日期:2014-05-20  浏览次数:20721 次

J2me 游戏点阵字库引擎(六)之部分汉字库【续】

4,生成点阵字库。这里我需要向大家推荐一款点阵字库生成软件:《特大点阵字库制作软件》。?其软件的使用截图如下

图上的dd.hzk文件就是我们生成的GB2312编码的汉字点阵字库。

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5.将汉字点阵字库加载到程序中,代码如下:

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	public void initChineseFontByte() {
		int ic;
		InputStream in = null;
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		DataOutputStream dos = new DataOutputStream(baos);
		byte[] buffer = new byte[1024];
		try {
			in = "".getClass().getResourceAsStream(ZK_PATH);
			if (in != null) {
				while ((ic = in.read(buffer)) > 0) {
					dos.write(buffer, 0, ic);
				}
				chineseFontByte = baos.toByteArray();
				in.close();
			}
			dos.close();
			baos.close();
		} catch (Exception e) {
			System.out.println("getTextByUTF Error:" + e.toString());
		} finally {
			buffer = null;
			in = null;
			dos = null;
			baos = null;
		}

		System.gc();
	}

?6,通过汉字的机内码查找在dd.hzk中找到相应的汉字字形码,并将其和汉字的机内码一起做数据持久化。

	public byte[] getFontStream(String str) {

		String subStr;
		int[] fontCode = null;
		byte[] fontShapeCode = null;
		LinkedList<Integer> allFontCodingLk = new LinkedList<Integer>();
		LinkedList<Byte> allFontShapeLk = new LinkedList<Byte>();

		initChineseFontByte();

		int len = str.length();
		for (int i = 0; i < len; i++) {
			char ch = str.charAt(i);
			subStr = str.substring(i, i + 1);
			fontCode = getByteCode(subStr);
			if (fontCode.length < 2) {
				System.out.println(ch);
			} else {
				fontShapeCode = read(fontCode[0], fontCode[1]);
				if (fontShapeCode != null) {
					allFontCodingLk.add((int) ch);
					addByteToLinkedList(allFontShapeLk, fontShapeCode);
				} else {
					System.out.println(ch + "  " + fontCode[0] + "  "
							+ fontCode[1]);
				}
			}
		}
		try {
			ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
			DataOutputStream dataOutputStream = new DataOutputStream(
					outputStream);

			dataOutputStream.writeByte(FontHeight);
			dataOutputStream.writeByte(ChineseWidth);

			int size = allFontCodingLk.size();
			dataOutputStream.writeInt(size);

			Integer[] allFondCode = new Integer[size];
			allFontCodingLk.toArray(allFondCode);
			for (int i = 0; i < size; i++) {
				dataOutputStream.writeInt(allFondCode[i].intValue());
			}

			Byte[] allFontShapeCode = new Byte[allFontShapeLk.size()];
			allFontShapeLk.toArray(allFontShapeCode);
			for (int i = 0; i < allFontShapeCode.length; i++) {
				dataOutputStream.writeByte(allFontShapeCode[i].byteValue());
			}

			return outputStream.toByteArray();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return null;
	}

??7.输出到相应的文件中

	public void generatesFontFile(byte[] b) {

		try {
			File file = new File("D:/J2ME/ToolFont/myFont.bin");
			FileOutputStream out = new FileOutputStream(file);
			try {
				BufferedOutputStream buf = new BufferedOutputStream(out);
				if (b != null) {
					buf.write(b, 0, b.length);
				}
				buf.flush();
				buf.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
	}

?程序执行如图:

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8.编写加载部分字库的函数

	static void initFontByte() {
		try {
			InputStream inputStream = "".getClass()
					.getResourceAsStream(ZK_PATH);
			DataInputStream dataInputStream = new DataInputStream(inputStream);

			fontHeight = dataInputStream.readByte();

			chineseCharWidth = dataInputStream.readByte();
			NUM_OF_CH_CHAR = dataInputStream.readInt();
			chineseFontCode = new int[NUM_OF_CH_CHAR];
			for (int i = 0; i < NUM_OF_CH_CHAR; i++) {
				chineseFontCode[i] = dataInputStream.readInt();
			}

			int oneChMSize = fontHeight * (((chineseCharWidth - 1) >> 3) + 1);
			int allSize = oneChMSize * NUM_OF_CH_CHAR;
			chineseShapeCode = new byte[allSize];
			dataInputStream.read(chineseShapeCode, 0, allSize);

		                dataInputStream.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

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?10. 下面我需要最后添加一个函数,就是在对应的机内码集中将自己的汉字位置找出来。还记得上一节中,我们说的排序吗???? 这里在从机内码中将自己的汉字找出来,根据其排序采用二分查找,以此来加快程序的执行速度。根据机内码的位置,得到字形码的位置,将汉字绘制出来。

?????? 这个函数,我就不贴出来了,相信同仁是可以写出来的!!

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?????? 谢谢大家的阅读!?

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