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Diffstat (limited to 'src/opengl/qopengl2pexvertexarray_p.h')
| -rw-r--r-- | src/opengl/qopengl2pexvertexarray_p.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/opengl/qopengl2pexvertexarray_p.h b/src/opengl/qopengl2pexvertexarray_p.h new file mode 100644 index 0000000000..3ef26e908d --- /dev/null +++ b/src/opengl/qopengl2pexvertexarray_p.h @@ -0,0 +1,167 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtOpenGL module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// 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 QOPENGL2PEXVERTEXARRAY_P_H +#define QOPENGL2PEXVERTEXARRAY_P_H + +#include <QRectF> + +#include <private/qdatabuffer_p.h> +#include <private/qvectorpath_p.h> +#include <private/qopenglcontext_p.h> + +QT_BEGIN_NAMESPACE + +class QOpenGLPoint +{ +public: + QOpenGLPoint(GLfloat new_x, GLfloat new_y) : + x(new_x), y(new_y) {}; + + QOpenGLPoint(const QPointF &p) : + x(p.x()), y(p.y()) {}; + + QOpenGLPoint(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 QOpenGLRect +{ + QOpenGLRect(const QRectF &r) + : left(r.left()), top(r.top()), right(r.right()), bottom(r.bottom()) {} + + QOpenGLRect(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 QOpenGL2PEXVertexArray +{ +public: + QOpenGL2PEXVertexArray() : + 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 << QOpenGLPoint(left, top) + << QOpenGLPoint(right, top) + << QOpenGLPoint(right, bottom) + << QOpenGLPoint(right, bottom) + << QOpenGLPoint(left, bottom) + << QOpenGLPoint(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 << QOpenGLPoint(left, top) + << QOpenGLPoint(right, top) + << QOpenGLPoint(left, bottom) + << QOpenGLPoint(right, bottom); + + } + + inline void addVertex(const GLfloat x, const GLfloat y) + { + vertexArray.add(QOpenGLPoint(x, y)); + } + + void addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline = true); + void clear(); + + QOpenGLPoint* data() {return vertexArray.data();} + int *stops() const { return vertexArrayStops.data(); } + int stopCount() const { return vertexArrayStops.size(); } + QOpenGLRect boundingRect() const; + + int vertexCount() const { return vertexArray.size(); } + + void lineToArray(const GLfloat x, const GLfloat y); + +private: + QDataBuffer<QOpenGLPoint> 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 |