Qt-QPushButton、QLineEdit、QLabel各种自定义样式外观

1.x

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#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QtWidgets>

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
Q_OBJECT

public:
Widget(QWidget *parent = nullptr);
~Widget();

private:
QCheckBox *checkbox;
QPushButton *button;
QLineEdit *lineEdit;
Ui::Widget *ui;
};
#endif // WIDGET_H

1.cpp

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#include "widget.h"
#include "ui_widget.h"
#include <QtWidgets>
Widget::Widget(QWidget *parent)
: QWidget(parent)
, ui(new Ui::Widget)
{
ui->setupUi(this);
setFixedSize(400,400);
checkbox = new QCheckBox(tr("TEST-A"));
button = new QPushButton(tr("TEST-B"));
lineEdit = new QLineEdit();
QVBoxLayout *vbox=new QVBoxLayout(this);
vbox->addWidget(checkbox);
vbox->addWidget(button);
vbox->addWidget(lineEdit);
}

Widget::~Widget()
{
delete ui;
}

main.cpp

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#include "widget.h"

#include <QApplication>

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
a.setStyleSheet("QCheckBox{ background-color: yellow;}"

"QCheckBox::indicator,QRadioButton::indicator{ width:30px; height:30px;}"
"QCheckBox,QRadioButton{spacing :10px;}"
//悬停之后的颜色
"QCheckBox:hover{color:blue;}"
//选中之后再悬停之后的颜色
"QCheckBox:check:hover{color:red;}"
"QCheckBox:check,QCheckBox:hover{color:red;}"

"QPushButton{ background-color: red; color: yellow;}"

"QLineEdit{color:rgb(127,0,63);"
"background-color:rgb(255,255,241);"
"selection-color:white;"
"selection-background-color:rgb(191,31,127);"
"border;2px groove gray;"
"border-radius:10px; "
"padding:2px 4px;}"

);

Widget w;
w.show();
return a.exec();
}

result：

2.h

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#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>
#include <QtWidgets>
QT_BEGIN_NAMESPACE
namespace Ui { class Dialog; }
QT_END_NAMESPACE

class Dialog : public QDialog
{
Q_OBJECT

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

private:
QLabel *label1;
QLabel *label2;
QGridLayout *layout1;
QLineEdit *lineEdit;
QPushButton *button;
Ui::Dialog *ui;
};
#endif // DIALOG_H

2.cpp

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#include "dialog.h"
#include "ui_dialog.h"
#include <QtWidgets>
Dialog::Dialog(QWidget *parent)
: QDialog(parent)
, ui(new Ui::Dialog)
{
ui->setupUi(this);
layout1=new QGridLayout(this);
label1 =new QLabel(this);
label2 =new QLabel(this);
//label1->setAlignment(Qt::AlignCenter);
label1->setText("666");
label2->setText("Qt,Qt,Qt!");

lineEdit =new QLineEdit(this);
//单独设置样式属性
//lineEdit->setStyleSheet("color:rgb(0,0,255);");

button = new QPushButton("this");

layout1->addWidget(label1,0,0);
layout1->addWidget(label2,0,1);
layout1->addWidget(lineEdit,1,0);
layout1->addWidget(button,1,1);
}

Dialog::~Dialog()
{
delete ui;
}

mian.cpp

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#include "dialog.h"

#include <QApplication>

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
Dialog w;
w.setStyleSheet(
"QDialog{background-image:url(C:/Users/xxx/Pictures/RGB.jpg);}"
"QLabel{font:20pt;color:rgb(0,0,127);border:1px solid red;}"

//字体和背景颜色
"QLineEdit{color:rgb(255,0,0);"
"background-color:rgb(255,255,127);"

//选中后字体颜色和字体背景色
"selection-color:white;"
"selection-background-color:rgb(0,0,255);"

"border:5px groove gray;"
"border-radius:10px; "
"padding:2px 4px;}"

"QPushButton{color :white;font:bold 10pt;border-image:url(C:/Users/xxx/Pictures/Qt0.jpg) 16;border-width:16px;"
"padding:-16px 0px;min-height:32px;min-width:60px;}"

"QPushButton:pressed{color:lightgray;border-image:url(C:/Users/xxx/Pictures/school.jpg) 16;padding-top:-15px;padding-bottom:-17px;}"
);
w.show();
return a.exec();
}

result：