1 files changed, 278 insertions, 0 deletions
diff --git a/WebCore/platform/graphics/qt/PathQt.cpp b/WebCore/platform/graphics/qt/PathQt.cpp
new file mode 100644
index 0000000..76f375c
--- /dev/null
+++ b/WebCore/platform/graphics/qt/PathQt.cpp
@@ -0,0 +1,278 @@
+/*
+ * Copyright (C) 2006 Zack Rusin <zack@kde.org>
+ *               2006 Rob Buis   <buis@kde.org>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "Path.h"
+
+#include "FloatRect.h"
+#include "PlatformString.h"
+#include "AffineTransform.h"
+#include <QPainterPath>
+#include <QMatrix>
+#include <QString>
+
+#define _USE_MATH_DEFINES
+#include <math.h>
+
+namespace WebCore {
+
+Path::Path()
+    : m_path(new QPainterPath())
+{
+}
+
+Path::~Path()
+{
+    delete m_path;
+}
+
+Path::Path(const Path& other)
+    : m_path(new QPainterPath(*other.platformPath()))
+{
+}
+
+Path& Path::operator=(const Path& other)
+{
+    if (&other != this) {
+        delete m_path;
+        m_path = new QPainterPath(*other.platformPath());
+    }
+
+    return *this;
+}
+
+bool Path::contains(const FloatPoint& point, WindRule rule) const
+{
+    Qt::FillRule savedRule = m_path->fillRule();
+    m_path->setFillRule(rule == RULE_EVENODD ? Qt::OddEvenFill : Qt::WindingFill);
+
+    bool contains = m_path->contains(point);
+
+    m_path->setFillRule(savedRule);
+    return contains;
+}
+
+void Path::translate(const FloatSize& size)
+{
+    QMatrix matrix;
+    matrix.translate(size.width(), size.height());
+    *m_path = (*m_path) * matrix;
+}
+
+FloatRect Path::boundingRect() const
+{
+    return m_path->boundingRect();
+}
+
+void Path::moveTo(const FloatPoint& point)
+{
+    m_path->moveTo(point);
+}
+
+void Path::addLineTo(const FloatPoint& p)
+{
+    m_path->lineTo(p);
+}
+
+void Path::addQuadCurveTo(const FloatPoint& cp, const FloatPoint& p)
+{
+    m_path->quadTo(cp, p);
+}
+
+void Path::addBezierCurveTo(const FloatPoint& cp1, const FloatPoint& cp2, const FloatPoint& p)
+{
+    m_path->cubicTo(cp1, cp2, p);
+}
+
+void Path::addArcTo(const FloatPoint& p1, const FloatPoint& p2, float radius)
+{
+    //FIXME: busted
+    qWarning("arcTo is busted");
+    m_path->arcTo(p1.x(), p1.y(), p2.x(), p2.y(), radius, 90);
+}
+
+void Path::closeSubpath()
+{
+    m_path->closeSubpath();
+}
+
+#define DEGREES(t) ((t) * 180.0 / M_PI)
+void Path::addArc(const FloatPoint& p, float r, float sar, float ear, bool anticlockwise)
+{
+    qreal xc = p.x();
+    qreal yc = p.y();
+    qreal radius = r;
+
+
+    //### HACK
+    // In Qt we don't switch the coordinate system for degrees
+    // and still use the 0,0 as bottom left for degrees so we need
+    // to switch
+    sar = -sar;
+    ear = -ear;
+    anticlockwise = !anticlockwise;
+    //end hack
+
+    float sa = DEGREES(sar);
+    float ea = DEGREES(ear);
+
+    double span = 0;
+
+    double xs = xc - radius;
+    double ys = yc - radius;
+    double width  = radius*2;
+    double height = radius*2;
+
+    if (!anticlockwise && (ea < sa))
+        span += 360;
+    else if (anticlockwise && (sa < ea))
+        span -= 360;
+
+    // this is also due to switched coordinate system
+    // we would end up with a 0 span instead of 360
+    if (!(qFuzzyCompare(span + (ea - sa) + 1, 1.0) &&
+          qFuzzyCompare(qAbs(span), 360.0))) {
+        span += ea - sa;
+    }
+
+    m_path->moveTo(QPointF(xc + radius  * cos(sar),
+                          yc - radius  * sin(sar)));
+
+    m_path->arcTo(xs, ys, width, height, sa, span);
+}
+
+void Path::addRect(const FloatRect& r)
+{
+    m_path->addRect(r.x(), r.y(), r.width(), r.height());
+}
+
+void Path::addEllipse(const FloatRect& r)
+{
+    m_path->addEllipse(r.x(), r.y(), r.width(), r.height());
+}
+
+void Path::clear()
+{
+    *m_path = QPainterPath();
+}
+
+bool Path::isEmpty() const
+{
+    return m_path->isEmpty();
+}
+
+String Path::debugString() const
+{
+    QString ret;
+    for (int i = 0; i < m_path->elementCount(); ++i) {
+        const QPainterPath::Element &cur = m_path->elementAt(i);
+
+        switch (cur.type) {
+            case QPainterPath::MoveToElement:
+                ret += QString(QLatin1String("M %1 %2")).arg(cur.x).arg(cur.y);
+                break;
+            case QPainterPath::LineToElement:
+                ret += QString(QLatin1String("L %1 %2")).arg(cur.x).arg(cur.y);
+                break;
+            case QPainterPath::CurveToElement:
+            {
+                const QPainterPath::Element &c1 = m_path->elementAt(i + 1);
+                const QPainterPath::Element &c2 = m_path->elementAt(i + 2);
+
+                Q_ASSERT(c1.type == QPainterPath::CurveToDataElement);
+                Q_ASSERT(c2.type == QPainterPath::CurveToDataElement);
+
+                ret += QString(QLatin1String("C %1 %2 %3 %4 %5 %6")).arg(cur.x).arg(cur.y).arg(c1.x).arg(c1.y).arg(c2.x).arg(c2.y);
+
+                i += 2;
+                break;
+            }
+            case QPainterPath::CurveToDataElement:
+                Q_ASSERT(false);
+                break;
+        }
+    }
+
+    return ret;
+}
+
+void Path::apply(void* info, PathApplierFunction function) const
+{
+    PathElement pelement;
+    FloatPoint points[3];
+    pelement.points = points;
+    for (int i = 0; i < m_path->elementCount(); ++i) {
+        const QPainterPath::Element& cur = m_path->elementAt(i);
+
+        switch (cur.type) {
+            case QPainterPath::MoveToElement:
+                pelement.type = PathElementMoveToPoint;
+                pelement.points[0] = QPointF(cur);
+                function(info, &pelement);
+                break;
+            case QPainterPath::LineToElement:
+                pelement.type = PathElementAddLineToPoint;
+                pelement.points[0] = QPointF(cur);
+                function(info, &pelement);
+                break;
+            case QPainterPath::CurveToElement:
+            {
+                const QPainterPath::Element& c1 = m_path->elementAt(i + 1);
+                const QPainterPath::Element& c2 = m_path->elementAt(i + 2);
+
+                Q_ASSERT(c1.type == QPainterPath::CurveToDataElement);
+                Q_ASSERT(c2.type == QPainterPath::CurveToDataElement);
+
+                pelement.type = PathElementAddCurveToPoint;
+                pelement.points[0] = QPointF(cur);
+                pelement.points[1] = QPointF(c1);
+                pelement.points[2] = QPointF(c2);
+                function(info, &pelement);
+
+                i += 2;
+                break;
+            }
+            case QPainterPath::CurveToDataElement:
+                Q_ASSERT(false);
+        }
+    }
+}
+
+void Path::transform(const AffineTransform& transform)
+{
+    if (m_path) {
+        QMatrix mat = transform;
+        QPainterPath temp = mat.map(*m_path);
+        delete m_path;
+        m_path = new QPainterPath(temp);
+    }
+}
+
+}
+
+// vim: ts=4 sw=4 et