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Thailand - Into the 2000's
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Thailand: Into the 2000's.iso
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Acrobat
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Javascripts
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Annots.js
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Text File
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2001-08-01
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23KB
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863 lines
if(typeof Collab != "undefined")
{
var strsToExport =[
"IDS_SUM_TITLE1",
"IDS_SUM_TITLE2",
"IDS_UNNAMED",
"IDS_SUM_DATE1",
"IDS_SUM_DATE2",
"IDS_SUM_AUTHOR1",
"IDS_SUM_AUTHOR2",
"IDS_SUM_SUBJ1",
"IDS_SUM_SUBJ2",
"IDS_SUM_LABEL1",
"IDS_SUM_LABEL2",
"IDS_SUM_PAGE1",
"IDS_SUM_PAGE2",
"IDS_SUM_TYPE1",
"IDS_SUM_TYPE2",
"IDS_SUM_SEQ1",
"IDS_SUM_SEQ2",
"IDS_SUM_NO_ANNOTS1",
"IDS_SUM_NO_ANNOTS2",
"IDS_STORE_WEB_DISCUSSIONS",
"IDS_STORE_DAVFDF",
"IDS_STORE_FSFDF",
"IDS_STORE_DATABASE",
"IDS_STORE_NONE",
"IDS_PROGRESS_SUMMARIZE",
"IDS_PROGRESS_SORTING",
"IDS_PROGRESS_FETCHING",
"IDS_PROGRESS_FETCHING_BIG",
"IDS_PROGRESS_ADDING",
"IDS_PROGRESS_DELETING",
"IDS_PROGRESS_CHANGING",
"IDS_ANNOTS_JS_BUILTIN",
"IDS_DATE_INDETERMINATE"
];
for(var n = 0; n < strsToExport.length; n++)
{
var strID = strsToExport[n];
eval(strID + " = " + app.getString("Annots", strID).toSource());
}
console.println(IDS_ANNOTS_JS_BUILTIN);
/* for debugging */
function debugExcept(e)
{
if((typeof app._DEBUG != "undefined") && app._DEBUG)
console.println(e)
}
/* Sort methods */
ANSB_None = 0;
ANSB_Page = 1;
ANSB_Seq = 2;
ANSB_Author = 3;
ANSB_ModDate = 4;
ANSB_Type = 5;
ANFB_ShouldPrint = 0;
ANFB_ShouldView = 1;
ANFB_ShouldEdit = 2;
ANFB_ShouldAppearInPanel = 3;
ANFB_ShouldSummarize = 4;
ANFB_ShouldExport = 5;
ANFB_ShouldNone = 6;
/* Field to summary functions by property name */
ANsums =
[
/* None */ function(a){return "*None*";},
/* Page */ function(a){return IDS_SUM_PAGE1+a.doc.getPageLabel(a.page)+IDS_SUM_PAGE2;},
/* Sequence */ function(a){return IDS_SUM_SEQ1+a.seqNum+IDS_SUM_SEQ2;},
/* Author */ function(a){return IDS_SUM_AUTHOR1+a.author+IDS_SUM_AUTHOR2;},
/* ModDate */ function(a){
var d = a.modDate;
return IDS_SUM_DATE1+ (d ? util.printd(2, a.modDate) : IDS_DATE_INDETERMINATE )+IDS_SUM_DATE2;
},
/* Type */ function(a){return IDS_SUM_TYPE1+a.uiType+IDS_SUM_TYPE2;},
];
/* Order of summary fields */
ANsumorder = [ ANSB_Page, ANSB_Seq, ANSB_Author, ANSB_ModDate, ANSB_Type ];
/* binary insertion into sorted list */
function binsert(a, m)
{
var nStart = 0, nEnd = a.length - 1;
while(nStart < nEnd)
{
var nMid = Math.floor((nStart + nEnd) / 2);
if(m.toString() < a[nMid].toString())
nEnd = nMid - 1;
else
nStart = nMid + 1;
}
if((nStart < a.length) && (m.toString() >= a[nStart].toString()))
a.splice(nStart + 1, 0, m);
else
a.splice(nStart, 0, m);
}
/* perform a worst case n log ( n ) sort with status */
function isort(a, status)
{
var i;
var aNew = new Array();
if(status)
{
app.thermometer.begin();
app.thermometer.duration = a.length;
app.thermometer.text = status;
}
for(i = 0; i < a.length; i++)
{
if(status)
app.thermometer.value = i;
binsert(aNew, a[i]);
}
if(status)
app.thermometer.end();
return aNew;
}
function ANsummarize(doc, title, p, r, dest, fs)
{ /* Summarize annotations sorted primarily by property p */
app.thermometer.begin();
app.thermometer.text = IDS_PROGRESS_SUMMARIZE;
if(!ANsums[p])
p = ANSB_Page;
if(!title)
title = IDS_UNNAMED;
/* make sure we have all annots */
this.syncAnnotScan();
/* Get all summarizable annots on all pages sorted in the given manner */
var a = doc.getAnnots(-1, p, r, ANFB_ShouldSummarize);
var t, s;
var r = new Report();
r.style = "NoteTitle";
r.size = 3;
t = IDS_SUM_TITLE1 + title + IDS_SUM_TITLE2;
r.writeText(t);
r.divide(3.5);
var i, j, contents;
var oldHeading;
if(a && a.length > 0)
{
app.thermometer.duration = a.length;
for(i = 0; i < a.length; i++)
{
app.thermometer.value = i;
// maybe do the heading
r.style = "NoteTitle";
r.size = 2;
var heading = (ANsums[p])(a[i]);
if(heading != oldHeading)
{
if(typeof oldHeading != "undefined")
r.writeText(" ");
r.writeText(heading);
oldHeading = heading;
r.divide();
}
for(j = 0; j < ANsumorder.length; j++)
if(ANsumorder[j] != p)
{
r.size = 1;
r.writeText((ANsums[ANsumorder[j]])(a[i]));
}
var contents = a[i].contents;
if(contents)
{
r.style = "DefaultNoteText";
r.size = 1;
r.indent();
r.writeText(contents);
r.writeText(" ");
r.outdent();
}
else
r.writeText(" ");
}
}
else
r.writeText(IDS_SUM_NO_ANNOTS1 + title + IDS_SUM_NO_ANNOTS2);
if (typeof dest != "undefined")
r.save(dest, fs);
else
r.open(t);
app.thermometer.end();
return a ? a.length : 0;
}
/* flags used by collaboration
*/
CBFNiceTableName = 1;
CBFNiceDBName = 2;
CBFDBPerDoc = 4;
function CBgetTableDesc(doc, author)
{
var frag = Collab.URL2PathFragment(doc.URL);
var DBName;
var tableName;
if(doc.collabDBFlags & CBFDBPerDoc)
{
DBName = frag;
tableName = author;
}
else
{
DBName = "";
tableName = frag;
}
if(doc.collabDBFlags & CBFNiceTableName)
tableName = Collab.hashString(tableName);
if(doc.collabDBFlags & CBFNiceDBName)
DBName = Collab.hashString(DBName);
return {DBName: doc.collabDBRoot + DBName,
tableName: tableName,
URL: doc.URL,
user: author,
flags: doc.collabDBFlags};
}
function CBgetTableConnect(desc)
{
var e;
try
{
var conn = ADBC.newConnection(desc.DBName);
var stmt = conn.newStatement();
return {conn: conn,
stmt: stmt,
tableName: desc.tableName,
user: desc.user,
flags: desc.flags};
}
catch(e) { debugExcept(e); return false; }
}
function CBgetInfo(conn, name)
{
var e;
try
{
conn.stmt.execute("select CONTENTS from \"" + conn.tableName + "\" where AUTHOR like ?;",
"~" + name + "~");
conn.stmt.nextRow();
return conn.stmt.getColumn("CONTENTS").value;
}
catch(e) { debugExcept(e); return false; }
}
function CBsetInfo(conn, name, value)
{
var e;
/* add the field */
try { return conn.stmt.execute("insert into \"" + conn.tableName + "\" (AUTHOR, CONTENTS) values (?, ?);",
"~" + name + "~",
value); }
catch(e) { debugExcept(e); return false; }
}
function CBcreateTable(desc)
{
var e;
try
{
var conn = ADBC.newConnection(desc.DBName);
var stmt = conn ? conn.newStatement() : null;
/* come up with the SQL query to do it */
var sql1 = "create table \"" + desc.tableName + "\" (AUTHOR varchar(64), PAGE integer, NAME varchar(64), CONTENTS text, DATA image);";
var sql2 = "create table \"" + desc.tableName + "\" (AUTHOR varchar(64), PAGE integer, NAME varchar(64), CONTENTS clob, DATA blob);";
var conn = {conn: conn,
stmt: stmt,
tableName: desc.tableName,
user: desc.user,
flags: desc.flags};
// first try...
try
{
stmt.execute(sql1);
} catch(e) { debugExcept(e); }
// second try...
try
{
stmt.execute(sql2);
} catch(e) { debugExcept(e); }
// these will throw if the table wasn't created
CBsetInfo(conn, "URL", desc.URL);
CBsetInfo(conn, "creator", desc.user);
return conn;
}
/* we failed... */
catch(e) { debugExcept(e); return false; }
}
function CBconnect(desc, bDoNotCreate)
{
var conn = CBgetTableConnect(desc);
var e;
/* if we can't get the URL from it, it doesn't exist */
if(!CBgetInfo(conn, "URL"))
{
if (!bDoNotCreate)
conn = CBcreateTable(desc);
else
return false;
}
/* here it is! */
return conn;
}
/* mapping of annot types to data properties */
CBannotdata =
{
FileAttachment: "FSCosObj",
Sound: "SCosObj"
};
/* returns the data fork for an annot */
function CBannotData(annot)
{
var prop = CBannotdata[annot.type];
var stm = prop ? Collab.cosObj2Stream(annot[prop]) : null;
if(stm)
stm.type = ADBC.SQLT_LONGVARBINARY;
return stm;
}
/* sets the data fork of an annot */
function CBannotSetData(annot, data)
{
var prop = CBannotdata[annot.type];
if(prop)
annot[prop] = data;
}
/* recursive function that deletes a reply chain */
function CBDeleteReplyChain(disc)
{
var replies = Discussions.getDiscussions(disc);
if (replies && (replies.length == 1))
{
var currentReply = replies[0];
var looper = 1;
while (looper)
{
/*
** There better only be one reply
*/
var saveChild = Discussions.getDiscussions(currentReply);
// console.println("Delete reply");
currentReply.Delete();
if (saveChild && (saveChild.length == 1))
currentReply = saveChild[0];
else
looper = 0;
}
}
}
/* gets the reply chain, stuffs it in a stream */
/* and then puts it in the annot */
function CBGetReplyChain(dstAnnot, discussion)
{
var discList = Discussions.getDiscussions(discussion);
var cos = Collab.newWrStreamToCosObj();
var data = 0;
while (discList && (discList.length > 0))
{
data = 1;
cos.write(discList[0].Text);
// console.println("Write to cos stream " + discList[0].Text.length + " characters");
discList = Discussions.getDiscussions(discList[0]);
}
if (data == 1)
CBannotSetData(dstAnnot, cos.getCosObj());
}
/* get the stream and puts the data as replies */
function CBPutReplyChain(discussion, bookmark, srcAnnot)
{
var cosStream = CBannotData(srcAnnot);
if(cosStream)
{
var s = cosStream.read(Collab.wdBlockSize);
while (discussion && (s.length > 0))
{
discussion = Discussions.addDiscussion(discussion, "Data", s, bookmark);
s = null;
s = cosStream.read(Collab.wdBlockSize);
}
}
}
/* ADBC based annot enumerator constructor
*/
function ADBCAnnotEnumerator(parent, sorted)
{
/* store away parameters */
this.parent = parent;
this.sorted = sorted;
/* add enumeration method */
this.next = function()
{
var e;
try
{
if(!this.conn)
{
this.conn = CBconnect(this.parent.desc, true);
this.conn.stmt.execute("select CONTENTS from \"" + this.parent.desc.tableName + "\" where AUTHOR not like '~%~'" +
(this.sorted ? " order by PAGE, NAME;" : ";"));
}
this.conn.stmt.nextRow();
return eval(this.conn.stmt.getColumn("CONTENTS").value);
}
catch(e) { debugExcept(e); return false; }
}
}
/* ADBC based annot store constructor
*/
function ADBCAnnotStore(doc, user)
{
this.desc = CBgetTableDesc(doc, user);
this.enumerate = function(sorted)
{
return new ADBCAnnotEnumerator(this, sorted);
}
this.complete = function(toComplete)
{
var i;
var conn = CBconnect(this.desc,true);
if (conn)
{
for(i = 0; toComplete && i < toComplete.length; i++)
{
if(CBannotdata[toComplete[i].type])
{
var e;
try
{
conn.stmt.execute("select DATA from \"" + this.desc.tableName + "\" where PAGE = ? and NAME like ?;",
toComplete[i].page, toComplete[i].name);
conn.stmt.nextRow();
var cos = Collab.newWrStreamToCosObj();
conn.stmt.getColumn("DATA", ADBC.Binary | ADBC.Stream, cos);
CBannotSetData(toComplete[i], cos.getCosObj());
}
catch(e) { debugExcept(e);}
}
}
}
return true;
}
this.update = function(toDelete, toAdd, toUpdate)
{
var i;
var e;
var conn = CBconnect(this.desc);
for(i = 0; toDelete && i < toDelete.length; i++)
{
try
{
conn.stmt.execute("delete from \"" + this.desc.tableName + "\" where PAGE = ? and NAME like ?;",
toDelete[i].page, toDelete[i].name);
}
catch(e) { debugExcept(e);}
}
for(i = 0; toAdd && i < toAdd.length; i++)
{
try
{
conn.stmt.execute("insert into \"" + this.desc.tableName + "\" (AUTHOR, PAGE, NAME, CONTENTS, DATA) values (?, ?, ?, ?, ?);",
toAdd[i].author, toAdd[i].page, toAdd[i].name, toAdd[i].toSource(), CBannotData(toAdd[i]));
}
catch(e) { debugExcept(e);}
}
for(i = 0; toUpdate&& i < toUpdate.length; i++)
{
try
{
conn.stmt.execute("update \"" + this.desc.tableName + "\" set CONTENTS = ?, DATA = ? where PAGE = ? and NAME like ?;",
toUpdate[i].toSource(), CBannotData(toUpdate[i]), toUpdate[i].page, toUpdate[i].name);
}
catch(e) { debugExcept(e);}
}
return true;
}
}
/* Munge an URL such that Web Discussions won't put our data in the discussions pane
*/
function WDmungeURL(url)
{
return url + "/ACData";
}
/* Web discussions based annot enumerator constructor
*/
function WDAnnotEnumerator(parent, sorted)
{
// console.println("WDAnnotEnumerator(): Begin");
this.parent = parent;
this.sorted = sorted;
this.next = function()
{
// console.println("WDAnnotEnumerator.next(): Begin");
if(!this.discussions)
{
// console.println("WDAnnotEnumerator.next(): get discussions "+WDmungeURL(this.parent.doc.URL));
this.discussions = Discussions.getDiscussions(WDmungeURL(this.parent.doc.URL));
app.thermometer.begin();
app.thermometer.text = IDS_PROGRESS_FETCHING;
if(this.discussions) // always sort as our completion callback relies on a sorted list
{
this.discussions = isort(this.discussions, IDS_PROGRESS_SORTING);
app.thermometer.duration = this.discussions.length;
}
this.index = 0;
}
/* skip non-Acro discussions */
while(this.discussions && this.index < this.discussions.length && this.discussions[this.index] == "[Discussion]")
app.thermometer.value = this.index++;
if(!this.discussions || this.index >= this.discussions.length)
{
app.thermometer.end();
return false;
}
return eval(this.discussions[this.index++].Text);
}
}
/* Web discussion based annot store constructor
*/
function WDAnnotStore(doc, user)
{
// console.println("WDAnnotStore(): Begin");
this.doc = doc;
this.user = user;
this.enumerate = function(sorted)
{
// console.println("WDAnnotStore.enumerate(): Begin");
return new WDAnnotEnumerator(this, sorted);
}
this.complete = function(toComplete)
{
// console.show();
// console.println("WDAnnotStore.toComplete(): Begin");
var i,j;
// console.println("get discussions for "+WDmungeURL(this.doc.URL));
var discussions = Discussions.getDiscussions(WDmungeURL(this.doc.URL));
if (discussions && discussions.length)
{
// sort them to perform fast searches
// JS sort is a SLOW qsort... use our worst case N log ( N )
discussions = isort(discussions, IDS_PROGRESS_SORTING);
app.thermometer.begin();
app.thermometer.text = IDS_PROGRESS_FETCHING_BIG;
app.thermometer.duration = toComplete.length;
for(i = 0, j = 0; discussions && (i < toComplete.length) && (j < discussions.length); app.thermometer.value = ++i)
{
//console.println("disussion " + i);
// create a string that'll look like the corresponding discussion
var discString = Discussions.makeDiscussionString(toComplete[i].page, toComplete[i].name);
//console.println("Descriptive string \"" + discString + "\"");
// keep skipping annots while they are "less" than the current one
while(discString > discussions[j])
j++;
// if we found it
if(discString == discussions[j])
{
//console.println("found it - Annot to Complete " + i + " is in discussion slot " + j);
//console.println("subject "+discussions[j].Subject);
/*
** We found the discussion, now gather replys which will
** contain the "data" for the stream
*/
if (CBannotdata[toComplete[i].type])
CBGetReplyChain(toComplete[i], discussions[j]);
}
}
app.thermometer.end();
}
return true;
}
this.update = function(toDelete, toAdd, toUpdate)
{
// console.println("WDAnnotStore.update(): Begin");
// get the list of discussions
// console.println("WDAnnotStore.update(): get discussions "+WDmungeURL(this.doc.URL();
var discussions = Discussions.getDiscussions(WDmungeURL(this.doc.URL));
var i, j;
// if we got any...
if(discussions && discussions.length)
{
// console.println("WDAnnotStore.update(): got some " + discussions.length);
// sort them to perform fast searches
discussions = isort(discussions, IDS_PROGRESS_SORTING);
// if we've got any to update
if(toUpdate && toUpdate.length)
{
app.thermometer.begin();
app.thermometer.text = IDS_PROGRESS_CHANGING;
app.thermometer.duration = toUpdate.length;
// console.println("WDAnnotStore.update(): updating " + toUpdate.length);
for(i = 0, j = 0; i < toUpdate.length && j < discussions.length; app.thermometer.value = ++i)
{
// create a string that'll look like the corresponding discussion
var discString = Discussions.makeDiscussionString(toUpdate[i].page, toUpdate[i].name);
// keep skipping annots while they are "less" than the current one
while(discString > discussions[j])
j++;
// if we found it
if(discString == discussions[j])
{
// then update it!
CBDeleteReplyChain(discussions[j]);
discussions[j].Delete();
var bookmark = Discussions.makeBookmark(toUpdate[i].page, toUpdate[i].name);
discussions[j] = Discussions.addDiscussion(WDmungeURL(this.doc.URL), "Markup", toUpdate[i].toSource(), bookmark);
CBPutReplyChain(discussions[j], bookmark, toUpdate[i]);
j++;
}
}
app.thermometer.end();
}
// delete is just like update
if(toDelete && toDelete.length)
{
app.thermometer.begin();
app.thermometer.text = IDS_PROGRESS_DELETING;
app.thermometer.duration = toDelete.length;
// console.println("WDAnnotStore.update(): deleting " + toDelete.length);
for(i = 0, j = 0; i < toDelete.length && j < discussions.length; app.thermometer.value = ++i)
{
var discString = Discussions.makeDiscussionString(toDelete[i].page, toDelete[i].name);
while(discString > discussions[j])
j++;
if(discString == discussions[j])
{
CBDeleteReplyChain(discussions[j]);
discussions[j].Delete();
j++;
}
}
app.thermometer.end();
}
}
if(toAdd && toAdd.length)
{
app.thermometer.begin();
app.thermometer.text = IDS_PROGRESS_ADDING;
app.thermometer.duration = toAdd.length;
for(i = 0; toAdd && i < toAdd.length; app.thermometer.value = ++i)
{
var bookmark = Discussions.makeBookmark(toAdd[i].page, toAdd[i].name);
/*
console.println("WDAnnotStore.update(): adding " + toAdd.length);
console.println("this.doc.URL \""+ WDmungeURL(this.doc.URL) + "\"");
console.println("Markup");
console.println("toAdd[i].toSource() \""+ toAdd[i].toSource() + "\"");
console.println("bookmark \"" + bookmark + "\"");
*/
var discussion = Discussions.addDiscussion(WDmungeURL(this.doc.URL), "Markup", toAdd[i].toSource(), bookmark);
if (discussion && CBannotdata[toAdd[i].type])
CBPutReplyChain(discussion, bookmark, toAdd[i]);
}
app.thermometer.end();
}
return true;
}
}
/* Set up default annot stores */
Collab.addAnnotStore("NONE", IDS_STORE_NONE,
{create: function(doc, user, settings){ return null; }});
Collab.setStoreNoSettings("NONE", true);
if(typeof Discussions != "undefined")
{
Collab.addAnnotStore("WD", IDS_STORE_WEB_DISCUSSIONS,
{create: function(doc, user, settings){ return new WDAnnotStore(doc, user); }});
Collab.setStoreNoSettings("WD", true);
}
if(typeof ADBC != "undefined")
Collab.addAnnotStore("DB", IDS_STORE_DATABASE,
{create: function(doc, user, settings){ doc.collabDBRoot = settings; doc.collabDBFlags = CBFNiceTableName; return (settings && settings != "") ? new ADBCAnnotStore(doc, user) : null; }});
Collab.addAnnotStore("DAVFDF", IDS_STORE_DAVFDF,
{create: function(doc, user, settings){ return (settings && settings != "") ? new FSAnnotStore(doc, user, settings + doc.Collab.docID + "/", "CHTTP") : null; }});
Collab.addAnnotStore("FSFDF", IDS_STORE_FSFDF,
{create: function(doc, user, settings){ return (settings && settings != "") ? new FSAnnotStore(doc, user, settings + doc.Collab.docID + "/") : null; }});
Collab.setStoreFSBased("FSFDF", true);
// Web Discussion data block size
Collab.wdBlockSize = 16384;
}
function CBdef(a, b)
{
return typeof a == "undefined" ? b : a;
}
function Matrix2D(a, b, c, d, h, v)
{
this.a = CBdef(a, 1);
this.b = CBdef(b, 0);
this.c = CBdef(c, 0);
this.d = CBdef(d, 1);
this.h = CBdef(h, 0);
this.v = CBdef(v, 0);
this.fromRotated = function(doc, page)
{
page = CBdef(page, 0);
var cropBox = doc.getPageBox("Crop", page);
var mediaBox = doc.getPageBox("Media", page);
var mbHeight = mediaBox[1] - mediaBox[3];
var mbWidth = mediaBox[2] - mediaBox[0];
var rotation = doc.getPageRotation(page);
var m = new Matrix2D(1, 0, 0, 1, cropBox[0] - mediaBox[0], cropBox[3] - mediaBox[3]);
if(rotation == 90)
return this.concat(m.rotate(Math.asin(1.0)).translate(mbHeight, 0));
else if(rotation == 180)
return this.concat(m.rotate(2.0 * -Math.asin(1.0)).translate(mbWidth, mbHeight));
else if(rotation == 270)
return this.concat(m.rotate(-Math.asin(1.0)).translate(0, mbWidth));
return this.concat(m);
}
this.transform = function(pts)
{
var result = new Array(pts.length);
if(typeof pts[0] == "object")
for(var n = 0; n < pts.length; n++)
result[n] = this.transform(pts[n]);
else
for(var n = 0; n + 1 < pts.length; n += 2)
{
result[n] = this.a * pts[n] + this.c * pts[n + 1] + this.h;
result[n + 1] = this.b * pts[n] + this.d * pts[n + 1] + this.v;
}
return result;
}
this.concat = function(m)
{
return new Matrix2D(
(this.a * m.a) + (this.b * m.c),
(this.a * m.b) + (this.b * m.d),
(this.c * m.a) + (this.d * m.c),
(this.c * m.b) + (this.d * m.d),
(this.h * m.a) + (this.v * m.c) + m.h,
(this.h * m.b) + (this.v * m.d) + m.v);
}
this.invert = function()
{
var result = new Matrix2D;
var q = this.b * this.c - this.a * this.d;
if (q)
{
result.a = - this.d / q;
result.b = this.b / q;
result.c = this.c / q;
result.d = - this.a / q;
result.h = -(this.h * result.a + this.v * result.c);
result.v = -(this.h * result.b + this.v * result.d);
}
return result;
}
this.translate = function(dx, dy)
{
return this.concat(new Matrix2D(1, 0, 0, 1, CBdef(dx, 0), CBdef(dy, 0)));
}
this.scale = function(sx, sy)
{
return this.concat(new Matrix2D(CBdef(sx, 1), 0, 0, CBdef(sy, 1), 0, 0));
}
this.rotate = function(t)
{
t = CBdef(t, 0);
return this.concat(new Matrix2D(Math.cos(t), Math.sin(t), -Math.sin(t), Math.cos(t), 0, 0));
}
}