/// <summary>
/// 双击检查
/// </summary>
/// <param name="item">The item.</param>
/// <param name="mouseLocation">The mouse location.</param>
/// <param name="blnDoExpansion">if set to <c>true</c> [BLN do expansion].</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
private bool CheckDrawRectClick(MindMappingItemEntity item, Point mouseLocation, bool blnDoExpansion = true)
{
if (item == null)
{
return(false);
}
else
{
if (item.DrawRectangle.Contains(mouseLocation))
{
if (blnDoExpansion)
{
item.IsExpansion = !item.IsExpansion;
}
return(true);
}
if (item.Childrens != null && item.Childrens.Length > 0)
{
foreach (var child in item.Childrens)
{
var bln = CheckDrawRectClick(child, mouseLocation, blnDoExpansion);
if (bln)
{
return(bln);
}
}
}
}
return(false);
}
/// <summary>
/// 单击检查
/// </summary>
/// <param name="item">The item.</param>
/// <param name="mouseLocation">The mouse location.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
private bool CheckExpansionClick(MindMappingItemEntity item, Point mouseLocation)
{
if (item == null)
{
return(false);
}
else
{
if (item.DrawRectangle.Contains(mouseLocation))
{
selectEntity = item;
if (ItemClicked != null)
{
ItemClicked(item, null);
}
}
if (item.ExpansionRectangle.Contains(mouseLocation))
{
item.IsExpansion = !item.IsExpansion;
return(true);
}
if (item.Childrens != null && item.Childrens.Length > 0)
{
foreach (var child in item.Childrens)
{
var bln = CheckExpansionClick(child, mouseLocation);
if (bln)
{
return(bln);
}
}
}
}
return(false);
}
/// <summary>
/// 画节点
/// </summary>
/// <param name="item">The item.</param>
/// <param name="g">The g.</param>
private void DrawItem(MindMappingItemEntity item, Graphics g)
{
//节点
var size = g.MeasureString(item.Text, item.Font);
item.DrawRectangle = new RectangleF(item.WorkingRectangle.Left + 2, item.WorkingRectangle.Top + (item.WorkingRectangle.Height - size.Height) / 2 + 2, size.Width + 4, size.Height + 4);
GraphicsPath drawPath = item.DrawRectangle.CreateRoundedRectanglePath(5);
if (item.BackColor.HasValue)
{
g.FillPath(new SolidBrush(item.BackColor.Value), drawPath);
}
else
{
g.FillPath(new SolidBrush(itemBackcolor), drawPath);
}
g.DrawString(item.Text, item.Font, new SolidBrush(item.ForeColor), item.DrawRectangle.Location.X + 2, item.DrawRectangle.Location.Y + 2);
//子节点
if (item.Childrens != null && item.IsExpansion)
{
for (int i = 0; i < item.Childrens.Length; i++)
{
var child = item.Childrens[i];
if (i == 0)
{
child.WorkingRectangle = new RectangleF(item.DrawRectangle.Right + splitWidth, item.WorkingRectangle.Top, item.WorkingRectangle.Width - (item.DrawRectangle.Width + splitWidth), child.AllChildrensMaxShowHeight);
}
else
{
child.WorkingRectangle = new RectangleF(item.DrawRectangle.Right + splitWidth, item.Childrens[i - 1].WorkingRectangle.Bottom, item.WorkingRectangle.Width - (item.DrawRectangle.Width + splitWidth), child.AllChildrensMaxShowHeight);
}
DrawItem(child, g);
}
}
//连线
if (item.ParentItem != null)
{
g.DrawLines(new Pen(new SolidBrush(lineColor), 1), new PointF[]
{
new PointF(item.ParentItem.DrawRectangle.Right, item.ParentItem.DrawRectangle.Top + item.ParentItem.DrawRectangle.Height / 2),
new PointF(item.ParentItem.DrawRectangle.Right + 12, item.ParentItem.DrawRectangle.Top + item.ParentItem.DrawRectangle.Height / 2),
//new PointF(item.ParentItem.DrawRectangle.Right+12,item.DrawRectangle.Top+item.DrawRectangle.Height/2),
new PointF(item.DrawRectangle.Left - 12, item.DrawRectangle.Top + item.DrawRectangle.Height / 2),
new PointF(item.DrawRectangle.Left, item.DrawRectangle.Top + item.DrawRectangle.Height / 2),
});
}
//展开折叠按钮
if (item.Childrens != null && item.Childrens.Length > 0)
{
RectangleF _rect = new RectangleF(item.DrawRectangle.Right + 1, item.DrawRectangle.Top + (item.DrawRectangle.Height - 10) / 2, 10, 10);
item.ExpansionRectangle = _rect;
g.FillEllipse(new SolidBrush(this.BackColor), _rect);
g.DrawEllipse(new Pen(new SolidBrush(Color.Black)), _rect);
g.DrawLine(new Pen(new SolidBrush(lineColor)), _rect.Left + 2, _rect.Y + _rect.Height / 2, _rect.Right - 2, _rect.Y + _rect.Height / 2);
if (!item.IsExpansion)
{
g.DrawLine(new Pen(new SolidBrush(lineColor)), _rect.Left + _rect.Width / 2, _rect.Top + 2, _rect.Left + _rect.Width / 2, _rect.Bottom - 2);
}
}
}