mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-06 09:21:18 -05:00
55 lines
972 B
C++
55 lines
972 B
C++
#ifndef LAZY_FILL_COMBO_BOX_HPP__
|
|
#define LAZY_FILL_COMBO_BOX_HPP__
|
|
|
|
#include <QComboBox>
|
|
|
|
class QWidget;
|
|
|
|
//
|
|
// Class LazyFillComboBox
|
|
//
|
|
// QComboBox derivative that signals show and hide of the pop up list.
|
|
//
|
|
class LazyFillComboBox final
|
|
: public QComboBox
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
Q_SIGNAL void about_to_show_popup ();
|
|
Q_SIGNAL void popup_hidden ();
|
|
|
|
explicit LazyFillComboBox (QWidget * parent = nullptr)
|
|
: QComboBox {parent}
|
|
{
|
|
}
|
|
|
|
#if QT_VERSION >= QT_VERSION_CHECK (5, 12, 0)
|
|
void showPopup () override
|
|
{
|
|
Q_EMIT about_to_show_popup ();
|
|
QComboBox::showPopup ();
|
|
}
|
|
|
|
void hidePopup () override
|
|
{
|
|
QComboBox::hidePopup ();
|
|
Q_EMIT popup_hidden ();
|
|
}
|
|
#else
|
|
void mousePressEvent (QMouseEvent * e) override
|
|
{
|
|
Q_EMIT about_to_show_popup ();
|
|
QComboBox::mousePressEvent (e);
|
|
}
|
|
|
|
void mouseReleaseEvent (QMouseEvent * e) override
|
|
{
|
|
QComboBox::mouseReleaseEvent (e);
|
|
Q_EMIT popup_hidden ();
|
|
}
|
|
#endif
|
|
};
|
|
|
|
#endif
|