// 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.

import com.foxit.sdk.PDFException;
import com.foxit.sdk.common.Bitmap;
import com.foxit.sdk.common.Image;
import com.foxit.sdk.common.Library;
import com.foxit.sdk.common.fxcrt.Matrix2D;
import com.foxit.sdk.common.fxcrt.RectI;

import java.io.File;

import static com.foxit.sdk.common.Bitmap.e_Downsample;
import static com.foxit.sdk.common.Constants.e_ErrSuccess;

public class bitmap_transform {

    private static String key = "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";
    private static String sn = "Rew1vB0TqoMIxX444UcpScARWdhgJpsJfzmyMLR32a0+EgrCjp2NaQ==";
    private static String output_path = "../output_files/bitmap_transform/";
    private static String input_path = "../input_files/";

    // You can also use System.load("filename") instead. The filename argument must be an absolute path name.
    static {
        String os = System.getProperty("os.name").toLowerCase();
        String lib = "fsdk_java_";
        if (os.startsWith("win")) {
            lib += "win";
        } else if (os.startsWith("mac")) {
            lib += "mac";
        } else {
            lib += "linux";
        }
        
        if (System.getProperty("sun.arch.data.model").equals("64")) {
          if(System.getProperty("os.arch").equals("aarch64")){
            if(os.startsWith("mac")){
              lib += "arm";
             }
             else{
               lib += "armv8";
             }
           }
           else{
              lib += "64";
           }
        } else {
           if(System.getProperty("os.arch").equals("arm")){
              lib += "armv7";
           }
           else{
              lib += "32";
           }
        }
        System.loadLibrary(lib);
    }

    private static void createResultFolder(String output_path) {
        File myPath = new File(output_path);
        if (!myPath.exists()) {
            myPath.mkdir();
        }
    }

    private static void SaveBitmap(Bitmap bitmap, String file_path) throws PDFException {
        Image image = new Image();
        image.addFrame(bitmap);
        image.saveAs(file_path);
    }

    public static void main(String[] args) throws PDFException {
        String input_file = input_path + "Foxit.bmp";
        createResultFolder(output_path);
        // Initialize library
        int error_code = Library.initialize(sn, key);
        if (error_code != e_ErrSuccess) {
            System.out.println("Library Initialize Error: " + error_code);
            return;
        }

        try {
            Image image = new Image(input_file);
            Bitmap bitmap = image.getFrameBitmap(0);

            int width = bitmap.getWidth();
            int height = bitmap.getHeight();

            // Stretch bitmap.
            Bitmap stretch_bitmap = bitmap.stretchTo(width / 2, height * 2, e_Downsample, null);
            String output_file = output_path + "stetch_bitmap_Foxit.bmp";
            SaveBitmap(stretch_bitmap, output_file);

            // Transform bitmap.
            int left = 0;
            int top = 0;
            Matrix2D matrix = new Matrix2D(width * 2.0f, 0.f, 0.f, height / 2.0f, 0.f, 0.f);
            Bitmap transform_bitmap = bitmap.transformTo(matrix, e_Downsample, left, top, null);
            output_file = output_path + "transform_bitmap_Foxit.bmp";
            SaveBitmap(transform_bitmap, output_file);

            // Vertical and horizontal flip bitmap.
            Bitmap flip_bitmap = bitmap.flip(true, true);
            output_file = output_path + "flip_horz_vert_Foxit.bmp";
            SaveBitmap(flip_bitmap, output_file);

            // Swap the X and Y axis, and then vertical and horizontal flip bitmap.
            Bitmap swap_xy_bitmap = bitmap.swapXY(true, true, null);
            output_file = output_path + "swap_xy_flip_horz_vert_Foxit.bmp";
            SaveBitmap(swap_xy_bitmap, output_file);

            // Calculate the bounding box according to the given background color.
            RectI rect = bitmap.calculateBBoxByColor(0xFFFDFDFD);
            Bitmap clone_bitmap;
            if (rect.height() > 0 && rect.width() > 0) {
                clone_bitmap = bitmap.clone(rect);
                output_file = output_path + "calculate_bbox_by_color_0xFFFDFDFD_foxit.bmp";
                SaveBitmap(clone_bitmap, output_file);
            } else {
                System.out.println("[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.
            rect = bitmap.detectBBoxByColorDiffer(20, 64);
            if (rect.height() > 0 && rect.width() > 0) {
                clone_bitmap = bitmap.clone(rect);
                output_file = output_path + "detect_bbox_by color_differ_20_64_Foxit.bmp";
                SaveBitmap(clone_bitmap, output_file);
            } else {
                System.out.println("[Warning] The result of bounding box (according to the given color difference between content and margin)");
                System.out.println(" is an empty rectangle.\r\n");
            }
        } catch (Exception e) {
            e.printStackTrace();

        }
        Library.release();
        return;
    }
}
