本文整理匯總了Java中java.text.Bidi類的典型用法代碼示例。如果您正苦於以下問題:Java Bidi類的具體用法?Java Bidi怎麽用?Java Bidi使用的例子?那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
Bidi類屬於java.text包,在下文中一共展示了Bidi類的7個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: makeTextLineOnRange
import java.text.Bidi; //導入依賴的package包/類
private TextLine makeTextLineOnRange(int startPos, int limitPos) {
int[] charsLtoV = null;
byte[] charLevels = null;
if (fBidi != null) {
Bidi lineBidi = fBidi.createLineBidi(startPos, limitPos);
charLevels = BidiUtils.getLevels(lineBidi);
int[] charsVtoL = BidiUtils.createVisualToLogicalMap(charLevels);
charsLtoV = BidiUtils.createInverseMap(charsVtoL);
}
TextLineComponent[] components = makeComponentsOnRange(startPos, limitPos);
return new TextLine(fFrc,
components,
fBaselineOffsets,
fChars,
startPos,
limitPos,
charsLtoV,
charLevels,
fIsDirectionLTR);
}
示例2: createLineFromText
import java.text.Bidi; //導入依賴的package包/類
/**
* Create a TextLine from the Font and character data over the
* range. The range is relative to both the StyledParagraph and the
* character array.
*/
public static TextLine createLineFromText(char[] chars,
StyledParagraph styledParagraph,
TextLabelFactory factory,
boolean isDirectionLTR,
float[] baselineOffsets) {
factory.setLineContext(0, chars.length);
Bidi lineBidi = factory.getLineBidi();
int[] charsLtoV = null;
byte[] levels = null;
if (lineBidi != null) {
levels = BidiUtils.getLevels(lineBidi);
int[] charsVtoL = BidiUtils.createVisualToLogicalMap(levels);
charsLtoV = BidiUtils.createInverseMap(charsVtoL);
}
TextLineComponent[] components =
getComponents(styledParagraph, chars, 0, chars.length, charsLtoV, levels, factory);
return new TextLine(factory.getFontRenderContext(), components, baselineOffsets,
chars, 0, chars.length, charsLtoV, levels, isDirectionLTR);
}
示例3: standardCreateTextLine
import java.text.Bidi; //導入依賴的package包/類
/**
* Create a TextLine from the text. chars is just the text in the iterator.
*/
public static TextLine standardCreateTextLine(FontRenderContext frc,
AttributedCharacterIterator text,
char[] chars,
float[] baselineOffsets) {
StyledParagraph styledParagraph = new StyledParagraph(text, chars);
Bidi bidi = new Bidi(text);
if (bidi.isLeftToRight()) {
bidi = null;
}
int layoutFlags = 0; // no extra info yet, bidi determines run and line direction
TextLabelFactory factory = new TextLabelFactory(frc, chars, bidi, layoutFlags);
boolean isDirectionLTR = true;
if (bidi != null) {
isDirectionLTR = bidi.baseIsLeftToRight();
}
return createLineFromText(chars, styledParagraph, factory, isDirectionLTR, baselineOffsets);
}
示例4: getLevels
import java.text.Bidi; //導入依賴的package包/類
/**
* Return the level of each character into the levels array starting at start.
* This is a convenience method for clients who prefer to use an explicit levels
* array instead of iterating over the runs.
*
* @param levels the array to receive the character levels
* @param start the starting offset into the the array
* @throws IndexOutOfBoundsException if <code>start</code> is less than 0 or
* <code>start + getLength()</code> is greater than <code>levels.length</code>.
*/
public static void getLevels(Bidi bidi, byte[] levels, int start) {
int limit = start + bidi.getLength();
if (start < 0 || limit > levels.length) {
throw new IndexOutOfBoundsException("levels.length = " + levels.length +
" start: " + start + " limit: " + limit);
}
int runCount = bidi.getRunCount();
int p = start;
for (int i = 0; i < runCount; ++i) {
int rlimit = start + bidi.getRunLimit(i);
byte rlevel = (byte)bidi.getRunLevel(i);
while (p < rlimit) {
levels[p++] = rlevel;
}
}
}
示例5: getLevels
import java.text.Bidi; //導入依賴的package包/類
/**
* Return the level of each character into the levels array starting at start.
* This is a convenience method for clients who prefer to use an explicit levels
* array instead of iterating over the runs.
*
* @param levels the array to receive the character levels
* @param start the starting offset into the array
* @throws IndexOutOfBoundsException if {@code start} is less than 0 or
* {@code start + getLength()} is greater than {@code levels.length}.
*/
public static void getLevels(Bidi bidi, byte[] levels, int start) {
int limit = start + bidi.getLength();
if (start < 0 || limit > levels.length) {
throw new IndexOutOfBoundsException("levels.length = " + levels.length +
" start: " + start + " limit: " + limit);
}
int runCount = bidi.getRunCount();
int p = start;
for (int i = 0; i < runCount; ++i) {
int rlimit = start + bidi.getRunLimit(i);
byte rlevel = (byte)bidi.getRunLevel(i);
while (p < rlimit) {
levels[p++] = rlevel;
}
}
}
示例6: isRTL
import java.text.Bidi; //導入依賴的package包/類
/**
* This method determines if the direction of a substring is right-to-left.
* If the string is empty that determination is based on the default system language
* Locale.getDefault().
* The method can handle invalid substring definitions (start > end etc.), in which case the
* method returns False.
*
* @return True if the text direction is right-to-left, false otherwise.
*/
public static boolean isRTL(CharSequence s, int start, int end) {
if (s == null || s.length() == 0) {
// empty string --> determine the direction from the default language
return isRTL(Locale.getDefault());
}
if (start == end) {
// if no character is selected we need to expand the selection
start = Math.max(0, --start);
if (start == end) {
end = Math.min(s.length(), ++end);
}
}
try {
Bidi bidi = new Bidi(s.subSequence(start, end).toString(), Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
return ! bidi.baseIsLeftToRight();
}
catch (IndexOutOfBoundsException e) {
return false;
}
}
示例7: makeTextLineOnRange
import java.text.Bidi; //導入依賴的package包/類
private TextLine makeTextLineOnRange(int startPos, int limitPos) {
int[] charsLtoV = null;
byte[] charLevels = null;
if (fBidi != null) {
Bidi lineBidi = fBidi.createLineBidi(startPos, limitPos);
charLevels = BidiUtils.getLevels(lineBidi);
int[] charsVtoL = BidiUtils.createVisualToLogicalMap(charLevels);
charsLtoV = BidiUtils.createInverseMap(charsVtoL);
}
TextLineComponent[] components = makeComponentsOnRange(startPos, limitPos);
return new TextLine(fFrc,
components,
fBaselineOffsets,
fChars,
startPos,
limitPos,
charsLtoV,
charLevels,
fIsDirectionLTR);
}