/*?
?*?Segmented?led?displayer?Origionaly?developed?by?Liu?Xia?-?lxconan@gmail.com
?*?Feel?free?to?use?this?control?in?your?application?or?to?improve?it?anyway.
?*?I?will?be?very?glad?if?you?can?send?me?a?copy?if?you?improve?it.
?*?
?*?[2007-07-18]
?*?Performance?improvement:?DrawSingleCharWithFadedBk（...）?method?added?to?
?*?prevent?drawing?faded?background?character（‘8‘）?every?time.
?*?
?*?[2007-07-18]
?*?Performance?improvement:?Using?cached?path?to?prevent?calculating?paths?in
?*?painting?action.
?*?
?*?[2008-04-30]
?*?Add?Smooth?drawing?and?Italic?text?support.
?*?
?*?[2008-04-30]
?*?Bug?fixed?when?user?wants?to?draw?regular?rect?bound.
?*?
?*?[2008-05-10]
?*?The?text?on?the?control?can?now?be?copied?to?clipboard.
?*?Bug?fixed?:?the?anti-alias?effect?disappeared?when?the?rect?bound?is?a?
?*?????????????regulare?one
?*/

using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Drawing;
using?System.Data;
using?System.Text;
using?System.Windows.Forms;
using?System.Drawing.Drawing2D;

namespace?LxControl
{
????///?

????///?A?control?that?acts?like?a?LED?displayer
????///?

????public?class?LxLedControl?:?Control?ISupportInitialize
????{
????????#region?Nested?Types
????????///?

????????///?Specify?how?the?text?or?value?is?aligned.
????????///?

????????public?enum?Alignment
????????{
????????????///?

????????????///?The?text?or?value?will?align?on?the?left?side?of?the?control.
????????????///?

????????????Left?=?0
????????????///?

????????????///?The?text?or?value?will?align?on?the?right?side?of?the?control.
????????????///?

????????????Right?=?1
????????}
????????#endregion

????????#region?Constructor
????????///?

????????///?Construct?one?LxLedControl?instance.
????????///?

????????public?LxLedControl（）
????????{
????????????//?double?buffered
????????????this.Setstyle（Controlstyles.OptimizedDoubleBuffer?true）;
????????????//?support?transplant?background
????????????this.Setstyle（Controlstyles.SupportsTransparentBackColor?true）;
????????????//?default?color
????????????this.ForeColor?=?Color.LightGreen;
????????????this.BackColor?=?Color.Transparent;
????????????//?event?handler
????????????this.Click?+=?new?EventHandler（EvClick）;
????????????this.KeyDown?+=?new?KeyEventHandler（EvKeyDown）;
????????????this.GotFocus?+=?new?EventHandler（EvFocus）;
????????????this.LostFocus?+=?new?EventHandler（EvFocus）;
????????}

????????///?

????????///?Destructor
????????///?

????????///?whether?this?method?is?called?by?Dispose（）
????????protected?override?void?Dispose（bool?disposing）
????????{
????????????DestoryCache（）;
????????????base.Dispose（disposing）;
????????}
????????#endregion

????????#region?Helper?Function
????????///?

????????///?Paint?one?segment.
????????///?