propertyeditor.cpp

qt-x11-opensource-src-4.1.4.tar.gz源码

    : AbstractProperty<QPixmap>(pixmap, name)
{
    m_core = core;
}

void PixmapProperty::setValue(const QVariant &value)
{
    m_value = qvariant_cast<QPixmap>(value);
}

QString PixmapProperty::toString() const
{
    QString path = m_core->iconCache()->pixmapToFilePath(m_value);
    return QFileInfo(path).fileName();
}

QVariant PixmapProperty::decoration() const
{
    static QIcon empty_icon;
    if (empty_icon.isNull())
        empty_icon = QIcon(QLatin1String(":/trolltech/formeditor/images/emptyicon.png"));

    if (m_value.isNull())
        return qVariantFromValue(empty_icon);
    return qVariantFromValue(QIcon(m_value));
}

QWidget *PixmapProperty::createEditor(QWidget *parent, const QObject *target, const char *receiver) const
{
    GraphicsPropertyEditor *editor = new GraphicsPropertyEditor(m_core, m_value, parent);

    QObject::connect(editor, SIGNAL(pixmapChanged(QPixmap)), target, receiver);

    return editor;
}

void PixmapProperty::updateEditorContents(QWidget *editor)
{
    if (GraphicsPropertyEditor *ed = qobject_cast<GraphicsPropertyEditor*>(editor)) {
        ed->setPixmap(m_value);
    }
}

void PixmapProperty::updateValue(QWidget *editor)
{
    if (GraphicsPropertyEditor *ed = qobject_cast<GraphicsPropertyEditor*>(editor)) {
        QPixmap newValue = ed->pixmap();

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


// -------------------------------------------------------------------------------------

struct Group
{
    QString name;
    QList<IProperty*> properties;

    inline Group() {}
    inline Group(const QString &n): name(n) {}

    inline bool operator == (const Group &other) const
    { return name == other.name; }
};

void PropertyEditor::createPropertySheet(PropertyCollection *root, QObject *object)
{
    QList<Group> groups;

    QExtensionManager *m = m_core->extensionManager();

    bool isMainContainer = false;
    if (QWidget *widget = qobject_cast<QWidget*>(object)) {
        if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(widget)) {
            isMainContainer = (fw->mainContainer() == widget);
        }
    }

    m_prop_sheet = qobject_cast<QDesignerPropertySheetExtension*>(m->extension(object, Q_TYPEID(QDesignerPropertySheetExtension)));
    for (int i=0; i<m_prop_sheet->count(); ++i) {
        if (!m_prop_sheet->isVisible(i))
            continue;

        QString pname = m_prop_sheet->propertyName(i);
        QVariant value = m_prop_sheet->property(i);

        IProperty *p = 0;
        if (qVariantCanConvert<FlagType>(value)) {
            FlagType f = qvariant_cast<FlagType>(value);
            if (pname == QLatin1String("alignment")) {
                if (qobject_cast<QLineEdit *>(object)) {
                    QStringList align_keys = QStringList()
                        << QString::fromUtf8("Qt::AlignLeft")
                        << QString::fromUtf8("Qt::AlignHCenter")
                        << QString::fromUtf8("Qt::AlignRight");
                    QMap<QString, QVariant> align_map;
                    foreach (QString align, align_keys) {
                        align_map.insert(align, f.items.value(align));
                    }
                    p = new MapProperty(align_map, uint(f.value.toInt() & Qt::AlignHorizontal_Mask),
                                    QLatin1String("alignment"));
                } else {
                    p = new AlignmentProperty(f.items, Qt::Alignment(f.value.toInt()), pname);
                }
            } else {
                p = new FlagsProperty(f.items, f.value.toInt(), pname);
            }
        } else if (qVariantCanConvert<EnumType>(value)) {
            EnumType e = qvariant_cast<EnumType>(value);
            p = new MapProperty(e.items, e.value, pname);
        }

        if (!p) {
            switch (value.type()) {
            case 0:
                p = createSpecialProperty(value, pname);
                break;
            case QVariant::Int:
                p = new IntProperty(value.toInt(), pname);
                break;
            case QVariant::UInt:
                p = new IntProperty(value.toUInt(), pname);
                break;
            case QVariant::Double:
                p = new DoubleProperty(value.toDouble(), pname);
                break;
            case QVariant::Bool:
                p = new BoolProperty(value.toBool(), pname);
                break;
            case QVariant::ByteArray:
                p = new StringProperty(QString::fromUtf8(value.toByteArray()), pname);
                break;
            case QVariant::String: {
                if (pname != QLatin1String("objectName")
                        && qobject_cast<MetaDataBase*>(core()->metaDataBase()) && core()->metaDataBase()->item(object)) {
                    MetaDataBaseItem *item = static_cast<MetaDataBaseItem*>(core()->metaDataBase()->item(object));
                    p = new StringProperty(value.toString(), pname, true, item->propertyComment(pname));
                } else {
                    StringProperty *sprop = new StringProperty(value.toString(), pname);
                    p = sprop;

                    if (pname == QLatin1String("objectName")) {
                        sprop->setCheckValidObjectName(true);
                        sprop->setAllowScope(isMainContainer);
                    }
                }
            } break;
            case QVariant::Size:
                p = new SizeProperty(value.toSize(), pname);
                break;
            case QVariant::Point:
                p = new PointProperty(value.toPoint(), pname);
                break;
            case QVariant::Rect:
                p = new RectProperty(value.toRect(), pname);
                break;
            case QVariant::Icon:
                p = new IconProperty(m_core, qvariant_cast<QIcon>(value), pname);
                break;
            case QVariant::Pixmap:
                p = new PixmapProperty(m_core, qvariant_cast<QPixmap>(value), pname);
                break;
            case QVariant::Font:
                p = new FontProperty(qvariant_cast<QFont>(value), pname);
                break;
            case QVariant::Color:
                p = new ColorProperty(qvariant_cast<QColor>(value), pname);
                break;
            case QVariant::SizePolicy:
                p = new SizePolicyProperty(qvariant_cast<QSizePolicy>(value), pname);
                break;
            case QVariant::DateTime:
                p = new DateTimeProperty(value.toDateTime(), pname);
                break;
            case QVariant::Date:
                p = new DateProperty(value.toDate(), pname);
                break;
            case QVariant::Time:
                p = new TimeProperty(value.toTime(), pname);
                break;
            case QVariant::Cursor:
                p = new CursorProperty(qvariant_cast<QCursor>(value), pname);
                break;
            case QVariant::KeySequence:
                p = new StringProperty(qvariant_cast<QKeySequence>(value), pname);
                break;
            case QVariant::Palette:
                p = new PaletteProperty(qvariant_cast<QPalette>(value),
                                qobject_cast<QWidget *>(object), pname);
                break;
            default:
                // ### qWarning() << "property" << pname << "with type" << value.type() << "not supported yet!";
                break;
            } // end switch
        }

        if (p != 0) {
            p->setHasReset(m_prop_sheet->hasReset(i));
            p->setChanged(m_prop_sheet->isChanged(i));
            p->setDirty(false);

            QString pgroup = m_prop_sheet->propertyGroup(i);
            int groupIndex = groups.indexOf(pgroup);
            if (groupIndex == -1) {
                groupIndex = groups.count();
                groups.append(Group(pgroup));
            }

            QList<IProperty*> &groupProperties = groups[groupIndex].properties;
            groupProperties.append(p);
        }
    }

    foreach (Group g, groups) {
        root->addProperty(new SeparatorProperty(QString(), g.name));
        foreach (IProperty *p, g.properties) {
            root->addProperty(p);
        }
    }
}

PropertyEditor::PropertyEditor(QDesignerFormEditorInterface *core,
            QWidget *parent, Qt::WindowFlags flags)
    : QDesignerPropertyEditorInterface(parent, flags),
      m_core(core),
      m_properties(0)
{
    QVBoxLayout *lay = new QVBoxLayout(this);
    lay->setMargin(0);
    m_editor = new QPropertyEditor(this);
    lay->addWidget(m_editor);
    m_prop_sheet = 0;

    connect(m_editor, SIGNAL(propertyChanged(IProperty*)),
        this, SLOT(firePropertyChanged(IProperty*)));
    connect(m_editor->editorModel(), SIGNAL(resetProperty(QString)),
                this, SLOT(resetProperty(QString)));
}

PropertyEditor::~PropertyEditor()
{
}

bool PropertyEditor::isReadOnly() const
{
    return m_editor->isReadOnly();
}

void PropertyEditor::setReadOnly(bool readOnly)
{
    m_editor->setReadOnly(readOnly);
}

QDesignerFormEditorInterface *PropertyEditor::core() const
{
    return m_core;
}

IProperty *PropertyEditor::propertyByName(IProperty *p, const QString &name)
{
    if (p->propertyName() == name)
        return p;

    if (p->kind() == IProperty::Property_Group) {
        IPropertyGroup *g = static_cast<IPropertyGroup*>(p);
        for (int i=0; i<g->propertyCount(); ++i)
            if (IProperty *c = propertyByName(g->propertyAt(i), name))
                return c;
    }

    return 0;
}

void PropertyEditor::setPropertyValue(const QString &name, const QVariant &value, bool changed)
{
    if (isReadOnly())
        return;

    if (IProperty *p = propertyByName(m_editor->initialInput(), name)) {
        if (p->value() != value)
            p->setValue(value);

        p->setChanged(changed);
        p->setDirty(false);

        m_editor->editorModel()->refresh(p);
    }
}

void PropertyEditor::firePropertyChanged(IProperty *p)
{
    if (isReadOnly())
        return;

    if (object() && p->parent() && p->propertyName() == QLatin1String("comment")) {
        QString parentProperty = p->parent()->propertyName();
        MetaDataBase *db = qobject_cast<MetaDataBase*>(core()->metaDataBase());

        if (db && db->item(object())) {
            MetaDataBaseItem *item = static_cast<MetaDataBaseItem*>(db->item(object()));
            item->setPropertyComment(parentProperty, p->value().toString());
            emit propertyChanged(parentProperty, p->parent()->value());
        }
        return;
    }

    emit propertyChanged(p->propertyName(), p->value());
}

void PropertyEditor::clearDirty(IProperty *p)
{
    p->setDirty(false);

    if (p->kind() == IProperty::Property_Normal)
        return;

    IPropertyGroup *g = static_cast<IPropertyGroup*>(p);
    for (int i=0; i<g->propertyCount(); ++i)
        clearDirty(g->propertyAt(i));
}

void PropertyEditor::setObject(QObject *object)
{
    if (m_editor->initialInput())
        clearDirty(m_editor->initialInput());

    m_object = object;
    if (QAction *action = qobject_cast<QAction*>(m_object)) {
        if (action->menu())
            m_object = action->menu();
    }

    IPropertyGroup *old_properties = m_properties;
    m_properties = 0;
    m_prop_sheet = 0;

    if (m_object) {
        PropertyCollection *collection = new PropertyCollection(QLatin1String("<root>"));
        createPropertySheet(collection, object);
        m_properties = collection;
    }

    m_editor->setInitialInput(m_properties);

    delete old_properties;
}

void PropertyEditor::resetProperty(const QString &prop_name)
{
    int idx = m_prop_sheet->indexOf(prop_name);

    if (idx == -1) {
        qWarning("PropertyEditor::resetProperty(): no property \"%s\"",
                    prop_name.toUtf8().constData());
        return;
    }

    QWidget *w = qobject_cast<QWidget*>(m_object);
    if (w == 0) {
        qWarning("PropertyEditor::resetProperty(): object is not a widget");
        return;
    }

    QDesignerFormWindowInterface *form = QDesignerFormWindowInterface::findFormWindow(w);
    if (form == 0) {
        qWarning("PropertyEditor::resetProperty(): widget does not belong to any form");
        return;
    }

    form->cursor()->resetWidgetProperty(w, prop_name);
}

QString PropertyEditor::currentPropertyName() const
{
    QModelIndex index = m_editor->selectionModel()->currentIndex();
    if (index.isValid()) {
        IProperty *property = static_cast<IProperty*>(index.internalPointer());

        while (property && property->isFake())
            property = property->parent();

        if (property)
            return property->propertyName();
    }

    return QString();
}

#include "propertyeditor.moc"