author | tz |
Mon, 22 Dec 1997 21:49:38 +0100 | |
changeset 390 | 33052a6da128 |
parent 378 | 9057ea063eca |
child 399 | 0822ecf56bf2 |
permissions | -rw-r--r-- |
120 | 1 |
" |
2 |
COPYRIGHT (c) 1997 by eXept Software AG |
|
3 |
All Rights Reserved |
|
4 |
||
5 |
This software is furnished under a license and may be used |
|
6 |
only in accordance with the terms of that license and with the |
|
7 |
inclusion of the above copyright notice. This software may not |
|
8 |
be provided or otherwise made available to, or used by, any |
|
9 |
other person. No title to or ownership of the software is |
|
10 |
hereby transferred. |
|
11 |
" |
|
12 |
||
13 |
||
14 |
||
15 |
||
16 |
Object subclass:#ResourceRetriever |
|
17 |
instanceVariableNames:'className resourceOwner selector labelText' |
|
18 |
classVariableNames:'' |
|
19 |
poolDictionaries:'' |
|
200 | 20 |
category:'Interface-Support-UI' |
120 | 21 |
! |
22 |
||
23 |
!ResourceRetriever class methodsFor:'documentation'! |
|
24 |
||
25 |
copyright |
|
26 |
" |
|
27 |
COPYRIGHT (c) 1997 by eXept Software AG |
|
28 |
All Rights Reserved |
|
29 |
||
30 |
This software is furnished under a license and may be used |
|
31 |
only in accordance with the terms of that license and with the |
|
32 |
inclusion of the above copyright notice. This software may not |
|
33 |
be provided or otherwise made available to, or used by, any |
|
34 |
other person. No title to or ownership of the software is |
|
35 |
hereby transferred. |
|
36 |
" |
|
37 |
||
38 |
||
39 |
||
40 |
! |
|
41 |
||
42 |
documentation |
|
43 |
" |
|
373 | 44 |
ST80 compatibility class. |
45 |
||
46 |
The class is not completed yet and certainly not bug free. |
|
47 |
Also, it is not guaranteed that all winSpecs are understood. |
|
120 | 48 |
|
373 | 49 |
Notice: |
50 |
this class was implemented using protocol information |
|
51 |
from alpha testers, literature and by reading public domain code |
|
52 |
- it may not be complete or compatible to |
|
53 |
the corresponding ST-80 class. |
|
54 |
If you encounter any incompatibilities, please forward a note |
|
55 |
describing the incompatibility verbal (i.e. no code) to the ST/X team. |
|
120 | 56 |
|
57 |
[author:] |
|
58 |
Claus Atzkern |
|
59 |
||
60 |
[see also:] |
|
61 |
Application |
|
62 |
Menu |
|
63 |
MenuItem |
|
64 |
" |
|
65 |
||
66 |
||
67 |
||
68 |
! ! |
|
69 |
||
70 |
!ResourceRetriever methodsFor:'accessing'! |
|
71 |
||
72 |
className |
|
73 |
"return the value of the instance variable 'className' (automatically generated)" |
|
74 |
||
75 |
^ className! |
|
76 |
||
77 |
className:something |
|
78 |
"set the class which provides the resources |
|
79 |
" |
|
80 |
className := something. |
|
81 |
resourceOwner := nil. |
|
82 |
! |
|
83 |
||
198 | 84 |
labelText |
85 |
^ labelText |
|
86 |
! |
|
87 |
||
88 |
labelText:aText |
|
89 |
labelText := aText |
|
90 |
! |
|
91 |
||
120 | 92 |
selector |
93 |
"return the value of the instance variable 'selector' (automatically generated)" |
|
94 |
||
95 |
^ selector! |
|
96 |
||
97 |
selector:something |
|
98 |
"set the value of the instance variable 'selector' (automatically generated)" |
|
99 |
||
100 |
selector := something. |
|
101 |
! |
|
102 |
||
103 |
value |
|
373 | 104 |
"returns the value assigned to resource or nil |
120 | 105 |
" |
106 |
|resource| |
|
107 |
||
108 |
(resource := self resource) isNil ifTrue:[ |
|
109 |
^ labelText |
|
110 |
]. |
|
111 |
||
112 |
(labelText notNil and:[resource isImage]) ifTrue:[ |
|
378
9057ea063eca
use font derived from style sheet; no default Text object
ca
parents:
373
diff
changeset
|
113 |
^ LabelAndIcon icon:resource string:labelText |
120 | 114 |
]. |
115 |
^ resource |
|
373 | 116 |
|
117 |
"Modified: / 31.10.1997 / 12:10:05 / cg" |
|
120 | 118 |
! ! |
119 |
||
120 |
!ResourceRetriever methodsFor:'accessing resource'! |
|
121 |
||
122 |
findGuiResourcesIn:aResourceContainer |
|
123 |
"setup a resource owner |
|
124 |
" |
|
125 |
className isNil ifTrue:[ |
|
126 |
resourceOwner := aResourceContainer |
|
127 |
]. |
|
128 |
! |
|
129 |
||
130 |
resource |
|
373 | 131 |
"returns a form assigned to resource or nil |
120 | 132 |
" |
331 | 133 |
|img cls appl| |
226 | 134 |
|
120 | 135 |
selector isNil ifTrue:[ |
136 |
^nil |
|
137 |
]. |
|
138 |
||
139 |
resourceOwner isNil ifTrue:[ |
|
343 | 140 |
(resourceOwner := Smalltalk resolveName:className inClass:self class) isNil ifTrue:[ |
120 | 141 |
^ nil |
142 |
] |
|
143 |
]. |
|
320 | 144 |
|
226 | 145 |
(resourceOwner respondsTo:#visualFor:) ifTrue:[ |
146 |
(img := resourceOwner visualFor:selector) notNil ifTrue:[ |
|
147 |
^ img |
|
148 |
] |
|
149 |
]. |
|
320 | 150 |
|
151 |
(resourceOwner respondsTo:selector) ifTrue:[ |
|
152 |
^ resourceOwner perform:selector |
|
153 |
]. |
|
154 |
||
155 |
resourceOwner isClass ifFalse:[ |
|
156 |
cls := resourceOwner class. |
|
157 |
||
158 |
(cls respondsTo:selector) ifTrue:[ |
|
159 |
^ cls perform:selector |
|
160 |
] |
|
161 |
]. |
|
162 |
^ nil |
|
163 |
||
373 | 164 |
"Modified: / 31.10.1997 / 12:09:52 / cg" |
120 | 165 |
! ! |
166 |
||
167 |
!ResourceRetriever methodsFor:'converting'! |
|
168 |
||
169 |
fromLiteralArrayEncoding:anArray |
|
170 |
"read my values from an encoding. |
|
171 |
" |
|
172 |
className := anArray at: 2. |
|
173 |
selector := anArray at: 3. |
|
174 |
||
175 |
anArray size == 4 ifTrue:[ |
|
176 |
labelText := anArray at:4 |
|
177 |
]. |
|
178 |
resourceOwner := nil. |
|
179 |
||
180 |
! |
|
181 |
||
182 |
literalArrayEncoding |
|
183 |
"encode myself as an array, from which a copy of the receiver can be |
|
184 |
reconstructed with #decodeAsLiteralArray. |
|
185 |
||
186 |
The encoding is: |
|
187 |
(#ResourceRetriever className selector) |
|
188 |
||
189 |
or if labelText not nil: |
|
190 |
(#ResourceRetriever className selector labelText) |
|
191 |
" |
|
192 |
labelText isNil ifTrue:[ |
|
193 |
^ Array with:(self class name) with:className with:selector |
|
194 |
] ifFalse:[ |
|
195 |
^ Array with:(self class name) with:className with:selector with:labelText |
|
196 |
]. |
|
197 |
||
198 |
! ! |
|
199 |
||
200 |
!ResourceRetriever methodsFor:'testing'! |
|
201 |
||
202 |
isDefined |
|
203 |
"returns true if resource exists |
|
204 |
" |
|
205 |
selector notNil ifTrue:[ |
|
206 |
^ (resourceOwner notNil or:[className notNil]) |
|
207 |
]. |
|
208 |
^ false |
|
209 |
! |
|
210 |
||
211 |
notDefined |
|
212 |
"returns false if resource is not defined |
|
213 |
" |
|
214 |
self isDefined ifTrue:[^ false ] |
|
215 |
ifFalse:[^ true ] |
|
216 |
! ! |
|
217 |
||
218 |
!ResourceRetriever class methodsFor:'documentation'! |
|
219 |
||
220 |
version |
|
221 |
^ '$Header$' |
|
222 |
! ! |