Qt 4.2 Shortcut Management

[dvmorris]

How do I use the numbers as shortcuts? I can't seem to get them to work by themselves without adding a CTRL or ALT key before them.

For example, I have a QTabWidget with five pages and I setup five modes like this

modeBasicsAct = new QAction(QIcon(":/images/mode_basics.png"), tr("&Basics"), this);
	sm->registerAction(modeBasicsAct, "Modes", "1");
	modeBasicsAct->setStatusTip(tr("Switch to Basics Mode"));
	connect(modeBasicsAct, SIGNAL(triggered()), this, SLOT(switchMode(0)));

modeBasicsAct = new QAction(QIcon(":/images/mode_basics.png"), tr("&Basics"), this);
	sm->registerAction(modeBasicsAct, "Modes", "1");
	modeBasicsAct->setStatusTip(tr("Switch to Basics Mode"));
	connect(modeBasicsAct, SIGNAL(triggered()), this, SLOT(switchMode(0)));

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and I have a slot function defined like this:

void MainWindow::switchMode(int pageId){	
	modesTabWidget->setCurrentIndex(pageId);
}

void MainWindow::switchMode(int pageId){	
	modesTabWidget->setCurrentIndex(pageId);
}

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The 1,2,3,4,5 shortcuts I set with registerAction do not switch the TabWidget's currentIndex to 0,1,2,3,or 4, like I write in the slot function.

Do you have any ideas as to why that won't work? I also noticed that it doesn't seem to work with any other shortcuts like CTRL+L. Maybe this has nothing to do with the numbers problem. anyways, sorry to bother you so much. I really appreciate your help. Your shortcut manager is phenomenal.

[fullmetalcoder]

How do I use the numbers as shortcuts? I can't seem to get them to work by themselves without adding a CTRL or ALT key before them.

For example, I have a QTabWidget with five pages and I setup five modes like this

modeBasicsAct = new QAction(QIcon(":/images/mode_basics.png"), tr("&Basics"), this);
    sm->registerAction(modeBasicsAct, "Modes", "1");
    modeBasicsAct->setStatusTip(tr("Switch to Basics Mode"));
    connect(modeBasicsAct, SIGNAL(triggered()), this, SLOT(switchMode(0)));

modeBasicsAct = new QAction(QIcon(":/images/mode_basics.png"), tr("&Basics"), this);
    sm->registerAction(modeBasicsAct, "Modes", "1");
    modeBasicsAct->setStatusTip(tr("Switch to Basics Mode"));
    connect(modeBasicsAct, SIGNAL(triggered()), this, SLOT(switchMode(0)));

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and I have a slot function defined like this:

void MainWindow::switchMode(int pageId){    
    modesTabWidget->setCurrentIndex(pageId);
}

void MainWindow::switchMode(int pageId){    
    modesTabWidget->setCurrentIndex(pageId);
}

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The 1,2,3,4,5 shortcuts I set with registerAction do not switch the TabWidget's currentIndex to 0,1,2,3,or 4, like I write in the slot function.

Do you have any ideas as to why that won't work? I also noticed that it doesn't seem to work with any other shortcuts like CTRL+L. Maybe this has nothing to do with the numbers problem. anyways, sorry to bother you so much. I really appreciate your help. Your shortcut manager is phenomenal.

The shortcut management provided is just a (very ) convinient wrapper over Qt shortcut mechanism but it doesn't modify it... AFAIK shortcuts NEED modifiers to work because other keys are generally forwarded to other widgets and this is especially true if you have, say, any kind of input widget in your current tab...

Besides your slots registration is wrong : the SLOT() macro is passed a qualified function name ( name + parameters types) and no arguments... That's probably why your code is failing. If you use a special slot for each mode switching and make sure that the child widgets don't accept number keys input it should work...

[dvmorris]

ok I understand a little better now. I rewrote the slot functions so there is a unique one for each of the five TabWidget Pages. here is one of them:

//inside MainWindow class in  .h file
private slots:
	void switchBasicsMode();
 
//in cpp file
void MainWindow::switchBasicsMode(){	
	modesTabWidget->setCurrentIndex(0);
}

//inside MainWindow class in  .h file
private slots:
	void switchBasicsMode();

//in cpp file
void MainWindow::switchBasicsMode(){	
	modesTabWidget->setCurrentIndex(0);
}

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modeBasicsAct = new QAction(QIcon(":/images/mode_basics.png"), tr("&Basics"), this);
	sm->registerAction(modeBasicsAct, "Modes", "CTRL+9");
	modeBasicsAct->setStatusTip(tr("Switch to Basics Mode"));
	connect(modeBasicsAct, SIGNAL(triggered()), this, SLOT(switchBasicsMode()));

modeBasicsAct = new QAction(QIcon(":/images/mode_basics.png"), tr("&Basics"), this);
	sm->registerAction(modeBasicsAct, "Modes", "CTRL+9");
	modeBasicsAct->setStatusTip(tr("Switch to Basics Mode"));
	connect(modeBasicsAct, SIGNAL(triggered()), this, SLOT(switchBasicsMode()));

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but that doesn't seem to work either. the signals slots demo here: http://doc.trolltech.com/4.2/signalsandslots.html is not very helpful either.

The shortcut doesn't seem to do anything. But all the shortcuts for actions that are attached to menuBar items work fine (except single numbers and CTRL+Q). Do I just need to create a dummy menuBar for the five modes so that the shortcuts will do something?

[fullmetalcoder]

The shortcut doesn't seem to do anything. But all the shortcuts for actions that are attached to menuBar items work fine (except single numbers and CTRL+Q). Do I just need to create a dummy menuBar for the five modes so that the shortcuts will do something?

I forgot to point this out as well... Qt, as far as I tested, forward shortcuts to VISIBLE actions only... If you don't attach your actions to menubars, toolbars, buttons or anything that can manage them, then the shortcut will never trigger the actions (except maybe if you play with the shortcut context but even that may fail...)

[dvmorris]

I'm attempting to compile this program on Windows, and it gives the following error:

debug\moc_qshortcutdialog.cpp:40: error: definition of static data member 'QShortcutDialog::staticMetaObject' of dllimport'd class.
debug\moc_qshortcutdialog.cpp:40: warning: 'QShortcutDialog::staticMetaObject' defined locally after being referenced with dllimport linkage
mingw32-make[1]: *** [debug\moc_qshortcutdialog.o] Error 1
mingw32-make[1]: Leaving directory `C:/Documents and Settings/dave/Desktop/thesis/topmod/trunk'
mingw32-make: *** [debug] Error 2

I found a post that you answered about a similar problem here:

http://www.qtcentre.org/forum/f-qt-s...rary-3286.html

but I'm not sure how to implement your fix in this case. Do you have any suggestions? Thanks for the help,
dave