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Diffstat (limited to 'src/declarative/canvas/qsimplecanvas_graphicsview.cpp')
| -rw-r--r-- | src/declarative/canvas/qsimplecanvas_graphicsview.cpp | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/src/declarative/canvas/qsimplecanvas_graphicsview.cpp b/src/declarative/canvas/qsimplecanvas_graphicsview.cpp new file mode 100644 index 0000000..0f80128 --- /dev/null +++ b/src/declarative/canvas/qsimplecanvas_graphicsview.cpp @@ -0,0 +1,180 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used 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. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qsimplecanvas.h" +#include "qsimplecanvas_p.h" +#include "qsimplecanvasitem.h" +#include "qsimplecanvasitem_p.h" +#include <QGraphicsItem> +#include <QGraphicsSceneMouseEvent> + + +QT_BEGIN_NAMESPACE +static QHash<QGraphicsScene*,QSimpleCanvas*> sceneMap; + +QSimpleCanvasGraphicsView::QSimpleCanvasGraphicsView(QSimpleCanvasPrivate *parent) +: QGraphicsView(parent->q), canvas(parent) +{ + setScene(&_scene); + sceneMap[&_scene] = parent->q; + setFrameShape(QFrame::NoFrame); + viewport()->setAttribute(Qt::WA_OpaquePaintEvent); +} + +QSimpleCanvasGraphicsView::~QSimpleCanvasGraphicsView() +{ + sceneMap.remove(&_scene); +} + +QSimpleGraphicsItem::QSimpleGraphicsItem(QSimpleCanvasItem *canvasItem) +: /*scene(0),*/ owner(canvasItem) +{ + setAcceptedMouseButtons(Qt::NoButton); +} + +QSimpleGraphicsItem::~QSimpleGraphicsItem() +{ + owner->d_func()->graphicsItem = 0; +} + +void QSimpleGraphicsItem::paint(QPainter *painter, + const QStyleOptionGraphicsItem *, QWidget *) +{ + owner->paintContents(*painter); +} + +QRectF QSimpleGraphicsItem::boundingRect() const +{ + return owner->boundingRect(); +} + +void QSimpleGraphicsItem::mousePressEvent(QGraphicsSceneMouseEvent *event) +{ + owner->mousePressEvent(event); +} + +void QSimpleGraphicsItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) +{ + owner->mouseReleaseEvent(event); +} + +void QSimpleGraphicsItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) +{ + owner->mouseDoubleClickEvent(event); +} + +void QSimpleGraphicsItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) +{ + owner->mouseMoveEvent(event); +} + +bool QSimpleGraphicsItem::sceneEvent(QEvent *event) +{ + bool rv = QGraphicsItem::sceneEvent(event); + if(event->type() == QEvent::UngrabMouse) + owner->mouseUngrabEvent(); + return rv; +} + +QVariant QSimpleGraphicsItem::itemChange(GraphicsItemChange change, const QVariant &value) +{ + if(change == ItemSceneHasChanged) { + QSimpleCanvasItemPrivate *owner_d = static_cast<QSimpleCanvasItemPrivate*>(owner->d_ptr); + QSimpleCanvas *oldCanvas = owner_d->canvas; + owner_d->canvas = sceneMap[scene()]; + if (owner_d->canvas){ + if (owner->hasFocus()) + owner->canvas()->d->setFocusItem(owner, Qt::OtherFocusReason); + if (owner->options() & QSimpleCanvasItem::IsFocusPanel) { + if (owner_d->wantsActiveFocusPanelPendingCanvas) { + owner_d->hasBeenActiveFocusPanel = true; + owner->canvas()->d->setActiveFocusPanel(owner); + owner_d->wantsActiveFocusPanelPendingCanvas = false; + } + } + } + if(owner->options() & QSimpleCanvasItem::MouseFilter) + owner_d->gvRemoveMouseFilter(); + + if (oldCanvas != owner_d->canvas) + owner->canvasChanged(); + + if(owner->options() & QSimpleCanvasItem::MouseFilter) + owner_d->gvAddMouseFilter(); + } + + return QGraphicsItem::itemChange(change, value); +} + +void QSimpleGraphicsItem::keyPressEvent(QKeyEvent *event) +{ + owner->keyPressEvent(event); + QGraphicsItem::keyPressEvent(event); +} + +void QSimpleGraphicsItem::keyReleaseEvent(QKeyEvent *event) +{ + owner->keyReleaseEvent(event); + QGraphicsItem::keyReleaseEvent(event); +} + +void QSimpleGraphicsItem::focusInEvent(QFocusEvent *) +{ + if (!owner->hasFocus()) + owner->setFocus(true); +} + +void QSimpleCanvasItemPrivate::gvRemoveMouseFilter() +{ + QGraphicsScene *scene = graphicsItem->scene(); + if(!scene) return; + + scene->removeEventFilter(q_ptr); +} + +void QSimpleCanvasItemPrivate::gvAddMouseFilter() +{ + QGraphicsScene *scene = graphicsItem->scene(); + if(!scene) return; + + scene->installEventFilter(q_ptr); +} +QT_END_NAMESPACE |