Scale.hpp 2.2 KB

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  1. #pragma once
  2. #include <mglpp/system/vec.hpp>
  3. namespace QuickMedia {
  4. template<typename T, typename A>
  5. static T wrap_to_size_x(const T &size, A clamp_size) {
  6. T new_size;
  7. if(size.x == 0) {
  8. new_size.x = 0;
  9. new_size.y = 0;
  10. return new_size;
  11. }
  12. float size_ratio = (float)size.y / (float)size.x;
  13. new_size.x = clamp_size;
  14. new_size.y = new_size.x * size_ratio;
  15. return new_size;
  16. }
  17. template<typename T, typename A>
  18. static T wrap_to_size_y(const T &size, A clamp_size) {
  19. T new_size;
  20. if(size.y == 0) {
  21. new_size.x = 0;
  22. new_size.y = 0;
  23. return new_size;
  24. }
  25. float size_ratio = (float)size.x / (float)size.y;
  26. new_size.y = clamp_size;
  27. new_size.x = new_size.y * size_ratio;
  28. return new_size;
  29. }
  30. template<typename T>
  31. static T wrap_to_size(const T &size, const T &clamp_size) {
  32. T new_size;
  33. new_size = wrap_to_size_x(size, clamp_size.x);
  34. if(new_size.y > clamp_size.y)
  35. new_size = wrap_to_size_y(size, clamp_size.y);
  36. return new_size;
  37. }
  38. template<typename T, typename A>
  39. static T clamp_to_size_x(const T &size, A clamp_size) {
  40. T new_size = size;
  41. if(size.x > clamp_size)
  42. new_size = wrap_to_size_x(new_size, clamp_size);
  43. return new_size;
  44. }
  45. template<typename T, typename A>
  46. static T clamp_to_size_y(const T &size, const A clamp_size) {
  47. T new_size = size;
  48. if(size.y > clamp_size)
  49. new_size = wrap_to_size_y(new_size, clamp_size);
  50. return new_size;
  51. }
  52. template<typename T>
  53. static T clamp_to_size(const T &size, const T &clamp_size) {
  54. T new_size = size;
  55. if(size.x > clamp_size.x || size.y > clamp_size.y)
  56. new_size = wrap_to_size(new_size, clamp_size);
  57. return new_size;
  58. }
  59. template<typename T>
  60. static mgl::vec2f get_ratio(const T &original_size, const T &new_size) {
  61. if(original_size.x == 0 || original_size.y == 0)
  62. return mgl::vec2f(0.0f, 0.0f);
  63. else
  64. return mgl::vec2f((float)new_size.x / (float)original_size.x, (float)new_size.y / (float)original_size.y);
  65. }
  66. }