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Diffstat (limited to 'src/declarative/items/qsgpathview_p_p.h')
| -rw-r--r-- | src/declarative/items/qsgpathview_p_p.h | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/declarative/items/qsgpathview_p_p.h b/src/declarative/items/qsgpathview_p_p.h new file mode 100644 index 0000000000..ed54f29abe --- /dev/null +++ b/src/declarative/items/qsgpathview_p_p.h @@ -0,0 +1,193 @@ +// Commit: ac5c099cc3c5b8c7eec7a49fdeb8a21037230350 +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QDECLARATIVEPATHVIEW_P_H +#define QDECLARATIVEPATHVIEW_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qsgpathview_p.h" +#include "qsgitem_p.h" +#include "qsgvisualitemmodel_p.h" + +#include <QtDeclarative/qdeclarative.h> +#include <QtCore/qdatetime.h> +#include <QtCore/qcoreapplication.h> + +#include <private/qdeclarativeanimation_p_p.h> +#include <private/qdeclarativeguard_p.h> + +QT_BEGIN_NAMESPACE + +class QDeclarativeOpenMetaObjectType; +class QSGPathViewAttached; +class QSGPathViewPrivate : public QSGItemPrivate, public QSGItemChangeListener +{ + Q_DECLARE_PUBLIC(QSGPathView) + +public: + QSGPathViewPrivate() + : path(0), currentIndex(0), currentItemOffset(0.0), startPc(0), lastDist(0) + , lastElapsed(0), offset(0.0), offsetAdj(0.0), mappedRange(1.0) + , stealMouse(false), ownModel(false), interactive(true), haveHighlightRange(true) + , autoHighlight(true), highlightUp(false), layoutScheduled(false) + , moving(false), flicking(false) + , dragMargin(0), deceleration(100) + , moveOffset(this, &QSGPathViewPrivate::setAdjustedOffset) + , firstIndex(-1), pathItems(-1), requestedIndex(-1) + , moveReason(Other), moveDirection(Shortest), attType(0), highlightComponent(0), highlightItem(0) + , moveHighlight(this, &QSGPathViewPrivate::setHighlightPosition) + , highlightPosition(0) + , highlightRangeStart(0), highlightRangeEnd(0) + , highlightRangeMode(QSGPathView::StrictlyEnforceRange) + , highlightMoveDuration(300), modelCount(0) + { + } + + void init(); + + void itemGeometryChanged(QSGItem *item, const QRectF &newGeometry, const QRectF &oldGeometry) { + if ((newGeometry.size() != oldGeometry.size()) + && (!highlightItem || item != highlightItem)) { + if (QSGPathViewAttached *att = attached(item)) + att->m_percent = -1; + scheduleLayout(); + } + } + + void scheduleLayout() { + Q_Q(QSGPathView); + if (!layoutScheduled) { + layoutScheduled = true; + q->polish(); + } + } + + QSGItem *getItem(int modelIndex); + void releaseItem(QSGItem *item); + QSGPathViewAttached *attached(QSGItem *item); + void clear(); + void updateMappedRange(); + qreal positionOfIndex(qreal index) const; + void createHighlight(); + void updateHighlight(); + void setHighlightPosition(qreal pos); + bool isValid() const { + return model && model->count() > 0 && model->isValid() && path; + } + + void handleMousePressEvent(QGraphicsSceneMouseEvent *event); + void handleMouseMoveEvent(QGraphicsSceneMouseEvent *event); + void handleMouseReleaseEvent(QGraphicsSceneMouseEvent *); + + int calcCurrentIndex(); + void updateCurrent(); + static void fixOffsetCallback(void*); + void fixOffset(); + void setOffset(qreal offset); + void setAdjustedOffset(qreal offset); + void regenerate(); + void updateItem(QSGItem *, qreal); + void snapToCurrent(); + QPointF pointNear(const QPointF &point, qreal *nearPercent=0) const; + + QDeclarativePath *path; + int currentIndex; + QDeclarativeGuard<QSGItem> currentItem; + qreal currentItemOffset; + qreal startPc; + QPointF startPoint; + qreal lastDist; + int lastElapsed; + qreal offset; + qreal offsetAdj; + qreal mappedRange; + bool stealMouse : 1; + bool ownModel : 1; + bool interactive : 1; + bool haveHighlightRange : 1; + bool autoHighlight : 1; + bool highlightUp : 1; + bool layoutScheduled : 1; + bool moving : 1; + bool flicking : 1; + QElapsedTimer lastPosTime; + QPointF lastPos; + qreal dragMargin; + qreal deceleration; + QDeclarativeTimeLine tl; + QDeclarativeTimeLineValueProxy<QSGPathViewPrivate> moveOffset; + int firstIndex; + int pathItems; + int requestedIndex; + QList<QSGItem *> items; + QList<QSGItem *> itemCache; + QDeclarativeGuard<QSGVisualModel> model; + QVariant modelVariant; + enum MovementReason { Other, SetIndex, Mouse }; + MovementReason moveReason; + enum MovementDirection { Shortest, Negative, Positive }; + MovementDirection moveDirection; + QDeclarativeOpenMetaObjectType *attType; + QDeclarativeComponent *highlightComponent; + QSGItem *highlightItem; + QDeclarativeTimeLineValueProxy<QSGPathViewPrivate> moveHighlight; + qreal highlightPosition; + qreal highlightRangeStart; + qreal highlightRangeEnd; + QSGPathView::HighlightRangeMode highlightRangeMode; + int highlightMoveDuration; + int modelCount; +}; + +QT_END_NAMESPACE + +#endif |