gui.input_elements.sequence

1 ############################################################################### 2 # # 3 # Copyright (C) 2012-2015 Edward d'Auvergne # 4 # # 5 # This file is part of the program relax (http://www.nmr-relax.com). # 6 # # 7 # This program is free software: you can redistribute it and/or modify # 8 # it under the terms of the GNU General Public License as published by # 9 # the Free Software Foundation, either version 3 of the License, or # 10 # (at your option) any later version. # 11 # # 12 # This program is distributed in the hope that it will be useful, # 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of # 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # 15 # GNU General Public License for more details. # 16 # # 17 # You should have received a copy of the GNU General Public License # 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. # 19 # # 20 ############################################################################### 21 22 # Module docstring. 23 """Module containing a set of special GUI elements to be used in the relax wizards.""" 24 25 # Python module imports. 26 import wx 27 import wx.lib.mixins.listctrl 28 29 # relax module imports. 30 from graphics import fetch_icon 31 from gui.input_elements.combo_list import Combo_list 32 from gui.fonts import font 33 from gui.misc import add_border 34 from gui.string_conv import float_to_gui, gui_to_float, gui_to_int, gui_to_list, gui_to_py, gui_to_str, gui_to_tuple, int_to_gui, list_to_gui, py_to_gui, str_to_gui, tuple_to_gui 35 from lib.check_types import is_list 36 from lib.errors import RelaxError 37 from status import Status; status = Status() 38 39

40 -class Sequence:

41 """Wizard GUI element for the input of all types of Python sequence objects. 42 43 The supported Python types include: 44 - list of floats 45 - list of integers 46 - list of strings 47 - tuple of floats 48 - tuple of integers 49 - tuple of strings 50 """ 51

52 - def __init__(self, name=None, default=None, parent=None, element_type='default', seq_type=None, value_type=None, dim=None, min=0, max=1000, sizer=None, titles=None, desc=None, combo_choices=None, combo_data=None, combo_list_min=None, tooltip=None, divider=None, padding=0, spacer=None, height_element=27, single_value=False, read_only=False, can_be_none=False):

53 """Set up the element. 54 55 @keyword name: The name of the element to use in titles, etc. 56 @type name: str 57 @keyword default: The default value of the element. 58 @type default: sequence object 59 @keyword parent: The wizard GUI element. 60 @type parent: wx.Panel instance 61 @keyword element_type: The type of GUI element to create. If set to 'default', the wx.TextCtrl element with a button to bring up a dialog with ListCtrl will be used. If set to 'combo_list', the special gui.components.combo_list.Combo_list element will be used. 62 @type element_type: str 63 @keyword seq_type: The type of Python sequence. This should be one of 'list' or 'tuple'. 64 @type seq_type: str 65 @keyword value_type: The type of Python object that the value should be. This can be one of 'float', 'int', or 'str'. 66 @type value_type: str 67 @keyword dim: The dimensions that a list or tuple must conform to. For a 1D sequence, this can be a single value or a tuple of possible sizes. For a 2D sequence (a numpy matrix or list of lists), this must be a tuple of the fixed dimension sizes, e.g. a 3x5 matrix should be specified as (3, 5). 68 @type dim: int, tuple of int or None 69 @keyword min: For a SpinCtrl, the minimum value allowed. 70 @type min: int 71 @keyword max: For a SpinCtrl, the maximum value allowed. 72 @type max: int 73 @keyword sizer: The sizer to put the input field widget into. 74 @type sizer: wx.Sizer instance 75 @keyword titles: The titles of each of the elements of the fixed dimension elements. 76 @type titles: list of str 77 @keyword desc: The text description. 78 @type desc: str 79 @keyword combo_choices: The list of choices to present to the user. This is only used if the element_type is set to 'combo'. 80 @type combo_choices: list of str 81 @keyword combo_data: The data returned by a call to GetValue(). This is only used if the element_type is set to 'combo'. If supplied, it should be the same length at the combo_choices list. If not supplied, the combo_choices list will be used for the returned data. 82 @type combo_data: list 83 @keyword combo_list_min: The minimum length for the Combo_list object. 84 @type combo_list_min: int or None 85 @keyword tooltip: The tooltip which appears on hovering over the text or input field. 86 @type tooltip: str 87 @keyword divider: The position of the divider. 88 @type divider: int 89 @keyword padding: Spacing to the left and right of the widgets. 90 @type padding: int 91 @keyword spacer: The amount of spacing to add below the field in pixels. If None, a stretchable spacer will be used. 92 @type spacer: None or int 93 @keyword height_element: The height in pixels of the GUI element. 94 @type height_element: int 95 @keyword single_value: A flag which if True will cause single input values to be treated as single values rather than a list or tuple. 96 @type single_value: bool 97 @keyword read_only: A flag which if True means that the text of the element cannot be edited. 98 @type read_only: bool 99 @keyword can_be_none: A flag which specifies if the element is allowed to have the None value. 100 @type can_be_none: bool 101 """ 102 103 # Store the args. 104 self.parent = parent 105 self.name = name 106 self.default = default 107 self.element_type = element_type 108 self.seq_type = seq_type 109 self.value_type = value_type 110 self.dim = dim 111 self.min = min 112 self.max = max 113 self.titles = titles 114 self.single_value = single_value 115 self.can_be_none = can_be_none 116 117 # The base types. 118 if value_type in ['float', 'num']: 119 self.convert_from_gui = gui_to_float 120 self.convert_to_gui = float_to_gui 121 elif value_type == 'int': 122 self.convert_from_gui = gui_to_int 123 self.convert_to_gui = int_to_gui 124 elif value_type == 'str': 125 self.convert_from_gui = gui_to_str 126 self.convert_to_gui = str_to_gui 127 else: 128 self.convert_from_gui = gui_to_py 129 self.convert_to_gui = py_to_gui 130 131 # The sequence types. 132 if seq_type == 'list': 133 self.convert_from_gui_seq = gui_to_list 134 self.convert_to_gui_seq = list_to_gui 135 elif seq_type == 'tuple': 136 self.convert_from_gui_seq = gui_to_tuple 137 self.convert_to_gui_seq = tuple_to_gui 138 else: 139 raise RelaxError("Unknown sequence type '%s'." % seq_type) 140 141 # Initialise the default element. 142 if self.element_type == 'default': 143 # Translate the read_only flag if None. 144 if read_only == None: 145 read_only = False 146 147 # Init. 148 sub_sizer = wx.BoxSizer(wx.HORIZONTAL) 149 150 # Left padding. 151 sub_sizer.AddSpacer(padding) 152 153 # The description. 154 text = wx.StaticText(parent, -1, desc, style=wx.ALIGN_LEFT) 155 text.SetFont(font.normal) 156 sub_sizer.Add(text, 0, wx.LEFT|wx.ALIGN_CENTER_VERTICAL, 0) 157 158 # The divider. 159 if not divider: 160 raise RelaxError("The divider position has not been supplied.") 161 162 # Spacing. 163 x, y = text.GetSize() 164 sub_sizer.AddSpacer((divider - x, 0)) 165 166 # The input field. 167 self._field = wx.TextCtrl(parent, -1, '') 168 self._field.SetMinSize((50, height_element)) 169 self._field.SetFont(font.normal) 170 sub_sizer.Add(self._field, 1, wx.ADJUST_MINSIZE|wx.ALIGN_CENTER_VERTICAL, 0) 171 172 # Read-only. 173 if read_only: 174 self._field.SetEditable(False) 175 colour = parent.GetBackgroundColour() 176 self._field.SetOwnBackgroundColour(colour) 177 178 # A little spacing. 179 sub_sizer.AddSpacer(5) 180 181 # The edit button. 182 button = wx.BitmapButton(parent, -1, wx.Bitmap(fetch_icon('oxygen.actions.edit-rename', "16x16"), wx.BITMAP_TYPE_ANY)) 183 button.SetMinSize((height_element, height_element)) 184 button.SetToolTipString("Edit the values.") 185 sub_sizer.Add(button, 0, wx.ADJUST_MINSIZE|wx.ALIGN_CENTER_VERTICAL, 0) 186 parent.Bind(wx.EVT_BUTTON, self.open_dialog, button) 187 188 # Right padding. 189 sub_sizer.AddSpacer(padding) 190 191 # Add to the main sizer. 192 sizer.Add(sub_sizer, 1, wx.EXPAND|wx.ALL, 0) 193 194 # Spacing below the widget. 195 if spacer == None: 196 sizer.AddStretchSpacer() 197 else: 198 sizer.AddSpacer(spacer) 199 200 # Tooltip. 201 if tooltip: 202 text.SetToolTipString(tooltip) 203 self._field.SetToolTipString(tooltip) 204 205 # Set the default value. 206 if self.default != None: 207 self._field.SetValue(self.convert_to_gui_seq(self.default)) 208 209 # Initialise the combo list input field. 210 elif self.element_type == 'combo_list': 211 # Translate the read_only flag if None. 212 if read_only == None: 213 read_only = False 214 215 # Set up the Combo_list object. 216 self._field = Combo_list(parent, sizer, desc, value_type=value_type, min_length=combo_list_min, choices=combo_choices, data=combo_data, default=default, tooltip=tooltip, read_only=read_only, can_be_none=can_be_none) 217 218 # Unknown field. 219 else: 220 raise RelaxError("Unknown element type '%s'." % self.element_type)

221 222

223 - def Clear(self):

224 """Special method for clearing or resetting the GUI element.""" 225 226 # Clear the value from a TextCtrl or ComboBox. 227 if self.element_type in ['default', 'combo_list']: 228 self._field.Clear()

229 230

231 - def GetValue(self):

232 """Special method for returning the sequence values of the GUI element. 233 234 @return: The sequence of values. 235 @rtype: sequence type 236 """ 237 238 # The value. 239 value = self._field.GetValue() 240 241 # Handle Combo_list elements. 242 if self.element_type == 'combo_list': 243 # Empty lists. 244 if value == [] or value == None: 245 return None 246 247 # Non Combo_list elements. 248 else: 249 # Handle single values. 250 value_set = False 251 if self.single_value: 252 try: 253 # Convert. 254 value = self.convert_from_gui(value) 255 256 # Check that the conversion was successful. 257 if value == None and self.can_be_none: 258 value_set = True 259 elif self.value_type == None: 260 value_set = True 261 elif self.value_type in ['float', 'num']: 262 if isinstance(value, int) or isinstance(value, float): 263 value_set = True 264 elif self.value_type == 'int': 265 if isinstance(value, int): 266 value_set = True 267 elif self.value_type == 'str': 268 if self.seq_type == 'list' and value[0] != '[': 269 value_set = True 270 elif self.seq_type == 'tuple' and value[0] != '(': 271 value_set = True 272 except: 273 pass 274 275 # Convert to a sequence, handling bad user behaviour. 276 if not value_set: 277 try: 278 value = self.convert_from_gui_seq(value) 279 280 # Set the value to None or an empty sequence. 281 except RelaxError: 282 if self.can_be_none: 283 value = None 284 elif self.seq_type == 'list': 285 value = [] 286 else: 287 value = () 288 289 # Handle all other errors. 290 except: 291 value = None 292 293 # Nothing to do. 294 if value == None: 295 return None 296 297 # Convert sequences to single values as needed. 298 if self.single_value: 299 if (isinstance(value, list) or isinstance(value, tuple)) and len(value) == 1: 300 value = value[0] 301 302 # Convert single values to sequences as needed. 303 elif value != None: 304 if self.seq_type == 'list' and not isinstance(value, list): 305 value = [value] 306 elif self.seq_type == 'tuple' and not isinstance(value, tuple): 307 value = (value,) 308 309 # Handle empty list and tuple values. 310 if not self.single_value and len(value) == 0: 311 return None 312 313 # Return the value. 314 return value

315 316

317 - def SetValue(self, value=None, index=None):

318 """Special method for setting the value of the GUI element. 319 320 @keyword value: The value to set. 321 @type value: value or list of values 322 @keyword index: The index of the value to set, if the full list is not given. 323 @type index: int or None 324 """ 325 326 # The ComboBox list. 327 if self.element_type == 'combo_list': 328 self._field.SetValue(value=value, index=index) 329 330 # The other elements. 331 else: 332 # Handle single values. 333 if self.single_value and isinstance(value, list) and len(value) == 1: 334 value = value[0] 335 336 # Convert and set the value. 337 self._field.SetValue(self.convert_to_gui_seq(value))

338 339

340 - def UpdateChoices(self, combo_choices=None, combo_data=None, combo_default=None):

341 """Special wizard method for updating the list of choices in a ComboBox type element. 342 343 @keyword combo_choices: The list of choices to present to the user. This is only used if the element_type is set to 'combo_list'. 344 @type combo_choices: list of str 345 @keyword combo_data: The data returned by a call to GetValue(). This is only used if the element_type is set to 'combo_list'. If supplied, it should be the same length at the combo_choices list. If not supplied, the combo_choices list will be used for the returned data. 346 @type combo_data: list 347 @keyword combo_default: The default value of the ComboBox. This is only used if the element_type is set to 'combo_list'. 348 @type combo_default: str or None 349 """ 350 351 # The ComboBox list. 352 if self.element_type == 'combo_list': 353 self._field.UpdateChoices(combo_choices=combo_choices, combo_data=combo_data, combo_default=combo_default)

354 355

356 - def open_dialog(self, event):

357 """Open a special dialog for inputting a list of text values. 358 359 @param event: The wx event. 360 @type event: wx event 361 """ 362 363 # Show the window. 364 self.selection_win_show() 365 366 # Extract the data from the selection window once closed. 367 self.selection_win_data() 368 369 # Destroy the window. 370 self.sel_win.Destroy() 371 del self.sel_win

372 373

374 - def selection_win_data(self):

375 """Extract the data from the selection window.""" 376 377 # Get the value. 378 value = self.sel_win.GetValue() 379 380 # No sequence data. 381 if value == None or not len(value): 382 self.Clear() 383 384 # Set the values. 385 else: 386 self.SetValue(value)

387 388

389 - def selection_win_show(self):

390 """Show the selection window.""" 391 392 # Destroy any pre-existing sequence window. 393 if hasattr(self, 'sel_win'): 394 self.sel_win.Destroy() 395 del self.sel_win 396 397 # Initialise the model selection window. 398 self.sel_win = Sequence_window(parent=self.parent, name=self.name, seq_type=self.seq_type, value_type=self.value_type, titles=self.titles, dim=self.dim) 399 400 # Set the model selector window selections. 401 self.sel_win.SetValue(self.GetValue()) 402 403 # Show the model selector window. 404 if status.show_gui: 405 self.sel_win.ShowModal() 406 self.sel_win.Close()

407 408 409

410 -class Sequence_list_ctrl(wx.ListCtrl, wx.lib.mixins.listctrl.TextEditMixin, wx.lib.mixins.listctrl.ListCtrlAutoWidthMixin):

411 """The string list ListCtrl object.""" 412

413 - def __init__(self, parent):

414 """Initialise the control. 415 416 @param parent: The parent window. 417 @type parent: wx.Frame instance 418 """ 419 420 # Execute the parent __init__() methods. 421 wx.ListCtrl.__init__(self, parent, -1, style=wx.BORDER_SUNKEN|wx.LC_REPORT|wx.LC_HRULES|wx.LC_VRULES) 422 wx.lib.mixins.listctrl.TextEditMixin.__init__(self) 423 wx.lib.mixins.listctrl.ListCtrlAutoWidthMixin.__init__(self) 424 425 # Catch edits. 426 self.Bind(wx.EVT_LIST_BEGIN_LABEL_EDIT, self.begin_label_edit)

427 428

429 - def begin_label_edit(self, event):

430 """Catch edits to make the first column read only. 431 432 @param event: The wx event. 433 @type event: wx event 434 """ 435 436 # Prevent edits in the first column. 437 if event.m_col == 0: 438 event.Veto() 439 440 # Otherwise the user is free to edit. 441 else: 442 event.Skip()

443 444 445

446 -class Sequence_window(wx.Dialog):

447 """The Python sequence object editor window.""" 448 449 # The window size. 450 SIZE = (800, 600) 451 452 # A border. 453 BORDER = 10 454 455 # Sizes. 456 SIZE_BUTTON = (150, 33) 457

458 - def __init__(self, parent=None, name='', seq_type='list', value_type='str', dim=None, titles=None):

459 """Set up the string list editor window. 460 461 @keyword parent: The parent GUI element. 462 @type parent: wx.Window instance or None 463 @keyword name: The name of the window. 464 @type name: str 465 @keyword seq_type: The type of Python sequence. This should be one of 'list' or 'tuple'. 466 @type seq_type: str 467 @keyword value_type: The type of Python data expected in the sequence. This should be one of 'float', 'int', or 'str'. 468 @type value_type: str 469 @keyword dim: The fixed dimension that the sequence must conform to. 470 @type dim: int or None 471 @keyword titles: The titles of each of the elements of the fixed dimension elements. 472 @type titles: list of str 473 """ 474 475 # Store the args. 476 self.name = name 477 self.seq_type = seq_type 478 self.value_type = value_type 479 self.dim = dim 480 self.titles = titles 481 482 # The base types. 483 if value_type in ['float', 'num']: 484 self.convert_from_gui = gui_to_float 485 self.convert_to_gui = float_to_gui 486 elif value_type == 'int': 487 self.convert_from_gui = gui_to_int 488 self.convert_to_gui = int_to_gui 489 elif value_type == 'str': 490 self.convert_from_gui = gui_to_str 491 self.convert_to_gui = str_to_gui 492 else: 493 raise RelaxError("Unknown base data type '%s'." % value_type) 494 495 # Variable length. 496 if not hasattr(self, 'variable_length'): 497 self.variable_length = False 498 self.offset = 0 499 if dim == None: 500 self.variable_length = True 501 self.offset = 1 502 503 # The title of the dialog. 504 title = "Edit the %s values." % name 505 506 # Set up the dialog. 507 wx.Dialog.__init__(self, parent, id=-1, title=title) 508 509 # Initialise some values 510 self.width = self.SIZE[0] - 2*self.BORDER 511 512 # Set the frame properties. 513 self.SetSize(self.SIZE) 514 self.Centre() 515 self.SetFont(font.normal) 516 517 # The main box sizer. 518 main_sizer = wx.BoxSizer(wx.VERTICAL) 519 520 # Pack the sizer into the frame. 521 self.SetSizer(main_sizer) 522 523 # Build the central sizer, with borders. 524 sizer = add_border(main_sizer, border=self.BORDER, packing=wx.VERTICAL) 525 526 # Add the list control. 527 self.add_list(sizer) 528 529 # Some spacing. 530 sizer.AddSpacer(self.BORDER) 531 532 # Add the bottom buttons. 533 self.add_buttons(sizer) 534 535 # Initialise the list of elements to a single element. 536 if not self.sequence.GetItemCount(): 537 self.add_element()

538 539

540 - def GetValue(self):

541 """Return the values as a sequence of values. 542 543 @return: The sequence of values. 544 @rtype: sequence type 545 """ 546 547 # Init. 548 values = [] 549 550 # Loop over the entries. 551 for i in range(self.sequence.GetItemCount()): 552 # Get the text. 553 item = self.sequence.GetItem(i, col=1) 554 text = item.GetText() 555 556 # Store the text. 557 try: 558 value = self.convert_from_gui(text) 559 except: 560 value = None 561 values.append(value) 562 563 # Sequence conversion. 564 if self.seq_type == 'tuple': 565 values = tuple(values) 566 567 # Check that something is set. 568 empty = True 569 for i in range(len(values)): 570 if values[i] != None: 571 empty = False 572 break 573 574 # Return nothing. 575 if empty: 576 return None 577 578 # Return the sequence. 579 return values

580 581

582 - def SetValue(self, values):

583 """Set up the list values. 584 585 @param values: The list of values to add to the list. 586 @type values: list of str or None 587 """ 588 589 # No value. 590 if values == None: 591 return 592 593 # Invalid list, so do nothing. 594 if not self.variable_length and is_list(values) and len(values) != self.dim: 595 return 596 597 # Single values. 598 try: 599 len(values) 600 except TypeError: 601 if self.seq_type == 'list': 602 values = [values] 603 elif self.seq_type == 'tuple': 604 values = (values,) 605 606 # Loop over the entries. 607 for i in range(len(values)): 608 # Fixed dimension sequences - set the values of the pre-created list. 609 if not self.variable_length: 610 self.sequence.SetStringItem(index=i, col=1, label=self.convert_to_gui(values[i])) 611 612 # Variable dimension sequences - append the item to the end of the blank list. 613 else: 614 # The first element already exists. 615 if i != 0: 616 # First add the index+1. 617 self.sequence.InsertStringItem(i, int_to_gui(i+1)) 618 619 # Then set the value. 620 self.sequence.SetStringItem(index=i, col=1, label=self.convert_to_gui(values[i]))

621 622

623 - def add_buttons(self, sizer):

624 """Add the buttons to the sizer. 625 626 @param sizer: A sizer object. 627 @type sizer: wx.Sizer instance 628 """ 629 630 # Create a horizontal layout for the buttons. 631 button_sizer = wx.BoxSizer(wx.HORIZONTAL) 632 sizer.Add(button_sizer, 0, wx.ALIGN_CENTER|wx.ALL, 0) 633 634 # The non-fixed sequence buttons. 635 if self.variable_length: 636 # The add button. 637 button = wx.lib.buttons.ThemedGenBitmapTextButton(self, -1, None, " Add") 638 button.SetBitmapLabel(wx.Bitmap(fetch_icon('oxygen.actions.list-add-relax-blue', "22x22"), wx.BITMAP_TYPE_ANY)) 639 button.SetFont(font.normal) 640 button.SetToolTipString("Add an item to the list.") 641 button.SetMinSize(self.SIZE_BUTTON) 642 button_sizer.Add(button, 0, wx.ADJUST_MINSIZE, 0) 643 self.Bind(wx.EVT_BUTTON, self.add_element, button) 644 645 # Spacer. 646 button_sizer.AddSpacer(20) 647 648 # The delete button. 649 button = wx.lib.buttons.ThemedGenBitmapTextButton(self, -1, None, " Delete") 650 button.SetBitmapLabel(wx.Bitmap(fetch_icon('oxygen.actions.list-remove', "22x22"), wx.BITMAP_TYPE_ANY)) 651 button.SetFont(font.normal) 652 button.SetToolTipString("Delete the last item.") 653 button.SetMinSize(self.SIZE_BUTTON) 654 button_sizer.Add(button, 0, wx.ADJUST_MINSIZE, 0) 655 self.Bind(wx.EVT_BUTTON, self.delete, button) 656 657 # Spacer. 658 button_sizer.AddSpacer(20) 659 660 # The delete all button. 661 button = wx.lib.buttons.ThemedGenBitmapTextButton(self, -1, None, " Delete all") 662 button.SetBitmapLabel(wx.Bitmap(fetch_icon('oxygen.actions.edit-delete', "22x22"), wx.BITMAP_TYPE_ANY)) 663 button.SetFont(font.normal) 664 button.SetToolTipString("Delete all items.") 665 button.SetMinSize(self.SIZE_BUTTON) 666 button_sizer.Add(button, 0, wx.ADJUST_MINSIZE, 0) 667 self.Bind(wx.EVT_BUTTON, self.delete_all, button) 668 669 # Spacer. 670 button_sizer.AddSpacer(20) 671 672 # The Ok button. 673 button = wx.lib.buttons.ThemedGenBitmapTextButton(self, -1, None, " Ok") 674 button.SetBitmapLabel(wx.Bitmap(fetch_icon('oxygen.actions.dialog-ok', "22x22"), wx.BITMAP_TYPE_ANY)) 675 button.SetFont(font.normal) 676 button.SetMinSize(self.SIZE_BUTTON) 677 button_sizer.Add(button, 0, wx.ADJUST_MINSIZE, 0) 678 self.Bind(wx.EVT_BUTTON, self.close, button)

679 680

681 - def add_element(self, event=None):

682 """Append a new row to the list. 683 684 @keyword event: The wx event. 685 @type event: wx event 686 """ 687 688 # The next index. 689 next = self.sequence.GetItemCount() 690 691 # Add a new row with the index at the start. 692 if self.variable_length: 693 self.sequence.InsertStringItem(next, int_to_gui(next+1)) 694 695 # Add a new empty row. 696 else: 697 self.sequence.InsertStringItem(next, str_to_gui(''))

698 699

700 - def add_list(self, sizer):

701 """Set up the list control. 702 703 @param sizer: A sizer object. 704 @type sizer: wx.Sizer instance 705 """ 706 707 # The control. 708 self.sequence = Sequence_list_ctrl(self) 709 710 # Set the column title. 711 title = "%s%s" % (self.name[0].upper(), self.name[1:]) 712 713 # Add the index column. 714 if self.titles: 715 self.sequence.InsertColumn(0, "Title") 716 self.sequence.SetColumnWidth(0, 200) 717 else: 718 self.sequence.InsertColumn(0, "Number") 719 self.sequence.SetColumnWidth(0, 70) 720 721 # Add a single column, full width. 722 self.sequence.InsertColumn(1, title) 723 self.sequence.SetColumnWidth(1, wx.LIST_AUTOSIZE) 724 725 # Add the table to the sizer. 726 sizer.Add(self.sequence, 1, wx.ALL|wx.EXPAND, 0) 727 728 # The fixed dimension sequence - add all the rows needed. 729 if not self.variable_length: 730 for i in range(self.dim): 731 # Add a new row. 732 self.add_element() 733 734 # Add a title to the first column. 735 if self.titles: 736 self.sequence.SetStringItem(i, 0, str_to_gui(self.titles[i])) 737 738 # Otherwise add numbers starting from 1. 739 else: 740 self.sequence.SetStringItem(i, 0, int_to_gui(i+1))

741 742

743 - def close(self, event):

744 """Close the window. 745 746 @param event: The wx event. 747 @type event: wx event 748 """ 749 750 # Close the window. 751 self.Close()

752 753

754 - def delete(self, event):

755 """Remove the last item from the list. 756 757 @param event: The wx event. 758 @type event: wx event 759 """ 760 761 # Delete the last item. 762 item = self.sequence.GetItemCount() 763 self.sequence.DeleteItem(item-1) 764 765 # If the list is empty, start again with a single blank element. 766 if not self.sequence.GetItemCount(): 767 self.add_element()

768 769

770 - def delete_all(self, event):

771 """Remove all items from the list. 772 773 @param event: The wx event. 774 @type event: wx event 775 """ 776 777 # Delete. 778 self.sequence.DeleteAllItems() 779 780 # Start again with a single blank element. 781 self.add_element()

782

Source Code for Module gui.input_elements.sequence