/// <summary>
/// Create a new SynchronizeStateEventArgs.
/// </summary>
/// <param name="tree">Tree raising this event. Necessary to allow clients that handle synchronization themeselves to raise events back to the tree.</param>
/// <param name="itemsToSynchronize">Enumerator of items to be synchronized.</param>
/// <param name="matchBranch">Branch whose state should be matched.</param>
/// <param name="matchRow">Row whose state should be matched.</param>
/// <param name="matchColumn">Column whose state should be matched.</param>
public SynchronizeStateEventArgs(
ITree tree, ColumnItemEnumerator itemsToSynchronize, IBranch matchBranch, int matchRow, int matchColumn)
{
Handled = false;
myItemsToSynchronize = itemsToSynchronize;
myMatchBranch = matchBranch;
myMatchRow = matchRow;
myMatchColumn = matchColumn;
myTree = tree as VirtualTree;
}
/// <summary>
/// Create a new SynchronizeStateEventArgs.
/// </summary>
/// <param name="tree">Tree raising this event. Necessary to allow clients that handle synchronization themeselves to raise events back to the tree.</param>
/// <param name="itemsToSynchronize">Enumerator of items to be synchronized.</param>
/// <param name="matchBranch">Branch whose state should be matched.</param>
/// <param name="matchRow">Row whose state should be matched.</param>
/// <param name="matchColumn">Column whose state should be matched.</param>
public SynchronizeStateEventArgs(
ITree tree, ColumnItemEnumerator itemsToSynchronize, IBranch matchBranch, int matchRow, int matchColumn)
{
Handled = false;
myItemsToSynchronize = itemsToSynchronize;
myMatchBranch = matchBranch;
myMatchRow = matchRow;
myMatchColumn = matchColumn;
myTree = tree as VirtualTree;
}
void ITree.SynchronizeState(ColumnItemEnumerator itemsToSynchronize, IBranch matchBranch, int matchRow, int matchColumn)
{
myParent.SynchronizeState(itemsToSynchronize, matchBranch, matchRow, matchColumn, true /* translateSingleColumnView */);
}
/// <summary>
/// Synchronize the state of the given items to the state of another branch.
/// </summary>
/// <param name="itemsToSynchronize">items whose state should be synchronized.</param>
/// <param name="matchBranch">Branch to synchronize with</param>
/// <param name="matchRow">Row in branch to synchronize with</param>
/// <param name="matchColumn">Column in branch to synchronize with</param>
/// <param name="translateSingleColumnView">True if this synchronize is coming from a single column view attached to the tree.</param>
protected internal void SynchronizeState(
ColumnItemEnumerator itemsToSynchronize, IBranch matchBranch, int matchRow, int matchColumn, bool translateSingleColumnView)
{
// UNDONE : check translateSingleColumnView before firing events because sync batching is not currently supported
// for the single column view.
SynchronizeStateEventArgs e = null;
if (!translateSingleColumnView && SynchronizationBeginning != null
|| SynchronizationEnding != null)
{
e = new SynchronizeStateEventArgs(this, itemsToSynchronize, matchBranch, matchRow, matchColumn);
}
if (!translateSingleColumnView
&& SynchronizationBeginning != null)
{
SynchronizationBeginning(this, e);
}
if (e == null
|| !e.Handled)
{
itemsToSynchronize.Reset();
if (!translateSingleColumnView)
{
while (itemsToSynchronize.MoveNext())
{
if (
!(itemsToSynchronize.Branch == matchBranch && itemsToSynchronize.RowInBranch == matchRow
&& itemsToSynchronize.ColumnInBranch == matchColumn))
{
DoToggleState(itemsToSynchronize.RowInTree, itemsToSynchronize.ColumnInTree, matchBranch, matchRow, matchColumn);
}
}
}
else
{
while (itemsToSynchronize.MoveNext())
{
if (
!(itemsToSynchronize.Branch == matchBranch && itemsToSynchronize.RowInBranch == matchRow
&& itemsToSynchronize.ColumnInBranch == matchColumn))
{
DoToggleState(TranslateSingleColumnRow(itemsToSynchronize.RowInTree), 0, matchBranch, matchRow, matchColumn);
}
}
}
}
if (!translateSingleColumnView
&& SynchronizationEnding != null)
{
SynchronizationEnding(this, e);
}
}
