static object OnFocusIndicatorCoerceCallback(DependencyObject d, object baseValue)
{
SequenceBlock sb = (SequenceBlock)d;
int newColumn = sb.FocusedColumnIndex;
return(newColumn >= sb.Column && newColumn <= sb.Column + sb.Count);
}
static object OnFocusedSymbolBrushCoerceCallback(DependencyObject d, object baseValue)
{
SequenceBlock sb = (SequenceBlock)d;
return((sb.FocusedSymbol != null && sb.SequenceColorSelector != null)
? sb.SequenceColorSelector.GetSymbolBrush(sb.FocusedSymbol)
: baseValue);
}
static object OnFocusedSymbolCoerceCallback(DependencyObject d, object baseValue)
{
SequenceBlock sb = (SequenceBlock)d;
return((sb.Sequence != null && sb.FocusedColumnIndex >= 0 && sb.FocusedColumnIndex < sb.Sequence.Count)
? sb.Sequence[sb.FocusedColumnIndex]
: null);
}
/// <summary>
/// This is called to create the visual child
/// </summary>
/// <param name="owner"></param>
internal void DrawVisualSequence(SequenceBlock owner)
{
// Nothing to do
if (owner == null || owner.Sequence == null || owner.Count == 0)
{
Child = null;
}
else
{
if (Child == null || Child.FontFamily != owner.FontFamily || Child.FontSize != owner.FontSize)
{
Child = new SequenceTextDrawingVisual(owner.SequenceColorSelector, owner.Sequence, owner.FontFamily,
owner.FontSize);
}
Child.Render(owner.Column, owner.Count);
}
}
static object OnFocusRectangleOffsetCoerceCallback(DependencyObject d, object baseValue)
{
SequenceBlock sb = (SequenceBlock)d;
return((sb.FocusedColumnIndex - sb.Column) * sb.CellWidth);
}