void removeText() {
if ((p0 != null) && (p1 != null) && (p0.getOffset() != p1.getOffset())) {
try {
Document doc = c.getDocument();
doc.remove(p0.getOffset(), p1.getOffset() - p0.getOffset());
} catch (BadLocationException e) {
}
}
}
/**
* Called when the {@link Document} registered using {@link #startTracking} is edited. This
* happens when text is inserted or removed.
*
* @param de
*/
protected void editEvent(DocumentEvent de) {
// System.out.println("document edit @ " + de.getOffset());
if (de.getOffset() <= pos.getOffset()) {
updatePosition();
// System.out.println("updating, new line no: " + lineNo);
}
}
/**
* Two folds are considered equal if they start at the same offset.
*
* @param otherFold Another fold to compare this one to.
* @return How this fold compares to the other.
*/
@Override
public int compareTo(Fold otherFold) {
int result = -1;
if (otherFold != null) {
result = startOffs.getOffset() - otherFold.startOffs.getOffset();
// result = getStartLine() - otherFold.getStartLine();
}
return result;
}
// Remove the old text if the action is a MOVE.
// However, we do not allow dropping on top of the selected text, so in that case do nothing.
protected void exportDone(JComponent c, Transferable data, int action) {
if (c != textComponent) { // ###
System.out.println("*** exportDone(): c=" + c);
}
System.out.println(
">>> exportDone(): action="
+ action
+ ", MOVE="
+ MOVE
+ ", shouldRemove="
+ shouldRemove);
if (shouldRemove && (action == MOVE)) {
if ((p0 != null) && (p1 != null) && (p0.getOffset() != p1.getOffset())) {
try {
textComponent.getDocument().remove(p0.getOffset(), p1.getOffset() - p0.getOffset());
} catch (BadLocationException e) {
System.out.println("*** exportDone(): Can't remove text from source.");
}
}
}
source = null;
}
/** Update the tracked position. Will notify listeners if line number has changed. */
protected synchronized void updatePosition() {
if (doc != null && pos != null) {
// track position
int offset = pos.getOffset();
int oldLineIdx = lineIdx;
lineIdx = doc.getDefaultRootElement().getElementIndex(offset); // offset to lineNo
if (lineIdx != oldLineIdx) {
for (LineListener l : listeners) {
if (l != null) {
l.lineChanged(this, oldLineIdx, lineIdx);
} else {
listeners.remove(l); // remove null listener
}
}
}
}
}
@Override
public String getSelectedText() {
Document doc = getDocument();
int start = getSelectionStart();
int end = getSelectionEnd();
try {
Position p0 = doc.createPosition(start);
Position p1 = doc.createPosition(end);
StringWriter sw = new StringWriter(p1.getOffset() - p0.getOffset());
getEditorKit().write(sw, doc, p0.getOffset(), p1.getOffset() - p0.getOffset());
return StringUtil.removeHtmlTags(sw.toString());
} catch (BadLocationException e) {
LOG.warn(e);
} catch (IOException e) {
LOG.warn(e);
}
return super.getSelectedText();
}
public boolean importData(JComponent c, Transferable t) {
if (c != textComponent) { // ### never happens, we dont share transfer handlers
System.out.println("*** importData(): c=" + c);
}
try {
DataFlavor[] flavors = t.getTransferDataFlavors();
boolean hasStringFlavor = t.isDataFlavorSupported(DataFlavor.stringFlavor);
boolean hasImageFlavor = t.isDataFlavorSupported(DataFlavor.imageFlavor);
boolean hasFilelistFlavor = t.isDataFlavorSupported(DataFlavor.javaFileListFlavor);
//
System.out.println(">>> import data to text panel (" + flavors.length + " flavors)");
// ### for (int i = 0; i < flavors.length; i++) {
// ### System.out.println(flavors[i]);
// ###}
System.out.println(" > string flavor supported: " + hasStringFlavor);
System.out.println(" > image flavor supported: " + hasImageFlavor);
System.out.println(" > filelist flavor supported: " + hasFilelistFlavor);
//
// We do not allow dropping on top of the selected text
if ((source == textComponent)
&& (textComponent.getCaretPosition() >= p0.getOffset())
&& (textComponent.getCaretPosition() <= p1.getOffset())) {
shouldRemove = false;
System.out.println(
">>> dropping on top of the selected text is not allowed -- import canceled");
return true;
}
//
if (hasStringFlavor) {
String data = (String) t.getTransferData(DataFlavor.stringFlavor);
int pos = textComponent.getCaretPosition();
if (DeepaMehtaUtils.isImage(data)) {
HTMLEditorKit kit = (HTMLEditorKit) ((JEditorPane) textComponent).getEditorKit();
HTMLDocument doc = (HTMLDocument) textComponent.getDocument();
String html = "<img src=\"" + data + "\"></img>";
kit.insertHTML(doc, pos, html, 0, 0, HTML.Tag.IMG); // ### <img> not XML conform
// ### doc.insertBeforeStart(doc.getParagraphElement(pos), html);
System.out.println(">>> IMG tag inserted: \"" + html + "\"");
} else {
textComponent.getDocument().insertString(pos, data, null);
System.out.println(">>> regular text inserted: \"" + data + "\"");
}
} else if (hasFilelistFlavor) {
java.util.List files = (java.util.List) t.getTransferData(DataFlavor.javaFileListFlavor);
System.out.println(" " + files.size() + " files:");
for (int i = 0; i < files.size(); i++) {
File file = (File) files.get(i);
String filename = file.getName();
System.out.println(" " + file);
if (DeepaMehtaUtils.isHTML(filename)) {
String html = DeepaMehtaUtils.readFile(file);
textComponent.setText(html); // ### replace instead insert
textComponent.setCaretPosition(0);
// ### ((JEditorPane) textComponent).setPage("file://" + file); // ### replace instead
// insert
// ### setDirty("dropping HTML file");
System.out.println(">>> HTML inserted (read from file)");
break; // ### max one file is inserted
} else if (DeepaMehtaUtils.isImage(filename)) {
HTMLEditorKit kit = (HTMLEditorKit) ((JEditorPane) textComponent).getEditorKit();
HTMLDocument doc = (HTMLDocument) textComponent.getDocument();
int pos = textComponent.getCaretPosition();
String imagefile = file.getPath().replace('\\', '/'); // ###
String html = "<img src=\"" + imagefile + "\"></img>";
kit.insertHTML(doc, pos, html, 0, 0, HTML.Tag.IMG); // ### <img> not XML conform
// ### doc.insertBeforeStart(doc.getParagraphElement(pos), html);
System.out.println(">>> IMG tag inserted: \"" + html + "\"");
} else {
System.out.println(
"### importData(): only implemented for HTML files -- import canceled");
}
}
} else {
System.out.println("*** importData(): no supported flavor " + c);
}
return true;
} catch (UnsupportedFlavorException ufe) {
System.out.println("*** while dropping to text panel: " + ufe);
} catch (BadLocationException ble) {
System.out.println("*** while dropping to text panel: " + ble);
} catch (IOException ioe) {
System.out.println("*** while dropping to text panel: " + ioe);
}
//
return super.importData(c, t);
}
/**
* Returns the starting offset of this fold region. For example, for languages such as C and Java,
* this would be the offset of the opening curly brace of a code block.
*
* <p>The value returned by this method will automatically update as the text area's contents are
* modified, to track the starting offset of the code block.
*
* @return The start offset of this fold.
* @see #getStartLine()
* @see #getEndOffset()
*/
public int getStartOffset() {
return startOffs.getOffset();
}
/**
* Returns the end offset of this fold. For example, in languages such as C and Java, this might
* be the offset of the closing curly brace of a code block.
*
* <p>The value returned by this method will automatically update as the text area's contents are
* modified, to track the ending offset of the code block.
*
* @return The end offset of this code block, or {@link Integer#MAX_VALUE} if this fold region
* isn't closed properly. The latter causes this fold to collapsed all lines through the end
* of the file.
* @see #getEndLine()
* @see #getStartOffset()
*/
public int getEndOffset() {
return endOffs != null ? endOffs.getOffset() : Integer.MAX_VALUE;
}