// Do a range-painting operation (actual painting, or measuring, which involve much of the same work
// except for the innermost step) for a given range selection.
private void DoRangePaintingOp(RangeSelection range, IVwGraphics vg, PaintTransform ptrans,
RangePaintingOp op)
{
int ichMin = range.Start.RenderParaPosition; // appropriate if the selection starts in THIS paragraph
int ichLim = range.End.RenderParaPosition; // appropriate if the selection ends in THIS paragraph
if (range.Start.Para != this)
{
ichMin = 0; // It presumably starts before this paragraph, or it would not have been asked to draw it
}
if (range.End.Para != this)
{
ichLim = Source.Length; // It presumably ends after this paragraph, or it would not have been asked to draw it.
}
DoRangePaintingOp(ichMin, ichLim, vg, ptrans, op);
}
// Do a range-painting operation (actual painting, or measuring, which involve much of the same work
// except for the innermost step) for a given range of rendered characters.
// This may be called for an actual range, or for an insertion point rendered as a substitute prompt.
private void DoRangePaintingOp(int ichMin, int ichLim, IVwGraphics vg, PaintTransform ptrans, RangePaintingOp op)
{
if (Lines.Count == 0)
return;
PaintTransform childTrans = ptrans.PaintTransformOffsetBy(Left, Top);
var previousBottom = childTrans.ToPaintY(Lines[0].Top);
for (int i = 0; i < Lines.Count; i++)
{
var line = Lines[i];
var bottom = line.Bottom;
if (i != Lines.Count - 1)
bottom = (Lines[i + 1].Top + bottom) / 2; // split the difference between this line and the next
bottom = childTrans.ToPaintY(bottom);
foreach (var box in line.Boxes)
{
op(box, vg, childTrans, previousBottom, bottom, ichMin, ichLim);
}
previousBottom = bottom;
}
}
// Do a range-painting operation (actual painting, or measuring, which involve much of the same work
// except for the innermost step) for a given range selection.
private void DoRangePaintingOp(RangeSelection range, IVwGraphics vg, PaintTransform ptrans,
RangePaintingOp op)
{
int ichMin = range.Start.RenderParaPosition; // appropriate if the selection starts in THIS paragraph
int ichLim = range.End.RenderParaPosition; // appropriate if the selection ends in THIS paragraph
if (range.Start.Para != this)
ichMin = 0; // It presumably starts before this paragraph, or it would not have been asked to draw it
if (range.End.Para != this)
ichLim = Source.Length; // It presumably ends after this paragraph, or it would not have been asked to draw it.
DoRangePaintingOp(ichMin, ichLim, vg, ptrans, op);
}
// Do a range-painting operation (actual painting, or measuring, which involve much of the same work
// except for the innermost step) for a given range of rendered characters.
// This may be called for an actual range, or for an insertion point rendered as a substitute prompt.
private void DoRangePaintingOp(int ichMin, int ichLim, IVwGraphics vg, PaintTransform ptrans, RangePaintingOp op)
{
if (Lines.Count == 0)
{
return;
}
PaintTransform childTrans = ptrans.PaintTransformOffsetBy(Left, Top);
var previousBottom = childTrans.ToPaintY(Lines[0].Top);
for (int i = 0; i < Lines.Count; i++)
{
var line = Lines[i];
var bottom = line.Bottom;
if (i != Lines.Count - 1)
{
bottom = (Lines[i + 1].Top + bottom) / 2; // split the difference between this line and the next
}
bottom = childTrans.ToPaintY(bottom);
foreach (var box in line.Boxes)
{
op(box, vg, childTrans, previousBottom, bottom, ichMin, ichLim);
}
previousBottom = bottom;
}
}