metado.java

java itext java itext java itext

/*
 * $Id: MetaDo.java,v 1.4 2001/12/10 13:53:22 blowagie Exp $
 * $Name:  $
 *
 * Copyright 2001 by Paulo Soares.
 *
 * 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 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; if not, write to the Free Foundation, Inc., 59 Temple Place,
 * Suite 330, Boston, MA 02111-1307 USA.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 *
 * ir-arch Bruno Lowagie,
 * Adolf Baeyensstraat 121
 * 9040 Sint-Amandsberg
 * BELGIUM
 * tel. [phone]
 * [e-mail]
 *
 */

package com.lowagie.text.pdf.wmf;
import java.io.*;
import com.lowagie.text.pdf.*;
import com.lowagie.text.*;
import java.awt.Point;
import java.awt.Color;

public class MetaDo {
    
    public static final int META_SETBKCOLOR            = 0x0201;
    public static final int META_SETBKMODE             = 0x0102;
    public static final int META_SETMAPMODE            = 0x0103;
    public static final int META_SETROP2               = 0x0104;
    public static final int META_SETRELABS             = 0x0105;
    public static final int META_SETPOLYFILLMODE       = 0x0106;
    public static final int META_SETSTRETCHBLTMODE     = 0x0107;
    public static final int META_SETTEXTCHAREXTRA      = 0x0108;
    public static final int META_SETTEXTCOLOR          = 0x0209;
    public static final int META_SETTEXTJUSTIFICATION  = 0x020A;
    public static final int META_SETWINDOWORG          = 0x020B;
    public static final int META_SETWINDOWEXT          = 0x020C;
    public static final int META_SETVIEWPORTORG        = 0x020D;
    public static final int META_SETVIEWPORTEXT        = 0x020E;
    public static final int META_OFFSETWINDOWORG       = 0x020F;
    public static final int META_SCALEWINDOWEXT        = 0x0410;
    public static final int META_OFFSETVIEWPORTORG     = 0x0211;
    public static final int META_SCALEVIEWPORTEXT      = 0x0412;
    public static final int META_LINETO                = 0x0213;
    public static final int META_MOVETO                = 0x0214;
    public static final int META_EXCLUDECLIPRECT       = 0x0415;
    public static final int META_INTERSECTCLIPRECT     = 0x0416;
    public static final int META_ARC                   = 0x0817;
    public static final int META_ELLIPSE               = 0x0418;
    public static final int META_FLOODFILL             = 0x0419;
    public static final int META_PIE                   = 0x081A;
    public static final int META_RECTANGLE             = 0x041B;
    public static final int META_ROUNDRECT             = 0x061C;
    public static final int META_PATBLT                = 0x061D;
    public static final int META_SAVEDC                = 0x001E;
    public static final int META_SETPIXEL              = 0x041F;
    public static final int META_OFFSETCLIPRGN         = 0x0220;
    public static final int META_TEXTOUT               = 0x0521;
    public static final int META_BITBLT                = 0x0922;
    public static final int META_STRETCHBLT            = 0x0B23;
    public static final int META_POLYGON               = 0x0324;
    public static final int META_POLYLINE              = 0x0325;
    public static final int META_ESCAPE                = 0x0626;
    public static final int META_RESTOREDC             = 0x0127;
    public static final int META_FILLREGION            = 0x0228;
    public static final int META_FRAMEREGION           = 0x0429;
    public static final int META_INVERTREGION          = 0x012A;
    public static final int META_PAINTREGION           = 0x012B;
    public static final int META_SELECTCLIPREGION      = 0x012C;
    public static final int META_SELECTOBJECT          = 0x012D;
    public static final int META_SETTEXTALIGN          = 0x012E;
    public static final int META_CHORD                 = 0x0830;
    public static final int META_SETMAPPERFLAGS        = 0x0231;
    public static final int META_EXTTEXTOUT            = 0x0a32;
    public static final int META_SETDIBTODEV           = 0x0d33;
    public static final int META_SELECTPALETTE         = 0x0234;
    public static final int META_REALIZEPALETTE        = 0x0035;
    public static final int META_ANIMATEPALETTE        = 0x0436;
    public static final int META_SETPALENTRIES         = 0x0037;
    public static final int META_POLYPOLYGON           = 0x0538;
    public static final int META_RESIZEPALETTE         = 0x0139;
    public static final int META_DIBBITBLT             = 0x0940;
    public static final int META_DIBSTRETCHBLT         = 0x0b41;
    public static final int META_DIBCREATEPATTERNBRUSH = 0x0142;
    public static final int META_STRETCHDIB            = 0x0f43;
    public static final int META_EXTFLOODFILL          = 0x0548;
    public static final int META_DELETEOBJECT          = 0x01f0;
    public static final int META_CREATEPALETTE         = 0x00f7;
    public static final int META_CREATEPATTERNBRUSH    = 0x01F9;
    public static final int META_CREATEPENINDIRECT     = 0x02FA;
    public static final int META_CREATEFONTINDIRECT    = 0x02FB;
    public static final int META_CREATEBRUSHINDIRECT   = 0x02FC;
    public static final int META_CREATEREGION          = 0x06FF;

    public PdfContentByte cb;
    public InputMeta in;
    int left;
    int top;
    int right;
    int bottom;
    int inch;
    MetaState state = new MetaState();

    public MetaDo(InputStream in, PdfContentByte cb) {
        this.cb = cb;
        this.in = new InputMeta(in);
    }
    
    public void readAll() throws IOException, DocumentException{
        if (in.readInt() != 0x9AC6CDD7) {
            throw new DocumentException("Not a placeable windows metafile");
        }
        in.readWord();
        left = in.readShort();
        top = in.readShort();
        right = in.readShort();
        bottom = in.readShort();
        inch = in.readWord();
        state.setScalingX((float)(right - left) / (float)inch * 72f);
        state.setScalingY((float)(bottom - top) / (float)inch * 72f);
        in.readInt();
        in.readWord();
        in.skip(18);
        
        int tsize;
        int function;
        cb.setLineCap(1);
        cb.setLineJoin(1);
        for (;;) {
            int lenMarker = in.getLength();
            tsize = in.readInt();
            if (tsize < 3)
                break;
            function = in.readWord();
            switch (function) {
                case 0:
                    break;
                case META_CREATEPALETTE:
                case META_CREATEREGION:
                case META_DIBCREATEPATTERNBRUSH:
                    state.addMetaObject(new MetaObject());
                    break;
                case META_CREATEPENINDIRECT:
                {
                    MetaPen pen = new MetaPen();
                    pen.init(in);
                    state.addMetaObject(pen);
                    break;
                }
                case META_CREATEBRUSHINDIRECT:
                {
                    MetaBrush brush = new MetaBrush();
                    brush.init(in);
                    state.addMetaObject(brush);
                    break;
                }
                case META_CREATEFONTINDIRECT:
                {
                    MetaFont font = new MetaFont();
                    font.init(in);
                    state.addMetaObject(font);
                    break;
                }
                case META_SELECTOBJECT:
                {
                    int idx = in.readWord();
                    state.selectMetaObject(idx, cb);
                    break;
                }
                case META_DELETEOBJECT:
                {
                    int idx = in.readWord();
                    state.deleteMetaObject(idx);
                    break;
                }
                case META_SAVEDC:
                    state.saveState(cb);
                    break;
                case META_RESTOREDC:
                {
                    int idx = in.readShort();
                    state.restoreState(idx, cb);
                    break;
                }
                case META_SETWINDOWORG:
                    state.setOffsetWy(in.readShort());
                    state.setOffsetWx(in.readShort());
                    break;
                case META_SETWINDOWEXT:
                    state.setExtentWy(in.readShort());
                    state.setExtentWx(in.readShort());
                    break;
                case META_MOVETO:
                {
                    int y = in.readShort();
                    Point p = new Point(in.readShort(), y);
                    state.setCurrentPoint(p);
                    break;
                }
                case META_LINETO:
                {
                    int y = in.readShort();
                    int x = in.readShort();
                    Point p = state.getCurrentPoint();
                    cb.moveTo(state.transformX(p.x), state.transformY(p.y));
                    cb.lineTo(state.transformX(x), state.transformY(y));
                    cb.stroke();
                    state.setCurrentPoint(new Point(x, y));
                    break;
                }
                case META_POLYLINE:
                {
                    state.setLineJoinPolygon(cb);
                    int len = in.readWord();
                    int x = in.readShort();
                    int y = in.readShort();
                    cb.moveTo(state.transformX(x), state.transformY(y));
                    for (int k = 1; k < len; ++k) {
                        x = in.readShort();
                        y = in.readShort();
                        cb.lineTo(state.transformX(x), state.transformY(y));
                    }
                    cb.stroke();
                    break;
                }
                case META_POLYGON:
                {
                    if (isNullStrokeFill(false))
                        break;
                    int len = in.readWord();
                    int sx = in.readShort();
                    int sy = in.readShort();
                    cb.moveTo(state.transformX(sx), state.transformY(sy));
                    for (int k = 1; k < len; ++k) {
                        int x = in.readShort();
                        int y = in.readShort();