qt设置全局字体_qt设置字体加粗

图标库下载

• pixeden官网：pixeden
• fontawesome官网：Font Awesome

pixeden图标类型会多一些， 而且是分类的，每个类别都是一个文件，推荐。

代码实现

把图标库里的ttf字体文件添加到Qt工程里，通过以下代码实现图标显示。

#include <QFontDatabase>


void MainWindow::iconDemo()
{ 
   
    //pe-icon-set-weath.ttf图标库示例
    //https://www.pixeden.com/icon-fonts
    //e901-e9cd
    int fontId_pdn = QFontDatabase::addApplicationFont(":/icon/pe-icon-set-weather.ttf");  //加入字体，并获取字体ID
    QString fontName_pdn = QFontDatabase::applicationFontFamilies(fontId_pdn).at(0);    //获取字体名称
    QFont iconFont_pdn = QFont(fontName_pdn);
    iconFont_pdn.setPixelSize(50);     //设置字体大小

    ui->lbe_pdn->setFont(iconFont_pdn);
    ui->lbe_pdn->setText(QChar(0xe901));   //图标ID
    ui->lbe_pdn->setStyleSheet("color: rgb(255, 0, 0);");
// ui->lbe_pdn->setStyleSheet("color:red;");

    ui->btn_pdn->setFont(iconFont_pdn);
    ui->btn_pdn->setText(QChar(0xe903));    //图标ID
    ui->btn_pdn->setStyleSheet("color: rgb(0, 255, 0);");
// ui->btn_pdn->setStyleSheet("color:blue;");

/**********************************************************************/

    //fontawesome-webfont.ttf图标库示例
    //http://www.fontawesome.com.cn/
    int fontId_fws = QFontDatabase::addApplicationFont(":/icon/fontawesome-webfont.ttf");  //加入字体，并获取字体ID
    QString fontName_fws = QFontDatabase::applicationFontFamilies(fontId_fws).at(0);    //获取字体名称
    QFont iconFont_fws = QFont(fontName_fws);
    iconFont_fws.setPixelSize(50);     //设置字体大小

    ui->lbe_fws->setFont(iconFont_fws);
    ui->lbe_fws->setText(QChar(0xf185));   //图标ID
    ui->lbe_fws->setStyleSheet("color: rgb(255, 0, 0);");
// ui->lbe_fws->setStyleSheet("color:red;");

    ui->btn_fws->setFont(iconFont_fws);
    ui->btn_fws->setText(QChar(0xf0e7));    //图标ID
    ui->btn_fws->setStyleSheet("color: rgb(0, 255, 0);");
// ui->btn_fws->setStyleSheet("color:blue;");
}

天气图标阵列显示

void MainWindow::iconDemo()
{ 
   
    //pe-icon-set-weath.ttf图标库示例
    //https://www.pixeden.com/icon-fonts
    //e901-e9cd
    int fontId = QFontDatabase::addApplicationFont(":/icon/pe-icon-set-weather.ttf");  //加入字体，并获取字体ID

    QString fontName = QFontDatabase::applicationFontFamilies(fontId).at(0);    //获取字体名称
    QFont iconFont = QFont(fontName);
    iconFont.setPixelSize(50);     //设置字体大小

    int iconID = 0xe900;
    int R = 2;
    int G = 2;
    int B = 2;
    QString styleSheet;

    //Label显示效果
    for(int row = 0; row < 5; row++)
    { 
   
        for(int col = 0; col < 5; col++)
        { 
   
            QLabel *lbe = new QLabel(this);

            lbe->setFont(iconFont);
            lbe->setText(QChar(iconID));   //图标ID
            lbe->setStyleSheet(styleSheet);
            lbe->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
            ui->gridLayout->addWidget(lbe, row, col);
            iconID += 1;
        }
        R = 20;
        G = row * 50 + 50;
        B = 10;
        styleSheet = "color: rgb(" + QString::number(R) + ", " + QString::number(G) + ", " + QString::number(B) + ");";
    }

    //PushButton显示效果
    for(int row = 5; row < 10; row++)
    { 
   
        for(int col = 0; col < 5; col++)
        { 
   
            QPushButton *btn = new QPushButton(this);

            btn->setFont(iconFont);
            btn->setText(QChar(iconID));   //图标ID
            btn->setStyleSheet(styleSheet);

            ui->gridLayout->addWidget(btn, row, col);
            iconID += 1;
        }
        R = 10;
        G = row * 20 + 50;
        B = 100;
        styleSheet = "color: rgb(" + QString::number(R) + ", " + QString::number(G) + ", " + QString::number(B) + ");";
    }
}

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