Examples with LineSeg org.talend.commons.ui.gmf.draw2d.LineSeg used on opensource projects

Example 1 with LineSeg

use of org.talend.commons.ui.gmf.draw2d.LineSeg in project tdi-studio-se by Talend.

the class NodeAnchor method getLocationForMultipleConnections.

public Point getLocationForMultipleConnections(int connectionId) {
    if ((sourceLocation.y >= targetLocation.y) && ((sourceLocation.y + sourceRect.height) <= (targetLocation.y + targetRect.height))) {
        targetRect = new Rectangle(new Point(targetLocation.x, sourceLocation.y), new Dimension(targetRect.width, sourceRect.height));
    } else if ((sourceLocation.x >= targetLocation.x) && ((sourceLocation.x + sourceRect.width) <= (targetLocation.x + targetRect.width))) {
        targetRect = new Rectangle(new Point(sourceLocation.x, targetLocation.y), new Dimension(sourceRect.width, sourceRect.height));
    }
    // will calculate the numerator and denominator for the function to place the points.
    // example: 1/2; 3/4; 1/4; 5/8; 3/8; 7/8; 1/8; 9/16; 7/16; 11/16; 5/16; 13/16; 3/16...
    int num = 1;
    int numPair = 1;
    int numImpair = 1;
    int denom = 2;
    for (int i = 1; i < connectionId + 1; i++) {
        if ((i % 2) == 0) {
            // pair
            if ((numPair + 2) > denom) {
                denom = denom * 2;
                numPair = (denom / 2) + 1;
                numImpair = numPair;
            } else {
                numPair += 2;
            }
            num = numPair;
        } else {
            // impair
            numImpair -= 2;
            if (numImpair > 0) {
                num = numImpair;
            }
        }
    }
    LineSeg lineSource, lineTarget;
    if ((sourceLocation.x < targetRect.getCenter().x) && (targetRect.getCenter().x < (sourceLocation.x + sourceRect.width))) {
        lineSource = new LineSeg(sourceRect.getLeft(), sourceRect.getRight());
        lineTarget = new LineSeg(targetRect.getLeft(), targetRect.getRight());
    } else {
        lineSource = new LineSeg(sourceRect.getTop(), sourceRect.getBottom());
        lineTarget = new LineSeg(targetRect.getTop(), targetRect.getBottom());
    }
    Double length = (lineSource.length() * num / denom);
    Point pointSource = new Point();
    lineSource.pointOn(length.longValue(), KeyPoint.ORIGIN, pointSource);
    length = (lineTarget.length() * num / denom);
    Point pointTarget = new Point();
    lineTarget.pointOn(length.longValue(), KeyPoint.ORIGIN, pointTarget);
    if ((sourceLocation.y < pointTarget.y) && (pointTarget.y < (sourceLocation.y + sourceRect.height))) {
        // contains
        pointSource.y = pointTarget.y;
    }
    if ((sourceLocation.x < pointTarget.x) && (pointTarget.x < (sourceLocation.x + sourceRect.width))) {
        // contains
        pointSource.x = pointTarget.x;
    }
    return calculateLocationFromRef(pointSource, pointTarget);
}

Example 2 with LineSeg

use of org.talend.commons.ui.gmf.draw2d.LineSeg in project tdi-studio-se by Talend.

the class NodeAnchor method calculateLocationFromRef.

/**
     * DOC nrousseau Comment method "calculateLocationFromRef".
     * 
     * @param sourceRect
     * @param targetRect
     * @param sourcePoint
     * @param targetPoint
     */
private Point calculateLocationFromRef(Point sourcePoint, Point targetPoint) {
    LineSeg lineSourceToTarget = new LineSeg(sourcePoint, targetPoint);
    List<LineSeg> lineList = new ArrayList<LineSeg>();
    if (!isTargetAnchor) {
        lineList.add(new LineSeg(sourceRect.getTopLeft(), sourceRect.getTopRight()));
        lineList.add(new LineSeg(sourceRect.getTopLeft(), sourceRect.getBottomLeft()));
        lineList.add(new LineSeg(sourceRect.getTopRight(), sourceRect.getBottomRight()));
        lineList.add(new LineSeg(sourceRect.getBottomLeft(), sourceRect.getBottomRight()));
    } else {
        lineList.add(new LineSeg(targetRect.getTopLeft(), targetRect.getTopRight()));
        lineList.add(new LineSeg(targetRect.getTopLeft(), targetRect.getBottomLeft()));
        lineList.add(new LineSeg(targetRect.getTopRight(), targetRect.getBottomRight()));
        lineList.add(new LineSeg(targetRect.getBottomLeft(), targetRect.getBottomRight()));
    }
    int tolerance = 0;
    Point inter = null;
    while (inter == null && (tolerance < 10)) {
        for (LineSeg line : lineList) {
            inter = lineSourceToTarget.intersect(line, tolerance);
            if (inter != null) {
                return inter;
            }
        }
        tolerance++;
    }
    return super.getLocation(getReferencePoint());
}