buildPath function

dynamic buildPath(dynamic glyphs, dynamic glyph)

Implementation

buildPath(glyphs, glyph) {
    if (glyph.isComposite) {
        for (var j = 0; j < glyph.components.length; j += 1) {
            var component = glyph.components[j];
            var componentGlyph = glyphs.get(component.glyphIndex);
            // Force the ttfGlyphLoader to parse the glyph.
            componentGlyph.getPath();
            if (componentGlyph.points) {
                var transformedPoints;
                if (component.matchedPoints == null) {
                    // component positioned by offset
                    transformedPoints = transformPoints(componentGlyph.points, component);
                } else {
                    // component positioned by matched points
                    if ((component.matchedPoints[0] > glyph.points.length - 1) ||
                        (component.matchedPoints[1] > componentGlyph.points.length - 1)) {
                        throw('Matched points out of range in ' + glyph.name);
                    }
                    var firstPt = glyph.points[component.matchedPoints[0]];
                    var secondPt = componentGlyph.points[component.matchedPoints[1]];
                    var transform = {
                        "xScale": component.xScale,
                        "scale01": component.scale01,
                        "scale10": component.scale10,
                        "yScale": component.yScale,
                        "dx": 0,
                        "dy": 0
                    };
                    secondPt = transformPoints([secondPt], transform)[0];
                    transform["dx"] = firstPt.x - secondPt.x;
                    transform["dy"] = firstPt.y - secondPt.y;
                    transformedPoints = transformPoints(componentGlyph.points, transform);
                }
                glyph.points = glyph.points.concat(transformedPoints);
            }
        }
    }

    return getPath(glyph.points);
}