147 lines
3.9 KiB
C++
147 lines
3.9 KiB
C++
/*
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* Copyright 2005 by Aaron Seigo <aseigo@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <plasma/plasma.h>
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#include <QDesktopWidget>
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#include <QGraphicsScene>
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#include <QGraphicsView>
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#include <plasma/containment.h>
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#include <plasma/view.h>
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namespace Plasma
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{
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qreal scalingFactor(ZoomLevel level)
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{
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switch (level) {
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case DesktopZoom:
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return 1;
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break;
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case GroupZoom:
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return 0.5;
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break;
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case OverviewZoom:
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return 0.2;
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break;
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}
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// to make odd compilers not warn like silly beasts
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return 1;
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}
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Direction locationToDirection(Location location)
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{
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switch (location) {
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case Floating:
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case Desktop:
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case TopEdge:
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case FullScreen:
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//TODO: should we be smarter for floating and planer?
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// perhaps we should take a QRect and/or QPos as well?
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return Down;
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case BottomEdge:
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return Up;
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case LeftEdge:
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return Right;
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case RightEdge:
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return Left;
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}
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return Down;
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}
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QPoint popupPosition(const QGraphicsItem *item, const QSize &s)
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{
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QGraphicsView *v = viewFor(item);
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if (!v) {
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return QPoint(0, 0);
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}
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QPoint pos = v->mapFromScene(item->scenePos());
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pos = v->mapToGlobal(pos);
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//kDebug() << "==> position is" << item->scenePos() << v->mapFromScene(item->scenePos()) << pos;
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Plasma::View *pv = dynamic_cast<Plasma::View *>(v);
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Plasma::Location loc = Floating;
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if (pv && pv->containment()) {
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loc = pv->containment()->location();
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}
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switch (loc) {
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case BottomEdge:
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pos = QPoint(pos.x(), pos.y() - s.height());
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break;
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case TopEdge:
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pos = QPoint(pos.x(), pos.y() + (int)item->boundingRect().size().height());
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break;
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case LeftEdge:
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pos = QPoint(pos.x() + (int)item->boundingRect().size().width(), pos.y());
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break;
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case RightEdge:
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pos = QPoint(pos.x() - s.width(), pos.y());
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break;
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default:
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if (pos.y() - s.height() > 0) {
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pos = QPoint(pos.x(), pos.y() - s.height());
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} else {
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pos = QPoint(pos.x(), pos.y() + (int)item->boundingRect().size().height());
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}
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}
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//are we out of screen?
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QRect screenRect =
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QApplication::desktop()->screenGeometry(pv ? pv->containment()->screen() : -1);
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//kDebug() << "==> rect for" << (pv ? pv->containment()->screen() : -1) << "is" << screenRect;
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if (pos.rx() + s.width() > screenRect.right()) {
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pos.rx() -= ((pos.rx() + s.width()) - screenRect.right());
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}
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if (pos.ry() + s.height() > screenRect.bottom()) {
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pos.ry() -= ((pos.ry() + s.height()) - screenRect.bottom());
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}
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pos.rx() = qMax(0, pos.rx());
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return pos;
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}
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QGraphicsView *viewFor(const QGraphicsItem *item)
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{
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if (!item->scene()) {
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return 0;
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}
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QGraphicsView *found = 0;
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foreach (QGraphicsView *view, item->scene()->views()) {
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if (view->sceneRect().intersects(item->sceneBoundingRect()) ||
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view->sceneRect().contains(item->scenePos())) {
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if (!found || view->isActiveWindow()) {
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found = view;
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}
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}
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}
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return found;
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}
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} // Plasma namespace
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