qt5base-lts/examples/widgets/graphicsview/embeddeddialogs/embeddeddialog.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "embeddeddialog.h"
#include "ui_embeddeddialog.h"
#include <QStyleFactory>
EmbeddedDialog::EmbeddedDialog(QWidget *parent)
: QDialog(parent)
, ui(new Ui::EmbeddedDialog)
{
ui->setupUi(this);
ui->layoutDirection->setCurrentIndex(layoutDirection() != Qt::LeftToRight);
const QStringList styleKeys = QStyleFactory::keys();
for (const QString &styleName : styleKeys) {
ui->style->addItem(styleName);
if (style()->objectName().toLower() == styleName.toLower())
ui->style->setCurrentIndex(ui->style->count() - 1);
}
connect(ui->layoutDirection, &QComboBox::activated,
this, &EmbeddedDialog::layoutDirectionChanged);
connect(ui->spacing, &QSlider::valueChanged,
this, &EmbeddedDialog::spacingChanged);
connect(ui->fontComboBox, &QFontComboBox::currentFontChanged,
this, &EmbeddedDialog::fontChanged);
connect(ui->style, &QComboBox::textActivated,
this, &EmbeddedDialog::styleChanged);
}
EmbeddedDialog::~EmbeddedDialog()
{
delete ui;
}
void EmbeddedDialog::layoutDirectionChanged(int index)
{
setLayoutDirection(index == 0 ? Qt::LeftToRight : Qt::RightToLeft);
}
void EmbeddedDialog::spacingChanged(int spacing)
{
layout()->setSpacing(spacing);
adjustSize();
}
void EmbeddedDialog::fontChanged(const QFont &font)
{
setFont(font);
}
static void setStyleHelper(QWidget *widget, QStyle *style)
{
widget->setStyle(style);
widget->setPalette(style->standardPalette());
const QObjectList children = widget->children();
for (QObject *child : children) {
if (QWidget *childWidget = qobject_cast<QWidget *>(child))
setStyleHelper(childWidget, style);
}
}
void EmbeddedDialog::styleChanged(const QString &styleName)
{
QStyle *style = QStyleFactory::create(styleName);
if (style)
setStyleHelper(this, style);
}