void SidebarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
QBrush backBrush;
QColor foreColor;
bool disabled = false;
bool hover = false;
if (!(option.state & QStyle::State_Enabled)) {
backBrush = option.palette.brush(QPalette::Disabled, QPalette::Base);
foreColor = option.palette.color(QPalette::Disabled, QPalette::Text);
disabled = true;
} else if (option.state & (QStyle::State_HasFocus | QStyle::State_Selected)) {
backBrush = option.palette.brush(QPalette::Highlight);
foreColor = option.palette.color(QPalette::HighlightedText);
} else if (option.state & QStyle::State_MouseOver) {
backBrush = option.palette.color(QPalette::Highlight).light(115);
foreColor = option.palette.color(QPalette::HighlightedText);
hover = true;
} else { /*if ( option.state & QStyle::State_Enabled )*/
backBrush = option.palette.brush(QPalette::Base);
foreColor = option.palette.color(QPalette::Text);
}
QStyle *style = QApplication::style();
QStyleOptionViewItemV4 opt(option);
// KStyle provides an "hover highlight" effect for free;
// but we want that for non-KStyle-based styles too
if (!style->inherits("KStyle") && hover) {
Qt::BrushStyle bs = opt.backgroundBrush.style();
if (bs > Qt::NoBrush && bs < Qt::TexturePattern)
opt.backgroundBrush = opt.backgroundBrush.color().light(115);
else
opt.backgroundBrush = backBrush;
}
painter->save();
style->drawPrimitive(QStyle::PE_PanelItemViewItem, &opt, painter, 0);
painter->restore();
QIcon icon = index.data(Qt::DecorationRole).value< QIcon >();
if (!icon.isNull()) {
QPoint iconpos(
(option.rect.width() - option.decorationSize.width()) / 2,
ITEM_MARGIN_TOP
);
iconpos += option.rect.topLeft();
QIcon::Mode iconmode = disabled ? QIcon::Disabled : QIcon::Normal;
painter->drawPixmap(iconpos, icon.pixmap(option.decorationSize, iconmode));
}
if (m_showText) {
QString text = index.data(Qt::DisplayRole).toString();
QRect fontBoundaries = QFontMetrics(option.font).boundingRect(text);
fontBoundaries.setWidth(fontBoundaries.width() + ITEM_PADDING);
QPoint textPos(
ITEM_MARGIN_LEFT + (option.rect.width() - ITEM_MARGIN_LEFT - ITEM_MARGIN_RIGHT - fontBoundaries.width()) / 2,
ITEM_MARGIN_TOP + option.decorationSize.height() + ITEM_PADDING
);
fontBoundaries.translate(-fontBoundaries.topLeft());
fontBoundaries.translate(textPos);
fontBoundaries.translate(option.rect.topLeft());
painter->setPen(foreColor);
painter->drawText(fontBoundaries, Qt::AlignCenter, text);
}
}
