具有Qt4的C的多窗口

我正在尝试构建一个GUI应用程序,我正在通过Qt这样做.我还想创建一个多窗口应用程序：我希望当我按下一个按钮时,另一个窗口显示(“隐藏”前一个窗口).那是GDI吗？

到目前为止,我已经为我想要的每个窗口(当前为4)创建了一个.ui文件,并且我正在尝试以这种方式连接它们(主窗口,另外3个).

我怎么能这样做？

我正在发送该程序的文件,以使我的问题更加不可靠：

main.cpp中

#include
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
StudyWindow s;
QStackedWidget *stackedWidget = new QStackedWidget;
stackedWidget->addWidget(w);
stackedWidget->addWidget(s);
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(stackedWidget);
setLayout(layout);
w.show();
return a.exec();
}


mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
ConnectStuff();
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::ConnectStuff()
{
}


mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include
#include
#include
#include
#include "study.h"
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
void ConnectStuff();
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H


study.h

#ifndef STUDYWINDOW_H
#define STUDYWINDOW_H
#include
#include
namespace Ui {
class StudyWindow;
}
class StudyWindow : public QMainWindow
{
Q_OBJECT
public:
explicit StudyWindow(QWidget *parent = 0);
~StudyWindow();
private:
Ui::StudyWindow *ui;
};
#endif // STUDYWINDOW_H


ui_Study.h

/********************************************************************************
** Form generated from reading UI file 'Study.ui'
**
** Created: Tue 20. Mar 20:10:56 2012
** by: Qt User Interface Compiler version 4.7.4
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/
#ifndef UI_STUDY_H
#define UI_STUDY_H
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
QT_BEGIN_NAMESPACE
class Ui_StudyWindow
{
public:
QAction *actionVoltar;
QAction *actionSair;
QWidget *centralwidget;
QTreeWidget *treeWidget;
QPushButton *pushButton;
QMenuBar *menubar;
QMenu *menuVoltar;
QStatusBar *statusbar;
void setupUi(QMainWindow *MainWindow)
{
if (MainWindow->objectName().isEmpty())
MainWindow->setObjectName(QString::fromUtf8("MainWindow"));
MainWindow->resize(800, 600);
actiOnVoltar= new QAction(MainWindow);
actionVoltar->setObjectName(QString::fromUtf8("actionVoltar"));
actiOnSair= new QAction(MainWindow);
actionSair->setObjectName(QString::fromUtf8("actionSair"));
centralwidget = new QWidget(MainWindow);
centralwidget->setObjectName(QString::fromUtf8("centralwidget"));
treeWidget = new QTreeWidget(centralwidget);
QFont font;
font.setPointSize(8);
font.setBold(true);
font.setWeight(75);
QTreeWidgetItem *__qtreewidgetitem = new QTreeWidgetItem();
__qtreewidgetitem->setFont(0, font);
treeWidget->setHeaderItem(__qtreewidgetitem);
new QTreeWidgetItem(treeWidget);
new QTreeWidgetItem(treeWidget);
new QTreeWidgetItem(treeWidget);
new QTreeWidgetItem(treeWidget);
new QTreeWidgetItem(treeWidget);
new QTreeWidgetItem(treeWidget);
new QTreeWidgetItem(treeWidget);
new QTreeWidgetItem(treeWidget);
new QTreeWidgetItem(treeWidget);
new QTreeWidgetItem(treeWidget);
treeWidget->setObjectName(QString::fromUtf8("treeWidget"));
treeWidget->setGeometry(QRect(0, 110, 161, 451));
pushButton = new QPushButton(centralwidget);
pushButton->setObjectName(QString::fromUtf8("pushButton"));
pushButton->setGeometry(QRect(0, 0, 75, 23));
MainWindow->setCentralWidget(centralwidget);
menubar = new QMenuBar(MainWindow);
menubar->setObjectName(QString::fromUtf8("menubar"));
menubar->setGeometry(QRect(0, 0, 800, 21));
menuVoltar = new QMenu(menubar);
menuVoltar->setObjectName(QString::fromUtf8("menuVoltar"));
MainWindow->setMenuBar(menubar);
statusbar = new QStatusBar(MainWindow);
statusbar->setObjectName(QString::fromUtf8("statusbar"));
MainWindow->setStatusBar(statusbar);
menubar->addAction(menuVoltar->menuAction());
menuVoltar->addAction(actionVoltar);
menuVoltar->addSeparator();
menuVoltar->addAction(actionSair);
retranslateUi(MainWindow);
QMetaObject::connectSlotsByName(MainWindow);
} // setupUi
void retranslateUi(QMainWindow *MainWindow)
{
MainWindow->setWindowTitle(QApplication::translate("MainWindow", "MainWindow", 0, QApplication::UnicodeUTF8));
actionVoltar->setText(QApplication::translate("MainWindow", "Voltar", 0, QApplication::UnicodeUTF8));
actionSair->setText(QApplication::translate("MainWindow", "Sair", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem = treeWidget->headerItem();
___qtreewidgetitem->setText(1, QApplication::translate("MainWindow", "Items", 0, QApplication::UnicodeUTF8));
___qtreewidgetitem->setText(0, QApplication::translate("MainWindow", "Mat\303\251ria", 0, QApplication::UnicodeUTF8));
const bool __sortingEnabled = treeWidget->isSortingEnabled();
treeWidget->setSortingEnabled(false);
QTreeWidgetItem *___qtreewidgetitem1 = treeWidget->topLevelItem(0);
___qtreewidgetitem1->setText(0, QApplication::translate("MainWindow", "Portugu\303\252s", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem2 = treeWidget->topLevelItem(1);
___qtreewidgetitem2->setText(0, QApplication::translate("MainWindow", "Reda\303\247\303\243o", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem3 = treeWidget->topLevelItem(2);
___qtreewidgetitem3->setText(0, QApplication::translate("MainWindow", "Matem\303\241tica", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem4 = treeWidget->topLevelItem(3);
___qtreewidgetitem4->setText(0, QApplication::translate("MainWindow", "Biologia", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem5 = treeWidget->topLevelItem(4);
___qtreewidgetitem5->setText(0, QApplication::translate("MainWindow", "F\303\255sica", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem6 = treeWidget->topLevelItem(5);
___qtreewidgetitem6->setText(0, QApplication::translate("MainWindow", "Qu\303\255mica", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem7 = treeWidget->topLevelItem(6);
___qtreewidgetitem7->setText(0, QApplication::translate("MainWindow", "Hist\303\263ria", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem8 = treeWidget->topLevelItem(7);
___qtreewidgetitem8->setText(0, QApplication::translate("MainWindow", "Geografia", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem9 = treeWidget->topLevelItem(8);
___qtreewidgetitem9->setText(0, QApplication::translate("MainWindow", "Ingl\303\252s", 0, QApplication::UnicodeUTF8));
QTreeWidgetItem *___qtreewidgetitem10 = treeWidget->topLevelItem(9);
___qtreewidgetitem10->setText(0, QApplication::translate("MainWindow", "Espanhol", 0, QApplication::UnicodeUTF8));
treeWidget->setSortingEnabled(__sortingEnabled);
pushButton->setText(QApplication::translate("MainWindow", "Cansei!", 0, QApplication::UnicodeUTF8));
menuVoltar->setTitle(QApplication::translate("MainWindow", "Arquivo", 0, QApplication::UnicodeUTF8));
} // retranslateUi
};
namespace Ui {
class StudyWindow: public Ui_StudyWindow {};
} // namespace Ui
QT_END_NAMESPACE
#endif // UI_STUDY_H


ui_mainwindow.h

/********************************************************************************
** Form generated from reading UI file 'mainwindow.ui'
**
** Created: Tue 20. Mar 20:10:56 2012
** by: Qt User Interface Compiler version 4.7.4
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/
#ifndef UI_MAINWINDOW_H
#define UI_MAINWINDOW_H
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
QT_BEGIN_NAMESPACE
class Ui_MainWindow
{
public slots:
public:
QAction *actionAjuda;
QAction *actionLista_de;
QAction *actionSair;
QWidget *centralwidget;
QPushButton *pshBStudy;
QPushButton *pshBSimulator;
QPushButton *pshBExamCalen;
QPushButton *pshBReadOfDay;
QLabel *labelTitle;
QPlainTextEdit *plainTextNews;
QLabel *labelNews;
QGroupBox *groupBox;
QLabel *labelCollege;
QLabel *labelCourse;
QLabel *labelMemSince;
QLabel *labelLoggedWith;
QLabel *labelBP;
QStatusBar *statusbar;
QMenuBar *menuBar;
QMenu *menuArquivo;
void setupUi(QMainWindow *MainWindow)
{
if (MainWindow->objectName().isEmpty())
MainWindow->setObjectName(QString::fromUtf8("MainWindow"));
MainWindow->resize(800, 600);
QSizePolicy sizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
sizePolicy.setHorizontalStretch(0);
sizePolicy.setVerticalStretch(0);
sizePolicy.setHeightForWidth(MainWindow->sizePolicy().hasHeightForWidth());
MainWindow->setSizePolicy(sizePolicy);
actiOnAjuda= new QAction(MainWindow);
actionAjuda->setObjectName(QString::fromUtf8("actionAjuda"));
actionLista_de = new QAction(MainWindow);
actionLista_de->setObjectName(QString::fromUtf8("actionLista_de"));
actiOnSair= new QAction(MainWindow);
actionSair->setObjectName(QString::fromUtf8("actionSair"));
centralwidget = new QWidget(MainWindow);
centralwidget->setObjectName(QString::fromUtf8("centralwidget"));
pshBStudy = new QPushButton(centralwidget);
pshBStudy->setObjectName(QString::fromUtf8("pshBStudy"));
pshBStudy->setGeometry(QRect(140, 120, 161, 81));
pshBStudy->setDefault(true);
pshBSimulator = new QPushButton(centralwidget);
pshBSimulator->setObjectName(QString::fromUtf8("pshBSimulator"));
pshBSimulator->setGeometry(QRect(530, 120, 161, 81));
pshBExamCalen = new QPushButton(centralwidget);
pshBExamCalen->setObjectName(QString::fromUtf8("pshBExamCalen"));
pshBExamCalen->setGeometry(QRect(140, 260, 161, 81));
pshBReadOfDay = new QPushButton(centralwidget);
pshBReadOfDay->setObjectName(QString::fromUtf8("pshBReadOfDay"));
pshBReadOfDay->setGeometry(QRect(530, 260, 161, 81));
labelTitle = new QLabel(centralwidget);
labelTitle->setObjectName(QString::fromUtf8("labelTitle"));
labelTitle->setGeometry(QRect(200, 10, 431, 71));
QFont font;
font.setPointSize(23);
labelTitle->setFont(font);
plainTextNews = new QPlainTextEdit(centralwidget);
plainTextNews->setObjectName(QString::fromUtf8("plainTextNews"));
plainTextNews->setGeometry(QRect(610, 440, 181, 111));
plainTextNews->setReadOnly(true);
labelNews = new QLabel(centralwidget);
labelNews->setObjectName(QString::fromUtf8("labelNews"));
labelNews->setGeometry(QRect(610, 420, 81, 16));
groupBox = new QGroupBox(centralwidget);
groupBox->setObjectName(QString::fromUtf8("groupBox"));
groupBox->setGeometry(QRect(0, 460, 431, 91));
labelCollege = new QLabel(groupBox);
labelCollege->setObjectName(QString::fromUtf8("labelCollege"));
labelCollege->setGeometry(QRect(230, 50, 111, 16));
labelCourse = new QLabel(groupBox);
labelCourse->setObjectName(QString::fromUtf8("labelCourse"));
labelCourse->setGeometry(QRect(230, 30, 111, 16));
labelMemSince = new QLabel(groupBox);
labelMemSince->setObjectName(QString::fromUtf8("labelMemSince"));
labelMemSince->setGeometry(QRect(10, 50, 111, 16));
labelLoggedWith = new QLabel(groupBox);
labelLoggedWith->setObjectName(QString::fromUtf8("labelLoggedWith"));
labelLoggedWith->setGeometry(QRect(10, 30, 111, 16));
labelBP = new QLabel(groupBox);
labelBP->setObjectName(QString::fromUtf8("labelBP"));
labelBP->setGeometry(QRect(10, 70, 111, 16));
MainWindow->setCentralWidget(centralwidget);
statusbar = new QStatusBar(MainWindow);
statusbar->setObjectName(QString::fromUtf8("statusbar"));
MainWindow->setStatusBar(statusbar);
menuBar = new QMenuBar(MainWindow);
menuBar->setObjectName(QString::fromUtf8("menuBar"));
menuBar->setGeometry(QRect(0, 0, 800, 21));
menuArquivo = new QMenu(menuBar);
menuArquivo->setObjectName(QString::fromUtf8("menuArquivo"));
MainWindow->setMenuBar(menuBar);
QWidget::setTabOrder(pshBStudy, pshBSimulator);
QWidget::setTabOrder(pshBSimulator, pshBExamCalen);
QWidget::setTabOrder(pshBExamCalen, pshBReadOfDay);
QWidget::setTabOrder(pshBReadOfDay, plainTextNews);
menuBar->addAction(menuArquivo->menuAction());
menuArquivo->addAction(actionSair);
retranslateUi(MainWindow);
QMetaObject::connectSlotsByName(MainWindow);
} // setupUi
void retranslateUi(QMainWindow *MainWindow)
{
MainWindow->setWindowTitle(QApplication::translate("MainWindow", "MainWindow", 0, QApplication::UnicodeUTF8));
actionAjuda->setText(QApplication::translate("MainWindow", "Sobre...", 0, QApplication::UnicodeUTF8));
actionLista_de->setText(QApplication::translate("MainWindow", "Lista de Provas", 0, QApplication::UnicodeUTF8));
actionSair->setText(QApplication::translate("MainWindow", "Sair...", 0, QApplication::UnicodeUTF8));
pshBStudy->setText(QApplication::translate("MainWindow", "Estudar!", 0, QApplication::UnicodeUTF8));
pshBSimulator->setText(QApplication::translate("MainWindow", "Simulado", 0, QApplication::UnicodeUTF8));
pshBExamCalen->setText(QApplication::translate("MainWindow", "Calend\303\241rio de Provas", 0, QApplication::UnicodeUTF8));
pshBReadOfDay->setText(QApplication::translate("MainWindow", "Leitura do Dia", 0, QApplication::UnicodeUTF8));
labelTitle->setText(QApplication::translate("MainWindow", "Escolha o que quer fazer hoje: ", 0, QApplication::UnicodeUTF8));
labelNews->setText(QApplication::translate("MainWindow", "Novidades:", 0, QApplication::UnicodeUTF8));
groupBox->setTitle(QApplication::translate("MainWindow", "Informa\303\247\303\265es", 0, QApplication::UnicodeUTF8));
labelCollege->setText(QApplication::translate("MainWindow", "Faculdade:", 0, QApplication::UnicodeUTF8));
labelCourse->setText(QApplication::translate("MainWindow", "Curso Pretendido:", 0, QApplication::UnicodeUTF8));
labelMemSince->setText(QApplication::translate("MainWindow", "Membro desde:", 0, QApplication::UnicodeUTF8));
labelLoggedWith->setText(QApplication::translate("MainWindow", "Voc\303\252 esta logado com: ", 0, QApplication::UnicodeUTF8));
labelBP->setText(QApplication::translate("MainWindow", "BP: ", 0, QApplication::UnicodeUTF8));
menuArquivo->setTitle(QApplication::translate("MainWindow", "Arquivo", 0, QApplication::UnicodeUTF8));
} // retranslateUi
};
namespace Ui {
class MainWindow: public Ui_MainWindow {};
} // namespace Ui
QT_END_NAMESPACE
#endif // UI_MAINWINDOW_H


解决方法:

您可以使用信号和插槽机制,为此请查看以下文档..

http://qt-project.org/doc/qt-4.8/signalsandslots.html

现在,您可以将一个窗口的信号连接到另一个窗口,并在另一个窗口的插槽中显示另一个窗口并隐藏前一个窗口.