form1.h

《VC++2005编程实例》第三章的源代码

#pragma once


namespace Example {

	using namespace System;
	using namespace System::ComponentModel;
	using namespace System::Collections;
	using namespace System::Windows::Forms;
	using namespace System::Data;
	using namespace System::Drawing;

	/// <summary>
	/// Form1 摘要
	///
	/// 警告: 如果更改此类的名称，则需要更改
	///          与此类所依赖的所有 .resx 文件关联的托管资源编译器工具的
	///          “资源文件名”属性。否则，
	///          设计器将不能与此窗体的关联
	///          本地化资源正确交互。
	/// </summary>
	public ref class Form1 : public System::Windows::Forms::Form
	{
	public:
		Form1(void)
		{
			InitializeComponent();
			//
			//TODO: 在此处添加构造函数代码
			//
		}

	protected:
		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		~Form1()
		{
			if (components)
			{
				delete components;
			}
		}
	private: System::Windows::Forms::Label^  label1;
	private: System::Windows::Forms::TextBox^  textBox1;
	private: System::Windows::Forms::Button^  button1;
	private: System::Windows::Forms::OpenFileDialog^  openFileDialog1;
	private: System::Windows::Forms::Panel^  panel1;
	protected: 

	private:
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
		/// <summary>
		/// 设计器支持所需的方法 - 不要
		/// 使用代码编辑器修改此方法的内容。
		/// </summary>
		void InitializeComponent(void)
		{
			this->label1 = (gcnew System::Windows::Forms::Label());
			this->textBox1 = (gcnew System::Windows::Forms::TextBox());
			this->button1 = (gcnew System::Windows::Forms::Button());
			this->openFileDialog1 = (gcnew System::Windows::Forms::OpenFileDialog());
			this->panel1 = (gcnew System::Windows::Forms::Panel());
			this->SuspendLayout();
			// 
			// label1
			// 
			this->label1->AutoSize = true;
			this->label1->Location = System::Drawing::Point(3, 15);
			this->label1->Name = L"label1";
			this->label1->Size = System::Drawing::Size(89, 12);
			this->label1->TabIndex = 0;
			this->label1->Text = L"图像文件路径：";
			// 
			// textBox1
			// 
			this->textBox1->Location = System::Drawing::Point(98, 10);
			this->textBox1->Name = L"textBox1";
			this->textBox1->Size = System::Drawing::Size(210, 21);
			this->textBox1->TabIndex = 1;
			// 
			// button1
			// 
			this->button1->Location = System::Drawing::Point(310, 10);
			this->button1->Name = L"button1";
			this->button1->Size = System::Drawing::Size(75, 23);
			this->button1->TabIndex = 2;
			this->button1->Text = L"浏览图像";
			this->button1->UseVisualStyleBackColor = true;
			this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
			// 
			// openFileDialog1
			// 
			this->openFileDialog1->FileName = L"openFileDialog1";
			// 
			// panel1
			// 
			this->panel1->BorderStyle = System::Windows::Forms::BorderStyle::Fixed3D;
			this->panel1->Location = System::Drawing::Point(5, 40);
			this->panel1->Name = L"panel1";
			this->panel1->Size = System::Drawing::Size(380, 170);
			this->panel1->TabIndex = 3;
			this->panel1->Paint += gcnew System::Windows::Forms::PaintEventHandler(this, &Form1::panel1_Paint);
			// 
			// Form1
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(6, 12);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->ClientSize = System::Drawing::Size(390, 214);
			this->Controls->Add(this->panel1);
			this->Controls->Add(this->button1);
			this->Controls->Add(this->textBox1);
			this->Controls->Add(this->label1);
			this->Name = L"Form1";
			this->StartPosition = System::Windows::Forms::FormStartPosition::CenterScreen;
			this->Text = L"演示显示多帧动画图像";
			this->ResumeLayout(false);
			this->PerformLayout();

		}
#pragma endregion
	private:Bitmap^  MyBitmap;
	private:bool MyAnimate;
//更新显示设备
public:System::Void OnImageAnimate(System::Object^ sender, System::EventArgs^  e)
{
	System::Threading::Thread::Sleep(100);
    this->panel1->Invalidate(this->panel1->ClientRectangle);
}

//浏览图像	
	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
    this->MyAnimate = false;
   this->openFileDialog1->Filter = "GIF图像文件(*.gif)|*.gif|所有图像文件(JPeg, Gif, Bmp, etc.)|*.jpg;*.jpeg; *.gif;*.bmp;*.tif; *.tiff; *.png| JPeg图像文件(*.jpg;*.jpeg) |*.jpg;*.jpeg |BMP图像文件(*.bmp)|*.bmp|Tiff图像文件(*.tif;*.tiff)| *.tif;*.tiff|Png图像文件(*.png)| *.png |所有文件(*.*)|*.*";
   if (this->openFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
   {
      String^ MyFileName = this->openFileDialog1->FileName;
      this->textBox1->Text = MyFileName;       
	  this->MyBitmap=(Bitmap^)System::Drawing::Image::FromFile(MyFileName);
	  if(ImageAnimator::CanAnimate(MyBitmap))
      {
         this->MyAnimate=true;
		 ImageAnimator::Animate(MyBitmap,gcnew EventHandler(this,&Example::Form1::OnImageAnimate));
      }
   }   
}
//显示动画图像
private: System::Void panel1_Paint(System::Object^  sender, System::Windows::Forms::PaintEventArgs^  e) {
   if(this->MyBitmap==nullptr)
      return;
   if(this->MyAnimate==true)
   {
	   ImageAnimator::UpdateFrames(MyBitmap);
	   e->Graphics->DrawImage(MyBitmap,0, 0);
   }
 }
};
}