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

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
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**
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** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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** $QT_END_LICENSE$
**
****************************************************************************/
#include "embeddeddialog.h"
#include "ui_embeddeddialog.h"
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#include <QtWidgets>
EmbeddedDialog::EmbeddedDialog(QWidget *parent)
: QDialog(parent)
{
ui = new Ui_embeddedDialog;
ui->setupUi(this);
ui->layoutDirection->setCurrentIndex(layoutDirection() != Qt::LeftToRight);
foreach (QString styleName, QStyleFactory::keys()) {
ui->style->addItem(styleName);
if (style()->objectName().toLower() == styleName.toLower())
ui->style->setCurrentIndex(ui->style->count() - 1);
}
connect(ui->layoutDirection, SIGNAL(activated(int)),
this, SLOT(layoutDirectionChanged(int)));
connect(ui->spacing, SIGNAL(valueChanged(int)),
this, SLOT(spacingChanged(int)));
connect(ui->fontComboBox, SIGNAL(currentFontChanged(QFont)),
this, SLOT(fontChanged(QFont)));
connect(ui->style, SIGNAL(activated(QString)),
this, SLOT(styleChanged(QString)));
}
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());
foreach (QObject *child, widget->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);
}