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processing/app/src/processing/app/SketchCode.java at master · hayscoding/processing · GitHub
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SketchCode.java
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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
SketchCode - data class for a single file inside a sketch
Part of the Processing project - http://processing.org
Copyright (c) 2004-11 Ben Fry and Casey Reas
Copyright (c) 2001-04 Massachusetts Institute of Technology
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package
processing
.
app
;
import
java
.
io
.*;
import
javax
.
swing
.
text
.
BadLocationException
;
import
javax
.
swing
.
text
.
Document
;
import
javax
.
swing
.
undo
.*;
/**
* Represents a single tab of a sketch.
*/
public
class
SketchCode
{
/** Pretty name (no extension), not the full file name */
private
String
prettyName
;
/** File object for where this code is located */
private
File
file
;
/** Extension for this file (no dots, and in lowercase). */
private
String
extension
;
/** Text of the program text for this tab */
private
String
program
;
/** Last version of the program on disk. */
private
String
savedProgram
;
/** Document object for this tab. Currently this is a SyntaxDocument. */
private
Document
document
;
/** Last time this tab was visited */
long
visited
;
/** The last time this tab was saved to disk */
private
long
lastModified
;
/**
* Undo Manager for this tab, each tab keeps track of their own
* Editor.undo will be set to this object when this code is the tab
* that's currently the front.
*/
private
UndoManager
undo
=
new
UndoManager
();
/** What was on top of the undo stack when last saved. */
// private UndoableEdit lastEdit;
// saved positions from last time this tab was used
private
int
selectionStart
;
private
int
selectionStop
;
private
int
scrollPosition
;
private
boolean
modified
;
/** name of .java file after preproc */
// private String preprocName;
/** where this code starts relative to the concat'd code */
private
int
preprocOffset
;
public
SketchCode
(
File
file
,
String
extension
) {
this
.
file
=
file
;
this
.
extension
=
extension
;
makePrettyName
();
try
{
load
();
}
catch
(
IOException
e
) {
System
.
err
.
println
(
"Error while loading code "
+
file
.
getName
());
}
}
protected
void
makePrettyName
() {
prettyName
=
file
.
getName
();
int
dot
=
prettyName
.
lastIndexOf
(
'.'
);
prettyName
=
prettyName
.
substring
(
0
,
dot
);
}
public
File
getFile
() {
return
file
;
}
protected
boolean
fileExists
() {
return
file
.
exists
();
}
protected
boolean
fileReadOnly
() {
return
!
file
.
canWrite
();
}
protected
boolean
deleteFile
() {
return
file
.
delete
();
}
protected
boolean
renameTo
(
File
what
,
String
ext
) {
// System.out.println("renaming " + file);
// System.out.println(" to " + what);
boolean
success
=
file
.
renameTo
(
what
);
if
(
success
) {
this
.
file
=
what
;
// necessary?
this
.
extension
=
ext
;
makePrettyName
();
}
return
success
;
}
public
void
copyTo
(
File
dest
)
throws
IOException
{
Util
.
saveFile
(
program
,
dest
);
}
public
String
getFileName
() {
return
file
.
getName
();
}
public
String
getPrettyName
() {
return
prettyName
;
}
public
String
getExtension
() {
return
extension
;
}
public
boolean
isExtension
(
String
what
) {
return
extension
.
equals
(
what
);
}
/** get the current text for this tab */
public
String
getProgram
() {
return
program
;
}
/** set the current text for this tab */
public
void
setProgram
(
String
replacement
) {
program
=
replacement
;
}
/** get the last version saved of this tab */
public
String
getSavedProgram
() {
return
savedProgram
;
}
public
int
getLineCount
() {
return
Util
.
countLines
(
program
);
}
public
void
setModified
(
boolean
modified
) {
this
.
modified
=
modified
;
}
public
boolean
isModified
() {
return
modified
;
}
// public void setPreprocName(String preprocName) {
// this.preprocName = preprocName;
// }
//
//
// public String getPreprocName() {
// return preprocName;
// }
public
void
setPreprocOffset
(
int
preprocOffset
) {
this
.
preprocOffset
=
preprocOffset
;
}
public
int
getPreprocOffset
() {
return
preprocOffset
;
}
public
void
addPreprocOffset
(
int
extra
) {
preprocOffset
+=
extra
;
}
public
Document
getDocument
() {
return
document
;
}
public
String
getDocumentText
()
throws
BadLocationException
{
return
document
.
getText
(
0
,
document
.
getLength
());
}
public
void
setDocument
(
Document
d
) {
document
=
d
;
}
public
UndoManager
getUndo
() {
return
undo
;
}
// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
// TODO these could probably be handled better, since it's a general state
// issue that's read/write from only one location in Editor (on tab switch.)
public
int
getSelectionStart
() {
return
selectionStart
;
}
public
int
getSelectionStop
() {
return
selectionStop
;
}
public
int
getScrollPosition
() {
return
scrollPosition
;
}
protected
void
setState
(
String
p
,
int
start
,
int
stop
,
int
pos
) {
program
=
p
;
selectionStart
=
start
;
selectionStop
=
stop
;
scrollPosition
=
pos
;
}
public
long
lastVisited
() {
return
visited
;
}
// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
/**
* Load this piece of code from a file.
*/
public
void
load
()
throws
IOException
{
program
=
Util
.
loadFile
(
file
);
if
(
program
==
null
) {
System
.
err
.
println
(
"There was a problem loading "
+
file
);
System
.
err
.
println
(
"This may happen because you don't have permissions to read the file, or the file has gone missing."
);
throw
new
IOException
(
"Cannot read or access "
+
file
);
}
// Remove NUL characters because they'll cause problems,
// and their presence is very difficult to debug.
// https://github.com/processing/processing/issues/1973
if
(
program
.
indexOf
(
'\0'
) != -
1
) {
program
=
program
.
replaceAll
(
"
\0
"
,
""
);
}
savedProgram
=
program
;
// This used to be the "Fix Encoding and Reload" warning, but since that
// tool has been removed, let's ramble about text editors and encodings.
if
(
program
.
indexOf
(
'\uFFFD'
) != -
1
) {
System
.
err
.
println
(
file
.
getName
() +
" contains unrecognized characters."
);
System
.
err
.
println
(
"You should re-open "
+
file
.
getName
() +
" with a text editor,"
);
System
.
err
.
println
(
"and re-save it in UTF-8 format. Otherwise, you can"
);
System
.
err
.
println
(
"delete the bad characters to get rid of this warning."
);
System
.
err
.
println
();
}
setLastModified
();
setModified
(
false
);
}
/**
* Save this piece of code, regardless of whether the modified
* flag is set or not.
*/
public
void
save
()
throws
IOException
{
// TODO re-enable history
//history.record(s, SketchHistory.SAVE);
Util
.
saveFile
(
program
,
file
);
savedProgram
=
program
;
lastModified
=
file
.
lastModified
();
setModified
(
false
);
}
/**
* Save this file to another location, used by Sketch.saveAs()
*/
public
void
saveAs
(
File
newFile
)
throws
IOException
{
Util
.
saveFile
(
program
,
newFile
);
savedProgram
=
program
;
file
=
newFile
;
makePrettyName
();
setLastModified
();
setModified
(
false
);
}
/**
* Called when the sketch folder name/location has changed. Called when
* renaming tab 0, the main code.
*/
public
void
setFolder
(
File
sketchFolder
) {
file
=
new
File
(
sketchFolder
,
file
.
getName
());
}
/**
* Set the last known modification time, so that we're not re-firing
* "hey, this is modified!" events incessantly.
*/
public
void
setLastModified
() {
lastModified
=
file
.
lastModified
();
}
/**
* Used to determine whether this file was modified externally
* @return The time the file was last modified
*/
public
long
getLastModified
() {
return
lastModified
;
}
}
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