|
356
|
1 |
"
|
|
|
2 |
COPYRIGHT (c) 1995 by Claus Gittinger
|
|
|
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 |
Object subclass:#Geometric
|
|
|
14 |
instanceVariableNames:''
|
|
|
15 |
classVariableNames:''
|
|
|
16 |
poolDictionaries:''
|
|
|
17 |
category:'Graphics-Geometry'
|
|
|
18 |
!
|
|
|
19 |
|
|
|
20 |
Geometric comment:'
|
|
|
21 |
COPYRIGHT (c) 1995 by Claus Gittinger
|
|
|
22 |
All Rights Reserved
|
|
|
23 |
|
|
384
|
24 |
$Header: /cvs/stx/stx/libbasic/Geometric.st,v 1.3 1995-08-11 03:01:01 claus Exp $
|
|
356
|
25 |
'!
|
|
|
26 |
|
|
|
27 |
!Geometric class methodsFor:'documentation'!
|
|
|
28 |
|
|
|
29 |
copyright
|
|
|
30 |
"
|
|
|
31 |
COPYRIGHT (c) 1995 by Claus Gittinger
|
|
|
32 |
All Rights Reserved
|
|
|
33 |
|
|
|
34 |
This software is furnished under a license and may be used
|
|
|
35 |
only in accordance with the terms of that license and with the
|
|
|
36 |
inclusion of the above copyright notice. This software may not
|
|
|
37 |
be provided or otherwise made available to, or used by, any
|
|
|
38 |
other person. No title to or ownership of the software is
|
|
|
39 |
hereby transferred.
|
|
|
40 |
"
|
|
|
41 |
!
|
|
|
42 |
|
|
|
43 |
version
|
|
|
44 |
"
|
|
384
|
45 |
$Header: /cvs/stx/stx/libbasic/Geometric.st,v 1.3 1995-08-11 03:01:01 claus Exp $
|
|
356
|
46 |
"
|
|
|
47 |
!
|
|
|
48 |
|
|
|
49 |
documentation
|
|
|
50 |
"
|
|
|
51 |
Abstract superclass for geometric figures.
|
|
|
52 |
Concrete classes are (currently) Rectangle, Polygon and the classes
|
|
|
53 |
found in goodies/shape.
|
|
|
54 |
|
|
|
55 |
These are not graphical objects, but pure mathematical ones.
|
|
|
56 |
I.e. instances do not carry graphics attributes such as color, lineWidth etc.
|
|
|
57 |
Use instances of (subclasses) of DisplayObject or (the soon to be
|
|
|
58 |
implemented GraphicsAttributesWrapper.
|
|
|
59 |
|
|
|
60 |
Notice: ST/X does not use Geometric instances for drawing (yet).
|
|
|
61 |
This class exists mainly to provide have a superclass around,
|
|
|
62 |
when ST-80 geometry classes are to be filed in.
|
|
|
63 |
"
|
|
|
64 |
! !
|
|
|
65 |
|
|
|
66 |
!Geometric methodsFor:'displaying'!
|
|
|
67 |
|
|
|
68 |
displayOn:aGC
|
|
|
69 |
"display myself on a graphicsContext; the current graphics
|
|
|
70 |
attributes are used. The default here is to display the outline."
|
|
|
71 |
|
|
|
72 |
^ self displayStrokedOn:aGC
|
|
|
73 |
!
|
|
|
74 |
|
|
|
75 |
displayStrokedOn:aGC
|
|
|
76 |
"display my outline on a graphicsContext; the current graphics
|
|
|
77 |
attributes are usedSince we do not know how to do it, nothing is
|
|
|
78 |
drawn here."
|
|
|
79 |
|
|
|
80 |
"/ could be:
|
|
|
81 |
"/ ^ self subclassResponsibility
|
|
|
82 |
|
|
|
83 |
^ self
|
|
|
84 |
!
|
|
|
85 |
|
|
|
86 |
displayFilledOn:aGC
|
|
|
87 |
"display myself filled on a graphicsContext; the current graphics
|
|
|
88 |
attributes are used. Since we do not know how to do it, nothing is
|
|
|
89 |
drawn here."
|
|
|
90 |
|
|
|
91 |
"/ could be:
|
|
|
92 |
"/ ^ self subclassResponsibility
|
|
|
93 |
|
|
|
94 |
^ self
|
|
|
95 |
! !
|
|
|
96 |
|