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processing/core/methods/src/PAppletMethods.java at master · darkcoderrises/processing · GitHub
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/
core
/
methods
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src
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PAppletMethods.java
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processing
/
core
/
methods
/
src
/
PAppletMethods.java
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import
java
.
io
.
BufferedReader
;
import
java
.
io
.
ByteArrayOutputStream
;
import
java
.
io
.
File
;
import
java
.
io
.
FileInputStream
;
import
java
.
io
.
FileNotFoundException
;
import
java
.
io
.
IOException
;
import
java
.
io
.
InputStreamReader
;
import
java
.
io
.
PrintStream
;
import
java
.
util
.
regex
.
Matcher
;
import
java
.
util
.
regex
.
Pattern
;
import
org
.
apache
.
tools
.
ant
.
BuildException
;
import
org
.
apache
.
tools
.
ant
.
Task
;
/**
* Ant Task for copying the PImage and PGraphics methods into PApplet.
*/
public
class
PAppletMethods
extends
Task
{
private
File
baseDir
;
private
boolean
includeRecorder
;
public
PAppletMethods
() {
}
public
void
setDir
(
String
dir
) {
baseDir
=
new
File
(
dir
);
}
public
void
setRecorder
(
boolean
rec
) {
includeRecorder
=
rec
;
}
public
void
execute
()
throws
BuildException
{
// Do a bunch of checks...
if
(
baseDir
==
null
) {
throw
new
BuildException
(
"dir parameter must be set!"
);
}
//System.out.println("using basedir " + baseDir);
File
graphicsFile
=
new
File
(
baseDir
,
"PGraphics.java"
);
File
appletFile
=
new
File
(
baseDir
,
"PApplet.java"
);
File
imageFile
=
new
File
(
baseDir
,
"PImage.java"
);
if
(!
graphicsFile
.
exists
() || !
graphicsFile
.
canRead
()) {
throw
new
BuildException
(
"PGraphics file not readable: "
+
graphicsFile
.
getAbsolutePath
());
}
if
(!
appletFile
.
exists
() ||
!
appletFile
.
canRead
() ||
!
appletFile
.
canWrite
()) {
throw
new
BuildException
(
"PApplet file not read/writeable: "
+
appletFile
.
getAbsolutePath
());
}
if
(!
imageFile
.
exists
() || !
imageFile
.
canRead
()) {
throw
new
BuildException
(
"PImage file not readable: "
+
imageFile
.
getAbsolutePath
());
}
// Looking good, let's do this!
//ByteArrayOutputStream outBytes = new ByteArrayOutputStream();
//PrintStream out = new PrintStream(outBytes, "UTF-8");
StringBuilder
out
=
new
StringBuilder
();
StringBuilder
content
=
new
StringBuilder
();
try
{
BufferedReader
applet
=
createReader
(
appletFile
);
String
line
;
while
((
line
=
applet
.
readLine
()) !=
null
) {
out
.
append
(
line
);
out
.
append
(
'\n'
);
// to avoid Windows CRs
content
.
append
(
line
);
content
.
append
(
'\n'
);
// for efficiency
if
(
line
.
indexOf
(
"public functions for processing.core"
) >=
0
) {
break
;
}
}
// read the rest of the file and append it to the
while
((
line
=
applet
.
readLine
()) !=
null
) {
content
.
append
(
line
);
content
.
append
(
'\n'
);
}
applet
.
close
();
process
(
out
,
graphicsFile
);
process
(
out
,
imageFile
);
out
.
append
(
'}'
);
out
.
append
(
'\n'
);
//} catch (IOException e) {
//e.printStackTrace();
}
catch
(
Exception
e
) {
//ex.printStackTrace();
throw
new
BuildException
(
e
);
}
//out.flush();
String
outString
=
out
.
toString
();
if
(
content
.
toString
().
equals
(
outString
)) {
System
.
out
.
println
(
"No changes to PApplet API."
);
}
else
{
System
.
out
.
println
(
"Updating PApplet with API changes "
+
"from PImage or PGraphics."
);
try
{
PrintStream
temp
=
new
PrintStream
(
appletFile
,
"UTF-8"
);
temp
.
print
(
outString
);
temp
.
flush
();
temp
.
close
();
}
catch
(
IOException
e
) {
//e.printStackTrace();
throw
new
BuildException
(
e
);
}
}
}
private
void
process
(
StringBuilder
out
,
File
input
)
throws
IOException
{
BufferedReader
in
=
createReader
(
input
);
int
comments
=
0
;
String
line
=
null
;
StringBuilder
commentBuffer
=
new
StringBuilder
();
while
((
line
=
in
.
readLine
()) !=
null
) {
String
decl
=
""
;
// Keep track of comments
//if (line.matches(Pattern.quote("/*"))) {
if
(
line
.
indexOf
(
"/*"
) != -
1
) {
comments
++;
}
//if (line.matches(Pattern.quote("*/"))) {
if
(
line
.
indexOf
(
"*/"
) != -
1
) {
commentBuffer
.
append
(
line
);
commentBuffer
.
append
(
'\n'
);
//System.out.println("comment is: " + commentBuffer.toString());
comments
--;
// otherwise gotSomething will be false, and nuke the comment
continue
;
}
// Ignore everything inside comments
if
(
comments
>
0
) {
commentBuffer
.
append
(
line
);
commentBuffer
.
append
(
'\n'
);
continue
;
}
boolean
gotSomething
=
false
;
boolean
gotStatic
=
false
;
Matcher
result
;
if
((
result
=
Pattern
.
compile
(
"^
\\
s*public ([
\\
w
\\
[
\\
]]+) [a-zA-z_]+
\\
(.*$"
).
matcher
(
line
)).
matches
()) {
gotSomething
=
true
;
}
else
if
((
result
=
Pattern
.
compile
(
"^
\\
s*abstract public ([
\\
w
\\
[
\\
]]+) [a-zA-z_]+
\\
(.*$"
).
matcher
(
line
)).
matches
()) {
gotSomething
=
true
;
}
else
if
((
result
=
Pattern
.
compile
(
"^
\\
s*public final ([
\\
w
\\
[
\\
]]+) [a-zA-z_]+
\\
(.*$"
).
matcher
(
line
)).
matches
()) {
gotSomething
=
true
;
}
else
if
((
result
=
Pattern
.
compile
(
"^
\\
s*static public ([
\\
w
\\
[
\\
]]+) [a-zA-z_]+
\\
(.*$"
).
matcher
(
line
)).
matches
()) {
gotSomething
=
true
;
gotStatic
=
true
;
}
// if function is marked "// ignore" then, uh, ignore it.
if
(
gotSomething
&&
line
.
indexOf
(
"// ignore"
) >=
0
) {
gotSomething
=
false
;
}
String
returns
=
""
;
if
(
gotSomething
) {
if
(
result
.
group
(
1
).
equals
(
"void"
)) {
returns
=
""
;
}
else
{
returns
=
"return "
;
}
// remove the abstract modifier
line
=
line
.
replaceFirst
(
Pattern
.
quote
(
"abstract"
),
" "
);
// replace semicolons with a start def
line
=
line
.
replaceAll
(
Pattern
.
quote
(
";"
),
" {
\n
"
);
//out.println("\n\n" + line);
out
.
append
(
'\n'
);
out
.
append
(
'\n'
);
// end has its own newline
//out.print(commentBuffer.toString()); // TODO disabled for now XXXX
out
.
append
(
commentBuffer
.
toString
());
// duplicates all comments
commentBuffer
.
setLength
(
0
);
out
.
append
(
line
);
out
.
append
(
'\n'
);
decl
+=
line
;
while
(
line
.
indexOf
(
')'
) == -
1
) {
line
=
in
.
readLine
();
decl
+=
line
;
line
=
line
.
replaceAll
(
"
\\
;
\\
s*$"
,
" {
\n
"
);
out
.
append
(
line
);
out
.
append
(
'\n'
);
}
result
=
Pattern
.
compile
(
".*?
\\
s(
\\
S+)
\\
(.*?"
).
matcher
(
decl
);
// try to match. don't remove this or things will stop working!
result
.
matches
();
String
declName
=
result
.
group
(
1
);
String
gline
=
""
;
String
rline
=
""
;
if
(
gotStatic
) {
gline
=
" "
+
returns
+
"PGraphics."
+
declName
+
"("
;
}
else
{
rline
=
" if (recorder != null) recorder."
+
declName
+
"("
;
gline
=
" "
+
returns
+
"g."
+
declName
+
"("
;
}
decl
=
decl
.
replaceAll
(
"
\\
s+"
,
" "
);
// smush onto a single line
decl
=
decl
.
replaceFirst
(
"^.*
\\
("
,
""
);
decl
=
decl
.
replaceFirst
(
"
\\
).*$"
,
""
);
int
prev
=
0
;
String
parts
[] =
decl
.
split
(
"
\\
, "
);
for
(
String
part
:
parts
) {
if
(!
part
.
trim
().
equals
(
""
)) {
String
blargh
[] =
part
.
split
(
" "
);
String
theArg
=
blargh
[
1
].
replaceAll
(
"[
\\
[
\\
]]"
,
""
);
if
(
prev
!=
0
) {
gline
+=
", "
;
rline
+=
", "
;
}
gline
+=
theArg
;
rline
+=
theArg
;
prev
=
1
;
}
}
gline
+=
");"
;
rline
+=
");"
;
if
(!
gotStatic
&&
returns
.
equals
(
""
) &&
includeRecorder
) {
out
.
append
(
rline
);
out
.
append
(
'\n'
);
}
out
.
append
(
gline
);
out
.
append
(
'\n'
);
out
.
append
(
" }"
);
out
.
append
(
'\n'
);
}
else
{
commentBuffer
.
setLength
(
0
);
}
}
in
.
close
();
}
static
BufferedReader
createReader
(
File
file
)
throws
IOException
{
FileInputStream
fis
=
new
FileInputStream
(
file
);
return
new
BufferedReader
(
new
InputStreamReader
(
fis
,
"UTF-8"
));
}
}
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