blob: 72397218891078c6df31c3c0bd76f8011348262d (
plain)
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
158
159
160
161
162
163
164
|
<?xml version="1.0" ?>
<scxml xmlns="http://www.w3.org/2005/07/scxml" version="1.0"
initial="wrapper" datamodel="ecmascript" name="CalculatorStateMachine">
<datamodel>
<data id="long_expr" />
<data id="short_expr" />
<data id="res" />
</datamodel>
<state id="wrapper" initial="on">
<state id="on" initial="ready">
<onentry>
<send event="DISPLAY.UPDATE" />
</onentry>
<state id="ready" initial="begin">
<state id="begin">
<transition event="OPER.MINUS" target="negated1" />
<onentry>
<assign location="long_expr" expr="''" />
<assign location="short_expr" expr="0" />
<assign location="res" expr="0" />
<send event="DISPLAY.UPDATE" />
</onentry>
</state>
<state id="result">
</state>
<transition event="OPER" target="opEntered" />
<transition event="DIGIT.0" target="zero1">
<assign location="short_expr" expr="''" />
</transition>
<transition event="DIGIT" target="int1">
<assign location="short_expr" expr="''" />
</transition>
<transition event="POINT" target="frac1">
<assign location="short_expr" expr="''" />
</transition>
</state>
<state id="negated1">
<onentry>
<assign location="short_expr" expr="'-'" />
<send event="DISPLAY.UPDATE" />
</onentry>
<transition event="DIGIT.0" target="zero1" />
<transition event="DIGIT" target="int1" />
<transition event="POINT" target="frac1" />
</state>
<state id="operand1">
<state id="zero1">
<transition event="DIGIT" cond="_event.name != 'DIGIT.0'" target="int1" />
<transition event="POINT" target="frac1" />
</state>
<state id="int1">
<transition event="POINT" target="frac1" />
<transition event="DIGIT">
<assign location="short_expr" expr="short_expr+_event.name.substr(_event.name.lastIndexOf('.')+1)" />
<send event="DISPLAY.UPDATE" />
</transition>
<onentry>
<assign location="short_expr" expr="short_expr+_event.name.substr(_event.name.lastIndexOf('.')+1)" />
<send event="DISPLAY.UPDATE" />
</onentry>
</state>
<state id="frac1">
<onentry>
<assign location="short_expr" expr="short_expr+'.'" />
<send event="DISPLAY.UPDATE" />
</onentry>
<transition event="DIGIT">
<assign location="short_expr" expr="short_expr+_event.name.substr(_event.name.lastIndexOf('.')+1)" />
<send event="DISPLAY.UPDATE" />
</transition>
</state>
<transition event="OPER" target="opEntered" />
</state>
<state id="opEntered">
<transition event="OPER.MINUS" target="negated2" />
<transition event="POINT" target="frac2" />
<transition event="DIGIT.0" target="zero2" />
<transition event="DIGIT" target="int2" />
<onentry>
<raise event="CALC.SUB" />
<send target="#_internal" event="OP.INSERT">
<param name="operator" expr="_event.name" />
</send>
</onentry>
</state>
<state id="negated2">
<onentry>
<assign location="short_expr" expr="'-'" />
<send event="DISPLAY.UPDATE" />
</onentry>
<transition event="DIGIT.0" target="zero2" />
<transition event="DIGIT" target="int2" />
<transition event="POINT" target="frac2" />
</state>
<state id="operand2">
<state id="zero2">
<transition event="DIGIT" cond="_event.name != 'DIGIT.0'" target="int2" />
<transition event="POINT" target="frac2" />
</state>
<state id="int2">
<transition event="DIGIT">
<assign location="short_expr" expr="short_expr+_event.name.substr(_event.name.lastIndexOf('.')+1)" />
<send event="DISPLAY.UPDATE" />
</transition>
<onentry>
<assign location="short_expr" expr="short_expr+_event.name.substr(_event.name.lastIndexOf('.')+1)" />
<send event="DISPLAY.UPDATE" />
</onentry>
<transition event="POINT" target="frac2" />
</state>
<state id="frac2">
<onentry>
<assign location="short_expr" expr="short_expr +'.'" />
<send event="DISPLAY.UPDATE" />
</onentry>
<transition event="DIGIT">
<assign location="short_expr" expr="short_expr +_event.name.substr(_event.name.lastIndexOf('.')+1)" />
<send event="DISPLAY.UPDATE" />
</transition>
</state>
<transition event="OPER" target="opEntered">
<raise event="CALC.SUB" />
<raise event="OP.INSERT" />
</transition>
<transition event="EQUALS" target="result">
<raise event="CALC.SUB" />
<raise event="CALC.DO" />
</transition>
</state>
<transition event="C" target="on" />
</state>
<transition event="CALC.DO">
<assign location="short_expr" expr="''+ res" />
<assign location="long_expr" expr="''" />
<assign location="res" expr="0" />
</transition>
<transition event="CALC.SUB">
<if cond="short_expr!=''">
<assign location="long_expr" expr="long_expr+'('+short_expr+')'" />
</if>
<assign location="res" expr="eval(long_expr)" />
<assign location="short_expr" expr="''" />
<send event="DISPLAY.UPDATE" />
</transition>
<transition event="DISPLAY.UPDATE">
<log label="'result'" expr="short_expr==''?res:short_expr" />
<send type="qt:signal" event="updateDisplay">
<param name="display" expr="short_expr==''?res:short_expr"/>
</send>
</transition>
<transition event="OP.INSERT">
<log expr="_event.data.operator" />
<If cond="_event.data.operator == 'OPER.PLUS'">
<assign location="long_expr" expr="long_expr+'+'" />
<elseif cond="_event.data.operator=='OPER.MINUS'" />
<assign location="long_expr" expr="long_expr+'-'" />
<elseif cond="_event.data.operator=='OPER.STAR'" />
<assign location="long_expr" expr="long_expr+'*'" />
<elseif cond="_event.data.operator=='OPER.DIV'" />
<assign location="long_expr" expr="long_expr+'/'" />
</if>
</transition>
</state>
</scxml>
|
