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Center the camera on the cursor at first tick of optical zoom

This commit is contained in:
Maxime Gimeno 2020-10-23 12:21:16 +02:00
parent 121a23d964
commit b116a92be3
2 changed files with 17 additions and 13 deletions
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4
GraphicsView/include/CGAL/Qt/qglviewer.h
View File

@ -1167,7 +1167,6 @@ protected:
QMap<WheelBindingPrivate, MouseActionPrivate> wheelBinding_;
QMap<ClickBindingPrivate, qglviewer::ClickAction> clickBinding_;
::Qt::Key currentlyPressedKey_;
bool z_is_pressed;
// S t a t e F i l e
QString stateFileName_;
@ -1212,6 +1211,9 @@ protected:
bool is_sharing;
bool is_linked;
QOpenGLContext* shared_context;
// Zoom
bool _first_tick;
public:
//! Is used to know if the openGL context is 4.3 or ES 2.0.
//! @returns `true` if the context is 4.3.

26
GraphicsView/include/CGAL/Qt/qglviewer_impl.h
View File

@ -155,6 +155,7 @@ void CGAL::QGLViewer::defaultConstructor() {
is_sharing = false;
is_linked = false;
shared_context = nullptr;
_first_tick = true;
}
CGAL_INLINE_FUNCTION
@ -1544,6 +1545,17 @@ void CGAL::QGLViewer::wheelEvent(QWheelEvent *e) {
MouseActionPrivate map = wheelBinding_[wbp];
switch (map.handler) {
case qglviewer::CAMERA:
if(currentlyPressedKey_ == ::Qt::Key_Z && _first_tick)
{
_first_tick = false;
makeCurrent();
//orient camera to the cursor.
bool found = false;
qglviewer::Vec point;
point = camera()->pointUnderPixel(mapFromGlobal(QCursor::pos()), found);
if(found)
camera()->lookAt(point);
}
camera()->frame()->startAction(map.action, map.withConstraint);
camera()->frame()->wheelEvent(e, camera());
break;
@ -2263,21 +2275,11 @@ void CGAL::QGLViewer::keyPressEvent(QKeyEvent *e) {
const ::Qt::Key key = ::Qt::Key(e->key());
const ::Qt::KeyboardModifiers modifiers = e->modifiers();
if(key == ::Qt::Key_Z && ! e->isAutoRepeat())
{
makeCurrent();
//orient camera to the cursor.
bool found = false;
qglviewer::Vec point;
point = camera()->pointUnderPixel(mapFromGlobal(QCursor::pos()), found);
if(!found)
return;
camera()->lookAt(point);
update();
return;
_first_tick = true;
}
const ::Qt::KeyboardModifiers modifiers = e->modifiers();
QMap<qglviewer::KeyboardAction, unsigned int>::ConstIterator it = keyboardBinding_
.begin(),
end =