195 lines
3.7 KiB
C++
195 lines
3.7 KiB
C++
/*
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* Copyright (C) 2007 by Matias Valdenegro T. <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 "vboxlayout.h"
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#include <QtCore/QList>
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namespace Plasma
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{
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class VBoxLayout::Private
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{
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public:
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Private() {}
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~Private() {}
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QRectF geometry;
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QList<LayoutItem *> childList;
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};
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VBoxLayout::VBoxLayout(LayoutItem *parent)
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: Layout(parent),
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d(new Private)
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{
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}
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VBoxLayout::~VBoxLayout()
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{
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}
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Qt::Orientations VBoxLayout::expandingDirections() const
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{
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return Qt::Vertical;
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}
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QSizeF VBoxLayout::minimumSize() const
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{
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return QSizeF();
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}
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QSizeF VBoxLayout::maximumSize() const
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{
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return QSizeF();
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}
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bool VBoxLayout::hasHeightForWidth() const
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{
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return true;
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}
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qreal VBoxLayout::heightForWidth(qreal w) const
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{
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return qreal();
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}
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QRectF VBoxLayout::geometry() const
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{
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return d->geometry;
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}
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void VBoxLayout::setGeometry(const QRectF& geometry)
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{
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if(!geometry.isValid() || geometry.isEmpty()) {
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qDebug("Invalid Geometry!");
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return;
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}
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qDebug("Geometry %p : %f, %f by %f, %f", this, geometry.x(), geometry.y(), geometry.width(), geometry.height());
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QList<LayoutItem *> childs;
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QList<LayoutItem *> expandingChilds;
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QList<QSizeF> sizes;
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QSizeF available = geometry.size() - QSizeF(2 * margin(), 2 * margin());
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foreach(LayoutItem *l, d->childList) {
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if(l->expandingDirections() & Qt::Vertical) {
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expandingChilds += l;
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} else {
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childs += l;
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}
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}
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foreach(LayoutItem *l, childs) {
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QSizeF hint = l->sizeHint();
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sizes.insert(indexOf(l), QSizeF(available.width(), hint.height()));
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available -= QSizeF(0.0, hint.height() + spacing());
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}
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qreal expandHeight = (available.height() - ((expandingChilds.count() - 1) * spacing())) / expandingChilds.count();
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foreach(LayoutItem *l, expandingChilds) {
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sizes.insert(indexOf(l),QSizeF(available.width(), expandHeight));
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}
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QPointF start = geometry.topLeft();
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start += QPointF(margin(), spacing());
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for(int i = 0; i < sizes.size(); i++) {
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LayoutItem *l = itemAt(i);
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l->setGeometry(QRectF(start, sizes[i]));
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start += QPointF(0.0, sizes[i].height() + spacing());
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}
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d->geometry = geometry;
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}
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QSizeF VBoxLayout::sizeHint() const
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{
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qreal hintHeight = 0.0;
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qreal hintWidth = 0.0;
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foreach(LayoutItem *l, d->childList) {
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QSizeF hint = l->sizeHint();
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hintWidth = qMax(hint.width(), hintWidth);
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hintHeight += hint.height() + spacing();
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}
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return QSizeF(hintWidth, hintHeight);
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}
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int VBoxLayout::count() const
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{
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return d->childList.count();
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}
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bool VBoxLayout::isEmpty() const
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{
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return count() == 0;
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}
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void VBoxLayout::addItem(LayoutItem *l)
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{
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d->childList.append(l);
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qDebug("Added Child LayoutItem : %p", l);
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setGeometry(geometry());
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}
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void VBoxLayout::removeItem(LayoutItem *l)
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{
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d->childList.removeAll(l);
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}
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int VBoxLayout::indexOf(LayoutItem *l) const
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{
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return d->childList.indexOf(l);
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}
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LayoutItem *VBoxLayout::itemAt(int i) const
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{
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return d->childList[i];
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}
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LayoutItem *VBoxLayout::takeAt(int i)
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{
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return d->childList.takeAt(i);
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setGeometry(geometry());
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}
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QSizeF VBoxLayout::size() const
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{
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return geometry().size();
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}
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}
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