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annotate Samples/Sdl/SdlHelpers.h @ 1424:b424028392cf

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fixing some build errors
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 15 May 2020 11:41:33 +0200
parents 5d7ee14dc1eb
children 11141df26e0d
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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 <Framework/Viewport/SdlViewport.h>
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8
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9 #include <boost/shared_ptr.hpp>
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10
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11 #include <SDL.h>
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12
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13 #include <map>
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14 #include <string>
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15
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16 namespace OrthancStoneHelpers
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17 {
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18
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19 inline OrthancStone::KeyboardModifiers GetKeyboardModifiers(const uint8_t* keyboardState,
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20 const int scancodeCount)
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21 {
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22 using namespace OrthancStone;
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23 int result = KeyboardModifiers_None;
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24
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25 if (keyboardState != NULL)
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26 {
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27 if (SDL_SCANCODE_LSHIFT < scancodeCount &&
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28 keyboardState[SDL_SCANCODE_LSHIFT])
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29 {
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30 result |= KeyboardModifiers_Shift;
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31 }
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32
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33 if (SDL_SCANCODE_RSHIFT < scancodeCount &&
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34 keyboardState[SDL_SCANCODE_RSHIFT])
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35 {
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36 result |= KeyboardModifiers_Shift;
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37 }
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38
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39 if (SDL_SCANCODE_LCTRL < scancodeCount &&
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40 keyboardState[SDL_SCANCODE_LCTRL])
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41 {
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42 result |= KeyboardModifiers_Control;
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43 }
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44
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45 if (SDL_SCANCODE_RCTRL < scancodeCount &&
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46 keyboardState[SDL_SCANCODE_RCTRL])
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47 {
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48 result |= KeyboardModifiers_Control;
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49 }
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50
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51 if (SDL_SCANCODE_LALT < scancodeCount &&
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52 keyboardState[SDL_SCANCODE_LALT])
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53 {
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54 result |= KeyboardModifiers_Alt;
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55 }
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56
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57 if (SDL_SCANCODE_RALT < scancodeCount &&
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58 keyboardState[SDL_SCANCODE_RALT])
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59 {
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60 result |= KeyboardModifiers_Alt;
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61 }
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62 }
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63
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64 return static_cast<KeyboardModifiers>(result);
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65 }
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66
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67
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68 inline void GetPointerEvent(OrthancStone::PointerEvent& p,
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69 const OrthancStone::ICompositor& compositor,
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70 SDL_Event event,
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71 const uint8_t* keyboardState,
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72 const int scancodeCount)
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73 {
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74 using namespace OrthancStone;
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75 KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount);
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76
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77 switch (event.button.button)
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78 {
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79 case SDL_BUTTON_LEFT:
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80 p.SetMouseButton(OrthancStone::MouseButton_Left);
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81 break;
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82
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83 case SDL_BUTTON_RIGHT:
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84 p.SetMouseButton(OrthancStone::MouseButton_Right);
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85 break;
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86
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87 case SDL_BUTTON_MIDDLE:
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88 p.SetMouseButton(OrthancStone::MouseButton_Middle);
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89 break;
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90
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91 default:
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92 p.SetMouseButton(OrthancStone::MouseButton_None);
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93 break;
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94 }
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95
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96 p.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y));
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97 p.SetAltModifier(modifiers & KeyboardModifiers_Alt);
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98 p.SetControlModifier(modifiers & KeyboardModifiers_Control);
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99 p.SetShiftModifier(modifiers & KeyboardModifiers_Shift);
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100 }
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101
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102 static boost::shared_ptr<OrthancStone::SdlViewport> GetSdlViewportFromWindowId(
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103 const std::vector<boost::shared_ptr<OrthancStone::SdlViewport> >& viewports,
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104 Uint32 windowID)
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105 {
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106 using namespace OrthancStone;
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107 for (size_t i = 0; i < viewports.size(); ++i)
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108 {
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109 boost::shared_ptr<IViewport> viewport = viewports[i];
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110 boost::shared_ptr<SdlViewport> sdlViewport = boost::dynamic_pointer_cast<SdlViewport>(viewport);
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111 Uint32 curWindowID = sdlViewport->GetSdlWindowId();
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112 if (windowID == curWindowID)
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113 return sdlViewport;
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114 }
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115
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116 return boost::shared_ptr<OrthancStone::SdlViewport>();
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117 }
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118 }
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119
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120