QT using QSS to implement rounded corners dialog box

QT using QSS to implement rounded corners dialog box

Round Corner dialog box There are many ways, usually in the way of redrawing the code, more complex, this high imitation 360 interface to the code, more complex, put into my qdialog window always does not take effect:

MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent),ui(new Ui::MainWindow){ui->setupUi(this);setWindowFlags(Qt::FramelessWindowHint);//隐藏边框和标题栏//生成一张位图QBitmap objBitmap(size());//QPainter用于在位图上绘画QPainter painter(&objBitmap);//填充位图矩形框(用白色填充)painter.fillRect(rect(),Qt::white);painter.setBrush(QColor(0,0,0));//在位图上画圆角矩形(用黑色填充)painter.drawRoundedRect(this->rect(),5,5);//使用setmask过滤即可setMask(objBitmap);//设置背景QPalette pal;QPixmap pixmap(QDir::toNativeSeparators    (":/image/frame.png"));pal.setBrush(QPalette::Window, QBrush(pixmap));setPalette(pal);}

Simple implementation of rounded corners window

The actual discovery, can be simple through QT styleSheet to achieve this function, quite simple and easy to use.

The idea is to put the qdialog background transparent, and then put a rounded corner of the Qdialog Qframe can achieve the fillet effect!

2.1 Initialization dialog box

OnePicker::OnePicker(QWidget *parent) :RoundCornerPicker(parent),ui(new Ui::OnePicker){//    ui->setupUi(this);    setWindowFlags(Qt::FramelessWindowHint | Qt::Dialog);}

2.2 Setting the appropriate style

Where the style of the dialog box is

Border:none; Background-color:transparent;

Frame style used for straight-forward backgrounds

Border-image:url (:/resource/images/picker_bk.png);
border-width:1px 1px 1px 1px;
Border-style:solid;
Border-color:rgb (76,76,76);
border-radius:6px;

2.3 Global Style Sheet

You can put the above definitions into the global QSS style sheet, so that all dialogs automatically become the fillet moment table

   Qdialog {  border: none;  background-color: transparent; }   Qdialog #DialogBk { border-image:URL (:/resource/images/picker_bk.png)           ; border-width: 1px 1px 1px 1px ; border-style: solid ; border-color: rgb (+,+)  ; Border-radius:6px ;}

The final effect is as follows

Reasons for not making rounded corners of Qdialog directly

Why the use of qframe is caused by forcing the qdialog into a rounded background, still showing a four-week rectangular border, which is extremely unattractive.

QT using QSS to implement rounded corners dialog box