The text area repaint manager. More...

Inheritance diagram for net.sf.gridarta.textedit.textarea.TextAreaPainter:

Collaboration diagram for net.sf.gridarta.textedit.textarea.TextAreaPainter:

Public Member Functions
int	getCurrentLineIndex ()
	Returns the currently painted line. More...

List< Token >	getCurrentLineTokens ()
	Returns the tokens of the currently painted line. More...

int	getDefaultCharWidth ()
	This works only for fonts with fixed line height. More...

int	getDefaultLineHeight ()
	This works only for fonts with fixed line height. More...

int	getFirstLine ()
	Returns the line displayed at the text area's origin. More...

FontMetrics	getFontMetrics ()
	Returns the font metrics used by this component. More...

int	getHorizontalOffset ()
	Returns the horizontal offset of drawn lines. More...

Dimension	getMinimumSize ()

Dimension	getPreferredSize ()

SyntaxStyles	getStyles ()
	Returns the syntax styles used to paint colorized text. More...

int	getVisibleLines ()

void	invalidateLine (final int line)
	Marks a line as needing a repaint. More...

void	invalidateLineRange (final int firstLine, final int lastLine)
	Marks a range of lines as needing a repaint. More...

void	invalidateSelectedLines ()
	Repaints the lines containing the selection. More...

boolean	isBlockCaretEnabled ()
	Returns whether the caret should be drawn as a block. More...

boolean	isBracketHighlightEnabled ()
	Returns whether bracket highlighting is enabled. More...

int	lineToY (final int line)
	Converts a line index to a y co-ordinate. More...

float	nextTabStop (final float x, final int tabOffset)

int	offsetToX (final int line, final int offset)
	Converts an offset in a line into an x co-ordinate. More...

int	offsetToX2 (final int line, final int offset)
	Converts an offset in a line into an x co-ordinate. More...

void	paint (@NotNull final Graphics g)
	Repaints the text. More...

void	recalculateVisibleLines ()
	Recalculates the number of visible lines. More...

void	setCurrentLineIndex (final int lineIndex)
	Sets the currently painted line. More...

void	setCurrentLineTokens (@Nullable final List< Token > tokens)
	Sets the tokens of the currently painted line. More...

boolean	setFirstLine (final int firstLine)

final void	setFont (@NotNull final Font font)

boolean	setHorizontalOffset (final int horizontalOffset)

void	setStyles (@NotNull final SyntaxStyles styles)
	Sets the syntax styles used to paint colorized text. More...

	TextAreaPainter (@NotNull final JEditTextArea textArea, @NotNull final TextAreaSelection selection, @NotNull final TextAreaCaret caret, @NotNull final TextAreaDefaults defaults, @NotNull final TextAreaBrackets brackets, @NotNull final TextAreaConfig config, final boolean paintInvalid)
	Creates a new repaint manager. More...

int	xToOffset (final int line, final int x)
	Converts an x co-ordinate to an offset within a line. More...

int	xyToOffset (final int x, final int y)
	Converts a point to an offset, from the start of the text. More...

int	yToLine (final int y)
	Converts a y co-ordinate to a line index. More...

Private Member Functions
Dimension	newDimension (final int columns, final int rows)
	Returns a Dimension measured in default character sizes. More...

void	paintBracketHighlight (@NotNull final Graphics gfx, final int line, final int y)
	Paints the bracket highlight. More...

void	paintCaret (@NotNull final Graphics gfx, final int line, final int y)
	Paints the caret highlight. More...

void	paintHighlight (@NotNull final Graphics gfx, final int line, final int y)
	Adds highlights for a line: selections, custom highlights from client code, brackets, caret. More...

void	paintLine (@NotNull final Graphics gfx, @Nullable final TokenMarker tokenMarker, final int line, final int x)
	Paints one line. More...

void	paintLineHighlight (@NotNull final Graphics gfx, final int line, final int y)
	Paints the selection highlight. More...

void	paintPlainLine (@NotNull final Graphics gfx, final int line, @NotNull final Font defaultFont, @NotNull final Color defaultColor, final int x, final int y)
	Paint a line without token highlighting. More...

void	paintSyntaxLine (@NotNull final Graphics gfx, @NotNull final TokenMarker tokenMarker, final int line, @NotNull final Font defaultFont, @NotNull final Color defaultColor, final int x, final int y)
	Paint a line with token highlighting. More...

void	updateLineInfo ()
	Make sure defaultCharWidth and defaultLineHeight are up-to-date. More...

Private Attributes
final boolean	blockCaret
	Whether the caret should be wide even in insert mode. More...

final boolean	bracketHighlight
	Whether bracket highlighting is enabled. More...

final Color	bracketHighlightColor
	The color for bracket highlighting. More...

final TextAreaBrackets	brackets
	The brackets to paint. More...

final TextAreaCaret	caret

final Color	caretColor
	The caret color. More...

final int	cols
	The number of columns. More...

final TextAreaConfig	config
	The TextAreaConfig options to use. More...

final Segment	currentLine = new Segment()
	Holds the currently painted line. More...

int	currentLineIndex = -1
	The currently painted line. More...

List< Token >	currentLineTokens
	The tokens of the currently painted line. More...

int	defaultCharWidth
	The character width of defaultFont. More...

Font	defaultFont
	The Font from which defaultLineHeight and defaultCharWidth have been calculated. More...

int	defaultLineHeight
	The line height of defaultFont. More...

final Color	eolMarkerColor
	The color for painting eol markers. More...

final boolean	eolMarkers
	Whether end of line markers should be painted. More...

int	firstLine

FontMetrics	fontMetrics
	The font metrics for this instance. More...

final FontRenderContext	fontRenderContext = new FontRenderContext(null, false, false)
	The font render context for this instance. More...

int	horizontalOffset

final boolean	lineHighlight
	Whether line highlighting is enabled. More...

final Color	lineHighlightColor
	The color for line highlighting. More...

final Segment	lineSegment = new Segment()

final boolean	paintInvalid
	Whether invalid lines should be painted as red tildes. More...

final int	rows
	The number of rows. More...

final TextAreaSelection	selection

final Color	selectionColor
	The selection color. More...

SyntaxStyles	styles
	The syntax styles used to paint colorized text. More...

int	tabSize
	The tab size in pixels. More...

final JEditTextArea	textArea
	The associated text area that is painted. More...

int	visibleLines

Static Private Attributes
static final Category	LOG = Logger.getLogger(TextAreaPainter.class)
	The Logger for printing log messages. More...

static final long	serialVersionUID = 1L
	The serial version UID. More...

Detailed Description

The text area repaint manager.

It performs double buffering and paints lines of text.

Author: Slava Pestov; Andreas Vogl

Definition at line 42 of file TextAreaPainter.java.

Constructor & Destructor Documentation

◆ TextAreaPainter()

net.sf.gridarta.textedit.textarea.TextAreaPainter.TextAreaPainter	(	@NotNull final JEditTextArea	textArea,
		@NotNull final TextAreaSelection	selection,
		@NotNull final TextAreaCaret	caret,
		@NotNull final TextAreaDefaults	defaults,
		@NotNull final TextAreaBrackets	brackets,
		@NotNull final TextAreaConfig	config,
		final boolean	paintInvalid
	)

Creates a new repaint manager.

This should be not be called directly.

Parameters

textArea	the associated text area that is painted
defaults	the text attributes to use
brackets	the brackets to paint
config	the text area configuration options to use
paintInvalid	whether invalid lines should be painted as red tildes

Definition at line 233 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.brackets, net.sf.gridarta.textedit.textarea.TextAreaPainter.caret, net.sf.gridarta.textedit.textarea.TextAreaPainter.config, net.sf.gridarta.textedit.textarea.TextAreaPainter.getFontMetrics(), net.sf.gridarta.textedit.textarea.TextAreaPainter.paintInvalid, net.sf.gridarta.textedit.textarea.TextAreaPainter.selection, and net.sf.gridarta.textedit.textarea.TextAreaPainter.textArea.

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Member Function Documentation

◆ getCurrentLineIndex()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.getCurrentLineIndex ( )

Returns the currently painted line.

Returns: the line index

Definition at line 659 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.currentLineIndex.

◆ getCurrentLineTokens()

List<Token> net.sf.gridarta.textedit.textarea.TextAreaPainter.getCurrentLineTokens ( )

Returns the tokens of the currently painted line.

Returns: the tokens

Definition at line 676 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX2(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.xToOffset().

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◆ getDefaultCharWidth()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.getDefaultCharWidth ( )

This works only for fonts with fixed line height.

It's sort of hack to avoid the use of deprecated methods.

Returns: default line height in pixels

Definition at line 299 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.defaultCharWidth, and net.sf.gridarta.textedit.textarea.TextAreaPainter.updateLineInfo().

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.updateScrollBars().

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◆ getDefaultLineHeight()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.getDefaultLineHeight ( )

This works only for fonts with fixed line height.

It's sort of hack to avoid the use of deprecated methods.

Returns: default line height in pixels

Definition at line 289 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.defaultLineHeight, and net.sf.gridarta.textedit.textarea.TextAreaPainter.updateLineInfo().

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.recalculateVisibleLines().

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◆ getFirstLine()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.getFirstLine ( )

Returns the line displayed at the text area's origin.

Definition at line 714 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.firstLine.

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.documentChanged(), net.sf.gridarta.textedit.textarea.JEditTextArea.getFirstLine(), net.sf.gridarta.textedit.textarea.JEditTextArea.scrollTo(), and net.sf.gridarta.textedit.textarea.JEditTextArea.updateScrollBars().

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◆ getFontMetrics()

FontMetrics net.sf.gridarta.textedit.textarea.TextAreaPainter.getFontMetrics ( )

Returns the font metrics used by this component.

Returns: the font metrics

Definition at line 347 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.fontMetrics.

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.scrollTo(), net.sf.gridarta.textedit.textarea.TextAreaPainter.setFont(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.TextAreaPainter().

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◆ getHorizontalOffset()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.getHorizontalOffset ( )

Returns the horizontal offset of drawn lines.

Definition at line 738 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.horizontalOffset.

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.scrollTo(), and net.sf.gridarta.textedit.textarea.JEditTextArea.updateScrollBars().

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◆ getMinimumSize()

Dimension net.sf.gridarta.textedit.textarea.TextAreaPainter.getMinimumSize ( )

Definition at line 435 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.newDimension().

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◆ getPreferredSize()

Dimension net.sf.gridarta.textedit.textarea.TextAreaPainter.getPreferredSize ( )

Definition at line 428 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.newDimension().

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◆ getStyles()

SyntaxStyles net.sf.gridarta.textedit.textarea.TextAreaPainter.getStyles ( )

Returns the syntax styles used to paint colorized text.

Returns: the styles

See also: Token

Definition at line 310 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.styles.

◆ getVisibleLines()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.getVisibleLines ( )

Definition at line 707 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.visibleLines.

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.getVisibleLines().

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◆ invalidateLine()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.invalidateLine ( final int line )

Marks a line as needing a repaint.

Parameters

line	the line to invalidate

Definition at line 400 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.lineToY().

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.documentChanged(), and net.sf.gridarta.textedit.textarea.JEditTextArea.select().

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◆ invalidateLineRange()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.invalidateLineRange	(	final int	firstLine,
		final int	lastLine
	)

Marks a range of lines as needing a repaint.

Parameters

firstLine	the first line to invalidate
lastLine	the last line to invalidate

Definition at line 409 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.lineToY().

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.documentChanged(), net.sf.gridarta.textedit.textarea.TextAreaPainter.invalidateSelectedLines(), and net.sf.gridarta.textedit.textarea.JEditTextArea.select().

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◆ invalidateSelectedLines()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.invalidateSelectedLines ( )

Repaints the lines containing the selection.

Definition at line 416 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaSelection.getSelectionEndLine(), net.sf.gridarta.textedit.textarea.TextAreaSelection.getSelectionStartLine(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.invalidateLineRange().

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.blinkCaret(), net.sf.gridarta.textedit.textarea.JEditTextArea.setCaretVisible(), net.sf.gridarta.textedit.textarea.JEditTextArea.setOverwriteEnabled(), and net.sf.gridarta.textedit.textarea.JEditTextArea.setSelectionRectangular().

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◆ isBlockCaretEnabled()

boolean net.sf.gridarta.textedit.textarea.TextAreaPainter.isBlockCaretEnabled ( )

Returns whether the caret should be drawn as a block.

Returns: whether the caret should be drawn as a block

Definition at line 338 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.blockCaret.

◆ isBracketHighlightEnabled()

boolean net.sf.gridarta.textedit.textarea.TextAreaPainter.isBracketHighlightEnabled ( )

Returns whether bracket highlighting is enabled.

When bracket highlighting is enabled, the bracket matching the one before the caret (if any) is highlighted.

Returns: whether bracket highlighting is enabled

Definition at line 330 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.bracketHighlight.

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.select().

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◆ lineToY()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.lineToY ( final int line )

Converts a line index to a y co-ordinate.

Parameters

line the line

Definition at line 731 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.invalidateLine(), net.sf.gridarta.textedit.textarea.TextAreaPainter.invalidateLineRange(), net.sf.gridarta.textedit.textarea.JEditTextArea.lineToY(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.paintLine().

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◆ newDimension()

Dimension net.sf.gridarta.textedit.textarea.TextAreaPainter.newDimension	(	final int	columns,
		final int	rows
	)

private

Returns a Dimension measured in default character sizes.

Parameters

columns	the width in characters
rows	the height in rows

Returns: the dimension

Definition at line 447 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getMinimumSize(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.getPreferredSize().

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◆ nextTabStop()

float net.sf.gridarta.textedit.textarea.TextAreaPainter.nextTabStop	(	final float	x,
		final int	tabOffset
	)

Definition at line 421 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.tabSize.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.xToOffset().

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◆ offsetToX()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX	(	final int	line,
		final int	offset
	)

Converts an offset in a line into an x co-ordinate.

This is a slow version that can be used any time.

Parameters

line	the line
offset	the offset, from the start of the line

Definition at line 814 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX2(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.setCurrentLineTokens().

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.offsetToX().

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◆ offsetToX2()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX2	(	final int	line,
		final int	offset
	)

Converts an offset in a line into an x co-ordinate.

This is a fast version that should only be used if no changes were made to the text since the last repaint.

Parameters

line	the line
offset	the offset, from the start of the line

Definition at line 758 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX(), net.sf.gridarta.textedit.textarea.JEditTextArea.offsetToX2(), net.sf.gridarta.textedit.textarea.TextAreaPainter.paintBracketHighlight(), net.sf.gridarta.textedit.textarea.TextAreaPainter.paintCaret(), net.sf.gridarta.textedit.textarea.TextAreaPainter.paintLineHighlight(), and net.sf.gridarta.textedit.textarea.JEditTextArea.scrollTo().

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◆ paint()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.paint ( @NotNull final Graphics g )

Repaints the text.

Parameters

g	the graphics context

Definition at line 363 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaSelection.getDocument(), net.sf.gridarta.textedit.textarea.SyntaxDocument.getTokenMarker(), net.sf.gridarta.textedit.textarea.tokenmarker.TokenMarker.isNextLineRequested(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.paintLine().

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◆ paintBracketHighlight()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.paintBracketHighlight	(	@NotNull final Graphics	gfx,
		final int	line,
		final int	y
	)

private

Paints the bracket highlight.

Parameters

gfx	the graphics to paint to
line	the line index
y	the y-offset for painting

Definition at line 609 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaBrackets.getBracketPosition(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX2().

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.paintHighlight().

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◆ paintCaret()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.paintCaret	(	@NotNull final Graphics	gfx,
		final int	line,
		final int	y
	)

private

Paints the caret highlight.

Parameters

gfx	the graphics to paint to
line	the line index
y	the y-offset for painting

Definition at line 630 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaSelection.getCaretPosition(), net.sf.gridarta.textedit.textarea.TextAreaSelection.getLineStartOffset(), net.sf.gridarta.textedit.textarea.TextAreaCaret.isCaretVisible(), net.sf.gridarta.textedit.textarea.TextAreaConfig.isOverwrite(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX2().

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.paintHighlight().

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◆ paintHighlight()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.paintHighlight	(	@NotNull final Graphics	gfx,
		final int	line,
		final int	y
	)

private

Adds highlights for a line: selections, custom highlights from client code, brackets, caret.

Parameters

gfx	the graphics to paint to
line	the line index
y	the y-offset for painting

Definition at line 538 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaBrackets.getBracketLine(), net.sf.gridarta.textedit.textarea.TextAreaSelection.getCaretLine(), net.sf.gridarta.textedit.textarea.TextAreaSelection.getSelectionEndLine(), net.sf.gridarta.textedit.textarea.TextAreaSelection.getSelectionStartLine(), net.sf.gridarta.textedit.textarea.TextAreaPainter.paintBracketHighlight(), net.sf.gridarta.textedit.textarea.TextAreaPainter.paintCaret(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.paintLineHighlight().

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.paintLine(), net.sf.gridarta.textedit.textarea.TextAreaPainter.paintPlainLine(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.paintSyntaxLine().

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◆ paintLine()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.paintLine	(	@NotNull final Graphics	gfx,
		@Nullable final TokenMarker	tokenMarker,
		final int	line,
		final int	x
	)

private

Paints one line.

Parameters

gfx	the graphics to paint to
tokenMarker	the token marker to use
line	the line index
x	the x-offset for painting

Definition at line 458 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.paint().

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◆ paintLineHighlight()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.paintLineHighlight	(	@NotNull final Graphics	gfx,
		final int	line,
		final int	y
	)

private

Paints the selection highlight.

Parameters

gfx	the graphics to paint to
line	the line index
y	the y-offset for painting

Definition at line 558 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.paintHighlight().

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◆ paintPlainLine()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.paintPlainLine	(	@NotNull final Graphics	gfx,
		final int	line,
		@NotNull final Font	defaultFont,
		@NotNull final Color	defaultColor,
		final int	x,
		final int	y
	)

private

Paint a line without token highlighting.

Parameters

gfx	the graphics to paint to
line	the line index
defaultFont	the font to use
defaultColor	the color to use
x	the x-offset for painting
y	the y-offset for painting

Definition at line 487 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaSelection.getLineText(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.paintHighlight().

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.paintLine().

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◆ paintSyntaxLine()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.paintSyntaxLine	(	@NotNull final Graphics	gfx,
		@NotNull final TokenMarker	tokenMarker,
		final int	line,
		@NotNull final Font	defaultFont,
		@NotNull final Color	defaultColor,
		final int	x,
		final int	y
	)

private

Paint a line with token highlighting.

Parameters

gfx	the graphics to paint to
tokenMarker	the token marker to use
line	the line index
defaultFont	the font to use
defaultColor	the color to use
x	the x-offset for painting
y	the y-offset for painting

Definition at line 513 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaSelection.getLineText(), net.sf.gridarta.textedit.textarea.TextAreaPainter.paintHighlight(), and net.sf.gridarta.textedit.textarea.SyntaxUtilities.paintSyntaxLine().

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.paintLine().

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◆ recalculateVisibleLines()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.recalculateVisibleLines ( )

Recalculates the number of visible lines.

This should not be called directly.

Definition at line 692 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.getDefaultLineHeight(), and net.sf.gridarta.textedit.textarea.JEditTextArea.updateScrollBars().

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.ComponentHandler.componentResized(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.setFont().

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◆ setCurrentLineIndex()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.setCurrentLineIndex ( final int lineIndex )

Sets the currently painted line.

Parameters

lineIndex the line index

Definition at line 667 of file TextAreaPainter.java.

◆ setCurrentLineTokens()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.setCurrentLineTokens ( @Nullable final List< Token > tokens )

Sets the tokens of the currently painted line.

Parameters

tokens the tokens

Definition at line 684 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX(), net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX2(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.xToOffset().

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◆ setFirstLine()

boolean net.sf.gridarta.textedit.textarea.TextAreaPainter.setFirstLine ( final int firstLine )

Definition at line 718 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.firstLine.

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.setFirstLine(), and net.sf.gridarta.textedit.textarea.JEditTextArea.setOrigin().

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◆ setFont()

final void net.sf.gridarta.textedit.textarea.TextAreaPainter.setFont ( @NotNull final Font font )

Definition at line 352 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.getFontMetrics(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.recalculateVisibleLines().

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.setFont().

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◆ setHorizontalOffset()

boolean net.sf.gridarta.textedit.textarea.TextAreaPainter.setHorizontalOffset ( final int horizontalOffset )

Definition at line 742 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.horizontalOffset.

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.setHorizontalOffset(), and net.sf.gridarta.textedit.textarea.JEditTextArea.setOrigin().

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◆ setStyles()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.setStyles ( @NotNull final SyntaxStyles styles )

Sets the syntax styles used to paint colorized text.

Parameters

styles the syntax styles

See also: Token

Definition at line 319 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.styles.

◆ updateLineInfo()

void net.sf.gridarta.textedit.textarea.TextAreaPainter.updateLineInfo ( )

private

Make sure defaultCharWidth and defaultLineHeight are up-to-date.

Definition at line 273 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getDefaultCharWidth(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.getDefaultLineHeight().

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◆ xToOffset()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.xToOffset	(	final int	line,
		final int	x
	)

Converts an x co-ordinate to an offset within a line.

Parameters

line	the line
x	the x co-ordinate

Definition at line 835 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.xToOffset(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.xyToOffset().

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◆ xyToOffset()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.xyToOffset	(	final int	x,
		final int	y
	)

Converts a point to an offset, from the start of the text.

Parameters

x	the x co-ordinate of the point
y	the y co-ordinate of the point

Definition at line 928 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaSelection.getLineStartOffset(), net.sf.gridarta.textedit.textarea.TextAreaPainter.xToOffset(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.yToLine().

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.DragHandler.mouseDragged().

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◆ yToLine()

int net.sf.gridarta.textedit.textarea.TextAreaPainter.yToLine ( final int y )

Converts a y co-ordinate to a line index.

Parameters

y	the y co-ordinate

Definition at line 824 of file TextAreaPainter.java.

References net.sf.gridarta.textedit.textarea.TextAreaPainter.firstLine, net.sf.gridarta.textedit.textarea.TextAreaPainter.fontMetrics, and net.sf.gridarta.textedit.textarea.TextAreaSelection.getLineCount().

Referenced by net.sf.gridarta.textedit.textarea.JEditTextArea.MouseHandler.mousePressed(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.xyToOffset().

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Member Data Documentation

◆ blockCaret

final boolean net.sf.gridarta.textedit.textarea.TextAreaPainter.blockCaret

private

Whether the caret should be wide even in insert mode.

Definition at line 87 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.isBlockCaretEnabled().

◆ bracketHighlight

final boolean net.sf.gridarta.textedit.textarea.TextAreaPainter.bracketHighlight

private

Whether bracket highlighting is enabled.

Definition at line 140 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.isBracketHighlightEnabled().

◆ bracketHighlightColor

final Color net.sf.gridarta.textedit.textarea.TextAreaPainter.bracketHighlightColor

private

The color for bracket highlighting.

Definition at line 134 of file TextAreaPainter.java.

◆ brackets

final TextAreaBrackets net.sf.gridarta.textedit.textarea.TextAreaPainter.brackets

private

The brackets to paint.

Definition at line 75 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.TextAreaPainter().

◆ caret

final TextAreaCaret net.sf.gridarta.textedit.textarea.TextAreaPainter.caret

private

Definition at line 69 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.TextAreaPainter().

◆ caretColor

final Color net.sf.gridarta.textedit.textarea.TextAreaPainter.caretColor

private

The caret color.

Definition at line 110 of file TextAreaPainter.java.

◆ cols

final int net.sf.gridarta.textedit.textarea.TextAreaPainter.cols

private

The number of columns.

Use to calculate the component's width.

Definition at line 98 of file TextAreaPainter.java.

◆ config

final TextAreaConfig net.sf.gridarta.textedit.textarea.TextAreaPainter.config

private

The TextAreaConfig options to use.

Definition at line 81 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.TextAreaPainter().

◆ currentLine

final Segment net.sf.gridarta.textedit.textarea.TextAreaPainter.currentLine = new Segment()

private

Holds the currently painted line.

Definition at line 177 of file TextAreaPainter.java.

◆ currentLineIndex

int net.sf.gridarta.textedit.textarea.TextAreaPainter.currentLineIndex = -1

private

The currently painted line.

Definition at line 165 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getCurrentLineIndex().

◆ currentLineTokens

List<Token> net.sf.gridarta.textedit.textarea.TextAreaPainter.currentLineTokens

private

The tokens of the currently painted line.

Definition at line 171 of file TextAreaPainter.java.

◆ defaultCharWidth

int net.sf.gridarta.textedit.textarea.TextAreaPainter.defaultCharWidth

private

The character width of defaultFont.

Unset if

defaultCharWidth==null

.

Definition at line 213 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getDefaultCharWidth().

◆ defaultFont

Font net.sf.gridarta.textedit.textarea.TextAreaPainter.defaultFont

private

The Font from which defaultLineHeight and defaultCharWidth have been calculated.

Set to

null

it not yet calculated.

Definition at line 199 of file TextAreaPainter.java.

◆ defaultLineHeight

int net.sf.gridarta.textedit.textarea.TextAreaPainter.defaultLineHeight

private

The line height of defaultFont.

Unset if

defaultFont==null

.

Definition at line 206 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getDefaultLineHeight().

◆ eolMarkerColor

final Color net.sf.gridarta.textedit.textarea.TextAreaPainter.eolMarkerColor

private

The color for painting eol markers.

Definition at line 153 of file TextAreaPainter.java.

◆ eolMarkers

final boolean net.sf.gridarta.textedit.textarea.TextAreaPainter.eolMarkers

private

Whether end of line markers should be painted.

Definition at line 159 of file TextAreaPainter.java.

◆ firstLine

int net.sf.gridarta.textedit.textarea.TextAreaPainter.firstLine

private

Definition at line 217 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getFirstLine(), net.sf.gridarta.textedit.textarea.TextAreaPainter.setFirstLine(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.yToLine().

◆ fontMetrics

FontMetrics net.sf.gridarta.textedit.textarea.TextAreaPainter.fontMetrics

private

The font metrics for this instance.

Definition at line 190 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getFontMetrics(), net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX2(), net.sf.gridarta.textedit.textarea.TextAreaPainter.xToOffset(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.yToLine().

◆ fontRenderContext

final FontRenderContext net.sf.gridarta.textedit.textarea.TextAreaPainter.fontRenderContext = new FontRenderContext(null, false, false)

private

The font render context for this instance.

Definition at line 57 of file TextAreaPainter.java.

◆ horizontalOffset

int net.sf.gridarta.textedit.textarea.TextAreaPainter.horizontalOffset

private

Definition at line 219 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getHorizontalOffset(), net.sf.gridarta.textedit.textarea.TextAreaPainter.offsetToX2(), net.sf.gridarta.textedit.textarea.TextAreaPainter.setHorizontalOffset(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.xToOffset().

◆ lineHighlight

final boolean net.sf.gridarta.textedit.textarea.TextAreaPainter.lineHighlight

private

Whether line highlighting is enabled.

Definition at line 128 of file TextAreaPainter.java.

◆ lineHighlightColor

final Color net.sf.gridarta.textedit.textarea.TextAreaPainter.lineHighlightColor

private

The color for line highlighting.

Definition at line 122 of file TextAreaPainter.java.

◆ lineSegment

final Segment net.sf.gridarta.textedit.textarea.TextAreaPainter.lineSegment = new Segment()

private

Definition at line 222 of file TextAreaPainter.java.

◆ LOG

final Category net.sf.gridarta.textedit.textarea.TextAreaPainter.LOG = Logger.getLogger(TextAreaPainter.class)

staticprivate

The Logger for printing log messages.

Definition at line 47 of file TextAreaPainter.java.

◆ paintInvalid

final boolean net.sf.gridarta.textedit.textarea.TextAreaPainter.paintInvalid

private

Whether invalid lines should be painted as red tildes.

Definition at line 146 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.TextAreaPainter().

◆ rows

final int net.sf.gridarta.textedit.textarea.TextAreaPainter.rows

private

The number of rows.

Use to calculate the component's height.

Definition at line 104 of file TextAreaPainter.java.

◆ selection

final TextAreaSelection net.sf.gridarta.textedit.textarea.TextAreaPainter.selection

private

Definition at line 66 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.TextAreaPainter().

◆ selectionColor

final Color net.sf.gridarta.textedit.textarea.TextAreaPainter.selectionColor

private

The selection color.

Definition at line 116 of file TextAreaPainter.java.

◆ serialVersionUID

final long net.sf.gridarta.textedit.textarea.TextAreaPainter.serialVersionUID = 1L

staticprivate

The serial version UID.

Definition at line 52 of file TextAreaPainter.java.

◆ styles

SyntaxStyles net.sf.gridarta.textedit.textarea.TextAreaPainter.styles

private

The syntax styles used to paint colorized text.

Definition at line 92 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getStyles(), and net.sf.gridarta.textedit.textarea.TextAreaPainter.setStyles().

◆ tabSize

int net.sf.gridarta.textedit.textarea.TextAreaPainter.tabSize

private

The tab size in pixels.

Definition at line 183 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.nextTabStop().

◆ textArea

final JEditTextArea net.sf.gridarta.textedit.textarea.TextAreaPainter.textArea

private

The associated text area that is painted.

Definition at line 63 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.TextAreaPainter().

◆ visibleLines

int net.sf.gridarta.textedit.textarea.TextAreaPainter.visibleLines

private

Definition at line 215 of file TextAreaPainter.java.

Referenced by net.sf.gridarta.textedit.textarea.TextAreaPainter.getVisibleLines().

The documentation for this class was generated from the following file:

gridarta-gridarta/src/textedit/src/main/java/net/sf/gridarta/textedit/textarea/TextAreaPainter.java

Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ TextAreaPainter()

Member Function Documentation

◆ getCurrentLineIndex()

◆ getCurrentLineTokens()

◆ getDefaultCharWidth()

◆ getDefaultLineHeight()

◆ getFirstLine()

◆ getFontMetrics()

◆ getHorizontalOffset()

◆ getMinimumSize()

◆ getPreferredSize()

◆ getStyles()

◆ getVisibleLines()

◆ invalidateLine()

◆ invalidateLineRange()

◆ invalidateSelectedLines()

◆ isBlockCaretEnabled()

◆ isBracketHighlightEnabled()

◆ lineToY()

◆ newDimension()

◆ nextTabStop()

◆ offsetToX()

◆ offsetToX2()

◆ paint()

◆ paintBracketHighlight()

◆ paintCaret()

◆ paintHighlight()

◆ paintLine()

◆ paintLineHighlight()

◆ paintPlainLine()

◆ paintSyntaxLine()

◆ recalculateVisibleLines()

◆ setCurrentLineIndex()

◆ setCurrentLineTokens()

◆ setFirstLine()

◆ setFont()

◆ setHorizontalOffset()

◆ setStyles()

◆ updateLineInfo()

◆ xToOffset()

◆ xyToOffset()

◆ yToLine()

Member Data Documentation

◆ blockCaret

◆ bracketHighlight

◆ bracketHighlightColor

◆ brackets

◆ caret

◆ caretColor

◆ cols

◆ config

◆ currentLine

◆ currentLineIndex

◆ currentLineTokens

◆ defaultCharWidth

◆ defaultFont

◆ defaultLineHeight

◆ eolMarkerColor

◆ eolMarkers

◆ firstLine

◆ fontMetrics

◆ fontRenderContext

◆ horizontalOffset

◆ lineHighlight

◆ lineHighlightColor

◆ lineSegment

◆ LOG

◆ paintInvalid

◆ rows

◆ selection

◆ selectionColor

◆ serialVersionUID

◆ styles

◆ tabSize