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annotate m-toolbox/m/gui/@jcontrol/subsasgn.m @ 36:5eb86f6881ef database-connection-manager

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Remove commented-out code
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
parents f0afece42f48
children
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 function obj=subsasgn(obj, index, val)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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2 % SUBSASGN method overloaded for JCONTROL class
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Daniele Nicolodi <nicolodi@science.unitn.it>
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3 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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4 % subsasgn provides access to JCONTROL properties via MATLAB's dot notation
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Daniele Nicolodi <nicolodi@science.unitn.it>
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5 % Examples:
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6 % obj.Units='characters';
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7 % obj.Enabled=1
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8 % obj.hgcontainer.Opaque='on'
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9 %
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10 % obj may be an element of a JCONTROL vector e.g.
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11 % obj(3).Units='pixels';
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12 %
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13 % See also: jcontrol
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14 % -------------------------------------------------------------------------
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15 % Author: Malcolm Lidierth 06/07
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16 % Copyright © The Author & King's College London 2007
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17 % -------------------------------------------------------------------------
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18
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19 % Note: Left-hand assignments are not needed with dot assignments
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20 % because both the hgcontainer and the hgcontrol are passed by reference
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Daniele Nicolodi <nicolodi@science.unitn.it>
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21 % rather than by value.
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22 % With () calls, left-hand assignments are needed when initializing an
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Daniele Nicolodi <nicolodi@science.unitn.it>
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23 % element. In these cases the caller workspace will contain a reference to
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Daniele Nicolodi <nicolodi@science.unitn.it>
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24 % the JCONTROL set up by subsasgn or passed to subsasgn by MATLAB in val.
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Daniele Nicolodi <nicolodi@science.unitn.it>
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25 % In all cases, changes here to JCONTROL properties affect the original
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26 % JCONTROL contents, and all copies of them in all MATLAB workspaces.
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27
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28 switch index(1).type
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29 case '.'
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30 switch lower(index(1).subs)
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31 case {'hgcontainer' 'hgcontrol' 'hghandle'}
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32 if length(index)==1 || strcmp(index(1).subs,'hghandle')
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33 error('The %s property is not settable',index(1).subs);
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34 else
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35 subsasgn(obj.(index(1).subs), index(2:end), val);
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36 end
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37 otherwise
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Daniele Nicolodi <nicolodi@science.unitn.it>
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38 % obj.property/method where the property could be in hgcontainer
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Daniele Nicolodi <nicolodi@science.unitn.it>
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39 % or hgcontrol. Find out which and invoke appropriate subsasgn
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40 if isprop(obj.hgcontainer, index(1).subs) &&...
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41 isprop(obj.hgcontrol, index(1).subs)
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42 if strcmpi(index(end).subs,'visible')
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43 % Set Visible property in the container, MATLAB will
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44 % update the hgcontrol
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45 obj.hgcontainer.Visible=VisibleProperty(val);
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46 return
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47 else
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48 error('Shared property name ''%s''\nYou must explicitly specify the target object',...
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49 index(1).subs);
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50 end
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51 end
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52 if isprop(obj.hgcontainer, index(1).subs)
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53 % hgcontainer property
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54 subsasgn(obj.hgcontainer, index, val);
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55 elseif isprop(obj.hgcontrol, index(1).subs) || ismethod(obj.hgcontrol,index(1).subs)
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56 % hgcontrol property or method
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57 subsasgn(obj.hgcontrol, index, val);
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58 else
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59 error('No such property or method');
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60 end
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61 end
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62 case '()'
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63 % obj is empty so initialize
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64 if isempty(obj)
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65 % Assign first element - avoids conversion to double errors
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66 % when initializing with subscripts
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67 obj=jcontrol();
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68 % Set the target element - need not already exist
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69 obj(index(1).subs{1})=val;
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70 return
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71 end
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72
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73 if strcmp(class(val),'jcontrol')
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74 % Initializing or adding element to an array
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75 obj(index(1).subs{1})=val;
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76 else
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77 % Assigning field to pre-existing element
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78 if isvector(obj) && length(index(1).subs)==1 &&...
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79 index(1).subs{1}<=length(obj)
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80 subsasgn(obj(index(1).subs{1}), index(2:end), val);
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81 elseif ~isvector(obj) || length(index(1).subs)>1
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82 error('Scalar or vector JCONTROL and index required on input');
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83 elseif index(1).subs{1}>length(obj)
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84 error('Index exceeds length of JCONTROL vector');
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85 end
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86 end
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87 end
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88 return
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89 end
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90