美化QFileDialog

效果图

在这里插入图片描述

#简述

在看Qt QFileDialog源码的时候，发现Qt自己做了一套文件管理框，UI如下；反之，Qt自己做了一套自己的UI文件，那么我们就能美化它。

在这里插入图片描述

功能

1.美化QFileDialog
2.支持QFileDialog的都支持
3.支持文件和文件夹多选

思路

自定义一个Dialog，UI如下

在这里插入图片描述

代码篇

CustomFileDialog::CustomFileDialog(QWidget *parent)
    : QDialog(parent)
{
    ui.setupUi(this);
    //设置QFileDialog 透明，无边框，子窗口属性
    m_fileDialog = new QFileDialog(this, Qt::SubWindow | Qt::FramelessWindowHint);
    m_fileDialog->setAttribute(Qt::WA_TranslucentBackground);
    //使用Qt的文件选项框
    m_fileDialog->setOption(QFileDialog::DontUseNativeDialog, true);
    //QFileDialog 添加到自定义UI中
    ui.bodylayout->addWidget(m_fileDialog);

    this->setAttribute(Qt::WA_TranslucentBackground);
    this->setWindowFlags(Qt::FramelessWindowHint);
    setTitleName(QString::fromLocal8Bit("文件选择框"));

    //支持多选，即支持文件和文件夹选中
    QListView *pListView = m_fileDialog->findChild("listView");
    if (pListView){
        pListView->setSelectionMode(QAbstractItemView::ExtendedSelection);
        pListView->setItemDelegate(new NoFocusDelegate(pListView));
    }
    QTreeView *pTreeView = m_fileDialog->findChild("treeView");
    if (pTreeView){
        pTreeView->setSelectionMode(QAbstractItemView::ExtendedSelection);
        pTreeView->setItemDelegate(new NoFocusDelegate(pTreeView));
        pTreeView->header()->setDefaultAlignment(Qt::AlignLeft | Qt::AlignVCenter);
    }
    QLabel* lookinLabel = m_fileDialog->findChild("lookInLabel");
    if (lookinLabel)
        lookinLabel->setText(QString::fromLocal8Bit("文件目录："));

    QComboBox* fileTypeCombo = m_fileDialog->findChild("fileTypeCombo");
    if (fileTypeCombo)
        fileTypeCombo->setMinimumHeight(24);
    QComboBox* lookInCombo = m_fileDialog->findChild("lookInCombo");
    if (lookInCombo)
        lookInCombo->setMinimumHeight(24); 
    QLineEdit* fileNameEdit = m_fileDialog->findChild("fileNameEdit");
    if (fileNameEdit)
        fileNameEdit->setMinimumHeight(24);

    QDialogButtonBox *buttonBox = m_fileDialog->findChild("buttonBox");
    if (QPushButton *button = buttonBox->button(QDialogButtonBox::Open)){
        button->setStyleSheet("QPushButton{background-color: qlineargradient(x1: 0, y1: 0, x2: 1, y2: 0,stop: 0 #00BAFF, stop: 1 #00A1FF);font-size: 12px;color: #FFFFFF;border-radius:2px;}"
                              "QPushButton:hover{background: #00C1FF;font-size: 12px;color: #FFFFFF;border-radius:2px;}"
                              "QPushButton:disabled{background: #F0F0F0;border: 1px solid #DDDDDD;font-size: 12px;color: #BBBBBB;border-radius:2px;}");
        button->setFixedSize(68, 24);
    }
    if (QPushButton *button = buttonBox->button(QDialogButtonBox::Save)){
        button->setStyleSheet("QPushButton{background-color: qlineargradient(x1: 0, y1: 0, x2: 1, y2: 0,stop: 0 #00BAFF, stop: 1 #00A1FF);font-size: 12px;color: #FFFFFF;border-radius:2px;}"
                              "QPushButton:hover{background: #00C1FF;font-size: 12px;color: #FFFFFF;border-radius:2px;}"
                              "QPushButton:disabled{background: #F0F0F0;border: 1px solid #DDDDDD;font-size: 12px;color: #BBBBBB;border-radius:2px;}");
        button->setFixedSize(68, 24);
    }
    if (QPushButton *button = buttonBox->button(QDialogButtonBox::Cancel)){
        button->setStyleSheet("QPushButton{border: 1px solid #DDDDDD;font-size: 12px;color: #666666;border-radius:2px;}"
                              "QPushButton:hover{font-size: 12px;color: #00A1FF;border: 1px solid #00A1FF;border-radius:2px;}"
                              "QPushButton:disabled{background: #F0F0F0;border: 1px solid #DDDDDD;font-size: 12px;color: #BBBBBB;border-radius:2px;}");
        button->setText(QString::fromLocal8Bit("取消"));
        button->setFixedSize(68, 24);
    }

    buttonBox->disconnect();
    connect(buttonBox, SIGNAL(accepted()), this, SLOT(onAccepted()));//改成自己的槽
    connect(buttonBox, SIGNAL(rejected()), this, SLOT(onRejected()));//改成自己的槽

    connect(ui.sysMin, SIGNAL(clicked(bool)), this, SLOT(onShowMin(bool)));
    connect(ui.sysClose, SIGNAL(clicked(bool)), this, SLOT(onShowClose(bool)));
}

工程文件

Qt交流大会 853086607 收费群中

在这里插入图片描述

结尾

不定期上传新作品，解答作品相关问题。相关外，能解答则解答。欢迎大家一起探索Qt世界！