/// <summary>
/// Draws a billboard in world space facing the +Z direction of the matrix given. Units in meters,
/// matrix transform notwithstanding. Dont forget to compensate for perspective scaling!
/// </summary
public void Draw(ref CroppedBox box, ref MatrixD matrix)
{
ContainmentType containment = ContainmentType.Contains;
if (box.mask != null)
{
box.mask.Value.Contains(ref box.bounds, out containment);
}
if (containment != ContainmentType.Disjoint)
{
if (updateMatFit && matFrame.Material != Material.Default)
{
Vector2 boxSize = box.bounds.Size;
minBoard.texCoords = matFrame.GetMaterialAlignment(boxSize.X / boxSize.Y);
updateMatFit = false;
}
if (containment == ContainmentType.Contains)
{
minBoard.Draw(ref box, ref matrix);
}
else if (containment == ContainmentType.Intersects && matFrame.Material == Material.Default)
{
minBoard.DrawCropped(ref box, ref matrix);
}
else
{
minBoard.DrawCroppedTex(ref box, ref matrix);
}
}
}
/// <summary>
/// Draws the text board in world space on the XY plane of the matrix, facing in the +Z
/// direction.
/// </summary>
public void Draw(BoundingBox2 box, BoundingBox2 mask, MatrixD[] matrix)
{
ContainmentType containment;
mask.Contains(ref box, out containment);
if (containment != ContainmentType.Disjoint)
{
if (offsetsAreStale)
{
UpdateOffsets();
}
else if (lineRangeIsStale || (endLine == -1 && lines.Count > 0))
{
UpdateLineRange();
}
if (AutoResize)
{
_textOffset = Vector2.Zero;
}
if (updateEvent && (eventTimer.ElapsedTicks / TimeSpan.TicksPerMillisecond) > 500)
{
TextChanged?.Invoke();
eventTimer.Restart();
updateEvent = false;
}
BoundingBox2 textMask = box.Intersect(mask);
Vector2 offset = box.Center + _textOffset * Scale;
IReadOnlyList <Line> lineList = lines.PooledLines;
CroppedBox bb = default(CroppedBox);
bb.mask = textMask;
// Draw glyphs
for (int ln = startLine; ln <= endLine && ln < lines.Count; ln++)
{
Line line = lineList[ln];
for (int ch = 0; ch < line.Count; ch++)
{
GlyphLocData locData = line.LocData[ch];
Vector2 halfSize = locData.bbSize * Scale * .5f,
pos = offset + locData.bbOffset * Scale;
bb.bounds = new BoundingBox2(pos - halfSize, pos + halfSize);
bb.mask.Value.Contains(ref bb.bounds, out containment);
if (containment == ContainmentType.Contains)
{
line.GlyphBoards[ch].Draw(ref bb, ref matrix[0]);
}
else if (containment != ContainmentType.Disjoint)
{
line.GlyphBoards[ch].DrawCroppedTex(ref bb, ref matrix[0]);
}
}
}
QuadBoard underlineBoard = QuadBoard.Default;
// Draw underlines
for (int n = 0; n < underlines.Count; n++)
{
Vector2 halfSize = underlines[n].size * Scale * .5f,
pos = offset + underlines[n].offset * Scale;
bb.bounds = new BoundingBox2(pos - halfSize, pos + halfSize);
bb.mask.Value.Contains(ref bb.bounds, out containment);
underlineBoard.bbColor = underlines[n].color;
if (containment == ContainmentType.Contains)
{
underlineBoard.Draw(ref bb, ref matrix[0]);
}
else if (containment != ContainmentType.Disjoint)
{
underlineBoard.DrawCropped(ref bb, ref matrix[0]);
}
}
}
}
