Csharp/C Sharp/GUI Windows Form/Bitmap
Содержание
Bitmap Color
<source lang="csharp"> /* GDI+ Programming in C# and VB .NET by Nick Symmonds Publisher: Apress ISBN: 159059035X
- /
using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace BitmapColor_c {
/// <summary>
/// Summary description for Form1.
/// </summary>
public class BitmapColor : System.Windows.Forms.Form
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ruponentModel.Container components = null;
public BitmapColor()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
}
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new BitmapColor());
}
private void Form1_Load(object sender, System.EventArgs e)
{
ColorPalette cp;
String s;
Bitmap bmp = new Bitmap("crane.jpg");
cp = bmp.Palette;
foreach (Color c in cp.Entries)
{
s = c.ToString();
}
}
protected override void OnPaint(PaintEventArgs e)
{
Bitmap bmp = new Bitmap("crane.jpg");
Color c;
e.Graphics.DrawImage( bmp, 10, 30 );
for ( int x=0; x<bmp.Width-1; x++ )
{
for ( int y=0; y<bmp.Height-1; y++ )
{
c = bmp.GetPixel( x, y );
c = Color.FromArgb( c.ToArgb() + 100 );
bmp.SetPixel( x, y, c );
}
}
e.Graphics.DrawImage( bmp, 150, 30 );
}
}
}
</source>
<A href="http://www.nfex.ru/Code/CSharpDownload/BitmapColor-c.zip">BitmapColor-c.zip( 7 k)</a>
Bitmap Demo
<source lang="csharp"> /* GDI+ Programming in C# and VB .NET by Nick Symmonds Publisher: Apress ISBN: 159059035X
- /
using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace BitMapExt_c {
/// <summary>
/// Summary description for Form1.
/// </summary>
public class BitMapExt : System.Windows.Forms.Form
{
#region Class Local Variables
private Bitmap WholeBMP;
private Bitmap SaveBMP;
private Bitmap TLBMP;
private Bitmap TRBMP;
private Bitmap BLBMP;
private Bitmap BRBMP;
private Rectangle DrawRect;
private Point TLpt;
private Point TRpt;
private Point BLpt;
private Point BRpt;
private int Counter = 0;
private ImageAttributes Ia;
#endregion
private System.ruponentModel.IContainer components;
private System.Windows.Forms.Timer T1;
private System.Windows.Forms.Button cmdGo;
public BitMapExt() {
InitializeComponent();
this.SetStyle(ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
WholeBMP = new Bitmap("crane.jpg");
DrawRect = new Rectangle(0, 0, WholeBMP.Width, WholeBMP.Height);
DrawRect.X = this.Width/2 - WholeBMP.Width/2;
DrawRect.Y = this.Height/2 - WholeBMP.Height/2;
T1.Interval = 75;
T1.Enabled = false;
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
if (WholeBMP != null)
WholeBMP.Dispose();
if (SaveBMP != null)
SaveBMP.Dispose();
if (TLBMP != null)
TLBMP.Dispose();
if (TRBMP != null)
TRBMP.Dispose();
if (BLBMP != null)
BLBMP.Dispose();
if (BRBMP != null)
BRBMP.Dispose();
if (Ia != null)
Ia.Dispose();
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.ruponents = new System.ruponentModel.Container();
this.cmdGo = new System.Windows.Forms.Button();
this.T1 = new System.Windows.Forms.Timer(this.ruponents);
this.SuspendLayout();
//
// cmdGo
//
this.cmdGo.Location = new System.Drawing.Point(328, 336);
this.cmdGo.Name = "cmdGo";
this.cmdGo.Size = new System.Drawing.Size(48, 24);
this.cmdGo.TabIndex = 0;
this.cmdGo.Text = "GO";
this.cmdGo.Click += new System.EventHandler(this.Explode);
//
// T1
//
this.T1.Tick += new System.EventHandler(this.T1_Tick);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(392, 373);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.cmdGo});
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Exploding Bitmap";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion
[STAThread]
static void Main()
{
Application.Run(new BitMapExt());
}
private void Form1_Load(object sender, System.EventArgs e)
{
}
protected override void OnPaint(PaintEventArgs e)
{
Graphics G = e.Graphics;
if ( WholeBMP != null )
{
G.DrawImage(WholeBMP, DrawRect);
return;
}
if ( TLBMP != null )
G.DrawImage( TLBMP, new Rectangle(TLpt, TLBMP.Size),
0, 0,
TLBMP.Width, TLBMP.Height,
GraphicsUnit.Pixel,
Ia );
if ( TRBMP != null )
G.DrawImage( TRBMP, new Rectangle(TRpt, TRBMP.Size),
0, 0,
TRBMP.Width, TRBMP.Height,
GraphicsUnit.Pixel,
Ia );
if ( BLBMP != null )
G.DrawImage( BLBMP, new Rectangle(BLpt, BLBMP.Size),
0, 0,
BLBMP.Width, BLBMP.Height,
GraphicsUnit.Pixel,
Ia );
if ( BRBMP != null )
G.DrawImage( BRBMP, new Rectangle(BRpt, BRBMP.Size),
0, 0,
BRBMP.Width, BRBMP.Height,
GraphicsUnit.Pixel,
Ia );
}
private void Explode(object sender, System.EventArgs e)
{
if ( WholeBMP != null )
{
cmdGo.Enabled = false;
int L = 0;
int T = 0;
int Cx = (int)(WholeBMP.Width/2);
int Cy = (int)(WholeBMP.Height/2);
Rectangle R1 = new Rectangle( L, T, Cx, Cy );
Rectangle R2 = new Rectangle( Cx, T, Cx, Cy );
Rectangle R3 = new Rectangle( L, Cy, Cx, Cy );
Rectangle R4 = new Rectangle( Cx, Cy, Cx, Cy );
SaveBMP = WholeBMP;
TLBMP = WholeBMP.Clone(new Rectangle( L, T, Cx, Cy ),
WholeBMP.PixelFormat);
TRBMP = WholeBMP.Clone(new Rectangle( Cx, T, Cx, Cy ),
WholeBMP.PixelFormat);
BLBMP = WholeBMP.Clone(new Rectangle( L, Cy, Cx, Cy ),
WholeBMP.PixelFormat);
BRBMP = WholeBMP.Clone(new Rectangle( Cx, Cy, Cx, Cy ),
WholeBMP.PixelFormat);
WholeBMP = null;
int Gap = 10;
TLpt = new Point( DrawRect.Left-Gap, DrawRect.Top-Gap );
TRpt = new Point( DrawRect.Left+Cx+Gap, DrawRect.Top-Gap );
BLpt = new Point( DrawRect.Left-Gap, DrawRect.Top+Cy+Gap );
BRpt = new Point( DrawRect.Left+Cx+Gap, DrawRect.Top+Cy+Gap );
T1.Enabled = true;
Invalidate();
}
}
private void T1_Tick(object sender, System.EventArgs e)
{
Counter += 1;
if ( Counter == 62 )
{
Counter = 0;
cmdGo.Enabled = true;
T1.Enabled = false;
WholeBMP = SaveBMP;
}
TLpt.X-=1;
TLpt.Y-=1;
TRpt.X+=1;
TRpt.Y-=1;
BLpt.X-=1;
BLpt.Y+=1;
BRpt.X+=1;
BRpt.Y+=1;
// Initialize a color matrix.
//Set the alpha for the whole image
float[][] m ={new float[] {1, 0, 0, 0, 0},
new float[] {0, 1, 0, 0, 0},
new float[] {0, 0, 1, 0, 0},
new float[] {0, 0, 0, (1-(float)Counter/62), 0},
new float[] {0, 0, 0, 0, 1}};
ColorMatrix cm = new ColorMatrix(m);
// Create an ImageAttributes object and set its color matrix.
Ia = new ImageAttributes();
Ia.SetColorMatrix( cm, ColorMatrixFlag.Default,
ColorAdjustType.Bitmap);
TLBMP.RotateFlip(RotateFlipType.Rotate90FlipNone);
TRBMP.RotateFlip(RotateFlipType.Rotate90FlipNone);
BLBMP.RotateFlip(RotateFlipType.Rotate90FlipNone);
BRBMP.RotateFlip(RotateFlipType.Rotate90FlipNone);
Invalidate();
}
}
}
</source>
<A href="http://www.nfex.ru/Code/CSharpDownload/BitMapExt-c.zip">BitMapExt-c.zip( 8 k)</a>
Bitmap Other
<source lang="csharp"> /* GDI+ Programming in C# and VB .NET by Nick Symmonds Publisher: Apress ISBN: 159059035X
- /
using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace BitmapOther_c {
/// <summary>
/// Summary description for BitmapOther.
/// </summary>
public class BitmapOther : System.Windows.Forms.Form
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ruponentModel.Container components = null;
public BitmapOther()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
//
// BitmapOther
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Name = "BitmapOther";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "BitmapOther";
this.Load += new System.EventHandler(this.BitmapOther_Load);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new BitmapOther());
}
private void BitmapOther_Load(object sender, System.EventArgs e)
{
}
protected override void OnPaint ( PaintEventArgs e )
{
Bitmap BMP = new Bitmap("Colorbars.JPG");
Point Pt = new Point(20,20);
// BMP.SetPixel(15,20,Color.Black);
BMP.MakeTransparent( BMP.GetPixel(15,25) );
e.Graphics.DrawImage(BMP, Pt);
e.Graphics.DrawLine(new Pen(Brushes.GreenYellow,30),60,60,200,60);
} } }
</source>
<A href="http://www.nfex.ru/Code/CSharpDownload/BitmapOther-c.zip">BitmapOther-c.zip( 5 k)</a>
Bitmap Viewer Host
<source lang="csharp"> /* User Interfaces in C#: Windows Forms and Custom Controls by Matthew MacDonald Publisher: Apress ISBN: 1590590457
- /
using System.Drawing; using System.Windows.Forms; using System.IO; using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace BitmapViewerHost {
/// <summary>
/// Summary description for BitmapViewerHost.
/// </summary>
public class BitmapViewerHost : System.Windows.Forms.Form
{
private BitmapViewer bitmapViewer1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ruponentModel.Container components = null;
public BitmapViewerHost()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.bitmapViewer1 = new BitmapViewer();
this.SuspendLayout();
//
// bitmapViewer1
//
this.bitmapViewer1.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right);
this.bitmapViewer1.Dimension = 80;
this.bitmapViewer1.Directory = null;
this.bitmapViewer1.DockPadding.All = 1;
this.bitmapViewer1.Location = new System.Drawing.Point(12, 12);
this.bitmapViewer1.Name = "bitmapViewer1";
this.bitmapViewer1.Size = new System.Drawing.Size(300, 244);
this.bitmapViewer1.Spacing = 10;
this.bitmapViewer1.TabIndex = 0;
this.bitmapViewer1.PictureSelected += new BitmapViewer.PictureSelectedDelegate(this.bitmapViewer1_PictureSelected);
//
// BitmapViewerHost
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(320, 266);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.bitmapViewer1});
this.Name = "BitmapViewerHost";
this.Text = "BitmapViewerHost";
this.Load += new System.EventHandler(this.BitmapViewerHost_Load);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new BitmapViewerHost());
}
private void BitmapViewerHost_Load(object sender, System.EventArgs e)
{
bitmapViewer1.Directory = Application.StartupPath;
bitmapViewer1.Directory = "c:\\windows";
}
private void bitmapViewer1_PictureSelected(object sender, PictureSelectedEventArgs e)
{
MessageBox.Show("You chose " + e.FileName);
}
}
/// <summary>
/// Summary description for BitmapViewer.
/// </summary>
public class BitmapViewer : System.Windows.Forms.UserControl
{
internal System.Windows.Forms.Panel pnlPictures;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ruponentModel.Container components = null;
public BitmapViewer()
{
// This call is required by the Windows.Forms Form Designer.
InitializeComponent();
// TODO: Add any initialization after the InitForm call
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.pnlPictures = new System.Windows.Forms.Panel();
this.SuspendLayout();
//
// pnlPictures
//
this.pnlPictures.AutoScroll = true;
this.pnlPictures.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.pnlPictures.Dock = System.Windows.Forms.DockStyle.Fill;
this.pnlPictures.Location = new System.Drawing.Point(1, 1);
this.pnlPictures.Name = "pnlPictures";
this.pnlPictures.Size = new System.Drawing.Size(530, 218);
this.pnlPictures.TabIndex = 1;
//
// BitmapViewer
//
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.pnlPictures});
this.DockPadding.All = 1;
this.Name = "BitmapViewer";
this.Size = new System.Drawing.Size(532, 220);
this.ResumeLayout(false);
}
#endregion
public delegate void PictureSelectedDelegate(object sender, PictureSelectedEventArgs e);
public event PictureSelectedDelegate PictureSelected;
// The directory that will be scanned for image.
private string directory="";
// Each picture box will be a square of dimension X dimension pixels.
private int dimension;
// The space between the images and the top, left, and right sides.
private int border = 5;
// The space between each image.
private int spacing;
// The images that were found in the selected directory.
private ArrayList images = new ArrayList();
public string Directory
{
get
{
return directory;
}
set
{
directory = value;
GetImages();
UpdateDisplay();
}
}
public int Dimension
{
get
{
return dimension;
}
set
{
dimension = value;
UpdateDisplay();
}
}
public int Spacing
{
get
{
return spacing;
}
set
{
spacing = value;
UpdateDisplay();
}
}
private void GetImages()
{
images.Clear();
if (this.Directory != "" && this.directory != null)
{
DirectoryInfo dir = new DirectoryInfo(directory);
foreach (FileInfo file in dir.GetFiles("*.bmp"))
{
images.Add(new NamedImage(Bitmap.FromFile(file.FullName), file.Name));
}
}
}
private void UpdateDisplay()
{
// Clear the current display.
pnlPictures.Controls.Clear();
// Row and Col will track the current position where pictures are
// being inserted. They begin at the top-right corner.
int row = border, col = border;
// Iterate through the Images collection, and create PictureBox controls.
foreach (NamedImage image in images)
{
PictureBox pic = new PictureBox();
pic.Image = image.Image;
pic.Tag = image.FileName;
pic.Size = new Size(dimension, dimension);
pic.Location = new Point(col, row);
pic.BorderStyle = BorderStyle.FixedSingle;
// StrechImage mode gives us the "thumbnail" ability.
pic.SizeMode = PictureBoxSizeMode.StretchImage;
// Display the picture.
pnlPictures.Controls.Add(pic);
// Move to the next column.
col += dimension + spacing;
// Handle the event.
pic.Click += new EventHandler(this.pic_Click);
// Move to next line if no more pictures will fit.
if ((col + dimension + spacing + border) > this.Width)
{
col = border;
row += dimension + spacing;
}
}
}
public void RefreshImages()
{
GetImages();
UpdateDisplay();
}
protected override void OnSizeChanged(System.EventArgs e)
{
UpdateDisplay();
base.OnSizeChanged(e);
}
private PictureBox picSelected;
private void pic_Click(object sender, System.EventArgs e)
{
// Clear the border style from the last selected picture box.
if (picSelected != null)
{
picSelected.BorderStyle = BorderStyle.FixedSingle;
}
// Get the new selection.
picSelected = (PictureBox)sender;
picSelected.BorderStyle = BorderStyle.Fixed3D;
// Fire the selection event.
PictureSelectedEventArgs args = new
PictureSelectedEventArgs((string)picSelected.Tag, picSelected.Image);
if (PictureSelected != null)
{
PictureSelected(this, args);
}
}
private class NamedImage
{
public Image Image;
public string FileName;
public NamedImage(Image image, string fileName)
{
this.Image = image;
this.FileName = fileName;
}
}
}
public class PictureSelectedEventArgs : EventArgs
{
public string FileName;
public Image Image;
public PictureSelectedEventArgs(String fileName, Image image)
{
this.FileName = fileName;
this.Image = image;
}
}
}
</source>
Output color by R G B value for a Bitmap
<source lang="csharp"> using System; using System.IO; using System.Drawing; using System.Drawing.Imaging; public class Analyzer {
public static void Main() {
Image sample = new Bitmap("a.jpg");
MemoryStream buf = new MemoryStream();
sample.Save(buf, ImageFormat.Bmp);
byte[] currentImage = buf.GetBuffer();
int[] stats = new int[3];
for (int i = 0; i < currentImage.Length; ){
for (int j = 0; j < 3; j++) {
stats[j] += currentImage[i];
++i;
}
}
Console.WriteLine("Blue: " + stats[0]);
Console.WriteLine("Green: " + stats[1]);
Console.WriteLine("Red: " + stats[2]);
if ((stats[0] > stats[1]) && (stats[0] > stats[2]))
Console.WriteLine("This is a cold picture.");
if ((stats[1] > stats[0]) && (stats[1] > stats[2]))
Console.WriteLine("This is a summer picture.");
if ((stats[2] > stats[0]) && (stats[2] > stats[1]))
Console.WriteLine("This is a fiery picture.");
}
}
</source>
