Qt: 时钟Demo

　　其实是一个很简单的Demo，可以编译了拿NSIS打包。最近在做富文本编辑器和补C++不记得的东西吧，项目遥遥无期。

 //clock.pro

 #-------------------------------------------------
 #
 # Project created by QtCreator --26T19::
 #
 #-------------------------------------------------

 QT       += core gui

 greaterThan(QT_MAJOR_VERSION, ): QT += widgets

 TARGET = Clock
 TEMPLATE = app

 SOURCES += main.cpp \
     digtalwidget.cpp

 HEADERS  += \
     digtalwidget.h

 RESOURCES += \
     resource.qrc

 DISTFILES += \
     icon.rc

 RC_FILE += \
     icon.rc

 //digtalwidget.h(名字少打了一个i orz)

 #ifndef DIGTALWIDGET_H
 #define DIGTALWIDGET_H

 #include <QWidget>
 #include <QPoint>
 #include <QPalette>
 #include <QColor>
 #include <QTime>
 #include <QTimer>
 #include <QMouseEvent>
 #include <QDebug>
 #include <QLabel>
 #include <QGridLayout>
 #include <QMap>
 #include <QList>
 #include <QStringList>
 #include <QPixmap>
 #include <QHBoxLayout>
 #include <QIcon>
 #include <QPaintEvent>
 #include <QPainter>
 #include <QAction>
 #include <QBitmap>
 #include <QSettings>
 #include <QSystemTrayIcon>
 #include <QMenu>
 #include <QApplication>
 #include <QFile>

 class DigtalWidget;
 class NumberManger;

 #define NUMSFIXEDWIDTH 30
 #define NUMSFIXEDHEIGHT NUMSFIXEDWIDTH*2
 #define FRAMEFIXWIDTH NUMSFIXEDWIDTH*11
 #define FRAMEFIXHEIGHT NUMSFIXEDWIDTH*3
 #define SETTING_FULLINFOM ".\\clocksetttings\\settings.ini"
 #define REG_RUN "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run"

 class DigtalWidget : public QWidget
 {
     Q_OBJECT
 public:
     explicit DigtalWidget(QWidget *parent = );
     ~DigtalWidget();
 protected:
     void mousePressEvent(QMouseEvent *event);
     void mouseMoveEvent(QMouseEvent *event);
     void paintEvent(QPaintEvent *);
 private slots:
     void showTimer();
     void changeStyle();
     void iconActivated(QSystemTrayIcon::ActivationReason reason);
     void changeAutoStart();
     void quitAndSet();
 private:
     void initItem();
     void addRightMenu();
     void createTrayMenu();
     void createTrayIcon();
     void writeSettings();
     void readSettings();
     void setAutoStart();

     QPoint dragPositon;
     QList<QLabel *> timeNumsLabelList;
     QHBoxLayout *mainLayout;
     NumberManger *numMan;
     QTimer *numTimer;
     QPixmap frameBackground;
     QAction *rightMenu_Close,*rightMenu_Hide,*trayMenu_AutoStart,
             *trayMenu_Close,*trayMenu_Normal, *trayMenu_Hide;
     QList<QAction *> rightMenu_Style;

     QMenu *trayMenu;
     QSystemTrayIcon *trayIcon;

     bool if_auto_start = false;
 };

 class NumberManger
 {
     friend class DigtalWidget;
 public:
     NumberManger();
     NumberManger(const QString &);
     void setStyle(const QString &);
     void setStyle(QString &&);

 private:
     QStringList styleList{"Flat","Pink"};
     QList<QPixmap> nums;
     QPixmap cutStyle;
     QString nowStyle = "Flat";
 };

 #endif // DIGTALWIDGET_H

 //digtalwidget.cpp

 #include "digtalwidget.h"

 DigtalWidget::DigtalWidget(QWidget *parent)
     : QWidget(parent)
 {
     //...............
     move(, );//设定初始位置
     initItem();
     createTrayIcon();
     readSettings();

     frameBackground.load(tr(":/num/digitalNums/frame.png"),
                          ,//默认加载模式
                          Qt::AvoidDither|Qt::ThresholdAlphaDither|Qt::ThresholdDither);
     frameBackground = frameBackground.scaled(FRAMEFIXWIDTH,FRAMEFIXHEIGHT);

     setWindowFlags(Qt::FramelessWindowHint|Qt::WindowStaysOnTopHint|Qt::Tool|Qt::X11BypassWindowManagerHint);
     setAttribute(Qt::WA_TranslucentBackground);
     setWindowOpacity(0.95);//设置整体窗口透明度
     setWindowIcon(QIcon(tr(":/images/clockIcon.png")));
     setWindowTitle(tr("My Clock"));
     setMask(frameBackground.mask());
     //...............
     addRightMenu();
     setContextMenuPolicy(Qt::ActionsContextMenu);//开启右键菜单

     showTimer();
     resize(frameBackground.size());
 }

 void DigtalWidget::initItem()
 {
     numMan = new NumberManger("Flat");
     numTimer = new QTimer(this);
     connect(numTimer,SIGNAL(timeout()), this, SLOT(showTimer()));
     numTimer->start();//1000ms启动计时器

     for(int i = ;i < ;i++)
         timeNumsLabelList << new QLabel("");

     mainLayout = new QHBoxLayout(this);
     mainLayout->addSpacing();
     for(int i = ;i < ;i++)
         mainLayout->addWidget(timeNumsLabelList[i]);
     mainLayout->addSpacing();
     mainLayout->setMargin();
 }

 void DigtalWidget::addRightMenu()
 {
     for(const auto &name : numMan->styleList)
     {
         QIcon icon(QObject::tr(":/num/digitalNums/") + name + tr("/rightMenuIcon.png"));
         QString showName(name + tr(" style"));
         QAction *tmp = new QAction(icon,showName,this);
         rightMenu_Style << tmp;
         addAction(tmp);
         connect(tmp, SIGNAL(triggered()), this, SLOT(changeStyle()));
     }

     rightMenu_Hide = new QAction(QIcon(":/pushButtons/pushButtons/showMinimized.png"),tr("隐藏"),this);
     addAction(rightMenu_Hide);
     connect(rightMenu_Hide,SIGNAL(triggered()),this,SLOT(hide()));

     rightMenu_Close = new QAction(QIcon(":/pushButtons/pushButtons/close.png"),tr("关闭"),this);
     addAction(rightMenu_Close);
     connect(rightMenu_Close, SIGNAL(triggered()),this,SLOT(quitAndSet()));
 }

 void DigtalWidget::createTrayIcon()
 {
     if(!QSystemTrayIcon::isSystemTrayAvailable())//如果不支持系统托盘图标就退出
         return;
     createTrayMenu();
     trayIcon = new QSystemTrayIcon;
     trayIcon->setIcon(QIcon(":/images/clockIcon.png"));

     trayIcon->setToolTip(tr("Philip's clock V1.0"));
     trayIcon->setContextMenu(trayMenu);
     trayIcon->show();

     connect(trayIcon,SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
             this,SLOT(iconActivated(QSystemTrayIcon::ActivationReason)));
 }

 void DigtalWidget::createTrayMenu()
 {
     trayMenu = new QMenu(this);

     trayMenu_AutoStart = new QAction(tr("程序自启动"),this);
     trayMenu->addAction(trayMenu_AutoStart);
     connect(trayMenu_AutoStart,SIGNAL(triggered()),this,SLOT(changeAutoStart()));

     trayMenu_Hide = new QAction(QIcon(":/pushButtons/pushButtons/hide.png"),tr("隐藏"),this);
     trayMenu->addAction(trayMenu_Hide);
     connect(trayMenu_Hide,SIGNAL(triggered()),this,SLOT(hide()));

     trayMenu_Normal = new QAction(QIcon(":/pushButtons/pushButtons/normal.png"),tr("显示"),this);
     trayMenu->addAction(trayMenu_Normal);
     connect(trayMenu_Normal,SIGNAL(triggered()),this,SLOT(showNormal()));

     trayMenu->addSeparator();//插一个分隔符

     trayMenu_Close = new QAction(QIcon(":/pushButtons/pushButtons/close.png"),tr("关闭"),this);
     trayMenu->addAction(trayMenu_Close);
     connect(trayMenu_Close, SIGNAL(triggered()),this,SLOT(quitAndSet()));//注意任务栏图标的关闭必须使用qApp的才能关
 }

 void DigtalWidget::iconActivated(QSystemTrayIcon::ActivationReason reason)
 {
     switch (reason)
     {
     case QSystemTrayIcon::DoubleClick:case QSystemTrayIcon::Trigger:
         showNormal();
         break;
     case QSystemTrayIcon::MiddleClick:
         trayIcon->showMessage(tr("From Philip:"),tr("Hi!"));
         break;
     default:
         break;
     }
 }

 void DigtalWidget::changeAutoStart()
 {
     if_auto_start = !if_auto_start;
     setAutoStart();
 }

 void DigtalWidget::setAutoStart()
 {
     QString appName = QApplication::applicationName();
     QSettings regSettings(REG_RUN,QSettings::NativeFormat);

     if(!if_auto_start)//去除自启动信息
     {
         trayMenu_AutoStart->setIcon(QIcon(""));
         regSettings.remove(appName);
     }
     else//添加信息
     {
         QString appPath = QApplication::applicationFilePath();
         regSettings.setValue(appName,appPath.replace("/","\\"));
         trayMenu_AutoStart->setIcon(QIcon(":/images/check.png"));
     }
 }

 void DigtalWidget::writeSettings()
 {
     QSettings appBaseSettings(tr(SETTING_FULLINFOM),QSettings::IniFormat);//表示读取的是ini文件
     appBaseSettings.setValue("/Geometry",saveGeometry());
     appBaseSettings.setValue("/ifAutoRuning",if_auto_start);
     appBaseSettings.setValue("/style",numMan->nowStyle);
 }

 void DigtalWidget::readSettings()
 {
     QFile file(tr(SETTING_FULLINFOM));
     if(!file.open(QIODevice::ReadOnly))
         return;//不存在配置文件

     QSettings appBaseSettings(tr(SETTING_FULLINFOM),QSettings::IniFormat);//表示读取的是ini文件

     restoreGeometry(appBaseSettings.value("/Geometry").toByteArray());

     if_auto_start = appBaseSettings.value("/ifAutoRuning").toBool();
     setAutoStart();

     numMan->nowStyle = appBaseSettings.value("/style").toString();
     numMan->setStyle(numMan->nowStyle);
 }

 void DigtalWidget::quitAndSet()
 {
     writeSettings();
     QApplication::quit();
 }

 void DigtalWidget::showTimer()
 {
     QTime time = QTime::currentTime();
     QString text = time.toString("hh:mm:ss");

     for(int i = ; i < text.count(); i++)
     {
         if(text[i] != ':')
         {
             int k = text[i].cell() - '';
             timeNumsLabelList[i]->setPixmap(numMan->nums[k]);
         }
         else
             timeNumsLabelList[i]->setPixmap(numMan->cutStyle);
     }
 }

 void DigtalWidget::changeStyle()
 {
     QAction *catchAction = qobject_cast<QAction *>(sender());
     auto name = catchAction->text();
     name.replace(" style" , "", Qt::CaseSensitive);
     numMan->setStyle(name);
     showTimer();//强行刷新一次时间，去除延迟
 }

 void DigtalWidget::mousePressEvent(QMouseEvent *event)
 {
     if(event->button() == Qt::LeftButton)
     {
         dragPositon = event->globalPos() - frameGeometry().topLeft();
         event->accept();
     }
 }

 void DigtalWidget::mouseMoveEvent(QMouseEvent *event)
 {
     if(event->buttons() & Qt::LeftButton)
     {
         move(event->globalPos() - dragPositon);
         event->accept();
     }
 }

 void DigtalWidget::paintEvent(QPaintEvent *)
 {
     QPainter painter(this);
     painter.drawPixmap(,,frameBackground);
 }

 DigtalWidget::~DigtalWidget()
 {
     delete numMan;
 }

 NumberManger::NumberManger()
 {
     setStyle(nowStyle);
 }

 NumberManger::NumberManger(const QString &style)
 {
     setStyle(style);
 }

 void NumberManger::setStyle(const QString &style)
 {
     nums.clear();
     for(int i = ;i < ;i++)
     {
         QString s(QObject::tr(":/num/digitalNums/") + style + QObject::tr("/%1.png").arg(i));
         QPixmap m(s);
         m = m.scaled(NUMSFIXEDWIDTH,NUMSFIXEDHEIGHT,Qt::KeepAspectRatio);
         nums << m;
     }
     QString s(QObject::tr(":/num/digitalNums/") + style + QObject::tr("/cut.png"));
     QPixmap m(s);
     cutStyle = m.scaled((int)(NUMSFIXEDWIDTH/1.5),(int)(NUMSFIXEDHEIGHT/1.5));
     nowStyle = style;
 }

 void NumberManger::setStyle(QString &&style)
 {
     nums.clear();
     for(int i = ;i < ;i++)
     {
         QString s(QObject::tr(":/num/digitalNums/") + style + QObject::tr("/%1.png").arg(i));
         QPixmap m(s);
         m = m.scaled(NUMSFIXEDWIDTH,NUMSFIXEDHEIGHT,Qt::KeepAspectRatio);
         nums << m;
     }
     QString s(QObject::tr(":/num/digitalNums/") + style + QObject::tr("/cut.png"));
     QPixmap m(s);
     cutStyle = m.scaled((int)(NUMSFIXEDWIDTH/1.5),(int)(NUMSFIXEDHEIGHT/1.5));
     nowStyle = style;
 }

 //main.cpp

 #include <QApplication>
 #include "digtalwidget.h"

 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
     DigtalWidget *widget = new DigtalWidget;

     widget->show();

     return a.exec();
 }