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annotate Samples/Sdl/SdlHelpers.h @ 1386:dfb48f0794b1

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Ongoing splitting SDL vs WASM (preparing RtViewer WASM)
author Benjamin Golinvaux <bgo@osimis.io>
date Mon, 27 Apr 2020 16:48:19 +0200
parents 9d138883be66
children 240531afdd2d
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1 #pragma once
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2
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3 #if ORTHANC_ENABLE_SDL != 1
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4 # error This file cannot be used if ORTHANC_ENABLE_SDL != 1
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5 #endif
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6
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7 #include <SDL.h>
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8
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9 #include <map>
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10 #include <string>
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11
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12 namespace OrthancStoneHelpers
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13 {
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14 inline OrthancStone::KeyboardModifiers GetKeyboardModifiers(const uint8_t* keyboardState,
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15 const int scancodeCount)
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16 {
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17 using namespace OrthancStone;
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18 int result = KeyboardModifiers_None;
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19
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20 if (keyboardState != NULL)
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21 {
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22 if (SDL_SCANCODE_LSHIFT < scancodeCount &&
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23 keyboardState[SDL_SCANCODE_LSHIFT])
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24 {
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25 result |= KeyboardModifiers_Shift;
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26 }
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27
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28 if (SDL_SCANCODE_RSHIFT < scancodeCount &&
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29 keyboardState[SDL_SCANCODE_RSHIFT])
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30 {
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31 result |= KeyboardModifiers_Shift;
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32 }
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33
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34 if (SDL_SCANCODE_LCTRL < scancodeCount &&
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35 keyboardState[SDL_SCANCODE_LCTRL])
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36 {
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37 result |= KeyboardModifiers_Control;
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38 }
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39
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40 if (SDL_SCANCODE_RCTRL < scancodeCount &&
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41 keyboardState[SDL_SCANCODE_RCTRL])
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42 {
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43 result |= KeyboardModifiers_Control;
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44 }
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45
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46 if (SDL_SCANCODE_LALT < scancodeCount &&
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47 keyboardState[SDL_SCANCODE_LALT])
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48 {
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49 result |= KeyboardModifiers_Alt;
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50 }
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51
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52 if (SDL_SCANCODE_RALT < scancodeCount &&
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53 keyboardState[SDL_SCANCODE_RALT])
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54 {
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55 result |= KeyboardModifiers_Alt;
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56 }
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57 }
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58
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59 return static_cast<KeyboardModifiers>(result);
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60 }
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61
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62
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63 inline void GetPointerEvent(OrthancStone::PointerEvent& p,
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64 const OrthancStone::ICompositor& compositor,
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65 SDL_Event event,
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66 const uint8_t* keyboardState,
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67 const int scancodeCount)
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68 {
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69 using namespace OrthancStone;
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70 KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount);
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71
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72 switch (event.button.button)
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73 {
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74 case SDL_BUTTON_LEFT:
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75 p.SetMouseButton(OrthancStone::MouseButton_Left);
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76 break;
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77
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78 case SDL_BUTTON_RIGHT:
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79 p.SetMouseButton(OrthancStone::MouseButton_Right);
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80 break;
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81
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82 case SDL_BUTTON_MIDDLE:
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83 p.SetMouseButton(OrthancStone::MouseButton_Middle);
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84 break;
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85
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86 default:
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87 p.SetMouseButton(OrthancStone::MouseButton_None);
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88 break;
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89 }
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90
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91 p.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y));
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92 p.SetAltModifier(modifiers & KeyboardModifiers_Alt);
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93 p.SetControlModifier(modifiers & KeyboardModifiers_Control);
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94 p.SetShiftModifier(modifiers & KeyboardModifiers_Shift);
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95 }
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96
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97 //inline void ParseCommonCommandLineArguments()
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98 //{
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99
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100 // po::options_description description("Usage:");
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101
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102 // description.add_options()
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103 // ("trace", "Enable TRACE logging mode (default: false)")
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104 // ("info", "Enable INFO logging mode (default: false)")
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105 // ("orthanc", po::value<string>()->default_value("http://localhost:8042"), "Base URL of the Orthanc instance")
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106
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107 // po::variables_map vm;
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108 // po::store(po::command_line_parser(argc, argv).options(description).run(), vm);
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109 // po::notify(vm);
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110
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111 // if (vm.count("help"))
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112 // {
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113
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114 // }
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115
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116 // if (vm.count("compression"))
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117 // {
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118 // cout << "Compression level " << vm["compression"].as<int>() << endl;
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119 // }
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120
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121 // return 0;
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122
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123 //}
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124
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125 //inline void DeclareOptionAndDefault(boost::program_options::options_description& options,
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126 // const std::string& flag, const std::string& defaultValue,
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127 // std::string help = "")
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128 //{
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129 // description.add_options()
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130 // (flag, po::value<string>()->default_value(defaultValue), help);
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131 //}
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132
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133 //inline void ProcessOptions
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134
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135 }
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136