public void drawBorderLine()

in fop-core/src/main/java/org/apache/fop/render/java2d/Java2DGraphicsPainter.java [63:209]


    public void drawBorderLine(int x1, int y1, int x2, int y2,
            boolean horz, boolean startOrBefore, int style, Color color)
                    throws IOException {
        float w = x2 - x1;
        float h = y2 - y1;
        if ((w < 0) || (h < 0)) {
            log.error("Negative extent received. Border won't be painted.");
            return;
        }
        switch (style) {
        case Constants.EN_DASHED:
            getG2D().setColor(color);
            if (horz) {
                float unit = Math.abs(2 * h);
                int rep = (int)(w / unit);
                if (rep % 2 == 0) {
                    rep++;
                }
                unit = w / rep;
                float ym = y1 + (h / 2);
                BasicStroke s = new BasicStroke(h, BasicStroke.CAP_BUTT,
                        BasicStroke.JOIN_MITER, 10.0f, new float[] {unit}, 0);
                getG2D().setStroke(s);
                getG2D().draw(new Line2D.Float(x1, ym, x2, ym));
            } else {
                float unit = Math.abs(2 * w);
                int rep = (int)(h / unit);
                if (rep % 2 == 0) {
                    rep++;
                }
                unit = h / rep;
                float xm = x1 + (w / 2);
                BasicStroke s = new BasicStroke(w, BasicStroke.CAP_BUTT,
                        BasicStroke.JOIN_MITER, 10.0f, new float[] {unit}, 0);
                getG2D().setStroke(s);
                getG2D().draw(new Line2D.Float(xm, y1, xm, y2));
            }
            break;
        case Constants.EN_DOTTED:
            getG2D().setColor(color);
            if (horz) {
                float unit = Math.abs(2 * h);
                int rep = (int)(w / unit);
                if (rep % 2 == 0) {
                    rep++;
                }
                unit = w / rep;
                float ym = y1 + (h / 2);
                BasicStroke s = new BasicStroke(h, BasicStroke.CAP_ROUND,
                        BasicStroke.JOIN_MITER, 10.0f, new float[] {0, unit}, 0);
                getG2D().setStroke(s);
                getG2D().draw(new Line2D.Float(x1, ym, x2, ym));
            } else {
                float unit = Math.abs(2 * w);
                int rep = (int)(h / unit);
                if (rep % 2 == 0) {
                    rep++;
                }
                unit = h / rep;
                float xm = x1 + (w / 2);
                BasicStroke s = new BasicStroke(w, BasicStroke.CAP_ROUND,
                        BasicStroke.JOIN_MITER, 10.0f, new float[] {0, unit}, 0);
                getG2D().setStroke(s);
                getG2D().draw(new Line2D.Float(xm, y1, xm, y2));
            }
            break;
        case Constants.EN_DOUBLE:
            getG2D().setColor(color);
            if (horz) {
                float h3 = h / 3;
                float ym1 = y1 + (h3 / 2);
                float ym2 = ym1 + h3 + h3;
                BasicStroke s = new BasicStroke(h3);
                getG2D().setStroke(s);
                getG2D().draw(new Line2D.Float(x1, ym1, x2, ym1));
                getG2D().draw(new Line2D.Float(x1, ym2, x2, ym2));
            } else {
                float w3 = w / 3;
                float xm1 = x1 + (w3 / 2);
                float xm2 = xm1 + w3 + w3;
                BasicStroke s = new BasicStroke(w3);
                getG2D().setStroke(s);
                getG2D().draw(new Line2D.Float(xm1, y1, xm1, y2));
                getG2D().draw(new Line2D.Float(xm2, y1, xm2, y2));
            }
            break;
        case Constants.EN_GROOVE:
        case Constants.EN_RIDGE:
            float colFactor = (style == Constants.EN_GROOVE ? 0.4f : -0.4f);
            if (horz) {
                Color uppercol = ColorUtil.lightenColor(color, -colFactor);
                Color lowercol = ColorUtil.lightenColor(color, colFactor);
                float h3 = h / 3;
                float ym1 = y1 + (h3 / 2);
                getG2D().setStroke(new BasicStroke(h3));
                getG2D().setColor(uppercol);
                getG2D().draw(new Line2D.Float(x1, ym1, x2, ym1));
                getG2D().setColor(color);
                getG2D().draw(new Line2D.Float(x1, ym1 + h3, x2, ym1 + h3));
                getG2D().setColor(lowercol);
                getG2D().draw(new Line2D.Float(x1, ym1 + h3 + h3, x2, ym1 + h3 + h3));
            } else {
                Color leftcol = ColorUtil.lightenColor(color, -colFactor);
                Color rightcol = ColorUtil.lightenColor(color, colFactor);
                float w3 = w / 3;
                float xm1 = x1 + (w3 / 2);
                getG2D().setStroke(new BasicStroke(w3));
                getG2D().setColor(leftcol);
                getG2D().draw(new Line2D.Float(xm1, y1, xm1, y2));
                getG2D().setColor(color);
                getG2D().draw(new Line2D.Float(xm1 + w3, y1, xm1 + w3, y2));
                getG2D().setColor(rightcol);
                getG2D().draw(new Line2D.Float(xm1 + w3 + w3, y1, xm1 + w3 + w3, y2));
            }
            break;
        case Constants.EN_INSET:
        case Constants.EN_OUTSET:
            colFactor = (style == Constants.EN_OUTSET ? 0.4f : -0.4f);
            if (horz) {
                color = ColorUtil.lightenColor(color, (startOrBefore ? 1 : -1) * colFactor);
                getG2D().setStroke(new BasicStroke(h));
                float ym1 = y1 + (h / 2);
                getG2D().setColor(color);
                getG2D().draw(new Line2D.Float(x1, ym1, x2, ym1));
            } else {
                color = ColorUtil.lightenColor(color, (startOrBefore ? 1 : -1) * colFactor);
                float xm1 = x1 + (w / 2);
                getG2D().setStroke(new BasicStroke(w));
                getG2D().setColor(color);
                getG2D().draw(new Line2D.Float(xm1, y1, xm1, y2));
            }
            break;
        case Constants.EN_HIDDEN:
            break;
        default:
            getG2D().setColor(color);
            if (horz) {
                float ym = y1 + (h / 2);
                getG2D().setStroke(new BasicStroke(h));
                getG2D().draw(new Line2D.Float(x1, ym, x2, ym));
            } else {
                float xm = x1 + (w / 2);
                getG2D().setStroke(new BasicStroke(w));
                getG2D().draw(new Line2D.Float(xm, y1, xm, y2));
            }
        }
    }