import java.io.*;

/**
 * @Author Cherry
 * @Date 2021年1月24日
 * @Time 21:30
 * @Brief 将字体转成二进制文件,字体见 font.txt
 */

public class MakeFont {
 private String fontFilePath = null;
 private FileWriter fileWriter = null;
 private File file = new File("fontData.inc");

 private MakeFont(String filePath, boolean isAppend) throws IOException {
 this.fontFilePath = filePath;
 fileWriter = new FileWriter(file.getName(), isAppend);
 }

 /**
 * 创建文件输出流对象,并在文件头部添加标签: systemFont
 *
 * @throws IOException IOException
 */
 private void makeFont() throws IOException {
 String encoding = "GBK";
 File file = new File(fontFilePath);
 if (file.exists() && file.isFile()) {
 fileWriter.write("systemFont:\n");
 FileInputStream fileInputStream = new FileInputStream(file);
 BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(fileInputStream, encoding));
 String lineText = null;
 while ((lineText = bufferedReader.readLine()) != null) {
 if (lineText.contains("char")) {
 writeToBinary(bufferedReader);
 }
 }
 fileWriter.flush(); //刷新流,写入文件
 fileWriter.close();
 System.out.println("Font File Done!");
 }
 }

 /**
 * 将符号表示的字体转化成二进制
 *
 * @param reader BufferedReader
 * @throws IOException
 */
 private void writeToBinary(BufferedReader reader) throws IOException {
 int line = 16; //一个字符有16行
 fileWriter.write("db ");
 String lineText = null;
 while (line > 0) {
 lineText = reader.readLine();
 //System.out.println(lineText);
 byte b = 0;
 for (int i = 0; i < 8; ++i) {
 if (lineText.charAt(i) == '*') {
 b = (byte) (b | (1 << (7 - i)));
 }
 }
 line--;
 fileWriter.write("0" + Integer.toHexString(b & 0xff) + "H");
 //System.out.print("0" + Integer.toHexString(b & 0xff) + "H");
 if (line != 0) {
 //System.out.print(", ");
 fileWriter.write(", ");
 }
 }
 fileWriter.write("\n");
 //System.out.println("\n");
 }

 public static void main(String[] args) throws IOException {
 MakeFont makeFont = new MakeFont("font.txt", false);
 makeFont.makeFont();
 }
}