[Solved]Project suddenly doesn't compile

Gillou_beginqt

From what I know my Qt Hearders haven't been modified. What is the issue then?

hskoglund

Hi if you compile in Release mode do you get the same errors?

Gillou_beginqt

Yes exactly the same in release mode

hskoglund

Hi, do you have the code for panelstack.h?

Gillou_beginqt

Here the code

#ifndef PANELSTACK_H
#define PANELSTACK_H

#include <QWidget>
#include <QLabel>
#include <QStack>
#include <QStackedWidget>
#include "abstractpanel.h"

class PanelStack : public QWidget
{
    Q_OBJECT
public:

     static PanelStack *instance();

     int addPanel( AbstractPanel* );
     void showPanel( int );
     PanelStack();


public slots:
     void home();
     void back();

private:

     static PanelStack *m_instance;

     void showTopPanel();

   //  QLabel *m_titleLabel;

     QStackedWidget *m_panelStack;
     QStack<int> m_history;

};

#endif // PANELSTACK_H


#include "panelstack.h"
#include "abstractpanel.h"
#include <QStackedWidget>
#include <QGridLayout>


PanelStack *PanelStack::m_instance = 0;
PanelStack *PanelStack::instance()
{
    if( !m_instance )
        m_instance = new PanelStack();

    return m_instance;
}

int PanelStack::addPanel( AbstractPanel *panel )
{
    return m_panelStack->addWidget( panel );
}

void PanelStack::showPanel( int index )
{
    m_history.push( index );
    showTopPanel();
}

void PanelStack::showTopPanel()
{
    m_panelStack->setCurrentIndex( m_history.top() );
    AbstractPanel *panel = dynamic_cast<AbstractPanel*>( m_panelStack->widget( m_history.top() ) );

    panel->enterPanel();
   // m_titleLabel->setText( panel->titleText() );
}

PanelStack::PanelStack() : QWidget()
{
    //m_titleLabel = new QLabel();
    //m_titleLabel->setAlignment( Qt::AlignCenter );
    m_panelStack = new QStackedWidget();

    QGridLayout *layout = new QGridLayout( this );
    //layout->addWidget( m_titleLabel, 0, 0 );
    layout->addWidget( m_panelStack, 1, 0 );
}

void PanelStack::back()
{
    if( m_history.count() <= 1 )
        return; // Cannot go back past the first panel

    m_history.pop();

    showTopPanel();
}


void PanelStack::home()
{
    if( m_history.count() <= 1 )
        return; // Cannot go home if there are no panels, and is already home if there is only one panel

    while( m_history.count() > 1 )
        m_history.pop();

    showTopPanel();
}

SGaist

Did you check the content of QStack.h ?

Gillou_beginqt

I did check the content of Qstack.h

QStack.h

/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QSTACK_H
#define QSTACK_H

#include <QtCore/qvector.h>

QT_BEGIN_NAMESPACE


template<class T>
class QStack : public QVector<T>
{
public:
    inline QStack() {}
    inline ~QStack() {}
    inline void swap(QStack<T> &other) { QVector<T>::swap(other); } // prevent QVector<->QStack swaps
    inline void push(const T &t) { QVector<T>::append(t); }
    T pop();
    T &top();
    const T &top() const;
};

template<class T>
inline T QStack<T>::pop()
{ Q_ASSERT(!this->isEmpty()); T t = this->data()[this->size() -1];
  this->resize(this->size()-1); return t; }

template<class T>
inline T &QStack<T>::top()
{ Q_ASSERT(!this->isEmpty()); this->detach(); return this->data()[this->size()-1]; }

template<class T>
inline const T &QStack<T>::top() const
{ Q_ASSERT(!this->isEmpty()); return this->data()[this->size()-1]; }

QT_END_NAMESPACE

#endif // QSTACK_H

hskoglund

Sorry need abstractpanel.h also..

Gillou_beginqt

Abstract Panel

#ifndef ABSTRACTPANEL_H
#define ABSTRACTPANEL_H

#include <QWidget>

class AbstractPanel:public QWidget
{
public:
    virtual void enterPanel() {}
    //virtual QString titleText() const = 0;

protected:
    AbstractPanel();

    void addPanelToStack();
    int panelIndex() const;

private:
    int m_panelIndex;
};

#endif // ABSTRACTPANEL_H

#include "abstractpanel.h"
#include "panelstack.h"

AbstractPanel::AbstractPanel():QWidget()
{

}

void AbstractPanel::addPanelToStack()
{
    m_panelIndex = PanelStack::instance()->addPanel( this );
}

int AbstractPanel::panelIndex() const
{
    return m_panelIndex;
}

hskoglund

Hi, hmmm files look ok, but just checking:
Almost at the end of newsalepanel.h I don't see any }; I mean shouldn't it be:

...

    QDataWidgetMapper *mapper;
}; 

#endif // NEWSALEPANEL_H

Gillou_beginqt

Thank you. I have found the error. I've missed a bracket and a semi colon in one of my header file