public override void InternalRender(RenderContext context)
{
if (_formattedText.Font == null)
{
return;
}
var bounds = ActualBounds;
if (Selection != null && !string.IsNullOrEmpty(Text))
{
var selectStart = Math.Min(_textEdit.SelectStart, _textEdit.SelectEnd);
var selectEnd = Math.Max(_textEdit.SelectStart, _textEdit.SelectEnd);
if (selectStart < selectEnd)
{
// Debug.WriteLine("{0} - {1}", selectStart, selectEnd);
var startGlyph = _formattedText.GetGlyphInfoByIndex(selectStart);
var lineIndex = startGlyph.TextLine.LineIndex;
var i = selectStart;
while (true)
{
startGlyph = _formattedText.GetGlyphInfoByIndex(i);
var startPosition = GetRenderPositionByIndex(i);
if (selectEnd < i + startGlyph.TextLine.Count)
{
var endPosition = GetRenderPositionByIndex(selectEnd);
context.Draw(Selection,
new Rectangle(startPosition.X,
startPosition.Y,
endPosition.X - startPosition.X,
CrossEngineStuff.LineSpacing(_formattedText.Font)));
break;
}
context.Draw(Selection,
new Rectangle(startPosition.X,
startPosition.Y,
bounds.Left + startGlyph.TextLine.Size.X - startPosition.X,
CrossEngineStuff.LineSpacing(_formattedText.Font)));
++lineIndex;
if (lineIndex >= _formattedText.Strings.Length)
{
break;
}
i = 0;
for (var k = 0; k < lineIndex; ++k)
{
i += _formattedText.Strings[k].Count;
}
}
}
}
var textColor = TextColor;
if (!Enabled && DisabledTextColor != null)
{
textColor = DisabledTextColor.Value;
}
else if (IsFocused && FocusedTextColor != null)
{
textColor = FocusedTextColor.Value;
}
var centeredBounds = LayoutUtils.Align(new Point(bounds.Width, bounds.Height), _formattedText.Size, HorizontalAlignment.Left, TextVerticalAlignment);
centeredBounds.Offset(bounds.Location);
_formattedText.Draw(context.Batch, centeredBounds.Location, context.View, textColor, context.Opacity);
if (!IsFocused)
{
// Skip cursor rendering if the widget doesnt have the focus
return;
}
var now = DateTime.Now;
if ((now - _lastBlinkStamp).TotalMilliseconds >= BlinkIntervalInMs)
{
_cursorOn = !_cursorOn;
_lastBlinkStamp = now;
}
if (_cursorOn && Cursor != null)
{
var pos = GetRenderPositionByIndex(_textEdit.CursorIndex);
context.Draw(Cursor, new Rectangle(pos.X,
pos.Y,
Cursor.Size.X,
CrossEngineStuff.LineSpacing(_formattedText.Font)));
}
}
public override void InternalRender(RenderContext context)
{
if (_formattedText.Font == null)
{
return;
}
var bounds = ActualBounds;
RenderSelection(context);
var textColor = TextColor;
var opacity = context.Opacity;
if (HintTextEnabled)
{
opacity *= 0.5f;
}
else if (!Enabled && DisabledTextColor != null)
{
textColor = DisabledTextColor.Value;
}
else if (IsKeyboardFocused && FocusedTextColor != null)
{
textColor = FocusedTextColor.Value;
}
var centeredBounds = LayoutUtils.Align(new Point(bounds.Width, bounds.Height), _formattedText.Size, HorizontalAlignment.Left, TextVerticalAlignment);
centeredBounds.Offset(bounds.Location);
var p = new Point(centeredBounds.Location.X - _internalScrolling.X,
centeredBounds.Location.Y - _internalScrolling.Y);
_formattedText.Draw(context.Batch, TextAlign.Left, bounds, context.View, textColor, false, opacity);
if (!IsKeyboardFocused)
{
// Skip cursor rendering if the widget doesnt have the focus
return;
}
var now = DateTime.Now;
if ((now - _lastBlinkStamp).TotalMilliseconds >= BlinkIntervalInMs)
{
_cursorOn = !_cursorOn;
_lastBlinkStamp = now;
}
if (Enabled && _cursorOn && Cursor != null)
{
p = GetRenderPositionByIndex(CursorPosition);
p.X -= _internalScrolling.X;
p.Y -= _internalScrolling.Y;
context.Draw(Cursor,
new Rectangle(p.X, p.Y,
Cursor.Size.X,
CrossEngineStuff.LineSpacing(_formattedText.Font)));
}
}
public virtual void UpdateLayout()
{
if (_layoutState == LayoutState.Normal)
{
return;
}
if (_layoutState == LayoutState.Invalid)
{
// Full rearrange
Point size;
if (HorizontalAlignment != HorizontalAlignment.Stretch ||
VerticalAlignment != VerticalAlignment.Stretch)
{
size = Measure(_containerBounds.Size());
}
else
{
size = _containerBounds.Size();
}
if (size.X > _containerBounds.Width)
{
size.X = _containerBounds.Width;
}
if (size.Y > _containerBounds.Height)
{
size.Y = _containerBounds.Height;
}
// Resolve possible conflict beetween Alignment set to Streth and Size explicitly set
var containerSize = _containerBounds.Size();
if (HorizontalAlignment == HorizontalAlignment.Stretch && Width != null && Width.Value < containerSize.X)
{
containerSize.X = Width.Value;
}
if (VerticalAlignment == VerticalAlignment.Stretch && Height != null && Height.Value < containerSize.Y)
{
containerSize.Y = Height.Value;
}
// Align
var controlBounds = LayoutUtils.Align(containerSize, size, HorizontalAlignment, VerticalAlignment, Parent == null);
controlBounds.Offset(_containerBounds.Location);
controlBounds.Offset(Left, Top);
_bounds = controlBounds;
_actualBounds = CalculateClientBounds(controlBounds);
Arrange();
CalculateRelativePositions();
}
else
{
// Only location
MoveChildren(new Point(Left - _lastLocationHint.X, Top - _lastLocationHint.Y));
}
_lastLocationHint = new Point(Left, Top);
_layoutState = LayoutState.Normal;
LayoutUpdated.Invoke(this);
}