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processing4/app/src/processing/app/Settings.java at main · processing/processing4 · GitHub
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app
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processing
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app
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Settings.java
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processing4
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app
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src
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processing
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app
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Settings.java
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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
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
.
awt
.*;
import
java
.
io
.*;
import
java
.
util
.*;
import
processing
.
app
.
ui
.
Toolkit
;
import
processing
.
core
.*;
/**
* Storage class for theme settings. This was separated from the Preferences
* class for 1.0 so that the coloring wouldn't conflict with previous releases
* and to make way for future ability to customize.
*/
public
class
Settings
{
/**
* Copy of the defaults in case the user mangles a preference.
* It's necessary to keep a copy of the defaults around, because the user may
* have replaced a setting on their own. In the past, we used to load the
* defaults, then replace those with what was in the user's preferences file.
* Problem is, if something like a font entry in the user's file no longer
* parses properly, we need to be able to get back to a clean version of that
* setting so that we can recover.
*/
Map
<
String
,
String
>
defaults
;
/** Table of attributes/values. */
Map
<
String
,
String
>
table
=
new
HashMap
<>();
/** Associated file for this settings data. */
File
file
;
public
Settings
(
File
file
)
throws
IOException
{
this
.
file
=
file
;
if
(
file
.
exists
()) {
load
();
}
// clone the hash table
defaults
=
new
HashMap
<>(
table
);
}
public
void
load
() {
load
(
file
);
}
public
void
load
(
File
additions
) {
String
[]
lines
=
PApplet
.
loadStrings
(
additions
);
if
(
lines
!=
null
) {
for
(
String
line
:
lines
) {
if
((
line
.
length
() ==
0
) ||
(
line
.
charAt
(
0
) ==
'#'
))
continue
;
// this won't properly handle = signs being in the text
int
equals
=
line
.
indexOf
(
'='
);
if
(
equals
!= -
1
) {
String
key
=
line
.
substring
(
0
,
equals
).
trim
();
String
value
=
line
.
substring
(
equals
+
1
).
trim
();
table
.
put
(
key
,
value
);
}
}
}
else
{
Messages
.
err
(
additions
+
" could not be read"
);
}
// check for platform-specific properties in the defaults
String
platformExt
=
"."
+
Platform
.
getName
();
int
platformExtLength
=
platformExt
.
length
();
for
(
String
key
:
table
.
keySet
()) {
if
(
key
.
endsWith
(
platformExt
)) {
// this is a key specific to a particular platform
String
actualKey
=
key
.
substring
(
0
,
key
.
length
() -
platformExtLength
);
String
value
=
get
(
key
);
table
.
put
(
actualKey
,
value
);
}
}
}
public
void
save
() {
save
(
file
);
// save back to the original file
}
public
void
save
(
File
outputFile
) {
PrintWriter
writer
=
PApplet
.
createWriter
(
outputFile
);
String
[]
keyList
=
table
.
keySet
().
toArray
(
new
String
[
0
]);
// Sorting is really helpful for debugging, diffing, and finding keys
keyList
=
PApplet
.
sort
(
keyList
);
for
(
String
key
:
keyList
) {
writer
.
println
(
key
+
"="
+
table
.
get
(
key
));
}
writer
.
flush
();
writer
.
close
();
}
public
String
get
(
String
attribute
) {
return
table
.
get
(
attribute
);
}
public
String
getDefault
(
String
attribute
) {
return
defaults
.
get
(
attribute
);
}
public
void
set
(
String
attribute
,
String
value
) {
table
.
put
(
attribute
,
value
);
}
public
boolean
getBoolean
(
String
attribute
) {
String
value
=
get
(
attribute
);
if
(
value
==
null
) {
System
.
err
.
println
(
"Boolean not found: "
+
attribute
);
return
false
;
}
return
Boolean
.
parseBoolean
(
value
);
}
public
void
setBoolean
(
String
attribute
,
boolean
value
) {
set
(
attribute
,
value
?
"true"
:
"false"
);
}
public
int
getInteger
(
String
attribute
) {
String
value
=
get
(
attribute
);
if
(
value
==
null
) {
System
.
err
.
println
(
"Integer not found: "
+
attribute
);
return
0
;
}
return
Integer
.
parseInt
(
value
);
}
@
SuppressWarnings
(
"unused"
)
public
void
setInteger
(
String
key
,
int
value
) {
set
(
key
,
String
.
valueOf
(
value
));
}
/**
* Parse a color from a Settings file. Values are hexadecimal in either
* #RRGGBB (for opaque) or 0xAARRGGBB format (to include alpha).
*/
public
Color
getColor
(
String
attribute
) {
Color
outgoing
=
null
;
String
s
=
get
(
attribute
);
if
(
s
!=
null
) {
try
{
if
(
s
.
startsWith
(
"#"
)) {
// parse a 6-digit hex color
outgoing
=
new
Color
(
Integer
.
parseInt
(
s
.
substring
(
1
),
16
));
}
else
if
(
s
.
startsWith
(
"0x"
)) {
int
v
=
Integer
.
parseInt
(
s
.
substring
(
2
),
16
);
outgoing
=
new
Color
(
v
,
true
);
}
}
catch
(
Exception
ignored
) { }
}
if
(
outgoing
==
null
) {
System
.
err
.
println
(
"Could not parse color "
+
s
+
" for "
+
attribute
);
}
return
outgoing
;
}
public
void
setColor
(
String
attr
,
Color
what
) {
set
(
attr
,
"#"
+
PApplet
.
hex
(
what
.
getRGB
() &
0xffffff
,
6
));
}
// identical version found in Preferences.java
public
Font
getFont
(
String
attr
) {
try
{
boolean
replace
=
false
;
String
value
=
get
(
attr
);
if
(
value
==
null
) {
// use the default font instead
value
=
getDefault
(
attr
);
replace
=
true
;
}
String
[]
pieces
=
PApplet
.
split
(
value
,
','
);
if
(
pieces
.
length
!=
3
) {
value
=
getDefault
(
attr
);
pieces
=
PApplet
.
split
(
value
,
','
);
replace
=
true
;
}
String
name
=
pieces
[
0
];
int
style
=
Font
.
PLAIN
;
// equals zero
if
(
pieces
[
1
].
contains
(
"bold"
)) {
//$NON-NLS-1$
style
|=
Font
.
BOLD
;
}
if
(
pieces
[
1
].
contains
(
"italic"
)) {
//$NON-NLS-1$
style
|=
Font
.
ITALIC
;
}
int
size
=
PApplet
.
parseInt
(
pieces
[
2
],
12
);
size
=
Toolkit
.
zoom
(
size
);
// replace bad font with the default from lib/preferences.txt
if
(
replace
) {
set
(
attr
,
value
);
}
if
(!
name
.
startsWith
(
"processing."
)) {
return
new
Font
(
name
,
style
,
size
);
}
else
{
if
(
pieces
[
0
].
equals
(
"processing.sans"
)) {
return
Toolkit
.
getSansFont
(
size
,
style
);
}
else
if
(
pieces
[
0
].
equals
(
"processing.mono"
)) {
return
Toolkit
.
getMonoFont
(
size
,
style
);
}
}
}
catch
(
Exception
e
) {
// Adding try/catch block because this may be where
// a lot of startup crashes are happening.
Messages
.
log
(
"Error with font "
+
get
(
attr
) +
" for attribute "
+
attr
);
}
return
new
Font
(
"Dialog"
,
Font
.
PLAIN
,
12
);
}
public
String
remove
(
String
key
) {
return
table
.
remove
(
key
);
}
/**
* The day of reckoning: save() a file if it has entries, or delete
* if the file exists but the table no longer has any entries.
*/
public
void
reckon
() {
if
(
table
.
isEmpty
()) {
if
(
file
.
exists
() && !
file
.
delete
()) {
System
.
err
.
println
(
"Could not remove empty "
+
file
);
}
}
else
{
save
();
}
}
public
boolean
isEmpty
() {
return
table
.
isEmpty
();
}
public
void
print
() {
String
[]
keys
=
table
.
keySet
().
toArray
(
new
String
[
0
]);
Arrays
.
sort
(
keys
);
for
(
String
key
:
keys
) {
System
.
out
.
println
(
key
+
" = "
+
table
.
get
(
key
));
}
}
public
Map
<
String
,
String
>
getMap
() {
return
table
;
}
}
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