private void CommitWord(ref Line line, /*BoxGroup cachedBoxes, List<Box> wordBoxes, ref RGFloat cachedBoxesSize,*/
RelayoutSession rs, ref BoxFontInfo fontInfo)
{
bool newline = false;
if (this.rt.TextWrap != TextWrapMode.NoWrap)
{
var angle = this.rt.RotationAngle;
if (angle == 0)
{
newline = rs.currentLoc.X + rs.cacheBoxesWidth > rs.bounds.Width;
}
else
{
var w = rs.cacheBoxesWidth;
var h = rs.cacheBoxesMaxHeight;
var s = rs.s;
var c = rs.c;
var leftTop = rs.currentLoc;
var rightTop = new Point(leftTop.X + w * c, leftTop.Y + w * s);
var leftBottom = new Point(leftTop.X - h * s, leftTop.Y + h * c);
var rightBottom = new Point(rightTop.X - h * s, rightTop.Y + h * c);
if (angle > 0)
{
var maxY = Math.Max(leftTop.Y, Math.Max(rightTop.Y, Math.Max(leftBottom.Y, rightBottom.Y)));
var maxX = Math.Max(leftTop.X, Math.Max(rightTop.X, Math.Max(leftBottom.X, rightBottom.X)));
newline = (maxX >= rs.bounds.Width || maxY > rs.bounds.Height);
}
else // angle < 0
{
var minY = Math.Min(leftTop.Y, Math.Min(rightTop.Y, Math.Min(leftBottom.Y, rightBottom.Y)));
var maxX = Math.Max(leftTop.X, Math.Max(rightTop.X, Math.Max(leftBottom.X, rightBottom.X)));
newline = (maxX > rs.bounds.Width || minY < -rs.bounds.Height);
}
}
}
if (newline)
{
CommitLine(rs, line);
line = new Line(rs.currentLoc.Y);
}
if (line.Ascent < rs.maxBaseline)
{
line.Ascent = rs.maxBaseline;
}
if (line.Height < rs.maxHeight)
{
line.Height = rs.maxHeight;
}
foreach (var cb in rs.cacheBoxes)
{
if (rt.RotationAngle == 0)
{
cb.leftTop.X = rs.currentLoc.X;
cb.rightTop.X = cb.leftTop.X + cb.Width;
rs.currentLoc.X += cb.Width;
}
else
{
cb.leftTop = rs.currentLoc;
rs.currentLoc.X += (float)(cb.Width * rs.c);
rs.currentLoc.Y += (float)(cb.Width * rs.s);
}
line.boxes.Add(cb);
}
if (newline)
{
rs.maxBaseline = fontInfo.Ascent;
rs.maxHeight = fontInfo.LineHeight;
}
rs.CacheBoxesReset();
}
private void CommitLine(RelayoutSession rs, Line line)
{
var angle = this.rt.RotationAngle;
#region Last Line Spacing
// if there is last line, plus the line spacing height
if (lastLine != null)
{
RGFloat lineSpacing = lastLine.Height * (this.LineHeight - 1);
if (angle == 0)
{
rs.startLoc.Y += lineSpacing;
//line.leftTop.Y += lineSpacing;
}
else
{
foreach (var box in line.boxes)
{
var a = (lineSpacing) * rs.s;
var b = (lineSpacing) * rs.c / Math.Tan(rs.d);
box.leftTop.X -= (float)(a + b);
}
}
}
#endregion // Last Line Spacing
this.lines.Add(line);
#region Horizontal Relayout Boxes
var lineWidth = line.Width;
RGFloat horAlignOffset = 0;
var halign = this.HorizontalAlign;
if (halign == ReoGridHorAlign.General)
{
halign = this.rt.DefaultHorizontalAlignment;
}
switch (halign)
{
default:
case ReoGridHorAlign.Left:
horAlignOffset = 0;
break;
case ReoGridHorAlign.Center:
horAlignOffset = (rs.bounds.Width - lineWidth) / 2 - 3;
break;
case ReoGridHorAlign.Right:
horAlignOffset = (rs.bounds.Width - lineWidth) - 4;
break;
}
foreach (var b in line.boxes)
{
var r = b.Run;
if (this.rt.RotationAngle == 0)
{
if ((r.FontStyles & FontStyles.Superscrit) == FontStyles.Superscrit)
{
b.leftTop.Y = line.Top - b.FontInfo.LineHeight / 2;
}
else if ((r.FontStyles & FontStyles.Subscript) == FontStyles.Subscript)
{
b.leftTop.Y = line.Top + line.Height - b.FontInfo.LineHeight / 2;
}
else
{
b.leftTop.Y = line.Top - b.FontInfo.LineHeight + line.Ascent;
}
}
else
{
// TODO
//b.leftTop.X = line.leftTop.Y - b.FontInfo.LineHeight + line.Ascent;
}
b.leftTop.X += horAlignOffset;
}
#endregion // Horizontal Relayout Boxes
var lineHeight = line.Height;
if (angle == 0)
{
rs.startLoc.Y += lineHeight;
if (rs.measuredSize.Width < line.Width)
{
rs.measuredSize.Width = line.Width;
}
rs.measuredSize.Height = rs.startLoc.Y;
}
else
{
var a = (lineHeight) * rs.s;
var b = (lineHeight) * rs.c / Math.Tan(rs.d);
rs.startLoc.X -= (float)(a + b);
rs.measuredSize.Width = 200;
rs.measuredSize.Height = 200;
}
rs.currentLoc = rs.startLoc;
lastLine = line;
}
internal void UpdateText(RelayoutSession rs)
{
this.lines.Clear();
this.lastLine = null;
if (this.Runs != null && this.Runs.Count > 0 && rs.bounds.Width > 0)
{
rs.ParagraphReset();
var line = new Line(rs.currentLoc.Y);
//line.Top = rs.currentLoc.Y;
Run prevRun = null, nextRun = null;
BoxFontInfo curFontInfo = null;
for (int ri = 0; ri < this.Runs.Count; ri++)
{
var r = this.Runs[ri];
if (curFontInfo != r.FontInfo)
{
curFontInfo = r.FontInfo;
if (rs.maxBaseline < curFontInfo.Ascent)
{
rs.maxBaseline = curFontInfo.Ascent;
}
if (rs.maxHeight < curFontInfo.LineHeight)
{
rs.maxHeight = curFontInfo.LineHeight;
}
}
//prevRun = ri > 0 ? p.Runs[ri - 1] : null;
nextRun = ri < this.Runs.Count - 1 ? this.Runs[ri + 1] : null;
if (!string.IsNullOrEmpty(r.Text))
{
for (int i = 0; i < r.Text.Length; i++)
{
char c = r.Text[i]; //.ToString();
#if WINFORM || ANDROID
var b = new Box(r, c.ToString(), curFontInfo, r.TextSizes[i], r.FontInfo.LineHeight);
#elif WPF
var b = new Box(r, c.ToString(), curFontInfo, r.GlyphIndexes[i], r.TextSizes[i]);
#endif // WPF
rs.AddCachedBox(b);
if (CJKHelper.IsBreakable(this, prevRun, nextRun, r, i))
{
this.CommitWord(ref line, rs, ref curFontInfo);
}
}
}
prevRun = r;
}
if (rs.cacheBoxesWidth > 0)
{
this.CommitWord(ref line, rs, ref curFontInfo);
}
if (line.boxes.Count > 0)
{
this.CommitLine(rs, line);
}
}
}
