diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativeitem_p.h')
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativeitem_p.h | 624 |
1 files changed, 624 insertions, 0 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativeitem_p.h b/src/declarative/graphicsitems/qdeclarativeitem_p.h new file mode 100644 index 0000000000..dae581c94f --- /dev/null +++ b/src/declarative/graphicsitems/qdeclarativeitem_p.h @@ -0,0 +1,624 @@ +/**************************************************************************** +** +** 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 QDECLARATIVEITEM_P_H +#define QDECLARATIVEITEM_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 "qdeclarativeitem.h" + +#include "private/qdeclarativeanchors_p.h" +#include "private/qdeclarativeanchors_p_p.h" +#include "private/qdeclarativeitemchangelistener_p.h" +#include <private/qpodvector_p.h> + +#include <private/qdeclarativestate_p.h> +#include <private/qdeclarativenullablevalue_p_p.h> +#include <private/qdeclarativenotifier_p.h> +#include <private/qdeclarativeglobal_p.h> + +#include <qdeclarative.h> +#include <qdeclarativecontext.h> + +#include <QtCore/qlist.h> +#include <QtCore/qdebug.h> + +#include <private/qgraphicsitem_p.h> + +QT_BEGIN_NAMESPACE + +class QNetworkReply; +class QDeclarativeItemKeyFilter; +class QDeclarativeLayoutMirroringAttached; + +//### merge into private? +class QDeclarativeContents : public QObject, public QDeclarativeItemChangeListener +{ + Q_OBJECT +public: + QDeclarativeContents(QDeclarativeItem *item); + ~QDeclarativeContents(); + + QRectF rectF() const; + + void childRemoved(QDeclarativeItem *item); + void childAdded(QDeclarativeItem *item); + + void calcGeometry() { calcWidth(); calcHeight(); } + void complete(); + +Q_SIGNALS: + void rectChanged(QRectF); + +protected: + void itemGeometryChanged(QDeclarativeItem *item, const QRectF &newGeometry, const QRectF &oldGeometry); + void itemDestroyed(QDeclarativeItem *item); + //void itemVisibilityChanged(QDeclarativeItem *item) + +private: + void calcHeight(QDeclarativeItem *changed = 0); + void calcWidth(QDeclarativeItem *changed = 0); + + QDeclarativeItem *m_item; + qreal m_x; + qreal m_y; + qreal m_width; + qreal m_height; +}; + +class Q_DECLARATIVE_EXPORT QDeclarativeItemPrivate : public QGraphicsItemPrivate +{ + Q_DECLARE_PUBLIC(QDeclarativeItem) + +public: + QDeclarativeItemPrivate() + : _anchors(0), _contents(0), + baselineOffset(0), + _anchorLines(0), + _stateGroup(0), origin(QDeclarativeItem::Center), + widthValid(false), heightValid(false), + componentComplete(true), keepMouse(false), + smooth(false), transformOriginDirty(true), doneEventPreHandler(false), + inheritedLayoutMirror(false), effectiveLayoutMirror(false), isMirrorImplicit(true), + inheritMirrorFromParent(false), inheritMirrorFromItem(false), keyHandler(0), + mWidth(0), mHeight(0), mImplicitWidth(0), mImplicitHeight(0), attachedLayoutDirection(0), hadSubFocusItem(false) + { + QGraphicsItemPrivate::acceptedMouseButtons = 0; + isDeclarativeItem = 1; + QGraphicsItemPrivate::flags = QGraphicsItem::GraphicsItemFlags( + QGraphicsItem::ItemHasNoContents + | QGraphicsItem::ItemIsFocusable + | QGraphicsItem::ItemNegativeZStacksBehindParent); + } + + void init(QDeclarativeItem *parent) + { + Q_Q(QDeclarativeItem); + if (parent) { + QDeclarative_setParent_noEvent(q, parent); + q->setParentItem(parent); + QDeclarativeItemPrivate *parentPrivate = QDeclarativeItemPrivate::get(parent); + setImplicitLayoutMirror(parentPrivate->inheritedLayoutMirror, parentPrivate->inheritMirrorFromParent); + } + baselineOffset.invalidate(); + mouseSetsFocus = false; + } + + bool isMirrored() const { + return effectiveLayoutMirror; + } + + // Private Properties + qreal width() const; + void setWidth(qreal); + void resetWidth(); + + qreal height() const; + void setHeight(qreal); + void resetHeight(); + + virtual qreal implicitWidth() const; + virtual qreal implicitHeight() const; + virtual void implicitWidthChanged(); + virtual void implicitHeightChanged(); + + void resolveLayoutMirror(); + void setImplicitLayoutMirror(bool mirror, bool inherit); + void setLayoutMirror(bool mirror); + + QDeclarativeListProperty<QObject> data(); + QDeclarativeListProperty<QObject> resources(); + + QDeclarativeListProperty<QDeclarativeState> states(); + QDeclarativeListProperty<QDeclarativeTransition> transitions(); + + QString state() const; + void setState(const QString &); + + QDeclarativeAnchorLine left() const; + QDeclarativeAnchorLine right() const; + QDeclarativeAnchorLine horizontalCenter() const; + QDeclarativeAnchorLine top() const; + QDeclarativeAnchorLine bottom() const; + QDeclarativeAnchorLine verticalCenter() const; + QDeclarativeAnchorLine baseline() const; + + // data property + static void data_append(QDeclarativeListProperty<QObject> *, QObject *); + static int data_count(QDeclarativeListProperty<QObject> *); + static QObject *data_at(QDeclarativeListProperty<QObject> *, int); + static void data_clear(QDeclarativeListProperty<QObject> *); + + // resources property + static QObject *resources_at(QDeclarativeListProperty<QObject> *, int); + static void resources_append(QDeclarativeListProperty<QObject> *, QObject *); + static int resources_count(QDeclarativeListProperty<QObject> *); + static void resources_clear(QDeclarativeListProperty<QObject> *); + + // transform property + static int transform_count(QDeclarativeListProperty<QGraphicsTransform> *list); + static void transform_append(QDeclarativeListProperty<QGraphicsTransform> *list, QGraphicsTransform *); + static QGraphicsTransform *transform_at(QDeclarativeListProperty<QGraphicsTransform> *list, int); + static void transform_clear(QDeclarativeListProperty<QGraphicsTransform> *list); + + static QDeclarativeItemPrivate* get(QDeclarativeItem *item) + { + return item->d_func(); + } + + // Accelerated property accessors + QDeclarativeNotifier parentNotifier; + static void parentProperty(QObject *o, void *rv, QDeclarativeNotifierEndpoint *e); + + QDeclarativeAnchors *anchors() { + if (!_anchors) { + Q_Q(QDeclarativeItem); + _anchors = new QDeclarativeAnchors(q); + if (!componentComplete) + _anchors->classBegin(); + } + return _anchors; + } + QDeclarativeAnchors *_anchors; + QDeclarativeContents *_contents; + + QDeclarativeNullableValue<qreal> baselineOffset; + + struct AnchorLines { + AnchorLines(QGraphicsObject *); + QDeclarativeAnchorLine left; + QDeclarativeAnchorLine right; + QDeclarativeAnchorLine hCenter; + QDeclarativeAnchorLine top; + QDeclarativeAnchorLine bottom; + QDeclarativeAnchorLine vCenter; + QDeclarativeAnchorLine baseline; + }; + mutable AnchorLines *_anchorLines; + AnchorLines *anchorLines() const { + Q_Q(const QDeclarativeItem); + if (!_anchorLines) _anchorLines = + new AnchorLines(const_cast<QDeclarativeItem *>(q)); + return _anchorLines; + } + + enum ChangeType { + Geometry = 0x01, + SiblingOrder = 0x02, + Visibility = 0x04, + Opacity = 0x08, + Destroyed = 0x10 + }; + + Q_DECLARE_FLAGS(ChangeTypes, ChangeType) + + struct ChangeListener { + ChangeListener(QDeclarativeItemChangeListener *l, QDeclarativeItemPrivate::ChangeTypes t) : listener(l), types(t) {} + QDeclarativeItemChangeListener *listener; + QDeclarativeItemPrivate::ChangeTypes types; + bool operator==(const ChangeListener &other) const { return listener == other.listener && types == other.types; } + }; + + void addItemChangeListener(QDeclarativeItemChangeListener *listener, ChangeTypes types) { + changeListeners.append(ChangeListener(listener, types)); + } + void removeItemChangeListener(QDeclarativeItemChangeListener *, ChangeTypes types); + QPODVector<ChangeListener,4> changeListeners; + + QDeclarativeStateGroup *_states(); + QDeclarativeStateGroup *_stateGroup; + + QDeclarativeItem::TransformOrigin origin:5; + bool widthValid:1; + bool heightValid:1; + bool componentComplete:1; + bool keepMouse:1; + bool smooth:1; + bool transformOriginDirty : 1; + bool doneEventPreHandler : 1; + bool inheritedLayoutMirror:1; + bool effectiveLayoutMirror:1; + bool isMirrorImplicit:1; + bool inheritMirrorFromParent:1; + bool inheritMirrorFromItem:1; + + QDeclarativeItemKeyFilter *keyHandler; + + qreal mWidth; + qreal mHeight; + qreal mImplicitWidth; + qreal mImplicitHeight; + + QDeclarativeLayoutMirroringAttached* attachedLayoutDirection; + + bool hadSubFocusItem; + + QPointF computeTransformOrigin() const; + + virtual void setPosHelper(const QPointF &pos) + { + Q_Q(QDeclarativeItem); + QRectF oldGeometry(this->pos.x(), this->pos.y(), mWidth, mHeight); + QGraphicsItemPrivate::setPosHelper(pos); + q->geometryChanged(QRectF(this->pos.x(), this->pos.y(), mWidth, mHeight), oldGeometry); + } + + // Reimplemented from QGraphicsItemPrivate + virtual void subFocusItemChange() + { + bool hasSubFocusItem = subFocusItem != 0; + if (((flags & QGraphicsItem::ItemIsFocusScope) || !parent) && hasSubFocusItem != hadSubFocusItem) + emit q_func()->activeFocusChanged(hasSubFocusItem); + //see also QDeclarativeItemPrivate::focusChanged + hadSubFocusItem = hasSubFocusItem; + } + + // Reimplemented from QGraphicsItemPrivate + virtual void focusScopeItemChange(bool isSubFocusItem) + { + emit q_func()->focusChanged(isSubFocusItem); + } + + + // Reimplemented from QGraphicsItemPrivate + virtual void siblingOrderChange() + { + Q_Q(QDeclarativeItem); + for(int ii = 0; ii < changeListeners.count(); ++ii) { + const QDeclarativeItemPrivate::ChangeListener &change = changeListeners.at(ii); + if (change.types & QDeclarativeItemPrivate::SiblingOrder) { + change.listener->itemSiblingOrderChanged(q); + } + } + } + + // Reimplemented from QGraphicsItemPrivate + virtual void transformChanged(); + + virtual void focusChanged(bool); + + virtual void mirrorChange() {}; + + static qint64 consistentTime; + static void setConsistentTime(qint64 t); + static void start(QElapsedTimer &); + static qint64 elapsed(QElapsedTimer &); + static qint64 restart(QElapsedTimer &); +}; + +/* + Key filters can be installed on a QDeclarativeItem, but not removed. Currently they + are only used by attached objects (which are only destroyed on Item + destruction), so this isn't a problem. If in future this becomes any form + of public API, they will have to support removal too. +*/ +class QDeclarativeItemKeyFilter +{ +public: + QDeclarativeItemKeyFilter(QDeclarativeItem * = 0); + virtual ~QDeclarativeItemKeyFilter(); + + virtual void keyPressed(QKeyEvent *event, bool post); + virtual void keyReleased(QKeyEvent *event, bool post); + virtual void inputMethodEvent(QInputMethodEvent *event, bool post); + virtual QVariant inputMethodQuery(Qt::InputMethodQuery query) const; + virtual void componentComplete(); + + bool m_processPost; + +private: + QDeclarativeItemKeyFilter *m_next; +}; + +class QDeclarativeKeyNavigationAttachedPrivate : public QObjectPrivate +{ +public: + QDeclarativeKeyNavigationAttachedPrivate() + : QObjectPrivate(), left(0), right(0), up(0), down(0), tab(0), backtab(0) {} + + QDeclarativeItem *left; + QDeclarativeItem *right; + QDeclarativeItem *up; + QDeclarativeItem *down; + QDeclarativeItem *tab; + QDeclarativeItem *backtab; +}; + +class QDeclarativeKeyNavigationAttached : public QObject, public QDeclarativeItemKeyFilter +{ + Q_OBJECT + Q_DECLARE_PRIVATE(QDeclarativeKeyNavigationAttached) + + Q_PROPERTY(QDeclarativeItem *left READ left WRITE setLeft NOTIFY leftChanged) + Q_PROPERTY(QDeclarativeItem *right READ right WRITE setRight NOTIFY rightChanged) + Q_PROPERTY(QDeclarativeItem *up READ up WRITE setUp NOTIFY upChanged) + Q_PROPERTY(QDeclarativeItem *down READ down WRITE setDown NOTIFY downChanged) + Q_PROPERTY(QDeclarativeItem *tab READ tab WRITE setTab NOTIFY tabChanged) + Q_PROPERTY(QDeclarativeItem *backtab READ backtab WRITE setBacktab NOTIFY backtabChanged) + Q_PROPERTY(Priority priority READ priority WRITE setPriority NOTIFY priorityChanged) + + Q_ENUMS(Priority) + +public: + QDeclarativeKeyNavigationAttached(QObject * = 0); + + QDeclarativeItem *left() const; + void setLeft(QDeclarativeItem *); + QDeclarativeItem *right() const; + void setRight(QDeclarativeItem *); + QDeclarativeItem *up() const; + void setUp(QDeclarativeItem *); + QDeclarativeItem *down() const; + void setDown(QDeclarativeItem *); + QDeclarativeItem *tab() const; + void setTab(QDeclarativeItem *); + QDeclarativeItem *backtab() const; + void setBacktab(QDeclarativeItem *); + + enum Priority { BeforeItem, AfterItem }; + Priority priority() const; + void setPriority(Priority); + + static QDeclarativeKeyNavigationAttached *qmlAttachedProperties(QObject *); + +Q_SIGNALS: + void leftChanged(); + void rightChanged(); + void upChanged(); + void downChanged(); + void tabChanged(); + void backtabChanged(); + void priorityChanged(); + +private: + virtual void keyPressed(QKeyEvent *event, bool post); + virtual void keyReleased(QKeyEvent *event, bool post); + void setFocusNavigation(QDeclarativeItem *currentItem, const char *dir); +}; + +class QDeclarativeLayoutMirroringAttached : public QObject +{ + Q_OBJECT + Q_PROPERTY(bool enabled READ enabled WRITE setEnabled RESET resetEnabled NOTIFY enabledChanged) + Q_PROPERTY(bool childrenInherit READ childrenInherit WRITE setChildrenInherit NOTIFY childrenInheritChanged) + +public: + explicit QDeclarativeLayoutMirroringAttached(QObject *parent = 0); + + bool enabled() const; + void setEnabled(bool); + void resetEnabled(); + + bool childrenInherit() const; + void setChildrenInherit(bool); + + static QDeclarativeLayoutMirroringAttached *qmlAttachedProperties(QObject *); +Q_SIGNALS: + void enabledChanged(); + void childrenInheritChanged(); +private: + friend class QDeclarativeItemPrivate; + QDeclarativeItemPrivate *itemPrivate; +}; + +class QDeclarativeKeysAttachedPrivate : public QObjectPrivate +{ +public: + QDeclarativeKeysAttachedPrivate() + : QObjectPrivate(), inPress(false), inRelease(false) + , inIM(false), enabled(true), imeItem(0), item(0) + {} + + bool isConnected(const char *signalName); + + QGraphicsItem *finalFocusProxy(QGraphicsItem *item) const + { + QGraphicsItem *fp; + while ((fp = item->focusProxy())) + item = fp; + return item; + } + + //loop detection + bool inPress:1; + bool inRelease:1; + bool inIM:1; + + bool enabled : 1; + + QGraphicsItem *imeItem; + QList<QDeclarativeItem *> targets; + QDeclarativeItem *item; +}; + +class QDeclarativeKeysAttached : public QObject, public QDeclarativeItemKeyFilter +{ + Q_OBJECT + Q_DECLARE_PRIVATE(QDeclarativeKeysAttached) + + Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged) + Q_PROPERTY(QDeclarativeListProperty<QDeclarativeItem> forwardTo READ forwardTo) + Q_PROPERTY(Priority priority READ priority WRITE setPriority NOTIFY priorityChanged) + + Q_ENUMS(Priority) + +public: + QDeclarativeKeysAttached(QObject *parent=0); + ~QDeclarativeKeysAttached(); + + bool enabled() const { Q_D(const QDeclarativeKeysAttached); return d->enabled; } + void setEnabled(bool enabled) { + Q_D(QDeclarativeKeysAttached); + if (enabled != d->enabled) { + d->enabled = enabled; + emit enabledChanged(); + } + } + + enum Priority { BeforeItem, AfterItem}; + Priority priority() const; + void setPriority(Priority); + + QDeclarativeListProperty<QDeclarativeItem> forwardTo() { + Q_D(QDeclarativeKeysAttached); + return QDeclarativeListProperty<QDeclarativeItem>(this, d->targets); + } + + virtual void componentComplete(); + + static QDeclarativeKeysAttached *qmlAttachedProperties(QObject *); + +Q_SIGNALS: + void enabledChanged(); + void priorityChanged(); + void pressed(QDeclarativeKeyEvent *event); + void released(QDeclarativeKeyEvent *event); + void digit0Pressed(QDeclarativeKeyEvent *event); + void digit1Pressed(QDeclarativeKeyEvent *event); + void digit2Pressed(QDeclarativeKeyEvent *event); + void digit3Pressed(QDeclarativeKeyEvent *event); + void digit4Pressed(QDeclarativeKeyEvent *event); + void digit5Pressed(QDeclarativeKeyEvent *event); + void digit6Pressed(QDeclarativeKeyEvent *event); + void digit7Pressed(QDeclarativeKeyEvent *event); + void digit8Pressed(QDeclarativeKeyEvent *event); + void digit9Pressed(QDeclarativeKeyEvent *event); + + void leftPressed(QDeclarativeKeyEvent *event); + void rightPressed(QDeclarativeKeyEvent *event); + void upPressed(QDeclarativeKeyEvent *event); + void downPressed(QDeclarativeKeyEvent *event); + void tabPressed(QDeclarativeKeyEvent *event); + void backtabPressed(QDeclarativeKeyEvent *event); + + void asteriskPressed(QDeclarativeKeyEvent *event); + void numberSignPressed(QDeclarativeKeyEvent *event); + void escapePressed(QDeclarativeKeyEvent *event); + void returnPressed(QDeclarativeKeyEvent *event); + void enterPressed(QDeclarativeKeyEvent *event); + void deletePressed(QDeclarativeKeyEvent *event); + void spacePressed(QDeclarativeKeyEvent *event); + void backPressed(QDeclarativeKeyEvent *event); + void cancelPressed(QDeclarativeKeyEvent *event); + void selectPressed(QDeclarativeKeyEvent *event); + void yesPressed(QDeclarativeKeyEvent *event); + void noPressed(QDeclarativeKeyEvent *event); + void context1Pressed(QDeclarativeKeyEvent *event); + void context2Pressed(QDeclarativeKeyEvent *event); + void context3Pressed(QDeclarativeKeyEvent *event); + void context4Pressed(QDeclarativeKeyEvent *event); + void callPressed(QDeclarativeKeyEvent *event); + void hangupPressed(QDeclarativeKeyEvent *event); + void flipPressed(QDeclarativeKeyEvent *event); + void menuPressed(QDeclarativeKeyEvent *event); + void volumeUpPressed(QDeclarativeKeyEvent *event); + void volumeDownPressed(QDeclarativeKeyEvent *event); + +private: + virtual void keyPressed(QKeyEvent *event, bool post); + virtual void keyReleased(QKeyEvent *event, bool post); + virtual void inputMethodEvent(QInputMethodEvent *, bool post); + virtual QVariant inputMethodQuery(Qt::InputMethodQuery query) const; + + const QByteArray keyToSignal(int key) { + QByteArray keySignal; + if (key >= Qt::Key_0 && key <= Qt::Key_9) { + keySignal = "digit0Pressed"; + keySignal[5] = '0' + (key - Qt::Key_0); + } else { + int i = 0; + while (sigMap[i].key && sigMap[i].key != key) + ++i; + keySignal = sigMap[i].sig; + } + return keySignal; + } + + struct SigMap { + int key; + const char *sig; + }; + + static const SigMap sigMap[]; +}; + +Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativeItemPrivate::ChangeTypes); + +QT_END_NAMESPACE + +QML_DECLARE_TYPE(QDeclarativeKeysAttached) +QML_DECLARE_TYPEINFO(QDeclarativeKeysAttached, QML_HAS_ATTACHED_PROPERTIES) +QML_DECLARE_TYPE(QDeclarativeKeyNavigationAttached) +QML_DECLARE_TYPEINFO(QDeclarativeKeyNavigationAttached, QML_HAS_ATTACHED_PROPERTIES) +QML_DECLARE_TYPE(QDeclarativeLayoutMirroringAttached) +QML_DECLARE_TYPEINFO(QDeclarativeLayoutMirroringAttached, QML_HAS_ATTACHED_PROPERTIES) + +#endif // QDECLARATIVEITEM_P_H |