QT批量实现单选按钮组

自己开发了一个股票智能分析软件，功能很强大，需要的点击下面的链接获取：

https://www.cnblogs.com/bclshuai/p/11380657.html

QT批量实现单选按钮组

 

目录

1      应用场景... 1

2      实现方案... 1

1       应用场景

筛选条件过多时，会有多个条件筛选，选择样式是按钮形式，不是那种勾选。如下图所示，单选条件，有多选项， 每一个条件只能选择一个， 选中之后颜色加深，没选中的自动变为浅灰色。

 

2       实现方案

如果一个一个的在界面上去拼，会造成大量的工作量，而且如果要修改一条，则需要挪动多个按钮的位置，所以可以通过代码批量实现，自动排序位置。

每一行用一个类来封装，设置名称和选项值，点击按钮时需要保证选项的唯一性。

（1）头文件定义接口
#pragma once
#include <QWidget>
#include<QPushButton>
struct SelectItem
{
    int value = -1;
    QString name = "不限";
    QPushButton* pButtton = NULL;
    SelectItem(int v,QString n)
    {
        value = v;
        name = n;
        pButtton = NULL;
    }
    SelectItem()
    {
        value = -1;
        name = "不限";
        pButtton = NULL;
    }
    
};
class SelectButton : public QWidget {
    Q_OBJECT

public:
    SelectButton(QWidget * parent = Q_NULLPTR);
    ~SelectButton();
    /*
    输入显示的数据
    strName：条件的名称
    Items  ：条件的选项
    */
    void SetData(QString strName,QVector<SelectItem> Items);
    /*
    获取选中的按钮对应的值
    */
    int GetValue();
    /*
    重置按钮
    */
    void Reset();
private:
    QVector<SelectItem> m_Items;//按钮对应的数值
    int m_currentIndex=0;//选中按钮的索引值
};

(2)源文件实现接口
#include "SelectButton.hpp"
#include<QLabel>
SelectButton::SelectButton(QWidget * parent) {
    if (parent != NULL)
    {
        setParent(parent);
    }
    setFixedHeight(40);
}

SelectButton::~SelectButton() {
    for (int j = 0; j < m_Items.size(); j++)
    {
        if (m_Items[j].pButtton != NULL)
        {
            delete m_Items[j].pButtton;
            m_Items[j].pButtton = NULL;
        }
    }
}

void SelectButton::SetData(QString strName, QVector<SelectItem> Items)
{
    m_Items = Items;
    QLabel* pName = new QLabel(this);
    pName->setText(strName);
    pName->setGeometry(24, 0, 100, 40);
    int namewidth = 100;
    int Itemwidth = 70;
    for (int i = 0; i < m_Items.size(); i++)
    {
        QPushButton* pButton = new QPushButton(this);
        if (pButton != NULL)
        {
            if (i==0)
            {//默认选择第0个
                pButton->setStyleSheet(QLatin1String("QPushButton
"
                    "{
"
                    "    background:rgb(79, 79, 79);
"
                    "    border:0px;
"
                    "}
"
                    "QPushButton::hover
"
                    "{
"
                    "    background:rgb(79, 79, 79);
"
                    "}"));//设置为未选中状态
            }
            else
            {
                pButton->setStyleSheet(QLatin1String("QPushButton
"
                    "{
"
                    "    background:rgb(177, 177, 177);
"
                    "    border:0px;
"
                    "}
"
                    "QPushButton::hover
"
                    "{
"
                    "    background:rgb(79, 79, 79);
"
                    "}"));//设置为未选中状态
            }
            
            m_Items[i].pButtton = pButton;
            pButton->setGeometry(i * Itemwidth + namewidth, 0, 40, 40);
            pButton->setText(m_Items[i].name);
            connect(pButton, &QPushButton::clicked, this, [=]() {
                if (m_currentIndex != i)//选择变化
                {    
                    pButton->setStyleSheet(QLatin1String("QPushButton
"
                    "{
"
                    "    background:rgb(79, 79, 79);
"
                    "    border:0px;
"
                    "}
"
                    "QPushButton::hover
"
                    "{
"
                    "    background:rgb(79, 79, 79);
"
                    "}"));//设置为选中状态
                    if (m_currentIndex<m_Items.size()&& m_currentIndex>=0)
                    {
                        if (m_Items[m_currentIndex].pButtton!=NULL)
                        {
                            m_Items[m_currentIndex].pButtton->setStyleSheet(QLatin1String("QPushButton
"
                                "{
"
                                "    background:rgb(177, 177, 177);
"
                                "    border:0px;
"
                                "}
"
                                "QPushButton::hover
"
                                "{
"
                                "    background:rgb(79, 79, 79);
"
                                "}"));//设置为没选中状态
                        }                    
                    }    
                    m_currentIndex = i;//更新当前值
                }
                
            
                for (int j = 0; j < m_Items.size(); j++)
                {
                    if (i != j)//设置其他按钮为未选中状态
                    {
                        
                    }
                }
            });
        }
    }
    this->setFixedWidth(m_Items.size() * Itemwidth + namewidth);//设置宽度
}

int SelectButton::GetValue()
{
    if (m_currentIndex<0 || m_currentIndex>=m_Items.size())
    {
        return -1;
    }
    else
    {
        return m_Items[m_currentIndex].value;
    }
    return 0;
}

void SelectButton::Reset()
{
    if (m_currentIndex < m_Items.size() && m_currentIndex >= 0)
    {
        if (m_Items[m_currentIndex].pButtton != NULL)
        {
            m_Items[m_currentIndex].pButtton->setStyleSheet(QLatin1String("QPushButton
"
                "{
"
                "    background:rgb(177, 177, 177);
"
                "    border:0px;
"
                "}
"
                "QPushButton::hover
"
                "{
"
                "    background:rgb(79, 79, 79);
"
                "}"));//设置为没选中状态
        }
    }
    m_currentIndex = 0;
    if (m_Items[m_currentIndex].pButtton != NULL)
    {
        m_Items[m_currentIndex].pButtton->setStyleSheet(QLatin1String("QPushButton
"
            "{
"
            "    background:rgb(79, 79, 79);
"
            "    border:0px;
"
            "}
"
            "QPushButton::hover
"
            "{
"
            "    background:rgb(79, 79, 79);
"
            "}"));//设置为选中状态
    }
}

（3）主程序中创建选择项对象
//人体属性界面
    xpos = 0;
    ypos = 8;
    yindex = 0;
    SelectButton* pBodySex = new SelectButton(ui.pageBody);
    pBodySex->SetData("性别", sexItem);
    pBodySex->move(xpos, ypos + yindex * 50);
    yindex++;
    SelectButton* pBodyAge = new SelectButton(ui.pageBody);
    pBodyAge->SetData("年龄", ageStageItem);
    pBodyAge->move(xpos, ypos + yindex * 50);
    yindex++;

    SelectButton* pBodyGlass = new SelectButton(ui.pageBody);
    pBodyGlass->SetData("戴眼镜", glassItem);
    pBodyGlass->move(xpos, ypos + yindex * 50);
    yindex++;

    SelectButton* pBodyMask = new SelectButton(ui.pageBody);
    pBodyMask->SetData("戴口罩", glassItem);
    pBodyMask->move(xpos, ypos + yindex * 50);
    yindex++;

    SelectButton* pBodyHat = new SelectButton(ui.pageBody);
    pBodyHat->SetData("戴帽子", hatItem);
    pBodyHat->move(xpos, ypos + yindex * 50);
    yindex++;

    SelectButton* pBodyUpClotherColor = new SelectButton(ui.pageBody);
    pBodyUpClotherColor->SetData("上衣颜色", clotherColorItem);
    pBodyUpClotherColor->move(xpos, ypos + yindex * 50);
    yindex++;

    SelectButton* pBodyDownClotherColor = new SelectButton(ui.pageBody);
    pBodyDownClotherColor->SetData("下衣颜色", clotherColorItem);
    pBodyDownClotherColor->move(xpos, ypos + yindex * 50);
    yindex++;

    SelectButton* pBodyBag= new SelectButton(ui.pageBody);
    pBodyBag->SetData("背包", maskItem);
    pBodyBag->move(xpos, ypos + yindex * 50);
    yindex++;

    SelectButton* pBodyTake = new SelectButton(ui.pageBody);
    pBodyTake->SetData("拎东西", maskItem);
    pBodyTake->move(xpos, ypos + yindex * 50);
    yindex++;

    ui.pBtBodySerch->move(ui.pBtBodySerch->x(), ypos + yindex * 50);
    ui.pBtBodyReset->move(ui.pBtBodyReset->x(), ypos + yindex * 50);

如果有多个筛选界面，可以再封装一层。