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Form1.cs
Package: VC#.NET范例.rar [view]
Upload User: chinafred
Upload Date: 2007-08-14
Package Size: 10127k
Code Size: 6k
Category:
ADO-ODBC
Development Platform:
C#
- using System;
- using System.Drawing;
- using System.Collections;
- using System.ComponentModel;
- using System.Windows.Forms;
- using System.Data;
- using System.Drawing.Drawing2D;
- namespace ch2_4
- {
- /// <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;
- private System.Windows.Forms.ContextMenu contextMenu1;
- private System.Windows.Forms.MenuItem menuItem1;
- private System.Windows.Forms.MenuItem menuItem2;
- private System.Windows.Forms.MenuItem menuItem3;
- private System.Windows.Forms.MenuItem menuItem4;
- private System.Windows.Forms.MenuItem menuItem5;
- private System.Drawing.Brush backgroundBrush;
- private System.Windows.Forms.MenuItem menuItem6;
- private System.Windows.Forms.MenuItem menuItem7;
- private System.Windows.Forms.MenuItem menuItem8;
- //代表旋转的角度
- private float rotate=0;
- private System.Windows.Forms.MenuItem menuItem9;
- //代表放大的倍数
- private float size=1;
- 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 );
- }
- #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()
- {
- this.contextMenu1 = new System.Windows.Forms.ContextMenu();
- this.menuItem1 = new System.Windows.Forms.MenuItem();
- this.menuItem2 = new System.Windows.Forms.MenuItem();
- this.menuItem3 = new System.Windows.Forms.MenuItem();
- this.menuItem4 = new System.Windows.Forms.MenuItem();
- this.menuItem5 = new System.Windows.Forms.MenuItem();
- this.menuItem6 = new System.Windows.Forms.MenuItem();
- this.menuItem7 = new System.Windows.Forms.MenuItem();
- this.menuItem8 = new System.Windows.Forms.MenuItem();
- this.menuItem9 = new System.Windows.Forms.MenuItem();
- //
- // contextMenu1
- //
- this.contextMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
- this.menuItem1,
- this.menuItem2,
- this.menuItem3,
- this.menuItem4,
- this.menuItem6,
- this.menuItem7,
- this.menuItem8,
- this.menuItem9,
- this.menuItem5});
- //
- // menuItem1
- //
- this.menuItem1.Index = 0;
- this.menuItem1.Text = "旋转45度";
- this.menuItem1.Click += new System.EventHandler(this.menuItem1_Click);
- //
- // menuItem2
- //
- this.menuItem2.Index = 1;
- this.menuItem2.Text = "旋转90度";
- this.menuItem2.Click += new System.EventHandler(this.menuItem2_Click);
- //
- // menuItem3
- //
- this.menuItem3.Index = 2;
- this.menuItem3.Text = "旋转120度";
- this.menuItem3.Click += new System.EventHandler(this.menuItem3_Click);
- //
- // menuItem4
- //
- this.menuItem4.Index = 3;
- this.menuItem4.Text = "旋转180度";
- this.menuItem4.Click += new System.EventHandler(this.menuItem4_Click);
- //
- // menuItem5
- //
- this.menuItem5.Index = 8;
- this.menuItem5.Text = "还原";
- this.menuItem5.Click += new System.EventHandler(this.menuItem5_Click);
- //
- // menuItem6
- //
- this.menuItem6.Index = 4;
- this.menuItem6.Text = "-";
- //
- // menuItem7
- //
- this.menuItem7.Index = 5;
- this.menuItem7.Text = "放大120%";
- this.menuItem7.Click += new System.EventHandler(this.menuItem7_Click);
- //
- // menuItem8
- //
- this.menuItem8.Index = 6;
- this.menuItem8.Text = "缩小80%";
- this.menuItem8.Click += new System.EventHandler(this.menuItem8_Click);
- //
- // menuItem9
- //
- this.menuItem9.Index = 7;
- this.menuItem9.Text = "-";
- //
- // Form1
- //
- this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
- this.ClientSize = new System.Drawing.Size(480, 357);
- this.ContextMenu = this.contextMenu1;
- this.Name = "Form1";
- this.Text = "图形的旋转和缩放";
- }
- #endregion
- protected override void OnPaint(PaintEventArgs e)
- {
- Graphics g = e.Graphics;
- g.SmoothingMode = SmoothingMode.AntiAlias;
- g.FillRectangle(new SolidBrush(Color.FromArgb(180, Color.White)), ClientRectangle);
- //将全局变换矩阵重置为单位矩阵,即不旋转
- g.ResetTransform();
- //设置旋转角度
- g.RotateTransform(this.rotate);
- //设置一个缩放变化,变换顺序为增加
- g.ScaleTransform(this.size,this.size,MatrixOrder.Append);
- //设置一个平移变换,变换顺序为添加
- g.TranslateTransform(200,130,MatrixOrder.Append);
- //绘制图形
- g.FillRectangle(new SolidBrush(Color.SlateBlue), 0, 0, 100, 125);
- }
- /// <summary>
- /// 应用程序的主入口点。
- /// </summary>
- [STAThread]
- static void Main()
- {
- Application.Run(new Form1());
- }
- private void menuItem1_Click(object sender, System.EventArgs e)
- {
- this.rotate=45;
- this.Refresh();
- }
- private void menuItem2_Click(object sender, System.EventArgs e)
- {
- this.rotate=90;
- this.Refresh();
- }
- private void menuItem3_Click(object sender, System.EventArgs e)
- {
- this.rotate=120;
- this.Refresh();
- }
- private void menuItem4_Click(object sender, System.EventArgs e)
- {
- this.rotate=180;
- this.Refresh();
- }
- private void menuItem5_Click(object sender, System.EventArgs e)
- {
- this.rotate=0;
- this.size=1;
- this.Refresh();
- }
- private void menuItem7_Click(object sender, System.EventArgs e)
- {
- this.size=1.2f;
- this.Refresh();
- }
- private void menuItem8_Click(object sender, System.EventArgs e)
- {
- this.size=0.8f;
- this.Refresh();
- }
- }
- }