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Diffstat (limited to 'src/gui/opengl/qopengl2pexvertexarray.cpp')
| -rw-r--r-- | src/gui/opengl/qopengl2pexvertexarray.cpp | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/src/gui/opengl/qopengl2pexvertexarray.cpp b/src/gui/opengl/qopengl2pexvertexarray.cpp deleted file mode 100644 index 04781f63c7..0000000000 --- a/src/gui/opengl/qopengl2pexvertexarray.cpp +++ /dev/null @@ -1,173 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtGui 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qopengl2pexvertexarray_p.h" - -#include <private/qbezier_p.h> - -QT_BEGIN_NAMESPACE - -void QOpenGL2PEXVertexArray::clear() -{ - vertexArray.reset(); - vertexArrayStops.reset(); - boundingRectDirty = true; -} - - -QOpenGLRect QOpenGL2PEXVertexArray::boundingRect() const -{ - if (boundingRectDirty) - return QOpenGLRect(0.0, 0.0, 0.0, 0.0); - else - return QOpenGLRect(minX, minY, maxX, maxY); -} - -void QOpenGL2PEXVertexArray::addClosingLine(int index) -{ - QPointF point(vertexArray.at(index)); - if (point != QPointF(vertexArray.last())) - vertexArray.add(point); -} - -void QOpenGL2PEXVertexArray::addCentroid(const QVectorPath &path, int subPathIndex) -{ - const QPointF *const points = reinterpret_cast<const QPointF *>(path.points()); - const QPainterPath::ElementType *const elements = path.elements(); - - QPointF sum = points[subPathIndex]; - int count = 1; - - for (int i = subPathIndex + 1; i < path.elementCount() && (!elements || elements[i] != QPainterPath::MoveToElement); ++i) { - sum += points[i]; - ++count; - } - - const QPointF centroid = sum / qreal(count); - vertexArray.add(centroid); -} - -void QOpenGL2PEXVertexArray::addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline) -{ - const QPointF* const points = reinterpret_cast<const QPointF*>(path.points()); - const QPainterPath::ElementType* const elements = path.elements(); - - if (boundingRectDirty) { - minX = maxX = points[0].x(); - minY = maxY = points[0].y(); - boundingRectDirty = false; - } - - if (!outline && !path.isConvex()) - addCentroid(path, 0); - - int lastMoveTo = vertexArray.size(); - vertexArray.add(points[0]); // The first element is always a moveTo - - do { - if (!elements) { -// qDebug("QVectorPath has no elements"); - // If the path has a null elements pointer, the elements implicitly - // start with a moveTo (already added) and continue with lineTos: - for (int i=1; i<path.elementCount(); ++i) - lineToArray(points[i].x(), points[i].y()); - - break; - } -// qDebug("QVectorPath has element types"); - - for (int i=1; i<path.elementCount(); ++i) { - switch (elements[i]) { - case QPainterPath::MoveToElement: - if (!outline) - addClosingLine(lastMoveTo); -// qDebug("element[%d] is a MoveToElement", i); - vertexArrayStops.add(vertexArray.size()); - if (!outline) { - if (!path.isConvex()) addCentroid(path, i); - lastMoveTo = vertexArray.size(); - } - lineToArray(points[i].x(), points[i].y()); // Add the moveTo as a new vertex - break; - case QPainterPath::LineToElement: -// qDebug("element[%d] is a LineToElement", i); - lineToArray(points[i].x(), points[i].y()); - break; - case QPainterPath::CurveToElement: { - QBezier b = QBezier::fromPoints(*(((const QPointF *) points) + i - 1), - points[i], - points[i+1], - points[i+2]); - QRectF bounds = b.bounds(); - // threshold based on same algorithm as in qtriangulatingstroker.cpp - int threshold = qMin<float>(64, qMax(bounds.width(), bounds.height()) * 3.14f / (curveInverseScale * 6)); - if (threshold < 3) threshold = 3; - qreal one_over_threshold_minus_1 = qreal(1) / (threshold - 1); - for (int t=0; t<threshold; ++t) { - QPointF pt = b.pointAt(t * one_over_threshold_minus_1); - lineToArray(pt.x(), pt.y()); - } - i += 2; - break; } - default: - break; - } - } - } while (0); - - if (!outline) - addClosingLine(lastMoveTo); - vertexArrayStops.add(vertexArray.size()); -} - -void QOpenGL2PEXVertexArray::lineToArray(const GLfloat x, const GLfloat y) -{ - vertexArray.add(QOpenGLPoint(x, y)); - - if (x > maxX) - maxX = x; - else if (x < minX) - minX = x; - if (y > maxY) - maxY = y; - else if (y < minY) - minY = y; -} - -QT_END_NAMESPACE |