下面列出了javax.swing.text.JTextComponent#replaceSelection ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public void actionPerformed(ActionEvent event) {
JTextComponent target = getTextComponent(event);
Integer tabStop = (Integer) target.getDocument().getProperty(PlainDocument.tabSizeAttribute);
String indent = SyntaxUtil.SPACES.substring(0, tabStop);
if (target != null) {
String[] lines = SyntaxUtil.getSelectedLines(target);
int start = target.getSelectionStart();
StringBuilder sb = new StringBuilder();
for (String line : lines) {
if (line.startsWith(indent)) {
sb.append(line.substring(indent.length()));
} else if (line.startsWith("\t")) {
sb.append(line.substring(1));
} else {
sb.append(line);
}
sb.append('\n');
}
target.replaceSelection(sb.toString());
target.select(start, start + sb.length());
}
}
/**
* {@inheritDoc}
*/
@Override
public void actionPerformed(ActionEvent e) {
JTextComponent target = getTextComponent(e);
if (target != null) {
SyntaxDocument sDoc = ActionUtils.getSyntaxDocument(target);
int pos = target.getCaretPosition();
int start = sDoc.getParagraphElement(pos).getStartOffset();
String line = ActionUtils.getLine(target);
if (ActionUtils.isEmptyOrBlanks(line)) {
try {
sDoc.insertString(pos, "}", null);
Token t = sDoc.getPairFor(sDoc.getTokenAt(pos));
if (null != t) {
String pairLine = ActionUtils.getLineAt(target, t.start);
String indent = ActionUtils.getIndent(pairLine);
sDoc.replace(start, line.length() + 1, indent + "}", null);
}
} catch (BadLocationException ble) {
target.replaceSelection("}");
}
} else {
target.replaceSelection("}");
}
}
}
/**
* {@inheritDoc}
* @param e
*/
@Override
public void actionPerformed(ActionEvent e) {
JTextComponent target = getTextComponent(e);
if (target != null && target.getDocument() instanceof SyntaxDocument) {
String[] lines = ActionUtils.getSelectedLines(target);
StringBuffer toggled = new StringBuffer();
for (int i = 0; i < lines.length; i++) {
Matcher m = lineCommentPattern.matcher(lines[i]);
if (m.find()) {
toggled.append(m.replaceFirst("$2"));
} else {
toggled.append(lineCommentStart);
toggled.append(lines[i]);
}
toggled.append('\n');
}
target.replaceSelection(toggled.toString());
}
}
public void actionPerformed(ActionEvent e) {
JTextComponent target = getTextComponent(e);
Integer tabStop = (Integer) target.getDocument().getProperty(PlainDocument.tabSizeAttribute);
String indent = ActionUtils.SPACES.substring(0, tabStop);
if (target != null) {
String[] lines = ActionUtils.getSelectedLines(target);
int start = target.getSelectionStart();
StringBuilder sb = new StringBuilder();
for (String line : lines) {
if (line.startsWith(indent)) {
sb.append(line.substring(indent.length()));
} else if (line.startsWith("\t")) {
sb.append(line.substring(1));
} else {
sb.append(line);
}
sb.append('\n');
}
target.replaceSelection(sb.toString());
target.select(start, start + sb.length());
}
}
@Override
public void actionPerformed(ActionEvent e) {
JTextComponent target = getTextComponent(e);
if (target != null) {
String selected = target.getSelectedText();
if (selected == null) {
PlainDocument pDoc = (PlainDocument) target.getDocument();
Integer tabStop = (Integer) pDoc.getProperty(PlainDocument.tabSizeAttribute);
int lineStart = pDoc.getParagraphElement(target.getCaretPosition()).getStartOffset();
int column = target.getCaretPosition() - lineStart;
int needed = tabStop - (column % tabStop);
target.replaceSelection(ActionUtils.SPACES.substring(0, needed));
} else {
String[] lines = ActionUtils.getSelectedLines(target);
int start = target.getSelectionStart();
StringBuilder sb = new StringBuilder();
for (String line : lines) {
sb.append('\t');
sb.append(line);
sb.append('\n');
}
target.replaceSelection(sb.toString());
target.select(start, start + sb.length());
}
}
}
/**
* {@inheritDoc}
* @param e
*/
@Override
public void actionPerformed(ActionEvent e) {
JTextComponent target = getTextComponent(e);
if (target != null) {
SyntaxDocument sDoc = ActionUtils.getSyntaxDocument(target);
int pos = target.getCaretPosition();
int start = sDoc.getParagraphElement(pos).getStartOffset();
String line = ActionUtils.getLine(target);
String lineToPos = line.substring(0, pos - start);
String prefix = ActionUtils.getIndent(line);
int tabSize = ActionUtils.getTabSize(target);
if (lineToPos.trim().endsWith(":")) {
prefix += ActionUtils.SPACES.substring(0, tabSize);
} else {
String noComment = sDoc.getUncommentedText(start, pos); // skip EOL comments
if (noComment.trim().endsWith(":")) {
prefix += ActionUtils.SPACES.substring(0, tabSize);
}
}
target.replaceSelection("\n" + prefix);
}
}
@Override
public void actionPerformed(JTextComponent target, SyntaxDocument sDoc,
int dot, ActionEvent e) {
Token tok = sDoc.getTokenAt(dot);
while (tok != null && tok.type != TokenType.TYPE) {
tok = sDoc.getPrevToken(tok);
}
if (tok == null) {
target.replaceSelection(">");
} else {
CharSequence tag = tok.getText(sDoc);
int savepos = target.getSelectionStart();
target.replaceSelection("></" + tag.subSequence(1, tag.length()) + ">");
target.setCaretPosition(savepos + 1);
}
}
/**
* {@inheritDoc}
*/
@Override
public void actionPerformed(JTextComponent target, SyntaxDocument sDoc,
int dot, ActionEvent e) {
int pos = target.getCaretPosition();
int start = sDoc.getParagraphElement(pos).getStartOffset();
String line = ActionUtils.getLine(target);
if (ActionUtils.isEmptyOrBlanks(line)) {
try {
sDoc.insertString(pos, "}", null);
Token t = sDoc.getPairFor(sDoc.getTokenAt(pos));
if (null != t) {
String pairLine = ActionUtils.getLineAt(target, t.start);
String indent = ActionUtils.getIndent(pairLine);
sDoc.replace(start, line.length() + 1, indent + "}", null);
}
} catch (BadLocationException ble) {
target.replaceSelection("}");
}
} else {
target.replaceSelection("}");
}
}
/**
* Expand the string template and replaces the selection with the expansion
* of the template. The template String may contain any of the following
* special tags.
*
* <li>{@code #{selection}} replaced with the selection, if any. If there is
* no selection, then the {@code #{selection}} tag will be removed.
* <li>{@code #{p:AnyText}} will be replaced by {@code any text} and then
* set the text selection to {@code AnyText}
*
* This methood does NOT perform any indentation and the template should
* generally span one line only
*
* @param target
* @param template
*/
public static void insertSimpleTemplate(JTextComponent target, String template) {
String selected = target.getSelectedText();
selected = (selected == null) ? "" : selected;
StringBuffer sb = new StringBuffer(template.length());
Matcher pm = PTAGS_PATTERN.matcher(template.replace(TEMPLATE_SELECTION, selected));
int selStart = -1, selEnd = -1;
int lineStart = 0;
while (pm.find()) {
selStart = pm.start() + lineStart;
pm.appendReplacement(sb, pm.group(1));
selEnd = sb.length();
}
pm.appendTail(sb);
// String expanded = template.replace(TEMPLATE_SELECTION, selected);
if (selStart >= 0) {
selStart += target.getSelectionStart();
selEnd += target.getSelectionStart();
}
target.replaceSelection(sb.toString());
if (selStart >= 0) {
// target.setCaretPosition(selStart);
target.select(selStart, selEnd);
}
}
/**
* {@inheritDoc}
* @param e
*/
@Override
public void actionPerformed(JTextComponent target, SyntaxDocument sDoc,
int dot, ActionEvent e) {
if (lineCommentPattern == null) {
lineCommentPattern = Pattern.compile("(^" + lineCommentStart + ")(.*)");
}
String[] lines = ActionUtils.getSelectedLines(target);
int start = target.getSelectionStart();
StringBuffer toggled = new StringBuffer();
for (int i = 0; i < lines.length; i++) {
Matcher m = lineCommentPattern.matcher(lines[i]);
if (m.find()) {
toggled.append(m.replaceFirst("$2"));
} else {
toggled.append(lineCommentStart);
toggled.append(lines[i]);
}
toggled.append('\n');
}
target.replaceSelection(toggled.toString());
target.select(start, start + toggled.length());
}
public void actionPerformed(ActionEvent event) {
JTextComponent target = getTextComponent(event);
if (target != null) {
String line = SyntaxUtil.getLine(target);
/**
* Perform Smart Indentation: pos must be on a line: this method will
* use the previous lines indentation (number of spaces before any non-space
* character or end of line) and return that as the prefix.
*/
String indent = "";
if (line != null && line.length() > 0) {
int i = 0;
while (i < line.length() && line.charAt(i) == ' ') {
i++;
}
indent = line.substring(0, i);
}
target.replaceSelection("\n" + indent);
}
}
/**
* Inserts a completion. Any time a code completion event occurs, the actual
* text insertion happens through this method.
*
* @param c A completion to insert. This cannot be <code>null</code>.
* @param typedParamListStartChar Whether the parameterized completion start
* character was typed (typically <code>'('</code>).
*/
@Override
protected void insertCompletion(Completion c,
boolean typedParamListStartChar) {
JTextComponent textComp = getTextComponent();
String alreadyEntered = c.getAlreadyEntered(textComp);
hidePopupWindow();
Caret caret = textComp.getCaret();
int dot = caret.getDot();
int len = alreadyEntered.length();
int start = dot - len;
String replacement = getReplacementText(c, textComp.getDocument(),
start, len);
// Bene
if(replacement != null && replacement.startsWith("(none)"))
return;
caret.setDot(start);
caret.moveDot(dot);
textComp.replaceSelection(replacement);
if (isParameterAssistanceEnabled()
&& (c instanceof ParameterizedCompletion)) {
ParameterizedCompletion pc = (ParameterizedCompletion) c;
startParameterizedCompletionAssistance(pc, typedParamListStartChar);
}
}
public void actionPerformed(ActionEvent event) {
JTextComponent target = getTextComponent(event);
if (target != null) {
String selected = target.getSelectedText();
if (selected != null) {
target.replaceSelection(left + selected + right);
} else {
target.replaceSelection(left + right);
}
target.setCaretPosition(target.getCaretPosition() - 1);
}
}
public void actionPerformed(ActionEvent e) {
JTextComponent target = getTextComponent(e);
if (target != null) {
String line = ActionUtils.getLine(target);
String prefix = ActionUtils.getIndent(line);
Integer tabSize = (Integer) target.getDocument().getProperty(PlainDocument.tabSizeAttribute);
if (line.trim().endsWith("{")) {
prefix += ActionUtils.SPACES.substring(0, tabSize);
}
SyntaxDocument sDoc = ActionUtils.getSyntaxDocument(target);
if (sDoc != null && line.trim().equals("}")) {
int pos = target.getCaretPosition();
int start = sDoc.getParagraphElement(pos).getStartOffset();
int end = sDoc.getParagraphElement(pos).getEndOffset();
if (end >= sDoc.getLength()) {
end--;
}
if (line.startsWith(ActionUtils.SPACES.substring(0, tabSize))) {
try {
sDoc.replace(start, end - start, line.substring(tabSize) + "\n", null);
} catch (BadLocationException ex) {
Logger.getLogger(ActionUtils.class.getName()).log(Level.SEVERE, ex.getMessage(), ex);
}
} else {
target.replaceSelection("\n" + prefix);
}
} else {
target.replaceSelection("\n" + prefix);
}
}
}
public void actionPerformed(ActionEvent e) {
JTextComponent target = getTextComponent(e);
if (target != null) {
String left = e.getActionCommand();
String right = PAIRS.get(left);
String selected = target.getSelectedText();
if (selected != null) {
target.replaceSelection(left + selected + right);
} else {
target.replaceSelection(left + right);
}
target.setCaretPosition(target.getCaretPosition() - 1);
}
}
public void actionPerformed(ActionEvent e) {
JTextComponent target = getTextComponent(e);
if (target != null) {
String line = ActionUtils.getLine(target);
target.replaceSelection("\n" + ActionUtils.getIndent(line));
}
}
@Override
public void actionPerformed(ActionEvent event) {
JTextComponent target = getTextComponent(event);
if (target != null) {
String selected = target.getSelectedText();
if (selected == null) {
PlainDocument pDoc = (PlainDocument) target.getDocument();
Integer tabStop = (Integer) pDoc.getProperty(PlainDocument.tabSizeAttribute);
// insert needed number of tabs:
int lineStart = pDoc.getParagraphElement(target.getCaretPosition()).getStartOffset();
// column
int column = target.getCaretPosition() - lineStart;
int needed = tabStop - (column % tabStop);
target.replaceSelection(SyntaxUtil.SPACES.substring(0, needed));
} else {
String[] lines = SyntaxUtil.getSelectedLines(target);
int start = target.getSelectionStart();
StringBuilder sb = new StringBuilder();
for (String line : lines) {
sb.append('\t');
sb.append(line);
sb.append('\n');
}
target.replaceSelection(sb.toString());
target.select(start, start + sb.length());
}
}
}
/**
* Replace single occurrence of match with the replacement.
* @param target
* @param replacement
*/
public void doReplace(JTextComponent target, String replacement) {
if (target.getSelectedText() != null) {
target.replaceSelection(replacement == null ? "" : replacement);
doFindNext(target);
}
}
/**
* Expand the string template and replaces the selection with the expansion
* of the template. The template String may contain any of the following
* special tags.
*
* <li>{@code #{selection}} replaced with the selection, if any. If there is
* no selection, then the {@code #{selection}} tag will be removed.
* <li>{@code #{p:any text}} will be replaced by {@code any text} and then
* set selection to {@code any text}
*
* This method properly handles indentation as follows:
* The indentation of the whole block will match the indentation of the caret
* line, or the line with the beginning of the selection, if the selection is
* in whole line, i.e.e one or more lines of selected text. {@see selectLines()}
*
* @param target JEditorCOmponent to be affected
* @param templateLines template split as a String array of lines.
*
* @see insertLinesTemplate
*/
public static void insertLinesTemplate(JTextComponent target, String[] templateLines) {
// get some stuff we'll need:
String thisIndent = getIndent(getLineAt(target, target.getSelectionStart()));
String[] selLines = getSelectedLines(target);
int selStart = -1, selEnd = -1;
StringBuffer sb = new StringBuffer();
for (String tLine : templateLines) {
int selNdx = tLine.indexOf("#{selection}");
if (selNdx >= 0) {
// for each of the selected lines:
for (String selLine : selLines) {
sb.append(tLine.subSequence(0, selNdx));
sb.append(selLine);
sb.append('\n');
}
} else {
sb.append(thisIndent);
// now check for any ptags
Matcher pm = PTAGS_PATTERN.matcher(tLine);
int lineStart = sb.length();
while (pm.find()) {
selStart = pm.start() + lineStart;
pm.appendReplacement(sb, pm.group(1));
selEnd = sb.length();
}
pm.appendTail(sb);
sb.append('\n');
}
}
int ofst = target.getSelectionStart();
target.replaceSelection(sb.toString());
if (selStart >= 0) {
// target.setCaretPosition(selStart);
target.select(ofst + selStart, ofst + selEnd);
}
}
@Override
public void actionPerformed(ActionEvent e) {
JTextComponent component = getFocusedComponent();
component.replaceSelection("");
}