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#include "statusmonitorwidget.h"
#include "statusmonitor.h"
#include <qmailserviceaction.h>
#include <QLayout>
#include <QScrollArea>
#include <QResizeEvent>

StatusMonitorWidget::StatusMonitorWidget(QWidget* parent, uint bottomMargin, uint rightMargin)
:
QFrame(parent),
m_layout(0),
m_bottomMargin(bottomMargin),
m_rightMargin(rightMargin)
{
    init();
    if (parent)
        parent->installEventFilter(this);
    connect(StatusMonitor::instance(),SIGNAL(added(StatusItem*)),this,
            SLOT(statusAdded(StatusItem*)));
    connect(StatusMonitor::instance(),SIGNAL(removed(StatusItem*)),this,
            SLOT(statusRemoved(StatusItem*)));
}

QSize StatusMonitorWidget::sizeHint() const
{
    int totalWidth = 0;
    int totalHeight = 0;
    foreach(QWidget* asw, m_statusWidgets)
    {
        totalHeight += asw->sizeHint().height();
        totalWidth = asw->sizeHint().width();
    }
    return QSize(totalWidth,totalHeight);
}

bool StatusMonitorWidget::eventFilter(QObject* source, QEvent* event)
{
    if (source == parent() && isVisible() && event->type() == QEvent::Resize)
        repositionToParent();
    return QWidget::eventFilter(source,event);
}

void StatusMonitorWidget::resizeEvent(QResizeEvent*)
{
    repositionToParent();
}

void StatusMonitorWidget::statusAdded(StatusItem* s)
{
    QWidget* statusWidget = s->widget();
    m_statusWidgets.insert(s,statusWidget);
    m_layout->addWidget(statusWidget);
    adjustSize();
}

void StatusMonitorWidget::statusRemoved(StatusItem* s)
{
    if (QWidget* w = m_statusWidgets.value(s))
    {
        m_statusWidgets.remove(s);
        w->deleteLater();
    }
    adjustSize();
}

void StatusMonitorWidget::init()
{
    setAutoFillBackground(true);
    setFrameStyle(QFrame::Sunken | QFrame::Panel);

    m_layout = new QVBoxLayout(this);
    m_layout->setSpacing(0);
    m_layout->setContentsMargins(0,0,0,0);
}

void StatusMonitorWidget::repositionToParent()
{
    QWidget* parentWidget = qobject_cast<QWidget*>(parent());
    if (!parentWidget)
        return;
    int x = parentWidget->width() - m_rightMargin - width();
    int y = parentWidget->height() - m_bottomMargin - height();
    move(x,y);
}