Qt之修改窗口标题、图标以及自定义标题栏（九）

id="article_content" class="article_content clearfix"> id="content_views" class="htmledit_views">

Qt开发 系列文章 - titles-icons-titlebars（九）

目录

前言

一、修改标题

二、添加图标

三、更换标题栏

1.效果演示

2.创建标题栏类

3.定义相关函数

4.使用标题栏类

总结

前言

在我们利用Qt设计软件时，经常需要修改窗口标题、更改软件图标等之类的操作，更有甚者需要更换标题栏（因为Qt自带的窗口标题栏无法自定义）。这时需要用到QIcon类、QPixmap类等等相关基础功能的操作，以下是关于如何在不同场景中添加图标、修改标题、更换标题栏（自定义标题栏）的简单例子。

一、修改标题

本文提供修改软件窗口标题的方式有两种。

  • 第一种直接在软件初始化函数（即构造函数）添加如下代码。
  1.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="1">
class="hljs-ln-code"> class="hljs-ln-line">MainWindow::MainWindow(QWidget *parent)
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="2">
    • class="hljs-ln-code"> class="hljs-ln-line"> : QMainWindow(parent)
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="3"> class="hljs-ln-code"> class="hljs-ln-line"> , ui(new Ui::MainWindow)
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="4"> class="hljs-ln-code"> class="hljs-ln-line">{
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="5"> class="hljs-ln-code"> class="hljs-ln-line"> ui->setupUi(this);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="6"> class="hljs-ln-code"> class="hljs-ln-line"> this->setWindowTitle("我的窗口");
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="7"> class="hljs-ln-code"> class="hljs-ln-line">}
    •  class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)">

    以上两种方法修改完后，编译运行，会看到显示如下。

    二、添加图标

    添加图标的方式有多种，本文提供如下几种供参考。不管有几种实现方式，首先第一步是先把有图标的文件添加本项目路劲下面。

    win32:RC_ICONS +=  $$PWD/ico/A_tubiao.ico class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)">
    1.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="1"> class="hljs-ln-code"> class="hljs-ln-line">MainWindow::MainWindow(QWidget *parent)
    2.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="2"> class="hljs-ln-code"> class="hljs-ln-line">    : QMainWindow(parent)
    3.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="3"> class="hljs-ln-code"> class="hljs-ln-line">    , ui(new Ui::MainWindow)
    4.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="4"> class="hljs-ln-code"> class="hljs-ln-line">{
    5.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="5"> class="hljs-ln-code"> class="hljs-ln-line">    ui->setupUi(this);
    6.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="6"> class="hljs-ln-code"> class="hljs-ln-line">    this->setWindowTitle("我的窗口");
    7.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="7"> class="hljs-ln-code"> class="hljs-ln-line">    this->setWindowIcon(QIcon(QDir::currentPath() + "/ico/A_tubiao.ico"));
    8.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="8"> class="hljs-ln-code"> class="hljs-ln-line">}
     class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)">

    上面添加完后，会有如下显示，说明添加成功。

    以上几种方法修改完后，编译运行，会看到显示如下。

    三、更换标题栏

    Qt是一个跨平台的框架，它旨在提供在不同操作系统上都能保持一致的用户界面体验。Qt自带的窗口标题栏通常遵循操作系统的默认样式和布局，以确保在不同平台上都能提供一致且符合用户期望的用户体验，因此Qt自带的窗口标题栏无法自定义。

    尽管Qt自带的窗口标题栏无法自定义，但可以通过一些方法来实现自定义标题栏的效果。例如，可以隐藏系统自带的标题栏（通过设置窗口标志Qt::FramelessWindowHint），然后自行设计一个包含所需功能（如最小化、最大化、关闭按钮等）的自定义标题栏。下面本文将提供一种自定义标题栏。

    1.效果演示

    2.创建标题栏类

    在我们原有的项目上，添加新的类文件，选择C++设计类的模版，选择如下。

    然后，定义类的名称为MyTitleBar，代码如下（示例）：

    1.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="1"> class="hljs-ln-code"> class="hljs-ln-line">#ifndef MYTITLEBAR_H
    2.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="2"> class="hljs-ln-code"> class="hljs-ln-line">#define MYTITLEBAR_H
    3.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="3"> class="hljs-ln-code"> class="hljs-ln-line"> 
    4.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="4"> class="hljs-ln-code"> class="hljs-ln-line">#include 
    5.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="5"> class="hljs-ln-code"> class="hljs-ln-line"> 
    6.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="6"> class="hljs-ln-code"> class="hljs-ln-line">enum ButtonType
    7.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="7"> class="hljs-ln-code"> class="hljs-ln-line">{
    8.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="8"> class="hljs-ln-code"> class="hljs-ln-line">    MIN_BUTTON = 0,         // 最小化和关闭按钮;
    9.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="9"> class="hljs-ln-code"> class="hljs-ln-line">    MIN_MAX_BUTTON ,        // 最小化、最大化和关闭按钮;
    10.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="10"> class="hljs-ln-code"> class="hljs-ln-line">    ONLY_CLOSE_BUTTON       // 只有关闭按钮;
    11.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="11"> class="hljs-ln-code"> class="hljs-ln-line">};
    12.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="12"> class="hljs-ln-code"> class="hljs-ln-line">class MyTitleBar : public QWidget
    13.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="13"> class="hljs-ln-code"> class="hljs-ln-line">{
    14.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="14"> class="hljs-ln-code"> class="hljs-ln-line">    Q_OBJECT
    15.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="15"> class="hljs-ln-code"> class="hljs-ln-line">public:
    16.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="16"> class="hljs-ln-code"> class="hljs-ln-line">    MyTitleBar(QWidget *parent);
    17.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="17"> class="hljs-ln-code"> class="hljs-ln-line">    ~MyTitleBar();
    18.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="18"> class="hljs-ln-code"> class="hljs-ln-line">    void setBackgroundColor(int r, int g, int b , bool isTransparent = false);
    19.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="19"> class="hljs-ln-code"> class="hljs-ln-line">    void setTitleIcon(QString filePath , QSize IconSize = QSize(25 , 25));
    20.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="20"> class="hljs-ln-code"> class="hljs-ln-line">    void setTitleContent(QString titleContent , int titleFontSize = 9);
    21.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="21"> class="hljs-ln-code"> class="hljs-ln-line">    void setTitleWidth(int width);
    22.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="22"> class="hljs-ln-code"> class="hljs-ln-line">    void setButtonType(ButtonType buttonType);
    23.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="23"> class="hljs-ln-code"> class="hljs-ln-line">    void setTitleRoll();
    24.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="24"> class="hljs-ln-code"> class="hljs-ln-line">    void setWindowBorderWidth(int borderWidth);
    25.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="25"> class="hljs-ln-code"> class="hljs-ln-line">    void saveRestoreInfo(const QPoint point, const QSize size);
    26.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="26"> class="hljs-ln-code"> class="hljs-ln-line">    void getRestoreInfo(QPoint& point, QSize& size);
    27.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="27"> class="hljs-ln-code"> class="hljs-ln-line">private:
    28.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="28"> class="hljs-ln-code"> class="hljs-ln-line">    void paintEvent(QPaintEvent *event);
    29.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="29"> class="hljs-ln-code"> class="hljs-ln-line">    void mouseDoubleClickEvent(QMouseEvent *event);
    30.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="30"> class="hljs-ln-code"> class="hljs-ln-line">    void mousePressEvent(QMouseEvent *event);
    31.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="31"> class="hljs-ln-code"> class="hljs-ln-line">    void mouseMoveEvent(QMouseEvent *event);
    32.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="32"> class="hljs-ln-code"> class="hljs-ln-line">    void mouseReleaseEvent(QMouseEvent *event);
    33.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="33"> class="hljs-ln-code"> class="hljs-ln-line">    void initControl();
    34.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="34"> class="hljs-ln-code"> class="hljs-ln-line">    void initConnections();
    35.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="35"> class="hljs-ln-code"> class="hljs-ln-line">    void loadStyleSheet(const QString &qssFile);
    36.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="36"> class="hljs-ln-code"> class="hljs-ln-line">signals:
    37.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="37"> class="hljs-ln-code"> class="hljs-ln-line">    void signalchangeStyle(const QString &qssFile);
    38.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="38"> class="hljs-ln-code"> class="hljs-ln-line">    void signalButtonMinClicked();
    39.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="39"> class="hljs-ln-code"> class="hljs-ln-line">    void signalButtonRestoreClicked();
    40.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="40"> class="hljs-ln-code"> class="hljs-ln-line">    void signalButtonMaxClicked();
    41.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="41"> class="hljs-ln-code"> class="hljs-ln-line">    void signalButtonCloseClicked();
    42.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="42"> class="hljs-ln-code"> class="hljs-ln-line">private slots:
    43.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="43"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonchangeStyle();
    44.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="44"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonMinClicked();
    45.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="45"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonRestoreClicked();
    46.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="46"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonMaxClicked();
    47.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="47"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonCloseClicked();
    48.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="48"> class="hljs-ln-code"> class="hljs-ln-line">    void onRollTitle();
    49.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="49"> class="hljs-ln-code"> class="hljs-ln-line">private:
    50.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="50"> class="hljs-ln-code"> class="hljs-ln-line">    QLabel* m_pIcon;                    // 标题栏图标;
    51.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="51"> class="hljs-ln-code"> class="hljs-ln-line">    QLabel* m_pTitleContent;            // 标题栏内容;
    52.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="52"> class="hljs-ln-code"> class="hljs-ln-line">    QToolButton *m_pButtonMenu;         // 色彩菜单
    53.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="53"> class="hljs-ln-code"> class="hljs-ln-line">    QPushButton* m_pButtonMin;          // 最小化按钮;
    54.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="54"> class="hljs-ln-code"> class="hljs-ln-line">    QPushButton* m_pButtonRestore;      // 最大化还原按钮;
    55.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="55"> class="hljs-ln-code"> class="hljs-ln-line">    QPushButton* m_pButtonMax;          // 最大化按钮;
    56.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="56"> class="hljs-ln-code"> class="hljs-ln-line">    QPushButton* m_pButtonClose;        // 关闭按钮;
    57.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="57"> class="hljs-ln-code"> class="hljs-ln-line">    int m_colorR;
    58.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="58"> class="hljs-ln-code"> class="hljs-ln-line">    int m_colorG;
    59.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="59"> class="hljs-ln-code"> class="hljs-ln-line">    int m_colorB;
    60.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="60"> class="hljs-ln-code"> class="hljs-ln-line">    QPoint m_restorePos;
    61.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="61"> class="hljs-ln-code"> class="hljs-ln-line">    QSize m_restoreSize;
    62.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="62"> class="hljs-ln-code"> class="hljs-ln-line">    bool m_isPressed;
    63.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="63"> class="hljs-ln-code"> class="hljs-ln-line">    QPoint m_startMovePos;
    64.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="64"> class="hljs-ln-code"> class="hljs-ln-line">    QTimer m_titleRollTimer;
    65.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="65"> class="hljs-ln-code"> class="hljs-ln-line">    QString m_titleContent;
    66.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="66"> class="hljs-ln-code"> class="hljs-ln-line">    ButtonType m_buttonType;
    67.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="67"> class="hljs-ln-code"> class="hljs-ln-line">    int m_windowBorderWidth;
    68.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="68"> class="hljs-ln-code"> class="hljs-ln-line">    bool m_isTransparent;
    69.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="69"> class="hljs-ln-code"> class="hljs-ln-line">};
    70.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="70"> class="hljs-ln-code"> class="hljs-ln-line">#endif // MYTITLEBAR_H
     class="hide-preCode-box"> class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)">

    3.定义相关函数

    上面我们定义标题栏类的头文件，下面来说明相关功能函数。

    1.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="1"> class="hljs-ln-code"> class="hljs-ln-line">#include "mytitlebar.h"
    2.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="2"> class="hljs-ln-code"> class="hljs-ln-line">#include <QHBoxLayout>
    3.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="3"> class="hljs-ln-code"> class="hljs-ln-line">#include <QPainter>
    4.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="4"> class="hljs-ln-code"> class="hljs-ln-line">#include <QFile>
    5.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="5"> class="hljs-ln-code"> class="hljs-ln-line">#include <QMouseEvent>
    6.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="6"> class="hljs-ln-code"> class="hljs-ln-line">#include <QAction>
    7.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="7"> class="hljs-ln-code"> class="hljs-ln-line">MyTitleBar::MyTitleBar(QWidget *parent)
    8.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="8"> class="hljs-ln-code"> class="hljs-ln-line">    : QWidget(parent)
    9.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="9"> class="hljs-ln-code"> class="hljs-ln-line">    , m_colorR(0)
    10.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="10"> class="hljs-ln-code"> class="hljs-ln-line">    , m_colorG(153)
    11.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="11"> class="hljs-ln-code"> class="hljs-ln-line">    , m_colorB(153)
    12.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="12"> class="hljs-ln-code"> class="hljs-ln-line">    , m_isPressed(false)
    13.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="13"> class="hljs-ln-code"> class="hljs-ln-line">    , m_buttonType(MIN_MAX_BUTTON)
    14.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="14"> class="hljs-ln-code"> class="hljs-ln-line">    , m_windowBorderWidth(0)
    15.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="15"> class="hljs-ln-code"> class="hljs-ln-line">    , m_isTransparent(false)
    16.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="16"> class="hljs-ln-code"> class="hljs-ln-line">{
    17.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="17"> class="hljs-ln-code"> class="hljs-ln-line">    // 初始化;
    18.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="18"> class="hljs-ln-code"> class="hljs-ln-line">    initControl();
    19.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="19"> class="hljs-ln-code"> class="hljs-ln-line">    // 信号槽的绑定;
    20.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="20"> class="hljs-ln-code"> class="hljs-ln-line">    initConnections();
    21.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="21"> class="hljs-ln-code"> class="hljs-ln-line">    // 加载本地样式 MyTitle.css文件;
    22.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="22"> class="hljs-ln-code"> class="hljs-ln-line">    //loadStyleSheet("MyTitle");
    23.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="23"> class="hljs-ln-code"> class="hljs-ln-line">}
    24.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="24"> class="hljs-ln-code"> class="hljs-ln-line">// 初始化控件;
    25.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="25"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::initControl()
    26.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="26"> class="hljs-ln-code"> class="hljs-ln-line">{
    27.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="27"> class="hljs-ln-code"> class="hljs-ln-line">    // 定义按键变量
    28.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="28"> class="hljs-ln-code"> class="hljs-ln-line">    m_pIcon = new QLabel;
    29.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="29"> class="hljs-ln-code"> class="hljs-ln-line">    m_pTitleContent = new QLabel;
    30.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="30"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMenu = new QToolButton;
    31.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="31"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMin = new QPushButton;
    32.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="32"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonRestore = new QPushButton;
    33.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="33"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMax = new QPushButton;
    34.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="34"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonClose = new QPushButton;
    35.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="35"> class="hljs-ln-code"> class="hljs-ln-line"> 
    36.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="36"> class="hljs-ln-code"> class="hljs-ln-line">    QSizePolicy sizePolicy3(QSizePolicy::Fixed, QSizePolicy::Expanding);
    37.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="37"> class="hljs-ln-code"> class="hljs-ln-line">    sizePolicy3.setHorizontalStretch(0);
    38.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="38"> class="hljs-ln-code"> class="hljs-ln-line">    sizePolicy3.setVerticalStretch(0);
    39.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="39"> class="hljs-ln-code"> class="hljs-ln-line">    sizePolicy3.setHeightForWidth(m_pButtonMenu->sizePolicy().hasHeightForWidth());
    40.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="40"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMenu->setSizePolicy(sizePolicy3);
    41.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="41"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMenu->setMinimumSize(QSize(30, 0));
    42.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="42"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMenu->setMaximumSize(QSize(30, 16777215));
    43.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="43"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMenu->setFocusPolicy(Qt::NoFocus);
    44.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="44"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMenu->setPopupMode(QToolButton::InstantPopup);
    45.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="45"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置按键大小
    46.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="46"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMin->setFixedSize(QSize(30, 30));
    47.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="47"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonRestore->setFixedSize(QSize(30, 30));
    48.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="48"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMax->setFixedSize(QSize(30, 30));
    49.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="49"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonClose->setFixedSize(QSize(30, 30));
    50.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="50"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置名称
    51.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="51"> class="hljs-ln-code"> class="hljs-ln-line">    m_pTitleContent->setObjectName("TitleContent");
    52.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="52"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMenu->setObjectName("btnMenu");
    53.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="53"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMin->setObjectName("ButtonMin");
    54.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="54"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonRestore->setObjectName("ButtonRestore");
    55.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="55"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMax->setObjectName("ButtonMax");
    56.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="56"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonClose->setObjectName("ButtonClose");
    57.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="57"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置名称
    58.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="58"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMenu->setToolTip(QStringLiteral("菜单"));
    59.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="59"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMin->setToolTip(QStringLiteral("最小化"));
    60.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="60"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonRestore->setToolTip(QStringLiteral("还原"));
    61.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="61"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMax->setToolTip(QStringLiteral("最大化"));
    62.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="62"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonClose->setToolTip(QStringLiteral("关闭"));
    63.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="63"> class="hljs-ln-code"> class="hljs-ln-line">    // 定义图标
    64.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="64"> class="hljs-ln-code"> class="hljs-ln-line">    QIcon icon,icon1;
    65.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="65"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置菜单图标
    66.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="66"> class="hljs-ln-code"> class="hljs-ln-line">    icon.addFile(QString("ico/branch_menu.png"), QSize(), QIcon::Normal, QIcon::Off);
    67.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="67"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMenu->setIcon(icon);
    68.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="68"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置关闭图标
    69.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="69"> class="hljs-ln-code"> class="hljs-ln-line">    icon1.addFile(QString("ico/branch_close.png"), QSize(), QIcon::Normal, QIcon::Off);
    70.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="70"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonClose->setIcon(icon1);
    71.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="71"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置最小化图标
    72.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="72"> class="hljs-ln-code"> class="hljs-ln-line">    icon.addFile(QString("ico/branch_min.png"), QSize(), QIcon::Normal, QIcon::Off);
    73.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="73"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMin->setIcon(icon);
    74.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="74"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置最大化图标
    75.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="75"> class="hljs-ln-code"> class="hljs-ln-line">    icon.addFile(QString("ico/branch_max.png"), QSize(), QIcon::Normal, QIcon::Off);
    76.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="76"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMax->setIcon(icon);
    77.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="77"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置还原图标
    78.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="78"> class="hljs-ln-code"> class="hljs-ln-line">    icon.addFile(QString("ico/branch_res.png"), QSize(), QIcon::Normal, QIcon::Off);
    79.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="79"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonRestore->setIcon(icon);
    80.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="80"> class="hljs-ln-code"> class="hljs-ln-line">    // 创建Layout框
    81.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="81"> class="hljs-ln-code"> class="hljs-ln-line">    QHBoxLayout* mylayout = new QHBoxLayout(this);
    82.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="82"> class="hljs-ln-code"> class="hljs-ln-line">    mylayout->addWidget(m_pIcon);
    83.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="83"> class="hljs-ln-code"> class="hljs-ln-line">    mylayout->addWidget(m_pTitleContent);
    84.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="84"> class="hljs-ln-code"> class="hljs-ln-line">    mylayout->addWidget(m_pButtonMenu);
    85.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="85"> class="hljs-ln-code"> class="hljs-ln-line">    mylayout->addWidget(m_pButtonMin);
    86.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="86"> class="hljs-ln-code"> class="hljs-ln-line">    mylayout->addWidget(m_pButtonRestore);
    87.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="87"> class="hljs-ln-code"> class="hljs-ln-line">    mylayout->addWidget(m_pButtonMax);
    88.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="88"> class="hljs-ln-code"> class="hljs-ln-line">    mylayout->addWidget(m_pButtonClose);
    89.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="89"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置Layout框格式
    90.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="90"> class="hljs-ln-code"> class="hljs-ln-line">    mylayout->setContentsMargins(5, 0, 0, 0);
    91.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="91"> class="hljs-ln-code"> class="hljs-ln-line">    mylayout->setSpacing(0);
    92.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="92"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置标题栏内容大小
    93.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="93"> class="hljs-ln-code"> class="hljs-ln-line">    m_pTitleContent->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    94.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="94"> class="hljs-ln-code"> class="hljs-ln-line">    this->setFixedHeight(TITLE_HEIGHT);
    95.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="95"> class="hljs-ln-code"> class="hljs-ln-line">    this->setWindowFlags(Qt::FramelessWindowHint);
    96.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="96"> class="hljs-ln-code"> class="hljs-ln-line">    // 添加换肤菜单
    97.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="97"> class="hljs-ln-code"> class="hljs-ln-line">    QStringList name;
    98.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="98"> class="hljs-ln-code"> class="hljs-ln-line">    name << "蓝色" << "浅蓝色" << "灰色" << "浅灰色" << "浅黑色" << "浅紫色" << "橙色";
    99.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="99"> class="hljs-ln-code"> class="hljs-ln-line">    foreach (QString str, name) {
    100.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="100"> class="hljs-ln-code"> class="hljs-ln-line">        QAction *action = new QAction(str, this);
    101.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="101"> class="hljs-ln-code"> class="hljs-ln-line">        this->m_pButtonMenu->addAction(action);
    102.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="102"> class="hljs-ln-code"> class="hljs-ln-line">        connect(action, SIGNAL(triggered(bool)), this, SLOT(onButtonchangeStyle()));
    103.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="103"> class="hljs-ln-code"> class="hljs-ln-line">    }
    104.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="104"> class="hljs-ln-code"> class="hljs-ln-line">}
    105.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="105"> class="hljs-ln-code"> class="hljs-ln-line">// 信号槽的绑定;
    106.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="106"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::initConnections()
    107.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="107"> class="hljs-ln-code"> class="hljs-ln-line">{
    108.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="108"> class="hljs-ln-code"> class="hljs-ln-line">    connect(m_pButtonMin, SIGNAL(clicked()), this, SLOT(onButtonMinClicked()));
    109.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="109"> class="hljs-ln-code"> class="hljs-ln-line">    connect(m_pButtonRestore, SIGNAL(clicked()), this, SLOT(onButtonRestoreClicked()));
    110.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="110"> class="hljs-ln-code"> class="hljs-ln-line">    connect(m_pButtonMax, SIGNAL(clicked()), this, SLOT(onButtonMaxClicked()));
    111.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="111"> class="hljs-ln-code"> class="hljs-ln-line">    connect(m_pButtonClose, SIGNAL(clicked()), this, SLOT(onButtonCloseClicked()));
    112.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="112"> class="hljs-ln-code"> class="hljs-ln-line">}
    113.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="113"> class="hljs-ln-code"> class="hljs-ln-line">// 以下为按钮操作响应的槽
    114.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="114"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::onButtonchangeStyle()
    115.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="115"> class="hljs-ln-code"> class="hljs-ln-line">{
    116.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="116"> class="hljs-ln-code"> class="hljs-ln-line">    QAction *act = (QAction *)sender();
    117.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="117"> class="hljs-ln-code"> class="hljs-ln-line">    QString name = act->text();
    118.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="118"> class="hljs-ln-code"> class="hljs-ln-line">    QString qssFile = "qss/blue.css";
    119.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="119"> class="hljs-ln-code"> class="hljs-ln-line">    if (name == "蓝色")
    120.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="120"> class="hljs-ln-code"> class="hljs-ln-line">        qssFile = "qss/blue.css";
    121.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="121"> class="hljs-ln-code"> class="hljs-ln-line">    else if (name == "浅蓝色")
    122.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="122"> class="hljs-ln-code"> class="hljs-ln-line">        qssFile = "qss/lightblue.css";
    123.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="123"> class="hljs-ln-code"> class="hljs-ln-line">    else if (name == "灰色")
    124.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="124"> class="hljs-ln-code"> class="hljs-ln-line">        qssFile = "qss/flatgray.css";
    125.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="125"> class="hljs-ln-code"> class="hljs-ln-line">    else if (name == "浅灰色")
    126.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="126"> class="hljs-ln-code"> class="hljs-ln-line">        qssFile = "qss/lightgray.css";
    127.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="127"> class="hljs-ln-code"> class="hljs-ln-line">    else if (name == "浅黑色")
    128.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="128"> class="hljs-ln-code"> class="hljs-ln-line">        qssFile = "qss/blacksoft.css";
    129.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="129"> class="hljs-ln-code"> class="hljs-ln-line">    else if (name == "浅紫色")
    130.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="130"> class="hljs-ln-code"> class="hljs-ln-line">        qssFile = "qss/purple.css";
    131.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="131"> class="hljs-ln-code"> class="hljs-ln-line">    else if (name == "橙色")
    132.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="132"> class="hljs-ln-code"> class="hljs-ln-line">        qssFile = "qss/orange.css";
    133.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="133"> class="hljs-ln-code"> class="hljs-ln-line"> 
    134.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="134"> class="hljs-ln-code"> class="hljs-ln-line">    loadStyleSheet(qssFile);
    135.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="135"> class="hljs-ln-code"> class="hljs-ln-line">    emit signalchangeStyle(qssFile);
    136.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="136"> class="hljs-ln-code"> class="hljs-ln-line">}
    137.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="137"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::onButtonMinClicked()
    138.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="138"> class="hljs-ln-code"> class="hljs-ln-line">{
    139.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="139"> class="hljs-ln-code"> class="hljs-ln-line">    emit signalButtonMinClicked();
    140.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="140"> class="hljs-ln-code"> class="hljs-ln-line">}
    141.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="141"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::onButtonRestoreClicked()
    142.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="142"> class="hljs-ln-code"> class="hljs-ln-line">{
    143.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="143"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonRestore->setVisible(false);
    144.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="144"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMax->setVisible(true);
    145.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="145"> class="hljs-ln-code"> class="hljs-ln-line">    emit signalButtonRestoreClicked();
    146.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="146"> class="hljs-ln-code"> class="hljs-ln-line">}
    147.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="147"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::onButtonMaxClicked()
    148.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="148"> class="hljs-ln-code"> class="hljs-ln-line">{
    149.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="149"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonMax->setVisible(false);
    150.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="150"> class="hljs-ln-code"> class="hljs-ln-line">    m_pButtonRestore->setVisible(true);
    151.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="151"> class="hljs-ln-code"> class="hljs-ln-line">    emit signalButtonMaxClicked();
    152.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="152"> class="hljs-ln-code"> class="hljs-ln-line">}
    153.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="153"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::onButtonCloseClicked()
    154.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="154"> class="hljs-ln-code"> class="hljs-ln-line">{
    155.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="155"> class="hljs-ln-code"> class="hljs-ln-line">    emit signalButtonCloseClicked();
    156.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="156"> class="hljs-ln-code"> class="hljs-ln-line">}
    157.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="157"> class="hljs-ln-code"> class="hljs-ln-line"> 
    158.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="158"> class="hljs-ln-code"> class="hljs-ln-line">// 加载本地样式文件;
    159.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="159"> class="hljs-ln-code"> class="hljs-ln-line">// 可以将样式直接写在文件中，程序运行时直接加载进来;
    160.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="160"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::loadStyleSheet(const QString &qssFile)
    161.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="161"> class="hljs-ln-code"> class="hljs-ln-line">{
    162.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="162"> class="hljs-ln-code"> class="hljs-ln-line">    QFile file(qssFile);
    163.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="163"> class="hljs-ln-code"> class="hljs-ln-line">    if (file.open(QFile::ReadOnly)) {
    164.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="164"> class="hljs-ln-code"> class="hljs-ln-line">        QString qss = this->styleSheet();
    165.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="165"> class="hljs-ln-code"> class="hljs-ln-line">        qss += QLatin1String(file.readAll());
    166.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="166"> class="hljs-ln-code"> class="hljs-ln-line">        this->setStyleSheet(qss);
    167.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="167"> class="hljs-ln-code"> class="hljs-ln-line">        file.close();
    168.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="168"> class="hljs-ln-code"> class="hljs-ln-line">    }
    169.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="169"> class="hljs-ln-code"> class="hljs-ln-line">}
    170.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="170"> class="hljs-ln-code"> class="hljs-ln-line">// 设置标题栏背景色,在paintEvent事件中进行绘制标题栏背景色;
    171.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="171"> class="hljs-ln-code"> class="hljs-ln-line">// 在构造函数中给了默认值，可以外部设置颜色值改变标题栏背景色;
    172.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="172"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::setBackgroundColor(int r, int g, int b, bool isTransparent)
    173.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="173"> class="hljs-ln-code"> class="hljs-ln-line">{
    174.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="174"> class="hljs-ln-code"> class="hljs-ln-line">    m_colorR = r;
    175.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="175"> class="hljs-ln-code"> class="hljs-ln-line">    m_colorG = g;
    176.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="176"> class="hljs-ln-code"> class="hljs-ln-line">    m_colorB = b;
    177.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="177"> class="hljs-ln-code"> class="hljs-ln-line">    m_isTransparent = isTransparent;
    178.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="178"> class="hljs-ln-code"> class="hljs-ln-line">    // 重新绘制（调用paintEvent事件）;
    179.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="179"> class="hljs-ln-code"> class="hljs-ln-line">    update();
    180.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="180"> class="hljs-ln-code"> class="hljs-ln-line">}
    181.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="181"> class="hljs-ln-code"> class="hljs-ln-line">// 设置标题栏图标;
    182.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="182"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::setTitleIcon(QString filePath, QSize IconSize)
    183.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="183"> class="hljs-ln-code"> class="hljs-ln-line">{
    184.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="184"> class="hljs-ln-code"> class="hljs-ln-line">    QPixmap titleIcon(filePath);
    185.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="185"> class="hljs-ln-code"> class="hljs-ln-line">    m_pIcon->setPixmap(titleIcon.scaled(IconSize));
    186.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="186"> class="hljs-ln-code"> class="hljs-ln-line">}
    187.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="187"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::setTitleContent(QString titleContent, int titleFontSize)
    188.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="188"> class="hljs-ln-code"> class="hljs-ln-line">{
    189.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="189"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置标题字体大小;
    190.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="190"> class="hljs-ln-code"> class="hljs-ln-line">    QFont font = m_pTitleContent->font();
    191.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="191"> class="hljs-ln-code"> class="hljs-ln-line">    font.setPointSize(titleFontSize);
    192.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="192"> class="hljs-ln-code"> class="hljs-ln-line">    m_pTitleContent->setFont(font);
    193.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="193"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置标题内容;
    194.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="194"> class="hljs-ln-code"> class="hljs-ln-line">    m_pTitleContent->setText(titleContent);
    195.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="195"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleContent = titleContent;
    196.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="196"> class="hljs-ln-code"> class="hljs-ln-line">}
    197.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="197"> class="hljs-ln-code"> class="hljs-ln-line"> 
    198.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="198"> class="hljs-ln-code"> class="hljs-ln-line">// 设置标题栏长度;
    199.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="199"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::setTitleWidth(int width)
    200.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="200"> class="hljs-ln-code"> class="hljs-ln-line">{
    201.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="201"> class="hljs-ln-code"> class="hljs-ln-line">    this->setFixedWidth(width);
    202.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="202"> class="hljs-ln-code"> class="hljs-ln-line">}
    203.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="203"> class="hljs-ln-code"> class="hljs-ln-line"> 
    204.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="204"> class="hljs-ln-code"> class="hljs-ln-line">// 设置标题栏上按钮类型;
    205.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="205"> class="hljs-ln-code"> class="hljs-ln-line">// 由于不同窗口标题栏上的按钮都不一样，所以可以自定义标题栏中的按钮;
    206.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="206"> class="hljs-ln-code"> class="hljs-ln-line">// 这里提供了四个按钮，分别为最小化、还原、最大化、关闭按钮，如果需要其他按钮可自行添加设置;
    207.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="207"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::setButtonType(ButtonType buttonType)
    208.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="208"> class="hljs-ln-code"> class="hljs-ln-line">{
    209.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="209"> class="hljs-ln-code"> class="hljs-ln-line">    m_buttonType = buttonType;
    210.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="210"> class="hljs-ln-code"> class="hljs-ln-line"> 
    211.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="211"> class="hljs-ln-code"> class="hljs-ln-line">    switch (buttonType)
    212.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="212"> class="hljs-ln-code"> class="hljs-ln-line">    {
    213.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="213"> class="hljs-ln-code"> class="hljs-ln-line">    case MIN_BUTTON:
    214.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="214"> class="hljs-ln-code"> class="hljs-ln-line">        {
    215.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="215"> class="hljs-ln-code"> class="hljs-ln-line">            m_pButtonRestore->setVisible(false);
    216.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="216"> class="hljs-ln-code"> class="hljs-ln-line">            m_pButtonMax->setVisible(false);
    217.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="217"> class="hljs-ln-code"> class="hljs-ln-line">        }
    218.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="218"> class="hljs-ln-code"> class="hljs-ln-line">        break;
    219.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="219"> class="hljs-ln-code"> class="hljs-ln-line">    case MIN_MAX_BUTTON:
    220.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="220"> class="hljs-ln-code"> class="hljs-ln-line">        {
    221.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="221"> class="hljs-ln-code"> class="hljs-ln-line">            m_pButtonRestore->setVisible(false);
    222.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="222"> class="hljs-ln-code"> class="hljs-ln-line">        }
    223.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="223"> class="hljs-ln-code"> class="hljs-ln-line">        break;
    224.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="224"> class="hljs-ln-code"> class="hljs-ln-line">    case ONLY_CLOSE_BUTTON:
    225.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="225"> class="hljs-ln-code"> class="hljs-ln-line">        {
    226.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="226"> class="hljs-ln-code"> class="hljs-ln-line">            m_pButtonMin->setVisible(false);
    227.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="227"> class="hljs-ln-code"> class="hljs-ln-line">            m_pButtonRestore->setVisible(false);
    228.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="228"> class="hljs-ln-code"> class="hljs-ln-line">            m_pButtonMax->setVisible(false);
    229.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="229"> class="hljs-ln-code"> class="hljs-ln-line">        }
    230.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="230"> class="hljs-ln-code"> class="hljs-ln-line">        break;
    231.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="231"> class="hljs-ln-code"> class="hljs-ln-line">    default:
    232.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="232"> class="hljs-ln-code"> class="hljs-ln-line">        break;
    233.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="233"> class="hljs-ln-code"> class="hljs-ln-line">    }
    234.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="234"> class="hljs-ln-code"> class="hljs-ln-line">}
    235.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="235"> class="hljs-ln-code"> class="hljs-ln-line"> 
    236.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="236"> class="hljs-ln-code"> class="hljs-ln-line">// 设置标题栏中的标题是否会自动滚动;
    237.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="237"> class="hljs-ln-code"> class="hljs-ln-line">// 一般情况下标题栏中的标题内容是不滚动的，但是既然自定义就看自己需要嘛，想怎么设计就怎么搞O(∩_∩)O！
    238.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="238"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::setTitleRoll()
    239.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="239"> class="hljs-ln-code"> class="hljs-ln-line">{
    240.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="240"> class="hljs-ln-code"> class="hljs-ln-line">    connect(&m_titleRollTimer, SIGNAL(timeout()), this, SLOT(onRollTitle()));
    241.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="241"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleRollTimer.start(200);
    242.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="242"> class="hljs-ln-code"> class="hljs-ln-line">}
    243.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="243"> class="hljs-ln-code"> class="hljs-ln-line"> 
    244.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="244"> class="hljs-ln-code"> class="hljs-ln-line">// 设置窗口边框宽度;
    245.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="245"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::setWindowBorderWidth(int borderWidth)
    246.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="246"> class="hljs-ln-code"> class="hljs-ln-line">{
    247.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="247"> class="hljs-ln-code"> class="hljs-ln-line">    m_windowBorderWidth = borderWidth;
    248.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="248"> class="hljs-ln-code"> class="hljs-ln-line">}
    249.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="249"> class="hljs-ln-code"> class="hljs-ln-line">// 保存窗口最大化前窗口的位置以及大小;
    250.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="250"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::saveRestoreInfo(const QPoint point, const QSize size)
    251.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="251"> class="hljs-ln-code"> class="hljs-ln-line">{
    252.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="252"> class="hljs-ln-code"> class="hljs-ln-line">    m_restorePos = point;
    253.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="253"> class="hljs-ln-code"> class="hljs-ln-line">    m_restoreSize = size;
    254.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="254"> class="hljs-ln-code"> class="hljs-ln-line">}
    255.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="255"> class="hljs-ln-code"> class="hljs-ln-line"> 
    256.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="256"> class="hljs-ln-code"> class="hljs-ln-line">// 获取窗口最大化前窗口的位置以及大小;
    257.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="257"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::getRestoreInfo(QPoint& point, QSize& size)
    258.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="258"> class="hljs-ln-code"> class="hljs-ln-line">{
    259.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="259"> class="hljs-ln-code"> class="hljs-ln-line">    point = m_restorePos;
    260.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="260"> class="hljs-ln-code"> class="hljs-ln-line">    size = m_restoreSize;
    261.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="261"> class="hljs-ln-code"> class="hljs-ln-line">}
    262.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="262"> class="hljs-ln-code"> class="hljs-ln-line">// 绘制标题栏背景色;
    263.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="263"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::paintEvent(QPaintEvent *event)
    264.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="264"> class="hljs-ln-code"> class="hljs-ln-line">{
    265.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="265"> class="hljs-ln-code"> class="hljs-ln-line">    // 是否设置标题透明;
    266.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="266"> class="hljs-ln-code"> class="hljs-ln-line">    if (!m_isTransparent)
    267.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="267"> class="hljs-ln-code"> class="hljs-ln-line">    {
    268.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="268"> class="hljs-ln-code"> class="hljs-ln-line">        //设置背景色;
    269.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="269"> class="hljs-ln-code"> class="hljs-ln-line">        QPainter painter(this);
    270.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="270"> class="hljs-ln-code"> class="hljs-ln-line">        QPainterPath pathBack;
    271.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="271"> class="hljs-ln-code"> class="hljs-ln-line">        pathBack.setFillRule(Qt::WindingFill);
    272.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="272"> class="hljs-ln-code"> class="hljs-ln-line">        pathBack.addRoundedRect(QRect(0, 0, this->width(), this->height()), 3, 3);
    273.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="273"> class="hljs-ln-code"> class="hljs-ln-line">        painter.setRenderHint(QPainter::Antialiasing, true);
    274.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="274"> class="hljs-ln-code"> class="hljs-ln-line">        painter.fillPath(pathBack, QBrush(QColor(m_colorR, m_colorG, m_colorB)));
    275.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="275"> class="hljs-ln-code"> class="hljs-ln-line">    }
    276.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="276"> class="hljs-ln-code"> class="hljs-ln-line"> 
    277.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="277"> class="hljs-ln-code"> class="hljs-ln-line">    // 当窗口最大化或者还原后，窗口长度变了，标题栏的长度应当一起改变;
    278.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="278"> class="hljs-ln-code"> class="hljs-ln-line">    // 这里减去m_windowBorderWidth ，是因为窗口可能设置了不同宽度的边框;
    279.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="279"> class="hljs-ln-code"> class="hljs-ln-line">    // 如果窗口有边框则需要设置m_windowBorderWidth的值，否则m_windowBorderWidth默认为0;
    280.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="280"> class="hljs-ln-code"> class="hljs-ln-line">    if (this->width() != (this->parentWidget()->width() - m_windowBorderWidth))
    281.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="281"> class="hljs-ln-code"> class="hljs-ln-line">    {
    282.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="282"> class="hljs-ln-code"> class="hljs-ln-line">        this->setFixedWidth(this->parentWidget()->width() - m_windowBorderWidth);
    283.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="283"> class="hljs-ln-code"> class="hljs-ln-line">    }
    284.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="284"> class="hljs-ln-code"> class="hljs-ln-line">    QWidget::paintEvent(event);
    285.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="285"> class="hljs-ln-code"> class="hljs-ln-line">}
    286.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="286"> class="hljs-ln-code"> class="hljs-ln-line"> 
    287.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="287"> class="hljs-ln-code"> class="hljs-ln-line">// 双击响应事件，主要是实现双击标题栏进行最大化和最小化操作;
    288.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="288"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::mouseDoubleClickEvent(QMouseEvent *event)
    289.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="289"> class="hljs-ln-code"> class="hljs-ln-line">{
    290.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="290"> class="hljs-ln-code"> class="hljs-ln-line">    // 只有存在最大化、还原按钮时双击才有效;
    291.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="291"> class="hljs-ln-code"> class="hljs-ln-line">    if (m_buttonType == MIN_MAX_BUTTON)
    292.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="292"> class="hljs-ln-code"> class="hljs-ln-line">    {
    293.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="293"> class="hljs-ln-code"> class="hljs-ln-line">        // 通过最大化按钮的状态判断当前窗口是处于最大化还是原始大小状态;
    294.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="294"> class="hljs-ln-code"> class="hljs-ln-line">        // 或者通过单独设置变量来表示当前窗口状态;
    295.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="295"> class="hljs-ln-code"> class="hljs-ln-line">        if (m_pButtonMax->isVisible())
    296.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="296"> class="hljs-ln-code"> class="hljs-ln-line">        {
    297.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="297"> class="hljs-ln-code"> class="hljs-ln-line">            onButtonMaxClicked();
    298.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="298"> class="hljs-ln-code"> class="hljs-ln-line">        }
    299.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="299"> class="hljs-ln-code"> class="hljs-ln-line">        else
    300.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="300"> class="hljs-ln-code"> class="hljs-ln-line">        {
    301.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="301"> class="hljs-ln-code"> class="hljs-ln-line">            onButtonRestoreClicked();
    302.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="302"> class="hljs-ln-code"> class="hljs-ln-line">        }
    303.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="303"> class="hljs-ln-code"> class="hljs-ln-line">    }
    304.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="304"> class="hljs-ln-code"> class="hljs-ln-line"> 
    305.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="305"> class="hljs-ln-code"> class="hljs-ln-line">    return QWidget::mouseDoubleClickEvent(event);
    306.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="306"> class="hljs-ln-code"> class="hljs-ln-line">}
    307.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="307"> class="hljs-ln-code"> class="hljs-ln-line"> 
    308.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="308"> class="hljs-ln-code"> class="hljs-ln-line">// 以下通过mousePressEvent、mouseMoveEvent、mouseReleaseEvent三个事件实现了鼠标拖动标题栏移动窗口的效果;
    309.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="309"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::mousePressEvent(QMouseEvent *event)
    310.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="310"> class="hljs-ln-code"> class="hljs-ln-line">{
    311.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="311"> class="hljs-ln-code"> class="hljs-ln-line">    if (m_buttonType == MIN_MAX_BUTTON)
    312.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="312"> class="hljs-ln-code"> class="hljs-ln-line">    {
    313.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="313"> class="hljs-ln-code"> class="hljs-ln-line">        // 在窗口最大化时禁止拖动窗口;
    314.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="314"> class="hljs-ln-code"> class="hljs-ln-line">        if (m_pButtonMax->isVisible())
    315.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="315"> class="hljs-ln-code"> class="hljs-ln-line">        {
    316.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="316"> class="hljs-ln-code"> class="hljs-ln-line">            m_isPressed = true;
    317.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="317"> class="hljs-ln-code"> class="hljs-ln-line">            m_startMovePos = event->globalPos();
    318.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="318"> class="hljs-ln-code"> class="hljs-ln-line">        }
    319.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="319"> class="hljs-ln-code"> class="hljs-ln-line">    }
    320.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="320"> class="hljs-ln-code"> class="hljs-ln-line">    else
    321.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="321"> class="hljs-ln-code"> class="hljs-ln-line">    {
    322.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="322"> class="hljs-ln-code"> class="hljs-ln-line">        m_isPressed = true;
    323.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="323"> class="hljs-ln-code"> class="hljs-ln-line">        m_startMovePos = event->globalPos();
    324.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="324"> class="hljs-ln-code"> class="hljs-ln-line">    }
    325.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="325"> class="hljs-ln-code"> class="hljs-ln-line"> 
    326.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="326"> class="hljs-ln-code"> class="hljs-ln-line">    return QWidget::mousePressEvent(event);
    327.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="327"> class="hljs-ln-code"> class="hljs-ln-line">}
    328.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="328"> class="hljs-ln-code"> class="hljs-ln-line"> 
    329.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="329"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::mouseMoveEvent(QMouseEvent *event)
    330.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="330"> class="hljs-ln-code"> class="hljs-ln-line">{
    331.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="331"> class="hljs-ln-code"> class="hljs-ln-line">    if (m_isPressed)
    332.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="332"> class="hljs-ln-code"> class="hljs-ln-line">    {
    333.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="333"> class="hljs-ln-code"> class="hljs-ln-line">        QPoint movePoint = event->globalPos() - m_startMovePos;
    334.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="334"> class="hljs-ln-code"> class="hljs-ln-line">        QPoint widgetPos = this->parentWidget()->pos();
    335.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="335"> class="hljs-ln-code"> class="hljs-ln-line">        m_startMovePos = event->globalPos();
    336.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="336"> class="hljs-ln-code"> class="hljs-ln-line">        this->parentWidget()->move(widgetPos.x() + movePoint.x(), widgetPos.y() + movePoint.y());
    337.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="337"> class="hljs-ln-code"> class="hljs-ln-line">    }
    338.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="338"> class="hljs-ln-code"> class="hljs-ln-line">    return QWidget::mouseMoveEvent(event);
    339.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="339"> class="hljs-ln-code"> class="hljs-ln-line">}
    340.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="340"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::mouseReleaseEvent(QMouseEvent *event)
    341.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="341"> class="hljs-ln-code"> class="hljs-ln-line">{
    342.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="342"> class="hljs-ln-code"> class="hljs-ln-line">    m_isPressed = false;
    343.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="343"> class="hljs-ln-code"> class="hljs-ln-line">    return QWidget::mouseReleaseEvent(event);
    344.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="344"> class="hljs-ln-code"> class="hljs-ln-line">}
    345.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="345"> class="hljs-ln-code"> class="hljs-ln-line">// 该方法主要是让标题栏中的标题显示为滚动的效果;
    346.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="346"> class="hljs-ln-code"> class="hljs-ln-line">void MyTitleBar::onRollTitle()
    347.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="347"> class="hljs-ln-code"> class="hljs-ln-line">{
    348.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="348"> class="hljs-ln-code"> class="hljs-ln-line">    static int nPos = 0;
    349.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="349"> class="hljs-ln-code"> class="hljs-ln-line">    QString titleContent = m_titleContent;
    350.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="350"> class="hljs-ln-code"> class="hljs-ln-line">    // 当截取的位置比字符串长时，从头开始;
    351.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="351"> class="hljs-ln-code"> class="hljs-ln-line">    if (nPos > titleContent.length())
    352.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="352"> class="hljs-ln-code"> class="hljs-ln-line">        nPos = 0;
    353.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="353"> class="hljs-ln-code"> class="hljs-ln-line"> 
    354.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="354"> class="hljs-ln-code"> class="hljs-ln-line">    m_pTitleContent->setText(titleContent.mid(nPos));
    355.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="355"> class="hljs-ln-code"> class="hljs-ln-line">    nPos++;
    356.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="356"> class="hljs-ln-code"> class="hljs-ln-line">}
     class="hide-preCode-box"> class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)">

    4.使用标题栏类

    在用户的构造函数上面添加对标题栏类的使用，主要是设置主窗口MainWindow的去除边框功能（通过设置窗口标志Qt::FramelessWindowHint）、设置窗口最小化时点击任务栏窗口可以显示出原窗口（通过设置窗口标志Qt::WindowMinimizeButtonHint）、设置窗口背景透明（通过设置窗口标志Qt::WA_TranslucentBackground），然后在初始化标题栏类，关联标题栏类和主窗口类的相关信号和槽函数，实现所需最小化、最大化、关闭按钮等功能，并包括对标题栏类图标、标题、大小尺寸等效果设置，具体代码如下。

    1.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="1"> class="hljs-ln-code"> class="hljs-ln-line">class MainWindow : public QMainWindow
    2.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="2"> class="hljs-ln-code"> class="hljs-ln-line">{
    3.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="3"> class="hljs-ln-code"> class="hljs-ln-line">    Q_OBJECT
    4.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="4"> class="hljs-ln-code"> class="hljs-ln-line">public:
    5.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="5"> class="hljs-ln-code"> class="hljs-ln-line">    MainWindow(QWidget *parent = nullptr);
    6.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="6"> class="hljs-ln-code"> class="hljs-ln-line">    ~MainWindow();
    7.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="7"> class="hljs-ln-code"> class="hljs-ln-line">private slots:
    8.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="8"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonchangeStyle(const QString &qssFile);
    9.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="9"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonMinClicked();
    10.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="10"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonRestoreClicked();
    11.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="11"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonMaxClicked();
    12.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="12"> class="hljs-ln-code"> class="hljs-ln-line">    void onButtonCloseClicked();
    13.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="13"> class="hljs-ln-code"> class="hljs-ln-line">protected:
    14.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="14"> class="hljs-ln-code"> class="hljs-ln-line">    bool eventFilter(QObject *obj, QEvent *event) override;
    15.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="15"> class="hljs-ln-code"> class="hljs-ln-line">    void initTitleBar();
    16.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="16"> class="hljs-ln-code"> class="hljs-ln-line">    void paintEvent(QPaintEvent *event) override;
    17.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="17"> class="hljs-ln-code"> class="hljs-ln-line">private:
    18.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="18"> class="hljs-ln-code"> class="hljs-ln-line">    Ui::MainWindow *ui;
    19.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="19"> class="hljs-ln-code"> class="hljs-ln-line">    MyTitleBar* m_titleBar;
    20.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="20"> class="hljs-ln-code"> class="hljs-ln-line">};
    21.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="21"> class="hljs-ln-code"> class="hljs-ln-line"> 
    22.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="22"> class="hljs-ln-code"> class="hljs-ln-line"> 
    23.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="23"> class="hljs-ln-code"> class="hljs-ln-line">MainWindow::MainWindow(QWidget *parent)
    24.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="24"> class="hljs-ln-code"> class="hljs-ln-line">    : QMainWindow(parent)
    25.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="25"> class="hljs-ln-code"> class="hljs-ln-line">    , ui(new Ui::MainWindow)
    26.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="26"> class="hljs-ln-code"> class="hljs-ln-line">{
    27.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="27"> class="hljs-ln-code"> class="hljs-ln-line">    ui->setupUi(this);
    28.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="28"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置窗口去除边框 窗口最小化时点击任务栏窗口可以显示出原窗口;
    29.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="29"> class="hljs-ln-code"> class="hljs-ln-line">    this->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowMinimizeButtonHint);
    30.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="30"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置窗口背景透明;
    31.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="31"> class="hljs-ln-code"> class="hljs-ln-line">    setAttribute(Qt::WA_TranslucentBackground);
    32.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="32"> class="hljs-ln-code"> class="hljs-ln-line">    // 关闭窗口时释放资源（注意！！！如果是主窗口不要设置WA_DeleteOnClose属性）
    33.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="33"> class="hljs-ln-code"> class="hljs-ln-line">    //setAttribute(Qt::WA_DeleteOnClose);
    34.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="34"> class="hljs-ln-code"> class="hljs-ln-line">    /*** 初始化标题栏 ***/
    35.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="35"> class="hljs-ln-code"> class="hljs-ln-line">    initTitleBar();
    36.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="36"> class="hljs-ln-code"> class="hljs-ln-line">    /*** 画图界面初始化 ***/
    37.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="37"> class="hljs-ln-code"> class="hljs-ln-line">    InitChart();
    38.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="38"> class="hljs-ln-code"> class="hljs-ln-line">    /*** 注册事件过滤器 ***/
    39.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="39"> class="hljs-ln-code"> class="hljs-ln-line">    ui->widget->installEventFilter(this);
    40.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="40"> class="hljs-ln-code"> class="hljs-ln-line">    ui->tab->installEventFilter(this);
    41.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="41"> class="hljs-ln-code"> class="hljs-ln-line">    ui->tab_2->installEventFilter(this);
    42.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="42"> class="hljs-ln-code"> class="hljs-ln-line">    /*** 创建右键菜单 ***/
    43.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="43"> class="hljs-ln-code"> class="hljs-ln-line">    CreateMenu(ui->widget);
    44.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="44"> class="hljs-ln-code"> class="hljs-ln-line">    CreateMenu(ui->tab);
    45.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="45"> class="hljs-ln-code"> class="hljs-ln-line">    CreateMenu(ui->tab_2);
    46.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="46"> class="hljs-ln-code"> class="hljs-ln-line">    /*** 工具栏影藏 ***/
    47.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="47"> class="hljs-ln-code"> class="hljs-ln-line">    ui->toolBar->hide();
    48.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="48"> class="hljs-ln-code"> class="hljs-ln-line">}
    49.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="49"> class="hljs-ln-code"> class="hljs-ln-line">MainWindow::~MainWindow()
    50.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="50"> class="hljs-ln-code"> class="hljs-ln-line">{
    51.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="51"> class="hljs-ln-code"> class="hljs-ln-line">    delete ui;
    52.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="52"> class="hljs-ln-code"> class="hljs-ln-line">}
    53.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="53"> class="hljs-ln-code"> class="hljs-ln-line">void MainWindow::initTitleBar()
    54.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="54"> class="hljs-ln-code"> class="hljs-ln-line">{
    55.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="55"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleBar = new MyTitleBar(this);
    56.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="56"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleBar->move(0, 0);
    57.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="57"> class="hljs-ln-code"> class="hljs-ln-line">    connect(m_titleBar, SIGNAL(signalchangeStyle(QString)), this, SLOT(onButtonchangeStyle(QString)));
    58.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="58"> class="hljs-ln-code"> class="hljs-ln-line">    connect(m_titleBar, SIGNAL(signalButtonMinClicked()), this, SLOT(onButtonMinClicked()));
    59.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="59"> class="hljs-ln-code"> class="hljs-ln-line">    connect(m_titleBar, SIGNAL(signalButtonRestoreClicked()), this, SLOT(onButtonRestoreClicked()));
    60.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="60"> class="hljs-ln-code"> class="hljs-ln-line">    connect(m_titleBar, SIGNAL(signalButtonMaxClicked()), this, SLOT(onButtonMaxClicked()));
    61.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="61"> class="hljs-ln-code"> class="hljs-ln-line">    connect(m_titleBar, SIGNAL(signalButtonCloseClicked()), this, SLOT(onButtonCloseClicked()));
    62.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="62"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置标题栏效果，可以不设置;
    63.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="63"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleBar->setTitleRoll();
    64.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="64"> class="hljs-ln-code"> class="hljs-ln-line">    // 设置标题栏图标;
    65.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="65"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleBar->setTitleIcon(QDir::currentPath() + "/ico/butterfly.ico");
    66.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="66"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleBar->setTitleContent(QStringLiteral("***Qt更改标题栏动态效果测试***"));
    67.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="67"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleBar->setButtonType(MIN_MAX_BUTTON);
    68.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="68"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleBar->setTitleWidth(this->width());
    69.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="69"> class="hljs-ln-code"> class="hljs-ln-line">}
    70.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="70"> class="hljs-ln-code"> class="hljs-ln-line">void MainWindow::onButtonchangeStyle(const QString &qssFile)
    71.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="71"> class="hljs-ln-code"> class="hljs-ln-line">{
    72.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="72"> class="hljs-ln-code"> class="hljs-ln-line">    QFile file(qssFile);
    73.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="73"> class="hljs-ln-code"> class="hljs-ln-line">    if (file.open(QFile::ReadOnly)) {
    74.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="74"> class="hljs-ln-code"> class="hljs-ln-line">        QString qss = this->styleSheet();
    75.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="75"> class="hljs-ln-code"> class="hljs-ln-line">        qss += QLatin1String(file.readAll());
    76.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="76"> class="hljs-ln-code"> class="hljs-ln-line">        qApp->setStyleSheet(qss);
    77.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="77"> class="hljs-ln-code"> class="hljs-ln-line">        file.close();
    78.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="78"> class="hljs-ln-code"> class="hljs-ln-line">    }
    79.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="79"> class="hljs-ln-code"> class="hljs-ln-line">}
    80.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="80"> class="hljs-ln-code"> class="hljs-ln-line">void MainWindow::onButtonMinClicked()
    81.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="81"> class="hljs-ln-code"> class="hljs-ln-line">{
    82.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="82"> class="hljs-ln-code"> class="hljs-ln-line">    showMinimized();
    83.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="83"> class="hljs-ln-code"> class="hljs-ln-line">}
    84.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="84"> class="hljs-ln-code"> class="hljs-ln-line">void MainWindow::onButtonRestoreClicked()
    85.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="85"> class="hljs-ln-code"> class="hljs-ln-line">{
    86.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="86"> class="hljs-ln-code"> class="hljs-ln-line">    QPoint windowPos;
    87.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="87"> class="hljs-ln-code"> class="hljs-ln-line">    QSize windowSize;
    88.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="88"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleBar->getRestoreInfo(windowPos, windowSize);
    89.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="89"> class="hljs-ln-code"> class="hljs-ln-line">    this->setGeometry(QRect(windowPos, windowSize));
    90.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="90"> class="hljs-ln-code"> class="hljs-ln-line">}
    91.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="91"> class="hljs-ln-code"> class="hljs-ln-line">void MainWindow::onButtonMaxClicked()
    92.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="92"> class="hljs-ln-code"> class="hljs-ln-line">{
    93.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="93"> class="hljs-ln-code"> class="hljs-ln-line">    m_titleBar->saveRestoreInfo(this->pos(), QSize(this->width(), this->height()));
    94.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="94"> class="hljs-ln-code"> class="hljs-ln-line">    QRect desktopRect = QApplication::desktop()->availableGeometry();
    95.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="95"> class="hljs-ln-code"> class="hljs-ln-line">    QRect FactRect = QRect(desktopRect.x() - 3, desktopRect.y() - 3, desktopRect.width() + 6, desktopRect.height() + 6);
    96.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="96"> class="hljs-ln-code"> class="hljs-ln-line">    setGeometry(FactRect);
    97.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="97"> class="hljs-ln-code"> class="hljs-ln-line">}
    98.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="98"> class="hljs-ln-code"> class="hljs-ln-line">void MainWindow::onButtonCloseClicked()
    99.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="99"> class="hljs-ln-code"> class="hljs-ln-line">{
    100.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="100"> class="hljs-ln-code"> class="hljs-ln-line">    close();
    101.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="101"> class="hljs-ln-code"> class="hljs-ln-line">}
    102.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="102"> class="hljs-ln-code"> class="hljs-ln-line">void MainWindow::paintEvent(QPaintEvent* event)
    103.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="103"> class="hljs-ln-code"> class="hljs-ln-line">{
    104.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="104"> class="hljs-ln-code"> class="hljs-ln-line">    //设置背景色;
    105.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="105"> class="hljs-ln-code"> class="hljs-ln-line">    QPainter painter(this);
    106.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="106"> class="hljs-ln-code"> class="hljs-ln-line">    QPainterPath pathBack;
    107.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="107"> class="hljs-ln-code"> class="hljs-ln-line">    pathBack.setFillRule(Qt::WindingFill);
    108.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="108"> class="hljs-ln-code"> class="hljs-ln-line">    pathBack.addRoundedRect(QRect(0, 0, this->width(), this->height()), 3, 3);
    109.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="109"> class="hljs-ln-code"> class="hljs-ln-line">    painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
    110.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="110"> class="hljs-ln-code"> class="hljs-ln-line">    painter.fillPath(pathBack, QBrush(QColor(238, 223, 204)));
    111.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="111"> class="hljs-ln-code"> class="hljs-ln-line">    return QWidget::paintEvent(event);
    112.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="112"> class="hljs-ln-code"> class="hljs-ln-line">}
     class="hide-preCode-box"> class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)">

    以上是对自定义标题栏的实现一种，相关例程附文末，当然还有其他实现方式，例如，更快捷的是，通过可视化界面UI来设计标题栏，然后绑定/链接到主窗口界面上，具体例程可见文末链接处。

    总结

    博文中相应的工程代码Qt-Case.zip 利用Qt开发软件进行编的例程，为博文提供案例-CSDN文库。

    data-report-view="{"mod":"1585297308_001","spm":"1001.2101.3001.6548","dest":"https://blog.csdn.net/weixin_47006346/article/details/144415814","extend1":"pc","ab":"new"}">>
    注：本文转载自blog.csdn.net的黄金右肾的文章"https://blog.csdn.net/weixin_47006346/article/details/144415814"。版权归原作者所有，此博客不拥有其著作权，亦不承担相应法律责任。如有侵权，请联系我们删除。
    复制链接
    复制链接
    相关推荐
    发表评论

    评论记录：

    未查询到任何数据！