I am new at Qt. I searched for some hours now but I'm not able to find a solution.
My setup is as follows:
main.cpp
projectQt.cpp
projectQt.h
tab1.h
tab1.cpp
tab2.h
tab2.cpp
projectQt.ui
I want to create a project with Ui file. At the Ui file, i have three comboBox and two Apply button and at the tab1.cpp and tab2.cpp, I want to add initial Items of the comboboxes. If the user click the apply buttons, run the "OnBtnApplyClicked" methods. I have error of the project. please help me.
main.cpp
#include "projectQt.h"
#include <QtWidgets/QApplication>
int main(int argc, char *argv[])
{
ProjectQt w;
w.show();
return a.exec();
}
#include "projectQt.h"
#include <QtWidgets/QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
ProjectQt w;
w.show();
return a.exec();
}
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projectQt.ui file:
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>ProjectQtClass</class>
<widget class="QMainWindow" name="ProjectQtClass">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>900</width>
<height>900</height>
</rect>
</property>
<property name="windowTitle">
<string>ProjectQt</string>
</property>
<widget class="QWidget" name="centralWidget">
<widget class="QTabWidget" name="tabWidget">
<property name="geometry">
<rect>
<x>10</x>
<y>40</y>
<width>800</width>
<height>800</height>
</rect>
</property>
<property name="currentIndex">
<number>1</number>
</property>
<widget class="QWidget" name="IDC_FORM_TAB_1">
<attribute name="title">
<string>M001</string>
</attribute>
<widget class="QLabel" name="IDC_LBL_1_0">
<property name="geometry">
<rect>
<x>10</x>
<y>40</y>
<width>124</width>
<height>13</height>
</rect>
</property>
<property name="text">
<string>COMBO1</string>
</property>
</widget>
<widget class="QComboBox" name="IDC_CMB_1_0">
<property name="geometry">
<rect>
<x>120</x>
<y>40</y>
<width>69</width>
<height>22</height>
</rect>
</property>
</widget>
<widget class="QComboBox" name="IDC_CMB_1_1">
<property name="geometry">
<rect>
<x>120</x>
<y>90</y>
<width>69</width>
<height>22</height>
</rect>
</property>
</widget>
<widget class="QPushButton" name="IDC_BTN_1_Apply">
<property name="geometry">
<rect>
<x>180</x>
<y>174</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Apply</string>
</property>
</widget>
<widget class="QLabel" name="IDC_LBL_1_1">
<property name="geometry">
<rect>
<x>10</x>
<y>90</y>
<width>124</width>
<height>13</height>
</rect>
</property>
<property name="text">
<string>COMBO2</string>
</property>
</widget>
</widget>
<widget class="QWidget" name="IDC_FORM_TAB_2">
<attribute name="title">
<string>M002</string>
</attribute>
<widget class="QLabel" name="IDC_LBL_2_0">
<property name="geometry">
<rect>
<x>0</x>
<y>30</y>
<width>104</width>
<height>13</height>
</rect>
</property>
<property name="text">
<string>COMBO3</string>
</property>
</widget>
<widget class="QComboBox" name="IDC_CMB_2_0">
<property name="geometry">
<rect>
<x>100</x>
<y>30</y>
<width>69</width>
<height>22</height>
</rect>
</property>
</widget>
<widget class="QPushButton" name="IDC_BTN_2_Apply">
<property name="geometry">
<rect>
<x>100</x>
<y>70</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Apply</string>
</property>
</widget>
</widget>
</widget>
</widget>
<widget class="QMenuBar" name="menuBar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>900</width>
<height>21</height>
</rect>
</property>
</widget>
<widget class="QToolBar" name="mainToolBar">
<attribute name="toolBarArea">
<enum>TopToolBarArea</enum>
</attribute>
<attribute name="toolBarBreak">
<bool>false</bool>
</attribute>
</widget>
<widget class="QStatusBar" name="statusBar"/>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources>
<include location="projectQt.qrc"/>
</resources>
<connections/>
</ui>
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>ProjectQtClass</class>
<widget class="QMainWindow" name="ProjectQtClass">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>900</width>
<height>900</height>
</rect>
</property>
<property name="windowTitle">
<string>ProjectQt</string>
</property>
<widget class="QWidget" name="centralWidget">
<widget class="QTabWidget" name="tabWidget">
<property name="geometry">
<rect>
<x>10</x>
<y>40</y>
<width>800</width>
<height>800</height>
</rect>
</property>
<property name="currentIndex">
<number>1</number>
</property>
<widget class="QWidget" name="IDC_FORM_TAB_1">
<attribute name="title">
<string>M001</string>
</attribute>
<widget class="QLabel" name="IDC_LBL_1_0">
<property name="geometry">
<rect>
<x>10</x>
<y>40</y>
<width>124</width>
<height>13</height>
</rect>
</property>
<property name="text">
<string>COMBO1</string>
</property>
</widget>
<widget class="QComboBox" name="IDC_CMB_1_0">
<property name="geometry">
<rect>
<x>120</x>
<y>40</y>
<width>69</width>
<height>22</height>
</rect>
</property>
</widget>
<widget class="QComboBox" name="IDC_CMB_1_1">
<property name="geometry">
<rect>
<x>120</x>
<y>90</y>
<width>69</width>
<height>22</height>
</rect>
</property>
</widget>
<widget class="QPushButton" name="IDC_BTN_1_Apply">
<property name="geometry">
<rect>
<x>180</x>
<y>174</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Apply</string>
</property>
</widget>
<widget class="QLabel" name="IDC_LBL_1_1">
<property name="geometry">
<rect>
<x>10</x>
<y>90</y>
<width>124</width>
<height>13</height>
</rect>
</property>
<property name="text">
<string>COMBO2</string>
</property>
</widget>
</widget>
<widget class="QWidget" name="IDC_FORM_TAB_2">
<attribute name="title">
<string>M002</string>
</attribute>
<widget class="QLabel" name="IDC_LBL_2_0">
<property name="geometry">
<rect>
<x>0</x>
<y>30</y>
<width>104</width>
<height>13</height>
</rect>
</property>
<property name="text">
<string>COMBO3</string>
</property>
</widget>
<widget class="QComboBox" name="IDC_CMB_2_0">
<property name="geometry">
<rect>
<x>100</x>
<y>30</y>
<width>69</width>
<height>22</height>
</rect>
</property>
</widget>
<widget class="QPushButton" name="IDC_BTN_2_Apply">
<property name="geometry">
<rect>
<x>100</x>
<y>70</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Apply</string>
</property>
</widget>
</widget>
</widget>
</widget>
<widget class="QMenuBar" name="menuBar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>900</width>
<height>21</height>
</rect>
</property>
</widget>
<widget class="QToolBar" name="mainToolBar">
<attribute name="toolBarArea">
<enum>TopToolBarArea</enum>
</attribute>
<attribute name="toolBarBreak">
<bool>false</bool>
</attribute>
</widget>
<widget class="QStatusBar" name="statusBar"/>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources>
<include location="projectQt.qrc"/>
</resources>
<connections/>
</ui>
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projectQt.cpp file:
#include "projectQt.h"
#include "tab1.h"
#include "tab2.h"
#include "ui_projectQt.h"
Ctab1 *ctab1=new Ctab1;
Ctab2 *ctab2=new Ctab2;
ProjectQt
::ProjectQt(QWidget *parent
) ui(new Ui::ProjectQtClass)
{
ui->setupUi(this);
ctab1->initGUI();
ctab2->initGUI();
ui->IDC_CMB_2_0->addItem("123");
connect(ui->IDC_BTN_1_Apply,SIGNAL(clicked()),this,SLOT(Ctab1::OnBtnApplyClicked()));
connect(ui->IDC_BTN_2_Apply,SIGNAL(clicked()),this,SLOT(Ctab2::OnBtnApplyClicked()));
}
ProjectQt::~ProjectQt()
{
}
#include "projectQt.h"
#include "tab1.h"
#include "tab2.h"
#include "ui_projectQt.h"
Ctab1 *ctab1=new Ctab1;
Ctab2 *ctab2=new Ctab2;
ProjectQt::ProjectQt(QWidget *parent)
: QMainWindow(parent),
ui(new Ui::ProjectQtClass)
{
ui->setupUi(this);
ctab1->initGUI();
ctab2->initGUI();
ui->IDC_CMB_2_0->addItem("123");
connect(ui->IDC_BTN_1_Apply,SIGNAL(clicked()),this,SLOT(Ctab1::OnBtnApplyClicked()));
connect(ui->IDC_BTN_2_Apply,SIGNAL(clicked()),this,SLOT(Ctab2::OnBtnApplyClicked()));
}
ProjectQt::~ProjectQt()
{
}
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projectQt.h file:
#ifndef projectQt_H
#define projectQt_H
#include <QtWidgets/QMainWindow>
#include "ui_projectQt.h"
#include "tab1.h"
#include "tab2.h"
{
Q_OBJECT
public:
~ProjectQt();
Ui::ProjectQtClass *ui;
};
#endif // projectQt_H
#ifndef projectQt_H
#define projectQt_H
#include <QtWidgets/QMainWindow>
#include "ui_projectQt.h"
#include "tab1.h"
#include "tab2.h"
class ProjectQt : public QMainWindow
{
Q_OBJECT
public:
ProjectQt(QWidget *parent = 0);
~ProjectQt();
Ui::ProjectQtClass *ui;
};
#endif // projectQt_H
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tab1.h file:
#pragma once
#include <string>
#include "projectQt.h"
#include "ui_projectQt.h"
class Ctab1
{
public:
Ctab1(void);
~Ctab1(void);
public slots:
 
void setEvents();
void initGUI();
void OnBtnApplyClicked();
};
#pragma once
#include <string>
#include "projectQt.h"
#include "ui_projectQt.h"
class Ctab1
{
public:
Ctab1(void);
~Ctab1(void);
public slots:
 
void setEvents();
void initGUI();
void OnBtnApplyClicked();
};
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tab1.cpp file:
#include "projectQt.h"
#include "tab1.h"
#include <QTextStream>
#include "ui_projectQt.h"
Ctab1::Ctab1(void)
{
}
Ctab1::~Ctab1()
{
}
void Ctab1::initGUI(){
ui->IDC_CMB_1_1->addItem("adsa");
}
void Ctab1::OnBtnApplyClicked(){
}
#include "projectQt.h"
#include "tab1.h"
#include <QTextStream>
#include "ui_projectQt.h"
Ctab1::Ctab1(void)
{
}
Ctab1::~Ctab1()
{
}
void Ctab1::initGUI(){
ui->IDC_CMB_1_1->addItem("adsa");
}
void Ctab1::OnBtnApplyClicked(){
}
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tab2.h file:
#pragma once
#include <string>
#include "projectQt.h"
#include "ui_projectQt.h"
class Ctab2
{
public:
Ctab1(void);
~Ctab1(void);
public slots:
 
void setEvents();
void initGUI();
void OnBtnApplyClicked();
};
#pragma once
#include <string>
#include "projectQt.h"
#include "ui_projectQt.h"
class Ctab2
{
public:
Ctab1(void);
~Ctab1(void);
public slots:
 
void setEvents();
void initGUI();
void OnBtnApplyClicked();
};
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tab2.cpp file:
#include "projectQt.h"
#include "tab2.h"
#include <QTextStream>
#include "ui_projectQt.h"
Ctab2::Ctab2(void)
{
}
Ctab2::~Ctab2()
{
}
void Ctab2::initGUI(){
ui->IDC_CMB_2_0->addItem("adsaxxx");
}
void Ctab2::OnBtnApplyClicked(){
}
#include "projectQt.h"
#include "tab2.h"
#include <QTextStream>
#include "ui_projectQt.h"
Ctab2::Ctab2(void)
{
}
Ctab2::~Ctab2()
{
}
void Ctab2::initGUI(){
ui->IDC_CMB_2_0->addItem("adsaxxx");
}
void Ctab2::OnBtnApplyClicked(){
}
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I cant declare ui identifier for Tab1 and Tab2. How can i declare it for Tab1.cpp and Tab2.cpp files. If i declare ui, I will solve the problem (I hope ).
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