summaryrefslogtreecommitdiffstats
path: root/src/gui/painting/qpainterpath_p.h
diff options
context:
space:
mode:
authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:18:55 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:18:55 (GMT)
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /src/gui/painting/qpainterpath_p.h
downloadQt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip
Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz
Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.bz2
Long live Qt 4.5!
Diffstat (limited to 'src/gui/painting/qpainterpath_p.h')
-rw-r--r--src/gui/painting/qpainterpath_p.h211
1 files changed, 211 insertions, 0 deletions
diff --git a/src/gui/painting/qpainterpath_p.h b/src/gui/painting/qpainterpath_p.h
new file mode 100644
index 0000000..93f9704
--- /dev/null
+++ b/src/gui/painting/qpainterpath_p.h
@@ -0,0 +1,211 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPAINTERPATH_P_H
+#define QPAINTERPATH_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists for the convenience
+// of other Qt classes. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "QtGui/qpainterpath.h"
+#include "QtGui/qregion.h"
+#include "QtCore/qlist.h"
+#include "QtCore/qvarlengtharray.h"
+
+#include <qdebug.h>
+
+#include <private/qvectorpath_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QPolygonF;
+class QVectorPathConverter;
+
+class QVectorPathConverter
+{
+public:
+ QVectorPathConverter(const QVector<QPainterPath::Element> &path, uint fillRule)
+ : pathData(path, fillRule),
+ path(pathData.points.data(), path.size(),
+ pathData.elements.data(), pathData.flags) {}
+
+ const QVectorPath &vectorPath() {
+ return path;
+ }
+
+ struct QVectorPathData {
+ QVectorPathData(const QVector<QPainterPath::Element> &path, uint fillRule)
+ : elements(path.size()),
+ points(path.size() * 2),
+ flags(0)
+ {
+ int ptsPos = 0;
+ for (int i=0; i<path.size(); ++i) {
+ const QPainterPath::Element &e = path.at(i);
+ elements[i] = e.type;
+ points[ptsPos++] = e.x;
+ points[ptsPos++] = e.y;
+ if (e.type == QPainterPath::CurveToElement)
+ flags |= QVectorPath::CurvedShapeHint;
+ }
+
+ if (fillRule == Qt::WindingFill)
+ flags |= QVectorPath::WindingFill;
+ else
+ flags |= QVectorPath::OddEvenFill;
+
+ }
+ QVarLengthArray<QPainterPath::ElementType> elements;
+ QVarLengthArray<qreal> points;
+ uint flags;
+ };
+
+ QVectorPathData pathData;
+ QVectorPath path;
+
+private:
+ Q_DISABLE_COPY(QVectorPathConverter)
+};
+
+class Q_GUI_EXPORT QPainterPathData : public QPainterPathPrivate
+{
+public:
+ QPainterPathData() :
+ cStart(0), fillRule(Qt::OddEvenFill),
+ dirtyBounds(false), dirtyControlBounds(false),
+ pathConverter(0)
+ {
+ ref = 1;
+ require_moveTo = false;
+ }
+
+ QPainterPathData(const QPainterPathData &other) :
+ QPainterPathPrivate(), cStart(other.cStart), fillRule(other.fillRule),
+ dirtyBounds(other.dirtyBounds), bounds(other.bounds),
+ dirtyControlBounds(other.dirtyControlBounds),
+ controlBounds(other.controlBounds),
+ pathConverter(0)
+ {
+ ref = 1;
+ require_moveTo = false;
+ elements = other.elements;
+ }
+
+ ~QPainterPathData() {
+ delete pathConverter;
+ }
+
+ inline bool isClosed() const;
+ inline void close();
+ inline void maybeMoveTo();
+
+ const QVectorPath &vectorPath() {
+ if (!pathConverter)
+ pathConverter = new QVectorPathConverter(elements, fillRule);
+ return pathConverter->path;
+ }
+
+ int cStart;
+ Qt::FillRule fillRule;
+
+ bool require_moveTo;
+
+ bool dirtyBounds;
+ QRectF bounds;
+ bool dirtyControlBounds;
+ QRectF controlBounds;
+
+ QVectorPathConverter *pathConverter;
+};
+
+
+
+void Q_GUI_EXPORT qt_find_ellipse_coords(const QRectF &r, qreal angle, qreal length,
+ QPointF* startPoint, QPointF *endPoint);
+
+inline bool QPainterPathData::isClosed() const
+{
+ const QPainterPath::Element &first = elements.at(cStart);
+ const QPainterPath::Element &last = elements.last();
+ return first.x == last.x && first.y == last.y;
+}
+
+inline void QPainterPathData::close()
+{
+ Q_ASSERT(ref == 1);
+ require_moveTo = true;
+ const QPainterPath::Element &first = elements.at(cStart);
+ QPainterPath::Element &last = elements.last();
+ if (first.x != last.x || first.y != last.y) {
+ if (qFuzzyCompare(first.x, last.x) && qFuzzyCompare(first.y, last.y)) {
+ last.x = first.x;
+ last.y = first.y;
+ } else {
+ QPainterPath::Element e = { first.x, first.y, QPainterPath::LineToElement };
+ elements << e;
+ }
+ }
+}
+
+inline void QPainterPathData::maybeMoveTo()
+{
+ if (require_moveTo) {
+ QPainterPath::Element e = elements.last();
+ e.type = QPainterPath::MoveToElement;
+ elements.append(e);
+ require_moveTo = false;
+ }
+}
+
+#define KAPPA 0.5522847498
+
+
+QT_END_NAMESPACE
+
+#endif // QPAINTERPATH_P_H