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//##########################################################################
//# #
//# CLOUDCOMPARE #
//# #
//# 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; version 2 or later of the License. #
//# #
//# 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 for more details. #
//# #
//# COPYRIGHT: EDF R&D / TELECOM ParisTech (ENST-TSI) #
//# #
//##########################################################################
#include "ccOverlayDialog.h"
//qCC_glWindow
#include <ccGLWindow.h>
//qCC_db
#include <ccLog.h>
//Qt
#include <QApplication>
#include <QEvent>
#include <QKeyEvent>
//system
#include <cassert>
ccOverlayDialog::ccOverlayDialog(QWidget* parent/*=0*/, Qt::WindowFlags flags/*=Qt::FramelessWindowHint | Qt::Tool*/)
: QDialog(parent, flags)
, m_associatedWin(nullptr)
, m_processing(false)
{
}
ccOverlayDialog::~ccOverlayDialog()
{
onLinkedWindowDeletion();
}
bool ccOverlayDialog::linkWith(ccGLWindow* win)
{
if (m_processing)
{
ccLog::Warning("[ccOverlayDialog] Can't change associated window while running/displayed!");
return false;
}
//same dialog? nothing to do
if (m_associatedWin == win)
{
return true;
}
if (m_associatedWin)
{
//we automatically detach the former dialog
{
QWidgetList topWidgets = QApplication::topLevelWidgets();
foreach(QWidget* widget, topWidgets)
{
widget->removeEventFilter(this);
}
}
m_associatedWin->disconnect(this);
m_associatedWin = nullptr;
}
m_associatedWin = win;
if (m_associatedWin)
{
QWidgetList topWidgets = QApplication::topLevelWidgets();
foreach(QWidget* widget, topWidgets)
{
widget->installEventFilter(this);
}
connect(m_associatedWin, &QObject::destroyed, this, &ccOverlayDialog::onLinkedWindowDeletion);
}
return true;
}
void ccOverlayDialog::onLinkedWindowDeletion(QObject* object/*=0*/)
{
if (m_processing)
stop(false);
linkWith(nullptr);
}
bool ccOverlayDialog::start()
{
if (m_processing)
return false;
m_processing = true;
//auto-show
show();
return true;
}
void ccOverlayDialog::stop(bool accepted)
{
m_processing = false;
//auto-hide
hide();
linkWith(nullptr);
emit processFinished(accepted);
}
void ccOverlayDialog::reject()
{
QDialog::reject();
stop(false);
}
void ccOverlayDialog::addOverridenShortcut(Qt::Key key)
{
m_overriddenKeys.push_back(key);
}
bool ccOverlayDialog::eventFilter(QObject *obj, QEvent *e)
{
if (e->type() == QEvent::KeyPress)
{
QKeyEvent* keyEvent = static_cast<QKeyEvent*>(e);
if (m_overriddenKeys.contains(keyEvent->key()))
{
emit shortcutTriggered(keyEvent->key());
return true;
}
else
{
return QDialog::eventFilter(obj, e);
}
}
else
{
if (e->type() == QEvent::Show)
{
emit shown();
}
// standard event processing
return QDialog::eventFilter(obj, e);
}
}
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