#include "result-view-delegate.h" #include using namespace UkuiSearch; static ResultItemStyle *global_instance_of_item_style = nullptr; ResultViewDelegate::ResultViewDelegate(QObject *parent) : QStyledItemDelegate(parent), m_textDoc(new QTextDocument(this)), m_hightLightEffectHelper(new HightLightEffectHelper(this)) { m_textDoc->setDefaultFont(QApplication::font()); connect(qApp, &QApplication::fontChanged, m_textDoc, &QTextDocument::setDefaultFont); } void ResultViewDelegate::setSearchKeyword(const QString ®FindKeyWords) { m_hightLightEffectHelper->setExpression(regFindKeyWords); } QSize ResultViewDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const { QSize size = QStyledItemDelegate::sizeHint(option,index); size.setHeight(size.height() + 10); return size; } void ResultViewDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { QStyleOptionViewItem opt = option; initStyleOption(&opt, index); opt.displayAlignment = Qt::Alignment(Qt::AlignLeft|Qt::AlignVCenter); QString text = opt.text; opt.text = QString(); QStyle *style = opt.widget->style(); style->proxy()->drawControl(QStyle::CE_ItemViewItem, &opt, painter, opt.widget); //绘制非文本区域内容 QRect textRect = style->subElementRect(QStyle::SE_ItemViewItemText, &opt, opt.widget); QFontMetrics fontMetrics(opt.font); text = fontMetrics.elidedText(text, Qt::ElideRight, textRect.width() - m_textDoc->documentMargin() - 1); //富余5px的宽度 opt.text = text; painter->save(); if(opt.state & QStyle::State_Selected) { m_hightLightEffectHelper->setTextColor(QBrush(opt.palette.highlightedText().color())); } else { m_hightLightEffectHelper->setTextColor(QBrush(opt.palette.text().color())); } m_textDoc->setPlainText(text); m_hightLightEffectHelper->setDocument(m_textDoc); m_hightLightEffectHelper->rehighlight(); painter->translate(textRect.x(), textRect.y() + (textRect.height() - fontMetrics.height()) / 2 - m_textDoc->documentMargin()); m_textDoc->drawContents(painter); painter->restore(); } ResultItemStyle *ResultItemStyle::getStyle() { if (!global_instance_of_item_style) { global_instance_of_item_style = new ResultItemStyle; } return global_instance_of_item_style; } int ResultItemStyle::styleHint(QStyle::StyleHint hint, const QStyleOption *option, const QWidget *widget, QStyleHintReturn *returnData) const { switch (hint) { case SH_ItemView_ActivateItemOnSingleClick: return false; default: return qApp->style()->styleHint(hint, option, widget, returnData); } } //void ResultItemStyle::drawPrimitive(QStyle::PrimitiveElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const //{ // switch (element) { // case PE_PanelItemViewItem: { // bool isIconView = false; // auto opt = qstyleoption_cast(option); // if (!opt) // return; // if (opt) { // isIconView = (opt->decorationPosition & QStyleOptionViewItem::Top); // } // bool isHover = (option->state & State_MouseOver) && (option->state & ~State_Selected); // bool isSelected = option->state & State_Selected; // bool enable = option->state & State_Enabled; // QColor color = option->palette.color(enable? QPalette::Active: QPalette::Disabled, QPalette::Highlight); // if (isSelected) { // color.setAlpha(255); // } else if (isHover) { // // color = opt->palette.color(QPalette::Active, QPalette::BrightText); // // color.setAlpha(0.05); // color = QColor(241, 241, 241); // } else { // color.setAlpha(0); // } // QPainterPath path; // if(opt->viewItemPosition == QStyleOptionViewItem::OnlyOne) { // path.addRoundedRect(option->rect, 6, 6); // } else if(opt->viewItemPosition == QStyleOptionViewItem::Beginning) { // //一个左侧有两个圆角的矩形 // path.moveTo(option->rect.topLeft() + QPoint(6, 0)); // path.cubicTo(option->rect.topLeft() + QPoint(6, 0), // option->rect.topLeft(), option->rect.topLeft() + // QPoint(0, 6)); // path.lineTo(option->rect.bottomLeft() - QPoint(0, 6)); // path.cubicTo(option->rect.bottomLeft() - QPoint(0, 6), // option->rect.bottomLeft() + QPoint(0, 1), // option->rect.bottomLeft() + QPoint(6, 1)); // path.lineTo(option->rect.bottomRight() + QPoint(1, 1)); // path.lineTo(option->rect.topRight()+ QPoint(1, 0)); // path.lineTo(option->rect.topLeft() + QPoint(6, 0)); // } else if(opt->viewItemPosition == QStyleOptionViewItem::Middle) { // path.addRect(option->rect.adjusted(-1, 0, 1, 0)); // } else if(opt->viewItemPosition == QStyleOptionViewItem::End) { // //一个右侧有两个圆角的矩形 // path.moveTo(option->rect.topRight() + QPoint(-6, 0)); // path.cubicTo(option->rect.topRight() + QPoint(-6, 0), // option->rect.topRight(), // option->rect.topRight() + // QPoint(0, 6)); // path.lineTo(option->rect.bottomRight() - QPoint(0, 6)); // path.cubicTo(option->rect.bottomRight() - QPoint(0, 6), // option->rect.bottomRight() + QPoint(0, 1), // option->rect.bottomRight() + QPoint(-6, 1)); // path.lineTo(option->rect.bottomLeft() + QPoint(0, 1)); // path.lineTo(option->rect.topLeft()); // path.lineTo(option->rect.topRight() + QPoint(-6, 0)); // } else { // // path.addRoundedRect(option->rect, 8, 8); // } // painter->save(); // painter->setRenderHint(QPainter::Antialiasing); // painter->setPen(Qt::NoPen); // painter->setBrush(color); // painter->drawPath(path); // // painter->fillPath(path, painter->brush()); // painter->restore(); // break; // } // default: // break; //// return QProxyStyle::drawPrimitive(element, option, painter, widget); // } //} //void ResultItemStyle::drawControl(QStyle::ControlElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const //{ // switch (element) { // case CE_ItemViewItem: { // if (const QStyleOptionViewItem *vopt = qstyleoption_cast(option)) { // painter->save(); // if (painter->clipPath().isEmpty()) { // painter->setClipRect(option->rect); // } // QRect checkRect = proxy()->subElementRect(SE_ItemViewItemCheckIndicator, vopt, widget); // QRect iconRect = proxy()->subElementRect(SE_ItemViewItemDecoration, vopt, widget); // // draw the background // proxy()->drawPrimitive(PE_PanelItemViewItem, option, painter, widget); // // draw the check mark // if (vopt->features & QStyleOptionViewItem::HasCheckIndicator) { // QStyleOptionViewItem option(*vopt); // option.rect = checkRect; // option.state = option.state & ~QStyle::State_HasFocus; // switch (vopt->checkState) { // case Qt::Unchecked: // option.state |= QStyle::State_Off; // break; // case Qt::PartiallyChecked: // option.state |= QStyle::State_NoChange; // break; // case Qt::Checked: // option.state |= QStyle::State_On; // break; // default: // break; // } // proxy()->drawPrimitive(QStyle::PE_IndicatorViewItemCheck, &option, painter, widget); // } // // draw the icon // QIcon::Mode mode = QIcon::Normal; // if (!(vopt->state & QStyle::State_Enabled)) { // mode = QIcon::Disabled; // } else if (vopt->state & QStyle::State_Selected) { // mode = QIcon::Selected; // } // QIcon::State state = vopt->state & QStyle::State_Open ? QIcon::On : QIcon::Off; // auto pixmap = vopt->icon.pixmap(vopt->decorationSize, mode, state); // iconRect.moveLeft(8); // QStyle::drawItemPixmap(painter, iconRect, vopt->decorationAlignment, pixmap); // painter->restore(); // return; // } // break; // } // default: // break; // } //} HightLightEffectHelper::HightLightEffectHelper(QObject *parent) : QSyntaxHighlighter(parent) { m_expression.setCaseSensitivity(Qt::CaseInsensitive); m_expression.setPatternSyntax(QRegExp::FixedString); } void HightLightEffectHelper::setExpression(const QString &text) { m_expression.setPattern(text); } void HightLightEffectHelper::setTextColor(const QBrush &brush) { m_textCharFormat.setForeground(brush); } void HightLightEffectHelper::highlightBlock(const QString &text) { setFormat(0, text.length(), m_textCharFormat); m_textCharFormat.setFontWeight(QFont::Bold); int index = text.indexOf(m_expression); while(index >= 0){ int length = m_expression.matchedLength(); setFormat(index, length, m_textCharFormat); index = text.indexOf(m_expression, index+length); } m_textCharFormat.setFontWeight(QFont::Normal); }