C++ QComboBox::isEnabled方法代码示例

/**
   This function displays text and color formatting in order to help the user understand what channels have not yet been configured.
 */
bool ConfigFixedWingWidget::throwConfigError(QString airframeType)
{
    // Initialize configuration error flag
    bool error = false;

    QList<QComboBox *> comboChannelsName;
    comboChannelsName << m_aircraft->fwEngineChannelBox
                      << m_aircraft->fwAileron1ChannelBox << m_aircraft->fwAileron2ChannelBox
                      << m_aircraft->fwElevator1ChannelBox << m_aircraft->fwElevator2ChannelBox
                      << m_aircraft->fwRudder1ChannelBox << m_aircraft->fwRudder2ChannelBox;
    QString channelNames = "";

    for (int i = 0; i < 7; i++) {
        QComboBox *combobox = comboChannelsName[i];
        if (combobox && (combobox->isEnabled())) {
            if (combobox->currentText() == "None") {
                int size = combobox->style()->pixelMetric(QStyle::PM_SmallIconSize);
                QPixmap pixmap(size, size);
                if ((airframeType == "FixedWingElevon") && (i > 2)) {
                    pixmap.fill(QColor("green"));
                    // Rudders are optional for elevon frame
                    combobox->setToolTip(tr("Rudders are optional for Elevon frame"));
                } else if (((airframeType == "FixedWing") || (airframeType == "FixedWingVtail")) && (i == 2)) {
                    pixmap.fill(QColor("green"));
                    // Second aileron servo is optional for FixedWing frame
                    combobox->setToolTip(tr("Second aileron servo is optional"));
                } else if ((airframeType == "FixedWing") && (i > 3)) {
                    pixmap.fill(QColor("green"));
                    // Second elevator and rudders are optional for FixedWing frame
                    combobox->setToolTip(tr("Second elevator servo is optional"));
                    if (i > 4) {
                        combobox->setToolTip(tr("Rudder is highly recommended for fixed wing."));
                    }
                } else {
                    pixmap.fill(QColor("red"));
                    combobox->setToolTip(tr("Please assign Channel"));
                    m_aircraft->fwStatusLabel->setText(tr("<font color='red'>ERROR: Assign all necessary channels</font>"));
                    error = true;
                }
                combobox->setItemData(0, pixmap, Qt::DecorationRole); // Set color palettes
            } else if (channelNames.contains(combobox->currentText(), Qt::CaseInsensitive)) {
                int size = combobox->style()->pixelMetric(QStyle::PM_SmallIconSize);
                QPixmap pixmap(size, size);
                pixmap.fill(QColor("orange"));
                combobox->setItemData(combobox->currentIndex(), pixmap, Qt::DecorationRole); // Set color palettes
                combobox->setToolTip(tr("Channel already used"));
                error = true;
            } else {
                for (int index = 0; index < (int)ConfigFixedWingWidget::CHANNEL_NUMELEM; index++) {
                    combobox->setItemData(index, 0, Qt::DecorationRole); // Reset all color palettes
                    combobox->setToolTip("");
                }
            }
            channelNames += (combobox->currentText() == "None") ? "" : combobox->currentText();
        }
    }
    return error;
}

void BaseForm::select()
{
    QComboBox* b = (QComboBox*)sender()->property(PROP_TARG).value<void*>();
    if (b && b->isEnabled())
    {
        qint32 i = sender()->objectName().toInt();
        if (i < 0)
        {
            i = b->currentIndex() + 1;
            if (i >= b->count()) i = 0;
        }

        b->setCurrentIndex(i);
    }
}

/**
 *  Returns true if all relevant children of the widget managed by this
 *  instance are valid AND if #isOtherValid() returns true; otherwise returns
 *  false. Disabled children and children without validation
 *  are skipped and don't affect the result.
 *
 *  The method emits the #isValidRequested() signal before calling
 *  #isOtherValid(), thus giving someone an opportunity to affect its result by
 *  calling #setOtherValid() from the signal handler. Note that #isOtherValid()
 *  returns true by default, until #setOtherValid( false ) is called.
 *
 *  @note If #isOtherValid() returns true this method does a hierarchy scan, so
 *  it's a good idea to store the returned value in a local variable if needed
 *  more than once within a context of a single check.
 */
bool QIWidgetValidator::isValid() const
{
    // wgt is null, we assume we're valid
    if (!mWidget)
        return true;

    QIWidgetValidator *that = const_cast <QIWidgetValidator *> (this);
    emit that->isValidRequested (that);
    if (!isOtherValid())
        return false;

    QValidator::State state = QValidator::Acceptable;

    foreach (Watched watched, mWatched)
    {
        if (watched.widget->inherits ("QLineEdit"))
        {
            QLineEdit *le = ((QLineEdit *) watched.widget);
            Assert (le->validator());
            if (!le->validator() || !le->isEnabled())
                continue;
            QString text = le->text();
            int pos;
            state = le->validator()->validate (text, pos);
        }
        else if (watched.widget->inherits ("QComboBox"))
        {
            QComboBox *cb = ((QComboBox *) watched.widget);
            Assert (cb->validator());
            if (!cb->validator() || !cb->isEnabled())
                continue;
            QString text = cb->lineEdit()->text();
            int pos;
            state = cb->lineEdit()->validator()->validate (text, pos);
        }

        if (state != QValidator::Acceptable)
        {
            that->mLastInvalid = watched;
            that->mLastInvalid.state = state;
            return false;
        }
    }

    /* reset last invalid */
    that->mLastInvalid = Watched();
    return true;
}

QByteArray TableItem::GenHTMLForm() {
    QString ret;
    QString objTypeName = obj->metaObject()->className();

    if(objTypeName == "QPlainTextEdit") {
        QPlainTextEdit *item = (QPlainTextEdit *) obj;

#if 0
        ret = QString("<form method=\"post\">"
                   "  <input type=\"hidden\" name=\"action\" value=\"%2\">"
                   "<div class=\"form_info\">%1</div>"
                   "<div class=\"form_editor\"><textarea name=\"%2\" cols=\"20\" rows=\"4\">%3</textarea></div>"
                   "<div class=\"form_submitter\"><input type=\"submit\" value=\"&gt;&gt;\"></div>"
                   "<div class=\"form_tooltip\">%4</div>"
                   "</form>")
                .arg(desc).arg(short_d).arg(item->toPlainText()).arg(item->toolTip());
#endif
        ret = QString("<form method=\"post\"><input type=\"hidden\" name=\"action\" value=\"%2\" />"
                      "<div class=\"row\">"
                      "<div class=\"prop\"><p>%1:</p></div>"
                      "<div class=\"val\"><p><textarea name=\"%2\" cols=\"16\" rows=\"3\">%3</textarea></p></div>"
                      "<div class=\"submit\"><p> %4</p></div>"
                      "<div class=\"tooltip\"><p> %5</p></div>"
                      "</div></form>\n")
                .arg(desc)
                .arg(short_d)
                .arg(item->toPlainText())
                .arg((!item->isEnabled() || item->isReadOnly()) ? "" : "<input type=\"submit\" value=\"&gt;&gt;\" />")
                .arg(item->toolTip());
    }
    else if(objTypeName == "QLineEdit") {
        QLineEdit *item = (QLineEdit *) obj;

        ret = QString("<form method=\"post\"><input type=\"hidden\" name=\"action\" value=\"%2\" />"
                      "<div class=\"row\">"
                        "<div class=\"prop\"><p>%1:</p></div>"
                        "<div class=\"val\"><p><input type=\"text\" name=\"%2\" value=\"%3\" /></p></div>"
                        "<div class=\"submit\"><p> %4</p></div>"
                        "<div class=\"tooltip\"><p> %5</p></div>"
                        "</div></form>\n")
                .arg(desc)
                .arg(short_d)
                .arg(item->text())
                .arg((!item->isEnabled() || item->isReadOnly()) ? "" : "<input type=\"submit\" value=\"&gt;&gt;\" />")
                .arg(item->toolTip());
    }
    else if(objTypeName == "QCheckBox") {
        QCheckBox *item = (QCheckBox *) obj;
        ret = QString("<form method=\"post\"><input type=\"hidden\" name=\"action\" value=\"%2\" />"
                      "<div class=\"row\">"
                        "<div class=\"prop\"><p>%1:</p></div>"
                        "<div class=\"val\"><p><input type=\"checkbox\" name=\"%2\" value=\"true\" %3/></p></div>"
                        "<div class=\"submit\"><p> %4</p></div>"
                        "<div class=\"tooltip\"><p> %5</p></div>"
                        "</div></form>\n")
                .arg(desc)
                .arg(short_d)
                .arg(item->isChecked() ? "checked" : "")
                .arg((!item->isEnabled()) ? "" : "<input type=\"submit\" value=\"&gt;&gt;\" />")
                .arg(item->toolTip());
    }
    else if(objTypeName == "QSpinBox") {
        QSpinBox *item = (QSpinBox *) obj;

        ret = QString("<form method=\"post\"><input type=\"hidden\" name=\"action\" value=\"%2\" />"
                      "<div class=\"row\">"
                        "<div class=\"prop\"><p>%1:</p></div>"
                        "<div class=\"val\"><p><input type=\"number\" name=\"%2\" value=\"%3\" min=\"%4\" max=\"%5\" step=\"%6\" /></p></div>"
                        "<div class=\"submit\"><p> %7</p></div>"
                        "<div class=\"tooltip\"><p> %8</p></div>"
                        "</div></form>\n")
                .arg(desc)
                .arg(short_d)
                .arg(item->value())
                .arg(item->minimum())
                .arg(item->maximum())
                .arg(item->singleStep())
                .arg((!item->isEnabled() || item->isReadOnly()) ? "" : "<input type=\"submit\" value=\"&gt;&gt;\" />")
                .arg(item->toolTip());
    }
    else if(objTypeName == "QDoubleSpinBox") {
        QDoubleSpinBox *item = (QDoubleSpinBox *) obj;

        ret = QString("<form method=\"post\"><input type=\"hidden\" name=\"action\" value=\"%2\" />"
                      "<div class=\"row\">"
                        "<div class=\"prop\"><p>%1:</p></div>"
                        "<div class=\"val\"><p><input type=\"number\" name=\"%2\" value=\"%3\" min=\"%4\" max=\"%5\" step=\"%6\" /></p></div>"
                        "<div class=\"submit\"><p> %7</p></div>"
                        "<div class=\"tooltip\"><p> %8</p></div>"
                        "</div></form>\n")
                .arg(desc)
                .arg(short_d)
                .arg(item->value())
                .arg(item->minimum())
                .arg(item->maximum())
                .arg(item->singleStep())
                .arg((!item->isEnabled() || item->isReadOnly()) ? "" : "<input type=\"submit\" value=\"&gt;&gt;\" />")
                .arg(item->toolTip());
    }
    else if(objTypeName == "QComboBox") {
//.........这里部分代码省略.........