简易qq对话框

//本程序由QT5 creator编译可运行
 //dialog.h
 1 #ifndef DIALOG_H
 #define DIALOG_H

 #include <QDialog>

 class Dialog : public QDialog
 {
     Q_OBJECT

 public:
     Dialog(QWidget *parent = );
     ~Dialog();
 };

 #endif // DIALOG_H

//drawer.h
 1 #ifndef DRAWER_H
 #define DRAWER_H
 #include <QToolBox>
 #include <QToolButton>

 class Drawer : public QToolBox
 {
     Q_OBJECT
 public:
     Drawer(QWidget *parent = , Qt::WindowFlags f = );
 private:
     QToolButton *toolBtn1_1;
     QToolButton *toolBtn1_2;
     QToolButton *toolBtn1_3;
     QToolButton *toolBtn1_4;
     QToolButton *toolBtn1_5;
     QToolButton *toolBtn2_1;
     QToolButton *toolBtn2_2;
     QToolButton *toolBtn3_1;
     QToolButton *toolBtn3_2;

 };

 #endif // DRAWER_H

//dialog.cpp
 1 #include "dialog.h"

 Dialog::Dialog(QWidget *parent)
     : QDialog(parent)
 {
 }

 Dialog::~Dialog()
 {

 }

//drawer.cpp
//代码中,图片与build-MyQQExample-Desktop_Qt_5_6_0_MinGW_32bit-Debug放置同一个文件夹下面
  1 #include "drawer.h"
 #include <QGroupBox>
 #include <QVBoxLayout>

 Drawer::Drawer(QWidget *parent, Qt::WindowFlags f)
     :QToolBox(parent, f)
 {
     setWindowTitle (tr("My QQ")); //设置主窗体的标题
     //创建一个QToolButton类实例,分别对应于抽屉中的每一个按钮
     toolBtn1_1 = new QToolButton;
     toolBtn1_1->setText (tr("张三"));          //设置按钮的文字
     toolBtn1_1->setIcon (QPixmap("11.png"));  //设置按钮的图标
     toolBtn1_1->setIconSize (QPixmap("11.png").size ());
     toolBtn1_1->setAutoRaise (true);          //当鼠标离开时,按钮自动恢复为弹起状态
     //设置按钮的ToolButtonStyle属性->主要用来描述按钮的文字和图标的显示方式.
     //Qt::ToolButtonTextBesideIcon-->文字在图标旁边
     toolBtn1_1->setToolButtonStyle (Qt::ToolButtonTextBesideIcon);
     toolBtn1_2 = new QToolButton;
     toolBtn1_2->setText (tr("李四"));
     toolBtn1_2->setIcon (QPixmap("12.png"));
     toolBtn1_2->setIconSize (QPixmap("12.png").size ());
     toolBtn1_2->setAutoRaise (true);
     toolBtn1_2->setToolButtonStyle (Qt::ToolButtonTextBesideIcon);
     toolBtn1_3 = new QToolButton;
     toolBtn1_3->setText (tr("王五"));
     toolBtn1_3->setIcon (QPixmap("13.png"));
     toolBtn1_3->setIconSize (QPixmap("13.png").size ());
     toolBtn1_3->setAutoRaise (true);
     toolBtn1_3->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
     toolBtn1_4 = new QToolButton;
     toolBtn1_4->setText(tr("小赵"));
     toolBtn1_4->setIcon(QPixmap("14.png"));
     toolBtn1_4->setIconSize(QPixmap("14.png").size());
     toolBtn1_4->setAutoRaise(true);
     toolBtn1_4->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
     toolBtn1_5 = new QToolButton;
     toolBtn1_5->setText(tr("小孙"));
     toolBtn1_5->setIcon(QPixmap("155.png"));
     toolBtn1_5->setIconSize(QPixmap("155.png").size());
     toolBtn1_5->setAutoRaise(true);
     toolBtn1_5->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
     //创建一个QGroupBox类实例,在本例中对应每一个抽屉.
     //QGroupBox *groupBox2 = new QGroupBox。。创建其余两栏抽屉
     QGroupBox *groupBox1 = new QGroupBox;
     //布局
     //用来设置抽屉内各个按钮的布局
     QVBoxLayout *layout1 = new QVBoxLayout(groupBox1);
     //布局中各个窗体显示间距
     layout1->setMargin ();
     //布局中各个窗体显示位置
     layout1->setAlignment (Qt::AlignLeft);
     //加入抽屉内的各个按钮
     layout1->addWidget (toolBtn1_1);
     layout1->addWidget (toolBtn1_2);
     layout1->addWidget (toolBtn1_3);
     layout1->addWidget (toolBtn1_4);
     layout1->addWidget (toolBtn1_5);
     //插入一个占位符-使所有按钮能靠上对齐,并且在整个抽屉大小发生改变时保证按钮大小不发生改变
     layout1->addStretch ();
     toolBtn2_1 = new QToolButton;
     toolBtn2_1->setText ("老王");
     toolBtn2_1->setIcon (QPixmap("21.png"));
     toolBtn2_1->setIconSize (QPixmap("21.png").size ());
     toolBtn2_1->setAutoRaise (true);
     toolBtn2_1->setToolButtonStyle (Qt::ToolButtonTextBesideIcon);
     toolBtn2_2 = new QToolButton;
     toolBtn2_2->setText (tr("小张"));
     toolBtn2_2->setIcon (QPixmap("22.png"));
     toolBtn2_2->setIconSize (QPixmap("22.png").size ());
     toolBtn2_2->setAutoRaise(true);
     toolBtn2_2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
     QGroupBox *groupBox2 = new QGroupBox;
     QVBoxLayout *layout2 = new QVBoxLayout(groupBox2);
     layout2->setMargin ();
     layout2->setAlignment (Qt::AlignLeft);
     layout2->addWidget (toolBtn2_1);
     layout2->addWidget (toolBtn2_2);
     toolBtn3_1 =new QToolButton;
     toolBtn3_1->setText(tr("小陈"));
     toolBtn3_1->setIcon(QPixmap("31.png"));
     toolBtn3_1->setIconSize(QPixmap("31.png").size());
     toolBtn3_1->setAutoRaise(true);
     toolBtn3_1->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
     toolBtn3_2 =new QToolButton;
     toolBtn3_2->setText(tr("小李"));
     toolBtn3_2->setIcon(QPixmap("32.png"));
     toolBtn3_2->setIconSize(QPixmap("32.png").size());
     toolBtn3_2->setAutoRaise(true);
     toolBtn3_2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
     QGroupBox *groupBox3=new QGroupBox;
     QVBoxLayout *layout3=new QVBoxLayout(groupBox3);
     layout3->setMargin();
     layout3->setAlignment(Qt::AlignLeft);
     layout3->addWidget(toolBtn3_1);
     layout3->addWidget(toolBtn3_2);
     //将准备好的抽屉插入ToolBox中
     this->addItem ((QWidget*)groupBox1, tr("我的好友"));
     this->addItem ((QWidget*)groupBox2, tr("陌生人"));
     this->addItem ((QWidget*)groupBox3, tr("黑名单"));
 }

//main.cpp
 1 #include "dialog.h"
 #include <QApplication>
 #include "drawer.h"

 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);

     Drawer drawer;
     drawer.show ();
     return a.exec();
 }

运行效果，如图所示.