Csharp/C Sharp by API/System.Drawing.Drawing2D/GraphicsPath

Материал из .Net Framework эксперт
Перейти к: навигация, поиск

GraphicsPath.AddArc

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Drawing.Drawing2D; public class Form1 : Form {

       GraphicsPath path;
     public Form1() {
           InitializeComponent();
           
     }
   private void GraphicsPathHit_Paint(object sender, PaintEventArgs e)
   {
     e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
     path = new GraphicsPath();
     path.StartFigure();
     path.AddArc(10, 10, 100, 100, 20, 50);
     path.AddLine(20, 50, 70, 230);
     path.CloseFigure();
     path.AddEllipse(120, 50, 80, 80);
     e.Graphics.FillPath(Brushes.White, path);
     e.Graphics.DrawPath(Pens.Black, path);
   }
   private void GraphicsPathHit_MouseDown(object sender, MouseEventArgs e)
   {
     if (path.IsVisible(e.X, e.Y))
     {
       MessageBox.Show("You clicked inside the figure.");
     }
   }
   private void InitializeComponent()
   {
     this.SuspendLayout();
     // 
     // GraphicsPathHit
     // 
     this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
     this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
     this.ClientSize = new System.Drawing.Size(292, 266);
     this.Name = "GraphicsPathHit";
     this.Text = "GraphicsPathHit";
     this.Paint += new System.Windows.Forms.PaintEventHandler(this.GraphicsPathHit_Paint);
     this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.GraphicsPathHit_MouseDown);
     this.ResumeLayout(false);
   }
     [STAThread]
     static void Main()
     {
       Application.EnableVisualStyles();
       Application.Run(new Form1());
     }

}

 </source>


GraphicsPath.AddBezier

<source lang="csharp">

 using System;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 using System.Drawing.Imaging;
 public class Form1 : System.Windows.Forms.Form
 {
   public Form1()
   {
     InitializeComponent();
   }
   private void InitializeComponent()
   {
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Text = "";
     this.Resize += new System.EventHandler(this.Form1_Resize);
     this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
   }
   static void Main() 
   {
     Application.Run(new Form1());
   }
   private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
   {      
     Graphics g = e.Graphics;
     g.FillRectangle(Brushes.White, this.ClientRectangle);
     GraphicsPath gp = new GraphicsPath();
     // Create a figure
     gp.AddLine(10, 10, 10, 50);
     gp.AddBezier(10, 50, 130, 55, 25, 70, 30, 70);
     gp.AddLine(30, 70, 60, 70);
     gp.AddBezier(60, 70, 555, 70, 90, 55, 90, 50);
     gp.AddLine(90, 50, 90, 30);
     // Create another figure
     gp.StartFigure();
     gp.AddLine(60, 110, 40, 160);
     gp.AddLine(40, 160, 60, 180);
     g.DrawPath(Pens.Black, gp);
     gp.Dispose();
   }
   private void Form1_Resize(object sender, System.EventArgs e)
   {
     Invalidate();
   }
 }
  
 </source>


GraphicsPath.AddEllipse

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Drawing.Drawing2D; using System.Text; using System.Windows.Forms; public class Form1 : Form {

   protected override void OnPaint(PaintEventArgs e) {
   Graphics g = e.Graphics;
   g.FillRectangle(Brushes.White, this.ClientRectangle);
   GraphicsPath gp = new GraphicsPath();
   
   gp.AddRectangle(new Rectangle(10, 50, 80, 20));
   gp.AddEllipse(50, 10, 20, 80);
   g.DrawPath(Pens.Black, gp);
   gp.Dispose();
   }
   public static void Main() {
       Application.Run(new Form1());
   }

}

 </source>


GraphicsPath.AddLine

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Drawing.Drawing2D; using System.Text; using System.Windows.Forms; public class Form1 : Form {

   protected override void OnPaint(PaintEventArgs e) {
   Graphics g = e.Graphics;
   g.FillRectangle(Brushes.White, this.ClientRectangle);
   GraphicsPath gp = new GraphicsPath();
   gp.AddLine(10, 10, 10, 50);
   gp.AddBezier(10, 50, 10, 55, 25, 70, 30, 70);
   gp.AddLine(30, 70, 60, 70);
   gp.StartFigure();
   gp.AddLine(60, 110, 40, 160);
   gp.CloseAllFigures();
   g.DrawPath(Pens.Black, gp);
   gp.Dispose();
   }
   public static void Main() {
       Application.Run(new Form1());
   }

}

 </source>


GraphicsPath.AddRectangle

<source lang="csharp">

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; using System.Drawing.Drawing2D; // PathGradientBrush namespace PathGradient {

   public class PathGradient : System.Windows.Forms.Form
   {
       private System.ruponentModel.Container components = null;
       public PathGradient()
       {
           this.Text = "PathGradient - CenterPoint";
           this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
           this.ClientSize = new System.Drawing.Size(256, 213);
           this.Name = "PathGradient";
           this.Text = "PathGradient";
       }
       static void Main() 
       {
           Application.Run(new PathGradient());
       }
       protected override void OnPaint(PaintEventArgs e)
       {   
           Graphics g = e.Graphics;
           Font f = new Font(new FontFamily("Times New Roman"), 10);
           Brush fb = new SolidBrush(Color.Black);
           GraphicsPath gp;
           PathGradientBrush pGB;  // namespace System.Drawing.Drawing2D;
           Rectangle rec;
           Color cR = Color.Red, cW = Color.White, cY = Color.Yellow;
           int w = 100, h = 70;
           // Left upper rectangle:
           g.DrawString("Center", f, fb, 10, 5);
           gp = new GraphicsPath();
           rec = new Rectangle(10, 20, w, h);
           gp.AddRectangle(rec);
           pGB = new PathGradientBrush(gp);
           pGB.CenterPoint = new Point(10 + w/2, 20 + h/2);
           pGB.CenterColor = cR;
           pGB.SurroundColors = new Color[1]{cW};
           g.FillRectangle(pGB, rec);
           // Right upper rectangle:
           g.DrawString("Center - 2 x 2 Colors", f, fb, w + 20, 5);
           gp = new GraphicsPath();
           rec = new Rectangle(20 + w, 20, w, h);
           gp.AddRectangle(rec);
           pGB = new PathGradientBrush(gp);
           pGB.CenterPoint = new Point(w + 20 + w/2, 20 + h/2);
           pGB.CenterColor = cR;
           pGB.SurroundColors = new Color[4]{cW, cY, cW, cY};
           g.FillRectangle(pGB, rec);
           // Left down rectangle:
           g.DrawString("LefTopCenter", f, fb, 10, h + 25);
           gp = new GraphicsPath();
           rec = new Rectangle(10, h + 40, w, h);
           gp.AddRectangle(rec);
           pGB = new PathGradientBrush(gp);
           pGB.CenterPoint = new Point(10, h + 40);
           pGB.CenterColor = cR;
           pGB.SurroundColors = new Color[1]{cW};
           g.FillRectangle(pGB, rec);
           // Ellipse
           g.DrawString("Top", f, fb, w + 20, h + 25);
           gp = new GraphicsPath();
           rec = new Rectangle(w + 20, h + 40, w, h);
           gp.AddEllipse(rec);
           pGB = new PathGradientBrush(gp);
           pGB.CenterPoint = new Point(w + 20 + w/2, h + 40);
           pGB.CenterColor = cR;
           pGB.SurroundColors = new Color[1]{cW};
           g.FillRectangle(pGB, rec);
           g.Dispose();    
           fb.Dispose();
       }
   }

}


 </source>


GraphicsPath.AddString

<source lang="csharp">

 using System;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 using System.Drawing.Imaging;
 public class Form1 : System.Windows.Forms.Form
 {
   public Form1()
   {
     InitializeComponent();
   }
   private void InitializeComponent()
   {
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Text = "";
     this.Resize += new System.EventHandler(this.Form1_Resize);
     this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
   }
   static void Main() 
   {
     Application.Run(new Form1());
   }
   private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
   {      
     Graphics g = e.Graphics;
     g.FillRectangle(Brushes.White, this.ClientRectangle);
     GraphicsPath gp = new GraphicsPath();
     gp.AddString("www.nfex.ru", new FontFamily("Times New Roman"),
           (int)(FontStyle.Bold | FontStyle.Italic),
           144, new Point(5, 5), StringFormat.GenericTypographic);
     g.SetClip(gp);
     g.DrawImage(new Bitmap("winter.jpg"), this.ClientRectangle);
     gp.Dispose();
   }
   private void Form1_Resize(object sender, System.EventArgs e)
   {
     Invalidate();
   }
 }
  
 </source>


GraphicsPath.CloseFigure()

<source lang="csharp">

 using System;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 using System.Drawing.Imaging;
 public class Form1 : System.Windows.Forms.Form
 {
   public Form1()
   {
     InitializeComponent();
   }
   private void InitializeComponent()
   {
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Text = "";
     this.Resize += new System.EventHandler(this.Form1_Resize);
     this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
   }
   static void Main() 
   {
     Application.Run(new Form1());
   }
   private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
   {      
     Graphics g = e.Graphics;
     g.FillRectangle(Brushes.White, this.ClientRectangle);
     GraphicsPath gp = new GraphicsPath();
     // Create a figure
     gp.AddLine(10, 10, 10, 50);
     gp.AddBezier(10, 50, 10, 55, 25, 70, 30, 70);
     gp.AddLine(30, 70, 60, 70);
     gp.CloseFigure();
     gp.StartFigure();
     gp.AddLine(60, 110, 40, 160);
     g.DrawPath(Pens.Black, gp);
     gp.Dispose();
   }
   private void Form1_Resize(object sender, System.EventArgs e)
   {
     Invalidate();
   }
 }
  
 </source>


GraphicsPath.StartFigure()

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Drawing.Drawing2D; using System.Text; using System.Windows.Forms; public class Form1 : Form {

   protected override void OnPaint(PaintEventArgs e) {
   Graphics g = e.Graphics;
   g.FillRectangle(Brushes.White, this.ClientRectangle);
   GraphicsPath gp = new GraphicsPath();
   gp.AddLine(10, 10, 10, 50);
   gp.AddBezier(10, 50, 10, 55, 25, 70, 30, 70);
   gp.StartFigure();
   gp.AddLine(60, 110, 40, 160);
   g.DrawPath(Pens.Black, gp);
   gp.Dispose();
   }
   public static void Main() {
       Application.Run(new Form1());
   }

}

 </source>


GraphicsPath.Transform

<source lang="csharp"> using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms;

class FontMenuForm: Form {

    protected string strText = "Tall in the Center";
    protected Font font = new Font("Times New Roman", 24);
  
    public static void Main()
    {
         Application.Run(new FontMenuForm());
    }
    public FontMenuForm()
    {
         ResizeRedraw = true;
    }
    protected void DoPage(Graphics grfx, Color clr, int cx, int cy)
    {
         GraphicsPath path = new GraphicsPath();
         float fFontSize = PointsToPageUnits(grfx, font);
  
         path.AddString(strText, font.FontFamily, (int) font.Style,
                        fFontSize, new PointF(0, 0), new StringFormat());
  
         RectangleF rectf = path.GetBounds();
  
         path.Transform(new Matrix(1, 0, 0, 1, 
                                   -(rectf.Left + rectf.Right) / 2,
                                   -(rectf.Top + rectf.Bottom) / 2));
         rectf = path.GetBounds();
         PointF[] aptf = path.PathPoints;
  
         for (int i = 0; i < aptf.Length; i++)
              aptf[i].Y *= 2 * (rectf.Width - Math.Abs(aptf[i].X)) / 
                                                                rectf.Width; 
         path = new GraphicsPath(aptf, path.PathTypes);
  
         grfx.TranslateTransform(cx / 2, cy / 2);
         grfx.FillPath(new SolidBrush(clr), path);
                                           
    }
    public float GetAscent(Graphics grfx, Font font)
    {
         return font.GetHeight(grfx) * 
                   font.FontFamily.GetCellAscent(font.Style) /
                        font.FontFamily.GetLineSpacing(font.Style);
    }
    public float GetDescent(Graphics grfx, Font font)
    {
         return font.GetHeight(grfx) * 
                   font.FontFamily.GetCellDescent(font.Style) /
                        font.FontFamily.GetLineSpacing(font.Style);
    }
    public float PointsToPageUnits(Graphics grfx, Font font)
    {
         float fFontSize;
  
         if (grfx.PageUnit == GraphicsUnit.Display)
              fFontSize = 100 * font.SizeInPoints / 72;
         else
              fFontSize = grfx.DpiX * font.SizeInPoints / 72;
  
         return fFontSize;
    }

}

 </source>


new GraphicsPath()

<source lang="csharp"> using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form{

 private System.ruponentModel.Container components = null;
 public Form1()
 {
   InitializeComponent();
 }
 protected override void Dispose( bool disposing )
 {
   if( disposing )
   {
     if (components != null) 
     {
       components.Dispose();
     }
   }
   base.Dispose( disposing );
 }
 #region Windows Form Designer generated code
 private void InitializeComponent()
 {
     this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);
     this.ClientSize = new System.Drawing.Size(472, 352);
     this.Name = "Form1";
     this.Text = "Shaped Form Demo";
     this.Load += new System.EventHandler(this.Form1_Load);
   }
 #endregion
 static void Main() 
 {
   Application.Run(new Form1());
 }
   private void Form1_Load(object sender, System.EventArgs e)
   {
     BackColor = Color.Red;
     GraphicsPath path = new GraphicsPath();
     path.AddString("www.nfex.ru",Font.FontFamily, 1, 75, new Point(0, 0), new StringFormat());
     Region = new Region(path);
   }

}


 </source>