в 15:31, 26 мая 2010

2010-05-26T15:31:35Z

Admin: 1 версия

2010-05-26T12:11:27Z

1 версия

Новая страница

==new Region(GraphicsPath gp)==

<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 an open figure
gp.AddLine(10, 10, 10, 50);
gp.AddLine(10, 50, 50, 50);
// Start a new figure
gp.StartFigure();
gp.AddLine(60, 10, 60, 50);
gp.AddLine(60, 50, 100, 50);
gp.CloseFigure();
gp.AddEllipse(new Rectangle(110, 10, 40, 40));
// Create a Region whose boundary is the above GraphicsPath
Region reg = new Region(gp);
g.FillRegion(Brushes.Green, reg);
reg.Dispose();
gp.Dispose();
}
private void Form1_Resize(object sender, System.EventArgs e)
{
Invalidate();
}
}

</source>

==Region.Exclude==

<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);
Region r = new Region(new Rectangle(30, 30, 30, 60));
r.Exclude(new Rectangle(40, 40, 10, 10));
g.FillRegion(Brushes.Orange, r);
r.Dispose();
}
private void Form1_Resize(object sender, System.EventArgs e)
{
Invalidate();
}
}

</source>

==Region.IsEmpty==

<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);
Region r = new Region(new Rectangle(30, 30, 30, 60));
r.Exclude(new Rectangle(40, 40, 10, 10));
g.FillRegion(Brushes.Orange, r);
Console.WriteLine(r.IsEmpty(g) ? " - is empty"
: " - is non-empty");
r.Dispose();
}
private void Form1_Resize(object sender, System.EventArgs e)
{
Invalidate();
}
}

</source>

==Region.IsInfinite==

<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);
Region r = new Region(new Rectangle(30, 30, 30, 60));
r.Exclude(new Rectangle(40, 40, 10, 10));
g.FillRegion(Brushes.Orange, r);
Console.WriteLine(r.IsInfinite(g) ? " - is infinite"
: " - is finite");
r.Dispose();
}
private void Form1_Resize(object sender, System.EventArgs e)
{
Invalidate();
}
}

</source>

==Region.IsVisible==

<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);
Region r = new Region(new Rectangle(30, 30, 30, 60));
r.Exclude(new Rectangle(40, 40, 10, 10));
g.FillRegion(Brushes.Orange, r);
PointF pf = new PointF(35.0f, 30.0f);
Console.WriteLine((r.IsVisible(pf) ? " - includes"
: " - excludes")
+ " the point (35.0, 50.0)");
r.Dispose();
}
private void Form1_Resize(object sender, System.EventArgs e)
{
Invalidate();
}
}

</source>

==Region.Union==

<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);
Region reg = new Region();
reg.MakeEmpty();
GraphicsPath gp = new GraphicsPath();
gp.AddEllipse(10, 10, 50, 50);
reg.Union(gp);
gp.Reset();
gp.AddLine(40, 40, 70, 10);
gp.AddLine(70, 10, 140, 140);
gp.CloseFigure();
reg.Union(gp);
reg.Union(new Rectangle(40, 50, 60, 60));
// Set the clipping region
g.SetClip(reg, CombineMode.Replace);
g.FillRectangle(Brushes.Green, this.ClientRectangle);
gp.Dispose();
reg.Dispose();
}
private void Form1_Resize(object sender, System.EventArgs e)
{
Invalidate();
}
}

</source>

← Предыдущая	Версия 15:31, 26 мая 2010
(нет различий)

Csharp/C Sharp by API/System.Drawing/Region - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия