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/*
* Copyright (C) 2007-2009 Torch Mobile, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef PlatformPathWinCE_h
#define PlatformPathWinCE_h
#include "FloatPoint.h"
#include "FloatRect.h"
#include "Path.h"
#include <wtf/Vector.h>
namespace WebCore {
class GraphicsContext;
struct PathPoint {
float m_x;
float m_y;
const float& x() const { return m_x; }
const float& y() const { return m_y; }
void set(float x, float y)
{
m_x = x;
m_y = y;
};
operator FloatPoint() const { return FloatPoint(m_x, m_y); }
void move(const FloatSize& offset)
{
m_x += offset.width();
m_y += offset.height();
}
PathPoint& operator=(const FloatPoint& p)
{
m_x = p.x();
m_y = p.y();
return *this;
}
void clear() { m_x = m_y = 0; }
};
struct PathPolygon: public Vector<PathPoint> {
void move(const FloatSize& offset);
void transform(const AffineTransform& t);
bool contains(const FloatPoint& point) const;
};
class PlatformPathElement {
public:
enum PlaformPathElementType {
PathMoveTo,
PathLineTo,
PathArcTo,
PathQuadCurveTo,
PathBezierCurveTo,
PathCloseSubpath,
};
struct MoveTo {
PathPoint m_end;
};
struct LineTo {
PathPoint m_end;
};
struct ArcTo {
PathPoint m_end;
PathPoint m_center;
PathPoint m_radius;
bool m_clockwise;
};
struct QuadCurveTo {
PathPoint m_point0;
PathPoint m_point1;
};
struct BezierCurveTo {
PathPoint m_point0;
PathPoint m_point1;
PathPoint m_point2;
};
PlatformPathElement(): m_type(PathCloseSubpath) { m_data.m_points[0].set(0, 0); }
PlatformPathElement(const MoveTo& data): m_type(PathMoveTo) { m_data.m_moveToData = data; }
PlatformPathElement(const LineTo& data): m_type(PathLineTo) { m_data.m_lineToData = data; }
PlatformPathElement(const ArcTo& data): m_type(PathArcTo) { m_data.m_arcToData = data; }
PlatformPathElement(const QuadCurveTo& data): m_type(PathQuadCurveTo) { m_data.m_quadCurveToData = data; }
PlatformPathElement(const BezierCurveTo& data): m_type(PathBezierCurveTo) { m_data.m_bezierCurveToData = data; }
const MoveTo& moveTo() const { return m_data.m_moveToData; }
const LineTo& lineTo() const { return m_data.m_lineToData; }
const ArcTo& arcTo() const { return m_data.m_arcToData; }
const QuadCurveTo& quadCurveTo() const { return m_data.m_quadCurveToData; }
const BezierCurveTo& bezierCurveTo() const { return m_data.m_bezierCurveToData; }
const PathPoint& lastPoint() const
{
int n = numPoints();
return n > 1 ? m_data.m_points[n - 1] : m_data.m_points[0];
}
const PathPoint& pointAt(int index) const { return m_data.m_points[index]; }
int numPoints() const;
int numControlPoints() const;
void move(const FloatSize& offset);
void transform(const AffineTransform& t);
PathElementType type() const;
PlaformPathElementType platformType() const { return m_type; }
void inflateRectToContainMe(FloatRect& r, const FloatPoint& lastPoint) const;
private:
PlaformPathElementType m_type;
union {
MoveTo m_moveToData;
LineTo m_lineToData;
ArcTo m_arcToData;
QuadCurveTo m_quadCurveToData;
BezierCurveTo m_bezierCurveToData;
PathPoint m_points[4];
} m_data;
};
typedef Vector<PlatformPathElement> PlatformPathElements;
class PlatformPath {
public:
PlatformPath();
const PlatformPathElements& elements() const { return m_elements; }
void append(const PlatformPathElement& e);
void append(const PlatformPath& p);
void clear();
bool isEmpty() const { return m_elements.isEmpty(); }
void strokePath(HDC, const AffineTransform* tr) const;
void fillPath(HDC, const AffineTransform* tr) const;
FloatPoint lastPoint() const { return m_elements.isEmpty() ? FloatPoint(0, 0) : m_elements.last().lastPoint(); }
const FloatRect& boundingRect() const { return m_boundingRect; }
bool contains(const FloatPoint& point, WindRule rule) const;
void translate(const FloatSize& size);
void transform(const AffineTransform& t);
void moveTo(const FloatPoint&);
void addLineTo(const FloatPoint&);
void addQuadCurveTo(const FloatPoint& controlPoint, const FloatPoint& point);
void addBezierCurveTo(const FloatPoint& controlPoint1, const FloatPoint& controlPoint2, const FloatPoint&);
void addArcTo(const FloatPoint&, const FloatPoint&, float radius);
void closeSubpath();
void addEllipse(const FloatPoint& p, float a, float b, float sar, float ear, bool anticlockwise);
void addRect(const FloatRect& r);
void addEllipse(const FloatRect& r);
void apply(void* info, PathApplierFunction function) const;
private:
void ensureSubpath();
void addToSubpath(const PlatformPathElement& e);
PlatformPathElements m_elements;
FloatRect m_boundingRect;
Vector<PathPolygon> m_subpaths;
PathPoint m_currentPoint;
bool m_penLifted;
};
}
#endif // PlatformPathWinCE_h
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