Qt 个性化标题栏，自定义标题栏

来源：互联网发布：新西兰博士含金量知乎编辑：程序博客网时间：2024/05/01 00:14

目前还没有达到自己满意的地步，魔方别人写的的，先提供参考，后面在加入新的东西

头文件

#ifndef TITLEBAR_H#define TITLEBAR_H#include <QWidget>class QLabel;class QPushButton;class TitleBar : public QWidget{    Q_OBJECTpublic:    explicit TitleBar(QWidget *parent = 0);    ~TitleBar();protected:    /*     * 双击标题栏进行界面最大化/还原     */    virtual void mouseDoubleClickEvent(QMouseEvent *event);    /*     * 进行鼠标界面的拖动     */    virtual void mousePressEvent(QMouseEvent *event);    /*     * 设置界面标题与图标     */    virtual bool eventFilter(QObject *watched, QEvent *event);private slots:    /*     * 进行最小化、最大化/还原。关闭操作     */    void onClicked();private:    /*     * 最大化/还原     */    void updateMaximize();private:    QLabel* m_pIconLabel;    QLabel* m_pTitleLabel;    QPushButton* m_pMiniMizeButton;    QPushButton* m_pMaximizeButton;    QPushButton* m_pCloseButton;};#endif // TITLEBAR_H

cpp文件

#include "titlebar.h"#include <QLabel>#include <QPushButton>#include <QHBoxLayout>#include <QEvent>#include <QMouseEvent>#include <QApplication>#include <QSizePolicy>#include <QIcon>#ifdef Q_OS_WIN#pragma comment(lib,"user32.lib")#include <qt_windows.h>#endifTitleBar::TitleBar(QWidget *parent) : QWidget(parent){    /*     * 设置标题栏高度     */    this->setFixedHeight(30);    /*     * 初始化标题栏Button及Lable     */    m_pIconLabel = new QLabel(this);    m_pTitleLabel = new QLabel(this);    m_pMiniMizeButton = new QPushButton(this);    m_pMaximizeButton = new QPushButton(this);    m_pCloseButton = new QPushButton(this);    m_pIconLabel->setFixedSize(20,20);    m_pIconLabel->setScaledContents(true);    m_pTitleLabel->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Fixed);    m_pCloseButton->setFixedSize(27,22);    m_pMaximizeButton->setFixedSize(27,22);    m_pMiniMizeButton->setFixedSize(27,22);    m_pTitleLabel->setObjectName("whiteLabel");    m_pMiniMizeButton->setObjectName("minimizeButton");    m_pMaximizeButton->setObjectName("maximizeButton");    m_pCloseButton->setObjectName("closeButton");    m_pMaximizeButton->setToolTip("Maximize");    m_pMiniMizeButton->setToolTip("Minimize");    m_pCloseButton->setToolTip("Close");    QHBoxLayout* pLayout = new QHBoxLayout(this);    pLayout->addWidget(m_pIconLabel);    pLayout->addSpacing(5);    pLayout->addWidget(m_pTitleLabel);    pLayout->addWidget(m_pMiniMizeButton);    pLayout->addWidget(m_pMaximizeButton);    pLayout->addWidget(m_pCloseButton);    pLayout->setSpacing(0);    this->setLayout(pLayout);    connect(m_pMiniMizeButton,SIGNAL(clicked(bool)),this,SLOT(onClicked()));    connect(m_pMaximizeButton,SIGNAL(clicked(bool)),this,SLOT(onClicked()));    connect(m_pCloseButton,SIGNAL(clicked(bool)),this,SLOT(onClicked()));}TitleBar::~TitleBar(){}void TitleBar::mouseDoubleClickEvent(QMouseEvent *event){    Q_UNUSED(event);    emit m_pMaximizeButton->click();}void TitleBar::mousePressEvent(QMouseEvent *event){#ifdef Q_OS_WIN    if(ReleaseCapture())    {        QWidget* pWindow = this->window();        if(pWindow->isTopLevel())        {            SendMessage(HWND(pWindow->winId()),WM_SYSCOMMAND,SC_MOVE + HTCAPTION,0);        }    }        event->ignore();#else#endif}bool TitleBar::eventFilter(QObject *watched, QEvent *event){    switch (event->type()) {    case QEvent::WindowTitleChange:    {        QWidget* pWidget = qobject_cast<QWidget*>(watched);        if(pWidget)        {            m_pTitleLabel->setText(pWidget->windowTitle());            return true;        }    }    case QEvent::WindowIconChange:    {        QWidget* pWidget = qobject_cast<QWidget*>(watched);        if(pWidget)        {            QIcon icon = pWidget->windowIcon();            m_pIconLabel->setPixmap(icon.pixmap(m_pIconLabel->size()));            return true;        }    }    case QEvent::WindowStateChange:    case QEvent::Resize:    {        updateMaximize();        return true;    }    }    return QWidget::eventFilter(watched,event);}void TitleBar::onClicked(){    QPushButton* pButton = qobject_cast<QPushButton*>(sender());    QWidget* pWidget = this->window();    if(pWidget->isTopLevel())    {        if(pButton == m_pMiniMizeButton)        {            pWidget->showMinimized();        }        else if(pButton == m_pMaximizeButton)        {            pWidget->isMaximized()?pWidget->showNormal():pWidget->showMaximized();        }        else if(pButton == m_pCloseButton)        {            pWidget->close();        }    }}void TitleBar::updateMaximize(){    QWidget* pWidget = this->window();    if(pWidget->isTopLevel())    {        bool bMaximize = pWidget->isMaximized();        if(bMaximize)        {            m_pMaximizeButton->setToolTip("Restore");            m_pMaximizeButton->setProperty("maximizePorperty","restore");        }        else        {            m_pMaximizeButton->setToolTip("Maximize");            m_pMaximizeButton->setProperty("maximizePorperty","maximize");        }        m_pMaximizeButton->setStyle(QApplication::style());    }}

使用

#include "widget.h"#include "ui_widget.h"#include "titlebar.h"#include <QPalette>#include <QVBoxLayout>Widget::Widget(QWidget *parent) :    QWidget(parent),    ui(new Ui::Widget){    ui->setupUi(this);    this->setWindowFlags(Qt::FramelessWindowHint | windowFlags());                  //remove the title bar    TitleBar* pTitleBar = new TitleBar(this);    this->installEventFilter(pTitleBar);    this->resize(400,300);    this->setWindowTitle("Thunder");//    this->setWindowIcon(QIcon());    QPalette pal(palette());    pal.setColor(QPalette::Background,QColor(50,50,50));    setAutoFillBackground(true);    setPalette(pal);    QVBoxLayout *pLayout = new QVBoxLayout();    pLayout->addWidget(pTitleBar);    pLayout->addStretch();    pLayout->setSpacing(0);    pLayout->setContentsMargins(0,0,0,0);    this->setLayout(pLayout);}Widget::~Widget(){    delete ui;}

这里的效果还是有问题的，还在排错中

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