mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-23 20:10:48 +08:00
71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
// Copyright (C) 2022 The Qt Company Ltd.
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
|
|
|
|
#include "view.h"
|
|
#include <QTextLayout>
|
|
#include <QPainter>
|
|
|
|
View::View(QWidget *parent)
|
|
: QWidget{parent}
|
|
{
|
|
setSizePolicy(QSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Maximum));
|
|
}
|
|
|
|
View::~View()
|
|
{
|
|
delete m_layout;
|
|
}
|
|
|
|
void View::updateLayout(const QString &sourceString,
|
|
float width,
|
|
QTextOption::WrapMode mode,
|
|
const QFont &font)
|
|
{
|
|
if (m_layout == nullptr)
|
|
m_layout = new QTextLayout;
|
|
|
|
m_layout->setText(sourceString);
|
|
QTextOption option;
|
|
option.setWrapMode(mode);
|
|
m_layout->setTextOption(option);
|
|
m_layout->setFont(font);
|
|
m_layout->beginLayout();
|
|
float y = 0.0f;
|
|
forever {
|
|
QTextLine line = m_layout->createLine();
|
|
if (!line.isValid())
|
|
break;
|
|
|
|
line.setLineWidth(width);
|
|
line.setPosition(QPointF(0, y));
|
|
y += line.height();
|
|
}
|
|
m_layout->endLayout();
|
|
|
|
update();
|
|
updateGeometry();
|
|
}
|
|
|
|
QSize View::sizeHint() const
|
|
{
|
|
if (m_layout != nullptr)
|
|
return m_layout->boundingRect().size().toSize();
|
|
else
|
|
return QSize(100, 100);
|
|
}
|
|
|
|
void View::paintEvent(QPaintEvent *)
|
|
{
|
|
QPainter p(this);
|
|
if (m_layout != nullptr)
|
|
m_layout->draw(&p, QPointF(0, 0));
|
|
if (!m_bounds.isEmpty()) {
|
|
p.setPen(Qt::NoPen);
|
|
p.setBrush(Qt::yellow);
|
|
p.setOpacity(0.25);
|
|
for (const QRect &r : m_bounds) {
|
|
p.drawRect(r);
|
|
}
|
|
}
|
|
}
|