qplatformheaderhelper.h 3.6 KB

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  38. ****************************************************************************/
  39. #ifndef QPLATFORMHEADERHELPER_H
  40. #define QPLATFORMHEADERHELPER_H
  41. #include <QtCore/QByteArray>
  42. #include <QtGui/QGuiApplication>
  43. #if 0
  44. #pragma qt_class(QPlatformHeaderHelper)
  45. #endif
  46. QT_BEGIN_NAMESPACE
  47. namespace QPlatformHeaderHelper {
  48. template<typename ReturnT, typename FunctionT>
  49. ReturnT callPlatformFunction(const QByteArray &functionName)
  50. {
  51. FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(functionName));
  52. return func ? func() : ReturnT();
  53. }
  54. template<typename ReturnT, typename FunctionT, typename Arg1>
  55. ReturnT callPlatformFunction(const QByteArray &functionName, Arg1 a1)
  56. {
  57. FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(functionName));
  58. return func ? func(a1) : ReturnT();
  59. }
  60. template<typename ReturnT, typename FunctionT, typename Arg1, typename Arg2>
  61. ReturnT callPlatformFunction(const QByteArray &functionName, Arg1 a1, Arg2 a2)
  62. {
  63. FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(functionName));
  64. return func ? func(a1, a2) : ReturnT();
  65. }
  66. template<typename ReturnT, typename FunctionT, typename Arg1, typename Arg2, typename Arg3>
  67. ReturnT callPlatformFunction(const QByteArray &functionName, Arg1 a1, Arg2 a2, Arg3 a3)
  68. {
  69. FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(functionName));
  70. return func ? func(a1, a2, a3) : ReturnT();
  71. }
  72. template<typename ReturnT, typename FunctionT, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
  73. ReturnT callPlatformFunction(const QByteArray &functionName, Arg1 a1, Arg2 a2, Arg3 a3, Arg4 a4)
  74. {
  75. FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(functionName));
  76. return func ? func(a1, a2, a3, a4) : ReturnT();
  77. }
  78. }
  79. QT_END_NAMESPACE
  80. #endif /*QPLATFORMHEADERHELPER_H*/