@Override
public boolean processMouseDown(MouseDownEvent event) {
JavaScriptObject target = event.getNativeEvent().getEventTarget();
m = g.getScreenCTM().inverse();
delta = getCoordinates(event, m);
float x = posHandle.getX().getBaseVal().getValue();
float y = posHandle.getY().getBaseVal().getValue();
float width = posHandle.getWidth().getBaseVal().getValue();
float height = posHandle.getHeight().getBaseVal().getValue();
OMSVGPoint p = svg.createSVGPoint();
if (target == posHandle.getElement()) {
mode = Mode.POS;
p.setX(x);
p.setY(y);
} else if (target == topLeftHandle.getElement()) {
p.setX(x);
p.setY(y);
mode = Mode.TOP_LEFT;
} else if (target == bottomRightHandle.getElement()) {
p.setX(x + width);
p.setY(y + height);
mode = Mode.BOTTOM_RIGHT;
}
if (mode.consumeEvent()) {
delta.substract(p);
event.preventDefault();
event.stopPropagation();
}
return true;
}
@Override
public boolean processMouseMove(MouseMoveEvent event) {
if (mode.consumeEvent()) {
float x = posHandle.getX().getBaseVal().getValue();
float y = posHandle.getY().getBaseVal().getValue();
float width = posHandle.getWidth().getBaseVal().getValue();
float height = posHandle.getHeight().getBaseVal().getValue();
OMSVGPoint p = getCoordinates(event, m).substract(delta);
switch (mode) {
case POS:
{
posHandle.getX().getBaseVal().setValue(p.getX());
posHandle.getY().getBaseVal().setValue(p.getY());
}
break;
case TOP_LEFT:
{
float xmax = Math.min(p.getX(), x + width);
float ymax = Math.min(p.getY(), y + height);
posHandle.getX().getBaseVal().setValue(xmax);
posHandle.getY().getBaseVal().setValue(ymax);
posHandle.getWidth().getBaseVal().setValue(width + x - xmax);
posHandle.getHeight().getBaseVal().setValue(height + y - ymax);
}
break;
case BOTTOM_RIGHT:
{
float xmin = Math.max(p.getX(), x);
float ymin = Math.max(p.getY(), y);
posHandle.getWidth().getBaseVal().setValue(xmin - x);
posHandle.getHeight().getBaseVal().setValue(ymin - y);
}
break;
}
update();
event.preventDefault();
event.stopPropagation();
}
return true;
}