qpropertyeditor_items.cpp

qt-x11-opensource-src-4.1.4.tar.gz源码

    return m_specialValue;
}

void IntProperty::setSpecialValue(const QString &specialValue)
{
    m_specialValue = specialValue;
}

void IntProperty::setValue(const QVariant &value)
{
    m_value = value.toInt();
}

QString IntProperty::toString() const
{
    return QString::number(m_value);
}

QWidget *IntProperty::createEditor(QWidget *parent, const QObject *target, const char *receiver) const
{
    QSpinBox *spinBox = new QIntPropertySpinBox(parent);
    spinBox->setFrame(0);
    spinBox->setSpecialValueText(m_specialValue);
    spinBox->setRange(m_low, m_hi);
    spinBox->setValue(m_value);
    spinBox->selectAll();

    QObject::connect(spinBox, SIGNAL(editingFinished()), target, receiver);

    return spinBox;
}

void IntProperty::updateEditorContents(QWidget *editor)
{
    if (QSpinBox *spinBox = qobject_cast<QSpinBox*>(editor)) {
        spinBox->setValue(m_value);
    }
}

void IntProperty::updateValue(QWidget *editor)
{
    if (QSpinBox *spinBox = qobject_cast<QSpinBox*>(editor)) {
        int newValue = spinBox->value();

        if (newValue != m_value) {
            m_value = newValue;
            setChanged(true);
        }
    }
}

// -------------------------------------------------------------------------
RectProperty::RectProperty(const QRect &value, const QString &name)
    : AbstractPropertyGroup(name)
{
    IntProperty *px = new IntProperty(value.x(), QLatin1String("x"));
    px->setFake(true);
    px->setParent(this);

    IntProperty *py = new IntProperty(value.y(), QLatin1String("y"));
    py->setFake(true);
    py->setParent(this);

    IntProperty *pw = new IntProperty(value.width(), QLatin1String("width"));
    pw->setFake(true);
    pw->setParent(this);
    pw->setRange(0, INT_MAX);

    IntProperty *ph = new IntProperty(value.height(), QLatin1String("height"));
    ph->setFake(true);
    ph->setParent(this);
    ph->setRange(0, INT_MAX);

    m_properties << px << py << pw << ph;
}

QVariant RectProperty::value() const
{
    return QRect(propertyAt(0)->value().toInt(),
                 propertyAt(1)->value().toInt(),
                 propertyAt(2)->value().toInt(),
                 propertyAt(3)->value().toInt());
}

void RectProperty::setValue(const QVariant &value)
{
    QRect pt = value.toRect();
    propertyAt(0)->setValue(pt.x());
    propertyAt(1)->setValue(pt.y());
    propertyAt(2)->setValue(pt.width());
    propertyAt(3)->setValue(pt.height());
}


// -------------------------------------------------------------------------
ColorProperty::ColorProperty(const QColor &value, const QString &name)
    : AbstractPropertyGroup(name)
{
    IntProperty *r = new IntProperty(value.red(), QLatin1String("red"));
    r->setFake(true);
    r->setRange(0, 255);
    r->setParent(this);

    IntProperty *g = new IntProperty(value.green(), QLatin1String("green"));
    g->setFake(true);
    g->setRange(0, 255);
    g->setParent(this);

    IntProperty *b = new IntProperty(value.blue(), QLatin1String("blue"));
    b->setFake(true);
    b->setRange(0, 255);
    b->setParent(this);

    m_properties << r << g << b;
}

QVariant ColorProperty::value() const
{
    return qVariantFromValue(QColor(propertyAt(0)->value().toInt(),
                  propertyAt(1)->value().toInt(),
                  propertyAt(2)->value().toInt()));
}

void ColorProperty::setValue(const QVariant &value)
{
    QColor c = qvariant_cast<QColor>(value);
    propertyAt(0)->setValue(c.red());
    propertyAt(1)->setValue(c.green());
    propertyAt(2)->setValue(c.blue());
}

QVariant ColorProperty::decoration() const
{
    QPixmap pix(16, 16);
    pix.fill(qvariant_cast<QColor>(value()));
    return qVariantFromValue(pix);
}

// -------------------------------------------------------------------------
FontProperty::FontProperty(const QFont &value, const QString &name)
    : AbstractPropertyGroup(name)
{
    QStringList fonts = fontDatabase()->families();
    int index = fonts.indexOf(value.family());
    if (index == -1)
        index = 0;

    IProperty *i = 0;
    i = new ListProperty(fonts, index, QLatin1String("Family"));
    i->setFake(true);
    i->setParent(this);
    m_properties << i;

    int pointSize = value.pointSize();
    if (pointSize < 1) {
        // try to convert from pixel size and resolved font
        // see also code in FontProperty::setValue
        pointSize = QFontInfo(value).pointSize();
    }
    IntProperty *ii = new IntProperty(pointSize, QLatin1String("Point Size"));
    ii->setFake(true);
    ii->setRange(1, INT_MAX); // ### check
    ii->setParent(this);
    m_properties << ii;

    i = new BoolProperty(value.bold(), QLatin1String("Bold"));
    i->setFake(true);
    i->setParent(this);
    m_properties << i;

    i = new BoolProperty(value.italic(), QLatin1String("Italic"));
    i->setFake(true);
    i->setParent(this);
    m_properties << i;

    i = new BoolProperty(value.underline(), QLatin1String("Underline"));
    i->setFake(true);
    i->setParent(this);
    m_properties << i;

    i = new BoolProperty(value.strikeOut(), QLatin1String("Strikeout"));
    i->setFake(true);
    i->setParent(this);
    m_properties << i;
}

QVariant FontProperty::value() const
{
    QFont fnt;
    fnt.setFamily(propertyAt(0)->toString());
    fnt.setPointSize(propertyAt(1)->value().toInt());
    fnt.setBold(propertyAt(2)->value().toBool());
    fnt.setItalic(propertyAt(3)->value().toBool());
    fnt.setUnderline(propertyAt(4)->value().toBool());
    fnt.setStrikeOut(propertyAt(5)->value().toBool());

    return qVariantFromValue(fnt);
}

void FontProperty::setValue(const QVariant &value)
{
    QFont fnt = qvariant_cast<QFont>(value);

    int family = fontDatabase()->families().indexOf(fnt.family());

    propertyAt(0)->setValue(family);

    int pointSize = fnt.pointSize();
    if (pointSize < 1) {
        // try to convert from pixel size and resolved font
        // see also code in FontProperty constructor
        pointSize = QFontInfo(fnt).pointSize();
    }
    propertyAt(1)->setValue(pointSize);

    propertyAt(2)->setValue(fnt.bold());
    propertyAt(3)->setValue(fnt.italic());
    propertyAt(4)->setValue(fnt.underline());
    propertyAt(5)->setValue(fnt.strikeOut());
}

QVariant FontProperty::decoration() const
{
    QPixmap pix(16, 16);
    pix.fill(Qt::white);
    QPainter p(&pix);
    QFont fnt = qvariant_cast<QFont>(value());
    fnt.setPointSize(10); // ### always 10pt!!
    p.drawRect(0, 0, 16, 16);
    p.setFont(fnt);
    p.drawText(0, 16 - 2, QLatin1String("Aa")); // ### 2px for the border!!
    return qVariantFromValue(pix);
}

QString FontProperty::toString() const
{
    QString family = propertyAt(0)->toString();
    QString pointSize = propertyAt(1)->value().toString();

    return QLatin1String("  ")  // ### temp hack
        + QLatin1String("[") + family + QLatin1String(", ") + pointSize + QLatin1String("]");
}

// -------------------------------------------------------------------------
MapProperty::MapProperty(const QMap<QString, QVariant> &items,
                         const QVariant &value,
                         const QString &name)
    : AbstractProperty<QVariant>(value, name),
      m_items(items),
      m_keys(m_items.keys())
{
}

QStringList MapProperty::keys() const
{
    return m_keys;
}

QMap<QString, QVariant> MapProperty::items() const
{
    return m_items;
}

QVariant MapProperty::value() const
{
    return m_value;
}

void MapProperty::setValue(const QVariant &value)
{
   if (qVariantCanConvert<EnumType>(value)) {
        EnumType e = qvariant_cast<EnumType>(value);
        m_value = e.value;
    } else if (qVariantCanConvert<FlagType>(value)) {
        FlagType e = qvariant_cast<FlagType>(value);
        m_value = e.value;
    } else {
        m_value = value;
    }
}

QString MapProperty::toString() const
{
    return m_items.key(m_value);
}

int MapProperty::indexOf(const QVariant &value) const
{
    QString key = m_items.key(value);
    return m_keys.indexOf(key);
}

QWidget *MapProperty::createEditor(QWidget *parent, const QObject *target, const char *receiver) const
{
    QComboBox *combo = new QComboBox(parent);
    combo->view()->setTextElideMode(Qt::ElideLeft);
    combo->setFrame(0);

    combo->addItems(m_keys);
    QObject::connect(combo, SIGNAL(activated(int)), target, receiver);

    return combo;
}

void MapProperty::updateEditorContents(QWidget *editor)
{
    if (QComboBox *combo = qobject_cast<QComboBox*>(editor)) {
        combo->setCurrentIndex(indexOf(m_value));
    }
}

void MapProperty::updateValue(QWidget *editor)
{
    if (QComboBox *combo = qobject_cast<QComboBox*>(editor)) {
        QString key = combo->currentText();
        QVariant newValue = m_items.value(key);

        if (newValue != m_value) {
            m_value = newValue;
            setChanged(true);
        }
    }
}

// -------------------------------------------------------------------------
FlagsProperty::FlagsProperty(const QMap<QString, QVariant> &items, unsigned int value,
                             const QString &name)
    : MapProperty(items, QVariant(value), name)
{
}

QWidget *FlagsProperty::createEditor(QWidget *parent, const QObject *target, const char *receiver) const
{
    QList<FlagBoxModelItem> l;
    QMapIterator<QString, QVariant> it(items());
    unsigned int v = m_value.toUInt();
    int initialIndex = -1;
    int i = 0;
    while (it.hasNext()) {
        it.next();
        unsigned int value = it.value().toUInt();
        bool checked = (value == 0) ? (v == 0) : ((value & v) == value);
        l.append(FlagBoxModelItem(it.key(), value, checked));
        if ((value & v) == value) {
            if (initialIndex == -1)
                initialIndex = i;
            else if (FlagBoxModel::bitcount(value) > FlagBoxModel::bitcount(l.at(initialIndex).value()))
                initialIndex = i;
        }
        ++i;
    }

    FlagBox *editor = new FlagBox(parent);
    editor->setItems(l);
    editor->setCurrentIndex(initialIndex);
    QObject::connect(editor, SIGNAL(activated(int)), target, receiver);
    return editor;
}

void FlagsProperty::updateEditorContents(QWidget *editor)
{
    FlagBox *box = qobject_cast<FlagBox*>(editor);
    if (box == 0)
        return;

    box->view()->reset();
}

void FlagsProperty::updateValue(QWidget *editor)
{
    FlagBox *box = qobject_cast<FlagBox*>(editor);
    if ((box == 0) || (box->currentIndex() < 0))
        return;

    unsigned int newValue = 0;

    FlagBoxModelItem &thisItem = box->item(box->currentIndex());
    if (thisItem.value() == 0) {
        // Uncheck all items except 0-mask
        for (int i=0; i<box->count(); ++i)
            box->item(i).setChecked(i == box->currentIndex());
    } else {
        // Compute new value, without including (additional) supermasks
        if (thisItem.isChecked())
            newValue = thisItem.value();
        for (int i=0; i<box->count(); ++i) {
            FlagBoxModelItem &item = box->item(i);
            if (item.isChecked() && (FlagBoxModel::bitcount(item.value()) == 1))
                newValue |= item.value();
        }
        if (newValue == 0) {
            // Uncheck all items except 0-mask
            for (int i=0; i<box->count(); ++i) {
                FlagBoxModelItem &item = box->item(i);
                item.setChecked(item.value() == 0);
            }
        } else if (newValue == m_value) {
            if (!thisItem.isChecked() && (FlagBoxModel::bitcount(thisItem.value()) > 1)) {
                // We unchecked something, but the original value still holds
                thisItem.setChecked(true);
            }
        } else {
            // Make sure 0-mask is not selected
            for (int i=0; i<box->count(); ++i) {
                FlagBoxModelItem &item = box->item(i);
                if (item.value() == 0)
                        item.setChecked(false);
            }
            // Check/uncheck proper masks
            if (thisItem.isChecked()) {
                // Make sure submasks and supermasks are selected
                for (int i=0; i<box->count(); ++i) {
                    FlagBoxModelItem &item = box->item(i);
                    if ((item.value() != 0) && ((item.value() & newValue) == item.value()) && !item.isChecked())
                        item.setChecked(true);
                }
            } else {
                // Make sure supermasks are not selected if they're no longer valid
                for (int i=0; i<box->count(); ++i) {
                    FlagBoxModelItem &item = box->item(i);
                    if (item.isChecked() && ((item.value() == thisItem.value()) || ((item.value() & newValue) != item.value())))
                        item.setChecked(false);
                }
            }
        }
    }

    if (newValue != m_value) {
        m_value = newValue;
        setChanged(true);
    }
}

// -------------------------------------------------------------------------
SizePolicyProperty::SizePolicyProperty(const QSizePolicy &value, const QString &name)
    : AbstractPropertyGroup(name)
{
    QStringList lst;
    lst << QString::fromUtf8("Fixed")
        << QString::fromUtf8("Minimum")
        << QString::fromUtf8("Maximum")
        << QString::fromUtf8("Preferred")
        << QString::fromUtf8("MinimumExpanding")
        << QString::fromUtf8("Expanding")
        << QString::fromUtf8("Ignored");

    IProperty *i = 0;
    i = new ListProperty(lst, size_type_to_int(value.horizontalPolicy()), QLatin1String("hSizeType"));
    i->setFake(true);
    i->setParent(this);
    m_properties << i;

    i = new ListProperty(lst, size_type_to_int(value.verticalPolicy()), QLatin1String("vSizeType"));
    i->setFake(true);
    i->setParent(this);
    m_properties << i;

    i = new IntProperty(value.horizontalStretch(), QLatin1String("horizontalStretch"));