density_panel.py @ 7a04dbb

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 7a04dbb was 79492222, checked in by krzywon, 10 years ago
Changed the file and folder names to remove all SANS references.
Property mode set to `100644`
File size: 14.8 KB

Line
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 @ 7a04dbb

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