本文整理汇总了Java中javax.swing.text.Element.getElementIndex方法的典型用法代码示例。如果您正苦于以下问题:Java Element.getElementIndex方法的具体用法?Java Element.getElementIndex怎么用?Java Element.getElementIndex使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javax.swing.text.Element
的用法示例。
在下文中一共展示了Element.getElementIndex方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: insertUpdate
import javax.swing.text.Element; //导入方法依赖的package包/类
@Override
public void insertUpdate(DocumentEvent e) {
// Adding text containing a newline to the visible line of a folded
// Fold causes that Fold to unfold. Check only start offset of
// insertion since that's the line that was "modified".
int startOffs = e.getOffset();
int endOffs = startOffs + e.getLength();
Document doc = e.getDocument();
Element root = doc.getDefaultRootElement();
int startLine = root.getElementIndex(startOffs);
int endLine = root.getElementIndex(endOffs);
if (startLine!=endLine) { // Inserted text covering > 1 line...
Fold fold = getFoldForLine(startLine);
if (fold!=null && fold.isCollapsed()) {
fold.toggleCollapsedState();
}
}
}
示例2: actionPerformed
import javax.swing.text.Element; //导入方法依赖的package包/类
/** The operation to perform when this action is triggered. */
public void actionPerformed(ActionEvent e) {
JTextComponent target = getTextComponent(e);
if (target != null) {
Document doc = target.getDocument();
Element map = doc.getDefaultRootElement();
int offs = target.getCaretPosition();
int lineIndex = map.getElementIndex(offs);
int lineEnd = map.getElement(lineIndex).getEndOffset() - 1;
if (select) {
target.moveCaretPosition(lineEnd);
} else {
target.setCaretPosition(lineEnd);
}
}
}
示例3: actionPerformedImpl
import javax.swing.text.Element; //导入方法依赖的package包/类
@Override
public void actionPerformedImpl(ActionEvent e, RTextArea textArea) {
try {
// We use the elements instead of calling getLineOfOffset(),
// etc. to speed things up just a tad (i.e. micro-optimize).
Document document = textArea.getDocument();
int caretPosition = textArea.getCaretPosition();
Element map = document.getDefaultRootElement();
int currentLineNum = map.getElementIndex(caretPosition);
Element currentLineElement = map.getElement(currentLineNum);
// Always take -1 as we don't want to remove the newline.
int currentLineEnd = currentLineElement.getEndOffset()-1;
if (caretPosition<currentLineEnd) {
document.remove(caretPosition,
currentLineEnd-caretPosition);
}
} catch (BadLocationException ble) {
ble.printStackTrace();
}
}
示例4: getWordEnd
import javax.swing.text.Element; //导入方法依赖的package包/类
@Override
protected int getWordEnd(RTextArea textArea, int offs)
throws BadLocationException {
RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
Element root = doc.getDefaultRootElement();
int line = root.getElementIndex(offs);
Element elem = root.getElement(line);
int end = elem.getEndOffset() - 1;
int wordEnd = offs;
while (wordEnd <= end) {
if (!isIdentifierChar(doc.charAt(wordEnd))) {
break;
}
wordEnd++;
}
return wordEnd;
}
示例5: appendOffset
import javax.swing.text.Element; //导入方法依赖的package包/类
/**
* Get string representation of an offset for debugging purposes
* in form "offset[line:column]". Both lines and columns start counting from 1
* like in the editor's status bar. Tabs are expanded when counting the column.
*
* @param sb valid string builder to which text will be appended or null in which case
* the method itself will create a string builder and it will return it.
* @param doc non-null document in which the offset is located.
* @param offset offset in the document.
* @return non-null string builder to which the description was added.
* @since 1.27
*/
public static StringBuilder appendOffset(StringBuilder sb, Document doc, int offset) {
if (sb == null) {
sb = new StringBuilder(50);
}
sb.append(offset).append('[');
if (offset < 0) { // Offset too low
sb.append("<0");
} else if (offset > doc.getLength() + 1) { // +1 for AbstractDocument-based docs
sb.append(">").append(doc.getLength());
} else { // Valid offset
Element paragraphRoot = getParagraphRootElement(doc);
int lineIndex = paragraphRoot.getElementIndex(offset);
Element lineElem = paragraphRoot.getElement(lineIndex);
sb.append(lineIndex + 1).append(':'); // Line
sb.append(visualColumn(doc, lineElem.getStartOffset(), offset) + 1); // Column
}
sb.append(']');
return sb;
}
示例6: reindent
import javax.swing.text.Element; //导入方法依赖的package包/类
public void reindent() throws BadLocationException {
Document doc = context.document();
int startOffset = context.startOffset();
int endOffset = context.endOffset();
pushFormattingContextDocument(doc);
try {
// Original formatter does not have reindentation of multiple lines
// so reformat start line and continue for each line.
Element lineRootElem = lineRootElement(doc);
Position endPos = doc.createPosition(endOffset);
do {
startOffset = formatter.indentLine(doc, startOffset);
int startLineIndex = lineRootElem.getElementIndex(startOffset) + 1;
if (startLineIndex >= lineRootElem.getElementCount())
break;
Element lineElem = lineRootElem.getElement(startLineIndex);
startOffset = lineElem.getStartOffset(); // Move to next line
} while (startOffset < endPos.getOffset());
} finally {
popFormattingContextDocument(doc);
}
}
示例7: getTextLineNumber
import javax.swing.text.Element; //导入方法依赖的package包/类
protected String getTextLineNumber(int rowStartOffset)
{
Element root = component.getDocument().getDefaultRootElement();
int index = root.getElementIndex( rowStartOffset );
Element line = root.getElement( index );
if (line.getStartOffset() == rowStartOffset)
return String.valueOf(index + 1);
else
return "";
}
示例8: getAlreadyEnteredText
import javax.swing.text.Element; //导入方法依赖的package包/类
/**
* Returns the text just before the current caret position that could be
* the start of something auto-completable.<p>
*
* This method returns all characters before the caret that are matched
* by {@link #isValidChar(char)}.
*
* {@inheritDoc}
*/
@Override
public String getAlreadyEnteredText(JTextComponent comp) {
Document doc = comp.getDocument();
int dot = comp.getCaretPosition();
Element root = doc.getDefaultRootElement();
int index = root.getElementIndex(dot);
Element elem = root.getElement(index);
int start = elem.getStartOffset();
int len = dot-start;
try {
doc.getText(start, len, seg);
} catch (BadLocationException ble) {
ble.printStackTrace();
return EMPTY_STRING;
}
int segEnd = seg.offset + len;
start = segEnd - 1;
while (start>=seg.offset && isValidChar(seg.array[start])) {
start--;
}
start++;
len = segEnd - start;
return len==0 ? EMPTY_STRING : new String(seg.array, start, len);
}
示例9: replace
import javax.swing.text.Element; //导入方法依赖的package包/类
public void replace(DocumentFilter.FilterBypass fb, int offset, int length,String text, AttributeSet attrs) throws BadLocationException {
Document doc = fb.getDocument();
Element root = doc.getDefaultRootElement();
int count = root.getElementCount();
int index = root.getElementIndex(offset);
Element cur = root.getElement(index);
int promptPosition = cur.getStartOffset()+PROMPT.length();
if(index==count-1 && offset-promptPosition>=0) {
if(text.equals("\n")) {
text = "\n"+PROMPT;
}
fb.replace(offset, length, text, attrs);
}
}
示例10: getCompletionsAt
import javax.swing.text.Element; //导入方法依赖的package包/类
/**
* {@inheritDoc}
*/
@Override
public List<Completion> getCompletionsAt(JTextComponent tc, Point p) {
int offset = tc.viewToModel(p);
if (offset<0 || offset>=tc.getDocument().getLength()) {
lastCompletionsAtText = null;
return lastParameterizedCompletionsAt = null;
}
Segment s = new Segment();
Document doc = tc.getDocument();
Element root = doc.getDefaultRootElement();
int line = root.getElementIndex(offset);
Element elem = root.getElement(line);
int start = elem.getStartOffset();
int end = elem.getEndOffset() - 1;
try {
doc.getText(start, end-start, s);
// Get the valid chars before the specified offset.
int startOffs = s.offset + (offset-start) - 1;
while (startOffs>=s.offset && isValidChar(s.array[startOffs])) {
startOffs--;
}
// Get the valid chars at and after the specified offset.
int endOffs = s.offset + (offset-start);
while (endOffs<s.offset+s.count && isValidChar(s.array[endOffs])) {
endOffs++;
}
int len = endOffs - startOffs - 1;
if (len<=0) {
return lastParameterizedCompletionsAt = null;
}
String text = new String(s.array, startOffs+1, len);
if (text.equals(lastCompletionsAtText)) {
return lastParameterizedCompletionsAt;
}
// Get a list of all Completions matching the text.
List<Completion> list = getCompletionByInputText(text);
lastCompletionsAtText = text;
return lastParameterizedCompletionsAt = list;
} catch (BadLocationException ble) {
ble.printStackTrace(); // Never happens
}
lastCompletionsAtText = null;
return lastParameterizedCompletionsAt = null;
}
示例11: paintView
import javax.swing.text.Element; //导入方法依赖的package包/类
/**
* Paints one view that corresponds to a line (or
* multiple lines if folding takes effect).
*/
private void paintView(View view, Graphics g, int yBase) {
JTextComponent component = editorUI.getComponent();
if (component == null) return;
BaseTextUI textUI = (BaseTextUI)component.getUI();
Element rootElem = textUI.getRootView(component).getElement();
int line = rootElem.getElementIndex(view.getStartOffset());
String annotation = ""; // NOI18N
AnnotateLine al = null;
if (!elementAnnotations.isEmpty()) {
al = getAnnotateLine(line);
if (al != null) {
annotation = getDisplayName(al); // NOI18N
}
} else {
annotation = elementAnnotationsSubstitute;
}
if (al != null && al.getRevision().equals(recentRevision)) {
g.setColor(selectedColor());
} else {
g.setColor(foregroundColor());
}
int texty = yBase + editorUI.getLineAscent();
int textx = 2;
g.drawString(annotation, textx, texty);
}
示例12: getWordStart
import javax.swing.text.Element; //导入方法依赖的package包/类
@Override
protected int getWordStart(RTextArea textArea, int offs)
throws BadLocationException {
RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
Element root = doc.getDefaultRootElement();
int line = root.getElementIndex(offs);
Element elem = root.getElement(line);
return getWordStartImpl(doc, elem, offs);
}
示例13: getLineCount
import javax.swing.text.Element; //导入方法依赖的package包/类
/** Count of rows between these two positions */
public static int getLineCount(@NonNull LineDocument doc, int startOffset, int endOffset) {
if (startOffset > endOffset) {
return 0;
}
Element lineRoot = doc.getParagraphElement(0).getParentElement();
return lineRoot.getElementIndex(endOffset) - lineRoot.getElementIndex(startOffset) + 1;
}
示例14: discoverTagName
import javax.swing.text.Element; //导入方法依赖的package包/类
/**
* Discovers the name of the tag being closed. Assumes standard
* SGML-style markup tags.
*
* @param doc The document to parse.
* @param dot The location of the caret. This should be right after
* the start of a closing tag token (e.g. "<code></</code>"
* or "<code>[</code>" in the case of BBCode).
* @return The name of the tag to close, or <code>null</code> if it
* could not be determined.
*/
private String discoverTagName(RSyntaxDocument doc, int dot) {
Stack<String> stack = new Stack<String>();
Element root = doc.getDefaultRootElement();
int curLine = root.getElementIndex(dot);
for (int i=0; i<=curLine; i++) {
Token t = doc.getTokenListForLine(i);
while (t!=null && t.isPaintable()) {
if (t.getType()==Token.MARKUP_TAG_DELIMITER) {
if (t.isSingleChar('<') || t.isSingleChar('[')) {
t = t.getNextToken();
while (t!=null && t.isPaintable()) {
if (t.getType()==Token.MARKUP_TAG_NAME ||
// Being lenient here and also checking
// for attributes, in case they
// (incorrectly) have whitespace between
// the '<' char and the element name.
t.getType()==Token.MARKUP_TAG_ATTRIBUTE) {
stack.push(t.getLexeme());
break;
}
t = t.getNextToken();
}
}
else if (t.length()==2 && t.charAt(0)=='/' &&
(t.charAt(1)=='>' ||
t.charAt(1)==']')) {
if (!stack.isEmpty()) { // Always true for valid XML
stack.pop();
}
}
else if (t.length()==2 &&
(t.charAt(0)=='<' || t.charAt(0)=='[') &&
t.charAt(1)=='/') {
String tagName = null;
if (!stack.isEmpty()) { // Always true for valid XML
tagName = stack.pop();
}
if (t.getEndOffset()>=dot) {
return tagName;
}
}
}
t = t==null ? null : t.getNextToken();
}
}
return null; // Should never happen
}
示例15: setCollapsed
import javax.swing.text.Element; //导入方法依赖的package包/类
/**
* Sets whether this <code>Fold</code> is collapsed. Calling this method
* will update both the text area and all <code>Gutter</code> components.
*
* @param collapsed Whether this fold should be collapsed.
* @see #isCollapsed()
* @see #toggleCollapsedState()
*/
public void setCollapsed(boolean collapsed) {
if (collapsed!=this.collapsed) {
// Change our fold state and cached info about folded line count.
int lineCount = getLineCount();
int linesToCollapse = lineCount - childCollapsedLineCount;
if (!collapsed) { // If we're expanding
linesToCollapse = -linesToCollapse;
}
//System.out.println("Hiding lines: " + linesToCollapse +
// " (" + lineCount + ", " + linesToCollapse + ")");
this.collapsed = collapsed;
if (parent!=null) {
parent.updateChildCollapsedLineCount(linesToCollapse);
}
// If an end point of the selection is being hidden, move the caret
// "out" of the fold.
if (collapsed) {
int dot = textArea.getSelectionStart(); // Forgive variable name
Element root = textArea.getDocument().getDefaultRootElement();
int dotLine = root.getElementIndex(dot);
boolean updateCaret = containsLine(dotLine);
if (!updateCaret) {
int mark = textArea.getSelectionEnd();
if (mark!=dot) {
int markLine = root.getElementIndex(mark);
updateCaret = containsLine(markLine);
}
}
if (updateCaret) {
dot = root.getElement(getStartLine()).getEndOffset() - 1;
textArea.setCaretPosition(dot);
}
}
textArea.foldToggled(this);
}
}