Qt学习——布局管理器QLayout类

http://blog.csdn.net/a649518776/article/details/6648120

常用的布局管理有QVBoxLayout，QHBoxLayout，QGridLayout。

下面是综合应用：



新建Qt Gui程序，基类为Dialog

头文件：

#ifndef DIALOG_H

#define DIALOG_H

#include <QtGui/QDialog>

#include <QLabel>

#include <QLineEdit>

#include <QTextEdit>

#include <QComboBox>

#include <QGridLayout>

#include <QPushButton>

#include <QHBoxLayout>

#include <QVBoxLayout>

class Dialog : public QDialog

{

Q_OBJECT

public:

Dialog(QWidget *parent = 0);

~Dialog();

private:

//左侧的控件

QLabel *UserLabel;

QLabel *NameLabel;

QLabel *SexLabel;

QLabel *DepartLabel;

QLabel *AgeLabel;

QLabel *OtherLabel;

QLineEdit *UserLineEdit;

QLineEdit *NameLineEdit;

QComboBox *SexComboBox;

QTextEdit *DepartTextEdit;

QLineEdit *AgeLineEdit;

QGridLayout *LeftGridLayout;

//右上角

QLabel *HeadLabel;

QLabel *HeadIconLabel;

QPushButton *UpdateHeadBtn;

QHBoxLayout *RightTopHBLayout;

//右下角

QLabel *IntroLabel;

QTextEdit *IntroTextEdit;

QVBoxLayout *RightVBLayout;

//底部

QPushButton *OkBtn;

QPushButton *CancelBtn;

QHBoxLayout *ButtomHBLayout;

};

#endif // DIALOG_H

源文件：

#include "dialog.h"

Dialog::Dialog(QWidget *parent)

: QDialog(parent)

{

//××××××××××××初始化×××××××××××××××

setWindowTitle(tr("UserInfo"));

UserLabel=new QLabel(tr("用户名："));

UserLineEdit=new QLineEdit;

NameLabel=new QLabel(tr("姓名："));

NameLineEdit=new QLineEdit;

SexLabel=new QLabel(tr("性别："));

SexComboBox=new QComboBox;

SexComboBox->addItem(tr("男"));

SexComboBox->addItem(tr("女"));

DepartLabel=new QLabel(tr("部门"));

DepartTextEdit=new QTextEdit;

AgeLabel=new QLabel(tr("年龄"));

AgeLineEdit=new QLineEdit;

OtherLabel=new QLabel(tr("备注"));

OtherLabel->setFrameStyle(QFrame::Panel|QFrame::Sunken);

//××××××××××××添加左侧××××××××××××××

LeftGridLayout=new QGridLayout();

LeftGridLayout->addWidget(UserLabel,0,0);

LeftGridLayout->addWidget(UserLineEdit,0,1);

LeftGridLayout->addWidget(NameLabel,1,0);

LeftGridLayout->addWidget(NameLineEdit,1,1);

LeftGridLayout->addWidget(SexLabel,2,0);

LeftGridLayout->addWidget(SexComboBox,2,1);

LeftGridLayout->addWidget(DepartLabel,3,0);

LeftGridLayout->addWidget(DepartTextEdit,3,1);

LeftGridLayout->addWidget(AgeLabel,4,0);

LeftGridLayout->addWidget(AgeLineEdit,4,1);

LeftGridLayout->addWidget(OtherLabel,5,0,1,2);

LeftGridLayout->setColumnStretch(0,1);

LeftGridLayout->setColumnStretch(1,3);

//×××××××××××××添加右上角×××××××××××××××

HeadLabel=new QLabel(tr("头像："));

HeadIconLabel=new QLabel;

QPixmap icon("1.bmp");

HeadIconLabel->setPixmap(icon);

HeadIconLabel->resize(icon.width(),icon.height());

UpdateHeadBtn=new QPushButton(tr("更新"));

RightTopHBLayout=new QHBoxLayout;

RightTopHBLayout->setSpacing(20);

RightTopHBLayout->addWidget(HeadLabel);

RightTopHBLayout->addWidget(HeadIconLabel);

RightTopHBLayout->addWidget(UpdateHeadBtn);

//×××××××××××××添加右下角×××××××××××××××

IntroLabel=new QLabel(tr("个人说明："));

IntroTextEdit=new QTextEdit;

RightVBLayout=new QVBoxLayout();

RightVBLayout->setMargin(10);

RightVBLayout->addLayout(RightTopHBLayout);

RightVBLayout->addWidget(IntroLabel);

RightVBLayout->addWidget(IntroTextEdit);

//×××××××××××××添加底部×××××××××××××××

OkBtn=new QPushButton(tr("确定"));

CancelBtn=new QPushButton(tr("取消"));

ButtomHBLayout=new QHBoxLayout();

ButtomHBLayout->addStretch();

ButtomHBLayout->addWidget(OkBtn);

ButtomHBLayout->addWidget(CancelBtn);

//×××××××××××××设置主窗体×××××××××××××××

QGridLayout *mainLayout=new QGridLayout(this);

mainLayout->setMargin(15);

mainLayout->setSpacing(10);

mainLayout->addLayout(LeftGridLayout,0,0);

mainLayout->addLayout(RightVBLayout,0,1);

mainLayout->addLayout(ButtomHBLayout,1,0,1,2);

mainLayout->setSizeConstraint(QLayout::SetFixedSize);

connect(OkBtn,SIGNAL(clicked()),this,SLOT(accept()));

connect(CancelBtn,SIGNAL(clicked()),this,SLOT(reject()));

}

Dialog::~Dialog()

{

}