C++ (Cpp) QComboBox::font Examples

Example #1

QWidget *CustCharacteristicDelegate::createEditor(QWidget *parent,
    const QStyleOptionViewItem & /*style*/,
    const QModelIndex & index) const
{
  if(index.column()!=1)
    return 0;

  QModelIndex idx = index.sibling(index.row(), 0);
  q.prepare("SELECT charass_value"
            "  FROM charass, char"
            " WHERE ((charass_char_id=char_id)"
            "   AND  (charass_target_type='CT')"
            "   AND  (charass_target_id=:custtype_id)"
            "   AND  (char_id=:char_id) );");
  q.bindValue(":char_id", idx.model()->data(idx, Qt::UserRole));
  q.bindValue(":custtype_id", index.model()->data(index, Qt::UserRole));
  q.exec();

  QComboBox *editor = new QComboBox(parent);
  editor->setEditable(true);


#ifdef Q_WS_MAC
  QFont boxfont = editor->font();
  boxfont.setPointSize((boxfont.pointSize() == -1) ? boxfont.pixelSize() - 3 : boxfont.pointSize() - 3);
  editor->setFont(boxfont);
#endif

  while(q.next())
    editor->addItem(q.value("charass_value").toString());
  editor->installEventFilter(const_cast<CustCharacteristicDelegate*>(this));

  return editor;
}

Example #2

QWidget *CustCharacteristicDelegate::createEditor(QWidget *parent,
    const QStyleOptionViewItem & /*style*/,
    const QModelIndex & index) const
{
  if(index.column()!=1)
    return 0;

  QModelIndex idx = index.sibling(index.row(), 0);
  characteristic::Type chartype = characteristic::Text;

  // Determine what type we have
  XSqlQuery qry;
  qry.prepare("SELECT char_id, char_type "
              "FROM char "
              "WHERE (char_id=:char_id); ");
  qry.bindValue(":char_id", idx.model()->data(idx, Qt::UserRole));
  qry.exec();
  if (qry.first())
    chartype = (characteristic::Type)qry.value("char_type").toInt();

  if (chartype == characteristic::Text ||
      chartype == characteristic::List)
  {
    q.prepare("SELECT charass_value "
              "FROM char, charass "
              "  LEFT OUTER JOIN charopt ON ((charopt_char_id=charass_char_id) "
              "                          AND (charopt_value=charass_value)) "
              "WHERE ((charass_char_id=char_id)"
              "  AND  (charass_target_type='CT')"
              "  AND  (charass_target_id=:custtype_id)"
              "  AND  (char_id=:char_id) ) "
              "ORDER BY COALESCE(charopt_order,0), charass_value;");
    q.bindValue(":char_id", idx.model()->data(idx, Qt::UserRole));
    q.bindValue(":custtype_id", index.model()->data(index, Xt::IdRole));
    q.exec();

    QComboBox *editor = new QComboBox(parent);
    editor->setEditable(chartype == characteristic::Text);


#ifdef Q_WS_MAC
    QFont boxfont = editor->font();
    boxfont.setPointSize((boxfont.pointSize() == -1) ? boxfont.pixelSize() - 3 : boxfont.pointSize() - 3);
    editor->setFont(boxfont);
#endif

    while(q.next())
      editor->addItem(q.value("charass_value").toString());
    editor->installEventFilter(const_cast<CustCharacteristicDelegate*>(this));

    return editor;
  }
  else if (chartype == characteristic::Date)
  {
    DLineEdit *editor = new DLineEdit(parent);
    return editor;
  }
  return 0;
}

Example #3

File: modelmgrwidget.cpp Project: iclosure/jdataanalyse

void ModelMgrWidget::updateModels()
{
    //
    QLayoutItem *child;
    while (child = q_horiLayoutMain->takeAt(0)) {
        QWidget *widget = child->widget();
        if (widget) {
            widget->setParent(0);
            widget->deleteLater();
        }
        delete child;
    }

    //
    IconButton *buttonHome = new IconButton(QPixmap(":/application/image/home-1.png"), this);
    buttonHome->setObjectName("buttonHome");
    buttonHome->setFixedSize(25, 25);
    buttonHome->setToolTip(QStringLiteral("主页"));
    q_horiLayoutMain->addWidget(buttonHome);

    QComboBox *comboBoxModel = new QComboBox(this);
    comboBoxModel->addItem(QStringLiteral("数据管理"));
    comboBoxModel->addItem(QStringLiteral("数据查询"));
    comboBoxModel->addItem(QStringLiteral("数据分析"));
    comboBoxModel->setMinimumWidth(QFontMetrics(comboBoxModel->font())
                                   .width(comboBoxModel->itemText(0)) + 50);
    comboBoxModel->setToolTip(QStringLiteral("只切换模式界面，不初始化界面数据"));
    q_horiLayoutMain->addWidget(comboBoxModel);

    //
    connect(buttonHome, &QPushButton::clicked, [=](bool){
        setCurrentModel(QStringLiteral("数据管理"));
    });

    //
    QStringListIterator citerModelStack(q_modelStack);
    while (citerModelStack.hasNext()) {
        const QString &model = citerModelStack.next();
        //

        JClickableLabel *labelName = new JClickableLabel(model, this);
        labelName->setObjectName("labelName");
        labelName->setAlignment(Qt::AlignVCenter);
        labelName->setText(model);
        IconButton *buttonArrow = new IconButton(QPixmap(":/application/image/arrow-1.png"), this);
        buttonArrow->setObjectName("buttonArrow");
        buttonArrow->setFixedSize(20, 25);
        q_horiLayoutMain->addWidget(labelName);
        q_horiLayoutMain->addWidget(buttonArrow);

        //
        connect(labelName, &JClickableLabel::clicked, [=](){
            setCurrentModel(labelName->text());
        });
    }

    //
    comboBoxModel->setCurrentText(q_modelStack.last());

    //
    connect(comboBoxModel, &QComboBox::currentTextChanged, [=](const QString &text){
        setCurrentModel(text, false);
        Q_EMIT currentIndexChanged(text);
    });
}