我创建了 CustomItemDelegateQStyledItemDelegate并使用该paint()方法更好地查看我的QListView.
如果我点击一个项目，option.state从来没有State_Selected，这是为什么呢？
我有一个选择模型，单行，选择矩形是可见的。
qDebug只打印出这些：
QStyle::State( "Active | Enabled" )
QStyle::State( "Active | Enabled | MouseOver" )
void SyrupItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
QRect rect = option.rect;
qDebug() << option.state;
if (option.state & QStyle::State_Selected)
{
painter->drawRoundedRect(option.rect,5,5);
painter->setPen(QPen(QPalette::HighlightedText ) );
if (option.state & QStyle::State_Active)
{
painter->setBrush(QBrush(QPalette().highlight()));
} else
{
//painter->setBrush(QBrush(QPalette().color(QPalette::Inactive,
//QPalette::Highlight)));
QLinearGradient gradient(0, 0, 0, 100);
gradient.setColorAt(0.0, QColor(0,0,230));
gradient.setColorAt(1.0, QColor(250,250,250));
painter->setBrush(gradient);
}
} else
painter->setPen(QPen(QPalette::Text));
if ( !index.isValid() )
return;
int row = index.row();
// painter->save();
// painter->setRenderHint(QPainter::Antialiasing,true);
QString res = index.sibling(row,SyrupsSQLModel::SYRUP_NM_COL_INDEX).data().toString();
QRectF rc(rect);
rc.setTop(rc.top()+ PADDING);
rc.setLeft(rc.left()+ 2* PADDING + IMG_WIDTH);
QFont font = option.font;
font.setPointSize(font.pointSize()+4);
painter->setFont(font);
painter->drawText(rc,res);
res = index.sibling(row,SyrupsSQLModel::SYRUP_GRP_COL_INDEX).data().toString().toLower();
rc.setTop(rect.top()+PADDING );
rc.setLeft(rect.left()+PADDING );
painter->drawPixmap(rc.topLeft(),QIcon(":/prodgrp/"+res).pixmap(QSize(IMG_WIDTH,IMG_HEIGHT)));
//SyrupsSQLModel::FORMULA_COL_INDEX:
//SyrupsSQLModel::SYRUP_ID_COL_INDEX:
//Painter->restore();
}
我正在使用 Qt 5.0.2 32bit (Win)。