这种方法只需要在Design生成的文件中加一个父类就可以了，相当实用。并不需要过多修改Design生成的原代码。
先用Design建一个窗体如下：
<ui version="4.0" >
<author></author>
<comment></comment>
<exportmacro></exportmacro>
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow" >
<property name="geometry" >
<rect>
<x>0</x>
<y>0</y>
<width>464</width>
<height>332</height>
</rect>
</property>
<property name="windowTitle" >
<string>MainWindow</string>
</property>
<property name="windowIcon" >
<iconset/>
</property>
<property name="windowIconText" >
<string>333</string>
</property>
<property name="windowModified" >
<bool>true</bool>
</property>
<widget class="QWidget" name="centralWidget" >
<widget class="QTextEdit" name="textEdit" >
<property name="geometry" >
<rect>
<x>10</x>
<y>20</y>
<width>441</width>
<height>261</height>
</rect>
</property>
<property name="sizePolicy" >
<sizepolicy>
<hsizetype>4</hsizetype>
<vsizetype>4</vsizetype>
<horstretch>1</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="frameShape" >
<enum>QFrame::WinPanel</enum>
</property>
<property name="frameShadow" >
<enum>QFrame::Plain</enum>
</property>
<property name="verticalScrollBarPolicy" >
<enum>Qt::ScrollBarAsNeeded</enum>
</property>
<property name="documentTitle" >
<string>222</string>
</property>
<property name="lineWrapMode" >
<enum>QTextEdit::WidgetWidth</enum>
</property>
</widget>
<widget class="QPushButton" name="pushButton" >
<property name="geometry" >
<rect>
<x>154</x>
<y>290</y>
<width>101</width>
<height>23</height>
</rect>
</property>
<property name="text" >
<string>UseDefButton</string>
</property>
</widget>
</widget>
</widget>
<pixmapfunction></pixmapfunction>
<resources/>
<connections/>
</ui>
然后把它生成一个叫a.h的文件，如下
#ifndef FORM1_H
#define FORM1_H
#include <QtCore/QVariant>
#include <QtGui/QAction>
#include <QtGui/QApplication>
#include <QtGui/QButtonGroup>
#include <QtGui/QMainWindow>
#include <QtGui/QPushButton>
#include <QtGui/QTextEdit>
#include <QtGui/QWidget>
class Ui_MainWindow:public QMainWindow//把这个类作为QMainWindow的派生类，不然moc不能正确处理
{
public:
QWidget *centralWidget;
QTextEdit *textEdit;
QPushButton *pushButton;
void setupUi(QMainWindow *MainWindow)
{
MainWindow->setObjectName(QString::fromUtf8("MainWindow"));
MainWindow->resize(QSize(464, 332).expandedTo(MainWindow->minimumSizeHint()));
MainWindow->setWindowIcon(QPixmap());
MainWindow->setWindowModified(true);
centralWidget = new QWidget(MainWindow);
centralWidget->setObjectName(QString::fromUtf8("centralWidget"));
textEdit = new QTextEdit(centralWidget);
textEdit->setObjectName(QString::fromUtf8("textEdit"));
textEdit->setGeometry(QRect(10, 20, 441, 261));
QSizePolicy sizePolicy((QSizePolicy::Policy)4, (QSizePolicy::Policy)4);
sizePolicy.setHorizontalStretch(1);
sizePolicy.setVerticalStretch(0);
sizePolicy.setHeightForWidth(textEdit->sizePolicy().hasHeightForWidth());
textEdit->setSizePolicy(sizePolicy);
textEdit->setFrameShape(QFrame::WinPanel);
textEdit->setFrameShadow(QFrame::Plain);
textEdit->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
textEdit->setLineWrapMode(QTextEdit::WidgetWidth);
pushButton = new QPushButton(centralWidget);
pushButton->setObjectName(QString::fromUtf8("pushButton"));
pushButton->setGeometry(QRect(154, 290, 101, 23));
MainWindow->setCentralWidget(centralWidget);
retranslateUi(MainWindow);
QMetaObject::connectSlotsByName(MainWindow);
} // setupUi
void retranslateUi(QMainWindow *MainWindow)
{
MainWindow->setWindowTitle(QApplication::translate("MainWindow", "MainWindow"));
MainWindow->setWindowIconText(QApplication::translate("MainWindow", "333"));
textEdit->setDocumentTitle(QApplication::translate("MainWindow", "222"));
pushButton->setText(QApplication::translate("MainWindow", "UseDefButton"));
Q_UNUSED(MainWindow);
} // retranslateUi
};
namespace Ui {
class MainWindow: public Ui_MainWindow {};
} // namespace Ui
#endif // FORM1_H
手写一个b.h的适配器定义文件
#ifndef B_H
#define B_H
#include "a.h"
class TForm1:public Ui_MainWindow
{
Q_OBJECT
public:
TForm1();
public slots:
void TMessage();
};
#endif // B_H
然后在写一个适配器的实现b.cpp
#include <QMessageBox>
#include <QString>
#include "b.h"
TForm1::TForm1()
{
}
void TForm1::TMessage()
{
QMessageBox::information(NULL, "Application name",
"Unable to find the user preferences file.\n"
"The factory default will be used instead.");
}
我的signal和slot连接并没有写在适配器里，是在写调用函数里的
最后写一个main.cpp的主文件，如下
#include <QApplication>
#include <QtGui/QtGui>
#include "b.h"
int main(int argc, char **argv)
{
QApplication app(argc, argv);
QMainWindow form1;
TForm1 Main;
Main.setupUi(&form1);
QObject::connect(Main.pushButton, SIGNAL(clicked()),&Main, SLOT(TMessage()));
form1.show();
return app.exec();
}
编译执行就可以得到结果了。
以下给出全部源代码
[ 此贴被fanyu在2005-09-27 09:46重新编辑 ]
