jp.kyasu.graphics

クラス EchoTextScanner

java.lang.Object

jp.kyasu.graphics.TextScanner

jp.kyasu.graphics.EchoTextScanner

public class EchoTextScanner
extends TextScanner

The EchoTextScanner class scans text to lay out text, to draw text, and to compute the position of text. Each character in the text is treated as the specified echo character. The EchoTextScanner class is useful when the user input shouldn't be echoed to the screen, as in the case of a password field.

フィールドのサマリー

フィールド

修飾子とタイプ	フィールドと説明
protected char[]	echoChars The array of echo characters.
protected int	echoCharWidth The width of a echo character.

クラスから継承されたフィールド jp.kyasu.graphics.TextScanner

ATTACHMENT, attachments, baseline, CHAR_NOT_IN_FONT, CROSSED_X, destX, END_OF_RUN, IGNORE, JAVA_BREAK_STOPS, JAVA_STOPS, lastCondition, lastIndex, leftMargin, LINE_BREAK, LINE_SEPARATOR, lineBegin, lineEnd, lineHeight, lineWrap, LIST_STOPS, locale, metrics, NO_STOPS, notInFontChar, notInFontCharString, notInFontCharWidth, richTextStyle, rightMargin, runEnd, SIMPLE_STOPS, TAB, tabWidth, text, widths

コンストラクタのサマリー

コンストラクタ

コンストラクタと説明
EchoTextScanner(RichText richText, int lineWrap, char echoChar, java.util.Locale locale) Constructs a echo text scanner with the rich text to be scanned, the line wrapping style, the echo character, and the locale of the text.
EchoTextScanner(Text text, RichTextStyle richTextStyle, int lineWrap, char echoChar, java.util.Locale locale) Constructs a echo text scanner with the text to be scanned, the rich text style, the line wrapping style, the echo character, and the locale of the text.

メソッドのサマリー

修飾子とタイプ	メソッドと説明
int	charWidth(char ch) Returns the advance width of the specified character in the text.
int	charWidthAt(int textIndex, int startX, int layoutWidth, TextLineInfo lineInfo, ParagraphStyle pStyle) Returns the advance width of a character in the specified index of text with the specified scanning context.
protected int	doDrawLineStop(int stop, java.awt.Graphics g, java.awt.Point offset, int drawY, int rStart, int rEnd, TextStyle tStyle) Handles the stop condition for drawing a line.
protected int	doLayoutLineStop(int stop) Handles the stop condition for breaking text into a line.
protected int	doTextPositionStop(int stop) Handles the stop condition for computing a position of character.
void	drawLineFromTo(java.awt.Graphics g, java.awt.Point offset, int startX, int beginIndex, int endIndex, int lineHeight, int baseline, int leftMgn, int tabW, int[] stops) Draws a line from the beginning index to the ending index of text.
protected int	scanChars(int begin, int end, char[] chars, int rightX, int[] stops) Scans the array of characters and returns the stop condition if the scanning runs to the end, the scanning runs across the rightX, or the scanning encounters the stop condition defined in the stops.
protected void	setFontMetrics(java.awt.FontMetrics metrics) Sets the font metrics.

クラスから継承されたメソッド jp.kyasu.graphics.TextScanner

charWidth, doLayoutLine, doLayoutLine, doLayoutLine, doLayoutLine, drawLine, drawLineFromTo, drawLineFromTo, drawLineFromTo, drawLineTo, drawLineTo, fastScanChars, fastScanCharsForMultiBytes, getStops, linePositionAt, linePositionAt, linePositionAt, linePositionAt, nextTab, prevTab, setLineWrap, setNotInFontChar, slowScanChars

クラスから継承されたメソッド java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

フィールドの詳細

echoChars

protected char[] echoChars

The array of echo characters.

echoCharWidth

protected int echoCharWidth

The width of a echo character.

コンストラクタの詳細

EchoTextScanner

public EchoTextScanner(RichText richText,
                       int lineWrap,
                       char echoChar,
                       java.util.Locale locale)

Constructs a echo text scanner with the rich text to be scanned, the line wrapping style, the echo character, and the locale of the text.

パラメータ:

richText - the rich text to be scanned.

lineWrap - the line wrapping style.

echoChar - the echo character.

locale - the locale of the text.

EchoTextScanner

public EchoTextScanner(Text text,
                       RichTextStyle richTextStyle,
                       int lineWrap,
                       char echoChar,
                       java.util.Locale locale)

Constructs a echo text scanner with the text to be scanned, the rich text style, the line wrapping style, the echo character, and the locale of the text.

パラメータ:

text - the text to be scanned.

richTextStyle - the rich text style.

lineWrap - the line wrapping style.

echoChar - the echo character.

locale - the locale of the text.

メソッドの詳細

drawLineFromTo

public void drawLineFromTo(java.awt.Graphics g,
                           java.awt.Point offset,
                           int startX,
                           int beginIndex,
                           int endIndex,
                           int lineHeight,
                           int baseline,
                           int leftMgn,
                           int tabW,
                           int[] stops)

Draws a line from the beginning index to the ending index of text.

オーバーライド:

drawLineFromTo クラス内 TextScanner

パラメータ:

g - the graphics.

offset - the offset position to draw.

startX - the starting x position to draw.

beginIndex - the beginning index of text to draw. (inclusive)

endIndex - the ending index of text to draw. (exclusive)

lineHeight - the height of a line.

baseline - the baseline of a line.

leftMgn - the left margin of a line.

tabW - the tab width used to scan.

stops - the stop conditions for scanning.

charWidth

public int charWidth(char ch)

Returns the advance width of the specified character in the text.

オーバーライド:

charWidth クラス内 TextScanner

パラメータ:

ch - the character to be measured.

戻り値:

the advance width of the specified character.

charWidthAt

public int charWidthAt(int textIndex,
                       int startX,
                       int layoutWidth,
                       TextLineInfo lineInfo,
                       ParagraphStyle pStyle)

Returns the advance width of a character in the specified index of text with the specified scanning context.

オーバーライド:

charWidthAt クラス内 TextScanner

パラメータ:

textIndex - the index of a character to be measured.

startX - the starting x position to scan.

layoutWidth - the composition width.

lineInfo - the information of a line where a character is in.

pStyle - the paragraph style of a line.

戻り値:

the advance width of the specified character.

doLayoutLineStop

protected int doLayoutLineStop(int stop)

Handles the stop condition for breaking text into a line.

オーバーライド:

doLayoutLineStop クラス内 TextScanner

パラメータ:

stop - the stop condition.

戻り値:

-1 if the scanning runs to the end; 1 if the scanning runs across the right edge.

doDrawLineStop

protected int doDrawLineStop(int stop,
                             java.awt.Graphics g,
                             java.awt.Point offset,
                             int drawY,
                             int rStart,
                             int rEnd,
                             TextStyle tStyle)

Handles the stop condition for drawing a line.

オーバーライド:

doDrawLineStop クラス内 TextScanner

パラメータ:

stop - the stop condition.

g - the graphics.

offset - the offset position to draw.

drawY - the current y position.

rStart - the run start index.

rEnd - the run end index.

tStyle - the current text style.

戻り値:

-1 if the scanning runs to the end.

doTextPositionStop

protected int doTextPositionStop(int stop)

Handles the stop condition for computing a position of character.

オーバーライド:

doTextPositionStop クラス内 TextScanner

パラメータ:

stop - the stop condition.

戻り値:

-1 if the scanning runs to the end; 1 if the scanning runs across the right edge or the scanning encounters a line separator or a line break.

scanChars

protected int scanChars(int begin,
                        int end,
                        char[] chars,
                        int rightX,
                        int[] stops)

Scans the array of characters and returns the stop condition if the scanning runs to the end, the scanning runs across the rightX, or the scanning encounters the stop condition defined in the stops.

オーバーライド:

scanChars クラス内 TextScanner

パラメータ:

begin - the beginning index of scanning. (inclusive)

end - the ending index of scanning. (exclusive)

chars - the array of characters to be scanned.

rightX - the right edge for scanning.

stops - the stop conditions for scanning.

戻り値:

the stop condition.

setFontMetrics

protected void setFontMetrics(java.awt.FontMetrics metrics)

Sets the font metrics.

オーバーライド:

setFontMetrics クラス内 TextScanner

パラメータ:

metrics - the font metrics.