Thumbnails/*
Description: Generates thumbnails according to the specified size
Author: blue.dream
*/
Using System;
Using System.Drawing;
Using System.Drawing.Imaging;
Using System.Collections;
Using System.ComponentModel;
Using System.Windows.Forms;
Using System.Data;
Using System.IO;
Namespace test
{
<summary>
Summary description of the Form1.
</summary>
public class Form1:System.Windows.Forms.Form
{
The number of digits that declare the random number generated by the cryptographic character
public const int LENGTH = 32;
To declare the length of the separation before and after the encrypted character
public const int LEN = 4;
Private System.Windows.Forms.GroupBox GroupBox1;
Private System.Windows.Forms.GroupBox GroupBox2;
Private System.Windows.Forms.Button Btn_browser;
Private System.Windows.Forms.Button button2;
Private System.Windows.Forms.PictureBox Imgsource;
Private System.Windows.Forms.PictureBox Imgobject;
private string sourcefile;
Private System.Windows.Forms.Label Label1;
Private System.Windows.Forms.ComboBox Local;
<summary>
The required designer variable.
</summary>
Private System.ComponentModel.Container components = null;
Public Form1 ()
{
//
Required for Windows Forms Designer support
//
InitializeComponent ();
This. Init ();
//
TODO: Add any constructor code after the InitializeComponent call
//
}
private void Init ()
{
DataTable ht = new DataTable ();
DataColumn Objcol = new DataColumn ("Keys");
Objcol. DataType = typeof (System.String);
Ht. Columns.Add (Objcol);
Objcol = new DataColumn ("Value");
Objcol. DataType = typeof (System.Int32);
Ht. Columns.Add (Objcol);
DataRow row = ht. NewRow ();
Row[0] = "800*600";
ROW[1] = 1;
Ht. Rows.Add (row);
row = Ht. NewRow ();
Row[0] = "640*480";
ROW[1] = 2;
Ht. Rows.Add (row);
row = Ht. NewRow ();
Row[0] = "420*360";
ROW[1] = 3;
Ht. Rows.Add (row);
row = Ht. NewRow ();
Row[0] = "340*270";
ROW[1] = 4;
Ht. Rows.Add (row);
row = Ht. NewRow ();
Row[0] = "240*180";
ROW[1] = 5;
Ht. Rows.Add (row);
row = Ht. NewRow ();
Row[0] = "120*90";
ROW[1] = 6;
Ht. Rows.Add (row);
This.local.DataSource = HT;
This.local.DisplayMember = "Keys";
This.local.ValueMember = "Value";
}
<summary>
Clean up all resources that are in use.
</summary>
protected override void Dispose (bool disposing)
{
if (disposing)
{
if (Components!= null)
{
Components. Dispose ();
}
}
Base. Dispose (disposing);
}
#region Windows Form Designer generated code
<summary>
Designer supports required methods-do not use the Code editor to modify
The contents of this method.
</summary>
private void InitializeComponent ()
{
This.groupbox1 = new System.Windows.Forms.GroupBox ();
This.imgsource = new System.Windows.Forms.PictureBox ();
This.groupbox2 = new System.Windows.Forms.GroupBox ();
This.imgobject = new System.Windows.Forms.PictureBox ();
This.btn_browser = new System.Windows.Forms.Button ();
This.button2 = new System.Windows.Forms.Button ();
this.local = new System.Windows.Forms.ComboBox ();
This.label1 = new System.Windows.Forms.Label ();
This.groupBox1.SuspendLayout ();
This.groupBox2.SuspendLayout ();
This. SuspendLayout ();
//
GroupBox1
//
This.groupBox1.Controls.AddRange (new system.windows.forms.control[] {
This.imgsource});
This.groupBox1.Name = "GroupBox1";
This.groupBox1.Size = new System.Drawing.Size (288, 296);
This.groupBox1.TabIndex = 0;
This.groupBox1.TabStop = false;
This.groupBox1.Text = "source Diagram";
//
Imgsource
//
This.imgSource.Location = new System.Drawing.Point (8, 16);
This.imgSource.Name = "Imgsource";
This.imgSource.Size = new System.Drawing.Size (272, 272);
This.imgSource.TabIndex = 0;
This.imgSource.TabStop = false;
//
GroupBox2
//
This.groupBox2.Controls.AddRange (new system.windows.forms.control[] {
This.imgobject});
This.groupBox2.Location = new System.Drawing.Point (304, 0);
This.groupBox2.Name = "GroupBox2";
This.groupBox2.Size = new System.Drawing.Size (352, 296);
This.groupBox2.TabIndex = 0;
This.groupBox2.TabStop = false;
This.groupBox2.Text = "Result graph";
//
Imgobject
//
This.imgObject.Location = new System.Drawing.Point (8, 16);
This.imgObject.Name = "Imgobject";
This.imgObject.Size = new System.Drawing.Size (336, 272);
This.imgObject.TabIndex = 0;
This.imgObject.TabStop = false;
//
Btn_browser
//
This.btn_Browser.Location = new System.Drawing.Point (24, 312);
This.btn_Browser.Name = "Btn_browser";
This.btn_Browser.TabIndex = 1;
This.btn_Browser.Text = "source Diagram";
This.btn_Browser.Click + = new System.EventHandler (This.btn_browser_click);
//
Button2
//
This.button2.Location = new System.Drawing.Point (552, 312);
This.button2.Name = "Button2";
This.button2.TabIndex = 2;
This.button2.Text = "Build";
This.button2.Click + = new System.EventHandler (This.button2_click);
//
Local
//
This.local.Location = new System.Drawing.Point (256, 312);
This.local.Name = "local";
This.local.Size = new System.Drawing.Size (112, 20);
This.local.TabIndex = 4;
This.local.Text = "-Please choose-";
//
Label1
//
This.label1.Location = new System.Drawing.Point (216, 312);
This.label1.Name = "Label1";
This.label1.Size = new System.Drawing.Size (32, 23);
This.label1.TabIndex = 6;
This.label1.Text = "Size";
This.label1.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
Form1
//
This. AutoScaleBaseSize = new System.Drawing.Size (6, 14);
This. ClientSize = new System.Drawing.Size (664, 365);
This. Controls.AddRange (new system.windows.forms.control[] {
This.label1,
This.local,
This.button2,
This.btn_browser,
This.groupbox1,
This.groupbox2});
This. Name = "Form1";
This. Text = "Form1";
This.groupBox1.ResumeLayout (FALSE);
This.groupBox2.ResumeLayout (FALSE);
This. ResumeLayout (FALSE);
}
#endregion
<summary>
The main entry point for the application.
</summary>
[STAThread]
static void Main ()
{
Application.Run (New Form1 ());
}
private void Btn_browser_click (object sender, System.EventArgs e)
{
using (OpenFileDialog dlg = new OpenFileDialog ())
{
if (dlg. ShowDialog () = = DialogResult.OK)
{
string file = Dlg. FileName;
if (file.exists (File))
{
This. sourcefile = file;
Imgsource.image = new Bitmap (file);
}
}
Dlg. Dispose ();
}
}
private void Button2_Click (object sender, System.EventArgs e)
{
int select = (int) this.local.SelectedValue;
Point P = new Point (340,270);
Switch (SELECT)
{
Case 1:
p.x = 800;
P.Y = 600;
Break
Case 2:
p.x = 640;
P.Y = 480;
Break
Case 3:
p.x = 480;
P.Y = 360;
Break
Case 4:
P.Y = 340;
p.x = 270;
Break
Case 5:
p.x = 240;
P.Y = 180;
Break
Case 6:
p.x = 120;
P.Y = 90;
Break
}
Generate Destination file address
FileInfo objfile = new FileInfo (this. SourceFile);
string filepath = Objfile.directoryname;
string filename = Objfile.name;
String savefile = filepath + "\\Thumb" +filename;
If Makethumbnailimage (this. Sourcefile,savefile,p.x,p.y,objfile.extension.tolower ()))
This.imgObject.Image = new Bitmap (savefile);
Else
MessageBox.Show ("Faild");
}
<summary>
Generate thumbnails by the specified size
</summary>
<param name= "sourcefile" > Source Files </param>
<param name= "SaveFile" > Storage file </param>
<param name= "width" > thumbnail widths </param>
<param name= "height" > Thumbnail Heights </param>
<param name= "strtype" > File type </param>
<returns></returns>
private bool Makethumbnailimage (string sourcefile,string savefile,int width,int height,string strtype)
{
if (! File.exists (sourcefile))//Determine if the file exists
return false;
bool result = true;
Bitmap sourceimage = new Bitmap (sourcefile);
System.Drawing.Image.GetThumbnailImageAbort mycallback = new Image.getthumbnailimageabort (thumbnailcallback);
Image objimage = Sourceimage.getthumbnailimage (Width,height,mycallback,intptr.zero); Get thumbnail image
Try
{
Objimage.save (Savefile,getimagetype (strtype));
}
Catch
{
result = false;
}
Finally
{
Objimage.dispose ();
Sourceimage.dispose ();
}
return result;
}
Private System.Drawing.Imaging.ImageFormat Getimagetype (string strtype)
{
Switch (strtype)
{
Case ". jpg":
return imageformat.jpeg;
Case ". JPEG":
return imageformat.jpeg;
Case ". gif":
return imageformat.gif;
Case ". bmp":
return imageformat.bmp;
Case ". Tiff":
return Imageformat.tiff;
Case ". ico":
return Imageformat.icon;
Case ". png":
return imageformat.png;
Case ". EMF":
return imageformat.emf;
Default
return imageformat.jpeg;
}
}
private bool Thumbnailcallback ()
{
return false;
}
}
}
