animatectl.cs

如题,mobile开发中遇到图片按钮不能使用gif

using System;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Imaging;

namespace AnimateControl
{
	
	public enum FrameLayouts
	{
		Horisontal = 0,
		Vertical = 1
	}

	/// <summary>
	/// Summary description for AnimateCtl.
	/// </summary>
	public class AnimateCtl : System.Windows.Forms.Control
	{
		private Bitmap bitmap;
		private int frameCount;
		private int frameWidth;
		private  int frameHeight;
		private Graphics graphics;
		private int currentFrame = 0;
		private int loopCount = 0;
		private int loopCounter = 0;
		
		private System.Windows.Forms.Timer fTimer;


		public Bitmap Bitmap
		{
			get{return bitmap;}
			set
			{
				bitmap = value;
			}

		}

		public AnimateCtl()
		{
			//Cache the Graphics object
			graphics = this.CreateGraphics();
			//Instanciate the Timer
			fTimer = new System.Windows.Forms.Timer();
			//Hook up to the Timer's Tick event
		    fTimer.Tick += new System.EventHandler(this.timer1_Tick);
				
		}

		private void timer1_Tick(object sender, System.EventArgs e)
		{
			if (loopCount == -1) //loop continuosly
			{
				this.DrawFrame();
			}
			else
			{
				if (loopCount == loopCounter) //stop the animation
					fTimer.Enabled = false;	
				else
					this.DrawFrame();

			}
		}


		public void StartAnimation(int frWidth, int DelayInterval, int LoopCount)
		{
			
			frameWidth = frWidth;
			//How many times to loop
			loopCount = LoopCount;
			//Reset loop counter
			loopCounter = 0;
			//Calculate the frameCount
			frameCount = bitmap.Width / frameWidth;
			frameHeight = bitmap.Height;
			//Resize the control
			this.Size = new Size(frameWidth, frameHeight);
			//Assign delay interval to the timer
			fTimer.Interval = DelayInterval;
			//Start the timer
			fTimer.Enabled = true;
		}


		public void StopAnimation()
		{
				
			fTimer.Enabled = false;			
		}

		private void DrawFrame()
		{
			if (currentFrame < frameCount-1)
			{
				currentFrame++;
			}
			else
			{
				//increment the loopCounter
				loopCounter++;
				currentFrame = 0;
			}
			Draw(currentFrame);
		}


		private void Draw(int iframe)
		{
			//Calculate the left location of the drawing frame
			int XLocation = iframe * frameWidth;

			Rectangle rect = new Rectangle(XLocation, 0, frameWidth, frameHeight);
			
			//Draw image
			graphics.DrawImage(bitmap, 0, 0, rect, GraphicsUnit.Pixel);
		}


		
	}
}