[Solved] setToolTip in QAction menu

anselmolsm · wrote on 21 Jun 2011, 18:16

In the declaration of ModQMenuBar you inherited QMenuBar, however did not make it public. In the line 7 of your header file, try the following:

@
class ModQMenuBar : public QMenuBar
@

jim_kaiser · wrote on 21 Jun 2011, 18:32

Right... you're missing the "public" keyword. When you inherit from a class, you specify the type of inheritance. Mostly you would only need public inheritance, you could read up on private and protected inheritance if you want.

So it should be..

@ class ModQMenuBar : public QMenuBar @

[ Edit: We probably need a "svn update" functionality on the "reply page" :-P .. so we can update the post to see if it's been answered before committing the reply.. ]

Exotic_Devel · wrote on 21 Jun 2011, 18:50

Now produced another error

/usr/include/QtGui/qmenubar.h:340: error: ‘QMenuBar& QMenuBar::operator=(const QMenuBar&)’ is private

/home/MatheusDevel/Devel/QtOptica/QtOptica-build-desktop/../QtOptica/ModQMenuBar.h:8: error: within this context

/home/MatheusDevel/Devel/QtOptica/QtOptica-build-desktop/../QtOptica/WindowMain.cpp:25: synthesized method ‘ModQMenuBar& ModQMenuBar::operator=(const ModQMenuBar&)’ first required here

jim_kaiser · wrote on 21 Jun 2011, 18:59

You wouldn't need to access the "=" operation of the menubar normally. So i in your code

@ modmenubar = new ModQMenuBar(this); @

modmenubar should a pointer to ModQMenuBar

@ ModQMenuBar* modmenubar; @

If that doesn't fix it.. could you post relevant code?

Exotic_Devel · wrote on 21 Jun 2011, 19:28

I declared in header

@#ifndef WINDOWMAIN_H
#define WINDOWMAIN_H

#include <QMainWindow>
#include <QMdiArea>
#include "ModQMenuBar.h"

class WindowMain : public QMainWindow
{
public:
WindowMain(QWidget *parent = 0);

    ~WindowMain();

private:
    // Area MDI
    QMdiArea *mdiarea;

    // Menus
    QMenu *arquivos;
    QMenu *relatorios;
    QMenu *ferramentas;
    QMenu *fiscal;
    QMenu *moviment;
    QMenu *configura;
    QMenu *ajuda;
    QMenu *redundantes;
    QMenu *relgerencias;

    // QActions de menus
    QAction *clientes;
    QAction *produtos;
    QAction *forneced;
    QAction *represen;
    QAction *usuarios;
    QAction *medicos;
    QAction *sair;
    QAction *enderecos;
    QAction *marclente;
    QAction *matelente;
    QAction *tipopgto;
    QAction *tipolente;
    QAction *tratament;
    QAction *restricoes;
    QAction *autobackup;
    QAction *bdconexao;
    QAction *impressdoc;
    QAction *leiturax;
    QAction *reducaoz;
    QAction *configicms;
    QAction *manual;
    QAction *queisso;
    QAction *sobre;
    QAction *relvenda;
    QAction *relcaixa;
    QAction *relespelhos;
    QAction *relos;
    QAction *partmedica;
    QAction *partfuncio;
    QAction *fatumensal;
    QAction *fatudiario;
    QAction *ranklentes;
    QAction *rankfornec;
    QAction *orcamentos;
    QAction *devolucoes;
    QAction *movicaixa;
    QAction *ordemservic;
    QAction *vendas;
    QAction *contapagar;
    QAction *contarecebe;

    QAction *calcula;
    QAction *callenbord;
    QAction *compatarmlen;
    QAction *backup;

    ModQMenuBar modmenubar; // << << << << here

};

#endif // WINDOWMAIN_H
@

Exotic_Devel · wrote on 21 Jun 2011, 19:32

Now after posting the code here, I notice not defined as a pointer.

I had set as a stack variable.

Thanks !!!!!!!

@ModQMenuBar *modmenubar; // << << << << here@

Exotic_Devel · wrote on 21 Jun 2011, 19:55

Is compiling normally, but the tooltip does not yet appear.

I did a test by putting a message to display if the IF test is satisfied. The message is never shown, ie, the IF test is never satisfied.

@#include "ModQMenuBar.h"
#include <QToolTip>
#include <QHelpEvent>
#include <iostream>

ModQMenuBar::ModQMenuBar(QWidget *parent):QMenuBar(parent)
{

}

bool ModQMenuBar::event(QEvent * evt)
{
const QHelpEvent *helpEvent = static_cast<QHelpEvent *>(evt);

if(helpEvent->type() == QEvent::ToolTip)
{
    QToolTip::showText(helpEvent->globalPos(), activeAction()->toolTip());
    std::cout << "Passou no IF";           // test if
}
return QMenuBar::event(evt);

}
@

I'm setting the tooltip for the method by QActions setToolTip

@restricoes = new QAction("Restrinções", configura);
restricoes->setToolTip("Configura o acesso dos usuários ao sistema");
@

anselmolsm · wrote on 21 Jun 2011, 20:59

I've just tested the code you posted, the tooltip appears.

Remember, to see the tooltip you need to leave the mouse pointer stopped for a while over the menu item.

And try to use "qDebug()":http://doc.qt.nokia.com/4.7/qdebug.html instead of std::cout.

Exotic_Devel · wrote on 21 Jun 2011, 21:35

ok, I'll put here some of the code where I use the ModQMenuBar

@
#include <QRect>
#include <QMenuBar>
#include <QToolBar> // Cabeçalhos da API Qt que serão usadas na janela pincipal
#include <QStatusBar>
#include <QList>

#include "WindowMain.h" // Usa o arquivo de cabeçalho onde a classe foi definida

/* Define a classe WindowMain e já invoca o
construtor da classe pai, passando o ponteiro
"parent" como parâmetro.*/

WindowMain::WindowMain(QWidget *parent):QMainWindow(parent)
{
QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8")); // Define os caracteres da
// aplicação p/ UTF-8

setWindowTitle("TESTETSTETS");

modmenubar = new ModQMenuBar(this);
setMenuBar(modmenubar);


// Exibe a barra de status de QMainWindow
statusBar()->show();

// Prepara a area de trabalho MDI da aplicação
mdiarea = new QMdiArea;
setCentralWidget(mdiarea);


// Prepara o menu principal da aplicação
configura                       = menuBar()->addMenu("&Configurações");

// Prepara os itens de menu
restricoes                      = new QAction("Restrinções", configura);
autobackup                      = new QAction("Backup Automático", configura);
bdconexao                       = new QAction("Conexão com o BD", configura);
impressdoc                      = new QAction("Impressão de Documentos", configura);

// Configuração das dicas de ferramenta
restricoes->setToolTip("Configura o acesso dos usuários ao sistema");
autobackup->setToolTip("Configura o backup automático do sistema");
bdconexao->setToolTip("Configura a conexão com o banco de dados");

// Carregando a lista de itens
QList <QAction *> listconfig;

listconfig << restricoes << autobackup << bdconexao << impressdoc;

//Adicionando a lista de intens aos menus
configura->addActions(listconfig);
// Deixando a janela no centro da tela
QRect ct = geometry();
ct.moveCenter(QApplication::desktop()->availableGeometry().center());
setGeometry(ct);

}

WindowMain::~WindowMain()
{
delete mdiarea;
delete modmenubar;
}
@

The header has already posted above

anselmolsm · wrote on 24 Jun 2011, 12:10

The current code handles QEvent::ToolTip in QMenuBar::event. For the menu items, you need to do the same QMenu::event().

Just a side note: As you can see, Qt does not support this use case by default. Do a quick research in your system, how many applications show tooltips like those you want? IMHO menu and menu items should have self-explaining names. If the menu names are good enough, the tooltips are redundant. But that's just my opinion...