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

#include "sheet_delegate_p.h"

#include <QtCore/QAbstractItemModel>

#include <QtGui/QTreeView>

#include <QtGui/QStyle>

#include <QtGui/QPainter>

QT_BEGIN_NAMESPACE

namespace qdesigner_internal {

SheetDelegate::SheetDelegate(QTreeView *view, QWidget *parent)

    : QItemDelegate(parent),

      m_view(view)

{

}

void SheetDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const

{

    const QAbstractItemModel *model = index.model();

    Q_ASSERT(model);

    if (!model->parent(index).isValid()) {

        // this is a top-level item.

        QStyleOptionButton buttonOption;

        buttonOption.state = option.state;

#ifdef Q_WS_MAC

        buttonOption.state |= QStyle::State_Raised;

#endif

        buttonOption.state &= ~QStyle::State_HasFocus;

        buttonOption.rect = option.rect;

        buttonOption.palette = option.palette;

        buttonOption.features = QStyleOptionButton::None;

        m_view->style()->drawControl(QStyle::CE_PushButton, &buttonOption, painter, m_view);

        QStyleOption branchOption;

        static const int i = 9; // ### hardcoded in qcommonstyle.cpp

        QRect r = option.rect;

        branchOption.rect = QRect(r.left() + i/2, r.top() + (r.height() - i)/2, i, i);

        branchOption.palette = option.palette;

        branchOption.state = QStyle::State_Children;

        if (m_view->isExpanded(index))

            branchOption.state |= QStyle::State_Open;

        m_view->style()->drawPrimitive(QStyle::PE_IndicatorBranch, &branchOption, painter, m_view);

        // draw text

        QRect textrect = QRect(r.left() + i*2, r.top(), r.width() - ((5*i)/2), r.height());

        QString text = elidedText(option.fontMetrics, textrect.width(), Qt::ElideMiddle, 

            model->data(index, Qt::DisplayRole).toString());

        m_view->style()->drawItemText(painter, textrect, Qt::AlignCenter,

            option.palette, m_view->isEnabled(), text);

    } else {

        QItemDelegate::paint(painter, option, index);

    }

}

QSize SheetDelegate::sizeHint(const QStyleOptionViewItem &opt, const QModelIndex &index) const

{

    QStyleOptionViewItem option = opt;

    QSize sz = QItemDelegate::sizeHint(opt, index) + QSize(2, 2);

    return sz;

}

} // namespace qdesigner_internal

QT_END_NAMESPACE