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1 /*
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2 This program implements a simple GUI calculator
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3 Currently only the Windows and Syllable ports of Rhope have GUI support
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4 */
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5
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6
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7 Add[window]
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8 {
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9 [window]Get Value["right"]
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10 {
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11 <String@Real Number[~]
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12 {
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13 [window]Set Value["left", [~] + [[window]Get Value["left"]]]
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14 [window]Set Value["right", "0"]
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15 }
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16 }
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17 }
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18
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19 Sub[window]
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20 {
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21 [window]Get Value["right"]
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22 {
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23 [window]Set Value["left", [<String@Real Number[ [window]Get Value["left"] ]] - [~]]
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24 [window]Set Value["right", "0"]
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25 }
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26 }
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27
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28 Main[]
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29 {
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30 [[[[[[New@Window["Visuality Calculator", 400.0, 400.0]
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31 ]Add Widget["+", [New@Button["+", 20.0, 20.0]]Set Handler["click","Add"], 20.0, 60.0]
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32 ]Add Widget["-", [New@Button["-", 20.0, 20.0]]Set Handler["click","Sub"], 60.0, 60.0]
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33 ]Add Widget["left", [New@Input Box["0", 170.0, 20.0]]Set Type["numeric"], 20.0, 20.0]
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34 ]Add Widget["right", [New@Input Box["0", 170.0, 20.0]]Set Type["numeric"], 210.0, 20.0]
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35 ]Show[20.0,20.0]
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36 ]Wait Close
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37 }
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