Qt版面配置管理（QLayout）-1

Qt設計視窗的版面規劃有兩種方式,一種是Qt設計器（Qt Designer）規劃,另外一種就是Qt版面配置管理器（QLayout）,我在這裡紀錄一下使用版面配置管理器程式範例.
範例1：增加按鈕（Push Button）,水平排版

1. Helloworld.pro

TARGET = helloworld

SOURCES += main.cpp \

    layoutdlg.cpp

HEADERS  += \

    layoutdlg.h

FORMS    += dialog.ui

2. main.cpp

#include <QtGui>

#include <QtCore>

#include "layoutdlg.h"

int main(int argc, char* argv[])

{

    QApplication app(argc, argv);

    layoutdlg helloworld;

    helloworld.show();

    return app.exec();

}

3. layoutdlg.cpp

#include <QtGui>

#include "layoutdlg.h"

layoutdlg::layoutdlg(QDialog *parent)

 : QDialog(parent)

{

    QPushButton *button1, *button2;

    button1 = new QPushButton(tr("YES"));

    button2 = new QPushButton(tr("NO"));

    QHBoxLayout *layout = new QHBoxLayout;

    layout->addWidget(button1);

    layout->addWidget(button2);

    setLayout(layout);

}

4. layoutdlg.h

#ifndef LAYOUTDLG_H

#define LAYOUTDLG_H

#include <QDialog>

class QPushButton;

class layoutdlg  :  public QDialog

{

    Q_OBJECT

public:

    layoutdlg(QDialog *parent = 0);

};

#endif // LAYOUTDLG_H

顯示結果：