Method renderAllLines

texteditor/render.go:355–415

renderAllLines displays all the visible lines on the screen, after PushBounds has already been called.

()

// renderAllLines displays all the visible lines on the screen,
// after PushBounds has already been called.
func (ed *Editor) renderAllLines() {
	ed.RenderStandardBox()
	pc := &ed.Scene.PaintContext
	bb := ed.renderBBox()
	pos := ed.renderStartPos()
	stln := -1
	edln := -1
	for ln := 0; ln < ed.NumLines; ln++ {
		if ln >= len(ed.offsets) || ln >= len(ed.renders) {
			break
		}
		lst := pos.Y + ed.offsets[ln]
		led := lst + math32.Max(ed.renders[ln].BBox.Size().Y, ed.lineHeight)
		if int(math32.Ceil(led)) < bb.Min.Y {
			continue
		}
		if int(math32.Floor(lst)) > bb.Max.Y {
			continue
		}
		if stln < 0 {
			stln = ln
		}
		edln = ln
	}

	if stln < 0 || edln < 0 { // shouldn't happen.
		return
	}
	pc.PushBounds(bb)

	if ed.hasLineNumbers {
		ed.renderLineNumbersBoxAll()
		for ln := stln; ln <= edln; ln++ {
			ed.renderLineNumber(ln, false) // don't re-render std fill boxes
		}
	}

	ed.renderDepthBackground(stln, edln)
	ed.renderHighlights(stln, edln)
	ed.renderScopelights(stln, edln)
	ed.renderSelect()
	if ed.hasLineNumbers {
		tbb := bb
		tbb.Min.X += int(ed.LineNumberOffset)
		pc.PushBounds(tbb)
	}
	for ln := stln; ln <= edln; ln++ {
		lst := pos.Y + ed.offsets[ln]
		lp := pos
		lp.Y = lst
		lp.X += ed.LineNumberOffset
		if lp.Y+ed.fontAscent > float32(bb.Max.Y) {
			break
		}
		ed.renders[ln].Render(pc, lp) // not top pos; already has baseline offset
	}
	if ed.hasLineNumbers {
		pc.PopBounds()