domtool.cpp

奇趣公司比较新的qt/emd版本

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#include "domtool.h"

#include <QSizePolicy>
#include <QColor>
#include <QCursor>
#include <QDateTime>
#include <QRect>
#include <QSize>
#include <QFont>
#include <QDomElement>
#include <QByteArray>
#include <QtDebug>

/*
  \class DomTool domtool.h
  \brief The DomTool class provides static functions for Qt Designer
  and uic.

  A collection of static functions used by Resource (part of the
  designer) and Uic.

*/

/*
  Returns the contents of property \a name of object \a e as
  a variant or the variant passed as \a defValue if the property does
  not exist. The \a comment is passed on to the elementToVariant()
  function.

  \sa hasProperty()
*/
QVariant DomTool::readProperty(const QDomElement& e, const QString& name, const QVariant& defValue, QString& comment)
{
    QDomElement n;
    for (n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement()) {
        if (n.tagName() == QLatin1String("property")) {
            if (n.attribute(QLatin1String("name")) != name)
                continue;
            return elementToVariant(n.firstChild().toElement(), defValue, comment);
        }
    }
    return defValue;
}


/*
  \overload
 */
QVariant DomTool::readProperty(const QDomElement& e, const QString& name, const QVariant& defValue)
{
    QString comment;
    return readProperty(e, name, defValue, comment);
}

/*
  Returns whether object \a e defines property \a name or not.

  \sa readProperty()
 */
bool DomTool::hasProperty(const QDomElement& e, const QString& name)
{
    QDomElement n;
    for (n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement()) {
        if (n.tagName() == QLatin1String("property")) {
            if (n.attribute(QLatin1String("name")) != name)
                continue;
            return true;
        }
    }
    return false;
}

/*
    Returns a list of the names of the properties of the given \a type
    found in the element \a e.
*/
QStringList DomTool::propertiesOfType(const QDomElement& e, const QString& type)
{
    QStringList result;
    QDomElement n;
    for (n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement()) {
        if (n.tagName() == QLatin1String("property")) {
            QDomElement n2 = n.firstChild().toElement();
            if (n2.tagName() == type)
                result += n.attribute(QLatin1String("name"));
        }
    }
    return result;
}


/*
    \overload
*/
QVariant DomTool::elementToVariant(const QDomElement& e, const QVariant& defValue)
{
    QString dummy;
    return elementToVariant(e, defValue, dummy);
}

/*
  Interprets element \a e as a variant and returns the result of the
  interpretation, extracting the data as a text element is the \a
  comment matches the tag name. If the interpretation fails the \a
  defValue is returned instead.
 */
QVariant DomTool::elementToVariant(const QDomElement& e, const QVariant& defValue, QString &comment)
{
    Q_UNUSED(defValue);

    QVariant v;
    Variant var;

    if (e.tagName() == QLatin1String("rect")) {
        QDomElement n3 = e.firstChild().toElement();
        int x = 0, y = 0, w = 0, h = 0;
        while (!n3.isNull()) {
            if (n3.tagName() == QLatin1String("x"))
                x = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("y"))
                y = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("width"))
                w = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("height"))
                h = n3.firstChild().toText().data().toInt();
            n3 = n3.nextSibling().toElement();
        }
        var.createRect(x, y, w, h);
        qVariantSetValue(v, var);
    } else if (e.tagName() == QLatin1String("point")) {
        QDomElement n3 = e.firstChild().toElement();
        int x = 0, y = 0;
        while (!n3.isNull()) {
            if (n3.tagName() == QLatin1String("x"))
                x = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("y"))
                y = n3.firstChild().toText().data().toInt();
            n3 = n3.nextSibling().toElement();
        }
        var.createPoint(x,y);
        qVariantSetValue(v, var);
    } else if (e.tagName() == QLatin1String("size")) {
        QDomElement n3 = e.firstChild().toElement();
        int w = 0, h = 0;
        while (!n3.isNull()) {
            if (n3.tagName() == QLatin1String("width"))
                w = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("height"))
                h = n3.firstChild().toText().data().toInt();
            n3 = n3.nextSibling().toElement();
        }
        var.createSize(w, h);
        qVariantSetValue(v, var);
    } else if (e.tagName() == QLatin1String("color")) {
        var.color = readColor(e);
        qVariantSetValue(v, var);
    } else if (e.tagName() == QLatin1String("font")) {
        QDomElement n3 = e.firstChild().toElement();
        Font f;
        f.init();
        while (!n3.isNull()) {
            if (n3.tagName() == QLatin1String("family"))
                f.family = qstrdup(n3.firstChild().toText().data().toLatin1());
            else if (n3.tagName() == QLatin1String("pointsize"))
                f.pointsize = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("bold"))
                f.bold = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("italic"))
                f.italic = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("underline"))
                f.underline = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("strikeout"))
                f.strikeout = n3.firstChild().toText().data().toInt();
            n3 = n3.nextSibling().toElement();
        }
        var.font = f;
        qVariantSetValue(v, var);
    } else if (e.tagName() == QLatin1String("string")) {
        v = QVariant(e.firstChild().toText().data());
        QDomElement n = e;
        n = n.nextSibling().toElement();
        if (n.tagName() == QLatin1String("comment"))
            comment = n.firstChild().toText().data();
    } else if (e.tagName() == QLatin1String("cstring")) {
        v = QVariant(e.firstChild().toText().data().toAscii());
    } else if (e.tagName() == QLatin1String("number")) {
        bool ok = true;
        v = QVariant(e.firstChild().toText().data().toInt(&ok));
        if (!ok)
            v = QVariant(e.firstChild().toText().data().toDouble());
    } else if (e.tagName() == QLatin1String("bool")) {
        QString t = e.firstChild().toText().data();
        v = QVariant(t == QLatin1String("true") || t == QLatin1String("1"));
    } else if (e.tagName() == QLatin1String("pixmap")) {
        v = QVariant(e.firstChild().toText().data());
    } else if (e.tagName() == QLatin1String("iconset")) {
        v = QVariant(e.firstChild().toText().data());
    } else if (e.tagName() == QLatin1String("image")) {
        v = QVariant(e.firstChild().toText().data());
    } else if (e.tagName() == QLatin1String("enum")) {
        v = QVariant(e.firstChild().toText().data());
    } else if (e.tagName() == QLatin1String("set")) {
        v = QVariant(e.firstChild().toText().data());
    } else if (e.tagName() == QLatin1String("sizepolicy")) {
        QDomElement n3 = e.firstChild().toElement();
        var.createSizePolicy();
        while (!n3.isNull()) {
            if (n3.tagName() == QLatin1String("hsizetype"))
                var.sizePolicy.hsizetype = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("vsizetype"))
                var.sizePolicy.vsizetype = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("horstretch"))
                var.sizePolicy.horstretch = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("verstretch"))
                var.sizePolicy.verstretch = n3.firstChild().toText().data().toInt();
            n3 = n3.nextSibling().toElement();
        }
        qVariantSetValue(v, var);
    } else if (e.tagName() == QLatin1String("cursor")) {
        var.createCursor(e.firstChild().toText().data().toInt());
        qVariantSetValue(v, var);
    } else if (e.tagName() == QLatin1String("stringlist")) {
        QStringList lst;
        QDomElement n;
        for (n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement())
            lst << n.firstChild().toText().data();
        v = QVariant(lst);
    } else if (e.tagName() == QLatin1String("date")) {
        QDomElement n3 = e.firstChild().toElement();
        int y, m, d;
        y = m = d = 0;
        while (!n3.isNull()) {
            if (n3.tagName() == QLatin1String("year"))
                y = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("month"))
                m = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("day"))
                d = n3.firstChild().toText().data().toInt();
            n3 = n3.nextSibling().toElement();
        }
        v = QVariant(QDate(y, m, d));
    } else if (e.tagName() == QLatin1String("time")) {
        QDomElement n3 = e.firstChild().toElement();
        int h, m, s;
        h = m = s = 0;
        while (!n3.isNull()) {
            if (n3.tagName() == QLatin1String("hour"))
                h = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("minute"))
                m = n3.firstChild().toText().data().toInt();
            else if (n3.tagName() == QLatin1String("second"))
                s = n3.firstChild().toText().data().toInt();
            n3 = n3.nextSibling().toElement();
        }