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/*
* $Id: MetaDo.java 4065 2009-09-16 23:09:11Z psoares33 $
* $Name$
*
* Copyright 2001, 2002 Paulo Soares
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or 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.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* https://github.com/LibrePDF/OpenPDF
*/
package com.lowagie.text.pdf.codec.wmf;
import java.awt.Color;
import java.awt.Point;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.List;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Image;
import com.lowagie.text.error_messages.MessageLocalization;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfContentByte;
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(MessageLocalization.getComposedMessage("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);
state.setOffsetWx(left);
state.setOffsetWy(top);
state.setExtentWx(right - left);
state.setExtentWy(bottom - top);
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();
cb.lineTo(state.transformX(x), state.transformY(y));
}
cb.lineTo(state.transformX(sx), state.transformY(sy));
strokeAndFill();
break;
}
case META_POLYPOLYGON:
{
if (isNullStrokeFill(false))
break;
int numPoly = in.readWord();
int[] lens = new int[numPoly];
for (int k = 0; k < lens.length; ++k)
lens[k] = in.readWord();
for (int len : lens) {
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();
cb.lineTo(state.transformX(x), state.transformY(y));
}
cb.lineTo(state.transformX(sx), state.transformY(sy));
}
strokeAndFill();
break;
}
case META_ELLIPSE:
{
if (isNullStrokeFill(state.getLineNeutral()))
break;
int b = in.readShort();
int r = in.readShort();
int t = in.readShort();
int l = in.readShort();
cb.arc(state.transformX(l), state.transformY(b), state.transformX(r), state.transformY(t), 0, 360);
strokeAndFill();
break;
}
case META_ARC:
{
if (isNullStrokeFill(state.getLineNeutral()))
break;
float yend = state.transformY(in.readShort());
float xend = state.transformX(in.readShort());
float ystart = state.transformY(in.readShort());
float xstart = state.transformX(in.readShort());
float b = state.transformY(in.readShort());
float r = state.transformX(in.readShort());
float t = state.transformY(in.readShort());
float l = state.transformX(in.readShort());
float cx = (r + l) / 2;
float cy = (t + b) / 2;
float arc1 = getArc(cx, cy, xstart, ystart);
float arc2 = getArc(cx, cy, xend, yend);
arc2 -= arc1;
if (arc2 <= 0)
arc2 += 360;
cb.arc(l, b, r, t, arc1, arc2);
cb.stroke();
break;
}
case META_PIE:
{
if (isNullStrokeFill(state.getLineNeutral()))
break;
float yend = state.transformY(in.readShort());
float xend = state.transformX(in.readShort());
float ystart = state.transformY(in.readShort());
float xstart = state.transformX(in.readShort());
float b = state.transformY(in.readShort());
float r = state.transformX(in.readShort());
float t = state.transformY(in.readShort());
float l = state.transformX(in.readShort());
float cx = (r + l) / 2;
float cy = (t + b) / 2;
float arc1 = getArc(cx, cy, xstart, ystart);
float arc2 = getArc(cx, cy, xend, yend);
arc2 -= arc1;
if (arc2 <= 0)
arc2 += 360;
List ar = PdfContentByte.bezierArc(l, b, r, t, arc1, arc2);
if (ar.isEmpty())
break;
float[] pt = ar.get(0);
cb.moveTo(cx, cy);
cb.lineTo(pt[0], pt[1]);
for (float[] anAr : ar) {
pt = anAr;
cb.curveTo(pt[2], pt[3], pt[4], pt[5], pt[6], pt[7]);
}
cb.lineTo(cx, cy);
strokeAndFill();
break;
}
case META_CHORD:
{
if (isNullStrokeFill(state.getLineNeutral()))
break;
float yend = state.transformY(in.readShort());
float xend = state.transformX(in.readShort());
float ystart = state.transformY(in.readShort());
float xstart = state.transformX(in.readShort());
float b = state.transformY(in.readShort());
float r = state.transformX(in.readShort());
float t = state.transformY(in.readShort());
float l = state.transformX(in.readShort());
float cx = (r + l) / 2;
float cy = (t + b) / 2;
float arc1 = getArc(cx, cy, xstart, ystart);
float arc2 = getArc(cx, cy, xend, yend);
arc2 -= arc1;
if (arc2 <= 0)
arc2 += 360;
List ar = PdfContentByte.bezierArc(l, b, r, t, arc1, arc2);
if (ar.isEmpty())
break;
float[] pt = ar.get(0);
cx = pt[0];
cy = pt[1];
cb.moveTo(cx, cy);
for (float[] floats : ar) {
pt = floats;
cb.curveTo(pt[2], pt[3], pt[4], pt[5], pt[6], pt[7]);
}
cb.lineTo(cx, cy);
strokeAndFill();
break;
}
case META_RECTANGLE:
{
if (isNullStrokeFill(true))
break;
float b = state.transformY(in.readShort());
float r = state.transformX(in.readShort());
float t = state.transformY(in.readShort());
float l = state.transformX(in.readShort());
cb.rectangle(l, b, r - l, t - b);
strokeAndFill();
break;
}
case META_ROUNDRECT:
{
if (isNullStrokeFill(true))
break;
float h = state.transformY(0) - state.transformY(in.readShort());
float w = state.transformX(in.readShort()) - state.transformX(0);
float b = state.transformY(in.readShort());
float r = state.transformX(in.readShort());
float t = state.transformY(in.readShort());
float l = state.transformX(in.readShort());
cb.roundRectangle(l, b, r - l, t - b, (h + w) / 4);
strokeAndFill();
break;
}
case META_INTERSECTCLIPRECT:
{
float b = state.transformY(in.readShort());
float r = state.transformX(in.readShort());
float t = state.transformY(in.readShort());
float l = state.transformX(in.readShort());
cb.rectangle(l, b, r - l, t - b);
cb.eoClip();
cb.newPath();
break;
}
case META_EXTTEXTOUT:
{
int y = in.readShort();
int x = in.readShort();
int count = in.readWord();
int flag = in.readWord();
int x1 = 0;
int y1 = 0;
int x2 = 0;
int y2 = 0;
if ((flag & (MetaFont.ETO_CLIPPED | MetaFont.ETO_OPAQUE)) != 0) {
x1 = in.readShort();
y1 = in.readShort();
x2 = in.readShort();
y2 = in.readShort();
}
byte[] text = new byte[count];
int k;
for (k = 0; k < count; ++k) {
byte c = (byte)in.readByte();
if (c == 0)
break;
text[k] = c;
}
String s;
try {
s = new String(text, 0, k, "Cp1252");
}
catch (UnsupportedEncodingException e) {
s = new String(text, 0, k);
}
outputText(x, y, flag, x1, y1, x2, y2, s);
break;
}
case META_TEXTOUT:
{
int count = in.readWord();
byte[] text = new byte[count];
int k;
for (k = 0; k < count; ++k) {
byte c = (byte)in.readByte();
if (c == 0)
break;
text[k] = c;
}
String s;
try {
s = new String(text, 0, k, "Cp1252");
}
catch (UnsupportedEncodingException e) {
s = new String(text, 0, k);
}
count = (count + 1) & 0xfffe;
in.skip(count - k);
int y = in.readShort();
int x = in.readShort();
outputText(x, y, 0, 0, 0, 0, 0, s);
break;
}
case META_SETBKCOLOR:
state.setCurrentBackgroundColor(in.readColor());
break;
case META_SETTEXTCOLOR:
state.setCurrentTextColor(in.readColor());
break;
case META_SETTEXTALIGN:
state.setTextAlign(in.readWord());
break;
case META_SETBKMODE:
state.setBackgroundMode(in.readWord());
break;
case META_SETPOLYFILLMODE:
state.setPolyFillMode(in.readWord());
break;
case META_SETPIXEL:
{
Color color = in.readColor();
int y = in.readShort();
int x = in.readShort();
cb.saveState();
cb.setColorFill(color);
cb.rectangle(state.transformX(x), state.transformY(y), .2f, .2f);
cb.fill();
cb.restoreState();
break;
}
case META_DIBSTRETCHBLT:
case META_STRETCHDIB:
break;
}
in.skip((tsize * 2) - (in.getLength() - lenMarker));
}
state.cleanup(cb);
}
public void outputText(int x, int y, int flag, int x1, int y1, int x2, int y2, String text) {
MetaFont font = state.getCurrentFont();
float refX = state.transformX(x);
float refY = state.transformY(y);
float angle = state.transformAngle(font.getAngle());
float sin = (float)Math.sin(angle);
float cos = (float)Math.cos(angle);
float fontSize = font.getFontSize(state);
BaseFont bf = font.getFont();
int align = state.getTextAlign();
float textWidth = bf.getWidthPoint(text, fontSize);
float tx = 0;
float ty = 0;
float descender = bf.getFontDescriptor(BaseFont.DESCENT, fontSize);
float ury = bf.getFontDescriptor(BaseFont.BBOXURY, fontSize);
cb.saveState();
cb.concatCTM(cos, sin, -sin, cos, refX, refY);
if ((align & MetaState.TA_CENTER) == MetaState.TA_CENTER)
tx = -textWidth / 2;
else if ((align & MetaState.TA_RIGHT) == MetaState.TA_RIGHT)
tx = -textWidth;
if ((align & MetaState.TA_BASELINE) == MetaState.TA_BASELINE)
ty = 0;
else if ((align & MetaState.TA_BOTTOM) == MetaState.TA_BOTTOM)
ty = -descender;
else
ty = -ury;
Color textColor;
if (state.getBackgroundMode() == MetaState.OPAQUE) {
textColor = state.getCurrentBackgroundColor();
cb.setColorFill(textColor);
cb.rectangle(tx, ty + descender, textWidth, ury - descender);
cb.fill();
}
textColor = state.getCurrentTextColor();
cb.setColorFill(textColor);
cb.beginText();
cb.setFontAndSize(bf, fontSize);
cb.setTextMatrix(tx, ty);
cb.showText(text);
cb.endText();
if (font.isUnderline()) {
cb.rectangle(tx, ty - fontSize / 4, textWidth, fontSize / 15);
cb.fill();
}
if (font.isStrikeout()) {
cb.rectangle(tx, ty + fontSize / 3, textWidth, fontSize / 15);
cb.fill();
}
cb.restoreState();
}
public boolean isNullStrokeFill(boolean isRectangle) {
MetaPen pen = state.getCurrentPen();
MetaBrush brush = state.getCurrentBrush();
boolean noPen = (pen.getStyle() == MetaPen.PS_NULL);
int style = brush.getStyle();
boolean isBrush = (style == MetaBrush.BS_SOLID || (style == MetaBrush.BS_HATCHED && state.getBackgroundMode() == MetaState.OPAQUE));
boolean result = noPen && !isBrush;
if (!noPen) {
if (isRectangle)
state.setLineJoinRectangle(cb);
else
state.setLineJoinPolygon(cb);
}
return result;
}
public void strokeAndFill(){
MetaPen pen = state.getCurrentPen();
MetaBrush brush = state.getCurrentBrush();
int penStyle = pen.getStyle();
int brushStyle = brush.getStyle();
if (penStyle == MetaPen.PS_NULL) {
cb.closePath();
if (state.getPolyFillMode() == MetaState.ALTERNATE) {
cb.eoFill();
}
else {
cb.fill();
}
}
else {
boolean isBrush = (brushStyle == MetaBrush.BS_SOLID || (brushStyle == MetaBrush.BS_HATCHED && state.getBackgroundMode() == MetaState.OPAQUE));
if (isBrush) {
if (state.getPolyFillMode() == MetaState.ALTERNATE)
cb.closePathEoFillStroke();
else
cb.closePathFillStroke();
}
else {
cb.closePathStroke();
}
}
}
static float getArc(float xCenter, float yCenter, float xDot, float yDot) {
double s = Math.atan2(yDot - yCenter, xDot - xCenter);
if (s < 0)
s += Math.PI * 2;
return (float)(s / Math.PI * 180);
}
public static byte[] wrapBMP(Image image) throws IOException {
if (image.getOriginalType() != Image.ORIGINAL_BMP)
throw new IOException(MessageLocalization.getComposedMessage("only.bmp.can.be.wrapped.in.wmf"));
InputStream imgIn;
byte[] data = null;
if (image.getOriginalData() == null) {
imgIn = image.getUrl().openStream();
ByteArrayOutputStream out = new ByteArrayOutputStream();
int b = 0;
while ((b = imgIn.read()) != -1)
out.write(b);
imgIn.close();
data = out.toByteArray();
}
else
data = image.getOriginalData();
int sizeBmpWords = (data.length - 14 + 1) >>> 1;
ByteArrayOutputStream os = new ByteArrayOutputStream();
// write metafile header
writeWord(os, 1);
writeWord(os, 9);
writeWord(os, 0x0300);
writeDWord(os, 9 + 4 + 5 + 5 + (13 + sizeBmpWords) + 3); // total metafile size
writeWord(os, 1);
writeDWord(os, 14 + sizeBmpWords); // max record size
writeWord(os, 0);
// write records
writeDWord(os, 4);
writeWord(os, META_SETMAPMODE);
writeWord(os, 8);
writeDWord(os, 5);
writeWord(os, META_SETWINDOWORG);
writeWord(os, 0);
writeWord(os, 0);
writeDWord(os, 5);
writeWord(os, META_SETWINDOWEXT);
writeWord(os, (int)image.getHeight());
writeWord(os, (int)image.getWidth());
writeDWord(os, 13 + sizeBmpWords);
writeWord(os, META_DIBSTRETCHBLT);
writeDWord(os, 0x00cc0020);
writeWord(os, (int)image.getHeight());
writeWord(os, (int)image.getWidth());
writeWord(os, 0);
writeWord(os, 0);
writeWord(os, (int)image.getHeight());
writeWord(os, (int)image.getWidth());
writeWord(os, 0);
writeWord(os, 0);
os.write(data, 14, data.length - 14);
if ((data.length & 1) == 1)
os.write(0);
// writeDWord(os, 14 + sizeBmpWords);
// writeWord(os, META_STRETCHDIB);
// writeDWord(os, 0x00cc0020);
// writeWord(os, 0);
// writeWord(os, (int)image.height());
// writeWord(os, (int)image.width());
// writeWord(os, 0);
// writeWord(os, 0);
// writeWord(os, (int)image.height());
// writeWord(os, (int)image.width());
// writeWord(os, 0);
// writeWord(os, 0);
// os.write(data, 14, data.length - 14);
// if ((data.length & 1) == 1)
// os.write(0);
writeDWord(os, 3);
writeWord(os, 0);
os.close();
return os.toByteArray();
}
public static void writeWord(OutputStream os, int v) throws IOException {
os.write(v & 0xff);
os.write((v >>> 8) & 0xff);
}
public static void writeDWord(OutputStream os, int v) throws IOException {
writeWord(os, v & 0xffff);
writeWord(os, (v >>> 16) & 0xffff);
}
}
