//this is rather complex :-)
private void Build(Vector2 pixelArea)
{
if (font == null)
{
throw new InvalidOperationException("TextElementRect.Font");
}
sprite.SetTextureAndClear(font.textureValue);
Vector2 position = new Vector2();
bool flag = true;
int index;
int periodIndex;
int beginWord = 0;
int beginLine = 0;
int beginWordIndex = 0;
int beginWordLength = 0;
int spriceCount = 0;
int lastIndex = -1;
float beginX = 0;
if (!font.TryGetCharacterIndex('.', out periodIndex))
{
periodIndex = -1;
}
if (textAlign == TextHorizontalAlignment.Justified && spaces == null)
{
spaces = new List <int>();
}
StringBuilder text = this.text.value;
uint insertedElementIndex = children.ResetInsertIndex();
uint lineInsertedElementCount = 0;
if (text.Length > 0 && pixelArea.X > 1)
{
for (int i = 0; i < text.Length; i++)
{
if (i == insertedElementIndex)
{
float width;
//update the inserted element
children.SetInsertedElementLayout(ref position, out width);
position.X += width;
insertedElementIndex = children.GetNextInsertedIndex();
}
char c = text[i];
switch (c)
{
case '\r':
break;
case '\n':
if (textAlign == TextHorizontalAlignment.Right ||
textAlign == TextHorizontalAlignment.Centre)
{
Vector2 delta = new Vector2(pixelArea.X - position.X, 0);
if (textAlign == TextHorizontalAlignment.Centre)
{
delta.X *= 0.5f;
}
delta.X = (float)Math.Floor(delta.X);
for (int n = beginLine; n < sprite.InstanceCount; n++)
{
sprite.MoveSprite(n, ref delta);
}
children.MoveRange(ref delta, lineInsertedElementCount);
}
if (textAlign == TextHorizontalAlignment.Justified)
{
spaces.Clear();
}
flag = true;
position.X = 0;
position.Y -= font.lineSpacingF;
beginWord = -1;
beginX = 0;
beginLine = sprite.InstanceCount;
lineInsertedElementCount = children.GetInsertedCount();
break;
case '\t':
beginWord = -1;
if (font.TryGetCharacterIndex(' ', out index))
{
Vector3 kerning = font.kerning[index];
float width = ((kerning.Y + kerning.Z)) * 4;
position.X = (float)(Math.Floor(position.X / width) + 1) * width;
if (textAlign == TextHorizontalAlignment.Justified)
{
spaces.Add(sprite.InstanceCount);
}
}
break;
default:
if (c == ' ' && textAlign == TextHorizontalAlignment.Justified)
{
spaces.Add(sprite.InstanceCount);
}
if (beginWord == -1 || !(char.IsLetterOrDigit(c) || c == '_'))
{
beginWord = lastIndex;
beginWordIndex = i;
beginWordLength = spriceCount;
beginX = position.X;
}
if (font.TryGetCharacterIndex(c, out index))
{
Vector3 kerning = font.kerning[index];
if (flag)
{
kerning.X = Math.Max(kerning.X, 0f);
}
position.X += (kerning.X);
Vector4 crop = font.croppingDataV4[index];
if (!char.IsWhiteSpace(c) && position.X + font.glyphWidth[index] > pixelArea.X)
{
//wrap to new line
bool tooLong = false;
if (beginWord != -1)
{
//find out how long this word is...
float length = 0;
for (int n = i; n < text.Length; n++)
{
if (!(char.IsLetterOrDigit(text[n]) || text[n] == '_'))
{
break;
}
int nindex = 0;
if (font.TryGetCharacterIndex(text[n], out nindex))
{
length += font.glyphWidth[nindex];
if ((position.X - beginX + length) > pixelArea.X)
{
//word is too long to be broken onto multiple lines
tooLong = true;
break;
}
}
}
if (!tooLong)
{
sprite.RemoveLastSprite(spriceCount - beginWordLength);
i = beginWordIndex;
spriceCount = beginWordLength;
position.X = beginX;
if (textAlign == TextHorizontalAlignment.Justified &&
spaces.Count > 0)
{
spaces.RemoveAt(spaces.Count - 1);
}
}
}
if (textAlign == TextHorizontalAlignment.Right ||
textAlign == TextHorizontalAlignment.Centre)
{
Vector2 delta = new Vector2(pixelArea.X - position.X, 0);
if (textAlign == TextHorizontalAlignment.Centre)
{
delta.X *= 0.5f;
}
delta.X = (float)Math.Floor(delta.X);
delta.Y = (float)Math.Floor(delta.Y);
for (int n = beginLine; n < sprite.InstanceCount; n++)
{
sprite.MoveSprite(n, ref delta);
}
children.MoveRange(ref delta, lineInsertedElementCount);
}
if (textAlign == TextHorizontalAlignment.Justified && spaces.Count > 0)
{
float gap = (pixelArea.X - position.X) / (spaces.Count);
float deltaf = 0;
Vector2 delta = new Vector2(0, 0);
int spaceIndex;
if (font.TryGetCharacterIndex(' ', out spaceIndex))
{
Vector3 spaceSize = font.kerning[spaceIndex];
if (gap > ((spaceSize.Y + spaceSize.Z)) * 40)
{
gap = 0;
}
}
spaceIndex = 0;
for (int n = beginLine; n < sprite.InstanceCount; n++)
{
if (spaceIndex != spaces.Count &&
n == spaces[spaceIndex])
{
spaceIndex++;
deltaf += gap;
delta.X = (float)Math.Floor(deltaf);
}
sprite.MoveSprite(n, ref delta);
children.MoveRangeUptoIndex(ref delta, ref lineInsertedElementCount, n);
}
children.MoveRangeUptoIndex(ref delta, ref lineInsertedElementCount, i + 1);
spaces.Clear();
}
beginLine = sprite.InstanceCount;
position.X = Math.Max(kerning.X, 0f);
position.Y -= font.lineSpacingF;
beginX = 0;
if (!char.IsWhiteSpace(text[i]))
{
i--;
}
lineInsertedElementCount = children.GetInsertedCount();
continue;
}
Vector2 pos = position;
if (!sizeToVertical && periodIndex != -1 &&
-position.Y > pixelArea.Y - font.lineSpacingF * 2 &&
position.X + font.glyphWidth[index] > pixelArea.X - 3 * font.glyphWidth[periodIndex])
{
if (pixelArea.X > 3 * font.glyphWidth[periodIndex])
{
//add an elipsis ...
crop = font.croppingDataV4[periodIndex];
kerning = font.kerning[periodIndex];
pos.Y -= crop.Y + font.glyphSize[periodIndex].Y;
pos.X += crop.X;
for (int n = 0; n < 3; n++)
{
sprite.AddSprite(ref pos, ref font.glyphSize[periodIndex], ref colour, ref font.glyphDataV4[periodIndex]);
spriceCount++;
pos.X += kerning.X + kerning.Y + kerning.Z;
}
i = text.Length;
break;
}
}
pos.X += crop.X;
pos.Y -= crop.Y + font.glyphSize[index].Y;
lastIndex = sprite.AddSprite(ref pos, ref font.glyphSize[index], ref colour, ref font.glyphDataV4[index]);
spriceCount++;
flag = false;
position.X += ((kerning.Y + kerning.Z));
}
break;
}
}
}
if (textAlign == TextHorizontalAlignment.Right ||
textAlign == TextHorizontalAlignment.Centre)
{
Vector2 delta = new Vector2(pixelArea.X - position.X, 0);
if (textAlign == TextHorizontalAlignment.Centre)
{
delta.X = (float)Math.Floor(delta.X * 0.5f);
}
delta.X = (float)Math.Floor(delta.X);
for (int n = beginLine; n < sprite.InstanceCount; n++)
{
sprite.MoveSprite(n, ref delta);
}
children.MoveRange(ref delta, lineInsertedElementCount);
}
if (sizeToVertical)
{
this.Size = new Vector2(this.Size.X, font.lineSpacingF - position.Y);
}
else
{
if (textVAlign == VerticalAlignment.Centre ||
textVAlign == VerticalAlignment.Bottom)
{
float height = pixelArea.Y - (font.lineSpacingF - position.Y);
if (height > 0)
{
if (textVAlign == VerticalAlignment.Centre)
{
height *= 0.5f;
}
height = (float)Math.Floor(height);
Vector2 delta = new Vector2(0, -height);
delta.Y = (float)Math.Floor(delta.Y);
for (int n = 0; n < sprite.InstanceCount; n++)
{
sprite.MoveSprite(n, ref delta);
}
children.MoveRange(ref delta, 0);
}
}
}
}
private void Build()
{
if (this.font == null)
{
throw new InvalidOperationException("TextElement.Font == null");
}
sprite.SetTextureAndClear(font.textureValue);
Vector2 position = new Vector2();
bool flag = true;
int index;
uint insertedElementIndex = children.ResetInsertIndex();
StringBuilder text = this.text.value;
if (text.Length > 0)
{
for (int i = 0; i < text.Length; i++)
{
if (i == insertedElementIndex)
{
float width;
//update the inserted element
children.SetInsertedElementLayout(ref position, out width);
position.X += width;
insertedElementIndex = children.GetNextInsertedIndex();
}
char c = text[i];
switch (c)
{
case '\r':
break;
case '\n':
flag = true;
position.X = 0;
position.Y -= font.lineSpacingF;
break;
case '\t':
if (font.TryGetCharacterIndex(' ', out index))
{
Vector3 kerning = font.kerning[index];
float width = ((kerning.Y + kerning.Z)) * 4;
position.X = (float)(Math.Floor(position.X / width) + 1) * width;
}
break;
default:
if (font.TryGetCharacterIndex(c, out index))
{
Vector3 kerning = font.kerning[index];
if (flag)
{
kerning.X = Math.Max(kerning.X, 0f);
}
position.X += (kerning.X);
Vector4 crop = font.croppingDataV4[index];
Vector2 pos = position;
pos.X += crop.X;
pos.Y -= crop.Y + font.glyphSize[index].Y;
sprite.AddSprite(ref pos, ref font.glyphSize[index], ref colour, ref font.glyphDataV4[index]);
flag = false;
position.X += ((kerning.Y + kerning.Z));
}
break;
}
}
}
}
