qt学习(三) qt布局

使用横向与竖向、网格三种布局嵌套使用后可以组合出很复杂的界面。

这里向大家推荐这篇博客

http://www.cnblogs.com/Bonker/p/3454956.html

我这里使用布局做了一个对话框界面 作为练习

代码如下

qt5

QT creater创建一个Widgets application

不过没有使用该工程的UI

修改main.cpp

//#include "mainwindow.h"
#include <QApplication>
#include "QTestDialog.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    TestDialog* tdialog = new TestDialog;
    tdialog->show();
    return a.exec();
}

添加　

QTestDialog.h

QTestDialog.cpp

#ifndef QTESTDIALOG_H
#define QTESTDIALOG_H

#include <QDialog>
#include <QTextEdit>
#include <QPushButton>
#include <QLayout>

class TestDialog:public QDialog
{
    Q_OBJECT
public:
    TestDialog(QWidget *parent = 0);
private:
    QTextEdit* textEdit_1;
    QTextEdit* textEdit_2;
    QTextEdit* textEdit_3;
    QPushButton* pushButton_1;
    QPushButton* pushButton_2;
    QPushButton* pushButton_3;
    QPushButton* pushButton_4;
    QPushButton* pushButton_5;
};
#endif // QTESTDIALOG_H

　　

#include <QApplication>
#include "qtestdialog.h"

TestDialog::TestDialog(QWidget *parent)
    : QDialog(parent)
{
    pushButton_1 = new QPushButton(tr("字体"));
    pushButton_2 = new QPushButton(tr("大小"));
    pushButton_3 = new QPushButton(tr("消息记录"));

    QHBoxLayout* toolLayout = new QHBoxLayout;
    toolLayout->addWidget(pushButton_1);
    toolLayout->addWidget(pushButton_2);
    toolLayout->addStretch();
    toolLayout->addWidget(pushButton_3);

    pushButton_4 = new QPushButton(tr("关闭"));
    pushButton_5 = new QPushButton(tr("发送"));
    QHBoxLayout* buttomLayout = new QHBoxLayout;
    buttomLayout->addStretch();
    buttomLayout->addWidget(pushButton_4);
    buttomLayout->addWidget(pushButton_5);

    textEdit_1 = new QTextEdit;
    textEdit_2 = new QTextEdit;
    textEdit_2->setMaximumHeight(90);
    QVBoxLayout* leftlayout = new QVBoxLayout;
    leftlayout->addWidget(textEdit_1);
    leftlayout->addLayout(toolLayout);
    leftlayout->addWidget(textEdit_2);
    leftlayout->addLayout(buttomLayout);

    textEdit_3 = new QTextEdit;
    textEdit_3->setMaximumWidth(100);
    QVBoxLayout* rightlayout = new QVBoxLayout;
    rightlayout->addWidget(textEdit_3);

    QHBoxLayout* toplayout = new QHBoxLayout;
    toplayout->addLayout(leftlayout);
    toplayout->addLayout(rightlayout);

    QHBoxLayout *mainLayout = new QHBoxLayout;
    mainLayout->addLayout(toplayout);
    setLayout(mainLayout);

}

　　

　最后效果图