protected void CompactRemoveEmptyTabLeafs(TabbedGroups.CompactFlags flags)
{
// Should we check for empty leaf nodes?
if ((flags & TabbedGroups.CompactFlags.RemoveEmptyTabLeaf) != 0)
{
int count = _children.Count;
for (int index = 0; index < count; index++)
{
// Only interested in leaf entries
if (_children[index].IsLeaf)
{
TabGroupLeaf tgl = (TabGroupLeaf)_children[index];
// Is this an empty leaf node?
if (tgl.Count == 0)
{
// Update active leaf setting
if (_tabbedGroups.ActiveLeaf == tgl)
{
TabGroupLeaf newLeaf = _tabbedGroups.NextLeaf(tgl);
if (newLeaf == null)
{
newLeaf = _tabbedGroups.PreviousLeaf(tgl);
}
_tabbedGroups.ActiveLeaf = newLeaf;
}
// Need to remove the redundant entry
RemoveAt(index);
// Reduce number of entries left to check
count--;
// Move backwards so the next increment stays on same index
index--;
// Mark layout as dirty
if (_tabbedGroups.AutoCalculateDirty)
{
_tabbedGroups.Dirty = true;
}
}
}
}
}
}
public void Compact(TabbedGroups.CompactFlags flags)
{
// Compact each child sequence
foreach (TabGroupBase tgb in _children)
{
if (tgb.IsSequence)
{
(tgb as TabGroupSequence).Compact(flags);
}
}
// Remove dangling entries
CompactRemoveEmptyTabLeafs(flags);
CompactRemoveEmptyTabSequences(flags);
// Integrate single entries
CompactReduceSingleEntries(flags);
// Integrate sub-sequences which run in same direction
CompactReduceSameDirection(flags);
}
protected void CompactRemoveEmptyTabSequences(TabbedGroups.CompactFlags flags)
{
// Should we check for empty sequence nodes?
if ((flags & TabbedGroups.CompactFlags.RemoveEmptyTabSequence) != 0)
{
int count = _children.Count;
for (int index = 0; index < count; index++)
{
// Only interested in sequence entries
if (_children[index].IsSequence)
{
TabGroupSequence tgs = (TabGroupSequence)_children[index];
// Is this an empty sequence node?
if (tgs.Count == 0)
{
// Need to remove the redundant entry
RemoveAt(index);
// Reduce number of entries left to check
count--;
// Move backwards so the next increment stays on same index
index--;
// Mark layout as dirty
if (_tabbedGroups.AutoCalculateDirty)
{
_tabbedGroups.Dirty = true;
}
}
}
}
}
}
protected void CompactReduceSameDirection(TabbedGroups.CompactFlags flags)
{
bool changed = false;
// Should we check for same direction sub-sequences?
if ((flags & TabbedGroups.CompactFlags.ReduceSameDirection) != 0)
{
int count = _children.Count;
for (int index = 0; index < count; index++)
{
// Only interested in sequence entries
if (_children[index].IsSequence)
{
TabGroupSequence tgs = (TabGroupSequence)_children[index];
// Does it run in same direction as ourself?
if (_direction == tgs.Direction)
{
// Remember how much space the base entry occupies
Decimal temp = tgs.RealSpace;
// Find the child control to be replaced
int childPos = _control.Controls.IndexOf(tgs.GroupControl);
// Need to remove a resize bar before the control?
if (childPos > 0)
{
ControlHelper.RemoveAt(_control.Controls, childPos);
}
// Remove the actual control
ControlHelper.RemoveAt(_control.Controls, childPos);
// Remove the intermediate group
_children.RemoveAt(index);
// Reflect change in size
count--;
Decimal totalAllocated = 0m;
// Add in each sub group in turn
int subCount = tgs.Count;
bool firstInsert = true;
for (int subIndex = 0; subIndex < subCount; subIndex++)
{
TabGroupBase tgb = tgs[subIndex];
// What percentage of original space did it have?
Decimal orig = tgb.RealSpace;
// Give it the same proportion of new space
Decimal update = Decimal.Round(temp / 100 * orig, SPACE_PRECISION);
// Keep total actually allocated
totalAllocated += update;
// Use new proportion
tgb.RealSpace = update;
// Update parentage
tgb.SetParent(this);
// Does new child control need a resizing bar?
if ((childPos > 0) && !firstInsert)
{
// Create a resizing bar
ResizeBar bar = new ResizeBar(_direction, this);
_control.Controls.Add(bar);
_control.Controls.SetChildIndex(bar, childPos++);
}
// Add new child control in its place
_control.Controls.Add(tgb.GroupControl);
_control.Controls.SetChildIndex(tgb.GroupControl, childPos++);
// Insert at current position
_children.Insert(index, tgb);
// Adjust variables to reflect increased size
index++;
count++;
firstInsert = false;
}
// Assign any remainder to last group
_children[index - 1].RealSpace += temp - totalAllocated;
// Need controls repositioned
changed = true;
// Mark layout as dirty
if (_tabbedGroups.AutoCalculateDirty)
{
_tabbedGroups.Dirty = true;
}
}
}
}
}
// Change in contents requires entries to be repositioned
if (changed)
{
RepositionChildren();
}
}
protected void CompactReduceSingleEntries(TabbedGroups.CompactFlags flags)
{
bool changed = false;
// Should we check for single instance nodes?
if ((flags & TabbedGroups.CompactFlags.ReduceSingleEntries) != 0)
{
int count = _children.Count;
for (int index = 0; index < count; index++)
{
// Only interested in sequence entries
if (_children[index].IsSequence)
{
TabGroupSequence tgs = (TabGroupSequence)_children[index];
// Does this entry only have a single child
if (tgs.Count == 1)
{
// Remember how much space the base entry occupies
Decimal temp = tgs.RealSpace;
// Get reference to only child
TabGroupBase child = tgs[0];
// Update parentage
child.SetParent(this);
// Find the child control to be replaced
int childPos = _control.Controls.IndexOf(tgs.GroupControl);
// Remove it
ControlHelper.RemoveAt(_control.Controls, childPos);
// Add new child control in its place
_control.Controls.Add(child.GroupControl);
_control.Controls.SetChildIndex(child.GroupControl, childPos);
// Replace the middle object with the child
_children.RemoveAt(index);
_children.Insert(index, child);
// Restore its correct spacing
child.RealSpace = temp;
// Need controls repositioned
changed = true;
// Mark layout as dirty
if (_tabbedGroups.AutoCalculateDirty)
{
_tabbedGroups.Dirty = true;
}
}
}
}
}
// Change in contents requires entries to be repositioned
if (changed)
{
RepositionChildren();
}
}