/**
* Tablet events are handled here
* @param event event info
*/
bool CanvasView::viewportEvent(QEvent *event)
{
if(event->type() == QEvent::TabletMove) {
// Stylus moved
QTabletEvent *tabev = static_cast<QTabletEvent*>(event);
tabev->accept();
const dpcore::Point point(mapToScene(tabev->pos()), tabev->pressure());
if(!_prevpoint.intSame(point)) {
if(_isdragging)
moveDrag(tabev->x(), tabev->y());
else {
if(_pendown) {
if(point.pressure()==0) {
// Missed a release event
_pendown = NOTDOWN;
onPenUp();
} else {
onPenMove(point);
}
}
updateOutline(point);
}
_prevpoint = point;
}
} else if(event->type() == QEvent::TabletPress) {
// Stylus touches the tablet surface
QTabletEvent *tabev = static_cast<QTabletEvent*>(event);
tabev->accept();
if(_dragbtndown) {
startDrag(tabev->x(), tabev->y(), _dragbtndown);
} else {
if(_pendown == NOTDOWN) {
const dpcore::Point point(mapToScene(tabev->pos()), tabev->pressure());
_pendown = TABLETDOWN;
onPenDown(point, false);
updateOutline(point);
_prevpoint = point;
}
}
} else if(event->type() == QEvent::TabletRelease) {
// Stylus lifted
QTabletEvent *tabev = static_cast<QTabletEvent*>(event);
tabev->accept();
if(_isdragging) {
stopDrag();
} else if(_pendown == TABLETDOWN) {
dpcore::Point point(mapToScene(tabev->pos()), 0);
updateOutline(point);
_prevpoint = point;
_pendown = NOTDOWN;
onPenUp();
}
} else {
return QGraphicsView::viewportEvent(event);
}
return true;
}
/**
* Tablet events are handled here
* @param event event info
*/
bool EditorView::viewportEvent(QEvent *event)
{
if(event->type() == QEvent::TabletMove) {
// Stylus moved
QTabletEvent *tabev = static_cast<QTabletEvent*>(event);
tabev->accept();
const dpcore::Point point(mapToScene(tabev->pos()), tabev->pressure());
if(!prevpoint_.intSame(point)) {
if(isdragging_)
moveDrag(tabev->x(), tabev->y());
else {
if(pendown_) {
if(point.pressure()==0) {
// Missed a release event
pendown_ = NOTDOWN;
emit penUp();
} else {
emit penMove(point);
}
}
updateOutline(point);
}
prevpoint_ = point;
}
} else if(event->type() == QEvent::TabletPress) {
// Stylus touches the tablet surface
QTabletEvent *tabev = static_cast<QTabletEvent*>(event);
tabev->accept();
if(dragbtndown_) {
startDrag(tabev->x(), tabev->y(), dragbtndown_);
} else {
if(pendown_ == NOTDOWN) {
const dpcore::Point point(mapToScene(tabev->pos()), tabev->pressure());
pendown_ = TABLETDOWN;
emit penDown(point);
updateOutline(point);
prevpoint_ = point;
}
}
} else if(event->type() == QEvent::TabletRelease) {
// Stylus lifted
QTabletEvent *tabev = static_cast<QTabletEvent*>(event);
tabev->accept();
if(isdragging_) {
stopDrag();
} else if(pendown_ == TABLETDOWN) {
dpcore::Point point(mapToScene(tabev->pos()), 0);
updateOutline(point);
prevpoint_ = point;
pendown_ = NOTDOWN;
emit penUp();
}
} else {
return QGraphicsView::viewportEvent(event);
}
return true;
}
/**
* Tablet events are handled here
* @param event event info
*/
bool CanvasView::viewportEvent(QEvent *event)
{
if(event->type() == QEvent::Gesture) {
gestureEvent(static_cast<QGestureEvent*>(event));
} else if(event->type() == QEvent::TabletMove && _enableTabletEvents) {
// Stylus moved
QTabletEvent *tabev = static_cast<QTabletEvent*>(event);
tabev->accept();
paintcore::Point point = mapToScene(tabev->posF(), tabev->pressure());
updateOutline(point);
if(!_prevpoint.intSame(point)) {
if(_isdragging)
moveDrag(tabev->x(), tabev->y());
else {
if(_pendown) {
_pointervelocity = point.distance(_prevpoint);
_pointerdistance += _pointervelocity;
point.setPressure(mapPressure(point.pressure(), true));
onPenMove(point, false, tabev->modifiers() & Qt::ShiftModifier, tabev->modifiers() & Qt::AltModifier);
}
}
_prevpoint = point;
}
} else if(event->type() == QEvent::TabletPress && _enableTabletEvents) {
// Stylus touches the tablet surface
QTabletEvent *tabev = static_cast<QTabletEvent*>(event);
tabev->accept();
if(_dragbtndown) {
startDrag(tabev->x(), tabev->y(), _dragbtndown);
} else {
if(_pendown == NOTDOWN) {
_pointerdistance = 0;
_pointervelocity = 0;
const paintcore::Point point = mapToScene(tabev->posF(), mapPressure(tabev->pressure(), true));
_specialpenmode = tabev->modifiers() & Qt::ControlModifier; /* note: modifiers doesn't seem to work, at least on Qt 5.2.0 */
_pendown = TABLETDOWN;
onPenDown(point, false);
updateOutline(point);
_prevpoint = point;
}
}
} else if(event->type() == QEvent::TabletRelease && _enableTabletEvents) {
// Stylus lifted
// Ignore this event: a mouseRelease event is also generated, so we let
// the mouseRleaseEvent function handle this.
} else {
return QGraphicsView::viewportEvent(event);
}
return true;
}
