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lib/ChordPro/res/abc/abc2svg/grid3-1.js  view on Meta::CPAN

			? (img.width / cfmt.scale - w) / 2	// center
			: s.lm + 1
		if ((s.fmt || cfmt).trimsvg)		// adjust the SVG width
			img.wx = x0 + w - img.lm - img.rm

		// generate the cells
		yl = posy + 3
		y = posy + 3 - font.size * .7
		while (1) {
			cl = cells.shift()
			if (!cl)
				break
			y += hr
			yl += hr
			x = x0 + wc / 2
			while (1) {
				cell = cl.shift()
				if (!cell)
					break
				lc += build_cell(cell, x, y, yl, hr)
				x += wc
			}
		}

		// draw the lines
		line = '<path class="stroke" d="\n'
		y = posy + 3
		for (i = 0; i <= nr; i++) {
			line += 'M' + x0.toFixed(1) + ' ' + y.toFixed(1) +
				'h' + w.toFixed(1)+ '\n'
			y += hr
		}
		x = x0
		y = posy + 3
		for (i = 0; i <= nc; i++) {
			line += 'M' + x.toFixed(1) + ' ' + y.toFixed(1) +
				'v' + (hr * nr).toFixed(1) + '\n'
			x += wc
		}
		line += '"/>\n'

		// insert the cells
		line += lc

		// show the repeat signs
		y = posy + 3 - font.size * .7
		while (1) {
			bl = bars.shift()
			if (!bl)
				break
			x = x0
			y += hr
			while (1) {
				bar = bl.shift()
				if (!bar)
					break
				if (bar[0] == ':')
					line += '<text class="' + cls + '" x="' +
						(x - 5).toFixed(1) +
						'" y="' + y.toFixed(1) +
						'" style="font-weight:bold;font-size:' +
						(font.size * 1.6).toFixed(1) +
						'px">:</text>\n'
				if (bar.slice(-1) == ':')
					line += '<text class="' + cls + '" x="' +
						(x + 5).toFixed(1) +
						'" y="' + y.toFixed(1) +
						'" style="font-weight:bold;font-size:' +
						(font.size * 1.6).toFixed(1) +
						'px">:</text>\n'
				x += wc
			}
		}
		abc.out_svg(line)
		abc.vskip(hr * nr + 6)
	} // build_grid()

	// ----- block_gen ----

	// set the text style
	if (!cfmt.gridfont)
		abc.param_set_font("gridfont", "serif 16")
	font = abc.get_font('grid')
	font_cl = abc.font_class(font)
	cls = font_cl + " mid"
	abc.add_style("\n.mid {text-anchor:middle}")
	abc.set_font('grid')		// (for strwh())

	// scan the grid content
	txt = txt.split('\n')
	while (1) {
		ln = txt.shift()	// line
		if (!ln)
			break

		// extract the bars and the chords
		ln = ln.match(/[|:]+|[^|:\s]+/g)
		bars[nr] = []
		cells[nr] = []
		i = -1
		while (1) {
			cl = ln.shift()
			if (!cl)
				break
			if (cl.match(/[:|]+/)) {
				bars[nr][++i] = cl
				cells[nr][i] = []
			} else {
				if (!cells[nr][i]) {	// if starting '|' is missing
					bars[nr][++i] = '|'
					cells[nr][i] = []
				}
				if (cl == '.' || cl == '-')
					cl = ''
				cells[nr][i].push(cl)
			}
		}
		if (cells[nr][i].length)
			bars[nr][++i] = '|'	// missing ending bar
		else
			cells[nr][i] = null	// keep just the measure bar

		if (i > nc)
			nc = i

		i = 0
		while (1) {
			cl = cells[nr][i++]