protected virtual void OnTextModified(StyledTextModificationKind kind, int offset, int length)
{
if (Parent != null)
{
Parent.OnChildrenTextModified(this, kind, offset, length);
}
}
public StyledTextModifiedEventArgs(
StyledTextModificationKind kind,
int offset,
int length
)
{
_kind = kind;
_offset = offset;
_length = length;
}
protected override void OnTextModified(StyledTextModificationKind kind, int offset, int length)
{
_lineContainer.Dirty();
var handler = TextModified;
if (handler != null)
{
handler(this, new StyledTextModifiedEventArgs(kind, offset, length));
}
}
// ------------------------------
// protected
// ------------------------------
protected internal override void OnChildrenTextModified(
Flow sender, StyledTextModificationKind kind, int offset, int length
)
{
var block = sender as Block;
if (block != null)
{
_offsetCache.Invalidate(block);
OnTextModified(kind, offset + _offsetCache.GetOffset(block), length);
}
}
// ------------------------------
// protected
// ------------------------------
protected internal override void OnChildrenTextModified(
Flow sender, StyledTextModificationKind kind, int offset, int length
)
{
var line = sender as LineSegment;
if (line != null)
{
_offsetCache.Invalidate(line);
OnTextModified(kind, _offsetCache.GetOffset(line) + offset, length);
}
}
protected internal override void OnChildrenTextModified(
Flow sender, StyledTextModificationKind kind, int offset, int length
)
{
throw new InvalidOperationException("Inline must not have child");
}
/// <summary>
/// 子からの変更通知を受ける．offsetはsender内での文字インデクス．
/// </summary>
protected internal abstract void OnChildrenTextModified(
Flow sender, StyledTextModificationKind kind, int offset, int length
);
protected override void OnTextModified(StyledTextModificationKind kind, int offset, int length)
{
_lineContainer.Dirty();
base.OnTextModified(kind, offset, length);
}
