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Diffstat (limited to 'src/quick/items/qquickcanvas.h')
| -rw-r--r-- | src/quick/items/qquickcanvas.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/quick/items/qquickcanvas.h b/src/quick/items/qquickcanvas.h new file mode 100644 index 0000000000..9ea73b087b --- /dev/null +++ b/src/quick/items/qquickcanvas.h @@ -0,0 +1,163 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 QQUICKCANVAS_H +#define QQUICKCANVAS_H + +#include <QtQuick/qtquickglobal.h> +#include <QtCore/qmetatype.h> +#include <QtGui/qopengl.h> +#include <QtGui/qwindow.h> +#include <QtGui/qevent.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +class QSGEngine; +class QQuickItem; +class QSGTexture; +class QInputMethodEvent; +class QQuickCanvasPrivate; +class QOpenGLFramebufferObject; +class QDeclarativeIncubationController; +class QInputMethodEvent; + +class Q_QUICK_EXPORT QQuickCanvas : public QWindow +{ + Q_OBJECT + Q_PRIVATE_PROPERTY(QQuickCanvas::d_func(), QDeclarativeListProperty<QObject> data READ data DESIGNABLE false) + Q_PROPERTY(QColor color READ clearColor WRITE setClearColor NOTIFY clearColorChanged) + Q_CLASSINFO("DefaultProperty", "data") + Q_DECLARE_PRIVATE(QQuickCanvas) +public: + enum CreateTextureOption { + TextureHasAlphaChannel = 0x0001, + TextureHasMipmaps = 0x0002, + TextureOwnsGLTexture = 0x0004 + }; + + Q_DECLARE_FLAGS(CreateTextureOptions, CreateTextureOption) + + QQuickCanvas(QWindow *parent = 0); + + virtual ~QQuickCanvas(); + + QQuickItem *rootItem() const; + QQuickItem *activeFocusItem() const; + + QQuickItem *mouseGrabberItem() const; + + bool sendEvent(QQuickItem *, QEvent *); + + QSGEngine *sceneGraphEngine() const; + + void setVSyncAnimations(bool enabled); + bool vsyncAnimations() const; + + QImage grabFrameBuffer(); + + void setRenderTarget(QOpenGLFramebufferObject *fbo); + QOpenGLFramebufferObject *renderTarget() const; + + QDeclarativeIncubationController *incubationController() const; + + // Scene graph specific functions + QSGTexture *createTextureFromImage(const QImage &image) const; + QSGTexture *createTextureFromId(uint id, const QSize &size, CreateTextureOptions options = CreateTextureOption(0)) const; + + void setClearBeforeRendering(bool enabled); + bool clearBeforeRendering() const; + + void setClearColor(const QColor &color); + QColor clearColor() const; + + QOpenGLContext *openglContext() const; + +Q_SIGNALS: + void frameSwapped(); + void sceneGraphInitialized(); + void beforeRendering(); + void afterRendering(); + void clearColorChanged(const QColor &); + +protected: + QQuickCanvas(QQuickCanvasPrivate &dd, QWindow *parent = 0); + + virtual void exposeEvent(QExposeEvent *); + virtual void resizeEvent(QResizeEvent *); + + virtual void showEvent(QShowEvent *); + virtual void hideEvent(QHideEvent *); + + virtual void focusInEvent(QFocusEvent *); + virtual void focusOutEvent(QFocusEvent *); + + virtual bool event(QEvent *); + virtual void keyPressEvent(QKeyEvent *); + virtual void keyReleaseEvent(QKeyEvent *); + virtual void mousePressEvent(QMouseEvent *); + virtual void mouseReleaseEvent(QMouseEvent *); + virtual void mouseDoubleClickEvent(QMouseEvent *); + virtual void mouseMoveEvent(QMouseEvent *); +#ifndef QT_NO_WHEELEVENT + virtual void wheelEvent(QWheelEvent *); +#endif + +private Q_SLOTS: + void maybeUpdate(); + void animationStarted(); + void animationStopped(); + +private: + friend class QQuickItem; + friend class QQuickCanvasRenderLoop; + Q_DISABLE_COPY(QQuickCanvas) +}; + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(QQuickCanvas *) + +QT_END_HEADER + +#endif // QQUICKCANVAS_H + |