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/***************************************************************************
* fqterm, a terminal emulator for both BBS and *nix. *
* Copyright (C) 2008 fqterm development group. *
* *
* 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; either version 2 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 for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#include <QPoint>
#include <QFrame>
#include <QResizeEvent>
#include <QEvent>
#include "overlayWidget.h"
namespace FQTerm {
OverlayWidget::OverlayWidget(QWidget *parent, QWidget *anchor)
: QFrame(parent->parentWidget()->parentWidget()),
anchor_(anchor),
parent_(parent) {
parent->installEventFilter(this);
hide();
}
void OverlayWidget::reposition() {
setMaximumSize(parentWidget()->size());
adjustSize();
// p is in the alignWidget's coordinates
QPoint p;
p.setX(anchor_->width() - width());
p.setY(-height());
// Position in the toplevelwidget's coordinates
QPoint pTopLevel = anchor_->mapTo(topLevelWidget(), p);
// Position in the widget's parentWidget coordinates
QPoint pParent = parentWidget()->mapFrom(topLevelWidget(), pTopLevel);
// keep it on the screen
if (pParent.x() < 0) {
pParent.rx() = 0;
}
// Move 'this' to that position.
move(pParent);
}
bool OverlayWidget::eventFilter(QObject *o, QEvent *e) {
if (e->type() == QEvent::Move || e->type() == QEvent::Resize) {
reposition();
}
return QFrame::eventFilter(o, e);
}
void OverlayWidget::resizeEvent(QResizeEvent *ev) {
reposition();
QFrame::resizeEvent(ev);
}
bool OverlayWidget::event(QEvent *e) {
if (e->type() == QEvent::ChildAdded) {
adjustSize();
}
return QFrame::event(e);
}
}
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