using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Imaging;
namespace WindowsApplication1
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Button m_btnOpen;
private System.Windows.Forms.Button m_btnSaveAs;
private System.Windows.Forms.ComboBox m_cmbOpen;
private System.Windows.Forms.ComboBox m_cmbSaveAs;
private System.Windows.Forms.PictureBox m_pictureBox;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
private Bitmap m_bitmap;
private int m_width;
private int m_height;
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
//
m_bitmap=null;
m_width()=m_pictureBox.Size.Width;
m_height()=m_pictureBox.Size.Height;
}
/// <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.m_btnOpen = new System.Windows.Forms.Button();
this.m_btnSaveAs = new System.Windows.Forms.Button();
this.m_cmbOpen = new System.Windows.Forms.ComboBox();
this.m_cmbSaveAs = new System.Windows.Forms.ComboBox();
this.m_pictureBox = new System.Windows.Forms.PictureBox();
this.SuspendLayout();
//
// m_btnOpen
//
this.m_btnOpen.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.m_btnOpen.Location = new System.Drawing.Point(8, 8);
this.m_btnOpen.Name = "m_btnOpen";
this.m_btnOpen.Size = new System.Drawing.Size(48, 23);
this.m_btnOpen.TabIndex = 0;
this.m_btnOpen.Text = "打开";
this.m_btnOpen.Click += new System.EventHandler(this.m_btnOpen_Click);
//
// m_btnSaveAs
//
this.m_btnSaveAs.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.m_btnSaveAs.Location = new System.Drawing.Point(216, 8);
this.m_btnSaveAs.Name = "m_btnSaveAs";
this.m_btnSaveAs.Size = new System.Drawing.Size(56, 23);
this.m_btnSaveAs.TabIndex = 1;
this.m_btnSaveAs.Text = "转化为";
this.m_btnSaveAs.Click += new System.EventHandler(this.m_btnSaveAs_Click);
//
// m_cmbOpen
//
this.m_cmbOpen.Items.AddRange(new object[] {
"*.bmp",
"*.jpg",
"*.gif",
"*.tif"});
this.m_cmbOpen.Location = new System.Drawing.Point(64, 8);
this.m_cmbOpen.Name = "m_cmbOpen";
this.m_cmbOpen.Size = new System.Drawing.Size(121, 20);
this.m_cmbOpen.TabIndex = 2;
this.m_cmbOpen.Text = "*.bmp";
//
// m_cmbSaveAs
//
this.m_cmbSaveAs.Items.AddRange(new object[] {
"*.bmp",
"*.jpg",
"*.gif",
"*.tif"});
this.m_cmbSaveAs.Location = new System.Drawing.Point(277, 10);
this.m_cmbSaveAs.Name = "m_cmbSaveAs";
this.m_cmbSaveAs.Size = new System.Drawing.Size(121, 20);
this.m_cmbSaveAs.TabIndex = 3;
this.m_cmbSaveAs.Text = "*.bmp";
//
// m_pictureBox
//
this.m_pictureBox.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.m_pictureBox.Location = new System.Drawing.Point(0, 40);
this.m_pictureBox.Name = "m_pictureBox";
this.m_pictureBox.Size = new System.Drawing.Size(400, 208);
this.m_pictureBox.TabIndex = 4;
this.m_pictureBox.TabStop = false;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(408, 301);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.m_pictureBox,
this.m_cmbSaveAs,
this.m_cmbOpen,
this.m_btnSaveAs,
this.m_btnOpen});
this.Name = "Form1";
this.Text = "Image Converter";
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 m_btnOpen_Click(object sender, System.EventArgs e)
{
//创建一个打开对话框对象
OpenFileDialog ofd=new OpenFileDialog();
//设置对话框属性
ofd.Filter=m_cmbOpen.Text+"|"+m_cmbOpen.Text;
string filter=ofd.Filter;
ofd.InitialDirectory=System.Environment.CurrentDirectory;
ofd.Title="打开图象文件";
ofd.ShowHelp=true;
if(ofd.ShowDialog()==DialogResult.OK)
{
//如果是OK,则建立一个图象对象
string strFileName=ofd.FileName;
m_btnmap=new Bitmap(strFileName);
//调整m_pictureBox的大小以适合图象大小
if(m_bitmap.Width>m_bitmap.Height)
{
//保持宽度
m_pictureBox.Width=m_width();
m_pictureBox.Height=(int)((double)m_bitmap.Height*m_width()/m_bitmap.Width);
}
else
{
//保持高度
m_pictureBox.Height=m_height();
m_pictureBox.Width=(int)((double)m_bitmap.Width*m_width()/m_bitmap.Height);
}
//显示图片
m_pictureBox.Image=m_bitmap;
//设置窗体标题
this.Text="Image Converter"+strFileName;
m_btnSaveAs.Enabled=true;
}
}
private void m_btnSaveAs_Click(object sender, System.EventArgs e)
{
//创建一个保存对话框对象
SaveFileDialog sfd=new SaveFileDialog();
//设置对话框的各项属性
sfd.Title="转化为";
sfd.OverwritePrompt=true;
sfd.CheckFileExists=true;
sfd.Filter=m_cmbSaveAs.Text+"|"+m_cmbSaveAs.Text;
sfd.ShowHelp=true;
if(sfd.ShowDialog()==DialogResult.OK)
{
//如果是OK,则根据不同的选项保存为相应格式的文件
string strFilename=sfd.FileName;
switch(m_cmbSaveAs.Text)
{
case "*.bmp":
//在这里用ImageFormat类
m_bitmap.Save(strFilename,ImageFormat.Bmp);
break;
case "*.jpg":
//在这里用ImageFormat类
m_bitmap.Save(strFilename,ImageFormat.Jpeg);
break;
case "*.gif":
//在这里用ImageFormat类
m_bitmap.Save(strFilename,ImageFormat.Gif);
break;
case "*.tif":
//在这里用ImageFormat类
m_bitmap.Save(strFilename,ImageFormat.Tiff);
break;
}
this.Text="Image Converter:"+strFileName;
}
}
}
}
