Event QComboBox to Custom QLineEdit
The Problem: I have a custom event on QLineEdit inside a custom QComboBox and only specific events are being passed from QComboBox to QLineEdit when I want. I can't get tab to be passed.
I want when an event passed to QComboBox it will be passed to the QComboBox->lineEdit().
QCustomCombo::QCustomCombo():
m_lineEdit(new QCustomLineEdit)
{
setEditable(true);
setLineEdit(m_lineEdit);
}
bool QCustomCombo::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_tab)
{
//pass to lineEdit();
//I have tried 'return true/false and QWidget::event(event)'
//I have also tried commenting out QCustomCombo::event, same problem
}
}
return QWidget::event(event);
}
QCustomLineEdit
bool QCustomLineEdit::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_tab)
{
//Do custom Stuff
return true;
}
if(keyEvent->key() == Qt::Key_Right)
{
//Do custom Stuff
return true;
}
}
return QWidget::event(event);
}
The QLineEdit has a custom event for left and right arrow and tab. Only the arrows get passed. But I can't get the tab to pass to it.
c++ qt qt5 qcombobox qlineedit
edited Nov 14 '18 at 17:06
eyllanesc
78.3k103156
asked Nov 14 '18 at 16:47
DevilGaleDevilGale
114
add a comment |
The Problem: I have a custom event on QLineEdit inside a custom QComboBox and only specific events are being passed from QComboBox to QLineEdit when I want. I can't get tab to be passed.
I want when an event passed to QComboBox it will be passed to the QComboBox->lineEdit().
QCustomCombo::QCustomCombo():
m_lineEdit(new QCustomLineEdit)
{
setEditable(true);
setLineEdit(m_lineEdit);
}
bool QCustomCombo::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_tab)
{
//pass to lineEdit();
//I have tried 'return true/false and QWidget::event(event)'
//I have also tried commenting out QCustomCombo::event, same problem
}
}
return QWidget::event(event);
}
QCustomLineEdit
bool QCustomLineEdit::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_tab)
{
//Do custom Stuff
return true;
}
if(keyEvent->key() == Qt::Key_Right)
{
//Do custom Stuff
return true;
}
}
return QWidget::event(event);
}
The QLineEdit has a custom event for left and right arrow and tab. Only the arrows get passed. But I can't get the tab to pass to it.
c++ qt qt5 qcombobox qlineedit
edited Nov 14 '18 at 17:06
eyllanesc
78.3k103156
asked Nov 14 '18 at 16:47
DevilGaleDevilGale
114
add a comment |
The Problem: I have a custom event on QLineEdit inside a custom QComboBox and only specific events are being passed from QComboBox to QLineEdit when I want. I can't get tab to be passed.
I want when an event passed to QComboBox it will be passed to the QComboBox->lineEdit().
QCustomCombo::QCustomCombo():
m_lineEdit(new QCustomLineEdit)
{
setEditable(true);
setLineEdit(m_lineEdit);
}
bool QCustomCombo::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_tab)
{
//pass to lineEdit();
//I have tried 'return true/false and QWidget::event(event)'
//I have also tried commenting out QCustomCombo::event, same problem
}
}
return QWidget::event(event);
}
QCustomLineEdit
bool QCustomLineEdit::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_tab)
{
//Do custom Stuff
return true;
}
if(keyEvent->key() == Qt::Key_Right)
{
//Do custom Stuff
return true;
}
}
return QWidget::event(event);
}
The QLineEdit has a custom event for left and right arrow and tab. Only the arrows get passed. But I can't get the tab to pass to it.
c++ qt qt5 qcombobox qlineedit
edited Nov 14 '18 at 17:06
eyllanesc
78.3k103156
asked Nov 14 '18 at 16:47
DevilGaleDevilGale
114
The Problem: I have a custom event on QLineEdit inside a custom QComboBox and only specific events are being passed from QComboBox to QLineEdit when I want. I can't get tab to be passed.
I want when an event passed to QComboBox it will be passed to the QComboBox->lineEdit().
QCustomCombo::QCustomCombo():
m_lineEdit(new QCustomLineEdit)
{
setEditable(true);
setLineEdit(m_lineEdit);
}
bool QCustomCombo::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_tab)
{
//pass to lineEdit();
//I have tried 'return true/false and QWidget::event(event)'
//I have also tried commenting out QCustomCombo::event, same problem
}
}
return QWidget::event(event);
}
QCustomLineEdit
bool QCustomLineEdit::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_tab)
{
//Do custom Stuff
return true;
}
if(keyEvent->key() == Qt::Key_Right)
{
//Do custom Stuff
return true;
}
}
return QWidget::event(event);
}
The QLineEdit has a custom event for left and right arrow and tab. Only the arrows get passed. But I can't get the tab to pass to it.
c++ qt qt5 qcombobox qlineedit
c++ qt qt5 qcombobox qlineedit
edited Nov 14 '18 at 17:06
eyllanesc
78.3k103156
asked Nov 14 '18 at 16:47
DevilGaleDevilGale
114
edited Nov 14 '18 at 17:06
eyllanesc
78.3k103156
asked Nov 14 '18 at 16:47
DevilGaleDevilGale
114
edited Nov 14 '18 at 17:06
eyllanesc
78.3k103156
edited Nov 14 '18 at 17:06
eyllanesc
78.3k103156
edited Nov 14 '18 at 17:06
eyllanesc
78.3k103156
78.3k103156
asked Nov 14 '18 at 16:47
DevilGaleDevilGale
114
asked Nov 14 '18 at 16:47
DevilGaleDevilGale
114
asked Nov 14 '18 at 16:47
DevilGaleDevilGale
114
114
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Use QApplication::notify
bool QCustomCombo::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_Tab)
{
qApp->notify(m_lineEdit, event);
return true;
}
}
return QWidget::event(event);
}
answered Nov 14 '18 at 20:46
Serhiy KulishSerhiy Kulish
1524
How do I get access to qApp functions? I triedQCustomCombo : private QApplication, but that breaks myconnect()lines. The QCombo is located inside a mainwindow.cpp created by a main.cpp (main.cpp is where I have QApplication instance).
– DevilGale
Nov 14 '18 at 21:41
@DevilGale it is not necessary to inherit, just include the header:#include <QApplication>.QApplication::instance()is a singleton that can be used with the qApp macro.
– eyllanesc
Nov 15 '18 at 2:07
add a comment |
I want when an event passed to QComboBox it will be passed to the
QComboBox->lineEdit().
installEventFilter() is your friend here. It allows object A to install an event filter on another object B, so that before object B's event(QEvent *) method gets called, object A's eventFilter(QObject *, QEvent *) method will be called first, so that object A can decide how to handle the event (and whether or not the event should be passed on to object B afterwards).
You can use that so that your CustomCombo can see and react to events that would otherwise go directly to the `QComboBox.
answered Nov 15 '18 at 1:56
Jeremy FriesnerJeremy Friesner
39.4k1080162
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Use QApplication::notify
bool QCustomCombo::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_Tab)
{
qApp->notify(m_lineEdit, event);
return true;
}
}
return QWidget::event(event);
}
answered Nov 14 '18 at 20:46
Serhiy KulishSerhiy Kulish
1524
How do I get access to qApp functions? I triedQCustomCombo : private QApplication, but that breaks myconnect()lines. The QCombo is located inside a mainwindow.cpp created by a main.cpp (main.cpp is where I have QApplication instance).
– DevilGale
Nov 14 '18 at 21:41
@DevilGale it is not necessary to inherit, just include the header:#include <QApplication>.QApplication::instance()is a singleton that can be used with the qApp macro.
– eyllanesc
Nov 15 '18 at 2:07
add a comment |
Use QApplication::notify
bool QCustomCombo::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_Tab)
{
qApp->notify(m_lineEdit, event);
return true;
}
}
return QWidget::event(event);
}
answered Nov 14 '18 at 20:46
Serhiy KulishSerhiy Kulish
1524
How do I get access to qApp functions? I triedQCustomCombo : private QApplication, but that breaks myconnect()lines. The QCombo is located inside a mainwindow.cpp created by a main.cpp (main.cpp is where I have QApplication instance).
– DevilGale
Nov 14 '18 at 21:41
@DevilGale it is not necessary to inherit, just include the header:#include <QApplication>.QApplication::instance()is a singleton that can be used with the qApp macro.
– eyllanesc
Nov 15 '18 at 2:07
add a comment |
Use QApplication::notify
bool QCustomCombo::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_Tab)
{
qApp->notify(m_lineEdit, event);
return true;
}
}
return QWidget::event(event);
}
answered Nov 14 '18 at 20:46
Serhiy KulishSerhiy Kulish
1524
Use QApplication::notify
bool QCustomCombo::event(QEvent * event)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
if(keyEvent->key() == Qt::Key_Tab)
{
qApp->notify(m_lineEdit, event);
return true;
}
}
return QWidget::event(event);
}
answered Nov 14 '18 at 20:46
Serhiy KulishSerhiy Kulish
1524
answered Nov 14 '18 at 20:46
Serhiy KulishSerhiy Kulish
1524
answered Nov 14 '18 at 20:46
Serhiy KulishSerhiy Kulish
1524
answered Nov 14 '18 at 20:46
Serhiy KulishSerhiy Kulish
1524
1524
How do I get access to qApp functions? I triedQCustomCombo : private QApplication, but that breaks myconnect()lines. The QCombo is located inside a mainwindow.cpp created by a main.cpp (main.cpp is where I have QApplication instance).
– DevilGale
Nov 14 '18 at 21:41
@DevilGale it is not necessary to inherit, just include the header:#include <QApplication>.QApplication::instance()is a singleton that can be used with the qApp macro.
– eyllanesc
Nov 15 '18 at 2:07
add a comment |
How do I get access to qApp functions? I triedQCustomCombo : private QApplication, but that breaks myconnect()lines. The QCombo is located inside a mainwindow.cpp created by a main.cpp (main.cpp is where I have QApplication instance).
– DevilGale
Nov 14 '18 at 21:41
@DevilGale it is not necessary to inherit, just include the header:#include <QApplication>.QApplication::instance()is a singleton that can be used with the qApp macro.
– eyllanesc
Nov 15 '18 at 2:07
How do I get access to qApp functions? I tried
QCustomCombo : private QApplication, but that breaks my connect() lines. The QCombo is located inside a mainwindow.cpp created by a main.cpp (main.cpp is where I have QApplication instance).– DevilGale
Nov 14 '18 at 21:41
How do I get access to qApp functions? I tried
QCustomCombo : private QApplication, but that breaks my connect() lines. The QCombo is located inside a mainwindow.cpp created by a main.cpp (main.cpp is where I have QApplication instance).– DevilGale
Nov 14 '18 at 21:41
@DevilGale it is not necessary to inherit, just include the header:
#include <QApplication>. QApplication::instance() is a singleton that can be used with the qApp macro.– eyllanesc
Nov 15 '18 at 2:07
@DevilGale it is not necessary to inherit, just include the header:
#include <QApplication>. QApplication::instance() is a singleton that can be used with the qApp macro.– eyllanesc
Nov 15 '18 at 2:07
add a comment |
I want when an event passed to QComboBox it will be passed to the
QComboBox->lineEdit().
installEventFilter() is your friend here. It allows object A to install an event filter on another object B, so that before object B's event(QEvent *) method gets called, object A's eventFilter(QObject *, QEvent *) method will be called first, so that object A can decide how to handle the event (and whether or not the event should be passed on to object B afterwards).
You can use that so that your CustomCombo can see and react to events that would otherwise go directly to the `QComboBox.
answered Nov 15 '18 at 1:56
Jeremy FriesnerJeremy Friesner
39.4k1080162
add a comment |
I want when an event passed to QComboBox it will be passed to the
QComboBox->lineEdit().
installEventFilter() is your friend here. It allows object A to install an event filter on another object B, so that before object B's event(QEvent *) method gets called, object A's eventFilter(QObject *, QEvent *) method will be called first, so that object A can decide how to handle the event (and whether or not the event should be passed on to object B afterwards).
You can use that so that your CustomCombo can see and react to events that would otherwise go directly to the `QComboBox.
answered Nov 15 '18 at 1:56
Jeremy FriesnerJeremy Friesner
39.4k1080162
add a comment |
I want when an event passed to QComboBox it will be passed to the
QComboBox->lineEdit().
installEventFilter() is your friend here. It allows object A to install an event filter on another object B, so that before object B's event(QEvent *) method gets called, object A's eventFilter(QObject *, QEvent *) method will be called first, so that object A can decide how to handle the event (and whether or not the event should be passed on to object B afterwards).
You can use that so that your CustomCombo can see and react to events that would otherwise go directly to the `QComboBox.
answered Nov 15 '18 at 1:56
Jeremy FriesnerJeremy Friesner
39.4k1080162
I want when an event passed to QComboBox it will be passed to the
QComboBox->lineEdit().
installEventFilter() is your friend here. It allows object A to install an event filter on another object B, so that before object B's event(QEvent *) method gets called, object A's eventFilter(QObject *, QEvent *) method will be called first, so that object A can decide how to handle the event (and whether or not the event should be passed on to object B afterwards).
You can use that so that your CustomCombo can see and react to events that would otherwise go directly to the `QComboBox.
answered Nov 15 '18 at 1:56
Jeremy FriesnerJeremy Friesner
39.4k1080162
answered Nov 15 '18 at 1:56
Jeremy FriesnerJeremy Friesner
39.4k1080162
answered Nov 15 '18 at 1:56
Jeremy FriesnerJeremy Friesner
39.4k1080162
answered Nov 15 '18 at 1:56
Jeremy FriesnerJeremy Friesner
39.4k1080162
39.4k1080162
add a comment |
add a comment |
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