public int catchPointIndex = -1; //捕捉热点的索引
public override void mouseDown(object sender, MouseEventArgs e, DRAWForm drawForm)
{
catchPointIndex = -1; //重置捕捉热点的索引
if (this.getOperShape() != null)
{
this.getOperShape().setUnSelected();
} //清除前操作对象中选中的状态
ArrayList allShapes = this.getRefDRAWPanel().getCurrentShapes(); //得到画板上的所有图形
int catchPoint = -1;
int i = 0;
for (; i < allShapes.Count; i++) //对每个图形进行捕捉测试
{
/*捕捉集合中的一个图形*/
catchPoint = ((BaseShape)allShapes[i]).catchShapPoint(this.getOldDragPoint());
if (catchPoint > -1)
{
break;
} //捕获到后，跳出循环
}
if (catchPoint > -1)
{
catchPointIndex = catchPoint; //捕获到后，将临时的热点设置到工具属性中
((BaseShape)allShapes[i]).setSelected(); //设置捕捉到的图形为选中状态
this.setOperShape(((BaseShape)allShapes[i])); //选中的图形设定到本类的操作图形的状态中
}
this.getRefDRAWPanel().Refresh(); //刷新画板
}
public void superMouseDown(object sender, MouseEventArgs e, DRAWForm drawForm) //公共鼠标按下
{
this.setDownPoint(new Point(e.X, e.Y)); //鼠标按下点的设定
this.setOldDragPoint(new Point(e.X, e.Y)); //旧的鼠标拖动点的设定
this.setNewDragPoint(new Point(e.X, e.Y)); //新的鼠标拖动点的设定
this.mouseDown(sender, e, drawForm); //鼠标按下的处理
}
public override void mouseDown(object sender, MouseEventArgs e, DRAWForm drawForm)
{
this.setOperShape(new EllipseShape());
this.getOperShape().setP1(this.getDownPoint());
this.getOperShape().penColor = drawForm.clr;
this.getOperShape().penwidth = drawForm.lineWidth;
this.getRefDRAWPanel().getCurrentShapes().Add(this.getOperShape());
}
public override void mouseDown(object sender, MouseEventArgs e, DRAWForm drawForm)
{
this.setOperShape(new LineShape()); //新建一个线型对象
this.getOperShape().setP1(this.getDownPoint()); //设置起始点
this.getOperShape().penColor = drawForm.clr; //设置颜色
this.getOperShape().penwidth = drawForm.lineWidth; //设置线条宽度
/*在当前图形集合中添加这条图形*/
this.getRefDRAWPanel().getCurrentShapes().Add(this.getOperShape());
}
public void setRefDRAWPanel(DRAWForm refDRAWPanel) //关联画板
{
this.refDRAWPanel = refDRAWPanel;
}
/*鼠标按下的处理*/ public abstract void mouseDown(object sender, MouseEventArgs e, DRAWForm drawForm);
