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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+/****************************************************************************
+**
+** 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 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() const {return QRectF(left, top, right-left, bottom-top);}
+};
+
+class QGL2PEXVertexArray
+{
+public:
+ QGL2PEXVertexArray() :
+ vertexArray(0), vertexArrayStops(0),
+ maxX(-2e10), maxY(-2e10), minX(2e10), minY(2e10),
+ boundingRectDirty(true)
+ { }
+
+ inline void addRect(const QRectF &rect)
+ {
+ qreal top = rect.top();
+ qreal left = rect.left();
+ qreal bottom = rect.bottom();
+ qreal right = rect.right();
+
+ vertexArray << QGLPoint(left, top)
+ << QGLPoint(right, top)
+ << QGLPoint(right, bottom)
+ << QGLPoint(right, bottom)
+ << QGLPoint(left, bottom)
+ << QGLPoint(left, top);
+ }
+
+ inline void addQuad(const QRectF &rect)
+ {
+ qreal top = rect.top();
+ qreal left = rect.left();
+ qreal bottom = rect.bottom();
+ qreal right = rect.right();
+
+ vertexArray << QGLPoint(left, top)
+ << QGLPoint(right, top)
+ << QGLPoint(left, bottom)
+ << QGLPoint(right, bottom);
+
+ }
+
+ inline void addVertex(const GLfloat x, const GLfloat y)
+ {
+ vertexArray.add(QGLPoint(x, y));
+ }
+
+ void addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline = true);
+ void clear();
+
+ QGLPoint* data() {return vertexArray.data();}
+ int *stops() const { return vertexArrayStops.data(); }
+ int stopCount() const { return vertexArrayStops.size(); }
+ QGLRect boundingRect() const;
+
+ int vertexCount() const { return vertexArray.size(); }
+
+ void lineToArray(const GLfloat x, const GLfloat y);
+
+private:
+ QDataBuffer<QGLPoint> vertexArray;
+ QDataBuffer<int> vertexArrayStops;
+
+ GLfloat maxX;
+ GLfloat maxY;
+ GLfloat minX;
+ GLfloat minY;
+ bool boundingRectDirty;
+ void addClosingLine(int index);
+ void addCentroid(const QVectorPath &path, int subPathIndex);
+};
+
+QT_END_NAMESPACE
+
+#endif