form1.h

我的新光盘里的"如何绘制汽车速度计的设计"有点用吧

#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: 如果您更改该类的名称，则需要更改 
	///          与该类所依赖的所有 .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关联的
	///          本地化资源正确交互。
	/// </summary>
	public __gc class Form1 : public System::Windows::Forms::Form
	{	
	public:
		Form1(void)
		{
			InitializeComponent();
		}
  
	protected:
		void Dispose(Boolean disposing)
		{
			if (disposing && components)
			{
				components->Dispose();
			}
			__super::Dispose(disposing);
		}
	private: System::Windows::Forms::PictureBox *  pictureBox1;
	private: System::Windows::Forms::Label *  label1;
	private: System::Windows::Forms::TextBox *  textBox1;
	private: System::Windows::Forms::Button *  button1;
	private: System::Windows::Forms::Button *  button2;
	private: System::Windows::Forms::Button *  button3;
	private: System::Windows::Forms::OpenFileDialog *  openFileDialog1;
	private: System::Windows::Forms::SaveFileDialog *  saveFileDialog1;

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

		/// <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)
		{
			System::Resources::ResourceManager *  resources = new System::Resources::ResourceManager(__typeof(Example::Form1));
			this->pictureBox1 = new System::Windows::Forms::PictureBox();
			this->label1 = new System::Windows::Forms::Label();
			this->textBox1 = new System::Windows::Forms::TextBox();
			this->button1 = new System::Windows::Forms::Button();
			this->button2 = new System::Windows::Forms::Button();
			this->button3 = new System::Windows::Forms::Button();
			this->openFileDialog1 = new System::Windows::Forms::OpenFileDialog();
			this->saveFileDialog1 = new System::Windows::Forms::SaveFileDialog();
			this->SuspendLayout();
			// 
			// pictureBox1
			// 
			this->pictureBox1->BorderStyle = System::Windows::Forms::BorderStyle::Fixed3D;
			this->pictureBox1->Image = (__try_cast<System::Drawing::Image *  >(resources->GetObject(S"pictureBox1.Image")));
			this->pictureBox1->Location = System::Drawing::Point(0, 0);
			this->pictureBox1->Name = S"pictureBox1";
			this->pictureBox1->Size = System::Drawing::Size(344, 176);
			this->pictureBox1->SizeMode = System::Windows::Forms::PictureBoxSizeMode::StretchImage;
			this->pictureBox1->TabIndex = 0;
			this->pictureBox1->TabStop = false;
			// 
			// label1
			// 
			this->label1->Location = System::Drawing::Point(0, 192);
			this->label1->Name = S"label1";
			this->label1->Size = System::Drawing::Size(72, 16);
			this->label1->TabIndex = 1;
			this->label1->Text = S"标记文本：";
			// 
			// textBox1
			// 
			this->textBox1->Location = System::Drawing::Point(64, 184);
			this->textBox1->Name = S"textBox1";
			this->textBox1->Size = System::Drawing::Size(88, 21);
			this->textBox1->TabIndex = 2;
			this->textBox1->Text = S"图片天下";
			// 
			// button1
			// 
			this->button1->Location = System::Drawing::Point(152, 184);
			this->button1->Name = S"button1";
			this->button1->Size = System::Drawing::Size(64, 23);
			this->button1->TabIndex = 3;
			this->button1->Text = S"浏览";
			this->button1->Click += new System::EventHandler(this, button1_Click);
			// 
			// button2
			// 
			this->button2->Location = System::Drawing::Point(216, 184);
			this->button2->Name = S"button2";
			this->button2->Size = System::Drawing::Size(64, 23);
			this->button2->TabIndex = 4;
			this->button2->Text = S"添加";
			this->button2->Click += new System::EventHandler(this, button2_Click);
			// 
			// button3
			// 
			this->button3->Location = System::Drawing::Point(280, 184);
			this->button3->Name = S"button3";
			this->button3->Size = System::Drawing::Size(64, 23);
			this->button3->TabIndex = 5;
			this->button3->Text = S"保存";
			this->button3->Click += new System::EventHandler(this, button3_Click);
			// 
			// openFileDialog1
			// 
			this->openFileDialog1->Filter = S"Image files (JPeg, Gif, Bmp, etc.)|*.jpg;*.jpeg;*.gif;*.bmp;*.tif; *.tiff; *.png|" 
				S" JPeg files (*.jpg;*.jpeg)|*.jpg;*.jpeg |GIF files (*.gif)|*.gif |BMP files (*.b" 
				S"mp)|*.bmp|Tiff files (*.tif;*.tiff)|*.tif;*.tiff|Png files (*.png)| *.png |All f" 
				S"iles (*.*)|*.*";
			// 
			// Form1
			// 
			this->AutoScaleBaseSize = System::Drawing::Size(6, 14);
			this->ClientSize = System::Drawing::Size(344, 214);
			this->Controls->Add(this->button3);
			this->Controls->Add(this->button2);
			this->Controls->Add(this->button1);
			this->Controls->Add(this->textBox1);
			this->Controls->Add(this->label1);
			this->Controls->Add(this->pictureBox1);
			this->MaximizeBox = false;
			this->Name = S"Form1";
			this->StartPosition = System::Windows::Forms::FormStartPosition::CenterScreen;
			this->Text = S"演示在图像上添加标记";
			this->ResumeLayout(false);

		}	
	private: System::Void button1_Click(System::Object *  sender, System::EventArgs *  e)
			 {//浏览
				 if(this->openFileDialog1->ShowDialog()==DialogResult::OK)
					{
						this->pictureBox1->Image=System::Drawing::Bitmap::FromFile(this->openFileDialog1->FileName);	
					}
			 }

private: System::Void button2_Click(System::Object *  sender, System::EventArgs *  e)
		 {//添加
			Image* MyImage=this->pictureBox1->Image;
		    int MyFont=300;
            bool bMyFound;		
			int MyWidth=MyImage->Width;
			int MyHeight=MyImage->Height;
            int size=MyWidth*MyHeight;
            Bitmap* MyPattern= new Bitmap(MyWidth,MyHeight);
			Bitmap* MyBitmap = new Bitmap(MyImage);
			Graphics* g = Graphics::FromImage(MyPattern);
			Graphics* MyGraphics =Graphics::FromImage(MyImage);
            bMyFound=false;
			g->Clear(Color::White);
            while(bMyFound==false)
            {
				System::Drawing::Font* NewFont = new System::Drawing::Font("Georgia", MyFont, System::Drawing::FontStyle::Bold);				
				SizeF MyString= System::Drawing::SizeF(MyWidth,MyHeight);
				MyString=g->MeasureString(this->textBox1->Text,NewFont);
				if(MyString.Width<MyPattern->Width)
                {
					if (MyString.Height<MyPattern->Height)
                    {
                        bMyFound=true;
						g->DrawString(this->textBox1->Text, NewFont, new SolidBrush(Color::Black),1,1);
                    }
                }
                else
                    MyFont=MyFont-1;			
            }
	
            for(int x=1;x<MyPattern->Width;x++)
            {
                for(int y=1;y<MyPattern->Height;y++)
                {
					int a,re,gr,bl,x1,y1,z1;            
					if(MyPattern->GetPixel(x,y).ToArgb()==Color::Black.ToArgb())
                    {					
						a=MyBitmap->GetPixel(x,y).A;
						re=MyBitmap->GetPixel(x,y).R;
						gr=MyBitmap->GetPixel(x,y).G;
						bl=MyBitmap->GetPixel(x,y).B;												
                        x1=re;
                        y1=gr;
                        z1=bl;												
                        if (bl+25<255)
                            bl=bl+25;					
                        if (gr+25<255)
                            gr=gr+25;						
                        if (re+25<255)
                            re=re+25;
                        if (x1-25>0)
                            x1=x1-25;					
                        if (y1-25>0)
                            y1=y1-25;						
                        if (z1-25>0)
                            z1=z1-25;							
						MyGraphics->DrawEllipse(new Pen(new SolidBrush(Color::Black)),x,y+1,3,3);
						MyGraphics->DrawEllipse(new Pen(new SolidBrush(Color::FromArgb(a,x1,y1,z1))),x,y,1,1);
                    }				
                }		
            }
			this->pictureBox1->Image=MyImage;
		 }

private: System::Void button3_Click(System::Object *  sender, System::EventArgs *  e)
		 {//保存
			 if(this->saveFileDialog1->ShowDialog()==DialogResult::OK)
			 {
				 Image* MyImage=this->pictureBox1->Image;
				 MyImage->Save(String::Concat(this->saveFileDialog1->FileName,".jpg"),System::Drawing::Imaging::ImageFormat::Jpeg);
			 }
		 }

};
}