src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,134 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtOpenGL 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+
+#ifndef QGL2PEXVERTEXARRAY_P_H
+#define QGL2PEXVERTEXARRAY_P_H
+
+#include <QRectF>
+
+#include <private/qdatabuffer_p.h>
+#include <private/qvectorpath_p.h>
+#include <private/qgl_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QGLPoint
+{
+public:
+    QGLPoint(GLfloat new_x, GLfloat new_y) :
+        x(new_x), y(new_y) {};
+
+    QGLPoint(const QPointF &p) :
+        x(p.x()), y(p.y()) {};
+
+    QGLPoint(const QPointF* p) :
+        x(p->x()), y(p->y()) {};
+
+    GLfloat x;
+    GLfloat y;
+
+    operator QPointF() {return QPointF(x,y);}
+    operator QPointF() const {return QPointF(x,y);}
+};
+
+struct QGLRect
+{
+    QGLRect(const QRectF &r)
+        :  left(r.left()), top(r.top()), right(r.right()), bottom(r.bottom()) {}
+
+    QGLRect(GLfloat l, GLfloat t, GLfloat r, GLfloat b)
+        : left(l), top(t), right(r), bottom(b) {}
+
+    GLfloat left;
+    GLfloat top;
+    GLfloat right;
+    GLfloat bottom;
+
+    operator QRectF() {return QRectF(left, top, right-left, bottom-top);}
+};
+
+class QGL2PEXVertexArray
+{
+public:
+    QGL2PEXVertexArray() :
+        maxX(-2e10), maxY(-2e10), minX(2e10), minY(2e10),
+        boundingRectDirty(true) {}
+
+    void addRect(const QRectF &rect);
+    void addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline = true);
+    void clear();
+
+    QGLPoint*        data() {return vertexArray.data();}
+    QVector<int>&   stops() {return vertexArrayStops;}
+    QGLRect         boundingRect() const;
+
+    void lineToArray(const GLfloat x, const GLfloat y);
+
+private:
+    QDataBuffer<QGLPoint> vertexArray;
+    QVector<int>          vertexArrayStops;
+
+    GLfloat     maxX;
+    GLfloat     maxY;
+    GLfloat     minX;
+    GLfloat     minY;
+    bool        boundingRectDirty;
+
+    inline void curveToArray(const QGLPoint &cp1, const QGLPoint &cp2, const QGLPoint &ep, GLfloat inverseScale);
+
+    void addClosingLine(int index);
+    void addCentroid(const QVectorPath &path, int subPathIndex);
+};
+
+QT_END_NAMESPACE
+
+#endif