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Diffstat (limited to 'src/quick/items/context2d/qquickcontext2d_p.h')
| -rw-r--r-- | src/quick/items/context2d/qquickcontext2d_p.h | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/src/quick/items/context2d/qquickcontext2d_p.h b/src/quick/items/context2d/qquickcontext2d_p.h new file mode 100644 index 0000000000..0f320d9a7f --- /dev/null +++ b/src/quick/items/context2d/qquickcontext2d_p.h @@ -0,0 +1,210 @@ +/**************************************************************************** +** +** 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 QQUICKCONTEXT2D_P_H +#define QQUICKCONTEXT2D_P_H + +#include <QtQuick/qtquickglobal.h> +#include <QtDeclarative/qdeclarative.h> +#include <QtDeclarative/qdeclarativecomponent.h> + +#include <QtGui/qpainter.h> +#include <QtGui/qpainterpath.h> +#include <QtCore/qstring.h> +#include <QtCore/qstack.h> +#include <private/qv8engine_p.h> + + + +#define QQUICKCONTEXT2D_DEBUG //enable this for just DEBUG purpose! + +#ifdef QQUICKCONTEXT2D_DEBUG +#include <QElapsedTimer> +#endif + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +class QQuickCanvasItem; +class QQuickContext2DCommandBuffer; +class QDeclarativePixmap; + +class Q_QUICK_EXPORT QQuickContext2D +{ +public: + enum TextBaseLineType { Alphabetic=0, Top, Middle, Bottom, Hanging}; + enum TextAlignType { Start=0, End, Left, Right, Center}; + enum PaintCommand { + Invalid = 0, + UpdateMatrix, + ClearRect, + FillRect, + StrokeRect, + Fill, + Stroke, + Clip, + UpdateBrush, + GlobalAlpha, + GlobalCompositeOperation, + StrokeStyle, + FillStyle, + LineWidth, + LineCap, + LineJoin, + MiterLimit, + ShadowOffsetX, + ShadowOffsetY, + ShadowBlur, + ShadowColor, + Font, + TextBaseline, + TextAlign, + FillText, + StrokeText, + DrawImage, + GetImageData + }; + + + struct State { + State() + : strokeStyle(QColor("#000000")) + , fillStyle(QColor("#000000")) + , fillPatternRepeatX(false) + , fillPatternRepeatY(false) + , strokePatternRepeatX(false) + , strokePatternRepeatY(false) + , fillRule(Qt::WindingFill) + , globalAlpha(1.0) + , lineWidth(1) + , lineCap(Qt::FlatCap) + , lineJoin(Qt::MiterJoin) + , miterLimit(10) + , shadowOffsetX(0) + , shadowOffsetY(0) + , shadowBlur(0) + , shadowColor(qRgba(0, 0, 0, 0)) + , globalCompositeOperation(QPainter::CompositionMode_SourceOver) + , font(QFont(QLatin1String("sans-serif"), 10)) + , textAlign(QQuickContext2D::Start) + , textBaseline(QQuickContext2D::Alphabetic) + { + } + + QTransform matrix; + QPainterPath clipPath; + QBrush strokeStyle; + QBrush fillStyle; + bool fillPatternRepeatX:1; + bool fillPatternRepeatY:1; + bool strokePatternRepeatX:1; + bool strokePatternRepeatY:1; + Qt::FillRule fillRule; + qreal globalAlpha; + qreal lineWidth; + Qt::PenCapStyle lineCap; + Qt::PenJoinStyle lineJoin; + qreal miterLimit; + qreal shadowOffsetX; + qreal shadowOffsetY; + qreal shadowBlur; + QColor shadowColor; + QPainter::CompositionMode globalCompositeOperation; + QFont font; + QQuickContext2D::TextAlignType textAlign; + QQuickContext2D::TextBaseLineType textBaseline; + }; + + QQuickContext2D(QQuickCanvasItem* item); + ~QQuickContext2D(); + + inline QQuickCanvasItem* canvas() const {return m_canvas;} + inline QQuickContext2DCommandBuffer* buffer() const {return m_buffer;} + + v8::Handle<v8::Object> v8value() const; + void setV8Engine(QV8Engine *eng); + void popState(); + void pushState(); + void reset(); + + // path API + void beginPath(); + void closePath(); + void moveTo(qreal x, qreal y); + void lineTo(qreal x, qreal y); + void quadraticCurveTo(qreal cpx, qreal cpy, qreal x, qreal y); + void bezierCurveTo(qreal cp1x, qreal cp1y, + qreal cp2x, qreal cp2y, qreal x, qreal y); + void arcTo(qreal x1, qreal y1, qreal x2, qreal y2, qreal radius); + void rect(qreal x, qreal y, qreal w, qreal h); + void roundedRect(qreal x, qreal y,qreal w, qreal h, qreal xr, qreal yr); + void ellipse(qreal x, qreal y,qreal w, qreal h); + void text(const QString& str, qreal x, qreal y); + void arc(qreal x, qreal y, qreal radius, + qreal startAngle, qreal endAngle, + bool anticlockwise, bool transform=true); + void addArcTo(const QPointF& p1, const QPointF& p2, float radius); + + bool isPointInPath(qreal x, qreal y) const; + + QPainterPath createTextGlyphs(qreal x, qreal y, const QString& text); + QImage createImage(const QUrl& url); + + State state; + QStack<QQuickContext2D::State> m_stateStack; + QQuickCanvasItem* m_canvas; + QQuickContext2DCommandBuffer* m_buffer; + QPainterPath m_path; + v8::Local<v8::Value> m_fillStyle; + v8::Local<v8::Value> m_strokeStyle; + v8::Handle<v8::Value> m_v8path; + QV8Engine *m_v8engine; + v8::Persistent<v8::Object> m_v8value; +}; + + +QT_END_NAMESPACE +QML_DECLARE_TYPE(QQuickContext2D) + +QT_END_HEADER + +#endif // QQUICKCONTEXT2D_P_H |