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sdrangel/sdrgui/gui/mdiutils.cpp

89 lines
3.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2023 Jon Beniston, M7RCE <jon@beniston.com> //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <QWidget>
#include <QDebug>
#include <QDataStream>
#include <QIODevice>
#include "mdiutils.h"
// QWidget::save/restoreGeometry doesn't work properly for MDI sub-windows
// so we have this code
QByteArray MDIUtils::saveMDIGeometry(QWidget *widget)
{
QByteArray array;
QDataStream stream(&array, QIODevice::WriteOnly);
quint16 version = 1;
stream << version
<< widget->x()
<< widget->y()
<< widget->width()
<< widget->height()
<< widget->isMaximized()
<< widget->isFullScreen();
return array;
}
bool MDIUtils::restoreMDIGeometry(QWidget *widget, const QByteArray& geometry)
{
if (geometry.size() == 66)
{
// Older versions of SDRangel used save/restoreGeometry
return widget->restoreGeometry(geometry);
}
else if (geometry.size() < 4)
{
qDebug() << "MDIUtils::restoreMDIGeometry: geometry is invalid";
return false;
}
else
{
QDataStream stream(geometry);
quint16 version = 0;
stream >> version;
if (version != 1)
{
qDebug() << "MDIUtils::restoreMDIGeometry: Unsupported version" << version;
return false;
}
// Restore window position
qint32 x, y, width, height;
stream >> x >> y >> width >> height;
widget->move(x, y);
widget->resize(width, height);
// Restore window state
// After restoring the geometry for a number of MDI windows, if one was maximized
// but not the last to have geometry restored for, we end up with the wrong
// window being maximized, so we don't bother trying for now
bool maximized, fullscreen;
stream >> maximized >> fullscreen;
/*if (fullscreen) {
widget->showFullScreen();
} else if (maximized) {
widget->showMaximized();
} else {
widget->showNormal();
}*/
return true;
}
}