/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the ActiveQt framework of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:BSD$

** You may use this file under the terms of the BSD license as follows:

**

** "Redistribution and use in source and binary forms, with or without

** modification, are permitted provided that the following conditions are

** met:

**   * Redistributions of source code must retain the above copyright

**     notice, this list of conditions and the following disclaimer.

**   * Redistributions in binary form must reproduce the above copyright

**     notice, this list of conditions and the following disclaimer in

**     the documentation and/or other materials provided with the

**     distribution.

**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor

**     the names of its contributors may be used to endorse or promote

**     products derived from this software without specific prior written

**     permission.

**

** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."

** $QT_END_LICENSE$

**

****************************************************************************/

#include "qaxselect.h"

#ifndef QT_NO_WIN_ACTIVEQT

#include <qt_windows.h>

QT_BEGIN_NAMESPACE

class ControlList : public QAbstractListModel

{

public:

    ControlList(QObject *parent=0)

    : QAbstractListModel(parent) 

    {

        HKEY classes_key;

        RegOpenKeyEx(HKEY_CLASSES_ROOT, L"CLSID", 0, KEY_READ, &classes_key);

        if (!classes_key)

            return;

        DWORD index = 0;

        LONG result = 0;

        wchar_t buffer[256];

        DWORD szBuffer = sizeof(buffer) / sizeof(wchar_t);

        FILETIME ft;

        do {

            result = RegEnumKeyEx(classes_key, index, buffer, &szBuffer, 0, 0, 0, &ft);

            szBuffer = sizeof(buffer) / sizeof(wchar_t);

            if (result == ERROR_SUCCESS) {

                HKEY sub_key;

                QString clsid = QString::fromWCharArray(buffer);

                result = RegOpenKeyEx(classes_key, reinterpret_cast<const wchar_t *>(QString(clsid + "\\Control").utf16()), 0, KEY_READ, &sub_key);

                if (result == ERROR_SUCCESS) {

                    RegCloseKey(sub_key);

                    RegistryQueryValue(classes_key, buffer, (LPBYTE)buffer, &szBuffer);

                    QString name = QString::fromWCharArray(buffer);

                    controls << name;

                    clsids.insert(name, clsid);

                }

                result = ERROR_SUCCESS;

            }

            szBuffer = sizeof(buffer) / sizeof(wchar_t);

            ++index;

        } while (result == ERROR_SUCCESS);

        RegCloseKey(classes_key);

        controls.sort();

    }

    LONG RegistryQueryValue(HKEY hKey, LPCWSTR lpSubKey, LPBYTE lpData, LPDWORD lpcbData)

    {

        LONG ret = ERROR_FILE_NOT_FOUND;

        HKEY hSubKey = NULL;

        RegOpenKeyEx(hKey, lpSubKey, 0, KEY_READ, &hSubKey);

        if (hSubKey) {

            ret = RegQueryValueEx(hSubKey, 0, 0, 0, lpData, lpcbData);

            RegCloseKey(hSubKey);

        }

        return ret;

    }

    int rowCount(const QModelIndex & = QModelIndex()) const { return controls.count(); }

    QVariant data(const QModelIndex &index, int role) const;

private:

    QStringList controls;

    QMap<QString, QString> clsids;

};

QVariant ControlList::data(const QModelIndex &index, int role) const

{

    if (!index.isValid())

        return QVariant();

    if (role == Qt::DisplayRole)

        return controls.at(index.row());

    if (role == Qt::UserRole)

        return clsids.value(controls.at(index.row()));

    return QVariant();

}

QAxSelect::QAxSelect(QWidget *parent, Qt::WindowFlags f)

: QDialog(parent, f)

{

#ifndef QT_NO_CURSOR

    QApplication::setOverrideCursor(Qt::WaitCursor);

#endif

    setupUi(this);

    ActiveXList->setModel(new ControlList(this));

    connect(ActiveXList->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),

        this, SLOT(on_ActiveXList_clicked(QModelIndex)));

#ifndef QT_NO_CURSOR

    QApplication::restoreOverrideCursor();

#endif

    ActiveXList->setFocus();

    connect(buttonOk, SIGNAL(clicked()), this, SLOT(accept()));

    connect(buttonCancel, SIGNAL(clicked()), this, SLOT(reject()));

}

void QAxSelect::on_ActiveXList_clicked(const QModelIndex &index)

{

    QVariant clsid = ActiveXList->model()->data(index, Qt::UserRole);

    ActiveX->setText(clsid.toString());

}

void QAxSelect::on_ActiveXList_doubleClicked(const QModelIndex &index)

{

    QVariant clsid = ActiveXList->model()->data(index, Qt::UserRole);

    ActiveX->setText(clsid.toString());

    accept();

}

QT_END_NAMESPACE

#endif // QT_NO_WIN_ACTIVEQT