onMouseDown method
dynamic
onMouseDown(
- dynamic event
Implementation
onMouseDown(event) {
if (_state == State.none) {
if (event.button == scope.mouseButtons['LEFT']) {
_state = State.rotate;
} else if (event.button == scope.mouseButtons['MIDDLE']) {
_state = State.zoom;
} else if (event.button == scope.mouseButtons['RIGHT']) {
_state = State.pan;
}
}
var state = (_keyState != State.none) ? _keyState : _state;
if (state == State.rotate && !scope.noRotate) {
_moveCurr.copy(getMouseOnCircle(event.pageX, event.pageY));
_movePrev.copy(_moveCurr);
} else if (state == State.zoom && !scope.noZoom) {
_zoomStart.copy(getMouseOnScreen(event.pageX, event.pageY));
_zoomEnd.copy(_zoomStart);
} else if (state == State.pan && !scope.noPan) {
_panStart.copy(getMouseOnScreen(event.pageX, event.pageY));
_panEnd.copy(_panStart);
}
scope.dispatchEvent(_startEvent);
}