/// <summary>
/// Changes in the columns, items or subitems
/// </summary>
/// <param name="ctType"></param>
/// <param name="column"></param>
/// <param name="item"></param>
/// <param name="subItem"></param>
public ChangedEventArgs(ChangedTypes ctType, GLColumn column, GLItem item, GLSubItem subItem)
{
m_Column = column;
m_Item = item;
m_SubItem = subItem;
m_ctType = ctType;
}
/// <summary>
/// remove an item from the list
/// </summary>
/// <param name="item"></param>
public void Remove(GLItem item)
{
List.Remove(item);
if (ChangedEvent != null)
{
ChangedEvent(this, new ChangedEventArgs(ChangedTypes.ItemCollectionChanged, null, null, null));
}
}
/// <summary>
/// insert an item into the list at specified index
/// </summary>
/// <param name="nIndex"></param>
/// <param name="strItemText"></param>
/// <returns></returns>
public GLItem Insert(int nIndex, string strItemText)
{
GLItem item = new GLItem(Parent); //GLItem item = new GLItem(Parent);
item.SubItems[0].Text = strItemText;
nIndex = Insert(nIndex, item);
return(item);
}
/// <summary>
/// Clears all selection bits in the item structure
///
/// this overload is an optimization to stop a redraw on a re-selection
/// </summary>
public void ClearSelection(GLItem itemIgnore)
{
for (int index = 0; index < List.Count; index++)
{
GLItem citem = this[index];
if (citem != itemIgnore)
{
citem.Selected = false; // changed will generate an invalidation by themselves
}
}
}
/// <summary>
/// Find the index of a specified item
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public int FindItemIndex(GLItem item) // use -1 to have it start from the beginning of the list
{
for (int nIndex = 0; nIndex < Count; nIndex++)
{
if (item == this[nIndex])
{
return(nIndex);
}
}
return(-1); // couldn't find it
}
public bool GLLoad(GLItem item, GLSubItem subItem, GlacialList listctrl)
{
m_item = item;
m_subItem = subItem;
m_Parent = listctrl;
this.Text = subItem.Text;
this.Items.Add("i1");
this.Items.Add("i2");
this.Items.Add("i3");
return(true);
}
/// <summary>
/// Conversion to string
/// </summary>
/// <param name="context"></param>
/// <param name="culture"></param>
/// <param name="value"></param>
/// <param name="destinationType"></param>
/// <returns></returns>
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (destinationType == typeof(InstanceDescriptor) && value is GLItem)
{
GLItem column = (GLItem)value;
ConstructorInfo ci = typeof(GLItem).GetConstructor(new Type[] {});
if (ci != null)
{
return(new InstanceDescriptor(ci, null, false));
}
}
return(base.ConvertTo(context, culture, value, destinationType));
}
private bool CompareItems(GLItem item1, GLItem item2, CompareDirection direction)
{
bool dir = false;
if (direction == CompareDirection.GreaterThan)
{
dir = true;
}
if (this.SortDirection == SortDirections.SortAscending)
{
dir = !dir; // flip it
}
if (!this.NumericCompare)
{
if (dir)
{
return(item1.SubItems[SortColumn].Text.CompareTo(item2.SubItems[SortColumn].Text) < 0);
}
else
{
return(item1.SubItems[SortColumn].Text.CompareTo(item2.SubItems[SortColumn].Text) > 0);
}
}
else
{
try
{
double n1 = Double.Parse(item1.SubItems[SortColumn].Text);
double n2 = Double.Parse(item2.SubItems[SortColumn].Text);
if (dir)
{
return(n1 < n2);
}
else
{
return(n1 > n2);
}
}
catch (Exception ex)
{
// no numeric value (bad bad)
Debug.WriteLine(ex.ToString());
return(false);
}
}
}
public bool GLLoad(GLItem item, GLSubItem subItem, GlacialList listctrl) // populate this control however you wish with item
{
// set the styles you want for this
this.BorderStyle = BorderStyle.None;
this.AutoSize = false;
m_item = item;
m_subItem = subItem;
m_Parent = listctrl;
this.Text = subItem.Text;
return(true); // we don't do any heavy processing in this ctrl so we just return true
}
public void sort(GLItemCollection items, int low_0, int high_0)
{
int lo = low_0;
int hi = high_0;
if (lo >= hi)
{
return;
}
int mid = (lo + hi) / 2;
sort(items, lo, mid);
sort(items, mid + 1, hi);
int end_lo = mid;
int start_hi = mid + 1;
while ((lo <= end_lo) && (start_hi <= hi))
{
if (StopRequested)
{
return;
}
if (CompareItems(items[lo], items[start_hi], CompareDirection.LessThan))
{
lo++;
}
else
{
GLItem T = items[start_hi];
for (int k = start_hi - 1; k >= lo; k--)
{
items[k + 1] = items[k];
}
items[lo] = T;
lo++;
end_lo++;
start_hi++;
}
}
}
public bool GLLoad(GLItem item, GLSubItem subItem, GlacialList listctrl)
{
this.Format = DateTimePickerFormat.Long;
try
{
m_item = item;
m_subItem = subItem;
m_Parent = listctrl;
this.Text = subItem.Text;
//this.Value = subItem.Text;
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
this.Text = DateTime.Now.ToString();
}
return(true);
}
/// <summary>
/// lowest level of add/insert. All add and insert routines eventually call this
///
/// in the future always have routines call this one as well to keep one point of entry
/// </summary>
/// <param name="nIndex"></param>
/// <param name="item"></param>
/// <returns></returns>
public int Insert(int nIndex, GLItem item)
{
item.Parent = this.Parent;
item.ChangedEvent += new ChangedEventHandler(Item_Changed);
if (nIndex < 0)
{
nIndex = List.Add(item); // add the item itself
}
else
{
List.Insert(nIndex, item);
}
if (ChangedEvent != null)
{
ChangedEvent(this, new ChangedEventArgs(ChangedTypes.ItemCollectionChanged, null, null, null));
}
return(nIndex);
}
/// <summary>
/// add an itemto the items collection
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public int Add(GLItem item)
{
return(Insert(-1, item));
}