diff -r 000000000000 -r 1918ee327afb src/gui/painting/qoutlinemapper.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/gui/painting/qoutlinemapper.cpp Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,390 @@ +/**************************************************************************** +** +** 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 QtGui 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qoutlinemapper_p.h" +#include +#include "qmath.h" + +#include + +QT_BEGIN_NAMESPACE + +static const qreal aliasedCoordinateDelta = 0.5 - 0.015625; + +#define qreal_to_fixed_26_6(f) (int(f * 64)) + + + + +static const QRectF boundingRect(const QPointF *points, int pointCount) +{ + const QPointF *e = points; + const QPointF *last = points + pointCount; + qreal minx, maxx, miny, maxy; + minx = maxx = e->x(); + miny = maxy = e->y(); + while (++e < last) { + if (e->x() < minx) + minx = e->x(); + else if (e->x() > maxx) + maxx = e->x(); + if (e->y() < miny) + miny = e->y(); + else if (e->y() > maxy) + maxy = e->y(); + } + return QRectF(QPointF(minx, miny), QPointF(maxx, maxy)); +} + + +QT_FT_Outline *QOutlineMapper::convertPath(const QPainterPath &path) +{ + Q_ASSERT(!path.isEmpty()); + int elmCount = path.elementCount(); +#ifdef QT_DEBUG_CONVERT + printf("QOutlineMapper::convertPath(), size=%d\n", elmCount); +#endif + beginOutline(path.fillRule()); + + for (int index=0; index(path.points()); + + for (int index = 0; index < count; ++index) { + switch (elements[index]) { + case QPainterPath::MoveToElement: + if (index == count - 1) + continue; + moveTo(points[index]); + break; + + case QPainterPath::LineToElement: + lineTo(points[index]); + break; + + case QPainterPath::CurveToElement: + curveTo(points[index], points[index+1], points[index+2]); + index += 2; + break; + + default: + break; // This will never hit.. + } + } + + } else { + // ### We can kill this copying and just use the buffer straight... + + m_elements.resize(count); + memcpy(m_elements.data(), path.points(), count* sizeof(QPointF)); + + m_element_types.resize(0); + } + + endOutline(); + return outline(); +} + + +void QOutlineMapper::endOutline() +{ + closeSubpath(); + + int element_count = m_elements.size(); + + if (element_count == 0) { + memset(&m_outline, 0, sizeof(m_outline)); + return; + } + + QPointF *elements; + + // Transform the outline + if (m_txop == QTransform::TxNone) { + elements = m_elements.data(); + } else { + if (m_txop == QTransform::TxTranslate) { + for (int i=0; i QT_RASTER_COORD_LIMIT + || controlPointRect.top() < -QT_RASTER_COORD_LIMIT + || controlPointRect.bottom() > QT_RASTER_COORD_LIMIT); + + if (do_clip) { + clipElements(elements, elementTypes(), element_count); + } else { + convertElements(elements, elementTypes(), element_count); + } +} + +void QOutlineMapper::convertElements(const QPointF *elements, + const QPainterPath::ElementType *types, + int element_count) +{ + + if (types) { + // Translate into FT coords + const QPointF *e = elements; + for (int i=0; ix()), + qreal_to_fixed_26_6(e->y()) }; + if (i != 0) + m_contours << m_points.size() - 1; + m_points << pt_fixed; + m_tags << QT_FT_CURVE_TAG_ON; + } + break; + + case QPainterPath::LineToElement: + { + QT_FT_Vector pt_fixed = { qreal_to_fixed_26_6(e->x()), + qreal_to_fixed_26_6(e->y()) }; + m_points << pt_fixed; + m_tags << QT_FT_CURVE_TAG_ON; + } + break; + + case QPainterPath::CurveToElement: + { + QT_FT_Vector cp1_fixed = { qreal_to_fixed_26_6(e->x()), + qreal_to_fixed_26_6(e->y()) }; + ++e; + QT_FT_Vector cp2_fixed = { qreal_to_fixed_26_6((e)->x()), + qreal_to_fixed_26_6((e)->y()) }; + ++e; + QT_FT_Vector ep_fixed = { qreal_to_fixed_26_6((e)->x()), + qreal_to_fixed_26_6((e)->y()) }; + + m_points << cp1_fixed << cp2_fixed << ep_fixed; + m_tags << QT_FT_CURVE_TAG_CUBIC + << QT_FT_CURVE_TAG_CUBIC + << QT_FT_CURVE_TAG_ON; + + types += 2; + i += 2; + } + break; + default: + break; + } + ++types; + ++e; + } + } else { + // Plain polygon... + const QPointF *last = elements + element_count; + const QPointF *e = elements; + while (e < last) { + QT_FT_Vector pt_fixed = { qreal_to_fixed_26_6(e->x()), + qreal_to_fixed_26_6(e->y()) }; + m_points << pt_fixed; + m_tags << QT_FT_CURVE_TAG_ON; + ++e; + } + } + + // close the very last subpath + m_contours << m_points.size() - 1; + + m_outline.n_contours = m_contours.size(); + m_outline.n_points = m_points.size(); + + m_outline.points = m_points.data(); + m_outline.tags = m_tags.data(); + m_outline.contours = m_contours.data(); + +#ifdef QT_DEBUG_CONVERT + printf("QOutlineMapper::endOutline\n"); + + printf(" - contours: %d\n", m_outline.n_contours); + for (int i=0; i