Qt工作总结02 ＜设置工具栏ToolBar＞

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1. 代码

QToolBar * toolbar = new QToolBar(this);

QAction * btn1 = new QAction("btn1");
btn1->setIcon(QIcon(":/images/btn1.png"));
value->setCheckable(true);  //按钮按下弹起
toolbar ->addAction(btn1);

QAction * btn2 = new QAction("btn2");
btn2->setIcon(QIcon(":/images/btn2.png"));
value->setCheckable(true);
toolbar ->addAction(btn2);

//设置属性
toolbar->setFloatable(false);
toolbar->setMovable(false);
toolbar->setStyleSheet("border:none");
toolbar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);

//利用布局添加toolbar
ui->horizontalLayout1->addWidget(toolbar);
ui->horizontalLayout_5->setContentsMargins(0,0,0,0);  //控件和widget之间的边距
ui->horizontalLayout_5->setSpacing(10);  //控件和控件之间的间隔

//创建弹簧
QSpacerItem *spaceItem = new QSpacerItem(0,50,QSizePolicy::Expanding,QSizePolicy::Fixed);
spaceItem->setAlignment(Qt::AlignRight);
ui->horizontalLayout1->addSpacerItem(spaceItem);
ui->horizontalLayout1->setSpacing(0);

//功能链接
connect(btn1 , &QAction::triggered, this, [=]（bool checked）{
    QPalette palette;
    palette.setColor(QPalette::WindowText, Qt::red);
    ui->label->setAutoFillBackground(true);
    ui->label->setPalette(palette);
    ui->funcbtn1->setChecked(checked); //依据上述checked决定按钮funcbtn1的选中状态
});

2. QAction图标间隔

toolbar->layout()->setContentsMargins(10,10,10,10); //设置周围间隔
toolbar->layout()->setSpacing(20);  //设置部件之间的间隔