qtextoption.cpp

Go to the documentation of this file.

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qtextoption.h"
#include "qguiapplication.h"
#include "qlist.h"
 
QT_BEGIN_NAMESPACE
 
QT_IMPL_METATYPE_EXTERN_TAGGED(QTextOption::Tab, QTextOption_Tab)
 
struct QTextOptionPrivate
{
    QList<QTextOption::Tab> tabStops;
};
 
QTextOption::QTextOption()
    : QTextOption(Qt::AlignLeft)
{
    direction = Qt::LayoutDirectionAuto;
}
 
QTextOption::QTextOption(Qt::Alignment alignment)
    : align(alignment),
      wordWrap(QTextOption::WordWrap),
      design(false),
      unused(0),
      f(0),
      tab(-1),
      d(nullptr)
{
    direction = QGuiApplication::layoutDirection();
}
 
QTextOption::~QTextOption()
{
    delete d;
}
 
QTextOption::QTextOption(const QTextOption &o)
    : align(o.align),
      wordWrap(o.wordWrap),
      design(o.design),
      direction(o.direction),
      unused(o.unused),
      f(o.f),
      tab(o.tab),
      d(nullptr)
{
    if (o.d)
        d = new QTextOptionPrivate(*o.d);
}
 
QTextOption &QTextOption::operator=(const QTextOption &o)
{
    if (this == &o)
        return *this;
 
    QTextOptionPrivate* dNew = nullptr;
    if (o.d)
        dNew = new QTextOptionPrivate(*o.d);
    delete d;
    d = dNew;
 
    align = o.align;
    wordWrap = o.wordWrap;
    design = o.design;
    direction = o.direction;
    unused = o.unused;
    f = o.f;
    tab = o.tab;
    return *this;
}
 
void QTextOption::setTabArray(const QList<qreal> &tabStops)
{
    if (!d)
        d = new QTextOptionPrivate;
    QList<QTextOption::Tab> tabs;
    QTextOption::Tab tab;
    tabs.reserve(tabStops.size());
    for (qreal pos : tabStops) {
        tab.position = pos;
        tabs.append(tab);
    }
    d->tabStops = tabs;
}
 
void QTextOption::setTabs(const QList<QTextOption::Tab> &tabStops)
{
    if (!d)
        d = new QTextOptionPrivate;
    d->tabStops = tabStops;
}
 
QList<qreal> QTextOption::tabArray() const
{
    QList<qreal> answer;
    if (!d)
        return answer;
 
    answer.reserve(d->tabStops.size());
    QList<QTextOption::Tab>::ConstIterator iter = d->tabStops.constBegin();
    while(iter != d->tabStops.constEnd()) {
        answer.append( (*iter).position);
        ++iter;
    }
    return answer;
}
 
 
QList<QTextOption::Tab> QTextOption::tabs() const
{
    if (!d)
        return QList<QTextOption::Tab>();
    return d->tabStops;
}
 
QT_END_NAMESPACE