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| 2 | ################################################################################ |
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| 3 | #This software was developed by the University of Tennessee as part of the |
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| 4 | #Distributed Data Analysis of Neutron Scattering Experiments (DANSE) |
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| 5 | #project funded by the US National Science Foundation. |
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| 6 | # |
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| 7 | #See the license text in license.txt |
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| 8 | # |
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| 9 | #copyright 2009, University of Tennessee |
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| 10 | ################################################################################ |
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| 11 | import wx |
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| 12 | import sys |
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| 13 | from sans.guiframe.events import StatusEvent |
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| 14 | # default ftol |
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| 15 | F_TOL = 1.49012e-08 |
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| 16 | |
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| 17 | if sys.platform.count("win32") > 0: |
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| 18 | PANEL_WIDTH = 270 |
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| 19 | PANEL_HEIGHT = 250 |
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| 20 | FONT_VARIANT = 0 |
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| 21 | else: |
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| 22 | PANEL_WIDTH = 285 |
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| 23 | PANEL_HEIGHT = 255 |
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| 24 | FONT_VARIANT = 1 |
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| 25 | |
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| 26 | """ |
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| 27 | Dialog to set ftol for Scipy |
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| 28 | |
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| 29 | ftol(float): Relative error desired in the sum of squares. |
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| 30 | """ |
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| 31 | class ChangeFtol(wx.Dialog): |
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| 32 | """ |
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| 33 | Dialog to select ftol |
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| 34 | """ |
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| 35 | def __init__(self, parent, id=-1, title="FTolerance"): |
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| 36 | wx.Dialog.__init__(self, parent, id, title, |
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| 37 | size=(PANEL_WIDTH, PANEL_HEIGHT)) |
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| 38 | # parent |
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| 39 | self.parent = parent |
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| 40 | # default ftol |
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| 41 | self.ftol = F_TOL |
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| 42 | # font size |
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| 43 | self.SetWindowVariant(variant=FONT_VARIANT) |
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| 44 | # build layout |
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| 45 | panel = wx.Panel(self, -1) |
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| 46 | vbox = wx.BoxSizer(wx.VERTICAL) |
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| 47 | wx.StaticBox(panel, -1, 'ftol selection (Scipy)', (5, 5), |
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| 48 | (PANEL_WIDTH*0.9, PANEL_HEIGHT*0.65)) |
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| 49 | default_bt = wx.RadioButton(panel, -1, 'Default', (15, 30), |
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| 50 | style=wx.RB_GROUP) |
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| 51 | default_bt.Bind(wx.EVT_RADIOBUTTON, self.OnFtolSelection) |
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| 52 | default_bt.SetValue(True) |
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| 53 | high_bt = wx.RadioButton(panel, -1, '1e-06', (15, 55)) |
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| 54 | high_bt.SetValue(False) |
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| 55 | high_bt.Bind(wx.EVT_RADIOBUTTON, self.OnFtolSelection) |
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| 56 | mid_bt = wx.RadioButton(panel, -1, '1e-05', (15, 80)) |
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| 57 | mid_bt.SetValue(False) |
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| 58 | mid_bt.Bind(wx.EVT_RADIOBUTTON, self.OnFtolSelection) |
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| 59 | low_bt = wx.RadioButton(panel, -1, '1e-04', (15, 105)) |
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| 60 | low_bt.SetValue(False) |
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| 61 | low_bt.Bind(wx.EVT_RADIOBUTTON, self.OnFtolSelection) |
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| 62 | self.custom_bt = wx.RadioButton(panel, -1, 'Custom', (15, 130)) |
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| 63 | self.custom_bt.SetValue(False) |
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| 64 | self.custom_bt.Bind(wx.EVT_RADIOBUTTON, self.OnFtolSelection) |
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| 65 | self.custombox = wx.TextCtrl(panel, -1, '', (95, 130)) |
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| 66 | self.custombox.Disable() |
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| 67 | hbox = wx.BoxSizer(wx.HORIZONTAL) |
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| 68 | okButton = wx.Button(self, -1, 'Set', size=(70, 30)) |
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| 69 | hbox.Add(okButton, 1, wx.RIGHT, 5) |
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| 70 | okButton.Bind(wx.EVT_BUTTON, self.OnClose) |
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| 71 | vbox.Add(panel) |
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| 72 | vbox.Add(hbox, 1, wx.ALIGN_CENTER | wx.TOP | wx.BOTTOM, 10) |
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| 73 | # set sizer |
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| 74 | self.SetSizer(vbox) |
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| 75 | |
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| 76 | def OnFtolSelection(self, event=None): |
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| 77 | """ |
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| 78 | Changes the ftol on selection of the radio button |
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| 79 | """ |
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| 80 | event.Skip() |
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| 81 | # event object and selection |
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| 82 | button = event.GetEventObject() |
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| 83 | selection = button.GetLabel() |
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| 84 | # get float value |
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| 85 | if selection == 'Default': |
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| 86 | ftol = F_TOL |
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| 87 | self.custombox.Disable() |
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| 88 | elif selection == 'Custom': |
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| 89 | ftol = F_TOL |
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| 90 | self.custombox.Enable(True) |
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| 91 | else: |
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| 92 | ftol = float(selection) |
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| 93 | self.custombox.Disable() |
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| 94 | self.ftol = ftol |
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| 95 | |
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| 96 | |
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| 97 | def OnClose(self, event): |
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| 98 | """ |
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| 99 | Close event |
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| 100 | """ |
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| 101 | # clear event |
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| 102 | event.Skip() |
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| 103 | flag = True |
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| 104 | # I case of the custom ftol |
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| 105 | if self.custom_bt.GetValue(): |
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| 106 | try: |
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| 107 | ftol = float(self.custombox.GetValue()) |
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| 108 | self.ftol = ftol |
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| 109 | except: |
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| 110 | flag = False |
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| 111 | if flag: |
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| 112 | # set ftol in fitting |
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| 113 | self.parent.manager.set_ftol(self.ftol) |
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| 114 | msg = "The ftol (Scipy) is set to %s." % self.ftol |
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| 115 | else: |
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| 116 | msg = "Error in the selection... No changes in ftol." |
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| 117 | # post event for info |
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| 118 | wx.PostEvent( self.parent.manager.parent, |
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| 119 | StatusEvent(status= msg, info='warning')) |
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| 120 | |
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| 121 | self.Destroy() |
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| 122 | |
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