Subversion Repositories tpanel

/*

 * Copyright (C) 2020 to 2022 by Andreas Theofilu <andreas@theosys.at>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA

 */

#include <functional>

#include <map>

#include <QTextObject>

#include <QLabel>

#include <QImage>

#include <QWidget>

#include <QPropertyAnimation>

#include <QListWidget>

#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)

#include <QtMultimedia/QMediaPlayer>

#include <QtMultimediaWidgets/QVideoWidget>

#else

#include <QTextLayout>

#endif

#include "tobject.h"

#include "terror.h"

#include "tqscrollarea.h"

#include "tlock.h"

#include "tqtmain.h"

#include "tresources.h"

using std::string;

using std::map;

using std::pair;

TObject::TObject()

{

    DECL_TRACER("TObject::TObject()");

}

TObject::~TObject()

{

    DECL_TRACER("TObject::~TObject()");

    clear();

}

void TObject::clear(bool force)

{

    DECL_TRACER("TObject::clear()");

    if (mObjects.empty())

        return;

    std::map<ulong, OBJECT_t>::iterator iter;

    for (iter = mObjects.begin(); iter != mObjects.end(); ++iter)

    {

        if (!force)

            dropContent(&iter->second);

    }

    mObjects.clear();

}

void TObject::dropContent(OBJECT_t* obj, bool lock)

{

    DECL_TRACER("TObject::dropContent(OBJECT_t* obj, bool lock)");

    if (lock)

        TLOCKER(mutex_obj);

    try

    {

        switch (obj->type)

        {

            case OBJ_TEXT:

            case OBJ_INPUT:

                if (obj->object.plaintext)

                {

                    obj->object.plaintext->close();

                    obj->object.plaintext = nullptr;

                }

                obj->wid = 0;

                obj->invalid = true;

            break;

            case OBJ_BUTTON:

                if (obj->object.label)

                    obj->object.label = nullptr;

                obj->invalid = true;

            break;

            // This are the parent widgets (windows) and must be deleted.

            // If this widgets are deleted, Qt deletes their children.

            case OBJ_PAGE:

            case OBJ_SUBPAGE:

                obj->invalid = true;

                if (obj->object.widget)

                {

                    if (obj->type == OBJ_SUBPAGE)

                    {

                        obj->object.widget->close();        // This deletes all childs and the widget itself

                        obj->object.widget = nullptr;

                    }

                    else

                        obj->object.widget->hide();         // Don't delete a page because it is still stored in the stacked widget.

                }

            break;

            case OBJ_SUBVIEW:

                obj->invalid = true;

                if (obj->object.area)

                {

                    if (mMainWindow)

                        mMainWindow->disconnectArea(obj->object.area);

                    delete obj->object.area;

                    obj->object.area = nullptr;

                }

            break;

            case OBJ_VIDEO:

                if (obj->object.vwidget)

                {

#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)

                    if (obj->player)

                        delete obj->player;

#endif

                    obj->object.vwidget = nullptr;

                    obj->player = nullptr;

                }

                obj->invalid = true;

            break;

            case OBJ_LIST:

                if (obj->object.list)

                {

                    if (mMainWindow)

                        mMainWindow->disconnectList(obj->object.list);

                    obj->object.list->close();

                    obj->object.list = nullptr;

                }

                obj->invalid = true;

            break;

            default:

                obj->invalid = true;

                break;

        }

    }

    catch (std::exception& e)

    {

        MSG_ERROR("Error freeing an object: " << e.what());

    }

}

bool TObject::addObject(OBJECT_t& obj)

{

    DECL_TRACER("TObject::addObject(OBJECT_t& obj)");

    TLOCKER(mutex_obj);

    if (obj.handle == 0 || obj.type == OBJ_NONE)

        return false;

    if (mObjects.find(obj.handle) != mObjects.end())

        return false;

    const auto [o, success] = mObjects.insert(pair<ulong, OBJECT_t>(obj.handle, obj));

    return success;

}

TObject::OBJECT_t *TObject::findObject(ulong handle)

{

    DECL_TRACER("TObject::findObject(ulong handle)");

    map<ulong, OBJECT_t>::iterator iter = mObjects.find(handle);

    if (iter != mObjects.end())

        return &iter->second;

    return nullptr;

}

TObject::OBJECT_t * TObject::findObject(WId id)

{

    DECL_TRACER("TObject::findObject(WId id)");

    if (mObjects.empty())

        return nullptr;

    map<ulong, OBJECT_t>::iterator iter;

    for (iter = mObjects.begin(); iter != mObjects.end(); ++iter)

    {

        if (iter->second.wid == id)

            return &iter->second;

    }

    return nullptr;

}

TObject::OBJECT_t *TObject::findFirstChild(ulong handle)

{

    DECL_TRACER("TObject::findFirstChild(ulong handle)");

    map<ulong, OBJECT_t>::iterator iter;

    for (iter = mObjects.begin(); iter != mObjects.end(); ++iter)

    {

        if (iter->first != (handle & 0xffff0000) && (iter->first & 0xffff0000) == (handle & 0xffff0000))

            return &iter->second;

    }

    return nullptr;

}

TObject::OBJECT_t *TObject::findNextChild(ulong handle)

{

    DECL_TRACER("TObject::findNextChild(ulong handle)");

    map<ulong, OBJECT_t>::iterator iter;

    bool next = true;

    for (iter = mObjects.find(handle); iter != mObjects.end(); ++iter)

    {

        if (next)

        {

            next = false;

            continue;

        }

        if ((iter->first & 0xffff0000) == (handle & 0xffff0000))

            return &iter->second;

    }

    return nullptr;

}

TObject::OBJECT_t * TObject::getMarkedRemove()

{

    DECL_TRACER("TObject::getMarkedRemove()");

    map<ulong, OBJECT_t>::iterator iter;

    for (iter = mObjects.begin(); iter != mObjects.end(); ++iter)

    {

        if (iter->second.remove)

            return &iter->second;

    }

    return nullptr;

}

TObject::OBJECT_t * TObject::getNextMarkedRemove(TObject::OBJECT_t* object)

{

    DECL_TRACER("TObject::getNextMarkedRemove(TObject::OBJECT_t* obj)");

    if (!object)

        return nullptr;

    map<ulong, OBJECT_t>::iterator iter;

    bool next = true;

    for (iter = mObjects.find(object->handle); iter != mObjects.end(); ++iter)

    {

        if (next)

        {

            next = false;

            continue;

        }

        if (iter->second.remove)

            return &iter->second;

    }

    return nullptr;

}

TObject::OBJECT_t *TObject::findFirstWindow()

{

    DECL_TRACER("TObject::getFirstWindow()");

    map<ulong, OBJECT_t>::iterator iter;

    for (iter = mObjects.begin(); iter != mObjects.end(); ++iter)

    {

        if (iter->second.type == OBJ_SUBPAGE)

            return &iter->second;

    }

    return nullptr;

}

TObject::OBJECT_t *TObject::findNextWindow(TObject::OBJECT_t *obj)

{

    DECL_TRACER("TObject::findNextWindow()");

    if (!obj)

        return nullptr;

    map<ulong, OBJECT_t>::iterator iter;

    bool next = true;

    for (iter = mObjects.find(obj->handle); iter != mObjects.end(); ++iter)

    {

        if (next)

        {

            next = false;

            continue;

        }

        if (iter->second.type == OBJ_SUBPAGE)

            return &iter->second;

    }

    return nullptr;

}

void TObject::removeObject(ulong handle, bool drop)

{

    DECL_TRACER("TObject::removeObject(ulong handle, bool drop)");

    if (!handle || mObjects.empty())

        return;

    TLOCKER(mutex_obj);

    map<ulong, OBJECT_t>::iterator iter = mObjects.find(handle);

    if (iter != mObjects.end())

    {

        if (drop)

            dropContent(&iter->second, false);

        mObjects.erase(iter);

    }

}

void TObject::removeAllChilds(ulong handle, bool drop)

{

    DECL_TRACER("TObject::removeAllChilds(ulong handle, bool drop)");

    if (!handle || mObjects.empty())

        return;

    TLOCKER(mutex_obj);

    map<ulong, OBJECT_t>::iterator iter;

    bool repeat = false;

    do

    {

        repeat = false;

        for (iter = mObjects.begin(); iter != mObjects.end(); ++iter)

        {

            if ((iter->first & 0xffff0000) == (handle & 0xffff0000) && iter->first != (handle & 0xffff0000))

            {

                if (drop)

                    dropContent(&iter->second, false);

                mObjects.erase(iter);

                repeat = true;

                break;

            }

        }

    }

    while (repeat);

}

void TObject::cleanMarked()

{

    DECL_TRACER("TObject::cleanMarked()");

    TLOCKER(mutex_obj);

    map<ulong, OBJECT_t>::iterator iter;

    bool repeat = false;

    do

    {

        repeat = false;

        for (iter = mObjects.begin(); iter != mObjects.end(); ++iter)

        {

            if (iter->second.remove && (!iter->second.animation || iter->second.animation->state() != QAbstractAnimation::Running))

            {

                if (iter->second.type == OBJ_SUBPAGE && iter->second.object.widget)

                {

                    iter->second.object.widget->close();

                    iter->second.object.widget = nullptr;

                }

                mObjects.erase(iter);

                repeat = true;

                break;

            }

        }

    }

    while (repeat);

}

void TObject::invalidateAllObjects()

{

    DECL_TRACER("TObject::invalidateAllObjects()");

    TLOCKER(mutex_obj);

    map<ulong, OBJECT_t>::iterator iter;

    for (iter = mObjects.begin(); iter != mObjects.end(); ++iter)

    {

        iter->second.remove = false;

        iter->second.invalid = true;

    }

}

void TObject::invalidateObject(ulong handle)

{

    DECL_TRACER("TObject::invalidateObject(ulong handle)");

    TLOCKER(mutex_obj);

    map<ulong, OBJECT_t>::iterator iter = mObjects.find(handle);

    if (iter != mObjects.end())

    {

        iter->second.remove = false;

        iter->second.invalid = true;

    }

}

void TObject::invalidateAllSubObjects(ulong handle)

{

    DECL_TRACER("TObject::invalidateAllSubObjects(ulong handle)");

    TLOCKER(mutex_obj);

    if (mObjects.empty())

        return;

    map<ulong, OBJECT_t>::iterator iter;

    bool first = true;

    for (iter = mObjects.find(handle); iter != mObjects.end(); ++iter)

    {

        if (first)

        {

            first = false;

            continue;

        }

        if ((iter->first & 0xffff0000) == handle)

        {

            MSG_DEBUG("Invalidating object " << handleToString(iter->first) << " of type " << objectToString(iter->second.type));

            iter->second.remove = false;

            iter->second.invalid = true;

            if (iter->second.type == OBJ_SUBVIEW && iter->second.object.area && mMainWindow)

                mMainWindow->disconnectArea(iter->second.object.area);

            else if (iter->second.type == OBJ_LIST && iter->second.object.list && mMainWindow)

                mMainWindow->disconnectList(iter->second.object.list);

        }

    }

}

bool TObject::enableObject(ulong handle)

{

    DECL_TRACER("TObject::enableObject(ulong handle)");

    TLOCKER(mutex_obj);

    map<ulong, OBJECT_t>::iterator iter = mObjects.find(handle);

    if (iter != mObjects.end())

    {

        if (!iter->second.object.widget)

        {

            iter->second.remove = true;

            MSG_ERROR("Object " << handleToString(iter->first) << " of type " << objectToString(iter->second.type) << " has no QObject!");

            return false;

        }

        iter->second.remove = false;

        iter->second.invalid = false;

        if (iter->second.type == OBJ_SUBVIEW && iter->second.object.area && mMainWindow)

            mMainWindow->reconnectArea(iter->second.object.area);

        else if (iter->second.type == OBJ_LIST && iter->second.object.list && mMainWindow)

            mMainWindow->reconnectList(iter->second.object.list);

        return true;                         // We can savely return here because a handle is unique

    }

    return false;

}

bool TObject::enableAllSubObjects(ulong handle)

{

    DECL_TRACER("::enableAllSubObjects(ulong handle)");

    TLOCKER(mutex_obj);

    map<ulong, OBJECT_t>::iterator iter;

    bool ret = true;

    for (iter = mObjects.begin(); iter != mObjects.end(); ++iter)

    {

        if (iter->first != handle && (iter->first & 0xffff0000) == handle)

        {

            if (!iter->second.object.widget)

            {

                iter->second.remove = true;

                MSG_ERROR("Object " << handleToString(iter->first) << " of type " << objectToString(iter->second.type) << " has no QObject!");

                ret = false;

            }

            else

            {

                iter->second.remove = false;

                iter->second.invalid = false;

                if (iter->second.type == OBJ_SUBVIEW && iter->second.object.area && mMainWindow)

                    mMainWindow->reconnectArea(iter->second.object.area);

                else if (iter->second.type == OBJ_LIST && iter->second.object.list && mMainWindow)

                    mMainWindow->reconnectList(iter->second.object.list);

            }

        }

    }

    return ret;

}

string TObject::objectToString(TObject::OBJECT_TYPE o)

{

    switch(o)

    {

        case OBJ_BUTTON:  return "BUTTON"; break;

        case OBJ_INPUT:   return "INPUT"; break;

        case OBJ_NONE:    return "undefined"; break;

        case OBJ_PAGE:    return "PAGE"; break;

        case OBJ_SUBPAGE: return "SUBPAGE"; break;

        case OBJ_TEXT:    return "TEXT"; break;

        case OBJ_VIDEO:   return "VIDEO"; break;

        case OBJ_LIST:    return "LIST"; break;

        case OBJ_SUBVIEW: return "SUBVIEW"; break;

    }

    return string();   // Should not happen but is needed to satisfy the compiler.

}