public void Insert(int position, FragmentSelection fragments)
{
var command = new InsertSelectionCommand(this, position, fragments);
command.Execute();
var undoCommand = new CutSelectionCommand(this, fragments);
AddRedoUndo(undoCommand, command);
}
public void CutSelection(FragmentSelection fragments)
{
Contract.Requires(GeProfile.IsSelectable(fragments.Start, fragments.End, false));
Contract.Ensures(GeProfile.IsInputable(fragments.Start));
SaveState();
NewProfile = GeProfile.ProfileText.Substring(0, fragments.Start) + GeProfile.ProfileText.Substring(fragments.End);
ChangeProfile();
RestoreState();
}
public void Cut(FragmentSelection fragments)
{
var command = new CutSelectionCommand(this, fragments);
command.Execute();
var undoCommand = new InsertSelectionCommand(this, fragments.Start, fragments);
AddRedoUndo(undoCommand, command);
}
public void InsertSelection(int position, FragmentSelection fragments)
{
Contract.Requires(GeProfile.IsInputable(position));
Contract.Ensures(GeProfile.IsSelectable(position, position + fragments.ProfileText.Length, false));
SaveState();
NewProfile = GeProfile.ProfileText.Insert(NodeFragmentPosition.Position.Offset + position,
fragments.ProfileText);
ChangeProfile();
RestoreState();
}
public void Insert(int position, string text)
{
Contract.Requires(IsInputable(position));
Contract.Ensures(IsSelectable(position, position + text.Length, false));
var fragments = new FragmentSelection(position, position + text.Length)
{
ProfileText = text
};
Insert(position, fragments);
}
public FragmentSelection GetSelection(int start, int end)
{
Contract.Requires(IsSelectable(start, end, false));
var fragmentSelection = new FragmentSelection(start, end);
Fragment beforeStart, afterStart, beforeEnd, afterEnd;
GetFragmentsAt(out beforeStart, out afterStart, start);
GetFragmentsAt(out beforeEnd, out afterEnd, end);
if (beforeStart != afterStart && beforeEnd != afterEnd)
{
if (afterStart == beforeEnd)
{
fragmentSelection.Fragments.Add(afterStart);
}
else if (afterStart.ParentFragment == beforeEnd.ParentFragment)
{
var fragments = ((FragmentBody)afterStart.Parent).FragmentList;
CopySelectionFragments(fragments, fragmentSelection.Fragments, fragments.IndexOf(afterStart),
fragments.IndexOf(beforeEnd));
}
else
{
var prefixText = afterStart.ParentFragment is TextBlock;
var suffixText = beforeEnd.ParentFragment is TextBlock;
var fragments = prefixText
? ((FragmentBody)afterStart.ParentFragment.Parent).FragmentList
: ((FragmentBody)afterStart.Parent).FragmentList;
int i;
if (prefixText)
{
i = fragments.IndexOf(afterStart.ParentFragment) + 1;
var textFragments = ((FragmentBody)afterStart.Parent).FragmentList;
CopySelectionFragments(textFragments, fragmentSelection.Fragments,
textFragments.IndexOf(afterStart), textFragments.Count - 1);
}
else
{
i = fragments.IndexOf(afterStart);
}
var j = suffixText ? fragments.IndexOf(beforeEnd.ParentFragment) - 1 : fragments.IndexOf(beforeEnd);
CopySelectionFragments(fragments, fragmentSelection.Fragments, i, j);
if (suffixText)
{
var textFragments = ((FragmentBody)beforeEnd.Parent).FragmentList;
CopySelectionFragments(textFragments, fragmentSelection.Fragments, 0,
textFragments.IndexOf(beforeEnd));
}
}
}
else if (beforeStart == afterStart && beforeEnd != afterEnd)
{
Contract.Assert(beforeStart is Text);
var pos = ProfileTextPostionList.GetFragmentPosition(afterStart);
fragmentSelection.SetPrefix((Text)afterStart, start - pos.Position.Offset);
if (afterStart != beforeEnd)
{
var fragments = ((FragmentBody)afterStart.Parent).FragmentList;
var n = fragments.Count;
var i = fragments.IndexOf(afterStart);
CopySelectionFragments(fragments, fragmentSelection.Fragments, i + 1, n - 1);
fragmentSelection.Fragments.Add(beforeEnd);
}
}
else if (beforeStart != afterStart && beforeEnd == afterEnd)
{
Contract.Assert(afterEnd is Text);
var pos = ProfileTextPostionList.GetFragmentPosition(beforeEnd);
fragmentSelection.SetSuffix((Text)beforeEnd, end - pos.Position.Offset);
if (beforeEnd != afterStart)
{
fragmentSelection.Fragments.Add(afterStart);
}
}
else if (beforeStart == afterStart && beforeEnd == afterEnd)
{
Contract.Assert(afterEnd is Text);
var pos = ProfileTextPostionList.GetFragmentPosition(beforeEnd);
fragmentSelection.SetInfix((Text)beforeEnd, start - pos.Position.Offset, end - pos.Position.Offset);
}
fragmentSelection.ProfileText = ProfileText.Substring(start, end - start);
return(fragmentSelection);
}
public InsertSelectionCommand(GeProfile geProfile, int position, FragmentSelection fragments)
: base(geProfile)
{
Position = position;
Fragments = fragments;
}
public CutSelectionCommand(GeProfile geProfile, FragmentSelection fragments)
: base(geProfile)
{
Fragments = fragments;
}