private void IterateString(string text, Vector2 Position, bool Draw, float scale, Color4 Color, CoordinateType CoordinateType, out StringMetrics Metrics)
{
Metrics = new StringMetrics();
Vector2 StartPosition = Position;
float scalY = CoordinateType == CoordinateType.SNorm ? -1 : 1;
foreach (char c in text)
{
var CD = GetCharDescription(c);
var CharMetrics = CD.ToStringMetrics(Position, scale, scale * scalY);
if (Draw)
{
if (CharMetrics.FullRectSize.X != 0 && CharMetrics.FullRectSize.Y != 0)
{
float posY = Position.Y - scalY * CharMetrics.OverhangTop;
float posX = Position.X - CharMetrics.OverhangLeft;
Sprite.Draw(CD.TableDescription.SRV, new Vector2(posX, posY), CharMetrics.FullRectSize, CD.TexCoordsStart, CD.TexCoordsSize, Color, CoordinateType);
}
}
Metrics.Merge(CharMetrics);
Position.X += CharMetrics.Size.X;
//Break newlines
if (c == '\r')
{
Position.X = Metrics.TopLeft.X;
}
if (c == '\n')
{
Position.Y = Metrics.BottomRight.Y - CharMetrics.Size.Y / 2;
}
}
}
/// <summary>
/// Draws the string in the specified coordinate system aligned in the given rectangle. The text is not clipped or wrapped.
/// </summary>
/// <param name="text">The text to draw</param>
/// <param name="Rect">The rectangle in which to align the text</param>
/// <param name="Align">Alignment of text in rectangle</param>
/// <param name="RealFontSize">The real font size in the chosen coordinate system</param>
/// <param name="Color">The color in which to draw the text</param>
/// <param name="CoordinateType">The chosen coordinate system</param>
/// <returns>The StringMetrics for the rendered text</returns>
public StringMetrics DrawString(string text, RectangleF Rect, TextAlignment Align, float RealFontSize, Color4 Color, CoordinateType CoordinateType)
{
//If text is aligned top and left, no adjustment has to be made
if (Align.HasFlag(TextAlignment.Top) && Align.HasFlag(TextAlignment.Left))
{
return(DrawString(text, new Vector2(Rect.X, Rect.Y), RealFontSize, Color, CoordinateType));
}
text = text.Replace("\r", "");
var RawTextMetrics = MeasureString(text, RealFontSize, CoordinateType);
var mMetrics = MeasureString("m", RealFontSize, CoordinateType);
float startY;
if (Align.HasFlag(TextAlignment.Top))
{
startY = Rect.Top;
}
else if (Align.HasFlag(TextAlignment.VerticalCenter))
{
startY = Rect.Top + Rect.Height / 2 - RawTextMetrics.Size.Y / 2;
}
else //Bottom
{
startY = Rect.Bottom - RawTextMetrics.Size.Y;
}
var TotalMetrics = new StringMetrics();
//break text into lines
var lines = text.Split('\n');
foreach (var line in lines)
{
float startX;
if (Align.HasFlag(TextAlignment.Left))
{
startX = Rect.X;
}
else
{
var lineMetrics = MeasureString(line, RealFontSize, CoordinateType);
if (Align.HasFlag(TextAlignment.HorizontalCenter))
{
startX = Rect.X + Rect.Width / 2 - lineMetrics.Size.X / 2;
}
else //Right
{
startX = Rect.Right - lineMetrics.Size.X;
}
}
var lineMetrics2 = DrawString(line, new Vector2(startX, startY), RealFontSize, Color, CoordinateType);
float lineHeight;
if (mMetrics.Size.Y < 0)
{
lineHeight = Math.Min(lineMetrics2.Size.Y, mMetrics.Size.Y);
}
else
{
lineHeight = Math.Max(lineMetrics2.Size.Y, mMetrics.Size.Y);
}
startY += lineHeight;
TotalMetrics.Merge(lineMetrics2);
}
return(TotalMetrics);
}