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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
# Generic Split implementation.
# Use as a base class for other splits.
# Derived classes should at least implement the methods that call
# unimpl() below: minsize(), getbounds() and setbounds().
Error = 'Split.Error' # Exception
import rect
class Split():
#
# Calls from creator
# NB derived classes may add parameters to create()
#
def create(self, parent):
parent.addchild(self)
self.parent = parent
self.children = []
self.mouse_interest = []
self.keybd_interest = []
self.timer_interest = []
self.altdraw_interest = []
self.mouse_focus = 0
return self
#
# Downcalls from parent to child
#
def destroy(self):
self.parent = None
for child in self.children:
child.destroy()
del self.children[:]
del self.mouse_interest[:]
del self.keybd_interest[:]
del self.timer_interest[:]
del self.altdraw_interest[:]
self.mouse_focus = None
#
def minsize(self, m): return unimpl() # Should ask children
def getbounds(self): return unimpl()
def setbounds(self, bounds): unimpl() # Should tell children
#
def realize(self):
for child in self.children:
child.realize()
#
def draw(self, d_detail):
# (Could avoid calls to children outside the area)
for child in self.children:
child.draw(d_detail)
#
def altdraw(self, detail):
for child in self.altdraw_interest:
child.altdraw(detail)
#
# Downcalls only made after certain upcalls
#
def mouse_down(self, detail):
if self.mouse_focus:
self.mouse_focus.mouse_down(detail)
p = detail[0]
for child in self.mouse_interest:
if rect.pointinrect(p, child.getbounds()):
self.mouse_focus = child
child.mouse_down(detail)
def mouse_move(self, detail):
if self.mouse_focus:
self.mouse_focus.mouse_move(detail)
def mouse_up(self, detail):
if self.mouse_focus:
self.mouse_focus.mouse_up(detail)
self.mouse_focus = 0
#
def keybd(self, type_detail):
for child in self.keybd_interest:
child.keybd(type_detail)
#
def timer(self):
for child in self.timer_interest:
child.timer()
#
# Upcalls from child to parent
#
def addchild(self, child):
if child in self.children:
raise Error, 'addchild: child already inlist'
self.children.append(child)
def delchild(self, child):
if child not in self.children:
raise Error, 'delchild: child not in list'
self.children.remove(child)
if child in self.mouse_interest:
self.mouse_interest.remove(child)
if child in self.keybd_interest:
self.keybd_interest.remove(child)
if child in self.timer_interest:
self.timer_interest.remove(child)
if child in self.altdraw_interest:
self.altdraw_interest.remove(child)
if child = self.mouse_focus:
self.mouse_focus = 0
#
def need_mouse(self, child):
if child not in self.mouse_interest:
self.mouse_interest.append(child)
self.parent.need_mouse(self)
def no_mouse(self, child):
if child in self.mouse_interest:
self.mouse_interest.remove(child)
if not self.mouse_interest:
self.parent.no_mouse(self)
#
def need_keybd(self, child):
if child not in self.keybd_interest:
self.keybd_interest.append(child)
self.parent.need_keybd(self)
def no_keybd(self, child):
if child in self.keybd_interest:
self.keybd_interest.remove(child)
if not self.keybd_interest:
self.parent.no_keybd(self)
#
def need_timer(self, child):
if child not in self.timer_interest:
self.timer_interest.append(child)
self.parent.need_timer(self)
def no_timer(self, child):
if child in self.timer_interest:
self.timer_interest.remove(child)
if not self.timer_interest:
self.parent.no_timer(self)
#
def need_altdraw(self, child):
if child not in self.altdraw_interest:
self.altdraw_interest.append(child)
self.parent.need_altdraw(self)
def no_altdraw(self, child):
if child in self.altdraw_interest:
self.altdraw_interest.remove(child)
if not self.altdraw_interest:
self.parent.no_altdraw(self)
#
# The rest are transparent:
#
def begindrawing(self):
return self.parent.begindrawing()
def beginmeasuring(self):
return self.parent.beginmeasuring()
def getwindow(self):
return self.parent.getwindow()
#
def change(self, area):
self.parent.change(area)
def scroll(self, area_vector):
self.parent.scroll(area_vector)
def settimer(self, itimer):
self.parent.settimer(itimer)
|
