Package user_functions :: Module state
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Source Code for Module user_functions.state

  1  ############################################################################### 
  2  #                                                                             # 
  3  # Copyright (C) 2003-2004,2007,2009,2012 Edward d'Auvergne                    # 
  4  #                                                                             # 
  5  # This file is part of the program relax (http://www.nmr-relax.com).          # 
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 12  # This program is distributed in the hope that it will be useful,             # 
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 15  # GNU General Public License for more details.                                # 
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 18  # along with this program.  If not, see <http://www.gnu.org/licenses/>.       # 
 19  #                                                                             # 
 20  ############################################################################### 
 21   
 22  # Module docstring. 
 23  """The state user function definitions.""" 
 24   
 25  # relax module imports. 
 26  from pipe_control.state import load_state, save_state 
 27  from user_functions.data import Uf_info; uf_info = Uf_info() 
 28  from user_functions.objects import Desc_container 
 29  from user_functions.wildcards import WILDCARD_RELAX_SAVE 
 30   
 31   
 32  # The user function class. 
 33  uf_class = uf_info.add_class('state') 
 34  uf_class.title = "Class for saving or loading the program state." 
 35  uf_class.menu_text = "&state" 
 36  uf_class.gui_icon = "relax.relax" 
 37   
 38   
 39  # The state.load user function. 
 40  uf = uf_info.add_uf('state.load') 
 41  uf.title = "Load a saved program state." 
 42  uf.title_short = "Saved state loading." 
 43  uf.add_keyarg( 
 44      name = "state", 
 45      default = "state.bz2", 
 46      arg_type = "file sel read", 
 47      desc_short = "file name", 
 48      desc = "The file name, which can be a string or a file descriptor object, of a saved program state.", 
 49      wiz_filesel_wildcard = WILDCARD_RELAX_SAVE, 
 50      wiz_filesel_preview = False 
 51  ) 
 52  uf.add_keyarg( 
 53      name = "dir", 
 54      arg_type = "dir", 
 55      desc_short = "directory name", 
 56      desc = "The name of the directory in which the file is found.", 
 57      can_be_none = True 
 58  ) 
 59  uf.add_keyarg( 
 60      name = "force", 
 61      default = False, 
 62      basic_types = ["bool"], 
 63      desc_short = "force flag", 
 64      desc = "A boolean flag which if True will cause the current program state to be overwritten." 
 65  ) 
 66  # Description. 
 67  uf.desc.append(Desc_container()) 
 68  uf.desc[-1].add_paragraph("This is able to handle uncompressed, bzip2 compressed files, or gzip compressed files automatically.  The full file name including extension can be supplied, however, if the file cannot be found, this function will search for the file name with '.bz2' appended followed by the file name with '.gz' appended.") 
 69  uf.desc[-1].add_paragraph("For more advanced users, file descriptor objects are supported.  If the force flag is set to True, then the relax data store will be reset prior to the loading of the saved state.") 
 70  # Prompt examples. 
 71  uf.desc.append(Desc_container("Prompt examples")) 
 72  uf.desc[-1].add_paragraph("The following commands will load the state saved in the file 'save'.") 
 73  uf.desc[-1].add_prompt("relax> state.load('save')") 
 74  uf.desc[-1].add_prompt("relax> state.load(state='save')") 
 75  uf.desc[-1].add_paragraph("Use one of the following commands to load the state saved in the bzip2 compressed file 'save.bz2':") 
 76  uf.desc[-1].add_prompt("relax> state.load('save')") 
 77  uf.desc[-1].add_prompt("relax> state.load(state='save')") 
 78  uf.desc[-1].add_prompt("relax> state.load('save.bz2')") 
 79  uf.desc[-1].add_prompt("relax> state.load(state='save.bz2', force=True)") 
 80  uf.backend = load_state 
 81  uf.menu_text = "&load" 
 82  uf.gui_icon = "oxygen.actions.document-open" 
 83  uf.wizard_size = (800, 600) 
 84  uf.gui_sync = True    # Force synchronous operation to avoid races in the GUI. 
 85   
 86   
 87  # The state.save user function. 
 88  uf = uf_info.add_uf('state.save') 
 89  uf.title = "Save the program state." 
 90  uf.title_short = "Saving state." 
 91  uf.add_keyarg( 
 92      name = "state", 
 93      default = "state.bz2", 
 94      arg_type = "file sel write", 
 95      desc_short = "file name", 
 96      desc = "The file name, which can be a string or a file descriptor object, to save the current program state in.", 
 97      wiz_filesel_wildcard = WILDCARD_RELAX_SAVE, 
 98  ) 
 99  uf.add_keyarg( 
100      name = "dir", 
101      arg_type = "dir", 
102      desc_short = "directory name", 
103      desc = "The name of the directory in which to place the file.", 
104      can_be_none = True 
105  ) 
106  uf.add_keyarg( 
107      name = "compress_type", 
108      default = 1, 
109      basic_types = ["int"], 
110      desc_short = "compression type", 
111      desc = "The type of compression to use when creating the file.", 
112      wiz_element_type = "combo", 
113      wiz_combo_choices = ["No compression", "bzip2 compression", "gzip compression"], 
114      wiz_combo_data = [0, 1, 2] 
115  ) 
116  uf.add_keyarg( 
117      name = "force", 
118      default = False, 
119      basic_types = ["bool"], 
120      desc_short = "force flag", 
121      desc = "A boolean flag which if set to True will cause the file to be overwritten." 
122  ) 
123  # Description. 
124  uf.desc.append(Desc_container()) 
125  uf.desc[-1].add_paragraph("This will place the program state - the relax data store - into a file for later reloading or reference.  The default format is an XML formatted file.") 
126  uf.desc[-1].add_paragraph("The default behaviour of this function is to compress the file using bzip2 compression.  If the extension '.bz2' is not included in the file name, it will be added.  The compression can, however, be changed to either no compression or gzip compression.  This is controlled by the compression type which can be set to") 
127  uf.desc[-1].add_item_list_element("0", "No compression (no file extension).") 
128  uf.desc[-1].add_item_list_element("1", "bzip2 compression ('.bz2' file extension).") 
129  uf.desc[-1].add_item_list_element("2", "gzip compression ('.gz' file extension).") 
130  # Prompt examples. 
131  uf.desc.append(Desc_container("Prompt examples")) 
132  uf.desc[-1].add_paragraph("The following commands will save the current program state, uncompressed, into the file 'save':") 
133  uf.desc[-1].add_prompt("relax> state.save('save', compress_type=0)") 
134  uf.desc[-1].add_prompt("relax> state.save(state='save', compress_type=0)") 
135  uf.desc[-1].add_paragraph("The following commands will save the current program state into the bzip2 compressed file 'save.bz2':") 
136  uf.desc[-1].add_prompt("relax> state.save('save')") 
137  uf.desc[-1].add_prompt("relax> state.save(state='save')") 
138  uf.desc[-1].add_prompt("relax> state.save('save.bz2')") 
139  uf.desc[-1].add_prompt("relax> state.save(state='save.bz2')") 
140  uf.desc[-1].add_paragraph("If the file 'save' already exists, the following commands will save the current program state by overwriting the file.") 
141  uf.desc[-1].add_prompt("relax> state.save('save', force=True)") 
142  uf.desc[-1].add_prompt("relax> state.save(state='save', force=True)") 
143  uf.backend = save_state 
144  uf.menu_text = "&save" 
145  uf.gui_icon = "oxygen.actions.document-save" 
146  uf.wizard_height_desc = 400 
147  uf.wizard_size = (900, 700) 
148