internal void SetRootSequence(TabGroupSequence tgs)
{
// Use the new sequence as the root
_root = tgs;
}
internal void MoveActiveToNearestFromSequence(TabGroupSequence tgs)
{
// Is active leaf being moved from root sequence
if (_root == tgs)
{
// Then make nothing active
ActiveLeaf = null;
}
else
{
// Find the parent sequence of given sequence
TabGroupSequence tgsParent = tgs.Parent as TabGroupSequence;
// Must be valid, but had better check anyway
if (tgs != null)
{
// Move relative to given base in the sequence
MoveActiveInSequence(tgsParent, tgs);
}
}
}
protected void InternalConstruct(VisualStyle style)
{
// Prevent flicker with double buffering and all painting inside WM_PAINT
SetStyle(ControlStyles.DoubleBuffer |
ControlStyles.AllPaintingInWmPaint |
ControlStyles.UserPaint, true);
// We want to act as a drop target
this.AllowDrop = true;
// Remember parameters
_style = style;
// Define initial state
_numLeafs = 0;
_compacting = false;
_initializing = false;
_suspendLeafCount = 0;
// Create the root sequence that always exists
_root = new TabGroupSequence(this);
// Define default settings
ResetProminentLeaf();
ResetResizeBarVector();
ResetResizeBarColor();
ResetResizeBarLock();
ResetLayoutLock();
ResetCompactOptions();
ResetDefaultGroupMinimumWidth();
ResetDefaultGroupMinimumHeight();
ResetActiveLeaf();
ResetAutoCompact();
ResetAtLeastOneLeaf();
ResetCloseMenuText();
ResetProminentMenuText();
ResetRebalanceMenuText();
ResetMovePreviousMenuText();
ResetMoveNextMenuText();
ResetNewVerticalMenuText();
ResetNewHorizontalMenuText();
ResetCloseShortcut();
ResetProminentShortcut();
ResetRebalanceShortcut();
ResetMovePreviousShortcut();
ResetMoveNextShortcut();
ResetSplitVerticalShortcut();
ResetSplitHorizontalShortcut();
ResetImageList();
ResetDisplayTabMode();
ResetSaveControls();
ResetAutoCalculateDirty();
ResetDirty();
ResetPageCloseWhenEmpty();
// Add ourself to the application filtering list
// (to snoop for shortcut combinations)
Application.AddMessageFilter(this);
}
protected bool RecursiveActiveInSequence(TabGroupSequence tgs, bool forwards)
{
int count = tgs.Count;
for(int i=0; i<count; i++)
{
// Index depends on which direction we are processing
int index = (forwards == true) ? i : (tgs.Count - i - 1);
// Is this the needed leaf node?
if (tgs[index].IsLeaf)
{
// Make it active, and finish
ActiveLeaf = tgs[index] as TabGroupLeaf;
return true;
}
else
{
// Need to make a recursive check inside group
if (RecursiveActiveInSequence(tgs[index] as TabGroupSequence, forwards))
return true;
}
}
// Still no luck
return false;
}
protected void MoveActiveInSequence(TabGroupSequence tgs, TabGroupBase child)
{
int count = tgs.Count;
int index = tgs.IndexOf(child);
// First try each entry after that given
for(int i=index+1; i<count; i++)
{
// Is this the needed leaf node?
if (tgs[i].IsLeaf)
{
// Make it active, and finish
ActiveLeaf = tgs[i] as TabGroupLeaf;
return;
}
else
{
// Need to make a recursive check inside group
if (RecursiveActiveInSequence(tgs[i] as TabGroupSequence, true))
return;
}
}
// Now try each entry before that given
for(int i=index-1; i>=0; i--)
{
// Is this the needed leaf node?
if (tgs[i].IsLeaf)
{
// Make it active, and finish
ActiveLeaf = tgs[i] as TabGroupLeaf;
return;
}
else
{
// Need to make a recursive check inside group
if (RecursiveActiveInSequence(tgs[i] as TabGroupSequence, false))
return;
}
}
// Still no luck, try our own parent
if (tgs.Parent != null)
MoveActiveInSequence(tgs.Parent as TabGroupSequence, tgs);
}
protected TabGroupLeaf RecursiveFindLeafInSequence(TabGroupSequence tgs, TabGroupBase tgb, bool forwards)
{
int count = tgs.Count;
int index = tgs.IndexOf(tgb);
// Are we look for entries after the provided one?
if (forwards)
{
for(int i=index+1; i<count; i++)
{
// Is this the needed leaf node?
if (tgs[i].IsLeaf)
return tgs[i] as TabGroupLeaf;
else
{
TabGroupLeaf leaf = RecursiveFindLeafInSequence(tgs[i] as TabGroupSequence, forwards);
if (leaf != null)
return leaf;
}
}
}
else
{
// Now try each entry before that given
for(int i=index-1; i>=0; i--)
{
// Is this the needed leaf node?
if (tgs[i].IsLeaf)
return tgs[i] as TabGroupLeaf;
else
{
TabGroupLeaf leaf = RecursiveFindLeafInSequence(tgs[i] as TabGroupSequence, forwards);
if (leaf != null)
return leaf;
}
}
}
// Still no luck, try our own parent
if (tgs.Parent != null)
return RecursiveFindLeafInSequence(tgs.Parent as TabGroupSequence, tgs, forwards);
else
return null;
}
protected TabGroupLeaf RecursiveFindLeafInSequence(TabGroupSequence tgs, bool forwards)
{
int count = tgs.Count;
for(int i=0; i<count; i++)
{
// Index depends on which direction we are processing
int index = (forwards == true) ? i : (tgs.Count - i - 1);
// Is this the needed leaf node?
if (tgs[index].IsLeaf)
return tgs[index] as TabGroupLeaf;
else
{
// Need to make a recursive check inside group
TabGroupLeaf leaf = RecursiveFindLeafInSequence(tgs[index] as TabGroupSequence, forwards);
if (leaf != null)
return leaf;
}
}
// Still no luck
return null;
}
public override void LoadFromXml(XmlTextReader xmlIn)
{
// Grab the expected attributes
string rawCount = xmlIn.GetAttribute(0);
string rawUnique = xmlIn.GetAttribute(1);
string rawSpace = xmlIn.GetAttribute(2);
string rawDirection = xmlIn.GetAttribute(3);
// Convert to correct types
int count = Convert.ToInt32(rawCount);
int unique = Convert.ToInt32(rawUnique);
Decimal space = Convert.ToDecimal(rawSpace);
Direction direction = (rawDirection == "Horizontal" ? Direction.Horizontal :
Direction.Vertical);
// Update myself with new values
_unique = unique;
_space = space;
_direction = direction;
// Load each of the children
for(int i=0; i<count; i++)
{
// Read the next Element
if (!xmlIn.Read())
throw new ArgumentException("An element was expected but could not be read in");
TabGroupBase newElement = null;
// Is it another sequence?
if (xmlIn.Name == "Sequence")
newElement = new TabGroupSequence(_tabbedGroups, this);
else if (xmlIn.Name == "Leaf")
newElement = new TabGroupLeaf(_tabbedGroups, this);
else
throw new ArgumentException("Unknown element was encountered");
bool expectEndElement = !xmlIn.IsEmptyElement;
// Load its config
newElement.LoadFromXml(xmlIn);
// Add new element to the collection
Add(newElement);
// Do we expect and end element to occur?
if (expectEndElement)
{
// Move past the end element
if (!xmlIn.Read())
throw new ArgumentException("Could not read in next expected node");
// Check it has the expected name
if (xmlIn.NodeType != XmlNodeType.EndElement)
throw new ArgumentException("EndElement expected but not found");
}
}
}
protected void AddGroupToSequence(TabGroupSequence tgs, TabGroupLeaf sourceLeaf, bool before)
{
// Remember original auto compact mode
bool autoCompact = _tabbedGroups.AutoCompact;
// Turn mode off as it interferes with reorganisation
_tabbedGroups.AutoCompact = false;
// Find our index into parent collection
int pos = tgs.IndexOf(this);
TabGroupLeaf newGroup = null;
// New group inserted before existing one?
if (before)
newGroup = tgs.InsertNewLeaf(pos);
else
{
// No, are we at the end of the collection?
if (pos == (tgs.Count - 1))
newGroup = tgs.AddNewLeaf();
else
newGroup = tgs.InsertNewLeaf(pos + 1);
}
// Get tab control for source leaf
Controls.TabControl tc = sourceLeaf.GroupControl as Controls.TabControl;
TabPage tp = tc.SelectedTab;
// Remove page from ourself
tc.TabPages.Remove(tp);
// Add into the new leaf
newGroup.TabPages.Add(tp);
// Reset compacting mode as we have updated the structure
_tabbedGroups.AutoCompact = autoCompact;
// Do we need to compact?
if (_tabbedGroups.AutoCompact)
_tabbedGroups.Compact();
}