1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
# Copyright 2006-2007 Nanorex, Inc. See LICENSE file for details.
"""
widget2d.py
$Id$
"""
###e rename module, to same caps? hmm, maybe just to widget, since it has that class too? or move that class?
from OpenGL.GL import GL_FALSE
from OpenGL.GL import glColorMask
from OpenGL.GL import GL_TRUE
from OpenGL.GL import glPushName
from OpenGL.GL import glPopName
from exprs.instance_helpers import InstanceOrExpr
from exprs.py_utils import printnim
from exprs.__Symbols__ import _self
from exprs.Exprs import V_expr
class Widget(InstanceOrExpr):
# Widget can also be used as a typename -- ok??
# I guess that just means it can be used to coerce things... see docstring-comment in Widget2D. #####@@@@@
"""Class whose Instances will be drawable. [#doc more]"""
## methods moved into superclass 070201
pass # end of class Widget
# ==
class Widget2D(Widget):
"""1. superclass for widget instances with 2D layout boxes (with default layout-box formulas).
Also an expr-forming helper class, in this role
(as is any InstanceOrExpr).
2. can coerce most drawable instances into (1).
WARNING: I DON'T YET KNOW IF THOSE TWO ROLES ARE COMPATIBLE.
"""
# default layout-box formulas
# bright is bbox size on right, bleft on left (both positive or zero) #e rename, bright is a word
printnim("lbox defaults are not customizable -- wrong??")
#k is this still true?? if so, is it wrong? IIRC old cmts suggest a fix... [070121]
bright = 0
btop = 0
bleft = 0
bbottom = 0
## width = bleft + bright # this would be ok if bleft etc were exprs; since they're constants we have to say _self explicitly
## height = bbottom + btop
width = _self.bleft + _self.bright
height = _self.bbottom + _self.btop
center = V_expr( (_self.bright - _self.bleft) / 2.0, (_self.btop - _self.bbottom) / 2.0, 0.0) # 070227 moved here from Rect
pass # end of class Widget2D
# ==
class _misc_old_code: # not used now, maybe useful someday
# helper methods (some really belong on other objects)
def disable_color(self): ### really should be a glpane method
"don't draw color pixels (but keep drawing depth pixels, if you were)"
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE)
pass
def enable_color(self):
# nested ones would break, due to this in the inner one -- could be fixed by a counter, if we used them in matched pairs
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE)
pass
def push_saved_names(self): # truer args would be: both glpane and transient_state object
for glname in self.saved_glnames:
glPushName(glname)
def pop_saved_names(self):
for glname in self.saved_glnames: # wrong order, but only the total number matters
glPopName()
pass
# lowercase stub doesn't work for the following, since they get called during import, so use uppercase Stub
# need InstanceOrExpr defined for this one:
Stub = Widget2D # use this for stub InstanceOrExpr subclasses
# end
|
