152 lines
5.1 KiB
C++
152 lines
5.1 KiB
C++
/*
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*
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* Copyright (C) 2023, KylinSoft Co., Ltd.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*
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*/
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#include "result-view-delegate.h"
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#include <QPainterPath>
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#include <QApplication>
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#include <QPen>
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#include <QStyleFactory>
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#include <QTreeView>
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#include "search-result-model.h"
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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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m_textDoc->setDefaultFont(QApplication::font());
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connect(qApp, &QApplication::fontChanged, m_textDoc, &QTextDocument::setDefaultFont);
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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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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 originalText = opt.text;
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opt.text = QString();
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QStyle *style = opt.widget->style();
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style->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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QString text = fontMetrics.elidedText(originalText, Qt::ElideRight, textRect.width() - m_textDoc->documentMargin() - 1); //富余5px的宽度
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//无需显示tooltip时，将状态位写回model
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auto view = qobject_cast<QTreeView *>(this->parent());
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if(text == originalText && originalText == index.data(Qt::ToolTipRole).toString()) {
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if(view) {
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view->model()->setData(index, false, AdditionalRoles::ShowToolTip);
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}
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} else {
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if(view) {
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view->model()->setData(index, true, AdditionalRoles::ShowToolTip);
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}
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}
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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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QVariant selectPen = opt.widget->property("textSelectPen");
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if(selectPen.isValid() && selectPen.canConvert<QPen>()) {
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m_hightLightEffectHelper->setTextColor(selectPen.value<QPen>().brush());
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} else {
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m_hightLightEffectHelper->setTextColor(QBrush(opt.palette.highlightedText().color()));
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}
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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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m_textDoc->setPlainText(text);
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m_hightLightEffectHelper->setDocument(m_textDoc);
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m_hightLightEffectHelper->rehighlight();
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painter->translate(textRect.x(), textRect.y() + (textRect.height() - fontMetrics.height()) / 2 - m_textDoc->documentMargin());
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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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ResultItemStyle::ResultItemStyle()
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{
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connect(qApp, &QApplication::paletteChanged, this, [&](){
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auto style = QStyleFactory::create("ukui");
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if(style) {
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setBaseStyle(style);
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Q_EMIT baseStyleChanged();
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}
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});
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}
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int ResultItemStyle::styleHint(QStyle::StyleHint hint, const QStyleOption *option, const QWidget *widget, QStyleHintReturn *returnData) const
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{
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switch (hint) {
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case SH_ItemView_ActivateItemOnSingleClick:
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return false;
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default:
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return qApp->style()->styleHint(hint, option, widget, returnData);
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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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