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#include "qaxwidgetpropertysheet.h"

#include "qdesigneraxwidget.h"

#include <QtDesigner/QDesignerMemberSheetExtension>

#include <QtDesigner/QDesignerFormWindowInterface>

#include <QtDesigner/QDesignerFormEditorInterface>

#include <QtDesigner/QDesignerPropertyEditorInterface>

#include <QtDesigner/QExtensionManager>

#include <QtCore/QDebug>

#include <QtCore/QTimer>

static const char *geometryPropertyC = "geometry";

QT_BEGIN_NAMESPACE

const char *QAxWidgetPropertySheet::controlPropertyName = "control";

QAxWidgetPropertySheet::QAxWidgetPropertySheet(QDesignerAxWidget *object, QObject *parent) :

    QDesignerPropertySheet(object, parent),

    m_controlProperty(controlPropertyName),

    m_propertyGroup(QLatin1String("QAxWidget"))

{

     if (!axWidget()->loaded()) { // For some obscure reason....

        const int controlIndex = QDesignerPropertySheet::indexOf(m_controlProperty);

        setPropertyGroup(controlIndex, m_propertyGroup);

    }

}

bool QAxWidgetPropertySheet::isEnabled(int index) const

{

    if (propertyName(index) == m_controlProperty)

        return false;

    return QDesignerPropertySheet::isEnabled(index);

}

bool QAxWidgetPropertySheet::dynamicPropertiesAllowed() const

{

    return false;

}

QDesignerAxWidget *QAxWidgetPropertySheet::axWidget() const

{

    return static_cast<QDesignerAxWidget*>(object());

}

// Reload as the meta object changes.

bool QAxWidgetPropertySheet::reset(int index)

{

    const QString name = propertyName(index);

    QMap<QString, QVariant>::iterator it = m_currentProperties.changedProperties.find(name);

    if (it !=  m_currentProperties.changedProperties.end())

        m_currentProperties.changedProperties.erase(it);

    if (name != m_controlProperty)

        return QDesignerPropertySheet::reset(index);

    axWidget()->resetControl();

    QTimer::singleShot(0, this, SLOT(updatePropertySheet()));

    return true;

}

void QAxWidgetPropertySheet::setProperty(int index, const QVariant &value)

{

    // take care of all changed properties

    const QString name = propertyName(index);

    m_currentProperties.changedProperties[name] = value;

    if (name != m_controlProperty) {

        QDesignerPropertySheet::setProperty(index, value);

        return;

    }

    // Loading forms: Reload

    if (name == m_controlProperty) {

        const QString clsid = value.toString();

        if (clsid.isEmpty() || !axWidget()->loadControl(clsid))

            reset(index);

        else

            QTimer::singleShot(100, this, SLOT(updatePropertySheet()));

    }

}

int QAxWidgetPropertySheet::indexOf(const QString &name) const

{

    const int index = QDesignerPropertySheet::indexOf(name);

    if (index != -1)

        return index;

    // Loading before recreation of sheet in timer slot: Add a fake property to store the value

    const QVariant dummValue(0);

    QAxWidgetPropertySheet *that = const_cast<QAxWidgetPropertySheet *>(this);

    const int newIndex = that->createFakeProperty(name, dummValue);

    that->setPropertyGroup(newIndex, m_propertyGroup);

    return newIndex;

}

void QAxWidgetPropertySheet::updatePropertySheet()

{

    // refresh the property sheet (we are deleting m_currentProperties)

    struct SavedProperties tmp = m_currentProperties;

    QDesignerAxWidget *axw = axWidget();

    QDesignerFormWindowInterface *formWin = QDesignerFormWindowInterface::findFormWindow(axw);

    Q_ASSERT(formWin != 0);

    tmp.widget = axw;

    tmp.clsid = axw->control();

    // Delete the sheets as they cache the meta object and other information

    delete this;

    delete qt_extension<QDesignerMemberSheetExtension *>(formWin->core()->extensionManager(), axw);

    reloadPropertySheet(tmp, formWin);

}

void QAxWidgetPropertySheet::reloadPropertySheet(const struct SavedProperties &properties, QDesignerFormWindowInterface *formWin)

{

    QDesignerFormEditorInterface *core = formWin->core();

    //Recreation of the property sheet

    QDesignerPropertySheetExtension *sheet = qt_extension<QDesignerPropertySheetExtension *>(core->extensionManager(), properties.widget);

    bool foundGeometry = false;

    const QString geometryProperty = QLatin1String(geometryPropertyC);

    const SavedProperties::NamePropertyMap::const_iterator cend = properties.changedProperties.constEnd();

    for (SavedProperties::NamePropertyMap::const_iterator i = properties.changedProperties.constBegin(); i != cend; ++i) {

        const QString name = i.key();

        const int index = sheet->indexOf(name);

        if (index == -1)

            continue;

        // filter out geometry as this will resize the control

        // to is default size even if it is attached to an layout

        // but set the changed flag to work around preview bug...

        if (name == geometryProperty) {

            sheet->setChanged(index, true);

            foundGeometry = true;

            continue;

        }

        if (name == QLatin1String(controlPropertyName))	 {

            sheet->setChanged(index, !i.value().toString().isEmpty());

            continue;

        }

        sheet->setChanged(index, true);

        sheet->setProperty(index, i.value());

    }

    if (!foundGeometry) // Make sure geometry is always changed in Designer

        sheet->setChanged(sheet->indexOf(geometryProperty), true);

    if (core->propertyEditor()->object() == properties.widget) {

        formWin->clearSelection(true);

        formWin->selectWidget(properties.widget);

    }

}

QT_END_NAMESPACE