// Copyright (C) 2003-2026, Foxit Software Inc..
// All Rights Reserved.
//
// http://www.foxitsoftware.com
//
// The following code is copyrighted and contains proprietary information and trade secrets of Foxit Software Inc..
// You cannot distribute any part of Foxit PDF SDK to any third party or general public,
// unless there is a separate license agreement with Foxit Software Inc. which explicitly grants you such rights.
//
// This file contains an example to demonstrate how to use Foxit PDF SDK to do bitmap transformation,
// such as flipping, stretching, and so on.

// Include Foxit SDK header files.
#include <time.h>
#include<direct.h>
#include <stdio.h>

#include "../../../include/fs_basictypes_c.h"
#include "../../../include/fs_common_c.h"
#include "../../../include/fs_pdfdoc_c.h"
#include "../../../include/fs_pdfpage_c.h"
#include "../../../include/fs_image_c.h"

static const char* sn = "bPxThFlBAYifO3yiW0C51bKbjPap1zHaf5aG5sX378TjFvB7Q0802A==";
static const char* key = "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";

static const wchar_t* output_path = L"../output_files/";
static const wchar_t* input_path = L"../input_files/";

#ifndef TRUE
#define TRUE 1
#endif

#ifndef FALSE
#define FALSE 0
#endif

#ifndef NULL
#define NULL (void*)0
#endif

#define MAX_FILE_PATH 260

void SaveBitmap(FS_BITMAP_HANDLE bitmap, const wchar_t* file_path) {
  FS_IMAGE_HANDLE image = NULL;
  FS_BOOL result_value;
  FSDK_Image_Create(&image);

  FSDK_Image_AddFrame(image, bitmap, &result_value);
  FSDK_Image_SaveAs(image, file_path, &result_value);
  FSDK_Image_Release(image);
}

int main(int argc, char *argv[]) {
  int err_ret = 0;
  FSErrorCode error_code = e_FSErrSuccess;
  wchar_t output_directory[MAX_FILE_PATH] = { 0 };
  wchar_t input_file[MAX_FILE_PATH] = { 0 };

  error_code = FSDK_Library_Initialize(sn, key);
  if (error_code != e_FSErrSuccess) {
    printf("Library Initialize Error: %d\n", error_code);
    return 1;
  }

  swprintf_s(output_directory, MAX_FILE_PATH, L"%lsbitmap_transform/", output_path);
  _wmkdir(output_directory);

  swprintf_s(input_file, MAX_FILE_PATH, L"%lsFoxit.bmp", input_path);
  {
    FS_IMAGE_HANDLE image = NULL;
    FS_BITMAP_HANDLE bitmap = NULL;
    int width = 0, height = 0;
    FS_BITMAP_HANDLE stretch_bitmap = NULL;
    wchar_t output_file[MAX_FILE_PATH] = { 0 };
    int left = 0, top = 0;
    FS_BITMAP_HANDLE transform_bitmap = NULL;
    FSMatrix matrix;
    FS_BITMAP_HANDLE flip_bitmap = NULL;
    FS_BITMAP_HANDLE swap_xy_bitmap = NULL;
    FSRectI rect;
    FS_BITMAP_HANDLE clone_bitmap = NULL;

    FSDK_Image_Create0(input_file, &image);
    FSDK_Image_GetFrameBitmap(image, 0, &bitmap);

    FSDK_Bitmap_GetWidth(bitmap, &width);
    FSDK_Bitmap_GetHeight(bitmap, &height);

    // Stretch bitmap.
    FSDK_Bitmap_StretchTo(bitmap,  width / 2, height * 2, e_FSDownsample, NULL, &stretch_bitmap);

    swprintf_s(output_file, MAX_FILE_PATH, L"%lsstetch_bitmap_Foxit.bmp", output_directory);
    SaveBitmap(stretch_bitmap, output_file);
    FSDK_Bitmap_Release(stretch_bitmap);

    // Transform bitmap.
    matrix.a = width * 2.0f;
    matrix.b = 0.f;
    matrix.c = 0.f;
    matrix.d = height / 2.0f;
    matrix.e = 0.f;
    matrix.f = 0.f;
    FSDK_Bitmap_TransformTo(bitmap, matrix, e_FSDownsample, left, top, NULL, &transform_bitmap);
    swprintf_s(output_file, MAX_FILE_PATH, L"%lstransform_bitmap_Foxit.bmp", output_directory);
    SaveBitmap(transform_bitmap, output_file);
    FSDK_Bitmap_Release(transform_bitmap);

    // Vertical and horizontal flip bitmap.
    FSDK_Bitmap_Flip(bitmap, TRUE, TRUE, &flip_bitmap);
    swprintf_s(output_file, MAX_FILE_PATH, L"%lsflip_horz_vert_Foxit.bmp", output_directory);
    SaveBitmap(flip_bitmap, output_file);
    FSDK_Bitmap_Release(flip_bitmap);

    // Swap the X and Y axis, and then vertical and horizontal flip bitmap.
    FSDK_Bitmap_SwapXY(bitmap, TRUE, TRUE, NULL, &swap_xy_bitmap);
    swprintf_s(output_file, MAX_FILE_PATH, L"%lsswap_xy_flip_horz_vert_Foxit.bmp", output_directory);
    SaveBitmap(swap_xy_bitmap, output_file);
    FSDK_Bitmap_Release(swap_xy_bitmap);

    // Calculate the bounding box according to the given background color.
    FSDK_Bitmap_CalculateBBoxByColor(bitmap, 0xFFFDFDFD, &rect);
    if ((rect.bottom - rect.top) > 0 && (rect.right - rect.left) > 0) {
      FSDK_Bitmap_Clone(bitmap, &rect, &clone_bitmap);
      swprintf_s(output_file, MAX_FILE_PATH, L"%lscalculate_bbox_by_color_0xFFFDFDFD_foxit.bmp", output_directory);
      SaveBitmap(clone_bitmap, output_file);
      FSDK_Bitmap_Release(clone_bitmap);
    } else {
      printf(
        "[Warning] The result of bounding box (according to the given background color) is an empty rectangle.\r\n");
    }

    // Detect the bounding box of content according to the given color difference between content and margin.
    FSDK_Bitmap_DetectBBoxByColorDiffer(bitmap, 20, 64, &rect);
    if ((rect.bottom - rect.top) > 0 && (rect.right - rect.left) > 0) {
      FSDK_Bitmap_Clone(bitmap, &rect, &clone_bitmap);
      swprintf_s(output_file, MAX_FILE_PATH, L"%lsdetect_bbox_by color_differ_20_64_Foxit.bmp", output_directory);
      SaveBitmap(clone_bitmap, output_file);
      FSDK_Bitmap_Release(clone_bitmap);
    } else {
      printf(
        "[Warning] The result of bounding box (according to the given color difference between content and margin)"
        " is an empty rectangle.\r\n");
    }
  }
  FSDK_Library_Release();
  printf("bitmap transform done.\n");
  return err_ret;
}