postscript.cpp

来自「ncbi源码」· C++ 代码 · 共 264 行

/*
 * ===========================================================================
 * PRODUCTION $Log: postscript.cpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 21:03:51  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.8
 * PRODUCTION
 * ===========================================================================
 */

/*  $Id: postscript.cpp,v 1000.1 2004/06/01 21:03:51 gouriano Exp $
 * ===========================================================================
 *
 *                            PUBLIC DOMAIN NOTICE
 *               National Center for Biotechnology Information
 *
 *  This software / database is a "United States Government Work" under the
 *  terms of the United States Copyright Act.  It was written as part of
 *  the author's official duties as a United States Government employee and
 *  thus cannot be copyrighted.  This software / database is freely available
 *  to the public for use. The National Library of Medicine and the U.S.
 *  Government have not placed any restriction on its use or reproduction.
 *
 *  Although all reasonable efforts have been taken to ensure the accuracy
 *  and reliability of the software and data, the NLM and the U.S.
 *  Government do not and cannot warrant the performance or results that
 *  may be obtained by using this software or data. The NLM and the U.S.
 *  Government disclaim all warranties, express or implied, including
 *  warranties of performance, merchantability or fitness for any particular
 *  purpose.
 *
 *  Please cite the author in any work or product based on this material.
 *
 * ===========================================================================
 *
 * Authors:  Peter Meric
 *
 * File Description:
 *   CPostscript - Postscript output
 *
 */


#include <ncbi_pch.hpp>
#include <gui/print/postscript.hpp>
#include <gui/utils/rgba_color.hpp>
#include <gui/print/vector_object.hpp>
#include "page_buffers.hpp"
#include "postscript_defs.hpp"


BEGIN_NCBI_SCOPE



CPostscript::CPostscript()
    : m_PageCount(0),
      m_PageBuffers(new CPageBuffers())
{
}


CPostscript::~CPostscript()
{
}


void CPostscript::SetOptions(const CPrintOptions& options)
{
    m_Options = options;
}


void CPostscript::PrintBuffer(const CPBuffer* buf)
{
    m_PageBuffers->Add(buf);
}


void CPostscript::BeginDocument()
{
    PrintStrings(*m_Strm, s_PS_topA);
    *m_Strm << "%%Title: " << m_Options.GetTitle() << endl;
    PrintStrings(*m_Strm, s_PS_topB);

    // print the prolog

    PrintStrings(*m_Strm, s_PS_prologA);

    *m_Strm << "% color command - r g b C" << endl;
    if (m_Options.GetGrayscale()) {
        *m_Strm << "/C { C_GREY } bind def" << endl;
    } else {
        *m_Strm << "/C { C_RGB } bind def" << endl;
    }

    PrintStrings(*m_Strm, s_PS_colors);

    PrintStrings(*m_Strm, s_PS_prologB);
}


void CPostscript::EndDocument()
{
    *m_Strm << "%%Pages: " << m_PageCount << endl;

    PrintStrings(*m_Strm, s_PS_bottom);
}


void CPostscript::ShowPage()
{
    /*
       if (m_PageBuffers->Empty()) {
       return;
       }
    */

    BeginPage();

    ITERATE(CPageBuffers,  it, *m_PageBuffers) {
        CVectorPrinter::PrintBuffer(*it);
    }

    EndPage();

    m_PageBuffers->Clear();
}


void CPostscript::BeginPage()
{
    *m_Strm << "%Page: " << ++m_PageCount << endl;
    *m_Strm << "bop" << endl;

    // landscape mode
    CBBox <3> bbox = m_PageBuffers->GetBoundingBox();
    *m_Strm << "% bounding box: " << bbox << endl;
    const pair<float, float> xs = bbox.GetNthRange(0);
    *m_Strm << "/dwidth { " << xs.second - xs.first << " } def" << endl;
    const pair<float, float> ys = bbox.GetNthRange(1);
    *m_Strm << "/dheight { " << ys.second - ys.first << " } def" << endl;
    *m_Strm << "lscape" << endl;

    // print header
    string header(m_Options.GetHeader());
    if (header.length() > 0) {
        *m_Strm << "(" << header << ") pghead" << endl;
    }
}


void CPostscript::EndPage()
{
    if (m_PageCount == 0) {
        return;
    }

    // print footer
    string footer(m_Options.GetFooter());
    if (footer.length() > 0) {
        *m_Strm << "(" << footer << ") pgfoot" << endl;
    }

    *m_Strm << "eop" << endl;
}


void CPostscript::PrintObject(const CObject* obj, CPrintState& state)
{
    CRgbaColor& curr_nonstipple = state.m_NonStipple;

    const CPVecText* txt = dynamic_cast < const CPVecText*>(obj);
    if (txt) {
        // set the text color
        const CRgbaColor& color = txt->GetColor();
        if ( !(color == curr_nonstipple) ) {
            color.PrintTo(*m_Strm, false);
            *m_Strm << " C" << endl;
            curr_nonstipple = color;
        }

        // output the text, font and font size
        *m_Strm << '(' << txt->GetText() << ") /" << txt->GetFont() << " 8 ";

        // output the text position and the showtext command
        const float* p = txt->GetPosition();
        *m_Strm << p[0] << ' ' << p[1] << " showtext" << endl;
        return;
    }

    const CPVecPoint* point = dynamic_cast < const CPVecPoint*>(obj);
    if (point) {
        const CRgbaColor& color = point->GetColor();
        if ( !(color == curr_nonstipple) ) {
            color.PrintTo(*m_Strm, false);
            *m_Strm << " C" << endl;
            curr_nonstipple = color;
        }
        *m_Strm << point << " P" << endl;
        return;
    }

    const CPVecPolygon* poly = dynamic_cast < const CPVecPolygon*>(obj);
    if ( !poly ) {
        return;
    }
    if (poly->IsFlatColored()) {
        const CRgbaColor& color = (*poly->begin())->GetColor();
        if ( !(color == curr_nonstipple) ) {
            color.PrintTo(*m_Strm, false);
            *m_Strm << " C" << endl;
            curr_nonstipple = color;
        }

        ITERATE(CPVecPolygon, it, *poly) {
            const CPVecPoint* p = *it;
            p->PrintTo(*m_Strm, CPVecPoint::eCoordXY); // only print X, Y coordinates
            *m_Strm << " ";
        }

        *m_Strm << " T" << endl;
    }
}



END_NCBI_SCOPE


/*
 * ===========================================================================
 * $Log: postscript.cpp,v $
 * Revision 1000.1  2004/06/01 21:03:51  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.8
 *
 * Revision 1.8  2004/05/21 22:27:50  gorelenk
 * Added PCH ncbi_pch.hpp
 *
 * Revision 1.7  2003/08/15 17:02:16  meric
 * Updates include paths for print-related files from gui/utils to gui/print
 *
 * Revision 1.6  2003/06/25 18:02:51  meric
 * Source rearrangement: move "private" headers into the src/ tree
 *
 * Revision 1.5  2003/06/24 21:48:51  meric
 * Modifications to allow for includes to be moved from postscript.hpp
 *
 * Revision 1.4  2003/06/18 17:25:39  meric
 * Final phase of print reorg: remove dependence on gui/opengl and OpenGL
 *
 * Revision 1.3  2003/06/18 16:40:33  meric
 * First phase of print reorg: remove dependence on gui/opengl and OpenGL
 * except for class COpenGLPrintBuffer
 *
 * Revision 1.2  2003/06/16 12:44:52  dicuccio
 * Clean-up after initial commit
 *
 * Revision 1.1  2003 / 06 / 13 18:13:56  meric
 * Initial version
 *
 *
 * ===========================================================================
 */