Qt4.7应用程序测试

Qt4.7应用程序移植到iTOP4412板子上，首先先看成果图：

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分为mainwindow led adc buzzer led 四个部分 ，每个部分都包含一个 .cpp .h .ui  ，对于资源文件，也可以学我作一个分类

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主窗口的设计

mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include 
#include 
#include 

#define Main_App_num 3  //APP数



MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    UI_Init();
}

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


void MainWindow::Close_btn_Init()
{
    QIcon close_icon(":/Main/close.png");
    ui->Close_btn->setIcon(close_icon); //设置按钮图标
    ui->Close_btn->setIconSize(QSize(25,25));
    ui->Close_btn->setFlat(true); //取消边框
    ui->Close_btn->setText(NULL); //取消文字
    ui->Close_btn->setFocusPolicy(Qt::NoFocus); //取消注视
    ui->Close_btn->setStyleSheet("background: rgb(100,100,100,15)"); //设置背景
    //按钮单击时触发Main_close
    connect(ui->Close_btn,SIGNAL(clicked(bool)),this, SLOT(Main_close()));  
}

void MainWindow::Background_Init()  //设置背景
{
    QPixmap pixmap = QPixmap(":/Background/background.jpg").scaled(QSize(1024,600));  

    QPalette palette(this->palette());

    palette.setBrush(QPalette::Background, QBrush(pixmap));

    this->setPalette(palette);
}

void MainWindow::APP_List_Init()
{
    //增加列表APP及图标
    QIcon App_icon(":/Main/ADC.png");
    ui->APP_List->addItem("ADC");
    ui->APP_List->item(0)->setIcon(App_icon);

    App_icon.addFile(":/Main/Buzzer.png");
    ui->APP_List->addItem("Buzzer");
    ui->APP_List->item(1)->setIcon(App_icon);

    App_icon.addFile(":/Main/LED_APP.png");
    ui->APP_List->addItem("LED");
    ui->APP_List->item(2)->setIcon(App_icon);


    ui->APP_List->setIconSize(QSize(30,30));
    ui->APP_List->setFocusPolicy(Qt::NoFocus);

    int APP_num;

    for(APP_num=0;APP_numAPP_List->item(APP_num)->setTextAlignment(Qt::AlignCenter);
         ui->APP_List->item(APP_num)->setForeground(QColor(Qt::black));
         ui->APP_List->item(APP_num)->setSizeHint(QSize(50,65));
    }

    connect(ui->APP_List,SIGNAL(itemDoubleClicked(QListWidgetItem*)),this,SLOT(App_Open(QListWidgetItem*)));

}


void MainWindow::App_Open(QListWidgetItem* )
{
    switch(ui->APP_List->currentRow())  //根据当前的列表行选择显示哪个ui
    {
    case 0 :   { ADC_APP_ui.showFullScreen(); break;  }
    case 1 :   { Buzzer_APP_ui.showFullScreen();break;       }
    case 2 :   { LED_APP_ui.showFullScreen();break;       }
    }
}


void MainWindow::Main_close()
{
    this->close();
}




QPixmap MainWindow::PixmapToRound(const QPixmap &src, int radius)  //将图标转化为圆形
{
    if (src.isNull()) {
        return QPixmap();
    }
    QSize size(2*radius, 2*radius);
    QBitmap mask(size);
    QPainter painter(&mask);
    painter.setRenderHint(QPainter::Antialiasing);
    painter.setRenderHint(QPainter::SmoothPixmapTransform);
    painter.fillRect(0, 0, size.width(), size.height(), Qt::white);
    painter.setBrush(QColor(0, 0, 0));
    painter.drawRoundedRect(0, 0, size.width(), size.height(), 99, 99);
    QPixmap image = src.scaled(size);
    image.setMask(mask);
    return image;
}

void MainWindow::Logo_Init()
{
    QPixmap pixmap = QPixmap(":/Logo/logo.jpg").scaled(30,30,Qt::IgnoreAspectRatio,Qt::SmoothTransformation);
    pixmap =  PixmapToRound(pixmap, 15);
    ui->Logo_Lable->setPixmap(pixmap);
}



void MainWindow::UI_Init()
{
    APP_List_Init();//初始化app列表
    Background_Init();//背景图片初始化
    Close_btn_Init();//关闭按键初始化
    Logo_Init();//Logo信息初始化
}

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include 
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "led.h"
#include "adc.h"
#include "buzzer.h"


namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

public slots:
    void Main_close();
    void App_Open(QListWidgetItem*);

private:
    Ui::MainWindow *ui;
    void UI_Init();
    void Close_btn_Init();
    void Background_Init();
    void APP_List_Init();
    void Logo_Init();
    QPixmap PixmapToRound(const QPixmap &src, int radius);


    LED LED_APP_ui;
    ADC ADC_APP_ui;
    Buzzer Buzzer_APP_ui;


};

#endif // MAINWINDOW_H

---

adc设计

adc.cpp

#include "adc.h"
#include "ui_adc.h"
#include 
#include 

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 



#define ADC_NUM 1

ADC::ADC(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::ADC)
{
    ui->setupUi(this);
    UI_Init();
}

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



void ADC::Close_btn_Init()
{
    QIcon close_icon(":/ADC/back.png");
    ui->Close_btn->setIcon(close_icon);
    ui->Close_btn->setIconSize(QSize(25,25));
    ui->Close_btn->setFlat(true);
    ui->Close_btn->setText(NULL);
    ui->Close_btn->setFocusPolicy(Qt::NoFocus);
    ui->Close_btn->setStyleSheet("background: rgb(100,100,100,15)");
    connect(ui->Close_btn, SIGNAL(clicked(bool)),this,SLOT(APP_close()));
}

void ADC::Background_Init()
{
    QPixmap pixmap = QPixmap(":/Background/background.jpg").scaled(QSize(1024,600));

    QPalette palette(this->palette());

    palette.setBrush(QPalette::Background, QBrush(pixmap));

    this->setPalette(palette);
}

void ADC::APP_close()
{
    this->close();
}


void ADC::ADC_Refresh_Init()
{
    QIcon Refresh_btn_icon(":/ADC/Refresh.png");
    ui->Refresh_btn->setIcon(Refresh_btn_icon);
    ui->Refresh_btn->setIconSize(QSize(35,35));
    ui->Refresh_btn->setFlat(true);
    ui->Refresh_btn->setText(NULL);
    ui->Refresh_btn->setFocusPolicy(Qt::NoFocus);
    ui->Refresh_btn->setStyleSheet("background: rgb(100,100,100,15)");
    connect(ui->Refresh_btn, SIGNAL(clicked(bool)),this,SLOT(ADC_Refresh()));
}

void ADC::ADC_Value_Lable_Init()
{
    ui->ADC_Value_Lable->setAlignment(Qt::AlignCenter);
    ui->ADC_Value_Lable->setFocusPolicy(Qt::NoFocus);
}


void ADC::ADC_List_Init()
{
    QIcon ADC_Status_icon(":/ADC/ADC_List.png");
    ui->ADC_List->addItem("ADC_0");
    ui->ADC_List->item(0)->setIcon(ADC_Status_icon);

    ui->ADC_List->setIconSize(QSize(30,30));
    ui->ADC_List->setFocusPolicy(Qt::NoFocus);

    int ADC_num;

    for(ADC_num=0;ADC_numADC_List->item(ADC_num)->setTextAlignment(Qt::AlignCenter);
         ui->ADC_List->item(ADC_num)->setForeground(QColor(Qt::black));
         ui->ADC_List->item(ADC_num)->setSizeHint(QSize(50,65));
    }

    ui->ADC_List->item(0)->setSelected(true);
}



void ADC::ADC_Refresh()
{
    int fd = ::open("/dev/adc",0);
    if(fd < 0)
    {
        return;
    }
    char buffer[30] = "";
    int len = ::read(fd,buffer,sizeof(buffer)-1);
    if(len > 0)
    {
        buffer[len] = '\0';
        buffer[len-1] = '\0';
        ui->ADC_Value_Lable->setText(buffer);
    }
    ::close(fd);

}
QPixmap ADC::PixmapToRound(const QPixmap &src, int radius)
{
    if (src.isNull()) {
        return QPixmap();
    }
    QSize size(2*radius, 2*radius);
    QBitmap mask(size);
    QPainter painter(&mask);
    painter.setRenderHint(QPainter::Antialiasing);
    painter.setRenderHint(QPainter::SmoothPixmapTransform);
    painter.fillRect(0, 0, size.width(), size.height(), Qt::white);
    painter.setBrush(QColor(0, 0, 0));
    painter.drawRoundedRect(0, 0, size.width(), size.height(), 99, 99);
    QPixmap image = src.scaled(size);
    image.setMask(mask);
    return image;
}

void ADC::Logo_Init()
{
    QPixmap pixmap = QPixmap(":/Logo/logo.jpg").scaled(30,30,Qt::IgnoreAspectRatio,Qt::SmoothTransformation);
    pixmap =  PixmapToRound(pixmap, 15);
    ui->Logo_Lable->setPixmap(pixmap);
}



void ADC::UI_Init()
{
    ADC_Value_Lable_Init();//ADC数值标签初始化
    Close_btn_Init();//关闭按键初始化
    ADC_Refresh_Init();//读取按键初始化
    Background_Init();//背景图片初始化
    ADC_List_Init();//ADC列表初始化
    Logo_Init();//Logo信息初始化
}

adc.h

#ifndef ADC_H
#define ADC_H

#include 

namespace Ui {
class ADC;
}

class ADC : public QWidget
{
    Q_OBJECT

public:
    explicit ADC(QWidget *parent = 0);
    ~ADC();

private slots:
    void APP_close();
    void ADC_Refresh();

private:
    Ui::ADC *ui;
    void UI_Init();
    void Close_btn_Init();
    void Background_Init();
    void ADC_Refresh_Init();
    void ADC_Value_Lable_Init();
    void ADC_List_Init();
    void Logo_Init();
    QPixmap PixmapToRound(const QPixmap &src, int radius);
};

#endif // ADC_H

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这里讲几点注意的点：

1.Qt应用程序也是通过设备节点控制底层，qt应用程序也是利用open ,ioctl,write,read,close等函数对底层进行控制。

2.qss对界面美化有很大帮助

这是我主界面app列表的qss：

#APP_List{
background-color: rgba(67, 67, 67,100);
border:1px solid  rgba(20, 20, 20,50);
}
#APP_List::item:selected 
{
     border: 5px solid rgb(100,100,150,10);
 }
#APP_List::item:selected:!active
 {
     background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,

stop: 0 rgb(67,67,67,10) , stop: 1 rgb(120,120,120,100) );
 }
 
#APP_List::item:selected:active 
{
     background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,                            										  

stop: 0 rgb(67,67,67,10) , stop: 1 rgb(120,120,120,100) );
 }

 

不加qss时的列表

加qss后的列表

在qss中设置了列表的框，列表的背景，列表选择框活动时和非活动时的颜色。

对于label也可以用qss进行美化，比如adc显示值的lable

border-width: 1px;
border-style: solid;
border-color: rgb(67, 67, 67,100);
color:rgba(20, 20,20,220);
background-color: rgb(67, 67, 67,100);

qss未进行美化时

qss美化后

3.在移植时进行调试，make后重新用qtcreator打开工程进行编译时可能会报错

这是原工程文件

qmake后会生成Makefile

再进行make生成移植后的板子上的程序

这时重新打开qtcreator可能会报错

提示你找不到头文件

这时候执行make clean就好了