public static bool IsSpecialText(string text)
{
if (!TextBoxWrapPanel.IsWhitespace(text) && !TextBoxWrapPanel.IsTab(text) && (!TextBoxWrapPanel.IsLineFeed(text) && !TextBoxWrapPanel.IsCarriageReturn(text)) && !(text == Environment.NewLine))
{
return(TextBoxWrapPanel.ContainsNewLine(text));
}
return(true);
}
public static bool IsTabOrWhitespace(string text)
{
if (!TextBoxWrapPanel.IsTab(text))
{
return(TextBoxWrapPanel.IsWhitespace(text));
}
return(true);
}
public static Size MeasureText(string text, Font font)
{
using (Graphics graphics = Graphics.FromHwnd(IntPtr.Zero))
{
graphics.TextRenderingHint = TextRenderingHint.SystemDefault;
Size size = TextRenderer.MeasureText((IDeviceContext)graphics, text, font, Size.Empty, TextFormatFlags.NoClipping | TextFormatFlags.NoPrefix | TextFormatFlags.SingleLine | TextFormatFlags.PreserveGraphicsClipping | TextFormatFlags.PreserveGraphicsTranslateTransform | TextFormatFlags.NoPadding);
if (TextBoxWrapPanel.IsTab(text))
{
size.Width = RadGdiGraphics.GetTextMetric(font).aveCharWidth * 4;
}
return(size);
}
}
protected virtual SizeF ArrangeWithLeftAlignment(SizeF finalSize)
{
RectangleF clientRectangle = this.GetClientRectangle(finalSize);
float x = clientRectangle.X;
float y = clientRectangle.Y;
foreach (LineInfo line in (ReadOnlyCollection <LineInfo>) this.lines)
{
ITextBlock startBlock = line.StartBlock;
ITextBlock endBlock = line.EndBlock;
int index = startBlock.Index;
if (TextBoxWrapPanel.IsWhitespace(startBlock.Text) && !TextBoxWrapPanel.IsTab(startBlock.Text) && this.lines.IndexOf(line) > 0)
{
++index;
}
for (; index <= endBlock.Index; ++index)
{
RadElement child = this.Children[index];
ITextBlock textBlock = child as ITextBlock;
child.InvalidateArrange();
PointF location = new PointF(x, y);
SizeF desiredSize = textBlock.DesiredSize;
float baselineOffset = this.GetBaselineOffset(line, textBlock);
location.Y += (float)Math.Ceiling((double)baselineOffset);
textBlock.Arrange(new RectangleF(location, desiredSize));
if (textBlock == endBlock)
{
float width = (float)(endBlock.ControlBoundingRectangle.Right - startBlock.ControlBoundingRectangle.X);
line.Size = new SizeF(width, line.Size.Height);
}
x += desiredSize.Width;
}
x = clientRectangle.X;
y += line.Size.Height + (float)this.lineSpacing;
}
return(finalSize);
}