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path: root/HomeScreen/src/layouthandler.cpp
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#include "layouthandler.h"

LayoutHandler::LayoutHandler(QObject *parent) :
    QObject(parent),
    mp_dBusWindowManagerProxy(0),
    mp_dBusPopupProxy(0),
    m_visibleSurfaces(),
    m_invisibleSurfaces(),
    m_requestsToBeVisibleSurfaces()
{
    qDBusRegisterMetaType<SimplePoint>();
    qDBusRegisterMetaType<QList<SimplePoint> >();
    qDBusRegisterMetaType<LayoutArea>();
    qDBusRegisterMetaType<QList<LayoutArea> >();
    qDBusRegisterMetaType<Layout>();
    qDBusRegisterMetaType<QList<Layout> >();

    qDebug("D-Bus: connect to org.agl.windowmanager /windowmanager");
    mp_dBusWindowManagerProxy = new org::agl::windowmanager("org.agl.windowmanager",
                                              "/windowmanager",
                                              QDBusConnection::sessionBus(),
                                              0);
    qDebug("D-Bus: connect to org.agl.homescreen /Popup");
    mp_dBusPopupProxy = new org::agl::popup("org.agl.homescreen",
                                              "/Popup",
                                              QDBusConnection::sessionBus(),
                                              0);
}

LayoutHandler::~LayoutHandler()
{
    delete mp_dBusPopupProxy;
    delete mp_dBusWindowManagerProxy;
}

void LayoutHandler::setUpLayouts()
{
    qDebug("setUpLayouts");
    QList<LayoutArea> surfaceAreas;
    LayoutArea surfaceArea;

    const int SCREEN_WIDTH = 1080;
    const int SCREEN_HEIGHT = 1920;

    const int STATUSBAR_HEIGHT = 60;
    const int STATUSBAR_WIDTH = SCREEN_WIDTH;
    const int STATUSBAR_X = 0;
    const int STATUSBAR_Y = 0;
    const int CONTROLBAR_HEIGHT = 60;
    const int CONTROLBAR_WIDTH = SCREEN_WIDTH;
    const int CONTROLBAR_X = 0;
    const int CONTROLBAR_Y = SCREEN_HEIGHT - CONTROLBAR_HEIGHT;


    // layout 1:
    // one app surface, statusbar, control bar
    surfaceArea.x = 0;
    surfaceArea.y = STATUSBAR_HEIGHT;
    surfaceArea.width = SCREEN_WIDTH;
    surfaceArea.height = SCREEN_HEIGHT - STATUSBAR_HEIGHT - CONTROLBAR_HEIGHT;

    surfaceAreas.append(surfaceArea);

    mp_dBusWindowManagerProxy->addLayout(1, "one app", surfaceAreas);


    surfaceAreas.clear();

    // layout 2:
    // two app surfaces (one on top of the other), statusbar, control bar

    // top surface
    surfaceArea.x = 0;
    surfaceArea.y = STATUSBAR_HEIGHT;
    surfaceArea.width = SCREEN_WIDTH;
    surfaceArea.height = (SCREEN_HEIGHT - STATUSBAR_HEIGHT - CONTROLBAR_HEIGHT) / 2;

    surfaceAreas.append(surfaceArea);

    // bottom surface
    surfaceArea.x = 0;
    surfaceArea.y = SCREEN_HEIGHT / 2;
    surfaceArea.width = SCREEN_WIDTH;
    surfaceArea.height = (SCREEN_HEIGHT - STATUSBAR_HEIGHT - CONTROLBAR_HEIGHT) / 2;

    surfaceAreas.append(surfaceArea);

    mp_dBusWindowManagerProxy->addLayout(2, "top on bottom", surfaceAreas);


    surfaceAreas.clear();

    // layout 3:
    // two app surfaces (one besides the other), statusbar, control bar

    // left surface
    surfaceArea.x = 0;
    surfaceArea.y = STATUSBAR_HEIGHT;
    surfaceArea.width = SCREEN_WIDTH / 2;
    surfaceArea.height = SCREEN_HEIGHT - STATUSBAR_HEIGHT - CONTROLBAR_HEIGHT;

    surfaceAreas.append(surfaceArea);

    // right surface
    surfaceArea.x = SCREEN_WIDTH / 2;
    surfaceArea.y = STATUSBAR_HEIGHT;
    surfaceArea.width = SCREEN_WIDTH / 2;
    surfaceArea.height = SCREEN_HEIGHT - STATUSBAR_HEIGHT - CONTROLBAR_HEIGHT;

    surfaceAreas.append(surfaceArea);

    mp_dBusWindowManagerProxy->addLayout(3, "side by side", surfaceAreas);
}

void LayoutHandler::makeMeVisible(int pid)
{
    qDebug("makeMeVisible %d", pid);

    QList<int> allSurfaces = mp_dBusWindowManagerProxy->getAllSurfacesOfProcess(pid);
    qSort(allSurfaces);

    if (0 != allSurfaces.size())
    {
        m_requestsToBeVisibleSurfaces.append(allSurfaces.at(0));

        qDebug("m_visibleSurfaces %d", m_visibleSurfaces.size());
        qDebug("m_invisibleSurfaces %d", m_invisibleSurfaces.size());
        qDebug("m_requestsToBeVisibleSurfaces %d", m_requestsToBeVisibleSurfaces.size());

        QList<int> availableLayouts = mp_dBusWindowManagerProxy->getAvailableLayouts(m_visibleSurfaces.size() + m_requestsToBeVisibleSurfaces.size());
        if (0 == availableLayouts.size())
        {
            // no layout fits the need!
            // replace the last app
            qDebug("no layout fits the need!");
            qDebug("replace the last surface");

            m_invisibleSurfaces.append(m_visibleSurfaces.last());
            m_visibleSurfaces.removeLast();

            m_visibleSurfaces.append(m_requestsToBeVisibleSurfaces);
            m_requestsToBeVisibleSurfaces.clear();

            for (int i = 0; i < m_visibleSurfaces.size(); ++i)
            {
                mp_dBusWindowManagerProxy->setSurfaceToLayoutArea(m_visibleSurfaces.at(i), i);
            }
        }
        if (1 == availableLayouts.size())
        {
            // switch to new layout
            qDebug("switch to new layout %d", availableLayouts.at(0));
            m_visibleSurfaces.append(m_requestsToBeVisibleSurfaces);
            m_requestsToBeVisibleSurfaces.clear();

            mp_dBusWindowManagerProxy->setLayoutById(availableLayouts.at(0));
            for (int i = 0; i < m_visibleSurfaces.size(); ++i)
            {
                mp_dBusWindowManagerProxy->setSurfaceToLayoutArea(m_visibleSurfaces.at(i), i);
            }
        }
        if (1 < availableLayouts.size())
        {
            // more than one layout possible! Ask user.
            qDebug("more than one layout possible! Ask user.");

            QStringList choices;
            for (int i = 0; i < availableLayouts.size(); ++i)
            {
                choices.append(mp_dBusWindowManagerProxy->getLayoutName(availableLayouts.at(i)));
            }

            mp_dBusPopupProxy->showPopupComboBox("Select Layout", choices);
        }
    }
}

void LayoutHandler::requestRenderSurfaceToArea(int surfaceId, const QRect &renderArea)
{
    qDebug("requestRenderSurfaceToArea %d %d,%d,%d,%d", surfaceId, renderArea.x(), renderArea.y(), renderArea.width(), renderArea.height());
}

void LayoutHandler::requestSurfaceIdToFullScreen(int surfaceId)
{
    qDebug("requestSurfaceIdToFullScreen %d", surfaceId);
}

void LayoutHandler::setLayoutByName(QString layoutName)
{
    // switch to new layout
    qDebug("setLayout: switch to new layout %s", layoutName.toStdString().c_str());
    m_visibleSurfaces.append(m_requestsToBeVisibleSurfaces);
    m_requestsToBeVisibleSurfaces.clear();

    mp_dBusWindowManagerProxy->setLayoutByName(layoutName);
    for (int i = 0; i < m_visibleSurfaces.size(); ++i)
    {
        mp_dBusWindowManagerProxy->setSurfaceToLayoutArea(i, i);
    }
}