dcpsg.cpp

来自「A*算法 A*算法 A*算法 A*算法A*算法A*算法」· C++ 代码 · 共 2,062 行 · 第 1/5 页

        alpha1 = alpha2 = 0.0;
    }
    else
    {
        alpha1 = (x1 - xc == 0) ?
            (y1 - yc < 0) ? 90.0 : -90.0 :
                -atan2(double(y1-yc), double(x1-xc)) * RAD2DEG;
        alpha2 = (x2 - xc == 0) ?
            (y2 - yc < 0) ? 90.0 : -90.0 :
                -atan2(double(y2-yc), double(x2-xc)) * RAD2DEG;
    }
    while (alpha1 <= 0)   alpha1 += 360;
    while (alpha2 <= 0)   alpha2 += 360; // adjust angles to be between
    while (alpha1 > 360)  alpha1 -= 360; // 0 and 360 degree
    while (alpha2 > 360)  alpha2 -= 360;

    if (m_brush.GetStyle() != wxTRANSPARENT)
    {
        SetBrush( m_brush );

        PsPrintf( wxT("newpath\n")
                  wxT("%d %d %d %d %d %d ellipse\n")
                  wxT("%d %d lineto\n")
                  wxT("closepath\n")
                  wxT("fill\n"),
                LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
                LogicalToDeviceX(xc), LogicalToDeviceY(yc) );

        CalcBoundingBox( xc-radius, yc-radius );
        CalcBoundingBox( xc+radius, yc+radius );
    }

    if (m_pen.GetStyle() != wxTRANSPARENT)
    {
        SetPen( m_pen );

        PsPrintf( wxT("newpath\n")
                  wxT("%d %d %d %d %d %d ellipse\n")
                  wxT("%d %d lineto\n")
                  wxT("stroke\n")
                  wxT("fill\n"),
                LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
                LogicalToDeviceX(xc), LogicalToDeviceY(yc) );

        CalcBoundingBox( xc-radius, yc-radius );
        CalcBoundingBox( xc+radius, yc+radius );
    }
}

void wxPostScriptDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
{
    wxCHECK_RET( m_ok, wxT("invalid postscript dc") );

    if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
    if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
    if (sa<0) sa+=360;
    if (ea<0) ea+=360;

    if (sa==ea)
    {
        DrawEllipse(x,y,w,h);
        return;
    }

    if (m_brush.GetStyle () != wxTRANSPARENT)
    {
        SetBrush( m_brush );

        PsPrintf( wxT("newpath\n")
                  wxT("%d %d %d %d %d %d true ellipticarc\n"),
                  LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2),
                  LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2),
                  (wxCoord)sa, (wxCoord)ea );

        CalcBoundingBox( x ,y );
        CalcBoundingBox( x+w, y+h );
    }

    if (m_pen.GetStyle () != wxTRANSPARENT)
    {
        SetPen( m_pen );

        PsPrintf( wxT("newpath\n")
                  wxT("%d %d %d %d %d %d false ellipticarc\n"),
                LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2),
                LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2),
                (wxCoord)sa, (wxCoord)ea );

        CalcBoundingBox( x ,y );
        CalcBoundingBox( x+w, y+h );
    }
}

void wxPostScriptDC::DoDrawPoint (wxCoord x, wxCoord y)
{
    wxCHECK_RET( m_ok, wxT("invalid postscript dc") );

    if (m_pen.GetStyle() == wxTRANSPARENT) return;

    SetPen (m_pen);

    PsPrintf( wxT("newpath\n")
              wxT("%d %d moveto\n")
              wxT("%d %d lineto\n")
              wxT("stroke\n"),
            LogicalToDeviceX(x),   LogicalToDeviceY(y),
            LogicalToDeviceX(x+1), LogicalToDeviceY(y) );

    CalcBoundingBox( x, y );
}

void wxPostScriptDC::DoDrawPolygon (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
{
    wxCHECK_RET( m_ok, wxT("invalid postscript dc") );

    if (n <= 0) return;

    if (m_brush.GetStyle () != wxTRANSPARENT)
    {
        SetBrush( m_brush );

        PsPrint( "newpath\n" );

        wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
        wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);

        PsPrintf( wxT("%d %d moveto\n"), xx, yy );

        CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );

        for (int i = 1; i < n; i++)
        {
            xx = LogicalToDeviceX(points[i].x + xoffset);
            yy = LogicalToDeviceY(points[i].y + yoffset);

            PsPrintf( wxT("%d %d lineto\n"), xx, yy );

            CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
        }

        PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
    }

    if (m_pen.GetStyle () != wxTRANSPARENT)
    {
        SetPen( m_pen );

        PsPrint( "newpath\n" );

        wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
        wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);

        PsPrintf( wxT("%d %d moveto\n"), xx, yy );

        CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );

        for (int i = 1; i < n; i++)
        {
            xx = LogicalToDeviceX(points[i].x + xoffset);
            yy = LogicalToDeviceY(points[i].y + yoffset);

            PsPrintf( wxT("%d %d lineto\n"), xx, yy );

            CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
        }

        PsPrint( "closepath\n" );
        PsPrint( "stroke\n" );
    }
}

void wxPostScriptDC::DoDrawPolyPolygon (int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
{
    wxCHECK_RET( m_ok, wxT("invalid postscript dc") );

    if (n <= 0) return;

    if (m_brush.GetStyle () != wxTRANSPARENT)
    {
        SetBrush( m_brush );

        PsPrint( "newpath\n" );

        int ofs = 0;
        for (int i = 0; i < n; ofs += count[i++])
        {
            wxCoord xx = LogicalToDeviceX(points[ofs].x + xoffset);
            wxCoord yy = LogicalToDeviceY(points[ofs].y + yoffset);

            PsPrintf( wxT("%d %d moveto\n"), xx, yy );

            CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );

            for (int j = 1; j < count[i]; j++)
            {
                xx = LogicalToDeviceX(points[ofs+j].x + xoffset);
                yy = LogicalToDeviceY(points[ofs+j].y + yoffset);

                PsPrintf( wxT("%d %d lineto\n"), xx, yy );

                CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
            }
        }
        PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
    }

    if (m_pen.GetStyle () != wxTRANSPARENT)
    {
        SetPen( m_pen );

        PsPrint( "newpath\n" );

        int ofs = 0;
        for (int i = 0; i < n; ofs += count[i++])
        {
            wxCoord xx = LogicalToDeviceX(points[ofs].x + xoffset);
            wxCoord yy = LogicalToDeviceY(points[ofs].y + yoffset);

            PsPrintf( wxT("%d %d moveto\n"), xx, yy );

            CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );

            for (int j = 1; j < count[i]; j++)
            {
                xx = LogicalToDeviceX(points[ofs+j].x + xoffset);
                yy = LogicalToDeviceY(points[ofs+j].y + yoffset);

                PsPrintf( wxT("%d %d lineto\n"), xx, yy );

                CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
            }
        }
        PsPrint( "closepath\n" );
        PsPrint( "stroke\n" );
    }
}

void wxPostScriptDC::DoDrawLines (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
{
    wxCHECK_RET( m_ok, wxT("invalid postscript dc") );

    if (m_pen.GetStyle() == wxTRANSPARENT) return;

    if (n <= 0) return;

    SetPen (m_pen);

    int i;
    for ( i =0; i<n ; i++ )
    {
        CalcBoundingBox( LogicalToDeviceX(points[i].x+xoffset), LogicalToDeviceY(points[i].y+yoffset));
    }

    PsPrintf( wxT("newpath\n")
              wxT("%d %d moveto\n"),
              LogicalToDeviceX(points[0].x+xoffset),
              LogicalToDeviceY(points[0].y+yoffset) );

    for (i = 1; i < n; i++)
    {
        PsPrintf( wxT("%d %d lineto\n"),
                  LogicalToDeviceX(points[i].x+xoffset),
                  LogicalToDeviceY(points[i].y+yoffset) );
    }

    PsPrint( "stroke\n" );
}

void wxPostScriptDC::DoDrawRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
    wxCHECK_RET( m_ok, wxT("invalid postscript dc") );

    if (m_brush.GetStyle () != wxTRANSPARENT)
    {
        SetBrush( m_brush );

        PsPrintf( wxT("newpath\n")
                  wxT("%d %d moveto\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d lineto\n")
                  wxT("closepath\n")
                  wxT("fill\n"),
                LogicalToDeviceX(x),         LogicalToDeviceY(y),
                LogicalToDeviceX(x + width), LogicalToDeviceY(y),
                LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
                LogicalToDeviceX(x),         LogicalToDeviceY(y + height) );

        CalcBoundingBox( x, y );
        CalcBoundingBox( x + width, y + height );
    }

    if (m_pen.GetStyle () != wxTRANSPARENT)
    {
        SetPen (m_pen);

        PsPrintf( wxT("newpath\n")
                  wxT("%d %d moveto\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d lineto\n")
                  wxT("closepath\n")
                  wxT("stroke\n"),
                LogicalToDeviceX(x),         LogicalToDeviceY(y),
                LogicalToDeviceX(x + width), LogicalToDeviceY(y),
                LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
                LogicalToDeviceX(x),         LogicalToDeviceY(y + height) );

        CalcBoundingBox( x, y );
        CalcBoundingBox( x + width, y + height );
    }
}

void wxPostScriptDC::DoDrawRoundedRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
{
    wxCHECK_RET( m_ok, wxT("invalid postscript dc") );

    if (radius < 0.0)
    {
        // Now, a negative radius is interpreted to mean
        // 'the proportion of the smallest X or Y dimension'
        double smallest = width < height ? width : height;
        radius =  (-radius * smallest);
    }

    wxCoord rad = (wxCoord) radius;

    if (m_brush.GetStyle () != wxTRANSPARENT)
    {
        SetBrush( m_brush );

        /* Draw rectangle anticlockwise */
        PsPrintf( wxT("newpath\n")
                  wxT("%d %d %d 90 180 arc\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d %d 180 270 arc\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d %d 270 0 arc\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d %d 0 90 arc\n")
                  wxT("%d %d lineto\n")
                  wxT("closepath\n")
                  wxT("fill\n"),
                LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
                LogicalToDeviceX(x), LogicalToDeviceY(y + height - rad),
                LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
                LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
                LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
                LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
                LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
                LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );

        CalcBoundingBox( x, y );
        CalcBoundingBox( x + width, y + height );
    }

    if (m_pen.GetStyle () != wxTRANSPARENT)
    {
        SetPen (m_pen);

        /* Draw rectangle anticlockwise */
        PsPrintf( wxT("newpath\n")
                  wxT("%d %d %d 90 180 arc\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d %d 180 270 arc\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d %d 270 0 arc\n")
                  wxT("%d %d lineto\n")
                  wxT("%d %d %d 0 90 arc\n")
                  wxT("%d %d lineto\n")
                  wxT("closepath\n")
                  wxT("stroke\n"),
                LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
                LogicalToDeviceX(x), LogicalToDeviceY(y + height - rad),
                LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
                LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
                LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
                LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
                LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
                LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );

        CalcBoundingBox( x, y );
        CalcBoundingBox( x + width, y + height );
    }
}

void wxPostScriptDC::DoDrawEllipse (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
    wxCHECK_RET( m_ok, wxT("invalid postscript dc") );

    if (m_brush.GetStyle () != wxTRANSPARENT)
    {
        SetBrush (m_brush);

        PsPrintf( wxT("newpath\n")
                  wxT("%d %d %d %d 0 360 ellipse\n")
                  wxT("fill\n"),
                LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
                LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );

        CalcBoundingBox( x - width, y - height );
        CalcBoundingBox( x + width, y + height );
    }

    if (m_pen.GetStyle () != wxTRANSPARENT)
    {
        SetPen (m_pen);

        PsPrintf( wxT("newpath\n")
                  wxT("%d %d %d %d 0 360 ellipse\n")
                  wxT("stroke\n"),
                LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
                LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );