using System;
using System.Collections;
using System.Drawing;
using System.Windows.Forms;
using IChess;
namespace ChessItem
{
/// <summary>
/// ChessItemBase 的摘要说明。
/// </summary>
public class ChessItemBase : System.Windows.Forms.Label,IChess.IChessItem
{
public ChessItemBase()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
#region override
protected override void OnClick(EventArgs e)
{
if(!IsChecked)
{
IsChecked = true;
this.BorderStyle = BorderStyle.FixedSingle;
}
base.OnClick (e);
}
public override ContentAlignment TextAlign
{
get
{
return ContentAlignment.MiddleCenter;
}
set
{
}
}
public override Color BackColor
{
get
{
// SetStyle(ControlStyles.SupportsTransparentBackColor,true);
return Color.Transparent;
}
set
{}
}
public override Font Font
{
get
{
return new Font("隶书",20);
}
set
{
}
}
private Image _bmp;
public override Image BackgroundImage
{
get
{
if(_bmp==null)
{
Bitmap bmp = new Bitmap(50,50);
Graphics g = Graphics.FromImage( bmp );
Brush brush = new SolidBrush(Color.Tomato);
g.FillEllipse(brush,new Rectangle(new Point(0,0),new Size(50,50)));;
g.Flush();
g.Dispose();
_bmp= bmp;
}
return _bmp;
}
set
{
}
}
#endregion
/// <summary>
/// 将负数转换为正整数
/// </summary>
/// <param name="values"></param>
/// <returns></returns>
public virtual int GetInt32(int values)
{
if(values<0) return 0-values;
return values;
}
/// <summary>
/// 限制坐标点移动
/// </summary>
/// <param name="ChessX">棋盘上X坐标</param>
/// <param name="ChessY">棋盘上Y坐标</param>
/// <returns></returns>
public virtual bool LimitPoint(int ChessX,int ChessY)
{
Form form = (Form)this.Parent;//获取此控件的父系，即form
int count = 0;
if(GridX == ChessX && GridY > ChessY)
GetChildOnPoint(form,ChessX,ChessY,GridX,GridY,out count);
else if(GridX == ChessX && GridY < ChessY)
GetChildOnPoint(form,GridX,GridY,ChessX,ChessY,out count);
else if(GridX > ChessX && GridY == ChessY)
GetChildOnPoint(form,ChessX,ChessY,GridX,GridY,out count);
else if(GridX < ChessX && GridY == ChessY)
GetChildOnPoint(form,GridX,GridY,ChessX,ChessY,out count);
if(count>0) return false;//如果此条线上还有其他棋子，将不能移动
if(ChessX>Definition.ChessGirdX || ChessX<0) return false;
if(ChessY>Definition.ChessGirdY || ChessY<0) return false;
return true;
}
/// <summary>
/// 获取处于开始结束点之间的棋子，如果含有多个棋子则不返回，输出从开始到结束位置共有多少个棋子
/// </summary>
/// <param name="form">棋盘</param>
/// <param name="startX">开始X</param>
/// <param name="startY">开始Y</param>
/// <param name="endX">结束X</param>
/// <param name="endY">结束Y</param>
/// <param name="count">返回在此条线上有多少个棋子</param>
/// <returns></returns>
protected IChessItem GetChildOnPoint(Form form,int startX,int startY,int endX,int endY,out int count)
{
count = 0;
if((startX != endX) &&(startY!=endY)) return null;
ArrayList al = new ArrayList();
for(int i=0;i<form.Controls.Count;i++)
{
if(form.Controls[i] is IChessItem)
{
IChessItem ic = (IChessItem)form.Controls[i];
if(startX == endX && startX == ic.GridX)
{
if(ic.GridY > startY && ic.GridY<endY)
al.Add(ic);
}
else if(startY==endY &&startY== ic.GridY)
{
if(ic.GridX > startX && ic.GridX<endX)
al.Add(ic);
}
}
}
count = al.Count;
if(al.Count == 1)return (IChessItem)al[0];
return null;
}
protected bool HasChessItemOnPoint(int ChessX,int ChessY)
{
Form form = (Form)this.Parent;
for(int i=0;i<form.Controls.Count;i++)
{
if(form.Controls[i] is IChessItem)
{
IChessItem ic = (IChessItem)form.Controls[i];
if(ic.GridX == ChessX && ic.GridY == ChessY) return true;
}
}
return false;
}
#region IChessItem 成员实现
private int _gridX;
public virtual int
