Mã:
using System;using System.Drawing;using System.Drawing.Drawing2D;using System.Drawing.Imaging;using System.Collections;using System.ComponentModel;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.ComponentModel.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.components = new System.ComponentModel.Container(); this.cmdGo = new System.Windows.Forms.Button(); this.T1 = new System.Windows.Forms.Timer(this.components); 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(); } }}
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