#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)) { } 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() - 5); //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())); } painter->translate(textRect.topLeft()); m_textDoc->setPlainText(text); m_hightLightEffectHelper->setDocument(m_textDoc); m_hightLightEffectHelper->rehighlight(); 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; } 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); }