Method Draw

scintilla/src/Indicator.cxx:26–162

}

void Indicator::Draw(Surface *surface, const PRectangle &rc, const PRectangle &rcLine) {
	surface->PenColour(fore);
	int ymid = (rc.bottom + rc.top) / 2;
	if (style == INDIC_SQUIGGLE) {
		int x = int(rc.left+0.5);
		int xLast = int(rc.right+0.5);
		int y = 0;
		surface->MoveTo(x, rc.top + y);
		while (x < xLast) {
			if ((x + 2) > xLast) {
				if (xLast > x)
					y = 1;
				x = xLast;
			} else {
				x += 2;
				y = 2 - y;
			}
			surface->LineTo(x, rc.top + y);
		}
	} else if (style == INDIC_SQUIGGLEPIXMAP) {
		PRectangle rcSquiggle = PixelGridAlign(rc);

		int width = Platform::Minimum(4000, rcSquiggle.Width());
		RGBAImage image(width, 3, 1.0, 0);
		enum { alphaFull = 0xff, alphaSide = 0x2f, alphaSide2=0x5f };
		for (int x = 0; x < width; x++) {
			if (x%2) {
				// Two halfway columns have a full pixel in middle flanked by light pixels
				image.SetPixel(x, 0, fore, alphaSide);
				image.SetPixel(x, 1, fore, alphaFull);
				image.SetPixel(x, 2, fore, alphaSide);
			} else {
				// Extreme columns have a full pixel at bottom or top and a mid-tone pixel in centre
				image.SetPixel(x, (x%4) ? 0 : 2, fore, alphaFull);
				image.SetPixel(x, 1, fore, alphaSide2);
			}
		}
		surface->DrawRGBAImage(rcSquiggle, image.GetWidth(), image.GetHeight(), image.Pixels());
	} else if (style == INDIC_SQUIGGLELOW) {
		surface->MoveTo(rc.left, rc.top);
		int x = rc.left + 3;
		int y = 0;
		while (x < rc.right) {
			surface->LineTo(x-1, rc.top + y);
			y = 1 - y;
        	surface->LineTo(x, rc.top + y);
			x += 3;
		}
		surface->LineTo(rc.right, rc.top + y);	// Finish the line
	} else if (style == INDIC_TT) {
		surface->MoveTo(rc.left, ymid);
		int x = rc.left + 5;
		while (x < rc.right) {
			surface->LineTo(x, ymid);
			surface->MoveTo(x-3, ymid);
			surface->LineTo(x-3, ymid+2);
			x++;
			surface->MoveTo(x, ymid);