private void IterateString(string text, STRVector position, bool draw, float scale, STRColor color, CoordinateType coordinateType, out StringMetrics metrics)
{
metrics = new StringMetrics();
STRVector startPosition = position;
float scalY = coordinateType == SpriteTextRenderer.CoordinateType.SNorm ? -1 : 1;
string visualText = NBidi.NBidi.LogicalToVisual(text);
int[] codePoints = Helpers.ConvertToCodePointArray(visualText);
foreach (int c in codePoints)
{
var charDesc = GetCharDescription(c);
var charMetrics = charDesc.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(charDesc.TableDescription.SRV, new STRVector(posX, posY), charMetrics.FullRectSize, STRVector.Zero, 0, charDesc.TexCoordsStart, charDesc.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;
}
}
}
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 == SpriteTextRenderer.CoordinateType.SNorm ? -1 : 1;
foreach (char c in text)
{
var charDesc = GetCharDescription(c);
var charMetrics = charDesc.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(charDesc.TableDescription.SRV, new Vector2(posX, posY), charMetrics.FullRectSize, charDesc.TexCoordsStart, charDesc.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;
}
}
}
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);
}