form1.cs

GDI+图形程序设计第九章源码,此章节为讲述高级二维图形,包括颜色混合,Alpha混合等高级应用.

 using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;

namespace BlendingSamp
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.MainMenu mainMenu1;
		private System.Windows.Forms.MenuItem menuItem1;
		private System.Windows.Forms.MenuItem ColorBlending;
		private System.Windows.Forms.MenuItem AlphaBlending;
		private System.Windows.Forms.MenuItem menuItem2;
		private System.Windows.Forms.MenuItem EllipseMenu;
		private System.Windows.Forms.MenuItem RectangleMenu;
		private System.Windows.Forms.MenuItem menuItem3;
		private System.Windows.Forms.MenuItem MixedBlendingMenu;
		private System.Windows.Forms.MenuItem menuItem4;
		private System.Windows.Forms.MenuItem SetBlendTriangularShapeMenu;
		private System.Windows.Forms.MenuItem SetSigmaBellShapeMenu;
		private System.Windows.Forms.MenuItem BlendPropMenu;
		private System.Windows.Forms.MenuItem InterpolationColorsMenu;
		private System.Windows.Forms.MenuItem GammaCorrectionMenu;
		private System.Windows.Forms.MenuItem menuItem5;
		private System.Windows.Forms.MenuItem PathGradientProsMenu;
		private System.Windows.Forms.MenuItem PathGBBlend;
		private System.Windows.Forms.MenuItem PathGBInterPol;
		private System.Windows.Forms.MenuItem AlphaBPensBrushes;
		private System.Windows.Forms.MenuItem AlphaBImages;
		private System.Windows.Forms.MenuItem AlphaBCompGammaCorr;
		private System.Windows.Forms.MenuItem AlphaBMatrix;
		private System.Windows.Forms.MenuItem CompBlendTSigmaBell;
		private System.Windows.Forms.MenuItem MixedBlending;
		private System.Windows.Forms.MenuItem menuItem6;
		private System.Windows.Forms.MenuItem CompBlendTSigmaBellMEnu;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// 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.mainMenu1 = new System.Windows.Forms.MainMenu();
			this.menuItem1 = new System.Windows.Forms.MenuItem();
			this.ColorBlending = new System.Windows.Forms.MenuItem();
			this.AlphaBlending = new System.Windows.Forms.MenuItem();
			this.MixedBlendingMenu = new System.Windows.Forms.MenuItem();
			this.menuItem2 = new System.Windows.Forms.MenuItem();
			this.EllipseMenu = new System.Windows.Forms.MenuItem();
			this.RectangleMenu = new System.Windows.Forms.MenuItem();
			this.menuItem3 = new System.Windows.Forms.MenuItem();
			this.SetBlendTriangularShapeMenu = new System.Windows.Forms.MenuItem();
			this.SetSigmaBellShapeMenu = new System.Windows.Forms.MenuItem();
			this.BlendPropMenu = new System.Windows.Forms.MenuItem();
			this.InterpolationColorsMenu = new System.Windows.Forms.MenuItem();
			this.GammaCorrectionMenu = new System.Windows.Forms.MenuItem();
			this.CompBlendTSigmaBell = new System.Windows.Forms.MenuItem();
			this.menuItem5 = new System.Windows.Forms.MenuItem();
			this.PathGradientProsMenu = new System.Windows.Forms.MenuItem();
			this.PathGBBlend = new System.Windows.Forms.MenuItem();
			this.PathGBInterPol = new System.Windows.Forms.MenuItem();
			this.menuItem4 = new System.Windows.Forms.MenuItem();
			this.AlphaBPensBrushes = new System.Windows.Forms.MenuItem();
			this.AlphaBImages = new System.Windows.Forms.MenuItem();
			this.AlphaBCompGammaCorr = new System.Windows.Forms.MenuItem();
			this.AlphaBMatrix = new System.Windows.Forms.MenuItem();
			this.MixedBlending = new System.Windows.Forms.MenuItem();
			this.menuItem6 = new System.Windows.Forms.MenuItem();
			this.CompBlendTSigmaBellMEnu = new System.Windows.Forms.MenuItem();
			// 
			// mainMenu1
			// 
			this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.menuItem1,
																					  this.menuItem2,
																					  this.menuItem4});
			// 
			// menuItem1
			// 
			this.menuItem1.Index = 0;
			this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.ColorBlending,
																					  this.AlphaBlending,
																					  this.MixedBlendingMenu,
																					  this.menuItem6});
			this.menuItem1.Text = "Blending";
			// 
			// ColorBlending
			// 
			this.ColorBlending.Index = 0;
			this.ColorBlending.Text = "Color Blending";
			this.ColorBlending.Click += new System.EventHandler(this.ColorBlending_Click);
			// 
			// AlphaBlending
			// 
			this.AlphaBlending.Index = 1;
			this.AlphaBlending.Text = "Alpha Blending";
			this.AlphaBlending.Click += new System.EventHandler(this.AlphaBlending_Click);
			// 
			// MixedBlendingMenu
			// 
			this.MixedBlendingMenu.Index = 2;
			this.MixedBlendingMenu.Text = "Mixed Blending";
			this.MixedBlendingMenu.Click += new System.EventHandler(this.MixedBlendingMenu_Click);
			// 
			// menuItem2
			// 
			this.menuItem2.Index = 1;
			this.menuItem2.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.EllipseMenu,
																					  this.RectangleMenu,
																					  this.menuItem3,
																					  this.menuItem5});
			this.menuItem2.Text = "Color Blending";
			// 
			// EllipseMenu
			// 
			this.EllipseMenu.Index = 0;
			this.EllipseMenu.Text = "Ellipse";
			this.EllipseMenu.Click += new System.EventHandler(this.EllipseMenu_Click);
			// 
			// RectangleMenu
			// 
			this.RectangleMenu.Index = 1;
			this.RectangleMenu.Text = "Rectangle";
			this.RectangleMenu.Click += new System.EventHandler(this.RectangleMenu_Click);
			// 
			// menuItem3
			// 
			this.menuItem3.Index = 2;
			this.menuItem3.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.SetBlendTriangularShapeMenu,
																					  this.SetSigmaBellShapeMenu,
																					  this.BlendPropMenu,
																					  this.InterpolationColorsMenu,
																					  this.GammaCorrectionMenu,
																					  this.CompBlendTSigmaBell,
																					  this.CompBlendTSigmaBellMEnu});
			this.menuItem3.Text = "LinearGradientBrush";
			// 
			// SetBlendTriangularShapeMenu
			// 
			this.SetBlendTriangularShapeMenu.Index = 0;
			this.SetBlendTriangularShapeMenu.Text = "SetBlendTriangularShape";
			this.SetBlendTriangularShapeMenu.Click += new System.EventHandler(this.SetBlendTriangularShapeMenu_Click);
			// 
			// SetSigmaBellShapeMenu
			// 
			this.SetSigmaBellShapeMenu.Index = 1;
			this.SetSigmaBellShapeMenu.Text = "SetSigmaBellShape";
			this.SetSigmaBellShapeMenu.Click += new System.EventHandler(this.SetSigmaBellShapeMenu_Click);
			// 
			// BlendPropMenu
			// 
			this.BlendPropMenu.Index = 2;
			this.BlendPropMenu.Text = "Blend";
			this.BlendPropMenu.Click += new System.EventHandler(this.BlendPropMenu_Click);
			// 
			// InterpolationColorsMenu
			// 
			this.InterpolationColorsMenu.Index = 3;
			this.InterpolationColorsMenu.Text = "InterpolationColors";
			this.InterpolationColorsMenu.Click += new System.EventHandler(this.InterpolationColorsMenu_Click);
			// 
			// GammaCorrectionMenu
			// 
			this.GammaCorrectionMenu.Index = 4;
			this.GammaCorrectionMenu.Text = "GammaCorrection";
			this.GammaCorrectionMenu.Click += new System.EventHandler(this.GammaCorrectionMenu_Click);
			// 
			// CompBlendTSigmaBell
			// 
			this.CompBlendTSigmaBell.Index = 5;
			this.CompBlendTSigmaBell.Text = "Compare BlendTriangular and SigmaBell Shapes";
			this.CompBlendTSigmaBell.Click += new System.EventHandler(this.CompBlendTSigmaBell_Click);
			// 
			// menuItem5
			// 
			this.menuItem5.Index = 3;
			this.menuItem5.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.PathGradientProsMenu,
																					  this.PathGBBlend,
																					  this.PathGBInterPol});
			this.menuItem5.Text = "PathGradientBrush";
			// 
			// PathGradientProsMenu
			// 
			this.PathGradientProsMenu.Index = 0;
			this.PathGradientProsMenu.Text = "Properties";
			this.PathGradientProsMenu.Click += new System.EventHandler(this.PathGradientProsMenu_Click);
			// 
			// PathGBBlend
			// 
			this.PathGBBlend.Index = 1;
			this.PathGBBlend.Text = "Blend";
			this.PathGBBlend.Click += new System.EventHandler(this.PathGBBlend_Click);
			// 
			// PathGBInterPol
			// 
			this.PathGBInterPol.Index = 2;
			this.PathGBInterPol.Text = "InterpolationColors";
			this.PathGBInterPol.Click += new System.EventHandler(this.PathGBInterPol_Click);
			// 
			// menuItem4
			// 
			this.menuItem4.Index = 2;
			this.menuItem4.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.AlphaBPensBrushes,
																					  this.AlphaBImages,
																					  this.AlphaBCompGammaCorr,
																					  this.AlphaBMatrix,
																					  this.MixedBlending});
			this.menuItem4.Text = "Alpha Blending";
			// 
			// AlphaBPensBrushes
			// 
			this.AlphaBPensBrushes.Index = 0;
			this.AlphaBPensBrushes.Text = "Pens and Brushes";
			this.AlphaBPensBrushes.Click += new System.EventHandler(this.AlphaBPensBrushes_Click);
			// 
			// AlphaBImages
			// 
			this.AlphaBImages.Index = 1;
			this.AlphaBImages.Text = "Images and Alpha Blending";
			this.AlphaBImages.Click += new System.EventHandler(this.AlphaBImages_Click);
			// 
			// AlphaBCompGammaCorr
			// 
			this.AlphaBCompGammaCorr.Index = 2;
			this.AlphaBCompGammaCorr.Text = "CompositeMode and GammaCorrection";
			this.AlphaBCompGammaCorr.Click += new System.EventHandler(this.AlphaBCompGammaCorr_Click);
			// 
			// AlphaBMatrix
			// 
			this.AlphaBMatrix.Index = 3;
			this.AlphaBMatrix.Text = "Matrix In Alpha Blending";
			this.AlphaBMatrix.Click += new System.EventHandler(this.AlphaBMatrix_Click);
			// 
			// MixedBlending
			// 
			this.MixedBlending.Index = 4;
			this.MixedBlending.Text = "Mixed Blending";
			this.MixedBlending.Click += new System.EventHandler(this.MixedBlending_Click);
			// 
			// menuItem6
			// 
			this.menuItem6.Index = 3;
			this.menuItem6.Text = "CompBlendTSigmaBell";
			// 
			// CompBlendTSigmaBellMEnu
			// 
			this.CompBlendTSigmaBellMEnu.Index = 6;
			this.CompBlendTSigmaBellMEnu.Text = "CompBlendTSigmaBell";
			this.CompBlendTSigmaBellMEnu.Click += new System.EventHandler(this.CompBlendTSigmaBellMEnu_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(424, 317);
			this.Menu = this.mainMenu1;
			this.Name = "Form1";
			this.Text = "Blending Sample";

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

private void ColorBlending_Click(object sender, System.EventArgs e)
{
	Graphics g = this.CreateGraphics();
	g.Clear(this.BackColor);
	// Create three linear gradient brushes
	LinearGradientBrush rgBrush = new LinearGradientBrush(
		new RectangleF(20, 20, 100, 100), 
		Color.Red, Color.Green,
		LinearGradientMode.Horizontal);
	LinearGradientBrush yrBrush = new LinearGradientBrush(
		new RectangleF(140, 20, 150, 300), 
		Color.Yellow, Color.Red,
		LinearGradientMode.ForwardDiagonal);	
	LinearGradientBrush rbBrush = new LinearGradientBrush(
		new RectangleF(10, 10, 50, 50),
		Color.Red, Color.Blue,
		LinearGradientMode.ForwardDiagonal);