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processing/app/src/processing/app/syntax/TextAreaPainter.java at master · ishit/processing · GitHub
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processing
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syntax
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TextAreaPainter.java
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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* TextAreaPainter.java - Paints the text area
* Copyright (C) 1999 Slava Pestov
*
* You may use and modify this package for any purpose. Redistribution is
* permitted, in both source and binary form, provided that this notice
* remains intact in all source distributions of this package.
*/
package
processing
.
app
.
syntax
;
import
java
.
awt
.
event
.
MouseEvent
;
import
java
.
awt
.*;
import
java
.
awt
.
print
.*;
import
javax
.
swing
.
ToolTipManager
;
import
javax
.
swing
.
text
.*;
import
javax
.
swing
.
JComponent
;
import
processing
.
app
.
Preferences
;
import
processing
.
app
.
syntax
.
im
.
CompositionTextPainter
;
/**
* The text area repaint manager. It performs double buffering and paints
* lines of text.
* @author Slava Pestov
*/
public
class
TextAreaPainter
extends
JComponent
implements
TabExpander
{
/** True if inside printing, will handle disabling the highlight */
boolean
printing
;
/** A specific painter composed by the InputMethod.*/
protected
CompositionTextPainter
compositionTextPainter
;
protected
JEditTextArea
textArea
;
protected
TextAreaDefaults
defaults
;
// protected boolean blockCaret;
// protected SyntaxStyle[] styles;
// protected Color caretColor;
// protected Color selectionColor;
// protected Color lineHighlightColor;
// protected boolean lineHighlight;
// protected Color bracketHighlightColor;
// protected boolean bracketHighlight;
// protected Color eolMarkerColor;
// protected boolean eolMarkers;
// protected int cols;
// protected int rows;
// moved from TextAreaDefaults
private
Font
plainFont
;
private
Font
boldFont
;
private
boolean
antialias
;
// private Color fgcolor;
// private Color bgcolor;
protected
int
tabSize
;
protected
FontMetrics
fm
;
protected
Highlight
highlights
;
int
currentLineIndex
;
Token
currentLineTokens
;
Segment
currentLine
;
/**
* Creates a new repaint manager. This should be not be called directly.
*/
public
TextAreaPainter
(
JEditTextArea
textArea
,
TextAreaDefaults
defaults
) {
this
.
textArea
=
textArea
;
this
.
defaults
=
defaults
;
setAutoscrolls
(
true
);
// setDoubleBuffered(true);
setOpaque
(
true
);
ToolTipManager
.
sharedInstance
().
registerComponent
(
this
);
currentLine
=
new
Segment
();
currentLineIndex
= -
1
;
setCursor
(
Cursor
.
getPredefinedCursor
(
Cursor
.
TEXT_CURSOR
));
// // unfortunately probably can't just do setDefaults() since things aren't quite set up
// setFont(defaults.plainFont);
//// System.out.println("defaults font is " + defaults.font);
// setForeground(defaults.fgcolor);
// setBackground(defaults.bgcolor);
updateAppearance
();
// blockCaret = defaults.blockCaret;
// styles = defaults.styles;
// caretColor = defaults.caretColor;
// selectionColor = defaults.selectionColor;
// lineHighlightColor = defaults.lineHighlightColor;
// lineHighlight = defaults.lineHighlight;
// bracketHighlightColor = defaults.bracketHighlightColor;
// bracketHighlight = defaults.bracketHighlight;
// eolMarkerColor = defaults.eolMarkerColor;
// eolMarkers = defaults.eolMarkers;
// antialias = defaults.antialias;
// cols = defaults.cols;
// rows = defaults.rows;
}
public
void
updateAppearance
() {
// // unfortunately probably can't just do setDefaults() since things aren't quite set up
// setFont(defaults.plainFont);
//// System.out.println("defaults font is " + defaults.font);
setForeground
(
defaults
.
fgcolor
);
setBackground
(
defaults
.
bgcolor
);
String
fontFamily
=
Preferences
.
get
(
"editor.font.family"
);
int
fontSize
=
Preferences
.
getInteger
(
"editor.font.size"
);
plainFont
=
new
Font
(
fontFamily
,
Font
.
PLAIN
,
fontSize
);
if
(!
fontFamily
.
equals
(
plainFont
.
getFamily
())) {
System
.
err
.
println
(
fontFamily
+
" not available, resetting to monospaced"
);
fontFamily
=
"Monospaced"
;
Preferences
.
set
(
"editor.font.family"
,
fontFamily
);
plainFont
=
new
Font
(
fontFamily
,
Font
.
PLAIN
,
fontSize
);
}
boldFont
=
new
Font
(
fontFamily
,
Font
.
BOLD
,
fontSize
);
antialias
=
Preferences
.
getBoolean
(
"editor.smooth"
);
// System.out.println(plainFont.getFamily());
// System.out.println(plainFont);
// moved from setFont() override (never quite comfortable w/ that override)
fm
=
super
.
getFontMetrics
(
plainFont
);
textArea
.
recalculateVisibleLines
();
// fgcolor = mode.getColor("editor.fgcolor");
// bgcolor = mode.getColor("editor.bgcolor");
}
/*
public void setDefaults(TextAreaDefaults defaults) {
setFont(defaults.font);
setForeground(defaults.fgcolor);
setBackground(defaults.bgcolor);
setBlockCaretEnabled(defaults.blockCaret);
setStyles(defaults.styles);
setCaretColor(defaults.caretColor);
setSelectionColor(defaults.selectionColor);
setLineHighlightColor(defaults.lineHighlightColor);
setLineHighlightEnabled(defaults.lineHighlight);
setBracketHighlightColor(defaults.bracketHighlightColor);
setBracketHighlightEnabled(defaults.bracketHighlight);
setEOLMarkerColor(defaults.eolMarkerColor);
setEOLMarkersPainted(defaults.eolMarkers);
setAntialias(defaults.antialias);
// only used for getPreferredSize()
cols = defaults.cols;
rows = defaults.rows;
}
*/
/**
* Get CompositionTextPainter, creating one if it doesn't exist.
*/
public
CompositionTextPainter
getCompositionTextpainter
() {
if
(
compositionTextPainter
==
null
){
compositionTextPainter
=
new
CompositionTextPainter
(
textArea
);
}
return
compositionTextPainter
;
}
/**
* Returns the syntax styles used to paint colorized text. Entry <i>n</i>
* will be used to paint tokens with id = <i>n</i>.
* @see processing.app.syntax.Token
*/
public
final
SyntaxStyle
[]
getStyles
() {
return
defaults
.
styles
;
}
// /**
// * Sets the syntax styles used to paint colorized text. Entry <i>n</i>
// * will be used to paint tokens with id = <i>n</i>.
// * @param styles The syntax styles
// * @see processing.app.syntax.Token
// */
// public final void setStyles(SyntaxStyle[] styles) {
// this.styles = styles;
// repaint();
// }
// /**
// * Returns the caret color.
// */
// public final Color getCaretColor() {
// return caretColor;
// }
// /**
// * Sets the caret color.
// * @param caretColor The caret color
// */
// public final void setCaretColor(Color caretColor) {
// this.caretColor = caretColor;
// invalidateSelectedLines();
// }
// /**
// * Returns the selection color.
// */
// public final Color getSelectionColor() {
// return selectionColor;
// }
// /**
// * Sets the selection color.
// * @param selectionColor The selection color
// */
// public final void setSelectionColor(Color selectionColor) {
// this.selectionColor = selectionColor;
// invalidateSelectedLines();
// }
// /**
// * Returns the line highlight color.
// */
// public final Color getLineHighlightColor() {
// return lineHighlightColor;
// }
// /**
// * Sets the line highlight color.
// * @param lineHighlightColor The line highlight color
// */
// public final void setLineHighlightColor(Color lineHighlightColor) {
// this.lineHighlightColor = lineHighlightColor;
// invalidateSelectedLines();
// }
// /**
// * Returns true if line highlight is enabled, false otherwise.
// */
// public final boolean isLineHighlightEnabled() {
// return lineHighlight;
// }
/**
* Enables or disables current line highlighting.
* @param lineHighlight True if current line highlight
* should be enabled, false otherwise
*/
public
final
void
setLineHighlightEnabled
(
boolean
lineHighlight
) {
// this.lineHighlight = lineHighlight;
defaults
.
lineHighlight
=
lineHighlight
;
invalidateSelectedLines
();
}
// /**
// * Returns the bracket highlight color.
// */
// public final Color getBracketHighlightColor() {
// return bracketHighlightColor;
// }
// /**
// * Sets the bracket highlight color.
// * @param bracketHighlightColor The bracket highlight color
// */
// public final void setBracketHighlightColor(Color bracketHighlightColor) {
// this.bracketHighlightColor = bracketHighlightColor;
// invalidateLine(textArea.getBracketLine());
// }
/**
* Returns true if bracket highlighting is enabled, false otherwise.
* When bracket highlighting is enabled, the bracket matching the
* one before the caret (if any) is highlighted.
*/
public
final
boolean
isBracketHighlightEnabled
() {
// return bracketHighlight;
return
defaults
.
bracketHighlight
;
}
// /**
// * Enables or disables bracket highlighting.
// * When bracket highlighting is enabled, the bracket matching the
// * one before the caret (if any) is highlighted.
// * @param bracketHighlight True if bracket highlighting should be
// * enabled, false otherwise
// */
// public final void setBracketHighlightEnabled(boolean bracketHighlight) {
// this.bracketHighlight = bracketHighlight;
// invalidateLine(textArea.getBracketLine());
// }
/**
* Returns true if the caret should be drawn as a block, false otherwise.
*/
public
final
boolean
isBlockCaretEnabled
() {
return
defaults
.
blockCaret
;
}
// /**
// * Sets if the caret should be drawn as a block, false otherwise.
// * @param blockCaret True if the caret should be drawn as a block,
// * false otherwise.
// */
// public final void setBlockCaretEnabled(boolean blockCaret) {
// this.blockCaret = blockCaret;
// invalidateSelectedLines();
// }
// /**
// * Returns the EOL marker color.
// */
// public final Color getEOLMarkerColor() {
// return eolMarkerColor;
// }
// /**
// * Sets the EOL marker color.
// * @param eolMarkerColor The EOL marker color
// */
// public final void setEOLMarkerColor(Color eolMarkerColor) {
// this.eolMarkerColor = eolMarkerColor;
// repaint();
// }
// /**
// * Returns true if EOL markers are drawn, false otherwise.
// */
// public final boolean getEOLMarkersPainted() {
// return eolMarkers;
// }
// /**
// * Sets if EOL markers are to be drawn.
// * @param eolMarkers True if EOL markers should be drawn, false otherwise
// */
// public final void setEOLMarkersPainted(boolean eolMarkers) {
// this.eolMarkers = eolMarkers;
// repaint();
// }
// public final void setAntialias(boolean antialias) {
// this.antialias = antialias;
// }
// /**
// * Adds a custom highlight painter.
// * @param highlight The highlight
// */
// public void addCustomHighlight(Highlight highlight) {
// highlight.init(textArea,highlights);
// highlights = highlight;
// }
/**
* Highlight interface.
*/
public
interface
Highlight
{
/**
* Called after the highlight painter has been added.
* @param textArea The text area
* @param next The painter this one should delegate to
*/
void
init
(
JEditTextArea
textArea
,
Highlight
next
);
/**
* This should paint the highlight and delgate to the
* next highlight painter.
* @param gfx The graphics context
* @param line The line number
* @param y The y co-ordinate of the line
*/
void
paintHighlight
(
Graphics
gfx
,
int
line
,
int
y
);
/**
* Returns the tool tip to display at the specified
* location. If this highlighter doesn't know what to
* display, it should delegate to the next highlight
* painter.
* @param evt The mouse event
*/
String
getToolTipText
(
MouseEvent
evt
);
}
// /**
// * Returns the tool tip to display at the specified location.
// * @param evt The mouse event
// */
// public String getToolTipText(MouseEvent evt) {
// return (highlights == null) ? null : highlights.getToolTipText(evt);
// }
/** Returns the font metrics used by this component. */
public
FontMetrics
getFontMetrics
() {
return
fm
;
}
public
FontMetrics
getFontMetrics
(
SyntaxStyle
style
) {
// return getFontMetrics(style.isBold() ?
// defaults.boldFont : defaults.plainFont);
return
getFontMetrics
(
style
.
isBold
() ?
boldFont
:
plainFont
);
}
// /**
// * Sets the font for this component. This is overridden to update the
// * cached font metrics and to recalculate which lines are visible.
// * @param font The font
// */
// public void setFont(Font font) {
//// new Exception().printStackTrace(System.out);
// super.setFont(font);
// fm = super.getFontMetrics(font);
// textArea.recalculateVisibleLines();
// }
/**
* Repaints the text.
* @param gfx The graphics context
*/
public
void
paint
(
Graphics
gfx
) {
Graphics2D
g2
= (
Graphics2D
)
gfx
;
g2
.
setRenderingHint
(
RenderingHints
.
KEY_TEXT_ANTIALIASING
,
antialias
?
RenderingHints
.
VALUE_TEXT_ANTIALIAS_ON
:
RenderingHints
.
VALUE_TEXT_ANTIALIAS_OFF
);
// no effect, one way or the other
// g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
// RenderingHints.VALUE_FRACTIONALMETRICS_ON);
tabSize
=
fm
.
charWidth
(
' '
) * ((
Integer
)
textArea
.
getDocument
().
getProperty
(
PlainDocument
.
tabSizeAttribute
)).
intValue
();
Rectangle
clipRect
=
gfx
.
getClipBounds
();
gfx
.
setColor
(
getBackground
());
gfx
.
fillRect
(
clipRect
.
x
,
clipRect
.
y
,
clipRect
.
width
,
clipRect
.
height
);
// We don't use yToLine() here because that method doesn't
// return lines past the end of the document
int
height
=
fm
.
getHeight
();
int
firstLine
=
textArea
.
getFirstLine
();
int
firstInvalid
=
firstLine
+
clipRect
.
y
/
height
;
// Because the clipRect's height is usually an even multiple
// of the font height, we subtract 1 from it, otherwise one
// too many lines will always be painted.
int
lastInvalid
=
firstLine
+ (
clipRect
.
y
+
clipRect
.
height
-
1
) /
height
;
try
{
TokenMarker
tokenMarker
=
textArea
.
getDocument
().
getTokenMarker
();
int
x
=
textArea
.
getHorizontalOffset
();
for
(
int
line
=
firstInvalid
;
line
<=
lastInvalid
;
line
++) {
paintLine
(
gfx
,
line
,
x
,
tokenMarker
);
}
if
(
tokenMarker
!=
null
&&
tokenMarker
.
isNextLineRequested
()) {
int
h
=
clipRect
.
y
+
clipRect
.
height
;
repaint
(
0
,
h
,
getWidth
(),
getHeight
() -
h
);
}
}
catch
(
Exception
e
) {
System
.
err
.
println
(
"Error repainting line"
+
" range {"
+
firstInvalid
+
","
+
lastInvalid
+
"}:"
);
e
.
printStackTrace
();
}
}
public
Printable
getPrintable
() {
return
new
Printable
() {
@
Override
public
int
print
(
Graphics
graphics
,
PageFormat
pageFormat
,
int
pageIndex
)
throws
PrinterException
{
int
lineHeight
=
fm
.
getHeight
();
int
linesPerPage
= (
int
) (
pageFormat
.
getImageableHeight
() /
lineHeight
);
int
lineCount
=
textArea
.
getLineCount
();
int
lastPage
=
lineCount
/
linesPerPage
;
if
(
pageIndex
>
lastPage
) {
return
NO_SUCH_PAGE
;
}
else
{
Graphics2D
g2
= (
Graphics2D
)
graphics
;
TokenMarker
tokenMarker
=
textArea
.
getDocument
().
getTokenMarker
();
int
firstLine
=
pageIndex
*
linesPerPage
;
g2
.
translate
(
Math
.
max
(
54
,
pageFormat
.
getImageableX
()),
pageFormat
.
getImageableY
() -
firstLine
*
lineHeight
);
printing
=
true
;
for
(
int
line
=
firstLine
;
line
<
firstLine
+
linesPerPage
;
line
++) {
paintLine
(
g2
,
line
,
0
,
tokenMarker
);
}
printing
=
false
;
return
PAGE_EXISTS
;
}
}
};
}
/**
* Marks a line as needing a repaint.
* @param line The line to invalidate
*/
final
public
void
invalidateLine
(
int
line
) {
repaint
(
0
,
textArea
.
lineToY
(
line
) +
fm
.
getMaxDescent
() +
fm
.
getLeading
(),
getWidth
(),
fm
.
getHeight
());
}
/**
* Marks a range of lines as needing a repaint.
* @param firstLine The first line to invalidate
* @param lastLine The last line to invalidate
*/
final
void
invalidateLineRange
(
int
firstLine
,
int
lastLine
) {
repaint
(
0
,
textArea
.
lineToY
(
firstLine
) +
fm
.
getMaxDescent
() +
fm
.
getLeading
(),
getWidth
(),(
lastLine
-
firstLine
+
1
) *
fm
.
getHeight
());
}
/** Repaints the lines containing the selection. */
final
void
invalidateSelectedLines
() {
invalidateLineRange
(
textArea
.
getSelectionStartLine
(),
textArea
.
getSelectionStopLine
());
}
/** Returns next tab stop after a specified point. */
// TabExpander tabExpander = new TabExpander() {
@
Override
public
float
nextTabStop
(
float
x
,
int
tabOffset
) {
int
offset
=
textArea
.
getHorizontalOffset
();
int
ntabs
= ((
int
)
x
-
offset
) /
tabSize
;
return
(
ntabs
+
1
) *
tabSize
+
offset
;
}
// };
// do we go here? do will kill tabs?
// public float nextTabStop(float x, int tabOffset) {
// return x;
// }
public
Dimension
getPreferredSize
() {
return
new
Dimension
(
fm
.
charWidth
(
'w'
) *
defaults
.
cols
,
fm
.
getHeight
() *
defaults
.
rows
);
}
public
Dimension
getMinimumSize
() {
return
getPreferredSize
();
}
/**
* Accessor used by tools that want to hook in and grab the formatting.
*/
public
int
getCurrentLineIndex
() {
return
currentLineIndex
;
}
/**
* Accessor used by tools that want to hook in and grab the formatting.
*/
public
void
setCurrentLineIndex
(
int
what
) {
currentLineIndex
=
what
;
}
/**
* Accessor used by tools that want to hook in and grab the formatting.
*/
public
Token
getCurrentLineTokens
() {
return
currentLineTokens
;
}
/**
* Accessor used by tools that want to hook in and grab the formatting.
*/
public
void
setCurrentLineTokens
(
Token
tokens
) {
currentLineTokens
=
tokens
;
}
/**
* Accessor used by tools that want to hook in and grab the formatting.
*/
public
Segment
getCurrentLine
() {
return
currentLine
;
}
// /** Old paintLine() method with kooky args order, kept around for X Mode. */
// @Deprecated
// protected void paintLine(Graphics gfx, TokenMarker tokenMarker,
// int line, int x) {
// Font defaultFont = getFont();
// Color defaultColor = getForeground();
protected
void
paintLine
(
Graphics
gfx
,
int
line
,
int
x
,
TokenMarker
tokenMarker
) {
currentLineIndex
=
line
;
int
y
=
textArea
.
lineToY
(
line
);
if
(
tokenMarker
==
null
) {
//paintPlainLine(gfx, line, defaultFont, defaultColor, x, y);
paintPlainLine
(
gfx
,
line
,
x
,
y
);
}
else
if
(
line
>=
0
&&
line
<
textArea
.
getLineCount
()) {
//paintSyntaxLine(gfx, tokenMarker, line, defaultFont, defaultColor, x, y);
paintSyntaxLine
(
gfx
,
line
,
x
,
y
,
tokenMarker
);
}
}
// protected void paintLine(Graphics gfx, int line, int x,
// TokenMarker tokenMarker) {
// paintLine(gfx, tokenMarker, line, x);
// }
// protected void paintPlainLine(Graphics gfx, int line, Font defaultFont,
// Color defaultColor, int x, int y) {
protected
void
paintPlainLine
(
Graphics
gfx
,
int
line
,
int
x
,
int
y
) {
if
(!
printing
) {
paintHighlight
(
gfx
,
line
,
y
);
}
textArea
.
getLineText
(
line
,
currentLine
);
// gfx.setFont(plainFont);
// gfx.setFont(defaultFont);
// gfx.setColor(defaultColor);
y
+=
fm
.
getHeight
();
// doesn't respect fixed width like it should
// x = Utilities.drawTabbedText(currentLine, x, y, gfx, this, 0);
// int w = fm.charWidth(' ');
for
(
int
i
=
0
;
i
<
currentLine
.
count
;
i
++) {
gfx
.
drawChars
(
currentLine
.
array
,
currentLine
.
offset
+
i
,
1
,
x
,
y
);
x
=
currentLine
.
array
[
currentLine
.
offset
+
i
] ==
'\t'
? (
int
)
nextTabStop
(
x
,
i
) :
x
+
fm
.
charWidth
(
currentLine
.
array
[
currentLine
.
offset
+
i
]);
}
// Draw characters via input method.
if
(
compositionTextPainter
!=
null
&&
compositionTextPainter
.
hasComposedTextLayout
()) {
compositionTextPainter
.
draw
(
gfx
,
defaults
.
lineHighlightColor
);
}
if
(
defaults
.
eolMarkers
) {
gfx
.
setColor
(
defaults
.
eolMarkerColor
);
gfx
.
drawString
(
"."
,
x
,
y
);
}
}
// protected void paintSyntaxLine(Graphics gfx, TokenMarker tokenMarker,
// int line, Font defaultFont,
// Color defaultColor, int x, int y) {
protected
void
paintSyntaxLine
(
Graphics
gfx
,
int
line
,
int
x
,
int
y
,
TokenMarker
tokenMarker
) {
textArea
.
getLineText
(
currentLineIndex
,
currentLine
);
currentLineTokens
=
tokenMarker
.
markTokens
(
currentLine
,
currentLineIndex
);
// gfx.setFont(plainFont);
paintHighlight
(
gfx
,
line
,
y
);
// gfx.setFont(defaultFont);
// gfx.setColor(defaultColor);
y
+=
fm
.
getHeight
();
// x = paintSyntaxLine(currentLine,
// currentLineTokens,
// defaults.styles, this, gfx, x, y);
x
=
paintSyntaxLine
(
gfx
,
currentLine
,
x
,
y
,
currentLineTokens
,
defaults
.
styles
);
// Draw characters via input method.
if
(
compositionTextPainter
!=
null
&&
compositionTextPainter
.
hasComposedTextLayout
()) {
compositionTextPainter
.
draw
(
gfx
,
defaults
.
lineHighlightColor
);
}
if
(
defaults
.
eolMarkers
) {
gfx
.
setColor
(
defaults
.
eolMarkerColor
);
gfx
.
drawString
(
"."
,
x
,
y
);
}
}
/**
* Paints the specified line onto the graphics context. Note that this
* method munges the offset and count values of the segment.
* @param line The line segment
* @param tokens The token list for the line
* @param styles The syntax style list
* @param expander The tab expander used to determine tab stops. May
* be null
* @param gfx The graphics context
* @param x The x co-ordinate
* @param y The y co-ordinate
* @return The x co-ordinate, plus the width of the painted string
*/
// public int paintSyntaxLine(Segment line, Token tokens, SyntaxStyle[] styles,
// TabExpander expander, Graphics gfx,
// int x, int y) {
protected
int
paintSyntaxLine
(
Graphics
gfx
,
Segment
line
,
int
x
,
int
y
,
Token
tokens
,
SyntaxStyle
[]
styles
) {
// Font defaultFont = gfx.getFont();
// Color defaultColor = gfx.getColor();
// for (byte id = tokens.id; id != Token.END; tokens = tokens.next) {
for
(;;) {
byte
id
=
tokens
.
id
;
if
(
id
==
Token
.
END
)
break
;
int
length
=
tokens
.
length
;
if
(
id
==
Token
.
NULL
) {
// if(!defaultColor.equals(gfx.getColor()))
// gfx.setColor(defaultColor);
// if(!defaultFont.equals(gfx.getFont()))
// gfx.setFont(defaultFont);
gfx
.
setColor
(
defaults
.
fgcolor
);
gfx
.
setFont
(
plainFont
);
}
else
{
//styles[id].setGraphicsFlags(gfx,defaultFont);
SyntaxStyle
ss
=
styles
[
id
];
gfx
.
setColor
(
ss
.
getColor
());
gfx
.
setFont
(
ss
.
isBold
() ?
boldFont
:
plainFont
);
}
line
.
count
=
length
;
// huh? suspicious
// doesn't respect mono metrics, insists on spacing w/ fractional or something
// x = Utilities.drawTabbedText(line, x, y, gfx, this, 0);
// gfx.drawChars(line.array, line.offset, line.count, x, y);
// int w = fm.charWidth(' ');
for
(
int
i
=
0
;
i
<
line
.
count
;
i
++) {
gfx
.
drawChars
(
line
.
array
,
line
.
offset
+
i
,
1
,
x
,
y
);
x
=
line
.
array
[
line
.
offset
+
i
] ==
'\t'
? (
int
)
nextTabStop
(
x
,
i
) :
x
+
fm
.
charWidth
(
line
.
array
[
line
.
offset
+
i
]);
}
//x += fm.charsWidth(line.array, line.offset, line.count);
//x += fm.charWidth(' ') * line.count;
line
.
offset
+=
length
;
tokens
=
tokens
.
next
;
}
return
x
;
}
protected
void
paintHighlight
(
Graphics
gfx
,
int
line
,
int
y
) {
//, boolean printing) {
// if (!printing) {
if
(
line
>=
textArea
.
getSelectionStartLine
() &&
line
<=
textArea
.
getSelectionStopLine
()) {
paintLineHighlight
(
gfx
,
line
,
y
);
}
if
(
highlights
!=
null
) {
highlights
.
paintHighlight
(
gfx
,
line
,
y
);
}
if
(
defaults
.
bracketHighlight
&&
line
==
textArea
.
getBracketLine
()) {
paintBracketHighlight
(
gfx
,
line
,
y
);
}
if
(
line
==
textArea
.
getCaretLine
()) {
paintCaret
(
gfx
,
line
,
y
);
}
}
protected
void
paintLineHighlight
(
Graphics
gfx
,
int
line
,
int
y
) {
int
height
=
fm
.
getHeight
();
y
+=
fm
.
getLeading
() +
fm
.
getMaxDescent
();
int
selectionStart
=
textArea
.
getSelectionStart
();
int
selectionEnd
=
textArea
.
getSelectionStop
();
if
(
selectionStart
==
selectionEnd
) {
if
(
defaults
.
lineHighlight
) {
gfx
.
setColor
(
defaults
.
lineHighlightColor
);
gfx
.
fillRect
(
0
,
y
,
getWidth
(),
height
);
}
}
else
{
gfx
.
setColor
(
defaults
.
selectionColor
);
int
selectionStartLine
=
textArea
.
getSelectionStartLine
();
int
selectionEndLine
=
textArea
.
getSelectionStopLine
();
int
lineStart
=
textArea
.
getLineStartOffset
(
line
);
int
x1
,
x2
;
if
(
textArea
.
isSelectionRectangular
()) {
int
lineLen
=
textArea
.
getLineLength
(
line
);
x1
=
textArea
.
_offsetToX
(
line
,
Math
.
min
(
lineLen
,
selectionStart
-
textArea
.
getLineStartOffset
(
selectionStartLine
)));
x2
=
textArea
.
_offsetToX
(
line
,
Math
.
min
(
lineLen
,
selectionEnd
-
textArea
.
getLineStartOffset
(
selectionEndLine
)));
if
(
x1
==
x2
)
x2
++;
}
else
if
(
selectionStartLine
==
selectionEndLine
) {
x1
=
textArea
.
_offsetToX
(
line
,
selectionStart
-
lineStart
);
x2
=
textArea
.
_offsetToX
(
line
,
selectionEnd
-
lineStart
);
}
else
if
(
line
==
selectionStartLine
) {
x1
=
textArea
.
_offsetToX
(
line
,
selectionStart
-
lineStart
);
x2
=
getWidth
();
}
else
if
(
line
==
selectionEndLine
) {
//x1 = 0;
// hack from stendahl to avoid doing weird side selection thing
x1
=
textArea
.
_offsetToX
(
line
,
0
);
// attempt at getting the gutter too, but doesn't seem to work
//x1 = textArea._offsetToX(line, -textArea.getHorizontalOffset());
x2
=
textArea
.
_offsetToX
(
line
,
selectionEnd
-
lineStart
);
}
else
{
//x1 = 0;
// hack from stendahl to avoid doing weird side selection thing
x1
=
textArea
.
_offsetToX
(
line
,
0
);
// attempt at getting the gutter too, but doesn't seem to work
//x1 = textArea._offsetToX(line, -textArea.getHorizontalOffset());
x2
=
getWidth
();
}
// "inlined" min/max()
gfx
.
fillRect
(
x1
>
x2
?
x2
:
x1
,
y
,
x1
>
x2
?
(
x1
-
x2
) : (
x2
-
x1
),
height
);
}
}
protected
void
paintBracketHighlight
(
Graphics
gfx
,
int
line
,
int
y
) {
int
position
=
textArea
.
getBracketPosition
();
if
(
position
!= -
1
) {
y
+=
fm
.
getLeading
() +
fm
.
getMaxDescent
();
int
x
=
textArea
.
_offsetToX
(
line
,
position
);
gfx
.
setColor
(
defaults
.
bracketHighlightColor
);
// Hack!!! Since there is no fast way to get the character
// from the bracket matching routine, we use ( since all
// brackets probably have the same width anyway
gfx
.
drawRect
(
x
,
y
,
fm
.
charWidth
(
'('
) -
1
,
fm
.
getHeight
() -
1
);
}
}
protected
void
paintCaret
(
Graphics
gfx
,
int
line
,
int
y
) {
//System.out.println("painting caret " + line + " " + y);
if
(
textArea
.
isCaretVisible
()) {
//System.out.println("caret is visible");
int
offset
=
textArea
.
getCaretPosition
() -
textArea
.
getLineStartOffset
(
line
);
int
caretX
=
textArea
.
_offsetToX
(
line
,
offset
);
int
caretWidth
= ((
defaults
.
blockCaret
||
textArea
.
isOverwriteEnabled
()) ?
fm
.
charWidth
(
'w'
) :
1
);
y
+=
fm
.
getLeading
() +
fm
.
getMaxDescent
();
int
height
=
fm
.
getHeight
();
//System.out.println("caretX, width = " + caretX + " " + caretWidth);
gfx
.
setColor
(
defaults
.
caretColor
);
if
(
textArea
.
isOverwriteEnabled
()) {
gfx
.
fillRect
(
caretX
,
y
+
height
-
1
,
caretWidth
,
1
);
}
else
{
// some machines don't like the drawRect for the single
// pixel caret.. this caused a lot of hell because on that
// minority of machines, the caret wouldn't show up past
// the first column. the fix is to use drawLine() in
// those cases, as a workaround.
if
(
caretWidth
==
1
) {
gfx
.
drawLine
(
caretX
,
y
,
caretX
,
y
+
height
-
1
);
}
else
{
gfx
.
drawRect
(
caretX
,
y
,
caretWidth
-
1
,
height
-
1
);
}
//gfx.drawRect(caretX, y, caretWidth, height - 1);
}
}
}
public
int
getScrollWidth
() {
// https://github.com/processing/processing/issues/3591
return
super
.
getWidth
();
}
}
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