public static void CalculateLines(ref WorldSpaceRect rect, float2 canvasScale, float styleSpaceMultiplier, ref DynamicBuffer <FontGlyphData> glyphData,
ref DynamicBuffer <TextData> textBuffer, NativeList <TextLineInfo> ret)
{
float maxLineWidth = rect.Max.x - rect.Min.x;
CurrentLineData currentLine = default;
for (int i = 0; i < textBuffer.Length; i++)
{
var character = textBuffer[i].Value;
if (character == '\n')
{
ret.Add(new TextLineInfo()
{
CharacterOffset = currentLine.CharacterOffset,
LineWidth = currentLine.LineWidth,
});
currentLine.CharacterOffset = i + 1;
currentLine.LineWidth = 0.0f;
currentLine.LineWordIndex = 0;
currentLine.WordCharacterCount = 0;
currentLine.WordWidth = 0.0f;
continue;
}
if (character == ' ')
{
currentLine.LineWordIndex++;
currentLine.WordCharacterCount = -1;
currentLine.WordWidth = 0.0f;
}
if (GetGlyph(character, ref glyphData, out var ch))
{
if (((ch.Metrics.width * styleSpaceMultiplier *
canvasScale.x) < rect.Width))
{
currentLine.WordCharacterCount++;
float characterWidth = ch.Metrics.horizontalAdvance * styleSpaceMultiplier *
canvasScale.x;
currentLine.LineWidth += characterWidth;
currentLine.WordWidth += characterWidth;
if (currentLine.LineWidth > maxLineWidth)
{
if (currentLine.LineWordIndex != 0)
{
ret.Add(new TextLineInfo()
{
CharacterOffset = currentLine.CharacterOffset,
LineWidth = currentLine.LineWidth - currentLine.WordWidth,
});
currentLine.CharacterOffset = i - currentLine.WordCharacterCount + 1;
currentLine.LineWidth = 0.0f;
currentLine.WordWidth = 0.0f;
i = i - currentLine.WordCharacterCount + 1;
currentLine.LineWordIndex = 0;
currentLine.WordCharacterCount = 0;
}
else
{
ret.Add(new TextLineInfo()
{
CharacterOffset = currentLine.CharacterOffset,
LineWidth = currentLine.LineWidth,
});
currentLine.CharacterOffset = i;
currentLine.LineWidth = 0.0f;
currentLine.WordWidth = 0.0f;
currentLine.LineWordIndex = 0;
currentLine.WordCharacterCount = 0;
}
}
continue;
}
ret.Add(new TextLineInfo()
{
CharacterOffset = currentLine.CharacterOffset,
LineWidth = currentLine.LineWidth,
});
currentLine.CharacterOffset = i;
currentLine.LineWidth = 0.0f;
currentLine.WordWidth = 0.0f;
currentLine.LineWordIndex = 0;
currentLine.WordCharacterCount = 0;
}
}
ret.Add(new TextLineInfo()
{
CharacterOffset = currentLine.CharacterOffset, LineWidth = currentLine.LineWidth
});
}
public static void CalculateLines(
LocalRectTransform renderBounds,
float2 canvasScale,
float styleSpaceMultiplier,
DynamicBuffer <FontGlyph> glyphData,
TextData textData,
DynamicBuffer <TextLine> ret)
{
var maxLineWidth = renderBounds.Value.Size.x; //rect.Max.x - rect.Min.x;
CurrentLineData currentLine = default;
for (int i = 0; i < textData.Value.LengthInBytes; i++)
{
var character = textData.Value.GetChar(i);
if (character == '\n')
{
ret.Add(new TextLine {
CharacterOffset = currentLine.CharacterOffset,
LineWidth = currentLine.LineWidth,
});
currentLine.CharacterOffset = i + 1;
currentLine.LineWidth = 0.0f;
currentLine.LineWordIndex = 0;
currentLine.WordCharacterCount = 0;
currentLine.WordWidth = 0.0f;
continue;
}
if (character == ' ')
{
currentLine.LineWordIndex++;
currentLine.WordCharacterCount = -1;
currentLine.WordWidth = 0.0f;
}
if (GetGlyph(character, glyphData, out var ch))
{
if ((ch.Metrics.width * styleSpaceMultiplier * canvasScale.x) < renderBounds.Value.Size.x)
{
currentLine.WordCharacterCount++;
float characterWidth = ch.Metrics.horizontalAdvance * styleSpaceMultiplier *
canvasScale.x;
currentLine.LineWidth += characterWidth;
currentLine.WordWidth += characterWidth;
if (currentLine.LineWidth > maxLineWidth)
{
if (currentLine.LineWordIndex != 0)
{
ret.Add(new TextLine {
CharacterOffset = currentLine.CharacterOffset,
LineWidth = currentLine.LineWidth - currentLine.WordWidth,
});
currentLine.CharacterOffset = i - currentLine.WordCharacterCount + 1;
currentLine.LineWidth = 0.0f;
currentLine.WordWidth = 0.0f;
i = i - currentLine.WordCharacterCount + 1;
currentLine.LineWordIndex = 0;
currentLine.WordCharacterCount = 0;
}
else
{
ret.Add(new TextLine {
CharacterOffset = currentLine.CharacterOffset,
LineWidth = currentLine.LineWidth,
});
currentLine.CharacterOffset = i;
currentLine.LineWidth = 0.0f;
currentLine.WordWidth = 0.0f;
currentLine.LineWordIndex = 0;
currentLine.WordCharacterCount = 0;
}
}
continue;
}
ret.Add(new TextLine {
CharacterOffset = currentLine.CharacterOffset,
LineWidth = currentLine.LineWidth,
});
currentLine.CharacterOffset = i;
currentLine.LineWidth = 0.0f;
currentLine.WordWidth = 0.0f;
currentLine.LineWordIndex = 0;
currentLine.WordCharacterCount = 0;
}
}
ret.Add(new TextLine {
CharacterOffset = currentLine.CharacterOffset,
LineWidth = currentLine.LineWidth
});
}
