GDI+提供的反走样技术

GDI+提供的反走样技术

 

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Drawing2D;

namespace 反走样
{
        /**//// <summary>
        /// Form1 的摘要说明。
        /// </summary>
        public class Form1 : System.Windows.Forms.Form
        {
                /**//// <summary>
                /// 必需的设计器变量。
                /// </summary>
                private System.ComponentModel.Container components = null;

                public Form1()
                {
                        //
                        // Windows 窗体设计器支持所必需的
                        //
                        InitializeComponent();

                        //
                        // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
                        //
                }

                /**//// <summary>
                /// 清理所有正在使用的资源。
                /// </summary>
                protected override void Dispose( bool disposing )
                {
                        if( disposing )
                        {
                                if (components != null)    
                                {
                                        components.Dispose();
                                }
                        }
                        base.Dispose( disposing );
                }

Windows Form Designer generated code#region Windows Form Designer generated code
                /**//// <summary>
                /// 设计器支持所需的方法 - 不要使用代码编辑器修改
                /// 此方法的内容。
                /// </summary>
                private void InitializeComponent()
                {
                        //    
                        // Form1
                        //    
                        this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
                        this.ClientSize = new System.Drawing.Size(768, 478);
                        this.Name = "Form1";
                        this.Text = "Form1";

                }
                #endregion

                /**//// <summary>
                /// 应用程序的主入口点。
                /// </summary>
                [STAThread]
                static void Main()    
                {
                        Application.Run(new Form1());
                }

                protected override void OnPaint(PaintEventArgs e)
                {
                        Graphics    g= e.Graphics;
                        //放大8倍
                        g.ScaleTransform(8, 8);
                        //绘制没有反走样效果的图形和文字
                        Draw(g, "没有反走样");
                        //设置反走样
                        g.SmoothingMode = SmoothingMode.AntiAlias;
                        //g.SmoothingMode = SmoothingMode.HighQuality;
                        //向右平移40，绘制有反走样效果的图形和文字
                        g.TranslateTransform(40, 0);
                        Draw(g, "反走样");
                }

                private void Draw(Graphics g, string s)
                {
                        //绘一条直线段、一个椭圆和一个字符串
                        g.DrawLine(Pens.Gray, 10, 10, 40, 20);
                        g.DrawEllipse(Pens.Gray, 20, 20, 30, 10);
                        //string s= "反走样测试";
                        Font font=new Font("宋体", 5);
                        SolidBrush brush=new SolidBrush(Color.Gray);
                        g.DrawString(s, font, brush, 10, 40);
                }
        }
}