Qt-interest Archive, August 2006
Slots not called
Message 1 in thread
Hi all,
I am new to Qt 4.1.4 on WinXP and MinGW.
For the first time i tried to use Designer for the GUI.
I have a few buttons. I connected the clicked() signal of loadButton and
saveButton to the slots open() and save() respectively.
But those slots never seem to get called.
What am i missing?
Here is the code:
///////// mainwidget.h ///////////
#ifndef MAINWIDGET_H_
#define MAINWIDGET_H_
#include "ui_mainwidget.h"
#include <QWidget>
class MyMainWidget : public QWidget, Ui::mainWidget
{
Q_OBJECT
public:
MyMainWidget(QWidget * parent = 0, Qt::WFlags f = 0 );
private slots:
void open();
void save();
};
#endif /*MAINWIDGET_H_*/
//////////// mainWdiget.cpp //////////////
#include "mainwidget.h"
MyMainWidget::MyMainWidget(QWidget * parent, Qt::WFlags f)
: QWidget(parent,f)
{
setupUi(this);
connect(loadButton,SIGNAL(clicked()),this,SLOT(open()));
connect(saveButton,SIGNAL(clicked()),this,SLOT(save()));
}
void MyMainWidget::open()
{
qDebug("open()");
}
void MyMainWidget::save()
{
qDebug("save()");
}
/////////////// main.cpp ///////////
#include "mainwidget.h"
#include "ui_mainwidget.h"
#include <QApplication>
int main (int argc, char** argv)
{
QApplication app(argc,argv);
Ui::mainWidget wUi;
MyMainWidget * w = new MyMainWidget();
wUi.setupUi(w);
w->show();
return app.exec();
}
/////////////// ui_mainwidget.h generated by uic /////////
#ifndef UI_MAINWIDGET_H
#define UI_MAINWIDGET_H
#include <QtCore/QVariant>
#include <QtGui/QAction>
#include <QtGui/QApplication>
#include <QtGui/QButtonGroup>
#include <QtGui/QDoubleSpinBox>
#include <QtGui/QHBoxLayout>
#include <QtGui/QPushButton>
#include <QtGui/QSpacerItem>
#include <QtGui/QTableView>
#include <QtGui/QVBoxLayout>
#include <QtGui/QWidget>
class Ui_mainWidget
{
public:
QWidget *layoutWidget;
QVBoxLayout *vboxLayout;
QTableView *tableView;
QHBoxLayout *hboxLayout;
QDoubleSpinBox *offsetSpinBox;
QPushButton *offsetButton;
QHBoxLayout *hboxLayout1;
QPushButton *loadButton;
QPushButton *saveButton;
QSpacerItem *spacerItem;
QPushButton *quitButton;
void setupUi(QWidget *mainWidget)
{
mainWidget->setObjectName(QString::fromUtf8("mainWidget"));
mainWidget->resize(QSize(308,
309).expandedTo(mainWidget->minimumSizeHint()));
layoutWidget = new QWidget(mainWidget);
layoutWidget->setObjectName(QString::fromUtf8("layoutWidget"));
layoutWidget->setGeometry(QRect(21, 21, 258, 260));
vboxLayout = new QVBoxLayout(layoutWidget);
vboxLayout->setSpacing(6);
vboxLayout->setMargin(0);
vboxLayout->setObjectName(QString::fromUtf8("vboxLayout"));
tableView = new QTableView(layoutWidget);
tableView->setObjectName(QString::fromUtf8("tableView"));
vboxLayout->addWidget(tableView);
hboxLayout = new QHBoxLayout();
hboxLayout->setSpacing(6);
hboxLayout->setMargin(0);
hboxLayout->setObjectName(QString::fromUtf8("hboxLayout"));
offsetSpinBox = new QDoubleSpinBox(layoutWidget);
offsetSpinBox->setObjectName(QString::fromUtf8("offsetSpinBox"));
offsetSpinBox->setMaximum(100);
offsetSpinBox->setMinimum(-100);
offsetSpinBox->setSingleStep(0.1);
hboxLayout->addWidget(offsetSpinBox);
offsetButton = new QPushButton(layoutWidget);
offsetButton->setObjectName(QString::fromUtf8("offsetButton"));
hboxLayout->addWidget(offsetButton);
vboxLayout->addLayout(hboxLayout);
hboxLayout1 = new QHBoxLayout();
hboxLayout1->setSpacing(6);
hboxLayout1->setMargin(0);
hboxLayout1->setObjectName(QString::fromUtf8("hboxLayout1"));
loadButton = new QPushButton(layoutWidget);
loadButton->setObjectName(QString::fromUtf8("loadButton"));
loadButton->setIcon(QIcon(QString::fromUtf8("G:/tools/IconsNSG4070/nuvola-1.0/nuvola/32x32/actions/fileopen.png")));
loadButton->setAutoRepeat(true);
hboxLayout1->addWidget(loadButton);
saveButton = new QPushButton(layoutWidget);
saveButton->setObjectName(QString::fromUtf8("saveButton"));
saveButton->setIcon(QIcon(QString::fromUtf8("G:/tools/IconsNSG4070/nuvola-1.0/nuvola/32x32/actions/filesave.png")));
hboxLayout1->addWidget(saveButton);
spacerItem = new QSpacerItem(61, 26, QSizePolicy::Expanding,
QSizePolicy::Minimum);
hboxLayout1->addItem(spacerItem);
quitButton = new QPushButton(layoutWidget);
quitButton->setObjectName(QString::fromUtf8("quitButton"));
quitButton->setIcon(QIcon(QString::fromUtf8("g:/tools/IconsNSG4070/nuvola-1.0/nuvola/32x32/actions/exit.png")));
hboxLayout1->addWidget(quitButton);
vboxLayout->addLayout(hboxLayout1);
retranslateUi(mainWidget);
QMetaObject::connectSlotsByName(mainWidget);
} // setupUi
void retranslateUi(QWidget *mainWidget)
{
mainWidget->setWindowTitle(QApplication::translate("mainWidget",
"Form", 0, QApplication::UnicodeUTF8));
offsetSpinBox->setPrefix(QApplication::translate("mainWidget", "", 0,
QApplication::UnicodeUTF8));
offsetButton->setText(QApplication::translate("mainWidget", "Add
Offset", 0, QApplication::UnicodeUTF8));
loadButton->setText(QApplication::translate("mainWidget", "Load", 0,
QApplication::UnicodeUTF8));
loadButton->setShortcut(QApplication::translate("mainWidget", "", 0,
QApplication::UnicodeUTF8));
saveButton->setText(QApplication::translate("mainWidget", "&Save", 0,
QApplication::UnicodeUTF8));
quitButton->setText(QApplication::translate("mainWidget", "&Quit", 0,
QApplication::UnicodeUTF8));
Q_UNUSED(mainWidget);
} // retranslateUi
};
namespace Ui {
class mainWidget: public Ui_mainWidget {};
} // namespace Ui
#endif // UI_MAINWIDGET_H
Best,
Andre
--
[ signature omitted ]
Message 2 in thread
Hi,
they are probably called, but you cannot see the qDebug output, since it
is sent to stdDebug on Windoze.
Either put "console"-flag to CONFIG in your pro file (then you get it on
the console) or use some program to capture stdDebug.
Regards,
Malte
Andre Haupt <ahaupt@xxxxxxxxxxxxx> schrieb am 31.08.2006 11:59:47:
> Hi all,
>
> I am new to Qt 4.1.4 on WinXP and MinGW.
> For the first time i tried to use Designer for the GUI.
>
> I have a few buttons. I connected the clicked() signal of loadButton and
> saveButton to the slots open() and save() respectively.
>
> But those slots never seem to get called.
> What am i missing?
>
>
> Here is the code:
>
> ///////// mainwidget.h ///////////
> #ifndef MAINWIDGET_H_
> #define MAINWIDGET_H_
>
> #include "ui_mainwidget.h"
>
> #include <QWidget>
>
> class MyMainWidget : public QWidget, Ui::mainWidget
> {
> Q_OBJECT
>
> public:
> MyMainWidget(QWidget * parent = 0, Qt::WFlags f = 0 );
>
> private slots:
>
> void open();
> void save();
> };
>
> #endif /*MAINWIDGET_H_*/
>
> //////////// mainWdiget.cpp //////////////
> #include "mainwidget.h"
>
> MyMainWidget::MyMainWidget(QWidget * parent, Qt::WFlags f)
> : QWidget(parent,f)
> {
> setupUi(this);
>
> connect(loadButton,SIGNAL(clicked()),this,SLOT(open()));
> connect(saveButton,SIGNAL(clicked()),this,SLOT(save()));
> }
>
> void MyMainWidget::open()
> {
> qDebug("open()");
> }
>
> void MyMainWidget::save()
> {
> qDebug("save()");
> }
>
> /////////////// main.cpp ///////////
>
> #include "mainwidget.h"
> #include "ui_mainwidget.h"
>
> #include <QApplication>
>
> int main (int argc, char** argv)
> {
> QApplication app(argc,argv);
>
> Ui::mainWidget wUi;
> MyMainWidget * w = new MyMainWidget();
>
> wUi.setupUi(w);
> w->show();
>
> return app.exec();
> }
>
>
> /////////////// ui_mainwidget.h generated by uic /////////
> #ifndef UI_MAINWIDGET_H
> #define UI_MAINWIDGET_H
>
> #include <QtCore/QVariant>
> #include <QtGui/QAction>
> #include <QtGui/QApplication>
> #include <QtGui/QButtonGroup>
> #include <QtGui/QDoubleSpinBox>
> #include <QtGui/QHBoxLayout>
> #include <QtGui/QPushButton>
> #include <QtGui/QSpacerItem>
> #include <QtGui/QTableView>
> #include <QtGui/QVBoxLayout>
> #include <QtGui/QWidget>
>
> class Ui_mainWidget
> {
> public:
> QWidget *layoutWidget;
> QVBoxLayout *vboxLayout;
> QTableView *tableView;
> QHBoxLayout *hboxLayout;
> QDoubleSpinBox *offsetSpinBox;
> QPushButton *offsetButton;
> QHBoxLayout *hboxLayout1;
> QPushButton *loadButton;
> QPushButton *saveButton;
> QSpacerItem *spacerItem;
> QPushButton *quitButton;
>
> void setupUi(QWidget *mainWidget)
> {
> mainWidget->setObjectName(QString::fromUtf8("mainWidget"));
> mainWidget->resize(QSize(308,
> 309).expandedTo(mainWidget->minimumSizeHint()));
> layoutWidget = new QWidget(mainWidget);
> layoutWidget->setObjectName(QString::fromUtf8("layoutWidget"));
> layoutWidget->setGeometry(QRect(21, 21, 258, 260));
> vboxLayout = new QVBoxLayout(layoutWidget);
> vboxLayout->setSpacing(6);
> vboxLayout->setMargin(0);
> vboxLayout->setObjectName(QString::fromUtf8("vboxLayout"));
> tableView = new QTableView(layoutWidget);
> tableView->setObjectName(QString::fromUtf8("tableView"));
>
> vboxLayout->addWidget(tableView);
>
> hboxLayout = new QHBoxLayout();
> hboxLayout->setSpacing(6);
> hboxLayout->setMargin(0);
> hboxLayout->setObjectName(QString::fromUtf8("hboxLayout"));
> offsetSpinBox = new QDoubleSpinBox(layoutWidget);
> offsetSpinBox->setObjectName(QString::fromUtf8("offsetSpinBox"));
> offsetSpinBox->setMaximum(100);
> offsetSpinBox->setMinimum(-100);
> offsetSpinBox->setSingleStep(0.1);
>
> hboxLayout->addWidget(offsetSpinBox);
>
> offsetButton = new QPushButton(layoutWidget);
> offsetButton->setObjectName(QString::fromUtf8("offsetButton"));
>
> hboxLayout->addWidget(offsetButton);
>
>
> vboxLayout->addLayout(hboxLayout);
>
> hboxLayout1 = new QHBoxLayout();
> hboxLayout1->setSpacing(6);
> hboxLayout1->setMargin(0);
> hboxLayout1->setObjectName(QString::fromUtf8("hboxLayout1"));
> loadButton = new QPushButton(layoutWidget);
> loadButton->setObjectName(QString::fromUtf8("loadButton"));
>
> loadButton->setIcon(QIcon(QString::fromUtf8("G:
> /tools/IconsNSG4070/nuvola-1.0/nuvola/32x32/actions/fileopen.png")));
> loadButton->setAutoRepeat(true);
>
> hboxLayout1->addWidget(loadButton);
>
> saveButton = new QPushButton(layoutWidget);
> saveButton->setObjectName(QString::fromUtf8("saveButton"));
>
> saveButton->setIcon(QIcon(QString::fromUtf8("G:
> /tools/IconsNSG4070/nuvola-1.0/nuvola/32x32/actions/filesave.png")));
>
> hboxLayout1->addWidget(saveButton);
>
> spacerItem = new QSpacerItem(61, 26, QSizePolicy::Expanding,
> QSizePolicy::Minimum);
>
> hboxLayout1->addItem(spacerItem);
>
> quitButton = new QPushButton(layoutWidget);
> quitButton->setObjectName(QString::fromUtf8("quitButton"));
>
> quitButton->setIcon(QIcon(QString::fromUtf8("g:
> /tools/IconsNSG4070/nuvola-1.0/nuvola/32x32/actions/exit.png")));
>
> hboxLayout1->addWidget(quitButton);
>
>
> vboxLayout->addLayout(hboxLayout1);
>
> retranslateUi(mainWidget);
>
> QMetaObject::connectSlotsByName(mainWidget);
> } // setupUi
>
> void retranslateUi(QWidget *mainWidget)
> {
> mainWidget->setWindowTitle(QApplication::translate("mainWidget",
> "Form", 0, QApplication::UnicodeUTF8));
> offsetSpinBox->setPrefix(QApplication::translate("mainWidget", "",
0,
> QApplication::UnicodeUTF8));
> offsetButton->setText(QApplication::translate("mainWidget", "Add
> Offset", 0, QApplication::UnicodeUTF8));
> loadButton->setText(QApplication::translate("mainWidget", "Load", 0,
> QApplication::UnicodeUTF8));
> loadButton->setShortcut(QApplication::translate("mainWidget", "", 0,
> QApplication::UnicodeUTF8));
> saveButton->setText(QApplication::translate("mainWidget", "&Save",
0,
> QApplication::UnicodeUTF8));
> quitButton->setText(QApplication::translate("mainWidget", "&Quit",
0,
> QApplication::UnicodeUTF8));
> Q_UNUSED(mainWidget);
> } // retranslateUi
>
> };
>
> namespace Ui {
> class mainWidget: public Ui_mainWidget {};
> } // namespace Ui
>
> #endif // UI_MAINWIDGET_H
>
>
>
>
> Best,
>
> Andre
>
> --
>
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
> with "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
--
[ signature omitted ]
Message 3 in thread
--On Donnerstag, 31. August 2006 12:05 +0200 Malte Witt
<malte.witt@xxxxxxxxxxxxx> wrote:
>
> Hi,
>
> they are probably called, but you cannot see the qDebug output, since it
> is sent to stdDebug on Windoze.
> Either put "console"-flag to CONFIG in your pro file (then you get it on
> the console) or use some program to capture stdDebug.
>
Sorry, forgot to mention that my project file already contains
CONFIG += console and qDebug() in general works.
So this doesnt seem to be the reason.
Best,
Andre
--
[ signature omitted ]
Message 4 in thread
Hmm ok ... was just a blind guess. I have another one, if you don't mind:
You are calling setupUi twice - once in your constructor of the mainWidget
and once in your main(). You should remove the Ui-Stuff from the main() I
guess.
Regards,
Malte
Andre Haupt <ahaupt@xxxxxxxxxxxxx> schrieb am 31.08.2006 12:10:10:
> --On Donnerstag, 31. August 2006 12:05 +0200 Malte Witt
> <malte.witt@xxxxxxxxxxxxx> wrote:
>
> >
> > Hi,
> >
> > they are probably called, but you cannot see the qDebug output, since
it
> > is sent to stdDebug on Windoze.
> > Either put "console"-flag to CONFIG in your pro file (then you get it
on
> > the console) or use some program to capture stdDebug.
> >
>
> Sorry, forgot to mention that my project file already contains
> CONFIG += console and qDebug() in general works.
> So this doesnt seem to be the reason.
>
> Best,
>
> Andre
>
> --
>
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
> with "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
--
[ signature omitted ]
Message 5 in thread
> But those slots never seem to get called.
> What am i missing?
I don't know. I just noticed you use setupUi twice:
> MyMainWidget::MyMainWidget(QWidget * parent, Qt::WFlags f)
> : QWidget(parent,f)
> {
> setupUi(this); /******************* HERE *******************/
>
> connect(loadButton,SIGNAL(clicked()),this,SLOT(open()));
> connect(saveButton,SIGNAL(clicked()),this,SLOT(save()));
> }
> [...]
> int main (int argc, char** argv)
> {
> QApplication app(argc,argv);
>
> Ui::mainWidget wUi;
> MyMainWidget * w = new MyMainWidget();
>
> wUi.setupUi(w); /******************* HERE *******************/
> w->show();
I am not even sure where the '{load,save}Button' in the C'tor come
from...
Andre'
--
[ signature omitted ]
