protected GraphSetting graphSetting; // 绘图参数配置对象
/// <summary>
/// 构造函数
/// </summary>
/// <param name="line">连接线控制点所属的连接线</param>
/// <param name="location">连接点的位置</param>
/// <param name="size">连接线的大小</param>
public ConnectorGraphElement(ConnectorContainer line, Point location, Size size)
: base(location)
{
this.line = line;
this.location = location;
this.elementSize = size;
}
/// <summary>
/// 获取与连接线绑定的出口插槽的索引
/// </summary>
/// <param name="line">连接线</param>
/// <returns>索引</returns>
public int GetBindedOutSlotIndex(ConnectorContainer line)
{
int index = -1;
SlotGraphElement slot = GetBindedOutSlot(line);
if (slot != null)
{
index = slot.Priority;
}
return index;
}
/// <summary>
/// 获取与连接线绑定的出口插槽
/// </summary>
/// <param name="line">连接线</param>
/// <returns>出口插槽</returns>
public SlotGraphElement GetBindedOutSlot(ConnectorContainer line)
{
SlotGraphElement slotGraphElement = null;
foreach (SlotGraphElement slot in outSlotList)
{
if (slot.Binded && slot.BindingConnector.Line == line)
{
slotGraphElement = slot;
break;
}
}
return slotGraphElement;
}
/// <summary>
/// 绑定连出的连接线
/// </summary>
/// <param name="line">连接线</param>
/// <param name="index">索引</param>
public virtual void BindOutLine(ConnectorContainer line, int index)
{
if (index >= 0 && index < outSlotCount)
{
SlotGraphElement slot = outSlotList[index];
if (!slot.Binded)
{
slot.Bind(line.TailConnector);
}
}
}
/// <summary>
/// 绑定连出的连接线
/// </summary>
/// <param name="line">连接线</param>
public virtual void BindOutLine(ConnectorContainer line)
{
SlotGraphElement slot = GetOutSlot();
if (slot != null)
{
slot.Bind(line.TailConnector);
}
}
/// <summary>
/// 绑定连入的连接线
/// </summary>
/// <param name="line">连接线</param>
/// <param name="index">索引</param>
public virtual void BindInLine(ConnectorContainer line, int index)
{
if (index >= 0 && index < inSlotCount)
{
SlotGraphElement slot = inSlotList[index];
if (!slot.Binded)
{
slot.Bind(line.HeadConnector);
}
}
}
/// <summary>
/// 绑定连入的连接线
/// </summary>
/// <param name="line">连接线</param>
public virtual void BindInLine(ConnectorContainer line)
{
SlotGraphElement slot = GetInSlot();
if (slot != null)
{
slot.Bind(line.HeadConnector);
}
}
/// <summary>
/// 添加连接线到区域
/// </summary>
/// <param name="line">添加连接线到区域</param>
public void Add(ConnectorContainer line)
{
if (!connectorContainers.Contains(line))
{
connectorContainers.Add(line);
}
}
/// <summary>
/// 检查是否连接有事件结点
/// </summary>
/// <param name="line">当前连接线</param>
/// <returns>是否连接有事件结点</returns>
public bool IsConnectEventNode(ConnectorContainer line)
{
bool result = false;
if (line.RequireEvent) // 需要入口事件
{
if (GetEventList(line).Count > 0)
{
result = true;
}
}
else
{
result = true;
}
return result;
}
/// <summary>
/// 获取连接线对应的事件结点数据链表
/// </summary>
/// <param name="connectorContainer">当前连接线</param>
/// <returns>连接线对应的事件结点数据链表</returns>
public List<DataElement> GetEventList(ConnectorContainer line)
{
List<DataElement> list = new List<DataElement>();
SlotContainer slotContainer = line.InSlotContainer;
if(slotContainer != null)
{
List<SlotContainer> slotContainerList = GetAllPreviousSlotContainers(slotContainer);
foreach (SlotContainer s in slotContainerList)
{
if (s is EventGraphElement)
{
DataElement dataElement = graphTable[s] as DataElement;
if (dataElement != null)
{
list.Add(dataElement);
}
}
}
}
return list;
}
/// <summary>
/// 检查区域中是否包含当前连接线
/// </summary>
/// <param name="line">当前连接线</param>
/// <returns>区域中是否包含当前连接线</returns>
public bool Contains(ConnectorContainer line)
{
bool result = connectorContainers.Contains(line);
return result;
}
/// <summary>
/// 删除区域中的连接线
/// </summary>
/// <param name="line">当前连接线</param>
public void Remove(ConnectorContainer line)
{
connectorContainers.Remove(line);
}
/// <summary>
/// 更新连接线所在的区域
/// </summary>
/// <param name="line">当前连接线</param>
private void ChangeRegion(ConnectorContainer line)
{
bool added = false; // 是否已经添加到区域中
foreach (RegionData regionData in regionDataList)
{
if (regionData.Contains(line) && !regionData.IsInRegion(line.InvalidRectangle))
{
regionData.Remove(line);
}
if (!regionData.Contains(line) && regionData.IsInRegion(line.InvalidRectangle))
{
regionData.Add(line);
added = true;
}
}
if (!added)
{
backupRegionData.Add(line);
}
}
/// <summary>
/// 将连接线从区域中删除
/// </summary>
/// <param name="line">当前连接线</param>
private void DeleteFromRegion(ConnectorContainer line)
{
foreach (RegionData regionData in regionDataList)
{
regionData.Remove(line);
}
backupRegionData.Remove(line);
}
/// <summary>
/// 将连接线加入区域中
/// </summary>
/// <param name="line">当前连接线</param>
private void AddToRegion(ConnectorContainer line)
{
bool added = false;
foreach (RegionData regionData in regionDataList)
{
if (regionData.IsInRegion(line.InvalidRectangle))
{
regionData.Add(line);
added = true;
}
}
if (!added)
{
backupRegionData.Add(line);
}
}
/// <summary>
/// 调整连接线
/// </summary>
/// <param name="line">当前连接线</param>
/// <param name="slotContainer">相关的插槽容器</param>
private void AdjustLine(ConnectorContainer line , SlotContainer slotContainer)
{
Rectangle adjustRectangle = line.GetAdjustRectangle(background.CanvasSize, background.GridSize.Width);
List<SlotContainer> totalSlotContainerList = regionManager.GetSlotContainerList(adjustRectangle);
List<ConnectorContainer> totalLineList = regionManager.GetConnectorContainerList(adjustRectangle);
line.AdjustLine(slotContainer, totalSlotContainerList, totalLineList, background.GridSize.Width, background.BaseSize, regionManager.CanvasGridBoard);
line.AdjustRectangle();
}
/// <summary>
/// 复制图元
/// </summary>
/// <returns>复制的图元</returns>
public virtual ConnectorContainer Clone()
{
ConnectorContainer newLine = new ConnectorContainer(tailConnector.Location, headConnector.Location);
newLine.Text = text;
newLine.DisplayText = displayText;
newLine.TooltipText = tooltipText;
newLine.ShowText = showText;
newLine.ShowID = showID;
newLine.Init();
newLine.Refresh();
newLine.ConnectorCount = connectorCount;
List<ConnectorGraphElement> list = newLine.GetConnectorList();
for(int i = 0; i < connectorList.Count; i++)
{
list[i].Location = connectorList[i].Location;
}
return newLine;
}
/// <summary>
/// 取消绑定连接线
/// </summary>
/// <param name="line">连接线</param>
public virtual void UnBindLine(ConnectorContainer line)
{
SlotGraphElement deleteSlot = null;
foreach(SlotGraphElement slot in slotList)
{
if(slot.Binded && ((slot.BindingConnector == line.HeadConnector) || slot.BindingConnector == line.TailConnector))
{
slot.UnBind();
deleteSlot = slot;
break;
}
}
if (deleteSlot != null && deleteSlot.CanDelete) // 插槽可以删除
{
if(deleteSlot.IsInSlot || outSlotCount > 1)
{
RemoveSlot(deleteSlot);
}
}
}