예제 #1
0
        /// <summary>每添加一个圆,就计算一次方向
        /// </summary>
        public void CalAngleAndconnectTheJumpedCircle()
        {
            if (CircleSet == null || CircleSet.Count <= 1)
            {
                return;
            }
            //取出最后一个对象
            PCCircle lastOne = CircleSet.Last();
            //倒数第二个
            PCCircle lastTwo = CircleSet[CircleSet.Count - 2];
            //计算倒数第二个的位置
            nfloat last_1_x = lastOne.Center.X;
            nfloat last_1_y = lastOne.Center.Y;
            nfloat last_2_x = lastTwo.Center.X;
            nfloat last_2_y = lastTwo.Center.Y;

            // 1.计算角度(反正切函数)
            nfloat angle = (nfloat)(Math.Atan2(last_1_y - last_2_y, last_1_x - last_2_x) + Math.PI / 2);

            lastTwo.Angle = angle;

            // 2.处理跳跃连线
            CGPoint  center       = CenterPointWithPointOne(lastOne.Center, lastTwo.Center);
            PCCircle centerCircle = EnumCircleSetToFindWhichSubviewContainTheCenterPoint(center);

            if (centerCircle != null)
            {
                // 把跳过的圆加到数组中,它的位置是倒数第二个
                if (!CircleSet.Contains(centerCircle))
                {
                    CircleSet.Insert(CircleSet.Count - 1, centerCircle);
                }
            }
        }
예제 #2
0
        /// <summary> 给一个点,判断这个点是否被圆包含,如果包含就返回当前圆,如果不包含返回的是NULL
        ///
        /// </summary>
        /// <param name="point">前点</param>
        /// <returns>点所在的圆</returns>
        public PCCircle EnumCircleSetToFindWhichSubviewContainTheCenterPoint(CGPoint point)
        {
            PCCircle centerCircle = null;

            foreach (PCCircle circle in Subviews)
            {
                if (circle.Frame.Contains(point))
                {
                    centerCircle = circle;
                }
            }

            if (centerCircle != null && !CircleSet.Contains(centerCircle))
            {
                // 这个circle的角度和倒数第二个circle的角度一致
                centerCircle.Angle = CircleSet[CircleSet.Count - 2].Angle;
            }
            return(centerCircle); // 注意:NULL,就是当前点不在圆内
        }
예제 #3
0
        public override void TouchesMoved(NSSet touches, UIEvent evt)
        {
            CurrentPoint = new CGPoint(0, 0);
            UITouch touch = (UITouch)touches.AnyObject;
            CGPoint point = touch.LocationInView(this);

            foreach (PCCircle circle in Subviews)
            {
                if (circle.Frame.Contains(point))
                {
                    if (!CircleSet.Contains(circle))
                    {
                        CircleSet.Add(circle);
                        // move过程中的连线(包含跳跃连线的处理)
                        CalAngleAndconnectTheJumpedCircle();
                    }
                }
                else
                {
                    CurrentPoint = point;
                }
            }

            foreach (PCCircle circle in CircleSet)
            {
                circle.State = CircleState.CircleStateSelected;
                // 如果是登录或者验证原手势密码,就改为对应的状态 (加上这句没有三角箭头)
                //if (Type != CircleViewType.CircleViewTypeSetting)
                //{
                //    circle.State = CircleState.CircleStateLastOneSelected;
                //}
            }
            if (CircleSet.Count > 0)
            {
                // 数组中最后一个对象的处理
                CircleSetLastObjectWithState(CircleState.CircleStateLastOneSelected);
                SetNeedsDisplay();
            }
        }