实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace Image
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.OpenFileDialog openFileDialog1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Button button5;
private System.Windows.Forms.Button button6;
private System.Windows.Forms.Button button7;
private System.Windows.Forms.Button button8;
private System.Drawing.Bitmap MyBitmap;
/// <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 );
}
#region Windows 窗体设计器生成的代码
/// <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()
{
System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.button1 = new System.Windows.Forms.Button();
this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.button5 = new System.Windows.Forms.Button();
this.button6 = new System.Windows.Forms.Button();
this.button7 = new System.Windows.Forms.Button();
this.button8 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// pictureBox1
//
this.pictureBox1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
this.pictureBox1.Location = new System.Drawing.Point(8, 8);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(280, 192);
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;
//
// button1
//
this.button1.Location = new System.Drawing.Point(296, 8);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(96, 23);
this.button1.TabIndex = 1;
this.button1.Text = "浏览图像";
this.button1.Click = new System.EventHandler(this.button1_Click);
//
// openFileDialog1
//
this.openFileDialog1.Filter = "Image files (JPeg, Gif, Bmp, etc.)|*.jpg;*.jpeg;*.gif;*.bmp;*.tif; *.tiff; *.png|"
" JPeg files (*.jpg;*.jpeg)|*.jpg;*.jpeg |GIF files (*.gif)|*.gif |BMP files (*.b"
"mp)|*.bmp|Tiff files (*.tif;*.tiff)|*.tif;*.tiff|Png files (*.png)| *.png |All f"
"iles (*.*)|*.*";
//
// button2
//
this.button2.Location = new System.Drawing.Point(296, 32);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(96, 23);
this.button2.TabIndex = 2;
this.button2.Text = "左到右拉伸";
this.button2.Click = new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.Location = new System.Drawing.Point(296, 56);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(96, 23);
this.button3.TabIndex = 3;
this.button3.Text = "上到下拉伸";
this.button3.Click = new System.EventHandler(this.button3_Click);
//
// button4
//
this.button4.Location = new System.Drawing.Point(296, 80);
this.button4.Name = "button4";
this.button4.Size = new System.Drawing.Size(96, 23);
this.button4.TabIndex = 4;
this.button4.Text = "四周扩散";
this.button4.Click = new System.EventHandler(this.button4_Click);
//
// button5
//
this.button5.Location = new System.Drawing.Point(296, 104);
this.button5.Name = "button5";
this.button5.Size = new System.Drawing.Size(96, 23);
this.button5.TabIndex = 5;
this.button5.Text = "反转图像";
this.button5.Click = new System.EventHandler(this.button5_Click);
//
// button6
//
this.button6.Location = new System.Drawing.Point(296, 128);
this.button6.Name = "button6";
this.button6.Size = new System.Drawing.Size(96, 23);
this.button6.TabIndex = 6;
this.button6.Text = "两边拉伸";
this.button6.Click = new System.EventHandler(this.button6_Click);
//
// button7
//
this.button7.Location = new System.Drawing.Point(296, 152);
this.button7.Name = "button7";
this.button7.Size = new System.Drawing.Size(96, 23);
this.button7.TabIndex = 7;
this.button7.Text = "上下对接";
this.button7.Click = new System.EventHandler(this.button7_Click);
//
// button8
//
this.button8.Location = new System.Drawing.Point(296, 176);
this.button8.Name = "button8";
this.button8.Size = new System.Drawing.Size(96, 23);
this.button8.TabIndex = 8;
this.button8.Text = "左右对接";
this.button8.Click = new System.EventHandler(this.button8_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(400, 206);
this.Controls.Add(this.button8);
this.Controls.Add(this.button7);
this.Controls.Add(this.button6);
this.Controls.Add(this.button5);
this.Controls.Add(this.button4);
this.Controls.Add(this.button3);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.pictureBox1);
this.MaximizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "演示图像特效显示";
this.Load = new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void button1_Click(object sender, System.EventArgs e)
{//浏览图像文件
this.openFileDialog1.ShowDialog();
if(this.openFileDialog1.FileName.Trim()=="")
return;
try
{
//得到原始大小的图像
Bitmap SrcBitmap=new Bitmap(this.openFileDialog1.FileName);
//得到缩放后的图像
MyBitmap=new Bitmap(SrcBitmap,this.pictureBox1.Width,this.pictureBox1.Height);
this.pictureBox1.Image=MyBitmap;
}
catch(Exception Err)
{
MessageBox.Show(this,"打开图像文件错误！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
}
private void button2_Click(object sender, System.EventArgs e)
{//从左到右拉伸显示
int iWidth=this.pictureBox1.Width; //图像宽度
int iHeight=this.pictureBox1.Height; //图像高度
//取得Graphics对象
Graphics g=this.pictureBox1.CreateGraphics();
g.Clear(Color.Gray); //初始为全灰色
for(int x=0;x<=iWidth;x )
{
g.DrawImage(MyBitmap,0,0,x,iHeight);
}
}
private void Form1_Load(object sender, System.EventArgs e)
{
MyBitmap=(Bitmap)this.pictureBox1.Image;
}
private void button3_Click(object sender, System.EventArgs e)
{//从上到下拉伸显示
int iWidth=this.pictureBox1.Width; //图像宽度
int iHeight=this.pictureBox1.Height; //图像高度
//取得Graphics对象
Graphics g=this.pictureBox1.CreateGraphics();
g.Clear(Color.Gray); //初始为全灰色
for(int y=0;y<=iHeight;y )
{
g.DrawImage(MyBitmap,0,0,iWidth,y);
}
}
private void button4_Click(object sender, System.EventArgs e)
{//四周扩散显示
int iWidth=this.pictureBox1.Width; //图像宽度
int iHeight=this.pictureBox1.Height; //图像高度
//取得Graphics对象
Graphics g=this.pictureBox1.CreateGraphics();
g.Clear(Color.Gray); //初始为全灰色
for(int x=0;x<=iWidth/2;x )
{
Rectangle DestRect=new Rectangle(iWidth/2-x,
iHeight/2-x,2*x,2*x);
Rectangle SrcRect=new Rectangle(0,0,
MyBitmap.Width,MyBitmap.Height);
g.DrawImage(MyBitmap,DestRect,SrcRect,
GraphicsUnit.Pixel);
}
}
private void button5_Click(object sender, System.EventArgs e)
{//反转图像
int iWidth=this.pictureBox1.Width; //图像宽度
int iHeight=this.pictureBox1.Height; //图像高度
//取得Graphics对象
Graphics g=this.pictureBox1.CreateGraphics();
g.Clear(Color.Gray); //初始为全灰色
for(int x=-iWidth/2;x<=iWidth/2;x )
{
Rectangle DestRect=new Rectangle(0,iHeight/2-x,
iWidth,2*x);
Rectangle SrcRect=new Rectangle(0,0,MyBitmap.Width,MyBitmap.Height);
g.DrawImage(MyBitmap,DestRect,SrcRect,GraphicsUnit.Pixel);
}
}
private void button6_Click(object sender, System.EventArgs e)
{//两边拉伸显示
int iWidth=this.pictureBox1.Width; //图像宽度
int iHeight=this.pictureBox1.Height; //图像高度
//取得Graphics对象
Graphics g=this.pictureBox1.CreateGraphics();
g.Clear(Color.Gray); //初始为全灰色
for(int y=0;y<=iWidth/2;y )
{
Rectangle DestRect=new Rectangle(iWidth/2-y,0,
2*y,iHeight);
Rectangle SrcRect=new Rectangle(0,0,MyBitmap.Width,MyBitmap.Height);
g.DrawImage(MyBitmap,DestRect,SrcRect,GraphicsUnit.Pixel);
}
}
private void button7_Click(object sender, System.EventArgs e)
{//上下对接显示
int iWidth=this.pictureBox1.Width; //图像宽度
int iHeight=this.pictureBox1.Height; //图像高度
//取得Graphics对象
Graphics g=this.pictureBox1.CreateGraphics();
g.Clear(Color.Gray); //初始为全灰色
Bitmap bitmap=new Bitmap(iWidth,iHeight);
int x=0;
while(x<=iHeight/2)
{
for(int i=0;i<=iWidth-1;i )
{
bitmap.SetPixel(i,x,
MyBitmap.GetPixel(i,x));
}
for(int i=0;i<=iWidth-1;i )
{
bitmap.SetPixel(i,iHeight-x-1,
MyBitmap.GetPixel(i,iHeight-x-1));
}
x ;
this.pictureBox1.Refresh();
this.pictureBox1.Image=bitmap;
}
}
private void button8_Click(object sender, System.EventArgs e)
{//左右对接显示
int iWidth=this.pictureBox1.Width; //图像宽度
int iHeight=this.pictureBox1.Height; //图像高度
//取得Graphics对象
Graphics g=this.pictureBox1.CreateGraphics();
g.Clear(Color.Gray); //初始为全灰色
Bitmap bitmap=new Bitmap(iWidth,iHeight);
int x=0;
while(x<=iWidth/2)
{
for(int i=0;i<=iHeight-1;i )
{
bitmap.SetPixel(x,i,MyBitmap.GetPixel(x,i));
}
for(int i=0;i<=iHeight-1;i )
{
bitmap.SetPixel(iWidth-x-1,i,
MyBitmap.GetPixel(iWidth-x-1,i));
}
x ;
this.pictureBox1.Refresh();
this.pictureBox1.Image=bitmap;
}
}
}
}
标签： 图片
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