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sethLabels/glabels/NotebookUtil.cpp
T

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/* NotebookUtil.cpp
*
* Copyright (C) 2015 Jaye Evins <evins@snaught.com>
*
* This file is part of gLabels-qt.
*
* gLabels-qt 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, either version 3 of the License, or
* (at your option) any later version.
*
* gLabels-qt 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with gLabels-qt. If not, see <http://www.gnu.org/licenses/>.
*/
#include "NotebookUtil.h"
#include <QLayout>
namespace glabels
{
///
/// Establish notebook size based on largest page
///
void NotebookUtil::establishSize( QTabWidget* notebook )
{
// Establish size of notebook size based on its largest page.
// This may not be established until runtime, due to varying
// lengths of translated strings or may even be influenced by
// the current theme and fonts. Without doing this, the
// notebook may change size as tabs are selected for the first
// time, which can be very annoying.
// This hack shows the top-level window containing the notebook,
// then shows each page and invalidates the window's layout.
// Finally it re-hides the window without ever having
// relinquishing control to the Qt event loop.
QWidget* window = notebook->window();
int iTabSaved = notebook->currentIndex();
int nTabs = notebook->count();
window->show();
for ( int iTab = 0; iTab < nTabs; iTab++ )
{
notebook->setCurrentIndex( iTab );
window->layout()->invalidate();
}
window->hide();
notebook->setCurrentIndex( iTabSaved );
}
}