public void ReceiveSpecialInput(Keys key)
{
switch (key)
{
case Keys.Left:
if (isSelecting)
{
InitSelectionStart();
}
CaretIndex = Math.Max(CaretIndex - 1, 0);
caretTimer = 0;
HandleSelection();
break;
case Keys.Right:
if (isSelecting)
{
InitSelectionStart();
}
CaretIndex = Math.Min(CaretIndex + 1, Text.Length);
caretTimer = 0;
HandleSelection();
break;
case Keys.Up:
if (isSelecting)
{
InitSelectionStart();
}
float lineHeight = Font.MeasureString("T").Y *TextBlock.TextScale;
int newIndex = textBlock.GetCaretIndexFromLocalPos(new Vector2(caretPos.X, caretPos.Y - lineHeight));
CaretIndex = newIndex;
caretTimer = 0;
HandleSelection();
break;
case Keys.Down:
if (isSelecting)
{
InitSelectionStart();
}
lineHeight = Font.MeasureString("T").Y *TextBlock.TextScale;
newIndex = textBlock.GetCaretIndexFromLocalPos(new Vector2(caretPos.X, caretPos.Y + lineHeight));
CaretIndex = newIndex;
caretTimer = 0;
HandleSelection();
break;
case Keys.Delete when !Readonly:
if (selectedCharacters > 0)
{
RemoveSelectedText();
}
else if (Text.Length > 0 && CaretIndex < Text.Length)
{
SetText(Text.Remove(CaretIndex, 1));
OnTextChanged?.Invoke(this, Text);
caretPosDirty = true;
}
break;
case Keys.Tab:
// Select the next text box.
var editor = RectTransform.GetParents().Select(p => p.GUIComponent as SerializableEntityEditor).FirstOrDefault(e => e != null);
if (editor == null)
{
break;
}
var allTextBoxes = GetAndSortTextBoxes(editor).ToList();
if (allTextBoxes.Any())
{
int currentIndex = allTextBoxes.IndexOf(this);
int nextIndex = Math.Min(allTextBoxes.Count - 1, currentIndex + 1);
var next = allTextBoxes[nextIndex];
if (next != this)
{
next.Select();
next.Flash(Color.White * 0.5f, 0.5f);
}
else
{
// Select the first text box in the next editor that has text boxes.
var listBox = RectTransform.GetParents().Select(p => p.GUIComponent as GUIListBox).FirstOrDefault(lb => lb != null);
if (listBox == null)
{
break;
}
// TODO: The get's out of focus if the selection is out of view.
// Not sure how's that possible, but it seems to work when the auto scroll is disabled and you handle the scrolling manually.
listBox.SelectNext();
while (SelectNextTextBox(listBox) == null)
{
var previous = listBox.SelectedComponent;
listBox.SelectNext();
if (listBox.SelectedComponent == previous)
{
break;
}
}
}
}
IEnumerable <GUITextBox> GetAndSortTextBoxes(GUIComponent parent) => parent.GetAllChildren <GUITextBox>().OrderBy(t => t.Rect.Y).ThenBy(t => t.Rect.X);
GUITextBox SelectNextTextBox(GUIListBox listBox)
{
var textBoxes = GetAndSortTextBoxes(listBox.SelectedComponent);
if (textBoxes.Any())
{
var next = textBoxes.First();
next.Select();
next.Flash(Color.White * 0.5f, 0.5f);
return(next);
}
return(null);
}
break;
}
OnKeyHit?.Invoke(this, key);
void HandleSelection()
{
if (isSelecting)
{
InitSelectionStart();
CalculateSelection();
}
else
{
ClearSelection();
}
}
}
// for text highlighting
public void OnType()
{
OnKeyHit?.Invoke(inputField.text);
}