gdipluspath.h

vc6.0完整版

/**************************************************************************\
*
* Copyright (c) 1998-2001, Microsoft Corp.  All Rights Reserved.
*
* Module Name:
*
*   GdiplusPath.h
*
* Abstract:
*
*   GDI+ Graphics Path class
*
\**************************************************************************/

#ifndef _GDIPLUSPATH_H
#define _GDIPLUSPATH_H

class GraphicsPath : public GdiplusBase
{
public:
    friend class Graphics;
    friend class Region;
    friend class PathGradientBrush;
    friend class GraphicsPathIterator;
    friend class CustomLineCap;

    GraphicsPath(IN FillMode fillMode = FillModeAlternate)
    {
        nativePath = NULL;
        lastResult = DllExports::GdipCreatePath(fillMode, &nativePath);
    }

    GraphicsPath(IN const PointF* points,
                 IN const BYTE* types,
                 IN INT count,
                 IN FillMode fillMode = FillModeAlternate)
    {
        nativePath = NULL;
        lastResult = DllExports::GdipCreatePath2(points,
                                                 types,
                                                 count,
                                                 fillMode,
                                                 &nativePath);
    }

    GraphicsPath(IN const Point* points,
                 IN const BYTE* types,
                 IN INT count,
                 IN FillMode fillMode = FillModeAlternate)
    {
        nativePath = NULL;
        lastResult = DllExports::GdipCreatePath2I(points,
                                                  types,
                                                  count,
                                                  fillMode,
                                                  &nativePath);
    }

    ~GraphicsPath()
    {
        DllExports::GdipDeletePath(nativePath);
    }

    GraphicsPath* Clone() const
    {
        GpPath *clonepath = NULL;

        SetStatus(DllExports::GdipClonePath(nativePath, &clonepath));

        return new GraphicsPath(clonepath);
    }

    // Reset the path object to empty (and fill mode to FillModeAlternate)

    Status Reset()
    {
        return SetStatus(DllExports::GdipResetPath(nativePath));
    }

    FillMode GetFillMode() const
    {
        FillMode fillmode = FillModeAlternate;

        SetStatus(DllExports::GdipGetPathFillMode(nativePath, &fillmode));

        return fillmode;
    }

    Status SetFillMode(IN FillMode fillmode)
    {
        return SetStatus(DllExports::GdipSetPathFillMode(nativePath, 
                                                         fillmode));
    }

    Status GetPathData(OUT PathData* pathData) const
    {
        if (pathData == NULL) 
        {
            return SetStatus(InvalidParameter);
        }
        
        INT count = GetPointCount();
        
        if ((count <= 0) || (pathData->Count>0 && pathData->Count<count))
        {
            pathData->Count = 0;
            if (pathData->Points)
            {
                delete pathData->Points;
                pathData->Points = NULL;
            }

            if (pathData->Types) 
            {
                delete pathData->Types;
                pathData->Types = NULL;
            }

            if (count <= 0)
            {
                return lastResult;
            }
        }

        if (pathData->Count == 0) 
        {
            pathData->Points = new PointF[count];
            if (pathData->Points == NULL) 
            {
                return SetStatus(OutOfMemory);
            
            }
            pathData->Types = new byte[count];
            if (pathData->Types == NULL) 
            {
                delete pathData->Points;
                pathData->Points = NULL;

                return SetStatus(OutOfMemory);
            }
            pathData->Count = count;
        }

        return SetStatus(DllExports::GdipGetPathData(nativePath, pathData));
    }

    Status StartFigure()
    {
        return SetStatus(DllExports::GdipStartPathFigure(nativePath));
    }

    Status CloseFigure()
    {
        return SetStatus(DllExports::GdipClosePathFigure(nativePath));
    }

    Status CloseAllFigures()
    {
        return SetStatus(DllExports::GdipClosePathFigures(nativePath));
    }

    Status SetMarker()
    {
        return SetStatus(DllExports::GdipSetPathMarker(nativePath));
    }

    Status ClearMarkers()
    {
        return SetStatus(DllExports::GdipClearPathMarkers(nativePath));
    }

    Status Reverse()
    {
        return SetStatus(DllExports::GdipReversePath(nativePath));
    }

    Status GetLastPoint(OUT PointF* lastPoint) const
    {
        return SetStatus(DllExports::GdipGetPathLastPoint(nativePath, 
                                                          lastPoint));
    }

    Status AddLine(IN const PointF& pt1, 
                   IN const PointF& pt2)
    {
        return AddLine(pt1.X, pt1.Y, pt2.X, pt2.Y);
    }

    Status AddLine(IN REAL x1,
                   IN REAL y1, 
                   IN REAL x2, 
                   IN REAL y2)
    {
        return SetStatus(DllExports::GdipAddPathLine(nativePath, x1, y1, 
                                                     x2, y2));
    }

    Status AddLines(IN const PointF* points, 
                    IN INT count)
    {
        return SetStatus(DllExports::GdipAddPathLine2(nativePath, points, 
                                                      count));
    }

    Status AddLine(IN const Point& pt1, 
                   IN const Point& pt2)
    {
        return AddLine(pt1.X,
                       pt1.Y,
                       pt2.X,
                       pt2.Y);
    }

    Status AddLine(IN INT x1, 
                   IN INT y1, 
                   IN INT x2, 
                   IN INT y2)
    {
        return SetStatus(DllExports::GdipAddPathLineI(nativePath,
                                                     x1,
                                                     y1,
                                                     x2,
                                                     y2));
    }

    Status AddLines(IN const Point* points, 
                    IN INT count)
    {
        return SetStatus(DllExports::GdipAddPathLine2I(nativePath,
                                                       points,
                                                       count));
    }

    Status AddArc(IN const RectF& rect, 
                  IN REAL startAngle, 
                  IN REAL sweepAngle)
    {
        return AddArc(rect.X, rect.Y, rect.Width, rect.Height,
                      startAngle, sweepAngle);
    }

    Status AddArc(IN REAL x, 
                  IN REAL y, 
                  IN REAL width, 
                  IN REAL height,
                  IN REAL startAngle, 
                  IN REAL sweepAngle)
    {
        return SetStatus(DllExports::GdipAddPathArc(nativePath, x, y, width, 
                                                    height, startAngle, 
                                                    sweepAngle));
    }

    Status AddArc(IN const Rect& rect, 
                  IN REAL startAngle, 
                  IN REAL sweepAngle)
    {
        return AddArc(rect.X, rect.Y, rect.Width, rect.Height,
                      startAngle, sweepAngle);
    }

    Status AddArc(IN INT x, 
                  IN INT y, 
                  IN INT width, 
                  IN INT height,
                  IN REAL startAngle, 
                  IN REAL sweepAngle)
    {
        return SetStatus(DllExports::GdipAddPathArcI(nativePath,
                                                    x,
                                                    y,
                                                    width,
                                                    height,
                                                    startAngle,
                                                    sweepAngle));
    }

    Status AddBezier(IN const PointF& pt1, 
                     IN const PointF& pt2,
                     IN const PointF& pt3, 
                     IN const PointF& pt4)
    {
        return AddBezier(pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X, pt3.Y, pt4.X,
                         pt4.Y);
    }

    Status AddBezier(IN REAL x1, 
                     IN REAL y1, 
                     IN REAL x2, 
                     IN REAL y2,
                     IN REAL x3, 
                     IN REAL y3, 
                     IN REAL x4, 
                     IN REAL y4)
    {
        return SetStatus(DllExports::GdipAddPathBezier(nativePath, x1, y1, x2, 
                                                       y2, x3, y3, x4, y4));
    }

    Status AddBeziers(IN const PointF* points, 
                      IN INT count)
    {
        return SetStatus(DllExports::GdipAddPathBeziers(nativePath, points, 
                                                        count));
    }

    Status AddBezier(IN const Point& pt1, 
                     IN const Point& pt2,
                     IN const Point& pt3, 
                     IN const Point& pt4)
    {
       return AddBezier(pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X, pt3.Y, pt4.X,
                        pt4.Y);
    }

    Status AddBezier(IN INT x1, 
                     IN INT y1, 
                     IN INT x2, 
                     IN INT y2,
                     IN INT x3,
                     IN INT y3, 
                     IN INT x4, 
                     IN INT y4)
    {
       return SetStatus(DllExports::GdipAddPathBezierI(nativePath,
                                                      x1,
                                                      y1,
                                                      x2,
                                                      y2,
                                                      x3,
                                                      y3,
                                                      x4,
                                                      y4));
    }

    Status AddBeziers(IN const Point* points,
                      IN INT count)
    {
       return SetStatus(DllExports::GdipAddPathBeziersI(nativePath,
                                                        points,
                                                        count));
    }

    Status AddCurve(IN const PointF* points, 
                    IN INT count)
    {
        return SetStatus(DllExports::GdipAddPathCurve(nativePath,
                                                      points,
                                                      count));
    }

    Status AddCurve(IN const PointF* points, 
                    IN INT count,
                    IN REAL tension)
    {
        return SetStatus(DllExports::GdipAddPathCurve2(nativePath,
                                                       points,
                                                       count,
                                                       tension));
    }

    Status AddCurve(IN const PointF* points, 
                    IN INT count, 
                    IN INT offset,
                    IN INT numberOfSegments, 
                    IN REAL tension)
    {
        return SetStatus(DllExports::GdipAddPathCurve3(nativePath,
                                                       points,
                                                       count,
                                                       offset,
                                                       numberOfSegments,
                                                       tension));
    }

    Status AddCurve(IN const Point* points, 
                    IN INT count)
    {
       return SetStatus(DllExports::GdipAddPathCurveI(nativePath,
                                                     points,
                                                     count));
    }

    Status AddCurve(IN const Point* points, 
                    IN INT count,