C#指定图片添加文字

来源：互联网发布：博达软件编辑：程序博客网时间：2024/06/05 06:49
using System.Drawing;using System.IO;using UnityEngine;public class TestImage : MonoBehaviour{    private string filePath;    // Use this for initialization    void Start()    {        filePath = @Application.streamingAssetsPath + "/test.jpg";        AddTextToImg("卧槽啊！小贱！");    }    // Update is called once per frame    void Update()    {    }    /// <summary>    /// 指定图片添加指定文字    /// </summary>     /// <param name="text">添加的文字</param>    /// <param name="picname">生成文件名</param>    private void AddTextToImg(string text)    {        //判断指定图片是否存在        if (!File.Exists(filePath))        {            throw new FileNotFoundException("The file don't exist!");        }        if (text == string.Empty)        {            return;        }         Image image = Image.FromFile(filePath);        Bitmap bitmap = new Bitmap(image, image.Width, image.Height);        System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);        //字体大小        float fontSize = 40.0f;        //文本的长度        float textWidth = text.Length * fontSize;          //下面定义一个矩形区域，以后在这个矩形里画上白底黑字        float rectX = 120;        float rectY = 200;        float rectWidth = text.Length * (fontSize + 40);        float rectHeight = fontSize + 40;        //声明矩形域        RectangleF textArea = new RectangleF(rectX, rectY, rectWidth, rectHeight);        //定义字体        System.Drawing.Font font = new System.Drawing.Font("微软雅黑", fontSize, System.Drawing.FontStyle.Bold);        //font.Bold = true;        //白笔刷，画文字用        Brush whiteBrush = new SolidBrush(System.Drawing.Color.DodgerBlue);           //黑笔刷，画背景用        //Brush blackBrush = new SolidBrush(Color.Black);           //g.FillRectangle(blackBrush, rectX, rectY, rectWidth, rectHeight);        g.DrawString(text, font, whiteBrush, textArea);         //输出方法一：将文件生成并保存到C盘        string path = @Application.streamingAssetsPath + "/test2.jpg";        bitmap.Save(path, System.Drawing.Imaging.ImageFormat.Jpeg);         g.Dispose();        bitmap.Dispose();        image.Dispose();    }}
原文点击这里
阅读全文
0 0