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123 lines
3.1 KiB
C++
123 lines
3.1 KiB
C++
/*
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* Copyright (C) 2007, 2008, 2009, 2010 Ivan Cukic <ivan.cukic(at)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 Lesser/Library General Public License version 2,
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* or (at your option) any later version, as published by the Free
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* Software Foundation
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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 Lesser/Library General Public License for more details
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*
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* You should have received a copy of the GNU Lesser/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 "FlipLayout.h"
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#include <QGraphicsWidget>
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#include <QMap>
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#include <QSet>
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namespace Lancelot
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{
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FlipLayoutManager * FlipLayoutManager::m_instance = NULL;
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class FlipLayoutManager::Private {
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public:
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Plasma::Flip globalFlip;
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QSet < QGraphicsLayout * > globalFlipLayouts;
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QMap < QGraphicsLayout *, Plasma::Flip > flips;
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};
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FlipLayoutManager::FlipLayoutManager()
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: d(new Private())
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{
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}
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FlipLayoutManager::~FlipLayoutManager()
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{
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delete d;
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}
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FlipLayoutManager * FlipLayoutManager::self()
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{
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if (m_instance == NULL) {
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m_instance = new FlipLayoutManager();
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}
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return m_instance;
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}
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void FlipLayoutManager::setGlobalFlip(Plasma::Flip flip)
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{
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d->globalFlip = flip;
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}
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Plasma::Flip FlipLayoutManager::globalFlip() const
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{
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return d->globalFlip;
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}
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void FlipLayoutManager::setFlip(const QGraphicsLayout * layout, Plasma::Flip flip)
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{
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QGraphicsLayout * l = const_cast<QGraphicsLayout *>(layout);
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d->globalFlipLayouts.remove(l);
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if (d->flips[l] != flip) {
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d->flips[l] = flip;
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l->setGeometry(l->geometry());
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}
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}
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void FlipLayoutManager::setUseGlobalFlip(const QGraphicsLayout * layout)
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{
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QGraphicsLayout * l = const_cast<QGraphicsLayout *>(layout);
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d->flips.remove(l);
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d->globalFlipLayouts.insert(l);
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}
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Plasma::Flip FlipLayoutManager::flip(const QGraphicsLayout * layout) const
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{
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QGraphicsLayout * l = const_cast<QGraphicsLayout *>(layout);
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if (d->globalFlipLayouts.contains(l)) {
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return d->globalFlip;
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} else if (d->flips.contains(l)) {
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return d->flips[l];
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}
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return 0;
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}
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void FlipLayoutManager::setGeometry(QGraphicsLayout * layout) const
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{
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int count = layout->count();
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QRectF rect = layout->geometry();
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if (flip(layout) == Plasma::NoFlip) {
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return;
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}
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QRectF childGeometry;
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for (int i = 0; i < count; i++) {
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QGraphicsLayoutItem * item = layout->itemAt(i);
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if (!item) continue;
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childGeometry = item->geometry();
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if (flip(layout) & Plasma::HorizontalFlip) {
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childGeometry.moveLeft(rect.left() + rect.right() - childGeometry.right());
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}
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if (flip(layout) & Plasma::VerticalFlip) {
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childGeometry.moveTop(rect.top() + rect.bottom() - childGeometry.bottom());
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}
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item->setGeometry(childGeometry);
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}
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}
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}
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