432 lines
12 KiB
C++
432 lines
12 KiB
C++
/***************************************************************************
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* Copyright 2011 Marco Martin <mart@kde.org> *
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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 General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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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 General Public License *
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* 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 "dialog.h"
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#include "declarativeitemcontainer_p.h"
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#include <QApplication>
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#include <QDeclarativeItem>
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#include <QDesktopWidget>
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#include <QGraphicsObject>
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#include <QGraphicsWidget>
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#include <QTimer>
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#include <QLayout>
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#include <Plasma/Corona>
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#include <Plasma/Dialog>
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#include <Plasma/WindowEffects>
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int DialogProxy::offscreenX = 0;
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int DialogProxy::offscreenY = 0;
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DialogMargins::DialogMargins(Plasma::Dialog *dialog, QObject *parent)
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: QObject(parent),
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m_dialog(dialog)
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{
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checkMargins();
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}
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void DialogMargins::checkMargins()
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{
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int left, top, right, bottom;
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m_dialog->getContentsMargins(&left, &top, &right, &bottom);
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if (left != m_left) {
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m_left = left;
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emit leftChanged();
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}
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if (top != m_top) {
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m_top = top;
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emit topChanged();
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}
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if (right != m_right) {
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m_right = right;
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emit rightChanged();
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}
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if (bottom != m_bottom) {
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m_bottom = bottom;
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emit bottomChanged();
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}
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}
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int DialogMargins::left() const
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{
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return m_left;
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}
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int DialogMargins::top() const
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{
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return m_top;
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}
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int DialogMargins::right() const
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{
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return m_right;
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}
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int DialogMargins::bottom() const
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{
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return m_bottom;
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}
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DialogProxy::DialogProxy(QObject *parent)
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: QObject(parent),
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m_declarativeItemContainer(0),
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m_activeWindow(false),
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m_location(Plasma::Floating)
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{
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m_dialog = new Plasma::Dialog();
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m_margins = new DialogMargins(m_dialog, this);
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m_dialog->installEventFilter(this);
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m_flags = m_dialog->windowFlags();
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}
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DialogProxy::~DialogProxy()
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{
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delete m_declarativeItemContainer;
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delete m_dialog;
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}
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QGraphicsObject *DialogProxy::mainItem() const
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{
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return m_mainItem.data();
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}
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void DialogProxy::setMainItem(QGraphicsObject *mainItem)
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{
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if (m_mainItem.data() != mainItem) {
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if (m_mainItem) {
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m_mainItem.data()->setParent(mainItem ? mainItem->parent() : 0);
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}
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m_mainItem = mainItem;
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if (mainItem) {
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mainItem->setParentItem(0);
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mainItem->setParent(this);
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}
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//if this is called in Compenent.onCompleted we have to wait a loop the item is added to a scene
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QTimer::singleShot(0, this, SLOT(syncMainItem()));
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emit mainItemChanged();
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}
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}
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void DialogProxy::syncMainItem()
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{
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if (!m_mainItem) {
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return;
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}
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if (static_cast<QGraphicsObject *>(m_dialog->graphicsWidget()) == m_mainItem.data() ||
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(m_declarativeItemContainer && m_declarativeItemContainer->declarativeItem() == m_mainItem.data())) {
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return;
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}
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//not have a scene? go up in the hyerarchy until we find something with a scene
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QGraphicsScene *scene = m_mainItem.data()->scene();
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if (!scene) {
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QObject *parent = m_mainItem.data();
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while ((parent = parent->parent())) {
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QGraphicsObject *qo = qobject_cast<QGraphicsObject *>(parent);
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if (qo) {
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scene = qo->scene();
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if (scene) {
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scene->addItem(m_mainItem.data());
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break;
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}
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}
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}
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}
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if (!scene) {
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return;
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}
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//the parent of the qobject never changed, only the parentitem, so put it back what it was
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m_mainItem.data()->setParentItem(qobject_cast<QGraphicsObject *>(m_mainItem.data()->parent()));
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QGraphicsWidget *widget = qobject_cast<QGraphicsWidget *>(m_mainItem.data());
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if (widget) {
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if (m_declarativeItemContainer) {
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m_declarativeItemContainer->deleteLater();
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m_declarativeItemContainer = 0;
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}
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} else {
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QDeclarativeItem *di = qobject_cast<QDeclarativeItem *>(m_mainItem.data());
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if (di) {
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if (!m_declarativeItemContainer) {
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m_declarativeItemContainer = new DeclarativeItemContainer();
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scene->addItem(m_declarativeItemContainer);
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}
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m_declarativeItemContainer->setDeclarativeItem(di);
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widget = m_declarativeItemContainer;
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}
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}
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m_dialog->setGraphicsWidget(widget);
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if (!qobject_cast<Plasma::Corona *>(scene)) {
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offscreenX -= 10000;
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offscreenY -= 10000;
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widget->setPos(offscreenX, offscreenY);
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}
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}
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bool DialogProxy::isVisible() const
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{
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return m_dialog->isVisible();
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}
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void DialogProxy::setVisible(const bool visible)
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{
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if (m_dialog->isVisible() != visible) {
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//FIXME: workaround to prevent dialogs of Popup type disappearing on the second show
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m_dialog->resize(0,0);
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m_dialog->syncToGraphicsWidget();
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m_dialog->setVisible(visible);
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if (visible) {
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m_dialog->raise();
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}
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}
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}
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QPoint DialogProxy::popupPosition(QGraphicsObject *item, int alignment)
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{
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QGraphicsObject *actualItem = item;
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//if no item is passed search the root item in order to figure out the view
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if (!actualItem) {
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actualItem = qobject_cast<QGraphicsObject *>(parent());
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//search the root object
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while (true) {
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QGraphicsObject *ancestor = qobject_cast<QGraphicsObject *>(actualItem->parent());
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if (ancestor) {
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actualItem = ancestor;
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} else {
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break;
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}
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}
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if (!actualItem) {
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return QPoint();
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}
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}
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//ensure the dialog has the proper size
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syncMainItem();
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m_dialog->syncToGraphicsWidget();
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Plasma::Corona *corona = qobject_cast<Plasma::Corona *>(actualItem->scene());
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if (corona && item) {
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return corona->popupPosition(actualItem, m_dialog->size(), (Qt::AlignmentFlag)alignment);
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} else {
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if (!actualItem->scene()) {
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return QPoint();
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}
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QList<QGraphicsView*> views = actualItem->scene()->views();
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if (views.size() < 1) {
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return QPoint();
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}
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QGraphicsView *view = 0;
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if (views.size() == 1) {
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view = views[0];
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} else {
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QGraphicsView *found = 0;
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QGraphicsView *possibleFind = 0;
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foreach (QGraphicsView *v, views) {
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if (v->sceneRect().intersects(actualItem->sceneBoundingRect()) ||
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v->sceneRect().contains(actualItem->scenePos())) {
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if (v->isActiveWindow()) {
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found = v;
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} else {
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possibleFind = v;
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}
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}
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}
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view = found ? found : possibleFind;
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}
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if (!view) {
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return QPoint();
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}
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//if no item was explicitly specified, align the dialog in the center of the parent view
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if (!item) {
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return view->geometry().center() - QPoint(m_dialog->width()/2, m_dialog->height()/2);
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}
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//swap direction if necessary
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if (QApplication::isRightToLeft() && alignment != Qt::AlignCenter) {
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if (alignment == Qt::AlignRight) {
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alignment = Qt::AlignLeft;
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} else {
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alignment = Qt::AlignRight;
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}
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}
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int xOffset = 0;
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if (alignment == Qt::AlignCenter) {
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xOffset = actualItem->boundingRect().width()/2 - m_dialog->width()/2;
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} else if (alignment == Qt::AlignRight) {
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xOffset = actualItem->boundingRect().width() - m_dialog->width();
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}
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const QRect avail = QApplication::desktop()->availableGeometry(view);
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QPoint menuPos = view->mapToGlobal(view->mapFromScene(actualItem->scenePos()+QPoint(xOffset, actualItem->boundingRect().height())));
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if (menuPos.y() + m_dialog->height() > avail.bottom()) {
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menuPos = view->mapToGlobal(view->mapFromScene(actualItem->scenePos() - QPoint(-xOffset, m_dialog->height())));
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}
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return menuPos;
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}
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}
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int DialogProxy::x() const
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{
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return m_dialog->pos().x();
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}
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void DialogProxy::setX(int x)
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{
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m_dialog->move(x, m_dialog->pos().y());
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}
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int DialogProxy::y() const
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{
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return m_dialog->pos().y();
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}
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void DialogProxy::setY(int y)
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{
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m_dialog->move(m_dialog->pos().x(), y);
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}
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int DialogProxy::width() const
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{
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return m_dialog->size().width();
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}
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int DialogProxy::height() const
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{
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return m_dialog->size().height();
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}
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bool DialogProxy::isActiveWindow() const
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{
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return m_activeWindow;
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}
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void DialogProxy::activateWindow()
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{
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m_dialog->activateWindow();
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}
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int DialogProxy::windowFlags() const
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{
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return (int)m_flags;
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}
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#ifndef Q_WS_WIN
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qulonglong DialogProxy::windowId() const
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{
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return m_dialog->winId();
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}
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#endif
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void DialogProxy::setWindowFlags(const int flags)
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{
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m_flags = (Qt::WindowFlags)flags;
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m_dialog->setWindowFlags(Qt::FramelessWindowHint|m_flags);
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}
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int DialogProxy::location() const
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{
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return (int)m_location;
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}
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void DialogProxy::setLocation(int location)
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{
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if (m_location == location) {
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return;
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}
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m_location = (Plasma::Location)location;
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emit locationChanged();
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}
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QObject *DialogProxy::margins() const
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{
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return m_margins;
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}
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bool DialogProxy::eventFilter(QObject *watched, QEvent *event)
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{
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if (watched == m_dialog && event->type() == QEvent::Move) {
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QMoveEvent *me = static_cast<QMoveEvent *>(event);
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if (me->oldPos().x() != me->pos().x()) {
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emit xChanged();
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}
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if (me->oldPos().y() != me->pos().y()) {
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emit yChanged();
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}
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if ((me->oldPos().x() != me->pos().x()) || (me->oldPos().y() != me->pos().y())) {
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m_margins->checkMargins();
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}
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} else if (watched == m_dialog && event->type() == QEvent::Resize) {
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QResizeEvent *re = static_cast<QResizeEvent *>(event);
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if (re->oldSize().width() != re->size().width()) {
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emit widthChanged();
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}
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if (re->oldSize().height() != re->size().height()) {
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emit heightChanged();
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}
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} else if (watched == m_dialog && event->type() == QEvent::Show) {
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Plasma::WindowEffects::slideWindow(m_dialog, m_location);
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emit visibleChanged();
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} else if (watched == m_dialog && event->type() == QEvent::Hide) {
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Plasma::WindowEffects::slideWindow(m_dialog, m_location);
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emit visibleChanged();
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} else if (watched == m_dialog && event->type() == QEvent::WindowActivate) {
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m_activeWindow = true;
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emit activeWindowChanged();
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} else if (watched == m_dialog && event->type() == QEvent::WindowDeactivate) {
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m_activeWindow = false;
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emit activeWindowChanged();
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}
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return false;
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}
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void DialogProxy::setAttribute(int attribute, bool on)
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{
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m_dialog->setAttribute((Qt::WidgetAttribute)attribute, on);
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}
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#include "dialog.moc"
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