pengjunjie/core
1
0
Fork 1
mirror of https://github.com/ONLYOFFICE/core.git synced 2026-07-11 14:00:32 +08:00
Code Issues Packages Projects Releases Wiki Activity
Files
da50f1355f4cc7cdec8fac460a80cb36291beddb
core/ASCImageStudio3/ASCGraphics/agg/ASCWrapper/GraphicsPath.h
Elen.Subbotina 70e623d70b восстановление 
git-svn-id: svn://fileserver/activex/AVS/Sources/TeamlabOffice/trunk/ServerComponents@62634 954022d7-b5bf-4e40-9824-e11837661b57
2016-05-21 00:05:02 +03:00

1294 lines
31 KiB
C++
Raw Blame History

#pragma once
#include "..\ap_AggPlusEnums.h"
#include "..\ap_AggPlusTypes.h"
#include "..\ap_StringFormat.h"
#include "..\include\agg_path_storage.h"
#pragma warning(disable : 4786)
#include "..\include\agg_rasterizer_scanline_aa.h"
#include "..\include\agg_conv_transform.h"
#include "..\include\agg_conv_stroke.h"
#include "..\include\agg_conv_contour.h"
#include "..\include\agg_conv_unclose_polygon.h"
#include "..\include\agg_bezier_arc.h"
#include "..\include\agg_conv_curve.h"
#include "Matrix.h"
#include "..\..\Objects\ASCFontManager.h"
#include "..\..\Objects\Structures.h"
class ISimpleGraphicsPath
{
public:
virtual bool _MoveTo(double x, double y) = 0;
virtual bool _LineTo(double x, double y) = 0;
virtual bool _CurveTo(double x1, double y1, double x2, double y2, double x3, double y3) = 0;
virtual bool _Close() = 0;
};
namespace Aggplus
{
class CGraphicsPath : public ISimpleGraphicsPath
{
friend class CClip;
friend class CASCFontManager;
friend class CGraphics;
public:
CGraphicsPath()
{
m_bEvenOdd = false;
}
~CGraphicsPath()
{
}
CGraphicsPath* Clone()
{
CGraphicsPath* pNew = new CGraphicsPath();
pNew->m_agg_ps = m_agg_ps;
pNew->m_bEvenOdd = m_bEvenOdd;
return pNew;
}
inline Status Reset()
{
m_agg_ps.remove_all();
m_bIsMoveTo = false;
return Ok;
}
inline void SetRuler(bool bEvenOdd)
{
m_bEvenOdd = bEvenOdd;
}
public:
inline Status StartFigure()
{
m_agg_ps.start_new_path();
return Ok;
}
inline Status CloseFigure()
{
m_agg_ps.close_polygon();
return Ok;
}
inline bool Is_poly_closed()
{
if (!m_agg_ps.total_vertices())
return true;
double x, y;
unsigned int nTip = m_agg_ps.last_vertex(&x, &y);
if (nTip & agg::path_flags_close)
return true;
return false;
}
inline Status MoveTo(double x, double y)
{
m_bIsMoveTo = true;
m_agg_ps.move_to(x, y);
return Ok;
}
inline Status LineTo(double x, double y)
{
m_agg_ps.line_to(x, y);
return Ok;
}
inline Status CurveTo(double x1, double y1, double x2, double y2, double x3, double y3)
{
m_agg_ps.curve4(x1, y1, x2, y2, x3, y3);
return Ok;
}
inline Status AddLine(double x1, double y1, double x2, double y2)
{
if (Is_poly_closed())
{
m_agg_ps.move_to(x1, y1);
}
else
{
m_agg_ps.line_to(x1, y1);
}
m_agg_ps.line_to(x2, y2);
return Ok;
}
inline Status AddLines(double* pPoints, int nCount)
{
if (4 > nCount)
{
return InvalidParameter;
}
int nRet = 0;
if (!m_bIsMoveTo)
{
MoveTo(pPoints[0], pPoints[1]);
}
/*if (Is_poly_closed())
{
m_agg_ps.move_to((double)pPoints[0], (double)pPoints[1]);
}
else
{
m_agg_ps.line_to((double)pPoints[0], (double)pPoints[1]);
}*/
int n = (nCount / 2) - 1;
for (int i = 1; i <= n; ++i)
{
double* points = &pPoints[i * 2];
m_agg_ps.line_to(points[0], points[1]);
}
return Ok;
}
inline Status AddLines(float* pPoints, int nCount)
{
if (4 > nCount)
{
return InvalidParameter;
}
int nRet = 0;
if (!m_bIsMoveTo)
{
MoveTo(pPoints[0], pPoints[1]);
}
/*if (Is_poly_closed())
{
m_agg_ps.move_to((double)pPoints[0], (double)pPoints[1]);
}
else
{
m_agg_ps.line_to((double)pPoints[0], (double)pPoints[1]);
}*/
int n = (nCount / 2) - 1;
for (int i = 1; i <= n; ++i)
{
float* points = &pPoints[i * 2];
m_agg_ps.line_to((double)points[0], (double)points[1]);
}
return Ok;
}
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
inline Status AddBezier(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
{
if (Is_poly_closed())
m_agg_ps.move_to(x1, y1);
else
m_agg_ps.line_to(x1, y1);
m_agg_ps.curve4(x2, y2, x3, y3, x4, y4);
return Ok;
}
inline Status AddBeziers(double* pPoints, int nCount)
{
if (8 > nCount)
return InvalidParameter;
if (!m_bIsMoveTo)
{
MoveTo(pPoints[0], pPoints[1]);
}
double* points = pPoints;
agg::curve4 curve;
curve.approximation_method(agg::curve_inc);
curve.approximation_scale(25.0);
curve.init(points[0], points[1], points[2], points[3], points[4], points[5], points[6], points[7]);
if (Is_poly_closed())
{
m_agg_ps.concat_path(curve, 0);
}
else
{
m_agg_ps.join_path(curve, 0);
}
int nCountTo = (nCount - 8) / 6;
for (int i = 0; i < nCountTo; ++i)
{
points = pPoints + 8 + 6 * i;
CurveTo(points[0], points[1], points[2], points[3], points[4], points[5]);
}
return Ok;
}
inline Status AddBeziers(float* pPoints, int nCount)
{
if (8 > nCount)
return InvalidParameter;
float* points = pPoints;
agg::curve4 curve;
curve.approximation_method(agg::curve_inc);
curve.approximation_scale(25.0);
curve.init((double)points[0], (double)points[1], (double)points[2], (double)points[3],
(double)points[4], (double)points[5], (double)points[6], (double)points[7]);
if (Is_poly_closed())
{
m_agg_ps.concat_path(curve, 0);
}
else
{
m_agg_ps.join_path(curve, 0);
}
int nCountTo = (nCount - 8) / 6;
for (int i = 0; i < nCountTo; ++i)
{
points = pPoints + 8 + 6 * i;
CurveTo((double)points[0], (double)points[1], (double)points[2], (double)points[3], (double)points[4], (double)points[5]);
}
return Ok;
}
inline Status AddCurve(double* pPoints, int nCount)
{
// <20><><EFBFBD><EFBFBD> <20><> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
return AddBeziers(pPoints, nCount);
}
inline Status AddEllipse(double x, double y, double width, double height)
{
agg::bezier_arc arc(x+width/2.0, y+height/2.0, width/2.0, height/2.0, 0.0, agg::pi2);
//2.3 m_agg_ps.add_path(arc, 0, true);
m_agg_ps.join_path(arc, 0);
return Ok;
}
inline Status AddRectangle(double x, double y, double width, double height)
{
m_agg_ps.move_to(x, y);
m_agg_ps.line_to(x + width, y);
m_agg_ps.line_to(x + width, y + height);
m_agg_ps.line_to(x, y + height);
m_agg_ps.close_polygon();
return Ok;
}
inline Status AddPolygon(double* pPoints, int nCount)
{
if (2 > nCount)
{
return InvalidParameter;
}
int nRet = 0;
if (Is_poly_closed())
{
m_agg_ps.move_to(pPoints[0], pPoints[1]);
}
else
{
m_agg_ps.line_to(pPoints[0], pPoints[1]);
}
int n = (nCount / 2) - 1;
for (int i = 1; i < n; ++i)
{
double* points = &pPoints[i * 2];
m_agg_ps.line_to(points[0], points[1]);
}
m_agg_ps.close_polygon();
return Ok;
}
inline Status AddPath(const CGraphicsPath& oPath)
{
typedef agg::conv_curve<agg::path_storage> conv_crv_type;
agg::path_storage p_copy(m_agg_ps);
conv_crv_type p3(p_copy);
m_agg_ps.join_path(p3, 0);
return Ok;
}
inline Status AddArc(double x, double y, double width, double height, double startAngle, double sweepAngle)
{
if(sweepAngle >= 360.0)
{
sweepAngle = 360;
}
agg::bezier_arc arc(x+width/2.00, y+height/2.00, width/2.00, height/2.00, agg::deg2rad(startAngle), agg::deg2rad(sweepAngle));
//2.3 m_agg_ps.add_path(arc, 0, !z_is_poly_closed());
if (Is_poly_closed())
{
m_agg_ps.concat_path(arc, 0);
}
else
{
m_agg_ps.join_path(arc, 0);
}
return Ok;
}
ULONG GetPointCount() const
{
ULONG nPointCount=0;
ULONG nTotal = m_agg_ps.total_vertices();
double x, y;
for(ULONG i = 0; i < nTotal; ++i)
{
ULONG nTip = m_agg_ps.vertex(i, &x, &y);
if(nTip)
{
if (!(nTip & agg::path_flags_close))
{
++nPointCount;
}
}
}
return nPointCount;
}
Status GetPathPoints(PointF* points, int count) const
{
int nTotal = m_agg_ps.total_vertices();
double x, y;
int i = 0, k = 0;
while (k < count && i < nTotal)
{
unsigned int nTip = m_agg_ps.vertex(i, &x, &y);
if (nTip)
{
if(!(nTip & agg::path_flags_close))
{
points[k].X = float(x);
points[k].Y = float(y);
++k;
}
}
++i;
}
return Ok;
}
Status GetLastPoint(double& x, double& y)
{
m_agg_ps.last_vertex(&x, &y);
return Ok;
}
Status GetPathPoints(double* points, int count) const
{
int nTotal = m_agg_ps.total_vertices();
double x, y;
int i = 0, k = 0;
while (k < count && i < nTotal)
{
unsigned int nTip = m_agg_ps.vertex(i, &x, &y);
if (nTip)
{
if(!(nTip & agg::path_flags_close))
{
points[2 * k] = x;
points[2 * k + 1] = y;
++k;
}
}
++i;
}
return Ok;
}
void GetBounds(double& left, double& top, double& width, double& height)
{
unsigned int nTotal = m_agg_ps.total_vertices();
if (nTotal)
{
agg::rect_d bounds(1e100, 1e100, -1e100, -1e100);
double x, y;
for(unsigned int i = 0; i < nTotal; i++)
{
unsigned int nTip = m_agg_ps.vertex(i, &x, &y);
if(agg::is_vertex(nTip))
{
if(x < bounds.x1) bounds.x1 = x;
if(y < bounds.y1) bounds.y1 = y;
if(x > bounds.x2) bounds.x2 = x;
if(y > bounds.y2) bounds.y2 = y;
}
}
left = bounds.x1;
top = bounds.y1;
width = (bounds.x2 - bounds.x1);
height = (bounds.y2 - bounds.y1);
}
else
{
left = 0;
top = 0;
width = 0;
height = 0;
}
}
Status Transform(const CMatrix* matrix)
{
if (NULL != matrix)
{
agg::path_storage p2(m_agg_ps);
agg::conv_transform<agg::path_storage> trans(p2, matrix->m_agg_mtx);
m_agg_ps.remove_all();
//2.3 m_agg_ps.add_path(trans, 0, false);
m_agg_ps.concat_path(trans, 0);
}
return Ok;
}
virtual bool _MoveTo(double x, double y)
{
return (Ok == MoveTo(x, y));
}
virtual bool _LineTo(double x, double y)
{
return (Ok == LineTo(x, y));
}
virtual bool _CurveTo(double x1, double y1, double x2, double y2, double x3, double y3)
{
return (Ok == CurveTo(x1, y1, x2, y2, x3, y3));
}
virtual bool _Close()
{
return (Ok == CloseFigure());
}
Status AddString(BSTR bstrText, IASCFontManager* pFont, double x, double y)
{
if (NULL == pFont)
return InvalidParameter;
pFont->LoadString(bstrText, (float)x, (float)y);
CASCFontManager* pMan = (CASCFontManager*)pFont;
return (S_OK == pMan->GetStringPath3(this)) ? Ok : InvalidParameter;
}
void z_Stroke(const NSStructures::CPen* Pen)
{
if (NULL == Pen)
return;
typedef agg::conv_stroke<agg::path_storage> Path_Conv_Stroke;
Path_Conv_Stroke pg(m_agg_ps);
pg.line_join(agg::round_join);
pg.line_cap(agg::round_cap);
pg.approximation_scale(25.00);
//pg.miter_limit(0.50);
pg.width(Pen->Size);
//pg.auto_detect_orientation(true);
agg::path_storage psNew;
//2.3 psNew.add_path(pg, 0, false);
psNew.concat_path(pg, 0);
m_agg_ps = psNew;
}
void Widen(const NSStructures::CPen* Pen, const CMatrix* matrix, float flatness)
{
if (NULL == Pen || NULL == matrix || 0.0f == flatness)
return;
typedef agg::conv_curve<agg::path_storage> conv_crv_type;
typedef agg::conv_contour<conv_crv_type> Path_Conv_Contour;
conv_crv_type crv(m_agg_ps);
Path_Conv_Contour pg(crv);
pg.miter_limit(0.50);
//pg.miter_limit_theta(0.05);
//pg.approximation_scale(2.00);
pg.width(Pen->Size);
agg::line_join_e LineJoin;
switch (Pen->LineJoin)
{
case LineJoinMiter : LineJoin=agg::miter_join; break;
case LineJoinBevel : LineJoin=agg::bevel_join; break;
default:
case LineJoinRound : LineJoin=agg::round_join; break;
case LineJoinMiterClipped: LineJoin=agg::miter_join_revert; break;
}
pg.line_join(LineJoin);
pg.auto_detect_orientation(false);
agg::path_storage psNew;
//2.3 psNew.add_path(pg, 0, false);
//m_agg_ps.concat_path(pg, 0);
m_agg_ps.concat_path(pg, 0);
m_agg_ps = psNew;
}
agg::path_storage *z_get_agg_path_storage() { return(&m_agg_ps); }
public:
agg::path_storage m_agg_ps;
bool m_bEvenOdd;
bool m_bIsMoveTo;
public:
int EllipseArc(double fX, double fY, double fXRad, double fYRad, double fAngle1, double fAngle2, BOOL bClockDirection)
{
int nRet = 0;
while ( fAngle1 < 0 )
fAngle1 += 360;
while ( fAngle1 > 360 )
fAngle1 -= 360;
while ( fAngle2 < 0 )
fAngle2 += 360;
while ( fAngle2 >= 360 )
fAngle2 -= 360;
if ( !bClockDirection )
{
if ( fAngle1 <= fAngle2 )
nRet = EllipseArc2( fX, fY, fXRad, fYRad, fAngle1, fAngle2, FALSE );
else
{
nRet += EllipseArc2( fX, fY, fXRad, fYRad, fAngle1, 360, FALSE );
nRet += EllipseArc2( fX, fY, fXRad, fYRad, 0, fAngle2, FALSE );
}
}
else
{
if ( fAngle1 >= fAngle2 )
nRet = EllipseArc2( fX, fY, fXRad, fYRad, fAngle1, fAngle2, TRUE );
else
{
nRet += EllipseArc2( fX, fY, fXRad, fYRad, fAngle1, 0, TRUE );
nRet += EllipseArc2( fX, fY, fXRad, fYRad, 360, fAngle2, TRUE );
}
}
return nRet;
}
double AngToEllPrm(double fAngle, double fXRad, double fYRad)
{
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// <20>.<2E>. x= a cos(t) y = b sin(t) - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
// x = r cos(p), y = r sin(p) => t = atan2( sin(p) / b, cos(p) / a );
return atan2( sin( fAngle ) / fYRad, cos( fAngle ) / fXRad );
}
int EllipseArc2(double fX, double fY, double fXRad, double fYRad, double fAngle1, double fAngle2, BOOL bClockDirection)
{
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
int nRet = 0;
double dAngle1 = fAngle1 * 3.141592 / 180;
double dAngle2 = fAngle2 * 3.141592 / 180;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
unsigned int nFirstPointQuard = int(fAngle1) / 90 + 1;
unsigned int nSecondPointQuard = int(fAngle2) / 90 + 1;
nSecondPointQuard = min( 4, max( 1, nSecondPointQuard ) );
nFirstPointQuard = min( 4, max( 1, nFirstPointQuard ) );
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
double fStartX = 0.0, fStartY = 0.0, fEndX = 0.0, fEndY = 0.0;
fStartX = fX + fXRad * cos( AngToEllPrm( dAngle1, fXRad, fYRad ) );
fStartY = fY + fYRad * sin( AngToEllPrm( dAngle1, fXRad, fYRad ) );
LineTo(fStartX, fStartY);
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
double fCurX = fStartX, fCurY = fStartY;
double dStartAngle = dAngle1;
double dEndAngle = 0;
if ( !bClockDirection )
{
for( unsigned int nIndex = nFirstPointQuard; nIndex <= nSecondPointQuard; nIndex++ )
{
if ( nIndex == nSecondPointQuard )
dEndAngle = dAngle2;
else
dEndAngle = (90 * (nIndex ) ) * 3.141592f / 180;
if ( !( nIndex == nFirstPointQuard ) )
dStartAngle = (90 * (nIndex - 1 ) ) * 3.141592f / 180;
EllipseArc3(fX, fY, fXRad, fYRad, AngToEllPrm( dStartAngle, fXRad, fYRad ), AngToEllPrm( dEndAngle, fXRad, fYRad ), &fEndX, &fEndY, FALSE);
}
}
else
{
for( unsigned int nIndex = nFirstPointQuard; nIndex >= nSecondPointQuard; nIndex-- )
{
if ( nIndex == nFirstPointQuard )
dStartAngle = dAngle1;
else
dStartAngle = (90 * (nIndex ) ) * 3.141592f / 180;
if ( !( nIndex == nSecondPointQuard ) )
dEndAngle = (90 * (nIndex - 1 ) ) * 3.141592f / 180;
else
dEndAngle = dAngle2;
EllipseArc3(fX, fY, fXRad, fYRad, AngToEllPrm( dStartAngle, fXRad, fYRad ), AngToEllPrm( dEndAngle, fXRad, fYRad ), &fEndX, &fEndY, FALSE);
}
}
return nRet;
}
int EllipseArc3(double fX, double fY, double fXRad, double fYRad, double dAngle1, double dAngle2, double *pfXCur, double *pfYCur, BOOL bClockDirection = FALSE)
{
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
double fX1 = 0.0, fX2 = 0.0, fY1 = 0.0, fY2 = 0.0;
double fCX1 = 0.0, fCX2 = 0.0, fCY1 = 0.0, fCY2 = 0.0;
double fAlpha = sin( dAngle2 - dAngle1 ) * ( sqrt( 4.0 + 3.0 * tan( (dAngle2 - dAngle1) / 2.0 ) * tan( (dAngle2 - dAngle1) / 2.0 ) ) - 1.0 ) / 3.0;
double fKoef = 1;
fX1 = fX + fXRad * cos( dAngle1 );
fY1 = fY + fYRad * sin( dAngle1 );
fX2 = fX + fXRad * cos( dAngle2 );
fY2 = fY + fYRad * sin( dAngle2 );
fCX1 = fX1 - fAlpha * fXRad * sin ( dAngle1 );
fCY1 = fY1 + fAlpha * fYRad * cos ( dAngle1 );
fCX2 = fX2 + fAlpha * fXRad * sin ( dAngle2 );
fCY2 = fY2 - fAlpha * fYRad * cos ( dAngle2 );
if ( !bClockDirection )
{
CurveTo(fCX1, fCY1, fCX2, fCY2, fX2, fY2);
*pfXCur = fX2;
*pfYCur = fY2;
}
else
{
CurveTo(fCX2, fCY2, fCX1, fCY1, fX1, fY1);
*pfXCur = fX1;
*pfYCur = fY1;
}
return 0;
}
int Ellipse(double fX, double fY, double fXRad, double fYRad)
{
MoveTo(fX - fXRad, fY);
double c_fKappa = 0.552;
CurveTo(fX - fXRad, fY + fYRad * c_fKappa, fX - fXRad * c_fKappa, fY + fYRad, fX, fY + fYRad);
CurveTo(fX + fXRad * c_fKappa, fY + fYRad, fX + fXRad, fY + fYRad * c_fKappa, fX + fXRad, fY);
CurveTo(fX + fXRad, fY - fYRad * c_fKappa, fX + fXRad * c_fKappa, fY - fYRad, fX, fY - fYRad);
CurveTo(fX - fXRad * c_fKappa, fY - fYRad, fX - fXRad, fY - fYRad * c_fKappa, fX - fXRad, fY);
return 0;
}
Status AddArc2(double fX, double fY, double fWidth, double fHeight, double fStartAngle, double fSweepAngle)
{
if (0 >= fWidth || 0 >= fHeight)
return InvalidParameter;
if ( Is_poly_closed() )
{
double dStartAngle = fStartAngle * agg::pi / 180;
double fStartX = fX + fWidth / 2.0 + fWidth / 2 * cos( AngToEllPrm( dStartAngle, fWidth / 2, fHeight / 2 ) );
double fStartY = fY + fHeight / 2.0 - fHeight / 2 * sin( AngToEllPrm ( dStartAngle, fWidth / 2, fHeight / 2 ) );
// <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AppendEllipse, <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MoveTo <20><><EFBFBD> <20><><EFBFBD><EFBFBD>
if ( fSweepAngle < 360 )
if ( Ok != MoveTo( fStartX, fStartY ) )
return GenericError;
}
BOOL bClockDirection = FALSE;
double fEndAngle = 360 - ( fSweepAngle + fStartAngle );
double fSrtAngle = 360 - fStartAngle;
if( fSweepAngle > 0 )
bClockDirection = TRUE;
if( abs(fSweepAngle) >= 360 ) // <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
return (0 == Ellipse(fX + fWidth / 2, fY + fHeight / 2, fWidth / 2, fHeight / 2)) ? Ok : GenericError;
}
else // <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
return (0 == EllipseArc(fX + fWidth / 2, fY + fHeight / 2, fWidth / 2, fHeight / 2, fSrtAngle, fEndAngle, bClockDirection)) ? Ok : GenericError;
}
return Ok;
}
};
class CGraphicsPathSimpleConverter : public ISimpleGraphicsPath
{
friend class CASCFontManager;
private:
IASCRenderer* m_pRenderer;
bool m_bEvenOdd;
bool m_bIsMoveTo;
bool m_bIsClosed;
agg::path_storage m_agg_ps;
public:
CGraphicsPathSimpleConverter()
{
m_pRenderer = NULL;
m_bEvenOdd = false;
m_bIsMoveTo = false;
m_bIsClosed = false;
}
~CGraphicsPathSimpleConverter()
{
RELEASEINTERFACE(m_pRenderer);
}
public:
inline void SetRenderer(IASCRenderer* pRenderer)
{
RELEASEINTERFACE(m_pRenderer);
m_pRenderer = pRenderer;
ADDREFINTERFACE(m_pRenderer);
}
inline IASCRenderer* GetRenderer(BOOL bIsAddref = FALSE)
{
if (bIsAddref)
{
ADDREFINTERFACE(m_pRenderer);
}
return m_pRenderer;
}
public:
inline bool PathCommandMoveTo(double fX, double fY)
{
return _MoveTo(fX, fY);
}
inline bool PathCommandLineTo(double fX, double fY)
{
return _LineTo(fX, fY);
}
inline bool PathCommandLinesTo(SAFEARRAY* pPoints)
{
if (NULL == pPoints)
return false;
LONG lCount = pPoints->rgsabound[0].cElements;
double * pData = (double*)pPoints->pvData;
if (2 == lCount)
{
return _LineTo(pData[0], pData[1]);
}
if (4 > lCount)
{
return false;
}
int nRet = 0;
if (!m_bIsMoveTo)
{
_MoveTo(pData[0], pData[1]);
}
int n = (lCount / 2) - 1;
for (int i = 1; i <= n; ++i)
{
double* points = &pData[i * 2];
_LineTo(points[0], points[1]);
}
return true;
}
inline bool PathCommandCurveTo(double fX1, double fY1, double fX2, double fY2, double fX3, double fY3)
{
return _CurveTo(fX1, fY1, fX2, fY2, fX3, fY3);
}
inline bool PathCommandCurvesTo(SAFEARRAY* pPoints)
{
if (NULL == pPoints)
return S_FALSE;
LONG lCount = pPoints->rgsabound[0].cElements;
double * pData = (double*)pPoints->pvData;
if (8 > lCount)
return false;
if (!m_bIsMoveTo)
{
_MoveTo(pData[0], pData[1]);
pData += 2;
lCount -= 2;
}
else
{
_LineTo(pData[0], pData[1]);
pData += 2;
lCount -= 2;
}
double* points = pData;
int nCountTo = (lCount) / 6;
for (int i = 0; i < nCountTo; ++i)
{
points = pData + 6 * i;
_CurveTo(points[0], points[1], points[2], points[3], points[4], points[5]);
}
return true;
}
inline bool PathCommandArcTo(double fX, double fY, double fWidth, double fHeight, double fStartAngle, double fSweepAngle)
{
return AddArc(fX, fY, fWidth, fHeight, -fStartAngle, -fSweepAngle);
}
inline bool PathCommandClose()
{
return _Close();
}
inline bool PathCommandEnd()
{
return _Reset();
}
inline bool PathCommandStart()
{
return _Start();
}
inline bool PathCommandGetCurrentPoint(double* fX, double* fY)
{
m_agg_ps.last_vertex(fX, fY);
return true;
}
inline bool PathCommandText(BSTR bsText, IASCFontManager* pManager, double fX, double fY, double fWidth, double fHeight, double fBaseLineOffset)
{
return AddString(bsText, pManager, fX, fY + fBaseLineOffset);
}
inline bool PathCommandTextEx(BSTR bsText, BSTR bsGidText, BSTR bsSourceCodeText, IASCFontManager* pManager, double fX, double fY, double fWidth, double fHeight, double fBaseLineOffset, DWORD lFlags)
{
if (NULL != bsGidText)
{
return PathCommandText(bsGidText, pManager, fX, fY, fWidth, fHeight, fBaseLineOffset);
}
return PathCommandText(bsText, pManager, fX, fY, fWidth, fHeight, fBaseLineOffset);
}
inline bool PathCommandGetBounds(double& left, double& top, double& width, double &height)
{
unsigned int nTotal = m_agg_ps.total_vertices();
if (nTotal)
{
agg::rect_d bounds(1e100, 1e100, -1e100, -1e100);
double x, y;
for(unsigned int i = 0; i < nTotal; i++)
{
unsigned int nTip = m_agg_ps.vertex(i, &x, &y);
if(agg::is_vertex(nTip))
{
if(x < bounds.x1) bounds.x1 = x;
if(y < bounds.y1) bounds.y1 = y;
if(x > bounds.x2) bounds.x2 = x;
if(y > bounds.y2) bounds.y2 = y;
}
}
left = bounds.x1;
top = bounds.y1;
width = (bounds.x2 - bounds.x1);
height = (bounds.y2 - bounds.y1);
}
else
{
left = 0;
top = 0;
width = 0;
height = 0;
}
return true;
}
public:
virtual bool _MoveTo(double x, double y)
{
m_bIsMoveTo = true;
m_agg_ps.move_to(x, y);
if (NULL != m_pRenderer)
{
m_pRenderer->BeginCommand(c_nSimpleGraphicType);
m_pRenderer->PathCommandMoveTo(x, y);
m_pRenderer->EndCommand(c_nSimpleGraphicType);
}
return true;
}
virtual bool _LineTo(double x, double y)
{
if (!m_bIsMoveTo)
{
_MoveTo(x, y);
}
m_agg_ps.line_to(x, y);
if (NULL != m_pRenderer)
{
m_pRenderer->BeginCommand(c_nSimpleGraphicType);
m_pRenderer->PathCommandLineTo(x, y);
m_pRenderer->EndCommand(c_nSimpleGraphicType);
}
return true;
}
virtual bool _CurveTo(double x1, double y1, double x2, double y2, double x3, double y3)
{
if (!m_bIsMoveTo)
{
_MoveTo(x1, y1);
}
m_agg_ps.curve4(x1, y1, x2, y2, x3, y3);
if (NULL != m_pRenderer)
{
m_pRenderer->BeginCommand(c_nSimpleGraphicType);
m_pRenderer->PathCommandCurveTo(x1, y1, x2, y2, x3, y3);
m_pRenderer->EndCommand(c_nSimpleGraphicType);
}
return true;
}
virtual bool _Close()
{
m_bIsClosed = true;
m_agg_ps.close_polygon();
if (NULL != m_pRenderer)
{
m_pRenderer->BeginCommand(c_nSimpleGraphicType);
m_pRenderer->PathCommandClose();
m_pRenderer->EndCommand(c_nSimpleGraphicType);
}
return true;
}
inline bool _Reset()
{
m_bEvenOdd = false;
m_bIsMoveTo = false;
m_bIsClosed = false;
m_agg_ps.remove_all();
if (NULL != m_pRenderer)
{
m_pRenderer->BeginCommand(c_nSimpleGraphicType);
m_pRenderer->PathCommandEnd();
m_pRenderer->EndCommand(c_nSimpleGraphicType);
}
return true;
}
inline bool _Start()
{
m_agg_ps.start_new_path();
if (NULL != m_pRenderer)
{
m_pRenderer->BeginCommand(c_nSimpleGraphicType);
m_pRenderer->PathCommandStart();
m_pRenderer->EndCommand(c_nSimpleGraphicType);
}
return true;
}
protected:
bool AddString(BSTR bstrText, IASCFontManager* pFont, double x, double y)
{
if (NULL == pFont)
return false;
pFont->LoadString(bstrText, (float)x, (float)y);
CASCFontManager* pMan = (CASCFontManager*)pFont;
return (S_OK == pMan->GetStringPath3(this)) ? true : false;
}
int EllipseArc(double fX, double fY, double fXRad, double fYRad, double fAngle1, double fAngle2, BOOL bClockDirection)
{
int nRet = 0;
while ( fAngle1 < 0 )
fAngle1 += 360;
while ( fAngle1 > 360 )
fAngle1 -= 360;
while ( fAngle2 < 0 )
fAngle2 += 360;
while ( fAngle2 >= 360 )
fAngle2 -= 360;
if ( !bClockDirection )
{
if ( fAngle1 <= fAngle2 )
nRet = EllipseArc2( fX, fY, fXRad, fYRad, fAngle1, fAngle2, FALSE );
else
{
nRet += EllipseArc2( fX, fY, fXRad, fYRad, fAngle1, 360, FALSE );
nRet += EllipseArc2( fX, fY, fXRad, fYRad, 0, fAngle2, FALSE );
}
}
else
{
if ( fAngle1 >= fAngle2 )
nRet = EllipseArc2( fX, fY, fXRad, fYRad, fAngle1, fAngle2, TRUE );
else
{
nRet += EllipseArc2( fX, fY, fXRad, fYRad, fAngle1, 0, TRUE );
nRet += EllipseArc2( fX, fY, fXRad, fYRad, 360, fAngle2, TRUE );
}
}
return nRet;
}
double AngToEllPrm(double fAngle, double fXRad, double fYRad)
{
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// <20>.<2E>. x= a cos(t) y = b sin(t) - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
// x = r cos(p), y = r sin(p) => t = atan2( sin(p) / b, cos(p) / a );
return atan2( sin( fAngle ) / fYRad, cos( fAngle ) / fXRad );
}
int EllipseArc2(double fX, double fY, double fXRad, double fYRad, double fAngle1, double fAngle2, BOOL bClockDirection)
{
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
int nRet = 0;
double dAngle1 = fAngle1 * 3.141592 / 180;
double dAngle2 = fAngle2 * 3.141592 / 180;
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
unsigned int nFirstPointQuard = int(fAngle1) / 90 + 1;
unsigned int nSecondPointQuard = int(fAngle2) / 90 + 1;
nSecondPointQuard = min( 4, max( 1, nSecondPointQuard ) );
nFirstPointQuard = min( 4, max( 1, nFirstPointQuard ) );
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
double fStartX = 0.0, fStartY = 0.0, fEndX = 0.0, fEndY = 0.0;
fStartX = fX + fXRad * cos( AngToEllPrm( dAngle1, fXRad, fYRad ) );
fStartY = fY + fYRad * sin( AngToEllPrm( dAngle1, fXRad, fYRad ) );
_LineTo(fStartX, fStartY);
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
double fCurX = fStartX, fCurY = fStartY;
double dStartAngle = dAngle1;
double dEndAngle = 0;
if ( !bClockDirection )
{
for( unsigned int nIndex = nFirstPointQuard; nIndex <= nSecondPointQuard; nIndex++ )
{
if ( nIndex == nSecondPointQuard )
dEndAngle = dAngle2;
else
dEndAngle = (90 * (nIndex ) ) * 3.141592f / 180;
if ( !( nIndex == nFirstPointQuard ) )
dStartAngle = (90 * (nIndex - 1 ) ) * 3.141592f / 180;
EllipseArc3(fX, fY, fXRad, fYRad, AngToEllPrm( dStartAngle, fXRad, fYRad ), AngToEllPrm( dEndAngle, fXRad, fYRad ), &fEndX, &fEndY, FALSE);
}
}
else
{
for( unsigned int nIndex = nFirstPointQuard; nIndex >= nSecondPointQuard; nIndex-- )
{
if ( nIndex == nFirstPointQuard )
dStartAngle = dAngle1;
else
dStartAngle = (90 * (nIndex ) ) * 3.141592f / 180;
if ( !( nIndex == nSecondPointQuard ) )
dEndAngle = (90 * (nIndex - 1 ) ) * 3.141592f / 180;
else
dEndAngle = dAngle2;
EllipseArc3(fX, fY, fXRad, fYRad, AngToEllPrm( dStartAngle, fXRad, fYRad ), AngToEllPrm( dEndAngle, fXRad, fYRad ), &fEndX, &fEndY, FALSE);
}
}
return nRet;
}
int EllipseArc3(double fX, double fY, double fXRad, double fYRad, double dAngle1, double dAngle2, double *pfXCur, double *pfYCur, BOOL bClockDirection = FALSE)
{
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
double fX1 = 0.0, fX2 = 0.0, fY1 = 0.0, fY2 = 0.0;
double fCX1 = 0.0, fCX2 = 0.0, fCY1 = 0.0, fCY2 = 0.0;
double fAlpha = sin( dAngle2 - dAngle1 ) * ( sqrt( 4.0 + 3.0 * tan( (dAngle2 - dAngle1) / 2.0 ) * tan( (dAngle2 - dAngle1) / 2.0 ) ) - 1.0 ) / 3.0;
double fKoef = 1;
fX1 = fX + fXRad * cos( dAngle1 );
fY1 = fY + fYRad * sin( dAngle1 );
fX2 = fX + fXRad * cos( dAngle2 );
fY2 = fY + fYRad * sin( dAngle2 );
fCX1 = fX1 - fAlpha * fXRad * sin ( dAngle1 );
fCY1 = fY1 + fAlpha * fYRad * cos ( dAngle1 );
fCX2 = fX2 + fAlpha * fXRad * sin ( dAngle2 );
fCY2 = fY2 - fAlpha * fYRad * cos ( dAngle2 );
if ( !bClockDirection )
{
_CurveTo(fCX1, fCY1, fCX2, fCY2, fX2, fY2);
*pfXCur = fX2;
*pfYCur = fY2;
}
else
{
_CurveTo(fCX2, fCY2, fCX1, fCY1, fX1, fY1);
*pfXCur = fX1;
*pfYCur = fY1;
}
return 0;
}
int Ellipse(double fX, double fY, double fXRad, double fYRad)
{
_MoveTo(fX - fXRad, fY);
double c_fKappa = 0.552;
_CurveTo(fX - fXRad, fY + fYRad * c_fKappa, fX - fXRad * c_fKappa, fY + fYRad, fX, fY + fYRad);
_CurveTo(fX + fXRad * c_fKappa, fY + fYRad, fX + fXRad, fY + fYRad * c_fKappa, fX + fXRad, fY);
_CurveTo(fX + fXRad, fY - fYRad * c_fKappa, fX + fXRad * c_fKappa, fY - fYRad, fX, fY - fYRad);
_CurveTo(fX - fXRad * c_fKappa, fY - fYRad, fX - fXRad, fY - fYRad * c_fKappa, fX - fXRad, fY);
return 0;
}
bool AddArc(double fX, double fY, double fWidth, double fHeight, double fStartAngle, double fSweepAngle)
{
if (0 >= fWidth || 0 >= fHeight)
return false;
if ( Is_poly_closed() )
{
double dStartAngle = fStartAngle * agg::pi / 180;
double fStartX = fX + fWidth / 2.0 + fWidth / 2 * cos( AngToEllPrm( dStartAngle, fWidth / 2, fHeight / 2 ) );
double fStartY = fY + fHeight / 2.0 - fHeight / 2 * sin( AngToEllPrm ( dStartAngle, fWidth / 2, fHeight / 2 ) );
// <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AppendEllipse, <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MoveTo <20><><EFBFBD> <20><><EFBFBD><EFBFBD>
if ( fSweepAngle < 360 )
if ( false == _MoveTo( fStartX, fStartY ) )
return false;
}
BOOL bClockDirection = FALSE;
double fEndAngle = 360 - ( fSweepAngle + fStartAngle );
double fSrtAngle = 360 - fStartAngle;
if( fSweepAngle > 0 )
bClockDirection = TRUE;
if( abs(fSweepAngle) >= 360 ) // <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
return (0 == Ellipse(fX + fWidth / 2, fY + fHeight / 2, fWidth / 2, fHeight / 2)) ? true : false;
}
else // <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
return (0 == EllipseArc(fX + fWidth / 2, fY + fHeight / 2, fWidth / 2, fHeight / 2, fSrtAngle, fEndAngle, bClockDirection)) ? true : false;
}
return Ok;
}
inline bool Is_poly_closed()
{
if (!m_agg_ps.total_vertices())
return true;
double x, y;
unsigned int nTip = m_agg_ps.last_vertex(&x, &y);
if (nTip & agg::path_flags_close)
return true;
return false;
}
};
}
Reference in New Issue View Git Blame Copy Permalink