/// <summary>
/// Adds column to the sorting order. Typically called when user
/// Shift+Click on the column header adding it to the set.
/// If the column is already in the set, the call does nothing.
/// </summary>
/// <param name="v"></param>
public void Add(HeaderTextVisual v) {
var existing = _sortOrderList.FirstOrDefault(x => x.ColumnIndex == v.ColumnIndex);
if (existing == null) {
_sortOrderList.Add(new ColumnSortOrder(v.ColumnIndex, v.SortOrder == SortOrderType.Descending));
} else {
existing.Descending = v.SortOrder == SortOrderType.Descending;
}
}
private void ResetSortToPrimary(HeaderTextVisual primary)
{
foreach (var viz in _visualChildren)
{
var v = viz as HeaderTextVisual;
if (v != null && v != primary)
{
v.SortOrder = SortOrderType.None;
}
}
}
/// <summary>
/// Adds column to the sorting order. Typically called when user
/// Shift+Click on the column header adding it to the set.
/// If the column is already in the set, the call does nothing.
/// </summary>
/// <param name="v"></param>
public void Add(HeaderTextVisual v)
{
var existing = _sortOrderList.FirstOrDefault(x => x.ColumnIndex == v.ColumnIndex);
if (existing == null)
{
_sortOrderList.Add(new ColumnSortOrder(v.ColumnIndex, v.SortOrder == SortOrderType.Descending));
}
else
{
existing.Descending = v.SortOrder == SortOrderType.Descending;
}
}
public void ToggleSort(HeaderTextVisual v, bool add)
{
// Order: None -> Ascending -> Descending -> Ascending -> Descending -> ...
v.ToggleSortOrder();
if (add)
{
// Shift+Click adds column to the sorting set.
_sortOrder.Add(v);
}
else
{
// Clear all column sorts except the one that was clicked on.
ResetSortToPrimary(v);
_sortOrder.ResetTo(v);
}
SortOrderChanged?.Invoke(this, EventArgs.Empty);
}
private void CreateGrid(GridRange newViewport, IGrid <string> data, GridUpdateType updateType)
{
var orgGrid = _visualGrid;
if (Header)
{
_visualGrid = new Grid <TextVisual>(
newViewport,
(r, c) => {
if (updateType == GridUpdateType.Sort)
{
return(orgGrid[r, c]);
}
if (updateType != GridUpdateType.Refresh && _dataViewport.Contains(r, c))
{
return(orgGrid[r, c]);
}
var visual = new HeaderTextVisual(c);
InitVisual(r, c, data, visual);
return(visual);
});
}
else
{
_visualGrid = new Grid <TextVisual>(
newViewport,
(r, c) => {
if (updateType != GridUpdateType.Refresh && _dataViewport.Contains(r, c))
{
return(orgGrid[r, c]);
}
var visual = new TextVisual();
InitVisual(r, c, data, visual);
return(visual);
});
}
}
/// <summary>
/// Resets sort to one column assuming default (ascending) order.
/// Typically called as a result of click on one of the column
/// headers which clears current sort across all columns and sets
/// the clicked column as primary with the default sorting order.
/// </summary>
/// <param name="v"></param>
public void ResetTo(HeaderTextVisual v)
{
_sortOrderList.Clear();
_sortOrderList.Add(new ColumnSortOrder(v.ColumnIndex, v.SortOrder == SortOrderType.Descending));
}
private void ResetSortToPrimary(HeaderTextVisual primary) {
foreach (var viz in _visualChildren) {
var v = viz as HeaderTextVisual;
if (v != null && v != primary) {
v.SortOrder = SortOrderType.None;
}
}
}
public void ToggleSort(HeaderTextVisual v, bool add) {
// Order: None -> Ascending -> Descending -> Ascending -> Descending -> ...
v.ToggleSortOrder();
if (add) {
// Shift+Click adds column to the sorting set.
_sortOrder.Add(v);
} else {
// Clear all column sorts except the one that was clicked on.
ResetSortToPrimary(v);
_sortOrder.ResetTo(v);
}
SortOrderChanged?.Invoke(this, EventArgs.Empty);
}
private void CreateGrid(GridRange newViewport, IGrid<string> data, GridUpdateType updateType) {
var orgGrid = _visualGrid;
if (Header) {
_visualGrid = new Grid<TextVisual>(
newViewport,
(r, c) => {
if (updateType == GridUpdateType.Sort) {
return orgGrid[r, c];
}
if (updateType != GridUpdateType.Refresh && _dataViewport.Contains(r, c)) {
return orgGrid[r, c];
}
var visual = new HeaderTextVisual(c);
InitVisual(r, c, data, visual);
return visual;
});
} else {
_visualGrid = new Grid<TextVisual>(
newViewport,
(r, c) => {
if (updateType != GridUpdateType.Refresh && _dataViewport.Contains(r, c)) {
return orgGrid[r, c];
}
var visual = new TextVisual();
InitVisual(r, c, data, visual);
return visual;
});
}
}
/// <summary>
/// Resets sort to one column assuming default (ascending) order.
/// Typically called as a result of click on one of the column
/// headers which clears current sort across all columns and sets
/// the clicked column as primary with the default sorting order.
/// </summary>
/// <param name="v"></param>
public void ResetTo(HeaderTextVisual v) {
_sortOrderList.Clear();
_sortOrderList.Add(new ColumnSortOrder(v.ColumnIndex, v.SortOrder == SortOrderType.Descending));
}
