1 | // This file is a part of Framsticks SDK. http://www.framsticks.com/ |
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2 | // Copyright (C) 1999-2015 Maciej Komosinski and Szymon Ulatowski. |
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3 | // See LICENSE.txt for details. |
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4 | |
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5 | #include <frams/param/multiparamload.h> |
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6 | #include <frams/virtfile/stdiofile.h> |
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7 | #include <frams/mhandlers/stdouthandler.h> |
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8 | |
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9 | /** |
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10 | @file |
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11 | Sample code: Loading Framsticks "objects" (structures). |
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12 | |
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13 | After loading, objects are printed ("saved") to standard output. |
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14 | Additional information and messages are printed to standard error. |
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15 | You can redirect one or both streams if needed. |
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16 | |
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17 | A sample input file for this program is "loader_test_param.in", |
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18 | so you can run this program from the "cpp" directory as |
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19 | ./loader_test_param frams/_demos/loader_test_param.in |
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20 | |
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21 | \include loader_test_param.cpp |
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22 | */ |
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23 | |
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24 | struct Data |
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25 | { |
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26 | public: |
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27 | SString text, longtext, deftext; |
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28 | paInt i1, i2, i3, i4; |
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29 | double f1, f2, f3, f4; |
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30 | ExtValue x1, x2; |
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31 | int notchanged, notloaded, notsaved; |
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32 | }; |
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33 | |
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34 | #define FIELDSTRUCT Data |
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35 | ParamEntry data_paramtab[] = |
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36 | { |
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37 | { "Data", 1, 16, "data", }, |
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38 | { "text", 0, 0, "Text", "s 0 10", FIELD(text), }, // 10 = length limit |
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39 | { "longtext", 0, 0, "Long text", "s 1", FIELD(longtext), }, // 1 = multiline, 0 = unlimited |
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40 | { "deftext", 0, 0, "Text with default value", "s 0 0 some text", FIELD(deftext), }, |
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41 | { "i1", 0, 0, "Integer 1", "d", FIELD(i1), }, // unrestricted integer |
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42 | { "i2", 0, 0, "Integer 2", "d -5 5 1", FIELD(i2), }, // [-5..5] integer, default=1 |
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43 | { "i3", 0, 0, "Integer 3", "d -1 3 0 ~Minus~Zero~One~Two~Three", FIELD(i3), }, // [0..3] + text labels (Param::getText()) |
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44 | { "i4", 0, 0, "Integer 4", "d 0 10 15", FIELD(i4), }, // invalid default |
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45 | { "f1", 0, 0, "Float 1", "d", FIELD(f1), }, // unrestricted float |
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46 | { "f2", 0, 0, "Float 2", "f -100 100 -100", FIELD(f2), }, // [-100..100] float, default=-100 |
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47 | { "f3", 0, 0, "Float 3", "f -10 10", FIELD(f3), }, // [-10..10] float |
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48 | { "f4", 0, 0, "Float 4", "f 1 -1 44", FIELD(f4), }, // unrestricted float (because min>max), default=44 |
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49 | { "x1", 0, 0, "Untyped 1", "x", FIELD(x1), }, // any type (class ExtValue) |
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50 | { "x2", 0, 0, "Untyped 2", "x", FIELD(x2), }, // any type (class ExtValue) |
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51 | { "notchanged", 0, PARAM_READONLY, "Read only field", "d", FIELD(notchanged), }, // neither load() nor setDefault() can change this field |
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52 | { "notloaded", 0, PARAM_DONTLOAD, "Non-loadable field", "d", FIELD(notloaded), }, // load() does not change this field |
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53 | { "notsaved", 0, PARAM_DONTSAVE, "Non-saveable field", "d", FIELD(notsaved), }, // save() skips this field |
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54 | { 0, 0, 0, }, |
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55 | }; |
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56 | #undef FIELDSTRUCT |
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57 | |
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58 | int main(int argc, char*argv[]) |
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59 | { |
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60 | if (argc < 2) |
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61 | { |
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62 | fprintf(stderr, "Arguments: filename\n"); |
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63 | return 1; |
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64 | } |
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65 | |
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66 | StdioFILEDontClose virt_stderr(stderr); |
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67 | StdioFILEDontClose virt_stdout(stdout); |
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68 | MessageHandlerToStdout messages_to_stderr(MessageHandlerBase::Enable, &virt_stderr); |
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69 | StdioFileSystem_autoselect stdiofilesys; |
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70 | MultiParamLoader loader(argv[1]); |
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71 | |
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72 | Data data; |
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73 | Param param(data_paramtab, &data); |
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74 | |
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75 | data.notchanged = 100; |
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76 | data.notloaded = 200; |
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77 | |
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78 | loader.addObject(¶m); |
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79 | loader.breakOn(MultiParamLoader::OnError + MultiParamLoader::BeforeObject + MultiParamLoader::AfterObject + MultiParamLoader::OnComment + MultiParamLoader::BeforeUnknown); |
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80 | |
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81 | while (int status = loader.go()) |
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82 | { |
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83 | switch (status) |
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84 | { |
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85 | case MultiParamLoader::OnComment: |
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86 | fprintf(stderr, "comment: '%s'\n", loader.getComment().c_str()); |
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87 | break; |
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88 | |
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89 | case MultiParamLoader::BeforeUnknown: |
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90 | // At this point we could change our mind and load the unknown object using MultiParamLoader::loadObjectNow() functions. |
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91 | // It is "unknown", so we would have to provide its ParamInterface. |
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92 | // In fact, this method is used not just for truly unknown objects but also for |
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93 | // dynamic objects that cannot be added using MultiParamLoader.addObject(). |
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94 | fprintf(stderr, "unknown object found: '%s' (will be skipped)\n", loader.getObjectName().c_str()); |
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95 | break; |
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96 | |
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97 | case MultiParamLoader::AfterObject: |
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98 | fprintf(stderr, "loaded:\n"); |
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99 | for (int i = 0; i < param.getPropCount(); i++) |
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100 | fprintf(stderr, "%s=%s\n", param.id(i), param.getText(i).c_str()); |
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101 | fprintf(stderr, "type of 'x1' is: %s\n", data.x1.typeDescription().c_str()); |
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102 | fprintf(stderr, "type of 'x2' is: %s\n", data.x2.typeDescription().c_str()); |
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103 | fprintf(stderr, "-----\n\n"); |
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104 | param.save(&virt_stdout); |
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105 | break; |
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106 | |
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107 | case MultiParamLoader::BeforeObject: |
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108 | fprintf(stderr, "----- object found, loading...\n"); |
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109 | data.notchanged++; |
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110 | param.setDefault(); //reset (initialize) struct contents |
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111 | break; |
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112 | |
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113 | case MultiParamLoader::OnError: |
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114 | fprintf(stderr, "Error: %s", loader.getError().c_str()); |
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115 | } |
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116 | } |
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117 | return 0; |
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118 | } |
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