// 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 edit paragraph
// in a PDF document.
#include <time.h>
#include<direct.h>
#include<stdio.h>
#include <stdlib.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_paragraphediting_c.h"

#ifndef TRUE
#define TRUE 1
#endif

#ifndef FALSE
#define FALSE 0
#endif

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

#define MAX_FILE_PATH 260

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/";

int page_index_ = 0;

void gRelease(void* user_data) {
  if (user_data)
    free(user_data);
}
   FSMatrix gGetRenderMatrix(void* user_data, const FS_PDFDOC_HANDLE document, int page_index) {
    float floatwidth, floatheight;
    FSRotation return_rotation;
    FSMatrix return_matrix;
    FS_PDFPAGE_HANDLE page;
    FSDK_PDFDoc_GetPage(document, page_index, &page);
    FSDK_PDFPage_GetWidth(page, &floatwidth);
    FSDK_PDFPage_GetHeight(page, &floatheight);
    FSDK_PDFPage_GetRotation(page, &return_rotation);
    FSDK_PDFPage_GetDisplayMatrix(page, 0, 0, floatwidth, floatheight, return_rotation, &return_matrix);
    return return_matrix;
  }
   void* gGetPageViewHandle(void* user_data, const FS_PDFDOC_HANDLE document,  int page_index) {
    return NULL;
  }
   FSRectF gGetClientRect(void* user_data, const FS_PDFDOC_HANDLE document) {
    FSRectF rectf;
    rectf.left = 0;
    rectf.right = 0;
    rectf.top = 0;
    rectf.bottom = 0;
    return rectf;
  }
   float gGetScale(void* user_data, const FS_PDFDOC_HANDLE document, int page_index) {
    return 1.0f;
  }
   FS_BOOL gGotoPageView(void* user_data, const FS_PDFDOC_HANDLE document, int page_index, float left, float top) {
    return TRUE;
  }

   void gGetVisiblePageIndexArray(void* user_data, const FS_PDFDOC_HANDLE document, FS_INT32** return_int32array, FS_UINT32* return_int32array_length) {
     FS_INT32 array[] = { 0};
	 int i;
     *return_int32array_length = 1;
     *return_int32array = (FS_INT32*)malloc(sizeof(FS_INT32)*(*return_int32array_length));
     for ( i = 0; i < (*return_int32array_length); i++) {
       (*return_int32array)[i] = array[i];

     }
  }
   FSRectF gGetPageVisibleRect(void* user_data, const FS_PDFDOC_HANDLE document, int page_index) {
    FSRectF rectf;
    rectf.left = 0;
    rectf.right = 0;
    rectf.top = 0;
    rectf.bottom = 0;
    return rectf;
  }
   FSRectF gGetPageRect(void* user_data, const FS_PDFDOC_HANDLE document, int page_index) {
    float floatwidth, floatheight;
	  FSRectF rectf;
    FS_PDFPAGE_HANDLE page;
    FSDK_PDFDoc_GetPage(document, page_index, &page);
    FSDK_PDFPage_GetWidth(page, &floatwidth);
    FSDK_PDFPage_GetHeight(page, &floatheight);

    rectf.left = 0;
    rectf.right = floatwidth;
    rectf.top = 0;
    rectf.bottom = floatheight;
    return rectf;
  }
   int gGetCurrentPageIndex(void* user_data, const FS_PDFDOC_HANDLE document) {
    return page_index_;
  }
   FSRotation gGetRotation(void* user_data, const FS_PDFDOC_HANDLE document, int page_index) {
    FSRotation rotation;
    FS_PDFPAGE_HANDLE page;
    FSDK_PDFDoc_GetPage(document, page_index, &page);
    FSDK_PDFPage_GetRotation(page, &rotation);
    return rotation;
  }
   void gInvalidateRect(void* user_data, const FS_PDFDOC_HANDLE document, int page_index, FSRectF* invalid_rects, FS_UINT32 array_length_rect_array) {
  }
   void gAddUndoItem(void* user_data, const FS_PARAGRAPHEDITINGUNDOITEM_HANDLE undo_item) {
  }
   void gSetDocChangeMark(void* user_data, const FS_PDFDOC_HANDLE document) {
  }
   void gNotifyTextInputReachLimit(void* user_data, const FS_PDFDOC_HANDLE document, int page_index) {
  }




int main(int argc, char *argv[]) {
  int err_ret = 0;
  FSErrorCode error_code = e_FSErrSuccess;
  wchar_t input_file[MAX_FILE_PATH] = { 0 };
  wchar_t output_directory[MAX_FILE_PATH] = { 0 };
  wchar_t output_file[MAX_FILE_PATH] = { 0 };
  FS_PDFDOC_HANDLE doc = NULL;
  FS_PAGELABELS_HANDLE paragraph_editing = NULL;
  FS_BOOL return_result = FALSE;
  FS_PDFPAGE_HANDLE page = NULL;
  FS_PROGRESSIVE_HANDLE return_value = NULL;
  FS_PARAGRAPHEDITINGMGR_HANDLE provider_mgr = NULL;
  FS_PARAGRAPHEDITING_HANDLE provider_editting = NULL;
  FS_JOINSPLIT_HANDLE join_split = NULL;
  FSPointF point;
  FSParagraphEditingProviderCallback* provider_callback;
  float floatheight = 0;

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

  error_code = FSDK_Library_Initialize(sn, key);
  if (error_code != e_FSErrSuccess) {
    printf("Library Initialize Error: %d\n", error_code);
    return 1;
  }
  swprintf_s(input_file, MAX_FILE_PATH, L"%lsAboutFoxit.pdf", input_path);

  error_code = FSDK_PDFDoc_Create0(input_file, &doc);
  if (error_code != e_FSErrSuccess) return 1;
  error_code = FSDK_PDFDoc_Load(doc, NULL);
  if (error_code != e_FSErrSuccess) {
    FSDK_PDFDoc_Release(doc);
    wprintf(L"The Doc [%ls] Error: %d\n", input_file, error_code);
    return 1;
  }
  error_code = FSDK_PDFDoc_GetPage(doc, 0, &page);
  FSDK_PDFPage_StartParse(page, e_FSParseFlagsParsePageNormal, NULL, FALSE, &return_value);
  FSDK_PDFPage_GetHeight(page, &floatheight);
  FSDK_PDFPage_GetIndex(page, &page_index_);

  provider_callback = (FSParagraphEditingProviderCallback*)malloc(sizeof(FSParagraphEditingProviderCallback));
  provider_callback->user_data = (void*)provider_callback;
  provider_callback->Release = gRelease;
  provider_callback->GetRenderMatrix = gGetRenderMatrix;
  provider_callback->GetPageViewHandle = gGetPageViewHandle;
  provider_callback->GetClientRect = gGetClientRect;
  provider_callback->GetScale = gGetScale;
  provider_callback->GotoPageView = gGotoPageView;
  provider_callback->GetVisiblePageIndexArray = gGetVisiblePageIndexArray;
  provider_callback->GetPageVisibleRect = gGetPageVisibleRect;
  provider_callback->GetPageRect = gGetPageRect;
  provider_callback->GetCurrentPageIndex = gGetCurrentPageIndex;
  provider_callback->GetRotation = gGetRotation;
  provider_callback->InvalidateRect = gInvalidateRect;
  provider_callback->AddUndoItem = gAddUndoItem;
  provider_callback->SetDocChangeMark = gSetDocChangeMark;
  provider_callback->NotifyTextInputReachLimit = gNotifyTextInputReachLimit;
  FSDK_ParagraphEditingMgr_Create(provider_callback, doc, &provider_mgr);
  //Paragraph_editing
  {
    FSDK_ParagraphEditingMgr_GetParagraphEditing(provider_mgr, &provider_editting);
    FSDK_ParagraphEditing_Activate(provider_editting, &return_value);
    point.x = 95;
    point.y = floatheight - 728;
    FSDK_ParagraphEditing_StartEditing(provider_editting,0, point, point);
    FSDK_ParagraphEditing_SetFontSize(provider_editting, 24);
    FSDK_ParagraphEditing_SetUnderline(provider_editting, TRUE);
    FSDK_ParagraphEditing_InsertText(provider_editting,L"InsertText_Paragraph_editing", &return_value);
    FSDK_ParagraphEditing_Deactivate(provider_editting, &return_value);
    swprintf_s(output_file, MAX_FILE_PATH, L"%lsParagraph_editing.pdf", output_directory);
    error_code = FSDK_PDFDoc_SaveAs(doc, output_file, e_FSSaveFlagNoOriginal, &return_result);
    if (error_code != e_FSErrSuccess) {
      printf("Save doc error!\n");
      FSDK_PDFDoc_Release(doc);
      return 1;
    }
  }
  //Join&split
  {
    point.x = 289;
    point.y = 659;
    FSDK_ParagraphEditingMgr_GetJoinSplit(provider_mgr, &join_split);
    FSDK_ParagraphEditing_Activate(join_split, &return_value);
    FSDK_JoinSplit_OnLButtonDown(join_split,0,point, &return_value);
    FSDK_JoinSplit_OnLButtonUp(join_split, 0, point, &return_value);
    FSDK_JoinSplit_SplitBoxes(join_split);
    FSDK_JoinSplit_Deactivate(join_split, &return_value);
    swprintf_s(output_file, MAX_FILE_PATH, L"%lsSplit_Boxes.pdf", output_directory);
    error_code = FSDK_PDFDoc_SaveAs(doc, output_file, e_FSSaveFlagNoOriginal, &return_result);
    if (error_code != e_FSErrSuccess) {
      printf("Save doc error!\n");
      FSDK_PDFDoc_Release(doc);
      return 1;
    }


    FSDK_ParagraphEditing_Activate(join_split, &return_value);
    point.x = 307;
    point.y = floatheight - 637;
    FSDK_JoinSplit_OnLButtonDown(join_split, 0, point, &return_value);
    FSDK_JoinSplit_OnLButtonUp(join_split, 0, point, &return_value);
    point.x = 307;
    point.y = floatheight - 453;
    FSDK_JoinSplit_OnLButtonDown(join_split, 0, point, &return_value);
    FSDK_JoinSplit_OnLButtonUp(join_split, 0, point, &return_value);
    FSDK_JoinSplit_JoinBoxes(join_split);
    FSDK_JoinSplit_Deactivate(join_split, &return_value);
    swprintf_s(output_file, MAX_FILE_PATH, L"%lsJoin_Boxes.pdf", output_directory);
    error_code = FSDK_PDFDoc_SaveAs(doc, output_file, e_FSSaveFlagNoOriginal, &return_result);
    if (error_code != e_FSErrSuccess) {
      printf("Save doc error!\n");
      FSDK_PDFDoc_Release(doc);
      return 1;
    }
  }
  FSDK_PDFPage_Release(page);
  FSDK_PDFDoc_Release(doc);
  printf("Paragraph editing successfully.\n");

  FSDK_Library_Release();
  return err_ret;
}
