A Flyweight mode without method inheritance

Using System;
Using System. Collections. Generic;
Using System. Linq;
Using System. Web;
Using System. Web. UI;
Using System. Web. UI. WebControls;

Namespace Flyweight
{
Public partial class _ Default: System. Web. UI. Page
{
Protected void Page_Load (object sender, EventArgs e)
{
String document = "AAZZBBZBAAZZBBZBAAZZBBZB ";

Char [] chars = document. ToCharArray ();
Int charsCount = 0;

CharacterFactory factory = new CharacterFactory ();

Foreach (char c in chars)

{

CharsCount ++;

Character character = factory. GetCharacter (c );

Response. Write (character. Display (charsCount, "# 0000FF "));

}
Response. Write ("Total" + charsCount + "character ");

}

}

}

Class CharacterFactory
{

Private Dictionary <char, Character> _ characters =

New Dictionary <char, Character> ();

 

Public Character GetCharacter (char key)
{

// Uses "lazy initialization"

Character character = null;

If (_ characters. ContainsKey (key ))
{

Character = _ characters [key];

}

Else
{

Switch (key)
{

Case 'A': character = new characloud (); break;

Case 'B': character = new CharacterB (); break;

//...

Case 'Z': character = new CharacterZ (); break;

}

_ Characters. Add (key, character );

}

Return character;

}

}

 

/// <Summary>

/// The 'flywith' abstract class

/// </Summary>

Abstract class Character
{

Protected char symbol;

Protected int width;

Protected int height;

Protected string color;

Protected int descent;

Protected int fontsize;

 

Public string Display (int fontsize, string color)
{

This. fontsize = fontsize;
This. color = color;

Return "<font size =" + fontsize + "COLOR =" + color + ">" + this. symbol + "</FONT> ";
}
}

 

/// <Summary>

/// A' ConcreteFlyweight 'class

/// </Summary>

Class characloud: Character
{

// Constructor

Public characloud ()
{

This. symbol = 'a ';

}

// Public override string Display (int fontsize, string color)
//{

// This. fontsize = fontsize;
// This. color = color;

// Return "<font size =" + fontsize + "COLOR =" + color + ">" + this. symbol + "</FONT> ";
//}

}

 

/// <Summary>

/// A' ConcreteFlyweight 'class

/// </Summary>

Class CharacterB: Character
{

// Constructor

Public CharacterB ()
{

This. symbol = 'B ';

}

}

Class CharacterZ: Character
{

// Constructor

Public CharacterZ ()
{

This. symbol = 'Z ';

}

 

}