/// <summary>
/// Distribute the changes made to the plotitem 'pivotitem' to all other items in the collection and if neccessary, also up and down the plot item tree.
/// </summary>
/// <param name="pivotitem">The plot item where changes to the plot item's styles were made.</param>
public void DistributeChanges(IGPlotItem pivotitem)
{
int pivotidx = _plotItems.IndexOf(pivotitem);
if (pivotidx < 0)
{
return;
}
// Distribute the changes backward to the first item
PrepareStylesIterativeBackward(pivotidx, this.ParentLayer);
PlotItemCollection rootCollection = ApplyStylesIterativeBackward(pivotidx);
// now prepare and apply the styles forward normally beginning from the root collection
// we can set the parent styles to null since rootCollection is the lowest collection that don't inherit from a lower group.
rootCollection.PrepareStylesForward_HierarchyUpOnly(null, this.ParentLayer);
rootCollection.ApplyStylesForward_HierarchyUpOnly(null);
}
/// <summary>
/// Apply styles forward, but only up in the hierarchy.
/// </summary>
/// <param name="parentstyles">The parent group style collection.</param>
protected void ApplyStylesForward_HierarchyUpOnly(PlotGroupStyleCollection parentstyles)
{
bool transferFromParentStyles =
parentstyles != null &&
parentstyles.Count != 0 &&
parentstyles.DistributeToChildGroups &&
this._styles.InheritFromParentGroups;
if (transferFromParentStyles)
{
PlotGroupStyleCollection.TransferFromTo(parentstyles, _styles);
}
_styles.BeginApply();
// now distibute the styles from the first item down to the last item
int last = _plotItems.Count - 1;
for (int i = 0; i <= last; i++)
{
IGPlotItem pi = _plotItems[i];
if (pi is PlotItemCollection)
{
PlotItemCollection pic = (PlotItemCollection)pi;
pic.ApplyStylesForward_HierarchyUpOnly(_styles);
_styles.StepIfForeignSteppingFalse(1, ((PlotItemCollection)pi)._styles);
}
else
{
pi.ApplyStyles(_styles);
_styles.Step(1);
}
}
_styles.EndApply();
if (transferFromParentStyles)
{
PlotGroupStyleCollection.TransferFromToIfBothSteppingEnabled(_styles, parentstyles);
parentstyles.SetAllToApplied(); // to indicate that we have applied this styles and so to enable stepping
}
}