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Diffstat (limited to 'src/quick/items/qquickpathview_p_p.h')
| -rw-r--r-- | src/quick/items/qquickpathview_p_p.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/quick/items/qquickpathview_p_p.h b/src/quick/items/qquickpathview_p_p.h new file mode 100644 index 0000000000..9bf329dab5 --- /dev/null +++ b/src/quick/items/qquickpathview_p_p.h @@ -0,0 +1,199 @@ +// 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQUICKPATHVIEW_P_P_H +#define QQUICKPATHVIEW_P_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 "qquickpathview_p.h" +#include "qquickitem_p.h" +#include "qquickvisualdatamodel_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> +#include <private/qdeclarativetimeline_p_p.h> + +QT_BEGIN_NAMESPACE + +class QDeclarativeOpenMetaObjectType; +class QQuickPathViewAttached; +class QQuickPathViewPrivate : public QQuickItemPrivate, public QQuickItemChangeListener +{ + Q_DECLARE_PUBLIC(QQuickPathView) + +public: + QQuickPathViewPrivate() + : 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), requestedOnPath(false), inRequest(false) + , dragMargin(0), deceleration(100) + , moveOffset(this, &QQuickPathViewPrivate::setAdjustedOffset) + , firstIndex(-1), pathItems(-1), requestedIndex(-1), requestedZ(0) + , moveReason(Other), moveDirection(Shortest), attType(0), highlightComponent(0), highlightItem(0) + , moveHighlight(this, &QQuickPathViewPrivate::setHighlightPosition) + , highlightPosition(0) + , highlightRangeStart(0), highlightRangeEnd(0) + , highlightRangeMode(QQuickPathView::StrictlyEnforceRange) + , highlightMoveDuration(300), modelCount(0) + { + } + + void init(); + + void itemGeometryChanged(QQuickItem *item, const QRectF &newGeometry, const QRectF &oldGeometry) { + if ((newGeometry.size() != oldGeometry.size()) + && (!highlightItem || item != highlightItem)) { + if (QQuickPathViewAttached *att = attached(item)) + att->m_percent = -1; + scheduleLayout(); + } + } + + void scheduleLayout() { + Q_Q(QQuickPathView); + if (!layoutScheduled) { + layoutScheduled = true; + q->polish(); + } + } + + QQuickItem *getItem(int modelIndex, qreal z = 0, bool onPath=true); + void releaseItem(QQuickItem *item); + QQuickPathViewAttached *attached(QQuickItem *item); + QDeclarativeOpenMetaObjectType *attachedType(); + 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(QMouseEvent *event); + void handleMouseMoveEvent(QMouseEvent *event); + void handleMouseReleaseEvent(QMouseEvent *); + + int calcCurrentIndex(); + void createCurrentItem(); + void updateCurrent(); + static void fixOffsetCallback(void*); + void fixOffset(); + void setOffset(qreal offset); + void setAdjustedOffset(qreal offset); + void regenerate(); + void updateItem(QQuickItem *, qreal); + void snapToCurrent(); + QPointF pointNear(const QPointF &point, qreal *nearPercent=0) const; + + QDeclarativePath *path; + int currentIndex; + QDeclarativeGuard<QQuickItem> 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; + bool requestedOnPath : 1; + bool inRequest : 1; + QElapsedTimer lastPosTime; + QPointF lastPos; + qreal dragMargin; + qreal deceleration; + QDeclarativeTimeLine tl; + QDeclarativeTimeLineValueProxy<QQuickPathViewPrivate> moveOffset; + int firstIndex; + int pathItems; + int requestedIndex; + qreal requestedZ; + QList<QQuickItem *> items; + QList<QQuickItem *> itemCache; + QDeclarativeGuard<QQuickVisualModel> model; + QVariant modelVariant; + enum MovementReason { Other, SetIndex, Mouse }; + MovementReason moveReason; + enum MovementDirection { Shortest, Negative, Positive }; + MovementDirection moveDirection; + QDeclarativeOpenMetaObjectType *attType; + QDeclarativeComponent *highlightComponent; + QQuickItem *highlightItem; + QDeclarativeTimeLineValueProxy<QQuickPathViewPrivate> moveHighlight; + qreal highlightPosition; + qreal highlightRangeStart; + qreal highlightRangeEnd; + QQuickPathView::HighlightRangeMode highlightRangeMode; + int highlightMoveDuration; + int modelCount; +}; + +QT_END_NAMESPACE + +#endif |