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ThirdParty-6/ParaView-5.0.1/Plugins/SierraPlotTools/pqResizingScrollArea.cxx

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2.1 KiB
C++

// -*- c++ -*-
/*=========================================================================
Program: Visualization Toolkit
Module: pqResizingScrollArea.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2009 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#include "warningState.h"
#include "pqResizingScrollArea.h"
#include <QApplication>
#include <QDesktopWidget>
pqResizingScrollArea::pqResizingScrollArea(QWidget *_parent)
:QScrollArea(_parent)
{
setWidgetResizable(true);
setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
}
QSize pqResizingScrollArea::sizeHint() const
{
//return QScrollArea::sizeHint();
QWidget *currentWidget = widget();
if (!currentWidget)
{
return QScrollArea::sizeHint();
}
QSize newSize;
newSize.setWidth(QScrollArea::sizeHint().width());
// retrieve the scrollarea margins
int leftMargin, topMargin, rightMargin, bottomMargin;
getContentsMargins(&leftMargin, &topMargin, &rightMargin, &bottomMargin );
int widgetHintHeight = currentWidget->sizeHint().height() + topMargin + bottomMargin;
int scrollHintHeight = QScrollArea::sizeHint().height();
newSize.setHeight(qMax(widgetHintHeight, scrollHintHeight));
int deskTopHeight = QApplication::desktop()->availableGeometry().height();
// but don't get too big relative to the deskTopHeight
newSize.setHeight(qMin(newSize.height(), int(deskTopHeight * 0.4)));
return newSize;
}