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/****************************************************************************
**
** 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.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSIMPLECANVASITEM_H
#define QSIMPLECANVASITEM_H
#include <qfxglobal.h>
#include <qsimplecanvas.h>
#include <QObject>
#include <QGraphicsItem>
class QPainter;
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QRect;
class QSimpleCanvas;
class QMouseEvent;
class QKeyEvent;
class QSimpleCanvasItemPrivate;
class QSimpleCanvasLayer;
class QPointF;
class QRectF;
class QGraphicsSceneHoverEvent;
class QSimpleCanvasFilter;
class GLTexture;
class QGLShaderProgram;
class Q_DECLARATIVE_EXPORT QSimpleCanvasItem : public QObject
{
Q_OBJECT
Q_CAST_INTERFACES(QGraphicsItem)
Q_DECLARE_PRIVATE(QSimpleCanvasItem)
Q_ENUMS(TransformOrigin)
Q_PROPERTY(TransformOrigin transformOrigin READ transformOrigin WRITE setTransformOrigin);
public:
enum ClipType { NoClip = 0x00,
ClipToHeight = 0x01,
ClipToWidth = 0x02,
ClipToRect = 0x03 };
enum Option { NoOption = 0x00000000,
MouseFilter = 0x00000001,
ChildMouseFilter = 0x00000002,
HoverEvents = 0x00000004,
MouseEvents = 0x00000008,
HasContents = 0x00000010,
SimpleItem = 0x00000020,
IsFocusPanel = 0x00000040,
IsFocusRealm = 0x00000080,
AcceptsInputMethods = 0x00000100};
Q_DECLARE_FLAGS(Options, Option);
QSimpleCanvasItem(QSimpleCanvasItem *parent=0);
virtual ~QSimpleCanvasItem();
operator QGraphicsItem *();
bool clip() const;
void setClip(bool);
ClipType clipType() const;
void setClipType(ClipType);
Options options() const;
void setOptions(Options, bool set = true);
Qt::MouseButtons acceptedMouseButtons() const;
void setAcceptedMouseButtons(Qt::MouseButtons buttons);
qreal x() const;
qreal y() const;
qreal z() const;
QPointF pos() const;
void setX(qreal);
void setY(qreal);
virtual void setZ(qreal);
void setPos(const QPointF &);
qreal width() const;
void setWidth(qreal);
void setImplicitWidth(qreal);
bool widthValid() const;
qreal height() const;
void setHeight(qreal);
void setImplicitHeight(qreal);
bool heightValid() const;
QPointF scenePos() const;
enum TransformOrigin {
TopLeft, TopCenter, TopRight,
MiddleLeft, Center, MiddleRight,
BottomLeft, BottomCenter, BottomRight
};
TransformOrigin transformOrigin() const;
void setTransformOrigin(TransformOrigin);
QPointF transformOriginPoint() const;
qreal scale() const;
virtual void setScale(qreal);
enum Flip { NoFlip = 0,
VerticalFlip = 0x01,
HorizontalFlip = 0x02,
VerticalAndHorizontalFlip = 0x03 };
Flip flip() const;
void setFlip(Flip);
qreal visible() const;
virtual void setVisible(qreal);
bool isVisible() const;
QSimpleCanvas *canvas() const;
QSimpleCanvasItem *parent() const;
void setParent(QSimpleCanvasItem *);
void stackUnder(QSimpleCanvasItem *);
void stackOver(QSimpleCanvasItem *);
void stackAt(int idx);
int indexForChild(QSimpleCanvasItem *);
QRect itemBoundingRect();
class GLPainter
{
public:
GLPainter(QSimpleCanvasItem *i) : item(i), activeOpacity(1) {}
QSimpleCanvasItem *item;
QSimpleCanvas::Matrix activeTransform;
qreal activeOpacity;
QRect sceneClipRect;
QGLShaderProgram *useTextureShader();
QGLShaderProgram *useColorShader(const QColor &);
void drawImage(const QPointF &, const GLTexture &);
void drawImage(const QRectF &, const GLTexture &);
private:
GLPainter(const GLPainter &);
GLPainter &operator=(const GLPainter &);
};
QRectF boundingRect() const;
virtual void paintContents(QPainter &);
virtual void paintGLContents(GLPainter &);
virtual uint glSimpleItemData(float *vertices, float *texVertices,
GLTexture **texture, uint count);
void update();
virtual QSimpleCanvasLayer *layer();
bool hasChildren() const;
const QList<QSimpleCanvasItem *> &children() const;
QPointF mapFromScene(const QPointF &) const;
QRectF mapFromScene(const QRectF &) const;
QPointF mapToScene(const QPointF &) const;
QRectF mapToScene(const QRectF &) const;
QSimpleCanvas::Matrix transform() const;
void setTransform(const QSimpleCanvas::Matrix &);
QSimpleCanvasFilter *filter() const;
void setFilter(QSimpleCanvasFilter *);
QSimpleCanvasItem *mouseGrabberItem() const;
void ungrabMouse();
void grabMouse();
virtual bool isFocusable() const;
void setFocusable(bool);
virtual bool hasFocus() const;
void setFocus(bool);
bool activeFocusPanel() const;
void setActiveFocusPanel(bool);
bool hasActiveFocus() const;
QSimpleCanvasItem *findFirstFocusChild() const;
QSimpleCanvasItem *findLastFocusChild() const;
static QSimpleCanvasItem *findPrevFocus(QSimpleCanvasItem *item);
static QSimpleCanvasItem *findNextFocus(QSimpleCanvasItem *item);
GLBasicShaders *basicShaders() const;
static QImage string(const QString &, const QColor & = Qt::black, const QFont & = QFont());
protected:
virtual void geometryChanged(const QRectF &newGeometry,
const QRectF &oldGeometry);
virtual void addChild(QSimpleCanvasItem *);
virtual void remChild(QSimpleCanvasItem *);
virtual void canvasChanged();
virtual void childrenChanged();
virtual void parentChanged(QSimpleCanvasItem *, QSimpleCanvasItem *);
virtual void focusChanged(bool);
virtual void activeFocusChanged(bool);
virtual bool eventFilter(QObject *, QEvent *);
public:
// Events
virtual bool mouseFilter(QGraphicsSceneMouseEvent *);
virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *);
virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *);
virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseUngrabEvent();
virtual void keyPressEvent(QKeyEvent *event);
virtual void keyReleaseEvent(QKeyEvent *event);
virtual void focusOutEvent(QFocusEvent *e);
virtual void focusInEvent(QFocusEvent *e);
virtual void activePanelInEvent();
virtual void activePanelOutEvent();
virtual void inputMethodEvent(QInputMethodEvent* event);
virtual QVariant inputMethodQuery(Qt::InputMethodQuery query) const;
private:
friend class QSimpleCanvas;
friend class QSimpleCanvasPrivate;
friend class QSimpleCanvasRootLayer;
friend class QSimpleCanvasItem::GLPainter;
friend class QSimpleCanvasFilter;
friend class QGraphicsQSimpleCanvasItem;
friend class QSimpleGraphicsItem;
friend class CanvasEGLWidget;
friend class QSimpleCanvasFilterPrivate;
public:
QSimpleCanvasItem(QSimpleCanvasItemPrivate &dd, QSimpleCanvasItem *parent);
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QSimpleCanvasItem::Options);
class QSimpleCanvasLayer : public QSimpleCanvasItem
{
public:
QSimpleCanvasLayer(QSimpleCanvasItem *parent);
virtual void addChild(QSimpleCanvasItem *);
virtual void addDirty(QSimpleCanvasItem *);
virtual void remDirty(QSimpleCanvasItem *);
virtual QSimpleCanvasLayer *layer();
private:
friend class QSimpleCanvas;
friend class QSimpleCanvasRootLayer;
QSimpleCanvasLayer();
};
#endif // _GFXCANVASITEM_H_
QT_END_NAMESPACE
QT_END_HEADER
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