creat own figure/checkbox

[ReasyEasyPeasy]

Hey guys,
first of all english isnt my first language. So im sorry for my rough english.
First problem:
Im new to qt and i need a little advice how i can find a start for my problem.
I need to creat an own figure. Its extend of triangles and rectangles. This figure should have some areas i can fill with information. Like the text from a pushbutton. The figure should be able to move around with the mouse and i want to link them with a line. Which qt classes/fuctions do i need for this?

second problem:
i need a box like a checkbox but this box needs to count the clicks and 4 different symbols instead of just the check.if the user clicks once show symbol one and so on.
I dont need a complete solution just the point where i have to start.
i use the qt editor.
greets ReasyEasyPeasy

[anda_skoa]

For the first problem I suggest to have a look at QGraphicsView.

For the second problem, maybe a QLabel for which you reimplement mousePressEvent() and mouseReleaseEvent().
Or maybe a QPushButton subclass with a counter.

Cheers,
_

[ReasyEasyPeasy]

hey,
thanks for this fast answer.
I tried to creat an own QPushButton but it doesnt work. Maybe u can help me?
I tryed the following:

#ifndef SYMBOLBUTTON_H
#define SYMBOLBUTTON_H
#include <QWidget>
#include <QPushButton>
#include <QString>
class SymbolButton : public QPushButton
{
    Q_OBJECT
public:
    int counter;
    SymbolButton(const QString& text, QWidget* parent = NULL);
    void changetext();
};
 
#endif // SYMBOLBUTTON_H

#ifndef SYMBOLBUTTON_H
#define SYMBOLBUTTON_H
#include <QWidget>
#include <QPushButton>
#include <QString>
class SymbolButton : public QPushButton
{
    Q_OBJECT
public:
    int counter;
    SymbolButton(const QString& text, QWidget* parent = NULL);
    void changetext();
};

#endif // SYMBOLBUTTON_H

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#include "symbolbutton.h"
#include <QMessageBox>
#include <QWidget>
#include <QPushButton>
SymbolButton::SymbolButton(const QString& text, QWidget* parent) : QPushButton(text,parent)
{
    connect(this,SIGNAL(clicked()),this,changetext());
 
}
void SymbolButton::changetext(){
    this->counter++;
    if ( this->counter>5)
         this->counter=0;
    setText("test");
}

#include "symbolbutton.h"
#include <QMessageBox>
#include <QWidget>
#include <QPushButton>
SymbolButton::SymbolButton(const QString& text, QWidget* parent) : QPushButton(text,parent)
{
    connect(this,SIGNAL(clicked()),this,changetext());

}
void SymbolButton::changetext(){
    this->counter++;
    if ( this->counter>5)
         this->counter=0;
    setText("test");
}

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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QWidget>
#include <QPushButton>
#include "symbolbutton.h"
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    SymbolButton *button = new SymbolButton;
    ui->setupUi(this);
 
 
 
    int rows = ui->gridLayout->rowCount();
    int cols = ui->gridLayout->columnCount();
 
    ui->gridLayout->addWidget(button,rows,cols,0);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QWidget>
#include <QPushButton>
#include "symbolbutton.h"
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    SymbolButton *button = new SymbolButton;
    ui->setupUi(this);



    int rows = ui->gridLayout->rowCount();
    int cols = ui->gridLayout->columnCount();

    ui->gridLayout->addWidget(button,rows,cols,0);
}

MainWindow::~MainWindow()
{
    delete ui;
}

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This button should just change its text if u click on it and set counter = counter + 1.

[anda_skoa]

You forgot to initialize "counter"

And you are always setting the same text, independent of the value of "counter".

Cheers,
_

[ReasyEasyPeasy]

hm i dont get it. :O
Where and how i have to initialize counter?

SymbolButton::SymbolButton(const QString& text, QWidget* parent) : QPushButton(text,parent)
{
    int counter = 0;// like this?
    connect(this,SIGNAL(clicked()),this,changetext());
 
}
void SymbolButton::changetext(){
    this->counter++;
    if (counter>5)
        counter=0;
    setText("test");
}

SymbolButton::SymbolButton(const QString& text, QWidget* parent) : QPushButton(text,parent)
{
    int counter = 0;// like this?
    connect(this,SIGNAL(clicked()),this,changetext());

}
void SymbolButton::changetext(){
    this->counter++;
    if (counter>5)
        counter=0;
    setText("test");
}

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[anda_skoa]

In the constructor, yes, but not like that.
That defines a new, local, variable called "counter" and initializes it.

Cheers,
_

P.S.: use code tags for code, not quote tags

[ReasyEasyPeasy]

Well like this? Its still not working.
i get 2 errors.
Error: C2664: 'QMetaObject::Connection QObject::connect(const QObject *,const char *,const char *,Qt::ConnectionType) const'
Error: C2512: 'SymbolButton': No appropriate default constructor available

#include "symbolbutton.h"
#include <QMessageBox>
#include <QWidget>
#include <QPushButton>
 
SymbolButton::SymbolButton(const QString& text, QWidget* parent) : QPushButton(text,parent)
{
    this->counter = 0;
    connect(this,SIGNAL(clicked()),this,changetext());
 
}
void SymbolButton::changetext(){
    this->counter++;
    if (this->counter>5)
        this->counter=0;
    setText("test");
}

#include "symbolbutton.h"
#include <QMessageBox>
#include <QWidget>
#include <QPushButton>

SymbolButton::SymbolButton(const QString& text, QWidget* parent) : QPushButton(text,parent)
{
    this->counter = 0;
    connect(this,SIGNAL(clicked()),this,changetext());

}
void SymbolButton::changetext(){
    this->counter++;
    if (this->counter>5)
        this->counter=0;
    setText("test");
}

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EDIT:
ok i made a slot out of the funciton "changetext" and now i only get the second error:

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QWidget>
#include <QPushButton>
#include "symbolbutton.h"
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    SymbolButton *button = new SymbolButton;
    ui->setupUi(this);
 
 
 
    int rows = ui->gridLayout->rowCount();
    int cols = ui->gridLayout->columnCount();
 
    ui->gridLayout->addWidget(button,rows,cols,0);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QWidget>
#include <QPushButton>
#include "symbolbutton.h"
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    SymbolButton *button = new SymbolButton;
    ui->setupUi(this);



    int rows = ui->gridLayout->rowCount();
    int cols = ui->gridLayout->columnCount();

    ui->gridLayout->addWidget(button,rows,cols,0);
}

MainWindow::~MainWindow()
{
    delete ui;
}

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if i write

QPushButton *button = new QPushButton;

instead of

SymbolButton *button = new SymbolButton;

SymbolButton *button = new SymbolButton;

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in mainwindow.cpp why?

[anda_skoa]

Well like this?

yes

Error: C2664: 'QMetaObject::Connection QObject::connect(const QObject *,const char *,const char *,Qt::ConnectionType) const'

SLOT() macro missing around the slot argument.

Error: C2512: 'SymbolButton': No appropriate default constructor available

Your constructor requires a QString argument, you are trying to call it without.

Cheers,
_

[ReasyEasyPeasy]

ITS WORKING!!! thx ^^
:-*

[d_stranz]

ITS WORKING!!!

if (counter>5)
counter=0;

No, it isn't. In your original post, you said you wanted to count 4 clicks. This code counts 6 clicks. Try this and you'll see:

void SymbolButton::changetext(){
    this->counter++;
    if (this->counter>5)
        this->counter=0;
    setText( QString( "test%1" ).arg( counter ) );
}

void SymbolButton::changetext(){
    this->counter++;
    if (this->counter>5)
        this->counter=0;
    setText( QString( "test%1" ).arg( counter ) );
}

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