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MyTableWidgetDelegate.cpp
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MyTableWidgetDelegate.cpp
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#include "MyTableWidgetDelegate.h"
#include <QPainter>
#include <QTableWidget>
#include <QApplication>
MyTableWidgetDelegate::MyTableWidgetDelegate(QObject *parent)
: QStyledItemDelegate(parent)
{
}
namespace {
void drawFocusFrame(QPainter *p, QRect const &rect, int margin)
{
p->save();
p->setRenderHint(QPainter::Antialiasing);
QColor color(80, 160, 255);
p->setPen(color);
p->setBrush(Qt::NoBrush);
double m = margin + 0.5;
p->drawRoundedRect(((QRectF)rect).adjusted(m, m, -m, -m), 3, 3);
p->restore();
}
}
void MyTableWidgetDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, QModelIndex const &index) const
{
QStyleOptionViewItem opt = option;
#ifdef Q_OS_WIN
// 選択枠を描画
if (option.showDecorationSelected) {
QTableWidget const *tablewidget = qobject_cast<QTableWidget const *>(option.widget);
Q_ASSERT(tablewidget);
int w = tablewidget->viewport()->rect().width();
painter->save();
QStyleOptionViewItem o = option;
painter->setClipRect(o.rect);
o.rect = QRect(1, o.rect.y(), w - 2, o.rect.height());
QWidget *wid = tablewidget->viewport(); // ダークスタイル時、PE_PanelItemViewItem で選択枠を描画させないため、QTableWidget*ではなくviewportを渡す。
qApp->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &o, painter, wid);
painter->restore();
#if 0
// フォーカス枠
if ((opt.state & QStyle::State_Selected) && tablewidget->hasFocus()) {
if (tablewidget->selectionMode() == QAbstractItemView::SingleSelection && tablewidget->selectionBehavior() == QAbstractItemView::SelectRows) {
if (auto const *viewport = tablewidget->viewport()) {
if (auto const *o = qstyleoption_cast<QStyleOptionViewItem const *>(&option)) {
QRect r(0, option.rect.y(), viewport->width(), option.rect.height());
if (o->index.column() == tablewidget->model()->columnCount() - 1) {
r.setWidth(o->rect.x() + o->rect.width());
}
painter->save();
painter->setClipRect(o->rect);
drawFocusFrame(painter, r, 0);
painter->restore();
}
}
}
}
#endif
}
opt.state &= ~QStyle::State_Selected; // 行の選択枠は描画しない
#endif
opt.state &= ~QStyle::State_HasFocus; // セルのフォーカス枠は描画しない
QStyledItemDelegate::paint(painter, opt, index); // デフォルトの描画
}

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