private void Row_OnClick(object sender, EventArgs e)
{
ListRow Row = (ListRow)sender;
int Offset = CalcOffset(Row);
int ScrollIndex = CalcScrollIndex();
if ((ScrollIndex + Offset) >= pListItems.Count)
{
return;
}
Row.BackColor = RowSelectedColor;
pSelectedIndex = ScrollIndex + Offset;
UpdateLayout();
if (SelectedIndexChanged != null)
{
SelectedIndexChanged(this, EventArgs.Empty);
}
if (OnRowClick != null)
{
OnRowClick(this, EventArgs.Empty);
}
}
protected virtual int CalcOffset(ListRow Row)
{
int Offset = (Row.Top + Row.Height) / ListRow.CONTROL_HEIGHT;
if (ListScroller.Value == 0)
{
return(Offset - 1);
}
else
{
return(Offset);
}
}
protected virtual void UpdateLayout()
{
if (!bLayoutUpdating)
{
bLayoutUpdating = true;
MaxVisibleRows = (this.Height / ListRow.CONTROL_HEIGHT) + 2;
if (ListRows.Count < MaxVisibleRows)
{
ListRow NewRow;
//for (int i = 0; i < MaxVisibleRows - ListRows.Count; i ++)
for (int i = 0; i < MaxVisibleRows; i++)
{
NewRow = new ListRow();
NewRow.CmdKeyPressed += new CmdKeyPressedHandler(Row_ArrowPressed);
NewRow.OnClick += new EventHandler(Row_OnClick);
NewRow.OnDoubleClick += new EventHandler(Row_OnDoubleClick);
NewRow.Width = this.Width;
NewRow.Left = 0;
NewRow.BackColor = Color.White;
ElementsPanel.Controls.Add(NewRow);
ListRows.EnqueueBack(NewRow);
}
}
int ScrollIndex = (int)Math.Floor((double)ListScroller.Value / (double)ListRow.CONTROL_HEIGHT);
for (int i = 0; i < ListRows.Count; i++)
{
if ((ScrollIndex + i) >= pListItems.Count)
{
ListRows[i].ListInfo = null;
}
else
{
ListRows[i].ListInfo = pListItems[ScrollIndex + i];
}
ListRows[i].Top = (i * ListRow.CONTROL_HEIGHT) - (ListScroller.Value % ListRow.CONTROL_HEIGHT);
ListRows[i].BackColor = GetRowColor(ScrollIndex + i);
ListRows[i].Font = pFont;
ListRows[i].Visible = true;
ListRows[i].Width = ElementsPanel.Width;
}
bLayoutUpdating = false;
}
}