/**
* Updates the position and size of the edit panel relative to the given location.
*
* @param loc the location the edit panel should be relative to
* @param absolute if {@code true} the loc is treated as absolute position on the process
* renderer; if {@code false} it is treated as relative to the current process
*/
private void updateEditPanelPosition(final Rectangle2D loc, final boolean absolute) {
int panelX = (int) loc.getCenterX() - EDIT_PANEL_WIDTH / 2;
int panelY = (int) loc.getY() - EDIT_PANEL_HEIGHT - ProcessDrawer.PADDING;
// if panel would be outside process renderer, fix it
if (panelX < WorkflowAnnotation.MIN_X) {
panelX = WorkflowAnnotation.MIN_X;
}
if (panelY < 0) {
panelY = (int) loc.getMaxY() + ProcessDrawer.PADDING;
}
// last fallback is cramped to the bottom. If that does not fit either, don't care
if (panelY + EDIT_PANEL_HEIGHT > view.getSize().getHeight() - ProcessDrawer.PADDING * 2) {
panelY = (int) loc.getMaxY();
}
int index = view.getModel().getProcessIndex(model.getSelected().getProcess());
if (absolute) {
editPanel.setBounds(panelX, panelY, EDIT_PANEL_WIDTH, EDIT_PANEL_HEIGHT);
} else {
Point absoluteP =
ProcessDrawUtils.convertToAbsoluteProcessPoint(
new Point(panelX, panelY), index, rendererModel);
editPanel.setBounds(
(int) absoluteP.getX(), (int) absoluteP.getY(), EDIT_PANEL_WIDTH, EDIT_PANEL_HEIGHT);
}
}
/**
* Creates and adds the JEditorPane for the currently selected annotation to the process renderer.
*/
private void createEditor() {
final WorkflowAnnotation selected = model.getSelected();
Rectangle2D loc = selected.getLocation();
// JEditorPane to edit the comment string
editPane = new JEditorPane("text/html", "");
editPane.setBorder(null);
int paneX = (int) loc.getX();
int paneY = (int) loc.getY();
int index = view.getModel().getProcessIndex(selected.getProcess());
Point absolute =
ProcessDrawUtils.convertToAbsoluteProcessPoint(
new Point(paneX, paneY), index, rendererModel);
editPane.setBounds(
(int) absolute.getX(), (int) absolute.getY(), (int) loc.getWidth(), (int) loc.getHeight());
editPane.setText(AnnotationDrawUtils.createStyledCommentString(selected));
// use proxy for paste actions to trigger reload of editor after paste
Action pasteFromClipboard = editPane.getActionMap().get(PASTE_FROM_CLIPBOARD_ACTION_NAME);
Action paste = editPane.getActionMap().get(PASTE_ACTION_NAME);
if (pasteFromClipboard != null) {
editPane
.getActionMap()
.put(
PASTE_FROM_CLIPBOARD_ACTION_NAME,
new PasteAnnotationProxyAction(pasteFromClipboard, this));
}
if (paste != null) {
editPane.getActionMap().put(PASTE_ACTION_NAME, new PasteAnnotationProxyAction(paste, this));
}
// use proxy for transfer actions to convert e.g. HTML paste to plaintext paste
editPane.setTransferHandler(new TransferHandlerAnnotationPlaintext(editPane));
// IMPORTANT: Linebreaks do not work without the following!
// this filter inserts a \r every time the user enters a newline
// this signal is later used to convert newline to <br/>
((HTMLDocument) editPane.getDocument())
.setDocumentFilter(
new DocumentFilter() {
@Override
public void insertString(
DocumentFilter.FilterBypass fb, int offs, String str, AttributeSet a)
throws BadLocationException {
// this is never called..
super.insertString(
fb,
offs,
str.replaceAll("\n", "\n" + AnnotationDrawUtils.ANNOTATION_HTML_NEWLINE_SIGNAL),
a);
}
@Override
public void replace(FilterBypass fb, int offs, int length, String str, AttributeSet a)
throws BadLocationException {
if (selected instanceof OperatorAnnotation) {
// operator annotations have a character limit, enforce here
try {
int existingLength =
AnnotationDrawUtils.getPlaintextFromEditor(editPane, false).length()
- length;
if (existingLength + str.length() > OperatorAnnotation.MAX_CHARACTERS) {
// insert at beginning or end is fine, cut off excess characters
if (existingLength <= 0 || offs >= existingLength) {
int acceptableLength = OperatorAnnotation.MAX_CHARACTERS - existingLength;
int newLength = Math.max(acceptableLength, 0);
str = str.substring(0, newLength);
} else {
// inserting into middle, do NOT paste at all
return;
}
}
} catch (IOException e) {
// should not happen, if it does this is our smallest problem -> ignore
}
}
super.replace(
fb,
offs,
length,
str.replaceAll("\n", "\n" + AnnotationDrawUtils.ANNOTATION_HTML_NEWLINE_SIGNAL),
a);
}
});
// set background color
if (selected.getStyle().getAnnotationColor() == AnnotationColor.TRANSPARENT) {
editPane.setBackground(Color.WHITE);
} else {
editPane.setBackground(selected.getStyle().getAnnotationColor().getColorHighlight());
}
editPane.addFocusListener(
new FocusAdapter() {
@Override
public void focusLost(final FocusEvent e) {
// right-click menu
if (e.isTemporary()) {
return;
}
if (editPane != null && e.getOppositeComponent() != null) {
// style edit menu, no real focus loss
if (SwingUtilities.isDescendingFrom(e.getOppositeComponent(), editPanel)) {
return;
}
if (SwingUtilities.isDescendingFrom(e.getOppositeComponent(), colorOverlay)) {
return;
}
if (colorOverlay.getParent() == e.getOppositeComponent()) {
return;
}
saveEdit(selected);
removeEditor();
}
}
});
editPane.addKeyListener(
new KeyAdapter() {
/** keep track of control down so Ctrl+Enter works but Enter+Ctrl not */
private boolean controlDown;
@Override
public void keyPressed(final KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_CONTROL) {
controlDown = true;
}
// consume so undo/redo etc are not passed to the process
if (SwingTools.isControlOrMetaDown(e) && e.getKeyCode() == KeyEvent.VK_Z
|| e.getKeyCode() == KeyEvent.VK_Y) {
e.consume();
}
}
@Override
public void keyReleased(final KeyEvent e) {
switch (e.getKeyCode()) {
case KeyEvent.VK_CONTROL:
controlDown = false;
break;
case KeyEvent.VK_ENTER:
if (!controlDown) {
updateEditorHeight(selected);
} else {
// if control was down before Enter was pressed, save & exit
saveEdit(selected);
removeEditor();
model.setSelected(null);
}
break;
case KeyEvent.VK_ESCAPE:
// ignore changes on escape
removeEditor();
model.setSelected(null);
break;
default:
break;
}
}
});
editPane
.getDocument()
.addDocumentListener(
new DocumentListener() {
@Override
public void removeUpdate(DocumentEvent e) {
updateEditorHeight(selected);
}
@Override
public void insertUpdate(DocumentEvent e) {
updateEditorHeight(selected);
}
@Override
public void changedUpdate(DocumentEvent e) {
updateEditorHeight(selected);
}
});
view.add(editPane);
editPane.selectAll();
}