From 38be0d13830efd2d98281c645c3a60afe05ffece Mon Sep 17 00:00:00 2001 From: Qt by Nokia Date: Wed, 27 Apr 2011 12:05:43 +0200 Subject: 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 --- src/gui/painting/qpainterpath.h | 435 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 435 insertions(+) create mode 100644 src/gui/painting/qpainterpath.h (limited to 'src/gui/painting/qpainterpath.h') diff --git a/src/gui/painting/qpainterpath.h b/src/gui/painting/qpainterpath.h new file mode 100644 index 0000000000..3c23282d8e --- /dev/null +++ b/src/gui/painting/qpainterpath.h @@ -0,0 +1,435 @@ +/**************************************************************************** +** +** 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 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QPAINTERPATH_H +#define QPAINTERPATH_H + +#include +#include +#include +#include +#include +#include + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Gui) + +class QFont; +class QPainterPathPrivate; +struct QPainterPathPrivateDeleter; +class QPainterPathData; +class QPainterPathStrokerPrivate; +class QPolygonF; +class QRegion; +class QVectorPath; + +class Q_GUI_EXPORT QPainterPath +{ +public: + enum ElementType { + MoveToElement, + LineToElement, + CurveToElement, + CurveToDataElement + }; + + class Element { + public: + qreal x; + qreal y; + ElementType type; + + bool isMoveTo() const { return type == MoveToElement; } + bool isLineTo() const { return type == LineToElement; } + bool isCurveTo() const { return type == CurveToElement; } + + operator QPointF () const { return QPointF(x, y); } + + bool operator==(const Element &e) const { return qFuzzyCompare(x, e.x) + && qFuzzyCompare(y, e.y) && type == e.type; } + inline bool operator!=(const Element &e) const { return !operator==(e); } + }; + + QPainterPath(); + explicit QPainterPath(const QPointF &startPoint); + QPainterPath(const QPainterPath &other); + QPainterPath &operator=(const QPainterPath &other); +#ifdef Q_COMPILER_RVALUE_REFS + inline QPainterPath &operator=(QPainterPath &&other) + { qSwap(d_ptr, other.d_ptr); return *this; } +#endif + ~QPainterPath(); + inline void swap(QPainterPath &other) { d_ptr.swap(other.d_ptr); } + + void closeSubpath(); + + void moveTo(const QPointF &p); + inline void moveTo(qreal x, qreal y); + + void lineTo(const QPointF &p); + inline void lineTo(qreal x, qreal y); + + void arcMoveTo(const QRectF &rect, qreal angle); + inline void arcMoveTo(qreal x, qreal y, qreal w, qreal h, qreal angle); + + void arcTo(const QRectF &rect, qreal startAngle, qreal arcLength); + inline void arcTo(qreal x, qreal y, qreal w, qreal h, qreal startAngle, qreal arcLength); + + void cubicTo(const QPointF &ctrlPt1, const QPointF &ctrlPt2, const QPointF &endPt); + inline void cubicTo(qreal ctrlPt1x, qreal ctrlPt1y, qreal ctrlPt2x, qreal ctrlPt2y, + qreal endPtx, qreal endPty); + void quadTo(const QPointF &ctrlPt, const QPointF &endPt); + inline void quadTo(qreal ctrlPtx, qreal ctrlPty, qreal endPtx, qreal endPty); + + QPointF currentPosition() const; + + void addRect(const QRectF &rect); + inline void addRect(qreal x, qreal y, qreal w, qreal h); + void addEllipse(const QRectF &rect); + inline void addEllipse(qreal x, qreal y, qreal w, qreal h); + inline void addEllipse(const QPointF ¢er, qreal rx, qreal ry); + void addPolygon(const QPolygonF &polygon); + void addText(const QPointF &point, const QFont &f, const QString &text); + inline void addText(qreal x, qreal y, const QFont &f, const QString &text); + void addPath(const QPainterPath &path); + void addRegion(const QRegion ®ion); + + void addRoundedRect(const QRectF &rect, qreal xRadius, qreal yRadius, + Qt::SizeMode mode = Qt::AbsoluteSize); + inline void addRoundedRect(qreal x, qreal y, qreal w, qreal h, + qreal xRadius, qreal yRadius, + Qt::SizeMode mode = Qt::AbsoluteSize); + + void addRoundRect(const QRectF &rect, int xRnd, int yRnd); + inline void addRoundRect(qreal x, qreal y, qreal w, qreal h, + int xRnd, int yRnd); + inline void addRoundRect(const QRectF &rect, int roundness); + inline void addRoundRect(qreal x, qreal y, qreal w, qreal h, + int roundness); + + void connectPath(const QPainterPath &path); + + bool contains(const QPointF &pt) const; + bool contains(const QRectF &rect) const; + bool intersects(const QRectF &rect) const; + + void translate(qreal dx, qreal dy); + inline void translate(const QPointF &offset); + + QPainterPath translated(qreal dx, qreal dy) const; + inline QPainterPath translated(const QPointF &offset) const; + + QRectF boundingRect() const; + QRectF controlPointRect() const; + + Qt::FillRule fillRule() const; + void setFillRule(Qt::FillRule fillRule); + + inline bool isEmpty() const; + + QPainterPath toReversed() const; + QList toSubpathPolygons(const QMatrix &matrix = QMatrix()) const; + QList toFillPolygons(const QMatrix &matrix = QMatrix()) const; + QPolygonF toFillPolygon(const QMatrix &matrix = QMatrix()) const; + QList toSubpathPolygons(const QTransform &matrix) const; + QList toFillPolygons(const QTransform &matrix) const; + QPolygonF toFillPolygon(const QTransform &matrix) const; + + inline int elementCount() const; + inline const QPainterPath::Element &elementAt(int i) const; + inline void setElementPositionAt(int i, qreal x, qreal y); + + qreal length() const; + qreal percentAtLength(qreal t) const; + QPointF pointAtPercent(qreal t) const; + qreal angleAtPercent(qreal t) const; + qreal slopeAtPercent(qreal t) const; + + bool intersects(const QPainterPath &p) const; + bool contains(const QPainterPath &p) const; + QPainterPath united(const QPainterPath &r) const; + QPainterPath intersected(const QPainterPath &r) const; + QPainterPath subtracted(const QPainterPath &r) const; + QPainterPath subtractedInverted(const QPainterPath &r) const; + + QPainterPath simplified() const; + + bool operator==(const QPainterPath &other) const; + bool operator!=(const QPainterPath &other) const; + + QPainterPath operator&(const QPainterPath &other) const; + QPainterPath operator|(const QPainterPath &other) const; + QPainterPath operator+(const QPainterPath &other) const; + QPainterPath operator-(const QPainterPath &other) const; + QPainterPath &operator&=(const QPainterPath &other); + QPainterPath &operator|=(const QPainterPath &other); + QPainterPath &operator+=(const QPainterPath &other); + QPainterPath &operator-=(const QPainterPath &other); + +private: + QScopedPointer d_ptr; + + inline void ensureData() { if (!d_ptr) ensureData_helper(); } + void ensureData_helper(); + inline void detach(); + void detach_helper(); + void setDirty(bool); + void computeBoundingRect() const; + void computeControlPointRect() const; + + QPainterPathData *d_func() const { return reinterpret_cast(d_ptr.data()); } + + friend class QPainterPathData; + friend class QPainterPathStroker; + friend class QPainterPathStrokerPrivate; + friend class QMatrix; + friend class QTransform; + friend class QVectorPath; + friend Q_GUI_EXPORT const QVectorPath &qtVectorPathForPath(const QPainterPath &); + +#ifndef QT_NO_DATASTREAM + friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QPainterPath &); + friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QPainterPath &); +#endif +}; + +class QPainterPathPrivate +{ +public: + friend class QPainterPath; + friend class QPainterPathData; + friend class QPainterPathStroker; + friend class QPainterPathStrokerPrivate; + friend class QMatrix; + friend class QTransform; + friend class QVectorPath; + friend struct QPainterPathPrivateDeleter; +#ifndef QT_NO_DATASTREAM + friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QPainterPath &); + friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QPainterPath &); +#endif +private: + QAtomicInt ref; + QVector elements; +}; + +Q_DECLARE_TYPEINFO(QPainterPath::Element, Q_PRIMITIVE_TYPE); + +#ifndef QT_NO_DATASTREAM +Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QPainterPath &); +Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QPainterPath &); +#endif + +class Q_GUI_EXPORT QPainterPathStroker +{ + Q_DECLARE_PRIVATE(QPainterPathStroker) +public: + QPainterPathStroker(); + ~QPainterPathStroker(); + + void setWidth(qreal width); + qreal width() const; + + void setCapStyle(Qt::PenCapStyle style); + Qt::PenCapStyle capStyle() const; + + void setJoinStyle(Qt::PenJoinStyle style); + Qt::PenJoinStyle joinStyle() const; + + void setMiterLimit(qreal length); + qreal miterLimit() const; + + void setCurveThreshold(qreal threshold); + qreal curveThreshold() const; + + void setDashPattern(Qt::PenStyle); + void setDashPattern(const QVector &dashPattern); + QVector dashPattern() const; + + void setDashOffset(qreal offset); + qreal dashOffset() const; + + QPainterPath createStroke(const QPainterPath &path) const; + +private: + Q_DISABLE_COPY(QPainterPathStroker) + + friend class QX11PaintEngine; + + QScopedPointer d_ptr; +}; + +inline void QPainterPath::moveTo(qreal x, qreal y) +{ + moveTo(QPointF(x, y)); +} + +inline void QPainterPath::lineTo(qreal x, qreal y) +{ + lineTo(QPointF(x, y)); +} + +inline void QPainterPath::arcTo(qreal x, qreal y, qreal w, qreal h, qreal startAngle, qreal arcLength) +{ + arcTo(QRectF(x, y, w, h), startAngle, arcLength); +} + +inline void QPainterPath::arcMoveTo(qreal x, qreal y, qreal w, qreal h, qreal angle) +{ + arcMoveTo(QRectF(x, y, w, h), angle); +} + +inline void QPainterPath::cubicTo(qreal ctrlPt1x, qreal ctrlPt1y, qreal ctrlPt2x, qreal ctrlPt2y, + qreal endPtx, qreal endPty) +{ + cubicTo(QPointF(ctrlPt1x, ctrlPt1y), QPointF(ctrlPt2x, ctrlPt2y), + QPointF(endPtx, endPty)); +} + +inline void QPainterPath::quadTo(qreal ctrlPtx, qreal ctrlPty, qreal endPtx, qreal endPty) +{ + quadTo(QPointF(ctrlPtx, ctrlPty), QPointF(endPtx, endPty)); +} + +inline void QPainterPath::addEllipse(qreal x, qreal y, qreal w, qreal h) +{ + addEllipse(QRectF(x, y, w, h)); +} + +inline void QPainterPath::addEllipse(const QPointF ¢er, qreal rx, qreal ry) +{ + addEllipse(QRectF(center.x() - rx, center.y() - ry, 2 * rx, 2 * ry)); +} + +inline void QPainterPath::addRect(qreal x, qreal y, qreal w, qreal h) +{ + addRect(QRectF(x, y, w, h)); +} + +inline void QPainterPath::addRoundedRect(qreal x, qreal y, qreal w, qreal h, + qreal xRadius, qreal yRadius, + Qt::SizeMode mode) +{ + addRoundedRect(QRectF(x, y, w, h), xRadius, yRadius, mode); +} + +inline void QPainterPath::addRoundRect(qreal x, qreal y, qreal w, qreal h, + int xRnd, int yRnd) +{ + addRoundRect(QRectF(x, y, w, h), xRnd, yRnd); +} + +inline void QPainterPath::addRoundRect(const QRectF &rect, + int roundness) +{ + int xRnd = roundness; + int yRnd = roundness; + if (rect.width() > rect.height()) + xRnd = int(roundness * rect.height()/rect.width()); + else + yRnd = int(roundness * rect.width()/rect.height()); + addRoundRect(rect, xRnd, yRnd); +} + +inline void QPainterPath::addRoundRect(qreal x, qreal y, qreal w, qreal h, + int roundness) +{ + addRoundRect(QRectF(x, y, w, h), roundness); +} + +inline void QPainterPath::addText(qreal x, qreal y, const QFont &f, const QString &text) +{ + addText(QPointF(x, y), f, text); +} + +inline void QPainterPath::translate(const QPointF &offset) +{ translate(offset.x(), offset.y()); } + +inline QPainterPath QPainterPath::translated(const QPointF &offset) const +{ return translated(offset.x(), offset.y()); } + +inline bool QPainterPath::isEmpty() const +{ + return !d_ptr || (d_ptr->elements.size() == 1 && d_ptr->elements.first().type == MoveToElement); +} + +inline int QPainterPath::elementCount() const +{ + return d_ptr ? d_ptr->elements.size() : 0; +} + +inline const QPainterPath::Element &QPainterPath::elementAt(int i) const +{ + Q_ASSERT(d_ptr); + Q_ASSERT(i >= 0 && i < elementCount()); + return d_ptr->elements.at(i); +} + +inline void QPainterPath::setElementPositionAt(int i, qreal x, qreal y) +{ + Q_ASSERT(d_ptr); + Q_ASSERT(i >= 0 && i < elementCount()); + detach(); + QPainterPath::Element &e = d_ptr->elements[i]; + e.x = x; + e.y = y; +} + + +inline void QPainterPath::detach() +{ + if (d_ptr->ref != 1) + detach_helper(); + setDirty(true); +} + +#ifndef QT_NO_DEBUG_STREAM +Q_GUI_EXPORT QDebug operator<<(QDebug, const QPainterPath &); +#endif + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QPAINTERPATH_H -- cgit v1.2.3