211 lines
3.2 KiB
C++
211 lines
3.2 KiB
C++
/*
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* Copyright (C) 2007 by Alexander Wiedenbruch <mail@wiedenbruch.de>
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* and Matias Valdenegro <mvaldenegro@informatica.utem.cl>
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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 version 2 as
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* published by the Free 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 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 <QtCore/QList>
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#include "widget.h"
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#include "widget.moc"
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#include "layout.h"
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namespace Plasma
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{
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class Widget::Private
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{
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public:
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Private() : parent(0) { }
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~Private() { }
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QRectF geometry;
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Widget *parent;
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Layout *layout;
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QList<Widget *> childList;
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};
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Widget::Widget(Widget *parent)
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: DataVisualization(),
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QGraphicsItem(parent),
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d(new Private)
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{
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d->parent = parent;
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d->layout = 0;
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if(parent) {
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parent->addChild(this);
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parent->setGeometry(QRectF(QPointF(0.0, 0.0), parent->size()));
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}
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}
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Widget::~Widget()
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{
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delete d;
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}
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Qt::Orientations Widget::expandingDirections() const
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{
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return 0;
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}
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QSizeF Widget::maximumSize() const
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{
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return QSizeF();
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}
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QSizeF Widget::minimumSize() const
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{
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return QSizeF(0.0, 0.0);
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}
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bool Widget::hasHeightForWidth() const
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{
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return false;
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}
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qreal Widget::heightForWidth(qreal w) const
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{
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Q_UNUSED(w);
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return -1.0;
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}
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bool Widget::hasWidthForHeight() const
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{
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return false;
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}
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qreal Widget::widthForHeight(qreal h) const
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{
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Q_UNUSED(h);
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return -1.0;
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}
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QRectF Widget::geometry() const
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{
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return d->geometry;
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}
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void Widget::setGeometry(const QRectF& geometry)
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{
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prepareGeometryChange();
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d->geometry = geometry;
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updateGeometry();
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update();
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}
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void Widget::updateGeometry()
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{
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if(layout()) {
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layout()->setGeometry(QRectF(QPointF(0.0, 0.0), size()));
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}
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}
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void Widget::invalidate()
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{
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updateGeometry();
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if(parent()) {
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parent()->updateGeometry();
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}
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}
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QSizeF Widget::sizeHint() const
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{
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return QSizeF(0.0, 0.0);
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}
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QSizeF Widget::size() const
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{
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return geometry().size();
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}
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QRectF Widget::boundingRect() const
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{
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return geometry();
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}
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void Widget::resize(const QSizeF& size)
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{
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setGeometry(QRectF(d->geometry.topLeft(), size));
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}
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void Widget::resize(qreal w, qreal h)
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{
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resize(QSizeF(w, h));
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}
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void Widget::updated(const QString& source, const Plasma::DataEngine::Data& data)
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{
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Q_UNUSED(source);
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Q_UNUSED(data);
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}
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void Widget::setLayout(Layout *l)
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{
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d->layout = l;
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}
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Layout *Widget::layout() const
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{
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return d->layout;
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}
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Widget *Widget::parent() const
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{
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return d->parent;
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}
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void Widget::addChild(Widget *w)
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{
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if(!w) {
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return;
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}
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w->reparent(this);
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w->setParentItem(this);
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d->childList.append(w);
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qDebug("Added Child Widget : %p", (void*)w);
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if(layout()) {
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layout()->addItem(w);
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updateGeometry();
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}
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}
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void Widget::reparent(Widget *w)
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{
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d->parent = w;
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update();
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}
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} // Plasma namespace
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