270 lines
11 KiB
C++
270 lines
11 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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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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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() - m_textDoc->documentMargin() - 1); //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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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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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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//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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