plasma-framework/declarativeimports/core/dialog.cpp
2011-03-21 21:40:00 +01:00

229 lines
6.6 KiB
C++

/***************************************************************************
* Copyright 2011 Marco Martin <mart@kde.org> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
***************************************************************************/
#include "dialog.h"
#include <QDeclarativeItem>
#include <QGraphicsObject>
#include <QGraphicsWidget>
#include <QTimer>
#include <Plasma/Corona>
#include <Plasma/Dialog>
class DeclarativeItemContainer : public QGraphicsWidget
{
public:
DeclarativeItemContainer(QGraphicsItem *parent = 0)
: QGraphicsWidget(parent)
{}
~DeclarativeItemContainer()
{}
void setDeclarativeItem(QDeclarativeItem *item)
{
if (m_declarativeItem) {
m_declarativeItem.data()->removeSceneEventFilter(this);
}
m_declarativeItem = item;
static_cast<QGraphicsItem *>(item)->setParentItem(this);
setMinimumWidth(item->implicitWidth());
setMinimumHeight(item->implicitHeight());
resize(item->width(), item->height());
item->installSceneEventFilter(this);
}
QDeclarativeItem *declarativeItem() const
{
return m_declarativeItem.data();
}
protected:
void resizeEvent(QGraphicsSceneResizeEvent *event)
{
if (m_declarativeItem) {
m_declarativeItem.data()->setProperty("width", event->newSize().width());
m_declarativeItem.data()->setProperty("height", event->newSize().height());
}
}
bool sceneEventFilter(QGraphicsItem *watched, QEvent *event)
{
if (event->type() == QEvent::GraphicsSceneResize) {
resize(watched->boundingRect().size());
}
return QGraphicsWidget::sceneEventFilter(watched, event);
}
private:
QWeakPointer<QDeclarativeItem> m_declarativeItem;
};
DialogProxy::DialogProxy(QObject *parent)
: QObject(parent)
{
m_dialog = new Plasma::Dialog();
m_flags = m_dialog->windowFlags();
}
DialogProxy::~DialogProxy()
{
delete m_dialog;
delete m_declarativeItemContainer;
}
QGraphicsObject *DialogProxy::mainItem() const
{
return m_dialog->graphicsWidget();
}
void DialogProxy::setMainItem(QGraphicsObject *mainItem)
{
if (m_mainItem.data() != mainItem) {
if (m_mainItem) {
m_mainItem.data()->setParent(mainItem->parent());
}
m_mainItem = mainItem;
mainItem->setParentItem(0);
mainItem->setParent(this);
//if this is called in Compenent.onCompleted we have to wait a loop the item is added to a scene
QTimer::singleShot(0, this, SLOT(syncMainItem()));
emit mainItemChanged();
}
}
void DialogProxy::syncMainItem()
{
if (!m_mainItem) {
return;
}
//not have a scene? go up in the hyerarchy until we find something with a scene
QGraphicsScene *scene = m_mainItem.data()->scene();
if (!scene) {
QObject *parent = m_mainItem.data();
while ((parent = parent->parent())) {
QGraphicsObject *qo = qobject_cast<QGraphicsObject *>(parent);
if (qo) {
scene = qo->scene();
scene->addItem(m_mainItem.data());
break;
}
}
}
//the parent of the qobject never changed, only the parentitem, so put it back what it was
m_mainItem.data()->setParentItem(qobject_cast<QGraphicsObject *>(m_mainItem.data()->parent()));
QGraphicsWidget *widget = qobject_cast<QGraphicsWidget *>(m_mainItem.data());
if (widget) {
m_declarativeItemContainer->deleteLater();
m_declarativeItemContainer = 0;
} else {
QDeclarativeItem *di = qobject_cast<QDeclarativeItem *>(m_mainItem.data());
if (di) {
if (!m_declarativeItemContainer) {
m_declarativeItemContainer = new DeclarativeItemContainer();
scene->addItem(m_declarativeItemContainer);
}
m_declarativeItemContainer->setDeclarativeItem(di);
widget = m_declarativeItemContainer;
}
}
m_dialog->setGraphicsWidget(widget);
}
bool DialogProxy::isVisible() const
{
return m_dialog->isVisible();
}
void DialogProxy::setVisible(const bool visible)
{
if (m_dialog->isVisible() != visible) {
m_dialog->setVisible(visible);
if (visible) {
m_dialog->setWindowFlags(m_flags);
m_dialog->raise();
}
emit visibleChanged();
}
}
QPoint DialogProxy::popupPosition(QGraphicsObject *item) const
{
Plasma::Corona *corona = qobject_cast<Plasma::Corona *>(item->scene());
if (corona) {
return corona->popupPosition(item, m_dialog->size());
} else {
return QPoint();
}
}
int DialogProxy::x() const
{
return m_dialog->pos().x();
}
void DialogProxy::setX(int x)
{
m_dialog->move(x, m_dialog->pos().y());
}
int DialogProxy::y() const
{
return m_dialog->pos().y();
}
void DialogProxy::setY(int y)
{
m_dialog->move(m_dialog->pos().x(), y);
}
int DialogProxy::windowFlags() const
{
return (int)m_dialog->windowFlags();
}
void DialogProxy::setWindowFlags(const int flags)
{
m_flags = (Qt::WindowFlags)flags;
m_dialog->setWindowFlags((Qt::WindowFlags)flags);
}
bool DialogProxy::eventFilter(QObject *watched, QEvent *event)
{
if (watched == m_dialog && event->type() == QEvent::Move) {
emit positionChanged();
}
return false;
}
void DialogProxy::setAttribute(int attribute, bool on)
{
m_dialog->setAttribute((Qt::WidgetAttribute)attribute, on);
}
#include "dialog.moc"