_txt = wx.StaticText(self, -1, 'Molar Mass ')
143	self.molar_mass_ctl = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, -1))
144	self.molar_mass_ctl.SetEditable(False)
145	self.molar_mass_ctl.SetBackgroundColour(self.ctr_color)
146	self.molar_mass_unit1 = wx.StaticText(self, -1, ' g/mol')
147	self.molar_mass_unit2 = wx.StaticText(self, -1, 'g/mol')
148
149	self.output_cb = wx.ComboBox(self, -1, style=wx.CB_READONLY)
150	wx.EVT_COMBOBOX(self.output_cb, -1, self.on_select_output)
151	hint_output_name_txt = 'Mass or volume.'
152	self.output_cb.SetToolTipString(hint_output_name_txt)
153	list = []
154	for item in self._input_list:
155	name = str(item)
156	list.append(name)
157	list.sort()
158	for idx in range(len(list)):
159	self.input_cb.Append(list[idx],idx)
160	self.output_cb.Append(list[idx],idx)
161	self.input_cb.SetStringSelection("Molar Volume")
162	self.output_cb.SetStringSelection("Mass Density")
163	unit_volume = " " + unit_volume
164	self.output_ctl = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, -1))
165	self.output_ctl.SetEditable(False)
166	self.output_ctl.SetBackgroundColour(self.ctr_color)
167	self.unit_output_density = wx.StaticText(self, -1, unit_density)
168	self.unit_output_volume = wx.StaticText(self, -1, unit_volume)
169	iy = 0
170	ix = 0
171	sizer_output.Add(molar_mass_txt, (iy, ix), (1, 1),
172	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
173	ix += 1
174	sizer_output.Add(self.molar_mass_ctl, (iy, ix), (1, 1),
175	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
176	ix += 1
177	sizer_output.Add(self.molar_mass_unit1, (iy, ix), (1, 1),
178	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
179	ix += 1
180	sizer_output.Add(self.molar_mass_unit2, (iy, ix), (1, 1),
181	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
182	self.molar_mass_unit1.Show(False)
183	iy += 1
184	ix = 0
185	sizer_output.Add(self.output_cb, (iy, ix), (1, 1),
186	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
187	ix += 1
188	sizer_output.Add(self.output_ctl, (iy, ix), (1, 1),
189	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
190	ix +=1
191	sizer_output.Add(self.unit_output_volume,
192	(iy, ix), (1, 1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
193	ix += 1
194	sizer_output.Add(self.unit_output_density,
195	(iy, ix), (1, 1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
196
197	self.unit_output_volume.Show(False)
198	boxsizer2.Add(sizer_output)
199	self.sizer2.Add(boxsizer2, 0, wx.EXPAND\|wx.ALL, 10)
200
201	# buttons
202	id = wx.NewId()
203	self.button_calculate = wx.Button(self, id, "Calculate")
204	self.button_calculate.SetToolTipString("Calculate.")
205	self.Bind(wx.EVT_BUTTON, self.calculate, id=id)
206
207	sizer_button.Add((250, 20), 1, wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
208	sizer_button.Add(self.button_calculate, 0,
209	wx.RIGHT\|wx.ADJUST_MINSIZE, 20)
210	sizer3.Add(sizer_button)
211
212	# layout
213	vbox.Add(self.sizer1)
214	vbox.Add(self.sizer2)
215	vbox.Add(sizer3)
216	vbox.Fit(self)
217	self.SetSizer(vbox)
218
219	def on_select_input(self, event):
220	"""
221	On selection of input combobox,
222	update units and output combobox
223	"""
224	if event == None:
225	return
226	event.Skip()
227
228	combo = event.GetEventObject()
229	self._input = combo.GetValue()
230	for name in self._input_list:
231	if self._input != name:
232	self._output = name
233	break
234
235	self.set_values()
236
237	def on_select_output(self, event):
238	"""
239	On selection of output combobox,
240	update units and input combobox
241	"""
242	if event == None:
243	return
244	event.Skip()
245
246	combo = event.GetEventObject()
247	self._output = combo.GetValue()
248	for name in self._input_list:
249	if self._output != name:
250	self._input = name
251	break
252
253	self.set_values()
254
255	def set_values(self):
256	"""
257	Sets units and combobox values
258	"""
259	input, output = self.get_input()
260	if input is None:
261	return
262	# input
263	self.input_cb.SetValue(str(input))
264	# output
265	self.output_cb.SetValue(str(output))
266	# unit
267	if self._input_list.index(input) == 0:
268	self.molar_mass_unit1.Show(True)
269	self.molar_mass_unit2.Show(False)
270	self.compound_eg1.Show(True)
271	self.compound_eg2.Show(False)
272	self.unit_input_density.Show(True)
273	self.unit_output_volume.Show(True)
274	self.unit_input_volume.Show(False)
275	self.unit_output_density.Show(False)
276	else:
277	self.molar_mass_unit1.Show(False)
278	self.molar_mass_unit2.Show(True)
279	self.compound_eg1.Show(False)
280	self.compound_eg2.Show(True)
281	self.unit_input_volume.Show(True)
282	self.unit_output_density.Show(True)
283	self.unit_input_density.Show(False)
284	self.unit_output_volume.Show(False)
285	# layout
286	self.clear_outputs()
287	self.sizer1.Layout()
288	self.sizer2.Layout()
289
290	def get_input(self):
291	"""
292	Return the current input and output combobox values
293	"""
294	return self._input, self._output
295
296	def check_inputs(self):
297	"""
298	Check validity user inputs
299	"""
300	flag = True
301	msg = ""
302	if check_float(self.input_ctl):
303	self.input = float(self.input_ctl.GetValue())
304	else:
305	flag = False
306	input_type = str(self.input_cb.GetValue())
307	msg += "Error for %s value :expect float"% input_type
308
309	self.compound = self.compound_ctl.GetValue().lstrip().rstrip()
310	if self.compound != "":
311	try :
312	Formula(self.compound)
313	self.compound_ctl.SetBackgroundColour(wx.WHITE)
314	self.compound_ctl.Refresh()
315	except:
316	self.compound_ctl.SetBackgroundColour("pink")
317	self.compound_ctl.Refresh()
318	flag = False
319	msg += "Enter correct formula"
320	else:
321	self.compound_ctl.SetBackgroundColour("pink")
322	self.compound_ctl.Refresh()
323	flag = False
324	msg += "Enter Formula"
325	return flag, msg
326
327
328	def calculate(self, event):
329	"""
330	Calculate the mass Density/molar Volume of the molecules
331	"""
332	self.clear_outputs()
333	try:
334	#Check validity user inputs
335	flag, msg = self.check_inputs()
336	if self.base is not None and msg.lstrip().rstrip() != "":
337	msg = "Density/Volume Calculator: %s" % str(msg)
338	wx.PostEvent(self.base, StatusEvent(status=msg))
339	if not flag:
340	return
341	#get ready to compute
342	mol_formula = Formula(self.compound)
343	molar_mass = float(mol_formula.molecular_mass) * AVOGADRO
344	output = self._format_number(molar_mass / self.input)
345	self.molar_mass_ctl.SetValue(str(self._format_number(molar_mass)))
346	self.output_ctl.SetValue(str(output))
347	except:
348	if self.base is not None:
349	msg = "Density/Volume Calculator: %s"%(sys.exc_value)
350	wx.PostEvent(self.base, StatusEvent(status=msg))
351	if event is not None:
352	event.Skip()
353
354	def clear_outputs(self):
355	"""
356	Clear the outputs textctrl
357	"""
358	self.molar_mass_ctl.SetValue("")
359	self.output_ctl.SetValue("")
360
361	def _format_number(self, value=None):
362	"""
363	Return a float in a standardized, human-readable formatted string
364	"""
365	try:
366	value = float(value)
367	except:
368	output = ''
369	return output
370
371	output = "%-12.5f" % value
372	return output.lstrip().rstrip()
373
374	class DensityWindow(widget.CHILD_FRAME):
375	"""
376	"""
377	def __init__(self, parent=None, title="Density/Volume Calculator",
378	base=None, manager=None,
379	size=(PANEL_SIZE, PANEL_SIZE/1.7), args, *kwds):
380	"""
381	"""
382	kwds['title'] = title
383	kwds['size'] = size
384	widget.CHILD_FRAME.__init__(self, parent, args, *kwds)
385	"""
386	"""
387	self.manager = manager
388	self.panel = DensityPanel(self, base=base)
389	self.Bind(wx.EVT_CLOSE, self.on_close)
390	self.SetPosition((25, 160))
391	self.Show(True)
392
393	def on_close(self, event):
394	"""
395	On close event
396	"""
397	if self.manager != None:
398	self.manager.cal_md_frame = None
399	self.Destroy()
400
401
402	class ViewApp(wx.App):
403	"""
404	"""
405	def OnInit(self):
406	"""
407	"""
408	widget.CHILD_FRAME = wx.Frame
409	frame = DensityWindow(None, title="Density/Volume Calculator")
410	frame.Show(True)
411	self.SetTopWindow(frame)
412	return True
413
414
415	if __name__ == "__main__":
416	app = ViewApp(0)
417	app.MainLoop()

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source: sasview/src/sas/perspectives/calculator/density_panel.py @ 79492222

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