/// <summary>
/// 编辑图元
/// </summary>
public void EditDataElement()
{
if (selectedGraphElement != null) // 有选中的图元
{
if (selectedGraphElement.Enable) // 选中的图元可以编辑
{
if (selectedGraphElement is RemarkGraphElement) // 编辑注释
{
FlowChartEditRemarkCommand cmd = new FlowChartEditRemarkCommand(this, "编辑元注释");
InitFirstCommand(cmd);
if (cmd.Execute((selectedGraphElement as RemarkGraphElement).Owner)) // 命令执行成功
{
AdjustCommandList(cmd);
}
}
else // 编辑图元
{
FlowChartEditCommand cmd = new FlowChartEditCommand(this, "编辑图元");
InitFirstCommand(cmd);
if (cmd.Execute(selectedGraphElement)) // 命令执行成功
{
AdjustCommandList(cmd);
regionManager.ChangeRegion(selectedGraphElement);
}
}
}
else
{
MessageBox.Show("当前图元数据无效，请检查是否连接正确！", "图元编辑", MessageBoxButtons.OK,
MessageBoxIcon.Information);
}
}
}
/// <summary>
/// 自动连接图元
/// </summary>
/// <param name="previousContainer">连出的插槽容器</param>
/// <param name="currentContainer">连入的插槽容器</param>
private void ConnectGraphElement(SlotContainer previousContainer, SlotContainer currentContainer)
{
SlotGraphElement outSlot = previousContainer.GetOutSlot();
SlotGraphElement inSlot = currentContainer.GetInSlot();
if(outSlot != null && inSlot != null) // 可能有些结点不能分配出新插槽
{
FlowChartCreateAndConnectLineCommand cmd = new FlowChartCreateAndConnectLineCommand(this, "创建并连接图元");
InitFirstCommand(cmd);
if (cmd.Execute(new object[] { outSlot, inSlot })) // 命令执行成功
{
AdjustCommandList(cmd);
ConnectorContainer line = selectedGraphElement as ConnectorContainer;
regionManager.AddToRegion(line); // 调整图元所在区域
// 自动调整连接线
AdjustLine(line, currentContainer);
if (previousContainer is ConditionGraphElement) // 编辑条件结点连出的连接线
{
FlowChartEditCommand editCommand = new FlowChartEditCommand(this, "编辑图元");
if (editCommand.Execute(line))
{
AdjustCommandList(editCommand);
}
}
}
}
autoConnect = false;
}
/// <summary>
/// 编辑图元
/// </summary>
/// <param name="graphElement">当前图元</param>
public void EditDataElement(GraphElement graphElement)
{
FlowChartEditCommand cmd = new FlowChartEditCommand(this, "编辑数据元");
InitFirstCommand(cmd);
if (cmd.Execute(graphElement)) // 命令执行成功
{
AdjustCommandList(cmd);
regionManager.ChangeRegion(selectedGraphElement);
}
}
/// <summary>
/// 创建图元
/// </summary>
public void CreateGraphElement()
{
Point p = canvas.AbbreviatGraphElement.Location;
FlowChartCreateCommand cmd = new FlowChartCreateCommand(this, "新建图元");
InitFirstCommand(cmd);
if (cmd.Execute(new object[] { p, canvas.AbbreviatGraphElement.TypeString })) // 命令执行成功
{
AdjustCommandList(cmd);
// 自动调整连接线
AdjustLine(selectedGraphElement as SlotContainer);
GraphElement graphElement = selectedGraphElement;
if (autoConnect)
{
ConnectGraphElement(lastConnectGraphElement as SlotContainer, selectedGraphElement as SlotContainer);
}
if (lastSelectedGraphElement != null) // 将上一个被选中的图元置为非选中状态
{
if (!selectedGraphElementList.Contains(lastSelectedGraphElement)) // 在多选状态需要检查上一个被选中的图元是否在多选容器中
{
lastSelectedGraphElement.Selected = false;
}
}
SelectGraphElement(graphElement, p); // 选中新建的图元
// 编辑新建的图元
FlowChartEditCommand editCommand = new FlowChartEditCommand(this, "编辑图元");
InitFirstCommand(editCommand);
if (editCommand.Execute(graphElement)) // 命令执行成功
{
AdjustCommandList(editCommand);
}
regionManager.AddToRegion(graphElement); // 调整图元所在区域
}
}
