/// <param name="g">绘制图面.</param>
/// <param name="item">要绘制的GroupCellItem</param>
/// <param name="rect">绘制的区域.只提供起点(x,y),具体大小可以在重载时自行确定.</param>
/// <returns>下一个GroupItem的起点区域.</returns>
protected virtual Rectangle DrawCellItem(Graphics g, GroupCellItem item, Rectangle rect)
{
//绘制Item
rect.Height = _CellItemHeight;
SolidBrush sb;
if (item.Equals(_MouseOnCellItem))
{
sb = new SolidBrush(MouseOnCellItemColor);
}
else
{
sb = new SolidBrush(BackColor);
}
//FillItem(g, rect, sb);
g.FillRectangle(sb, rect);
StringFormat sf = new StringFormat()
{
LineAlignment = StringAlignment.Center,
Alignment = StringAlignment.Near,
FormatFlags = StringFormatFlags.NoClip,
};
sf.SetTabStops(0.0F, new float[] { 20.0F });
sb.Color = Color.Black;
g.DrawString(item.Text, Font, sb, rect, sf);
item.Bounds = rect;
return(GetNextBounds(rect));
}
/// <summary>
/// 清理GroupCellItem区域.
/// </summary>
private void ClearCellItemBounds()
{
if (_MouseOnCellItem != null)
{
Rectangle rect = _MouseOnCellItem.Bounds;
rect.Y -= VerticalScroll.Value;
rect.X = 0;
this.Invalidate(rect);
_MouseOnCellItem = null;
}
}
/// <summary>
/// 鼠标点击处理.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseClick(MouseEventArgs e)
{
Debug.WriteLine("VS {0} Height {2} sum{3} Mouse {1} ".FormatWith(VerticalScroll.Value, e.Y, this.Height, VerticalScroll.Value + this.Height));
Point Pos = e.Location;
int index = this.VerticalScroll.Value;
Pos.X += this.HorizontalScroll.Value;
Pos.Y += this.VerticalScroll.Value;
if (e.Button == System.Windows.Forms.MouseButtons.Left || e.Button == System.Windows.Forms.MouseButtons.Right)
{
Debug.WriteLine("鼠标点击位置:{0}".FormatWith(Pos));
foreach (var item in Items)
{
if (item.Bounds.Contains(Pos))
{
_MouseSelectCellItem = null;
item.IsOpen = !item.IsOpen;
OnItemClick(new DataEventArgs <GroupItem>(item));
//this.Invalidate();
Debug.WriteLine("Item 位置{0}".FormatWith(item.Bounds));
return;
}
else
{
if (item.IsOpen)
{
foreach (var sitem in item.SubItems)
{
if (sitem.Bounds.Contains(Pos))
{
_MouseSelectCellItem = null;
sitem.IsOpen = !sitem.IsOpen;
//this.Invalidate();
OnSubItemClick(new DataEventArgs <GroupSubItem>(sitem));
Debug.WriteLine("{2} {1} 位置{0}".FormatWith(sitem.Bounds, sitem.Text, sitem.Father.Text));
return;
}
else
{
if (sitem.IsOpen)
{
foreach (var citem in sitem.SubItems)
{
if (!citem.Equals(_MouseSelectCellItem) && citem.Bounds.Contains(Pos))
{
_MouseSelectCellItem = citem;
this.Invalidate();
if (e.Button == System.Windows.Forms.MouseButtons.Left)
{
OnCellItemClick(new DataEventArgs <GroupCellItem>(citem));
}
else
{
OnCellItemDoubleClick(new DataEventArgs <GroupCellItem>(citem));
}
Debug.WriteLine("{1} -{2} -{3}- Cell 位置{0}".FormatWith(citem.Bounds, item.Text, sitem.Text, citem.Text));
return;
}
}
}
}
}
}
}
}
//Debug.WriteLine("没有找到任何项");
//foreach (var item in Items)
//{
// Debug.WriteLine(item.Bounds);
//}
}
base.OnMouseClick(e);
}
/// <summary>
/// 鼠标移动处理.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
_MounsePos = e.Location;
int index = this.VerticalScroll.Value;
_MounsePos.X += this.HorizontalScroll.Value;
_MounsePos.Y += this.VerticalScroll.Value;
Rectangle rect;
foreach (var item in _Items)
{
if (item.Bounds.Contains(_MounsePos))
{
if (item.Equals(_MouseOnItem))//子项与上一次是相等的.
{
Debug.WriteLine("Item 与上次一样 ");
return;
}
else
{
ClearBounds();
_MouseOnItem = item;
rect = item.Bounds;
rect.Y -= index;
this.Invalidate(rect);
Debug.WriteLine("被选中的是Item {0}".FormatWith(item.Bounds));
return;
}
}
else
{
if (item.IsOpen)
{
foreach (var sitem in item.SubItems)
{
if (sitem.Bounds.Contains(_MounsePos))
{
if (sitem.Equals(_MouseOnSubItem))
{
Debug.WriteLine("SubItem 与上次一样 ");
return;
}
else
{
ClearBounds();
_MouseOnSubItem = sitem;
rect = sitem.Bounds;
rect.Y -= index;
this.Invalidate(rect);
Debug.WriteLine("被选中的是SubItem {0}".FormatWith(sitem.Bounds));
return;
}
}
else
{
if (sitem.IsOpen)
{
foreach (var citem in sitem.SubItems)
{
if (citem.Bounds.Contains(_MounsePos))
{
ClearBounds();
_MouseOnCellItem = citem;
rect = citem.Bounds;
rect.Y -= index;
OnMouseOnCellItem(new DataEventArgs <GroupCellItem>(citem));
this.Invalidate(rect);
Debug.WriteLine("被选中的是CellItem {0}".FormatWith(citem.Bounds));
return;
}
}
}
}
}
}
}
}
ClearBounds();
Debug.WriteLine("没有找到任何项");
foreach (var item in Items)
{
Debug.WriteLine(item.Bounds);
}
}