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