// If return false, nothing has been modified, which implies out of page boundary // The input of suggestedX is in the VisualRoot's cooridnate system private bool _GetNextLineGlyphs(ref FixedPosition fixedp, ref LogicalDirection edge, double suggestedX, LogicalDirection scanDir) { int count = 1; int pageIndex = fixedp.Page; bool moved = false; FixedNode[] fixedNodes = Container.FixedTextBuilder.GetNextLine(fixedp.Node, (scanDir == LogicalDirection.Forward), ref count); if (fixedNodes != null && fixedNodes.Length > 0) { FixedPage page = Container.FixedDocument.SyncGetPage(pageIndex, false); // This line contains multiple Glyhs. Scan backward // util we hit the first one whose OriginX is smaller // then suggestedX; if (Double.IsInfinity(suggestedX)) { suggestedX = 0; } Point topOfPage = new Point(suggestedX, 0); Point secondPoint = new Point(suggestedX, 1000); FixedNode hitNode = fixedNodes[0]; Glyphs hitGlyphs = null; double closestDistance = Double.MaxValue; double xoffset = 0; for (int i = fixedNodes.Length - 1; i >= 0; i--) { FixedNode node = fixedNodes[i]; Glyphs g = page.GetGlyphsElement(node); if (g != null) { GeneralTransform transform = page.TransformToDescendant(g); Point pt1 = topOfPage; Point pt2 = secondPoint; if (transform != null) { transform.TryTransform(pt1, out pt1); transform.TryTransform(pt2, out pt2); } double invSlope = (pt2.X - pt1.X) / (pt2.Y - pt1.Y); double xoff, distance; GlyphRun run = g.ToGlyphRun(); Rect box = run.ComputeAlignmentBox(); box.Offset(g.OriginX, g.OriginY); if (invSlope > 1000 || invSlope < -1000) { // special case for vertical text xoff = 0; distance = (pt1.Y > box.Y) ? (pt1.Y - box.Bottom) : (box.Y - pt1.Y); } else { double centerY = (box.Top + box.Bottom) / 2; xoff = pt1.X + invSlope * (centerY - pt1.Y); distance = (xoff > box.X) ? (xoff - box.Right) : (box.X - xoff); } if (distance < closestDistance) { closestDistance = distance; xoffset = xoff; hitNode = node; hitGlyphs = g; if (distance <= 0) { break; } } } } Debug.Assert(hitGlyphs != null); int charIdx; _GlyphRunHitTest(hitGlyphs, xoffset, out charIdx, out edge); fixedp = new FixedPosition(hitNode, charIdx); moved = true; } return(moved); }
// Token: 0x06002EF2 RID: 12018 RVA: 0x000D4194 File Offset: 0x000D2394 private bool _GetNextLineGlyphs(ref FixedPosition fixedp, ref LogicalDirection edge, double suggestedX, LogicalDirection scanDir) { int num = 1; int page = fixedp.Page; bool result = false; FixedNode[] nextLine = this.Container.FixedTextBuilder.GetNextLine(fixedp.Node, scanDir == LogicalDirection.Forward, ref num); if (nextLine != null && nextLine.Length != 0) { FixedPage fixedPage = this.Container.FixedDocument.SyncGetPage(page, false); if (double.IsInfinity(suggestedX)) { suggestedX = 0.0; } Point point = new Point(suggestedX, 0.0); Point point2 = new Point(suggestedX, 1000.0); FixedNode fixedNode = nextLine[0]; Glyphs g = null; double num2 = double.MaxValue; double xoffset = 0.0; for (int i = nextLine.Length - 1; i >= 0; i--) { FixedNode fixedNode2 = nextLine[i]; Glyphs glyphsElement = fixedPage.GetGlyphsElement(fixedNode2); if (glyphsElement != null) { GeneralTransform generalTransform = fixedPage.TransformToDescendant(glyphsElement); Point inPoint = point; Point inPoint2 = point2; if (generalTransform != null) { generalTransform.TryTransform(inPoint, out inPoint); generalTransform.TryTransform(inPoint2, out inPoint2); } double num3 = (inPoint2.X - inPoint.X) / (inPoint2.Y - inPoint.Y); GlyphRun glyphRun = glyphsElement.ToGlyphRun(); Rect rect = glyphRun.ComputeAlignmentBox(); rect.Offset(glyphsElement.OriginX, glyphsElement.OriginY); double num4; double num5; if (num3 > 1000.0 || num3 < -1000.0) { num4 = 0.0; num5 = ((inPoint.Y > rect.Y) ? (inPoint.Y - rect.Bottom) : (rect.Y - inPoint.Y)); } else { double num6 = (rect.Top + rect.Bottom) / 2.0; num4 = inPoint.X + num3 * (num6 - inPoint.Y); num5 = ((num4 > rect.X) ? (num4 - rect.Right) : (rect.X - num4)); } if (num5 < num2) { num2 = num5; xoffset = num4; fixedNode = fixedNode2; g = glyphsElement; if (num5 <= 0.0) { break; } } } } int offset; this._GlyphRunHitTest(g, xoffset, out offset, out edge); fixedp = new FixedPosition(fixedNode, offset); result = true; } return(result); }