//用梯度路径根据以上属性画矩形
public void Show(System.IntPtr WinHandle)
{
Graphics GameGraphics;
GraphicsPath graphPath;
PathGradientBrush brushSquare;
Color[] surroundColor;
Rectangle rectSquare;
//获取Graphics对象
GameGraphics = Graphics.FromHwnd(WinHandle);
//创建一个由一个矩形构成的路径
graphPath = new GraphicsPath();
rectSquare = new Rectangle(Location.X, Location.Y, size.Width, size.Height);
graphPath.AddRectangle(rectSquare);
//创建用于画矩形的路径画刷
brushSquare = new PathGradientBrush(graphPath);
brushSquare.CenterColor = ForeColor;
surroundColor = new Color[] { BackColor };
brushSquare.SurroundColors = surroundColor;
//根据以上设置画出矩形路径
GameGraphics.FillPath(brushSquare, graphPath);
SolidBrush BackColorBrush = new SolidBrush(GameField.BackColor);
GameGraphics.FillRectangle(BackColorBrush, new Rectangle(Location, new Size(GameField.SquareRoundCorner, GameField.SquareRoundCorner)));
GameGraphics.FillRectangle(BackColorBrush, new Rectangle(Location.X + size.Width - GameField.SquareRoundCorner, Location.Y, GameField.SquareRoundCorner, GameField.SquareRoundCorner));
GameGraphics.FillRectangle(BackColorBrush, new Rectangle(Location.X, Location.Y + size.Height - GameField.SquareRoundCorner, GameField.SquareRoundCorner, GameField.SquareRoundCorner));
GameGraphics.FillRectangle(BackColorBrush, new Rectangle(Location.X + size.Width - GameField.SquareRoundCorner, Location.Y + size.Height - GameField.SquareRoundCorner, GameField.SquareRoundCorner, GameField.SquareRoundCorner));
}
public void Hide(System.IntPtr winHandle)
{
Graphics GameGraphics;
Rectangle rectSquare;
// Gets the Graphics object of the background picture
GameGraphics = Graphics.FromHwnd(winHandle);
// Since we are working in a solid background, we can just draw a solid rectangle in order to "hide" the current square
rectSquare = new Rectangle(Location.X, Location.Y, Size.Width, Size.Height);
GameGraphics.FillRectangle(new SolidBrush(GameField.BackColor), rectSquare);
}
//消去矩形
public void Hide(System.IntPtr WinHandle)
{
Graphics GameGraphics;
Rectangle rectSquare;
//获取Graphics对象
GameGraphics = Graphics.FromHwnd(WinHandle);
//消去图形
rectSquare = new Rectangle(Location.X, Location.Y, size.Width, size.Height);
GameGraphics.FillRectangle(new SolidBrush(GameField.BackColor), rectSquare);
}