using FreeImageAPI;

namespace News.program.Helpers {
  public class FreeImageHelper {
    public static bool Resize(string Filename, int MaxWidth, int MaxHeight, bool fixHeight, bool fixWidth) {
      int num4;
      int num5;
      uint dib = 0;
      dib = FreeImage.Load(FIF.FIF_JPEG, Filename, 0);
      uint width = FreeImage.GetWidth(dib);
      uint height = FreeImage.GetHeight(dib);
      double num6 = ((double) width)/((double) height);
      if ((width == MaxWidth) && (height == MaxHeight)) {
        FreeImage.Unload(dib);
        return false;
      }
      if (fixHeight) {
        num5 = MaxHeight;
        num4 = (int) (num5*num6);
      }
      else if (fixWidth) {
        num4 = MaxWidth;
        num5 = (int) (((double) num4)/num6);
      }
      else if (width > height) {
        num4 = MaxWidth;
        num5 = (int) (((double) num4)/num6);
      }
      else {
        num5 = MaxHeight;
        num4 = (int) (num5*num6);
      }
      uint num7 = FreeImage.Rescale(dib, num4, num5, FI_FILTER.FILTER_BICUBIC);
      FreeImage.Save(FIF.FIF_JPEG, num7, Filename, 0x80 /*LoadSaveFlags.JPEG_QUALITYSUPERB*/);
      FreeImage.Unload(dib);
      FreeImage.Unload(num7);
      return true;
    }

    public static bool ResizeClipped(string Filename, int Width, int Height, bool center) {
      int num4;
      int num5;
      uint dib = 0;
      dib = FreeImage.Load(FIF.FIF_JPEG, Filename, 0);
      uint width = FreeImage.GetWidth(dib);
      uint height = FreeImage.GetHeight(dib);
      if ((Width == width) && (Height == height)) {
        FreeImage.Unload(dib);
        return false;
      }
      double num6 = ((double) width)/((double) height);
      double num7 = ((double) Width)/((double) Height);
      if (num7 < num6) {
        num5 = (int) height;
        num4 = (int) (num5*num7);
      }
      else {
        num4 = (int) width;
        num5 = (int) (((double) width)/num7);
      }
      uint num8 = FreeImage.Rescale(FreeImage.Copy(dib, 0, 0, num4, num5), Width, Height, FI_FILTER.FILTER_CATMULLROM);
      FreeImage.Save(FIF.FIF_JPEG, num8, Filename, 0x4b);
      FreeImage.Unload(dib);
      FreeImage.Unload(num8);
      return true;
    }


    public static bool ResizeWhite(string Filename, int Width, int Height, bool center) {
      int num5;
      int num6;
      uint dib = 0;
      uint num2 = 0;
      dib = FreeImage.Load(FIF.FIF_JPEG, Filename, 0);
      uint width = FreeImage.GetWidth(dib);
      uint height = FreeImage.GetHeight(dib);
      if ((Width == width) && (Height == height)) {
        FreeImage.Unload(dib);
        return false;
      }
      double num7 = ((double) width)/((double) height);
      double num8 = ((double) Width)/((double) Height);
      if (num8 < num7) {
        num5 = Width;
        num6 = (int) (((double) num5)/num7);
      }
      else {
        num6 = Height;
        num5 = (int) (num6*num7);
      }
      num2 = FreeImage.Allocate(Width, Height, 0x18, 0, 0, 0);
      FreeImage.Invert(num2);
      uint src = FreeImage.Rescale(dib, num5, num6, FI_FILTER.FILTER_CATMULLROM);
      if (center) {
        FreeImage.Paste(num2, src, (Width - num5)/2, (Height - num6)/2, 0x3e8);
      }
      else {
        FreeImage.Paste(num2, src, 0, Height - num6, 0x3e8);
      }
      if (num5 == 0x192) {
        FreeImage.Save(FIF.FIF_JPEG, num2, Filename, 0x55);
      }
      else {
        FreeImage.Save(FIF.FIF_JPEG, num2, Filename, 0x4b);
      }
      FreeImage.Unload(dib);
      FreeImage.Unload(num2);
      FreeImage.Unload(src);
      return true;
    }
  }
}