--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/painting/qpainterpath.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,428 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPAINTERPATH_H
+#define QPAINTERPATH_H
+
+#include <QtGui/qmatrix.h>
+#include <QtCore/qglobal.h>
+#include <QtCore/qrect.h>
+#include <QtCore/qline.h>
+#include <QtCore/qvector.h>
+#include <QtCore/qscopedpointer.h>
+
+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);
+ ~QPainterPath();
+
+ 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<QPolygonF> toSubpathPolygons(const QMatrix &matrix = QMatrix()) const;
+ QList<QPolygonF> toFillPolygons(const QMatrix &matrix = QMatrix()) const;
+ QPolygonF toFillPolygon(const QMatrix &matrix = QMatrix()) const;
+ QList<QPolygonF> toSubpathPolygons(const QTransform &matrix) const;
+ QList<QPolygonF> 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<QPainterPathPrivate, QPainterPathPrivateDeleter> 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<QPainterPathData *>(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<QPainterPath::Element> 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<qreal> &dashPattern);
+ QVector<qreal> dashPattern() const;
+
+ void setDashOffset(qreal offset);
+ qreal dashOffset() const;
+
+ QPainterPath createStroke(const QPainterPath &path) const;
+
+private:
+ friend class QX11PaintEngine;
+
+ QScopedPointer<QPainterPathStrokerPrivate> 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