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125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
// SPDX-FileCopyrightText: 2018 - 2023 UnionTech Software Technology Co., Ltd.
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//
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// SPDX-License-Identifier: LGPL-3.0-or-later
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#include "tipswidget.h"
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#include <QPainter>
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#include <QAccessible>
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#include <QTextDocument>
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#include <QGuiApplication>
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namespace Dock{
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TipsWidget::TipsWidget(QWidget *parent)
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: QFrame(parent)
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, m_type(SingleLine)
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{
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connect(qApp, &QGuiApplication::fontChanged, this, [=] {
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setFont(qApp->font());
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});
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setFont(qApp->font());
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}
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void TipsWidget::setText(const QString &text)
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{
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m_type = TipsWidget::SingleLine;
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// 如果传递的是富文本，获取富文本中的纯文本内容进行显示
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QTextDocument document;
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document.setHtml(text);
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// 同时去掉两边的空白信息，例如qBittorrent的提示
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m_text = document.toPlainText().simplified();
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#if 0 //测试时可以使用下面的语句
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// FIXME:藏语字体绘制会有异常，设置高度时需要使用fontMetrics().boundingRect()去获取整体的边界矩形的高度，
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// 使用fontMetrics().height()去获取时，针对藏语这种字体，其高度和实际显示区域并不等同
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m_text = "བོད་སྐད་ཡིག་གཟུགས་ཚད་ལེན་ཚོད་ལྟའི་སྐོར་གྱི་རྗོད་ཚིག";
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#endif
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setFixedSize(fontMetrics().horizontalAdvance(m_text) + 20, fontMetrics().boundingRect(m_text).height());
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update();
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#ifndef QT_NO_ACCESSIBILITY
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if (accessibleName().isEmpty()) {
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QAccessibleEvent event(this, QAccessible::NameChanged);
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QAccessible::updateAccessibility(&event);
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}
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#endif
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}
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void TipsWidget::setTextList(const QStringList &textList)
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{
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if (textList.size() == 1) {
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setText(textList.first());
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} else {
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int width = 0;
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int height = 0;
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m_type = TipsWidget::MultiLine;
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m_textList = textList;
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for (QString &text : m_textList) {
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width = qMax(width, fontMetrics().horizontalAdvance(text) + 20);
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height += fontMetrics().boundingRect(text).height();
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}
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setFixedSize(width + 10, height);
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update();
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}
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}
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/**
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* @brief TipsWidget::paintEvent 任务栏插件提示信息绘制
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* @param event
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*/
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void TipsWidget::paintEvent(QPaintEvent *event)
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{
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QFrame::paintEvent(event);
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QPainter painter(this);
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painter.setPen(QPen(palette().brightText(), 1));
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QTextOption option;
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option.setAlignment(Qt::AlignCenter);
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switch (m_type) {
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case SingleLine: {
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painter.drawText(rect(), m_text, option);
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}
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break;
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case MultiLine: {
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int y = 0;
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if (m_textList.size() != 1)
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option.setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
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for (QString text : m_textList) {
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int lineHeight = fontMetrics().boundingRect(text).height();
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painter.drawText(QRect(10, y, rect().width(), lineHeight), text, option);
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y += lineHeight;
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}
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}
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break;
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}
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}
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bool TipsWidget::event(QEvent *event)
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{
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if (event->type() == QEvent::FontChange) {
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switch (m_type) {
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case SingleLine:
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{
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setText(m_text);
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break;
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}
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case MultiLine:
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{
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setTextList(m_textList);
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break;
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}
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}
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}
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return QFrame::event(event);
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}
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}
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