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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of libmeegotouch.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation
** and appearing in the file LICENSE.LGPL included in the packaging
** of this file.
**
****************************************************************************/
#include "mlayout_p.h"
#include "mabstractlayoutpolicy.h"
#include "mbasiclayoutanimation.h"
#include "mlayouthelper_p.h"
#include "mapplication.h"
#include "mwidget_p.h"
#include "mdebug.h"
#include <MScene>
MLayoutPrivate::MLayoutPrivate(MLayout *l) :
q_ptr(l),
portraitPolicy(NULL),
landscapePolicy(NULL),
current_policy(NULL),
animation(NULL),
m_orientation(M::Portrait)
{
Q_ASSERT(0 != q_ptr);
}
void MLayoutPrivate::registerPolicy(MAbstractLayoutPolicy *policy)
{
Q_Q(MLayout);
Q_ASSERT(policy);
if (policies.contains(policy))
return;
policies.append(policy);
if (!current_policy)
q->setPolicy(policy);
}
void MLayoutPrivate::unregisterPolicy(MAbstractLayoutPolicy *policy)
{
Q_Q(MLayout);
Q_ASSERT(policy);
if (!policies.contains(policy))
return;
if (landscapePolicy == policy)
q->setLandscapePolicy(NULL);
if (portraitPolicy == policy)
q->setPortraitPolicy(NULL);
policies.removeAll(policy);
if (current_policy == policy) {
if (policies.isEmpty())
q->setPolicy(0);
else
q->setPolicy(policies.last());
}
}
void MLayoutPrivate::setItemGeometry(int index, const QRectF &geometry)
{
Q_Q(MLayout);
if (0 > index || q->count() <= index) {
mWarning("MLayout") << Q_FUNC_INFO << "Attempting to set the geometry of the item at index" << index << "when there are" << q->count() << "items";
return;
}
LayoutItem &item = items[index];
item.geometry = geometry;
if (animation && item.item->graphicsItem() && item.item->graphicsItem()->isWidget()) {
animation->setItemGeometry(index, geometry);
} else {
// If no animator or the item is not a widget then do not animate
Q_ASSERT(!item.toBeDeleted); //It should have been deleted immediately in there's no animator or it is a layout
//Show item
if(item.item->graphicsItem())
showItemNow(item.item->graphicsItem());
item.item->setGeometry(geometry);
}
}
QRectF MLayoutPrivate::itemGeometry(int index) const
{
Q_Q(const MLayout);
if (0 > index || q->count() <= index) {
mWarning("MLayout") << Q_FUNC_INFO << "Attempting to set the geometry of the item at index" << index << "when there are" << q->count() << "items";
return QRectF();
}
return items.at(index).geometry;
}
void MLayoutPrivate::itemAnimationFinished(int index)
{
Q_Q(MLayout);
if (items.at(index).toBeDeleted)
q->removeAt(index); //This will delete the item as well
}
void MLayoutPrivate::animationFinished()
{
Q_Q(MLayout);
// check whether any item is now really deleted
for (int i = items.size() - 1; i >= 0; --i) {
if (items.at(i).toBeDeleted)
q->removeAt(i); //This will delete the item as well
}
}
void MLayoutPrivate::hideItem(int index)
{
const LayoutItem &item = items.at(index);
QGraphicsItem *graphicsItem = item.item->graphicsItem();
if(!graphicsItem)
return;
if (animation && graphicsItem->isWidget())
animation->hideItem(index);
else // If no animator, or the item is not a widget, or the widget is not visible, then do not animate
hideItemNow(graphicsItem);
}
void MLayoutPrivate::setOrientation(M::Orientation orientation)
{
Q_Q(MLayout);
if(orientation == m_orientation)
return;
m_orientation = orientation;
if (orientation == M::Portrait) {
if (portraitPolicy)
q->setPolicy(portraitPolicy);
} else if (landscapePolicy) {
q->setPolicy(landscapePolicy);
}
//since the rotation has changed, reread the values from the CSS config
foreach(MAbstractLayoutPolicy * policy, policies) {
Q_ASSERT(policy);
policy->updateStyle();
}
}
QGraphicsItem *MLayoutPrivate::parentItem() const
{
Q_Q(const MLayout);
const QGraphicsLayoutItem *parent = q;
while (parent && parent->isLayout()) {
parent = parent->parentLayoutItem();
}
return parent ? parent->graphicsItem() : 0;
}
M::Orientation MLayoutPrivate::orientation() const {
return m_orientation;
}
void MLayoutPrivate::recheckOrientation() {
//We need to check if the orientation has changed.
QGraphicsItem *parent = parentItem();
if(parent) {
QGraphicsWidget *w;
if(parent->isWidget()) {
w = static_cast<QGraphicsWidget*>(parent); //We can't assume it is a MWidget
} else {
w = parent->parentWidget();
if(!w)
return;
}
if(w->scene() && !w->scene()->views().isEmpty()) {
MWindow *window = qobject_cast<MWindow *>(w->scene()->views().at(0));
if(window) {
setOrientation(window->orientation());
}
}
}
}
void MLayoutPrivate::showItemNow(QGraphicsItem *graphicsItem) const
{
if(!graphicsItem)
return;
MWidget *widget = dynamic_cast<MWidget *>(graphicsItem);
if (widget) {
widget->d_ptr->layoutHidden = false;
if (!widget->d_ptr->explicitlyHidden)
graphicsItem->show(); //Show only if item was not set to invisible by the user
} else
graphicsItem->show(); //Show always for non-mwidgets
}
void MLayoutPrivate::removeHiddenFlag(QGraphicsItem *graphicsItem) const
{
MWidget *widget = dynamic_cast<MWidget *>(graphicsItem);
if (widget)
widget->d_ptr->layoutHidden = false;
}
void MLayoutPrivate::hideItemNow(QGraphicsItem *graphicsItem) const
{
graphicsItem->hide();
MWidget *widget = dynamic_cast<MWidget *>(graphicsItem);
if (widget)
widget->d_ptr->layoutHidden = true;
}
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