QT乱翻书-Spin
作者：互联网
QT乱翻书-Spin
#ifndef WIDGET_H
#define WIDGET_H
#include <QWidget>
namespace Ui {
class Widget;
}
class Widget : public QWidget
{
Q_OBJECT
public:
explicit Widget(QWidget *parent = 0);
~Widget();
private slots:
void on_btnCal_clicked(); //计算按键 clicked()响应
void on_btnDec_clicked();//读十进制数再用其他进制显示 的按键的 clicked()响应
void on_btnBin_clicked();//读二进制数再用其他进制显示 的按键的 clicked()响应
void on_btnHex_clicked();//读十六进制数再用其他进制显示 的按键的 clicked()响应
private:
Ui::Widget *ui;
};
#endif // WIDGET_H
/********************************************************************************
** Form generated from reading UI file 'widget.ui'
**
** Created by: Qt User Interface Compiler version 5.9.1
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/
#ifndef UI_WIDGET_H
#define UI_WIDGET_H
#include <QtCore/QVariant>
#include <QtWidgets/QAction>
#include <QtWidgets/QApplication>
#include <QtWidgets/QButtonGroup>
#include <QtWidgets/QDoubleSpinBox>
#include <QtWidgets/QGridLayout>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QLabel>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QSpacerItem>
#include <QtWidgets/QSpinBox>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QWidget>
QT_BEGIN_NAMESPACE
class Ui_Widget
{
public:
QVBoxLayout *verticalLayout;
QGridLayout *gridLayout;
QLabel *label_3;
QDoubleSpinBox *spinTotal;
QSpinBox *spinNum;
QDoubleSpinBox *spinPrice;
QLabel *label_2;
QLabel *label;
QPushButton *btnCal;
QSpacerItem *verticalSpacer;
QGridLayout *gridLayout_2;
QLabel *label_6;
QLabel *label_7;
QPushButton *btnBin;
QLabel *label_8;
QPushButton *btnDec;
QPushButton *btnHex;
QSpacerItem *horizontalSpacer_2;
QSpinBox *spinDec;
QSpinBox *spinBin;
QSpinBox *spinHex;
void setupUi(QWidget *Widget)
{
if (Widget->objectName().isEmpty())
Widget->setObjectName(QStringLiteral("Widget"));
Widget->resize(303, 172);
QFont font;
font.setFamily(QString::fromUtf8("\345\256\213\344\275\223"));
font.setPointSize(10);
Widget->setFont(font);
verticalLayout = new QVBoxLayout(Widget);
verticalLayout->setSpacing(6);
verticalLayout->setContentsMargins(11, 11, 11, 11);
verticalLayout->setObjectName(QStringLiteral("verticalLayout"));
gridLayout = new QGridLayout();
gridLayout->setSpacing(6);
gridLayout->setObjectName(QStringLiteral("gridLayout"));
label_3 = new QLabel(Widget);
label_3->setObjectName(QStringLiteral("label_3"));
label_3->setAlignment(Qt::AlignCenter);
gridLayout->addWidget(label_3, 1, 2, 1, 1);
spinTotal = new QDoubleSpinBox(Widget);
spinTotal->setObjectName(QStringLiteral("spinTotal"));
spinTotal->setMaximum(100000);
gridLayout->addWidget(spinTotal, 1, 3, 1, 1);
spinNum = new QSpinBox(Widget);
spinNum->setObjectName(QStringLiteral("spinNum"));
spinNum->setFrame(true);
spinNum->setButtonSymbols(QAbstractSpinBox::UpDownArrows);
spinNum->setProperty("showGroupSeparator", QVariant(false));
spinNum->setMaximum(1000);
spinNum->setValue(4);
gridLayout->addWidget(spinNum, 0, 1, 1, 1);
spinPrice = new QDoubleSpinBox(Widget);
spinPrice->setObjectName(QStringLiteral("spinPrice"));
spinPrice->setMinimumSize(QSize(90, 0));
spinPrice->setMaximum(10000);
spinPrice->setValue(12.43);
gridLayout->addWidget(spinPrice, 0, 3, 1, 1);
label_2 = new QLabel(Widget);
label_2->setObjectName(QStringLiteral("label_2"));
label_2->setAlignment(Qt::AlignCenter);
gridLayout->addWidget(label_2, 0, 2, 1, 1);
label = new QLabel(Widget);
label->setObjectName(QStringLiteral("label"));
label->setAlignment(Qt::AlignCenter);
gridLayout->addWidget(label, 0, 0, 1, 1);
btnCal = new QPushButton(Widget);
btnCal->setObjectName(QStringLiteral("btnCal"));
gridLayout->addWidget(btnCal, 1, 1, 1, 1);
verticalLayout->addLayout(gridLayout);
verticalSpacer = new QSpacerItem(20, 40, QSizePolicy::Minimum, QSizePolicy::Expanding);
verticalLayout->addItem(verticalSpacer);
gridLayout_2 = new QGridLayout();
gridLayout_2->setSpacing(6);
gridLayout_2->setObjectName(QStringLiteral("gridLayout_2"));
label_6 = new QLabel(Widget);
label_6->setObjectName(QStringLiteral("label_6"));
label_6->setMinimumSize(QSize(0, 0));
label_6->setAlignment(Qt::AlignCenter);
gridLayout_2->addWidget(label_6, 0, 0, 1, 1);
label_7 = new QLabel(Widget);
label_7->setObjectName(QStringLiteral("label_7"));
label_7->setAlignment(Qt::AlignCenter);
gridLayout_2->addWidget(label_7, 1, 0, 1, 1);
btnBin = new QPushButton(Widget);
btnBin->setObjectName(QStringLiteral("btnBin"));
gridLayout_2->addWidget(btnBin, 1, 3, 1, 1);
label_8 = new QLabel(Widget);
label_8->setObjectName(QStringLiteral("label_8"));
label_8->setAlignment(Qt::AlignCenter);
gridLayout_2->addWidget(label_8, 2, 0, 1, 1);
btnDec = new QPushButton(Widget);
btnDec->setObjectName(QStringLiteral("btnDec"));
gridLayout_2->addWidget(btnDec, 0, 3, 1, 1);
btnHex = new QPushButton(Widget);
btnHex->setObjectName(QStringLiteral("btnHex"));
gridLayout_2->addWidget(btnHex, 2, 3, 1, 1);
horizontalSpacer_2 = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum);
gridLayout_2->addItem(horizontalSpacer_2, 1, 2, 1, 1);
spinDec = new QSpinBox(Widget);
spinDec->setObjectName(QStringLiteral("spinDec"));
spinDec->setMinimumSize(QSize(100, 0));
spinDec->setMaximum(255);
spinDec->setValue(12);
gridLayout_2->addWidget(spinDec, 0, 1, 1, 1);
spinBin = new QSpinBox(Widget);
spinBin->setObjectName(QStringLiteral("spinBin"));
spinBin->setMaximum(255);
spinBin->setDisplayIntegerBase(2);
gridLayout_2->addWidget(spinBin, 1, 1, 1, 1);
spinHex = new QSpinBox(Widget);
spinHex->setObjectName(QStringLiteral("spinHex"));
spinHex->setMaximum(255);
spinHex->setValue(12);
spinHex->setDisplayIntegerBase(16);
gridLayout_2->addWidget(spinHex, 2, 1, 1, 1);
verticalLayout->addLayout(gridLayout_2);
retranslateUi(Widget);
QMetaObject::connectSlotsByName(Widget);
} // setupUi
void retranslateUi(QWidget *Widget)
{
Widget->setWindowTitle(QApplication::translate("Widget", "SpinBox\346\265\213\350\257\225", Q_NULLPTR));
label_3->setText(QApplication::translate("Widget", "\346\200\273 \344\273\267", Q_NULLPTR));
spinTotal->setPrefix(QApplication::translate("Widget", "$ ", Q_NULLPTR));
spinNum->setSuffix(QApplication::translate("Widget", " kg", Q_NULLPTR));
spinPrice->setPrefix(QApplication::translate("Widget", "$ ", Q_NULLPTR));
label_2->setText(QApplication::translate("Widget", "\345\215\225 \344\273\267", Q_NULLPTR));
label->setText(QApplication::translate("Widget", "\346\225\260 \351\207\217", Q_NULLPTR));
btnCal->setText(QApplication::translate("Widget", "\350\256\241\347\256\227", Q_NULLPTR));
label_6->setText(QApplication::translate("Widget", "\345\215\201 \350\277\233 \345\210\266", Q_NULLPTR));
label_7->setText(QApplication::translate("Widget", "\344\272\214 \350\277\233 \345\210\266", Q_NULLPTR));
btnBin->setText(QApplication::translate("Widget", "\350\275\254\346\215\242\344\270\272\345\205\266\344\273\226\350\277\233\345\210\266", Q_NULLPTR));
label_8->setText(QApplication::translate("Widget", "\345\215\201\345\205\255\350\277\233\345\210\266", Q_NULLPTR));
btnDec->setText(QApplication::translate("Widget", "\350\275\254\346\215\242\344\270\272\345\205\266\344\273\226\350\277\233\345\210\266", Q_NULLPTR));
btnHex->setText(QApplication::translate("Widget", "\350\275\254\346\215\242\344\270\272\345\205\266\344\273\226\350\277\233\345\210\266", Q_NULLPTR));
spinDec->setSuffix(QString());
spinDec->setPrefix(QApplication::translate("Widget", "Dec ", Q_NULLPTR));
spinBin->setPrefix(QApplication::translate("Widget", "Bin ", Q_NULLPTR));
spinHex->setPrefix(QApplication::translate("Widget", "Hex ", Q_NULLPTR));
} // retranslateUi
};
namespace Ui {
class Widget: public Ui_Widget {};
} // namespace Ui
QT_END_NAMESPACE
#endif // UI_WIDGET_H
#include "widget.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
Widget w;
w.show();
return a.exec();
}
#include "widget.h"
#include "ui_widget.h"
#include <QString>
Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
//“数量”和“单价”两个SpinBox的valueChanged()信号与on_btnCal_clicked()槽关联
QObject::connect(ui->spinNum,SIGNAL(valueChanged(int)),this,SLOT(on_btnCal_clicked())); //
QObject::connect(ui->spinPrice,SIGNAL(valueChanged(double)),this,SLOT(on_btnCal_clicked()));
QObject::connect(ui->spinDec,SIGNAL(valueChanged(int)),
this,SLOT(on_btnDec_clicked()));//spinDec 十进制显示的SpinBox
QObject::connect(ui->spinBin,SIGNAL(valueChanged(int)),
this,SLOT(on_btnBin_clicked()));//spinBin 二进制显示的SpinBox
QObject::connect(ui->spinHex,SIGNAL(valueChanged(int)),
this,SLOT(on_btnHex_clicked()));//spinHex 十六进制显示的SpinBox
}
Widget::~Widget()
{
delete ui;
}
void Widget::on_btnCal_clicked()
{ //计算按键
int num=ui->spinNum->value(); //读取数量，直接是整数
float price=ui->spinPrice->value();//读取单价，直接是浮点数
float total=num*price;//相乘计算
ui->spinTotal->setValue(total); //直接显示浮点数
}
void Widget::on_btnDec_clicked()
{ //读取十进制，以其他进制显示
int val;
val=ui->spinDec->value();//读取十进制数
ui->spinBin->setValue(val); //设置数值即可，自动以二进制显示
ui->spinHex->setValue(val); //设置数值即可，自动以十六进制显示
}
void Widget::on_btnBin_clicked()
{ //读取二进制，以其他进制显示
int val=ui->spinBin->value();//读取spinBin里的二进制数，得到整数
ui->spinDec->setValue(val);//设置数值即可，自动以十进制显示
ui->spinHex->setValue(val);//设置数值即可，自动以十六进制显示
}
void Widget::on_btnHex_clicked()
{ //读取十六进制，以其他进制显示
int val;
val=ui->spinHex->value();//读取 spinHex 里的十六进制数，得到整数
ui->spinDec->setValue(val);//设置数值即可，自动以十进制显示
ui->spinBin->setValue(val);//设置数值即可，自动以二进制显示
}
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Widget</class>
<widget class="QWidget" name="Widget">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>442</width>
<height>238</height>
</rect>
</property>
<property name="font">
<font>
<family>宋体</family>
<pointsize>10</pointsize>
</font>
</property>
<property name="windowTitle">
<string>SpinBox测试</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<layout class="QGridLayout" name="gridLayout">
<item row="1" column="2">
<widget class="QLabel" name="label_3">
<property name="text">
<string>总 价</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="1" column="3">
<widget class="QDoubleSpinBox" name="spinTotal">
<property name="prefix">
<string>$ </string>
</property>
<property name="maximum">
<double>100000.000000000000000</double>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QSpinBox" name="spinNum">
<property name="frame">
<bool>true</bool>
</property>
<property name="buttonSymbols">
<enum>QAbstractSpinBox::UpDownArrows</enum>
</property>
<property name="showGroupSeparator" stdset="0">
<bool>false</bool>
</property>
<property name="suffix">
<string> kg</string>
</property>
<property name="maximum">
<number>1000</number>
</property>
<property name="value">
<number>4</number>
</property>
</widget>
</item>
<item row="0" column="3">
<widget class="QDoubleSpinBox" name="spinPrice">
<property name="minimumSize">
<size>
<width>90</width>
<height>0</height>
</size>
</property>
<property name="prefix">
<string>$ </string>
</property>
<property name="maximum">
<double>10000.000000000000000</double>
</property>
<property name="value">
<double>12.430000000000000</double>
</property>
</widget>
</item>
<item row="0" column="2">
<widget class="QLabel" name="label_2">
<property name="text">
<string>单 价</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="0" column="0">
<widget class="QLabel" name="label">
<property name="text">
<string>数 量</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QPushButton" name="btnCal">
<property name="text">
<string>计算</string>
</property>
</widget>
</item>
</layout>
</item>
<item>
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
<item>
<layout class="QGridLayout" name="gridLayout_2">
<item row="0" column="0">
<widget class="QLabel" name="label_6">
<property name="minimumSize">
<size>
<width>0</width>
<height>0</height>
</size>
</property>
<property name="text">
<string>十 进 制</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label_7">
<property name="text">
<string>二 进 制</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="1" column="3">
<widget class="QPushButton" name="btnBin">
<property name="text">
<string>转换为其他进制</string>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QLabel" name="label_8">
<property name="text">
<string>十六进制</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="0" column="3">
<widget class="QPushButton" name="btnDec">
<property name="text">
<string>转换为其他进制</string>
</property>
</widget>
</item>
<item row="2" column="3">
<widget class="QPushButton" name="btnHex">
<property name="text">
<string>转换为其他进制</string>
</property>
</widget>
</item>
<item row="1" column="2">
<spacer name="horizontalSpacer_2">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item row="0" column="1">
<widget class="QSpinBox" name="spinDec">
<property name="minimumSize">
<size>
<width>100</width>
<height>0</height>
</size>
</property>
<property name="suffix">
<string/>
</property>
<property name="prefix">
<string>Dec </string>
</property>
<property name="maximum">
<number>255</number>
</property>
<property name="value">
<number>12</number>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QSpinBox" name="spinBin">
<property name="prefix">
<string>Bin </string>
</property>
<property name="maximum">
<number>255</number>
</property>
<property name="displayIntegerBase">
<number>2</number>
</property>
</widget>
</item>
<item row="2" column="1">
<widget class="QSpinBox" name="spinHex">
<property name="prefix">
<string>Hex </string>
</property>
<property name="maximum">
<number>255</number>
</property>
<property name="value">
<number>12</number>
</property>
<property name="displayIntegerBase">
<number>16</number>
</property>
</widget>
</item>
</layout>
</item>
</layout>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources/>
<connections/>
</ui>
标签：setObjectName,Widget,QT,label,ui,翻书,gridLayout,new,Spin 来源： https://www.cnblogs.com/kanbuxiaqu/p/15685735.html