private String matrixTransform(SVGMatrix matrix) {
return "matrix("
+ matrix.getA()
+ ", "
+ matrix.getB()
+ ", "
+ matrix.getC()
+ ", "
+ matrix.getD()
+ ", "
+ matrix.getE()
+ ", "
+ matrix.getF()
+ ")";
}
@Override
public void move() {
Event event = D3.getEvent().cast();
SVGPoint p = getEventPoint(event).matrixTransform(m_stateTf);
SVGElement svg = getContainerElement().cast();
SVGGElement g = getDraggableElement().cast();
SVGRect gBox = g.getBBox();
SVGMatrix m =
m_stateTf
.inverse()
.translate(p.getX() - m_stateOrigin.getX(), p.getY() - m_stateOrigin.getY());
double mapWidth = gBox.getWidth() * m.getA();
double mapHeight = gBox.getHeight() * m.getA();
double boundaryX = calculateBoundsX(mapWidth, svg.getOffsetWidth(), m.getE());
double boundaryY = calculateBoundsY(mapHeight, svg.getOffsetHeight(), m.getF());
String matrixTransform =
"matrix(" + m.getA() + ", " + m.getB() + ", " + m.getC() + ", " + m.getD() + ", "
+ boundaryX + ", " + boundaryY + ")";
getDraggableElement().setAttribute("transform", matrixTransform);
// Updating the reference map
// TODO: this needs to be reworked a little its off
double viewPortWidth = (getContainerElement().getOffsetWidth() / m.getA()) * 0.4;
double viewPortHeight = (getContainerElement().getOffsetHeight() / m.getA()) * 0.4;
m_referenceMapViewport.setAttribute("width", "" + viewPortWidth);
m_referenceMapViewport.setAttribute("height", "" + viewPortHeight);
m_referenceMapViewport.setAttribute("x", "" + (-boundaryX * 0.4));
m_referenceMapViewport.setAttribute("y", "" + (-boundaryY * 0.4));
}