191 lines
5.0 KiB
C++
191 lines
5.0 KiB
C++
/*
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* Copyright 2009 by Rob Scheepmaker <r.scheepmaker@student.utwente.nl>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#include "extendergroup.h"
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#include <QAction>
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#include <QString>
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#include <QList>
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#include <QtGui/QGraphicsWidget>
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#include "applet.h"
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#include "extender.h"
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#include "extenderitem.h"
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#include "theme.h"
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#include "private/extendergroup_p.h"
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namespace Plasma
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{
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ExtenderGroup::ExtenderGroup(Extender *parent, uint groupId)
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: ExtenderItem(parent, groupId),
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d(new ExtenderGroupPrivate(this))
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{
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connect(extender(), SIGNAL(itemAttached(Plasma::ExtenderItem*)),
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this, SLOT(addItemToGroup(Plasma::ExtenderItem*)));
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connect(extender(), SIGNAL(itemDetached(Plasma::ExtenderItem*)),
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this, SLOT(removeItemFromGroup(Plasma::ExtenderItem*)));
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config().writeEntry("isGroup", true);
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QAction *expand = new QAction(this);
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expand->setVisible(true);
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expand->setToolTip(i18n("Show this group."));
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connect(expand, SIGNAL(triggered()), this, SLOT(expandGroup()));
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addAction("expand", expand);
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QAction *collapse = new QAction(this);
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collapse->setVisible(false);
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collapse->setToolTip(i18n("Hide this group."));
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connect(collapse, SIGNAL(triggered()), this, SLOT(collapseGroup()));
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addAction("collapse", collapse);
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d->themeChanged();
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QString groupName;
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foreach (ExtenderItem *item, extender()->attachedItems()) {
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groupName = item->config().readEntry("group", "");
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if (!groupName.isEmpty() && groupName == name()) {
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item->setGroup(this);
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}
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}
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if (items().isEmpty() && d->hideIfEmpty && !isDetached()) {
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hide();
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extender()->itemRemovedEvent(this);
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}
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connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()),
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this, SLOT(themeChanged()));
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}
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ExtenderGroup::~ExtenderGroup()
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{
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delete d;
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}
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QList<ExtenderItem*> ExtenderGroup::items() const
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{
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QList<ExtenderItem*> result;
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foreach (ExtenderItem *item, extender()->attachedItems()) {
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if (item->group() == this) {
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result.append(item);
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}
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}
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return result;
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}
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bool ExtenderGroup::hideIfEmpty() const
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{
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return d->hideIfEmpty;
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}
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void ExtenderGroup::setHideIfEmpty(bool hideIfEmpty)
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{
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d->hideIfEmpty = hideIfEmpty;
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if (hideIfEmpty && items().isEmpty()) {
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hide();
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extender()->itemRemovedEvent(this);
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} else if (!hideIfEmpty && !isVisible()) {
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extender()->itemAddedEvent(this);
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show();
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}
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}
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void ExtenderGroup::expandGroup()
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{
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d->collapsed = false;
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action("collapse")->setVisible(true);
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action("expand")->setVisible(false);
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foreach (ExtenderItem *item, extender()->attachedItems()) {
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if (item->group() == this) {
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item->show();
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extender()->itemAddedEvent(item);
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}
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}
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}
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void ExtenderGroup::collapseGroup()
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{
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d->collapsed = true;
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action("collapse")->setVisible(false);
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action("expand")->setVisible(true);
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foreach (ExtenderItem *item, extender()->attachedItems()) {
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if (item != this && item->group() == this) {
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item->hide();
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extender()->itemRemovedEvent(item);
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}
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}
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}
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ExtenderGroupPrivate::ExtenderGroupPrivate(ExtenderGroup *group)
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: collapsed(true),
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hideIfEmpty(true)
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{
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q = group;
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}
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ExtenderGroupPrivate::~ExtenderGroupPrivate()
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{
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}
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void ExtenderGroupPrivate::addItemToGroup(Plasma::ExtenderItem *item)
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{
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if (item->group() == q) {
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if (collapsed) {
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q->extender()->itemRemovedEvent(item);
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item->hide();
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} else {
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q->extender()->itemAddedEvent(item);
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item->show();
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}
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if (!q->isVisible()) {
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q->extender()->itemAddedEvent(q);
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q->show();
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}
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}
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}
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void ExtenderGroupPrivate::removeItemFromGroup(Plasma::ExtenderItem *item)
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{
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if (item->group() == q) {
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if (q->items().isEmpty() && hideIfEmpty && !q->isDetached()) {
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q->extender()->itemRemovedEvent(q);
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q->hide();
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}
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}
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}
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void ExtenderGroupPrivate::themeChanged()
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{
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Plasma::Svg *svg = new Plasma::Svg(q);
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svg->setImagePath("widgets/configuration-icons");
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svg->resize();
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q->action("expand")->setIcon(QIcon(svg->pixmap("restore")));
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q->action("collapse")->setIcon(QIcon(svg->pixmap("collapse")));
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}
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} // Plasma namespace
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#include "extendergroup.moc"
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