/// <summary>
/// Renders a single line of text
/// </summary>
private void renderLine(LineRenderInfo line, Stack <Color32> colors, Vector3 position, dfRenderData destination)
{
position.x += calculateLineAlignment(line);
for (int i = line.startOffset; i <= line.endOffset; i++)
{
var token = tokens[i];
var type = token.TokenType;
if (type == dfMarkupTokenType.Text)
{
renderText(token, colors.Peek(), position, destination);
}
else if (type == dfMarkupTokenType.StartTag)
{
if (token.Matches("sprite") && SpriteAtlas != null && SpriteBuffer != null)
{
renderSprite(token, colors.Peek(), position, SpriteBuffer);
}
else if (token.Matches("color"))
{
colors.Push(parseColor(token));
}
}
else if (type == dfMarkupTokenType.EndTag)
{
if (token.Matches("color") && colors.Count > 1)
{
colors.Pop();
}
}
position.x += token.Width;
}
}
private void calculateLineSize(LineRenderInfo line)
{
var font = (dfDynamicFont)Font;
line.lineHeight = font.Baseline * TextScale;
var width = 0;
for (int i = line.startOffset; i <= line.endOffset; i++)
{
width += tokens[i].Width;
}
line.lineWidth = width;
}
public override void Release()
{
this.Reset();
this.tokens = null;
if (lines != null)
{
lines.Release();
lines = null;
}
LineRenderInfo.ResetPool();
this.BottomColor = (Color32?)null;
objectPool.Enqueue(this);
}
private int calculateLineAlignment(LineRenderInfo line)
{
var width = line.lineWidth;
if (TextAlign == TextAlignment.Left || width < 1)
{
return(0);
}
var x = 0f;
if (TextAlign == TextAlignment.Right)
{
x = MaxSize.x - width;
}
else
{
x = (MaxSize.x - width) * 0.5f;
}
return(Mathf.CeilToInt(Mathf.Max(0f, x)));
}
/// <summary>
/// Determine where each line of text starts. Assumes that the
/// tokens array is already populated and that the render size
/// of each token has already been determined.
/// </summary>
/// <returns></returns>
private dfList <LineRenderInfo> calculateLinebreaks()
{
try
{
//@Profiler.BeginSample( "Calculate line breaks" );
if (lines != null)
{
return(lines);
}
lines = dfList <LineRenderInfo> .Obtain();
var font = (dfDynamicFont)Font;
var lastBreak = 0;
var startIndex = 0;
var index = 0;
var lineWidth = 0;
var lineHeight = font.Baseline * TextScale;
while (index < tokens.Count && lines.Count * lineHeight <= MaxSize.y + lineHeight)
{
var token = tokens[index];
var type = token.TokenType;
if (type == dfMarkupTokenType.Newline)
{
lines.Add(LineRenderInfo.Obtain(startIndex, index));
startIndex = lastBreak = ++index;
lineWidth = 0;
continue;
}
var tokenWidth = Mathf.CeilToInt(token.Width);
var canWrap =
WordWrap &&
lastBreak > startIndex &&
(
type == dfMarkupTokenType.Text ||
(type == dfMarkupTokenType.StartTag && token.Matches("sprite"))
);
if (canWrap && lineWidth + tokenWidth >= MaxSize.x)
{
if (lastBreak > startIndex)
{
lines.Add(LineRenderInfo.Obtain(startIndex, lastBreak - 1));
startIndex = index = ++lastBreak;
lineWidth = 0;
}
else
{
lines.Add(LineRenderInfo.Obtain(startIndex, lastBreak - 1));
startIndex = lastBreak = ++index;
lineWidth = 0;
}
continue;
}
if (type == dfMarkupTokenType.Whitespace)
{
lastBreak = index;
}
lineWidth += tokenWidth;
index += 1;
}
if (startIndex < tokens.Count)
{
lines.Add(LineRenderInfo.Obtain(startIndex, tokens.Count - 1));
}
for (int i = 0; i < lines.Count; i++)
{
calculateLineSize(lines[i]);
}
return(lines);
}
finally
{
//@Profiler.EndSample();
}
}
/// <summary>
/// Renders a single line of text
/// </summary>
private void renderLine( LineRenderInfo line, Stack<Color32> colors, Vector3 position, dfRenderData destination )
{
position.x += calculateLineAlignment( line );
for( int i = line.startOffset; i <= line.endOffset; i++ )
{
var token = tokens[ i ];
var type = token.TokenType;
if( type == dfMarkupTokenType.Text )
{
renderText( token, colors.Peek(), position, destination );
}
else if( type == dfMarkupTokenType.StartTag )
{
if( token.Matches( "sprite" ) && SpriteAtlas != null && SpriteBuffer != null )
{
renderSprite( token, colors.Peek(), position, SpriteBuffer );
}
else if( token.Matches( "color" ) )
{
colors.Push( parseColor( token ) );
}
}
else if( type == dfMarkupTokenType.EndTag )
{
if( token.Matches( "color" ) && colors.Count > 1 )
{
colors.Pop();
}
}
position.x += token.Width;
}
}
private void calculateLineSize( LineRenderInfo line )
{
var font = (dfDynamicFont)Font;
line.lineHeight = font.Baseline * TextScale;
var width = 0;
for( int i = line.startOffset; i <= line.endOffset; i++ )
{
width += tokens[ i ].Width;
}
line.lineWidth = width;
}
private int calculateLineAlignment( LineRenderInfo line )
{
var width = line.lineWidth;
if( TextAlign == TextAlignment.Left || width < 1 )
return 0;
var x = 0f;
if( TextAlign == TextAlignment.Right )
{
x = MaxSize.x - width;
}
else
{
x = ( MaxSize.x - width ) * 0.5f;
}
return Mathf.CeilToInt( Mathf.Max( 0f, x ) );
}