@Override
public final void mousePressed(final MouseEvent e) {
if (!isEnabled() || !isFocusable()) return;
requestFocusInWindow();
caret(true);
if (SwingUtilities.isMiddleMouseButton(e)) copy();
final boolean shift = e.isShiftDown();
final boolean selected = editor.selected();
if (SwingUtilities.isLeftMouseButton(e)) {
final int c = e.getClickCount();
if (c == 1) {
// selection mode
if (shift) editor.startSelection(true);
select(e.getPoint(), !shift);
} else if (c == 2) {
editor.selectWord();
} else {
editor.selectLine();
}
} else if (!selected) {
select(e.getPoint(), true);
}
}
@Override
public void keyTyped(final KeyEvent e) {
if (!hist.active()
|| control(e)
|| DELNEXT.is(e)
|| DELPREV.is(e)
|| ESCAPE.is(e)
|| CUT2.is(e)) return;
final int caret = editor.pos();
// remember if marked text is to be deleted
final StringBuilder sb = new StringBuilder(1).append(e.getKeyChar());
final boolean indent = TAB.is(e) && editor.indent(sb, e.isShiftDown());
// delete marked text
final boolean selected = editor.selected() && !indent;
if (selected) editor.delete();
final int move = ENTER.is(e) ? editor.enter(sb) : editor.add(sb, selected);
// refresh history and adjust cursor position
hist.store(editor.text(), caret, editor.pos());
if (move != 0) editor.pos(Math.min(editor.size(), caret + move));
// adjust text height
scrollCode.invokeLater(true);
e.consume();
}
/** Sorts text. */
public final void sort() {
final int caret = editor.pos();
final DialogSort ds = new DialogSort(gui);
if (!ds.ok() || !editor.sort()) return;
hist.store(editor.text(), caret, editor.pos());
scrollCode.invokeLater(true);
repaint();
}
@Override
public void mouseReleased(final MouseEvent e) {
if (linkListener == null) return;
if (SwingUtilities.isLeftMouseButton(e)) {
editor.endSelection();
// evaluate link
if (!editor.selected()) {
final TextIterator iter = rend.jump(e.getPoint());
final String link = iter.link();
if (link != null) linkListener.linkClicked(link);
}
}
}
/**
* Replaces the text.
*
* @param rc replace context
*/
final void replace(final ReplaceContext rc) {
try {
final int[] select = rend.replace(rc);
if (rc.text != null) {
final boolean sel = editor.selected();
setText(rc.text);
editor.select(select[0], select[sel ? 1 : 0]);
release(Action.CHECK);
}
gui.status.setText(Text.STRINGS_REPLACED);
} catch (final Exception ex) {
final String msg = Util.message(ex).replaceAll(Prop.NL + ".*", "");
gui.status.setError(Text.REGULAR_EXPR + Text.COLS + msg);
}
}
/** Code completion. */
private void complete() {
if (selected()) return;
// find first character
final int caret = editor.pos(), startPos = editor.completionStart();
final String prefix = string(substring(editor.text(), startPos, caret));
if (prefix.isEmpty()) return;
// find insertion candidates
final TreeMap<String, String> tmp = new TreeMap<>();
for (final Entry<String, String> entry : REPLACE.entrySet()) {
final String key = entry.getKey();
if (key.startsWith(prefix)) tmp.put(key, entry.getValue());
}
if (tmp.size() == 1) {
// insert single candidate
complete(tmp.values().iterator().next(), startPos);
} else if (!tmp.isEmpty()) {
// show popup menu
final JPopupMenu pm = new JPopupMenu();
final ActionListener al =
new ActionListener() {
@Override
public void actionPerformed(final ActionEvent ae) {
complete(ae.getActionCommand().replaceAll("^.*?\\] ", ""), startPos);
}
};
for (final Entry<String, String> entry : tmp.entrySet()) {
final JMenuItem mi = new JMenuItem("[" + entry.getKey() + "] " + entry.getValue());
pm.add(mi);
mi.addActionListener(al);
}
pm.addSeparator();
final JMenuItem mi = new JMenuItem(Text.INPUT + Text.COLS + prefix);
mi.setEnabled(false);
pm.add(mi);
final int[] cursor = rend.cursor();
pm.show(this, cursor[0], cursor[1]);
// highlight first entry
final MenuElement[] me = {pm, (JMenuItem) pm.getComponent(0)};
MenuSelectionManager.defaultManager().setSelectedPath(me);
}
}
/**
* Copies the selected text to the clipboard.
*
* @return true if text was copied
*/
private boolean copy() {
final String txt = editor.copy();
if (txt.isEmpty()) return false;
// copy selection to clipboard
BaseXLayout.copy(txt);
return true;
}
/**
* Sets the output text.
*
* @param text output text
* @param size text size
*/
public final void setText(final byte[] text, final int size) {
byte[] txt = text;
if (Token.contains(text, '\r')) {
// remove carriage returns
int ns = 0;
for (int r = 0; r < size; ++r) {
final byte b = text[r];
if (b != '\r') text[ns++] = b;
}
// new text is different...
txt = Arrays.copyOf(text, ns);
} else if (text.length != size) {
txt = Arrays.copyOf(text, size);
}
if (editor.text(txt)) {
if (hist != null) hist.store(txt, editor.pos(), 0);
}
if (isShowing()) resizeCode.invokeLater();
}
/** Jumps to a specific line. */
private void gotoLine() {
final byte[] last = editor.text();
final int ll = last.length;
final int cr = getCaret();
int l = 1;
for (int e = 0; e < ll && e < cr; e += cl(last, e)) {
if (last[e] == '\n') ++l;
}
final DialogLine dl = new DialogLine(gui, l);
if (!dl.ok()) return;
final int el = dl.line();
l = 1;
int p = 0;
for (int e = 0; e < ll && l < el; e += cl(last, e)) {
if (last[e] != '\n') continue;
p = e + 1;
++l;
}
setCaret(p);
gui.editor.posCode.invokeLater();
}
/**
* Finishes a command.
*
* @param old old cursor position; store entry to history if position != -1
*/
private void finish(final int old) {
if (old != -1) hist.store(editor.text(), old, editor.pos());
scrollCode.invokeLater(true);
release(Action.CHECK);
}
/**
* Auto-completes a string at the specified position.
*
* @param string string
* @param start start position
*/
private void complete(final String string, final int start) {
final int caret = editor.pos();
editor.complete(string, start);
hist.store(editor.text(), caret, editor.pos());
scrollCode.invokeLater(true);
}
/**
* Default constructor.
*
* @param txt initial text
* @param editable editable flag
* @param win parent window
*/
public TextPanel(final String txt, final boolean editable, final Window win) {
super(win);
this.editable = editable;
editor = new TextEditor(gui);
setFocusable(true);
setFocusTraversalKeysEnabled(!editable);
setBackground(BACK);
setOpaque(editable);
addMouseMotionListener(this);
addMouseWheelListener(this);
addComponentListener(this);
addMouseListener(this);
addKeyListener(this);
addFocusListener(
new FocusAdapter() {
@Override
public void focusGained(final FocusEvent e) {
if (isEnabled()) caret(true);
}
@Override
public void focusLost(final FocusEvent e) {
caret(false);
rend.caret(false);
}
});
setFont(dmfont);
layout(new BorderLayout());
scroll = new BaseXScrollBar(this);
rend = new TextRenderer(editor, scroll, editable, gui);
add(rend, BorderLayout.CENTER);
add(scroll, BorderLayout.EAST);
setText(txt);
hist = new History(editable ? editor.text() : null);
new BaseXPopup(
this,
editable
? new GUICommand[] {
new FindCmd(),
new FindNextCmd(),
new FindPrevCmd(),
null,
new GotoCmd(),
null,
new UndoCmd(),
new RedoCmd(),
null,
new AllCmd(),
new CutCmd(),
new CopyCmd(),
new PasteCmd(),
new DelCmd()
}
: new GUICommand[] {
new FindCmd(),
new FindNextCmd(),
new FindPrevCmd(),
null,
new GotoCmd(),
null,
new AllCmd(),
new CopyCmd()
});
}
/**
* Returns a currently marked string if it does not extend over more than one line.
*
* @return search string
*/
public final String searchString() {
final String string = editor.copy();
return string.indexOf('\n') != -1 ? "" : string;
}
/**
* Pastes a string.
*
* @param string string to be pasted
*/
public final void paste(final String string) {
final int pos = editor.pos();
if (editor.selected()) editor.delete();
editor.add(string);
finish(pos);
}
/**
* Selects the text at the specified position.
*
* @param point mouse position
* @param start states if selection has just been started
*/
private void select(final Point point, final boolean start) {
editor.select(rend.jump(point).pos(), start);
rend.repaint();
}
@Override
public void keyPressed(final KeyEvent e) {
// ignore modifier keys
if (specialKey(e) || modifier(e)) return;
// re-animate cursor
caret(true);
// operations without cursor movement...
final int fh = rend.fontHeight();
if (SCROLLDOWN.is(e)) {
scroll.pos(scroll.pos() + fh);
return;
}
if (SCROLLUP.is(e)) {
scroll.pos(scroll.pos() - fh);
return;
}
// set cursor position
final boolean selected = editor.selected();
final int pos = editor.pos();
final boolean shift = e.isShiftDown();
boolean down = true, consumed = true;
// move caret
int lc = Integer.MIN_VALUE;
final byte[] txt = editor.text();
if (NEXTWORD.is(e)) {
editor.nextWord(shift);
} else if (PREVWORD.is(e)) {
editor.prevWord(shift);
down = false;
} else if (TEXTSTART.is(e)) {
editor.textStart(shift);
down = false;
} else if (TEXTEND.is(e)) {
editor.textEnd(shift);
} else if (LINESTART.is(e)) {
editor.lineStart(shift);
down = false;
} else if (LINEEND.is(e)) {
editor.lineEnd(shift);
} else if (PREVPAGE_RO.is(e) && !hist.active()) {
lc = editor.linesUp(getHeight() / fh, false, lastCol);
down = false;
} else if (NEXTPAGE_RO.is(e) && !hist.active()) {
lc = editor.linesDown(getHeight() / fh, false, lastCol);
} else if (PREVPAGE.is(e) && !sc(e)) {
lc = editor.linesUp(getHeight() / fh, shift, lastCol);
down = false;
} else if (NEXTPAGE.is(e) && !sc(e)) {
lc = editor.linesDown(getHeight() / fh, shift, lastCol);
} else if (NEXTLINE.is(e) && !MOVEDOWN.is(e)) {
lc = editor.linesDown(1, shift, lastCol);
} else if (PREVLINE.is(e) && !MOVEUP.is(e)) {
lc = editor.linesUp(1, shift, lastCol);
down = false;
} else if (NEXTCHAR.is(e)) {
editor.next(shift);
} else if (PREVCHAR.is(e)) {
editor.previous(shift);
down = false;
} else {
consumed = false;
}
lastCol = lc == Integer.MIN_VALUE ? -1 : lc;
// edit text
if (hist.active()) {
if (COMPLETE.is(e)) {
complete();
return;
}
if (MOVEDOWN.is(e)) {
editor.move(true);
} else if (MOVEUP.is(e)) {
editor.move(false);
} else if (DELLINE.is(e)) {
editor.deleteLine();
} else if (DELNEXTWORD.is(e)) {
editor.deleteNext(true);
} else if (DELLINEEND.is(e)) {
editor.deleteNext(false);
} else if (DELNEXT.is(e)) {
editor.delete();
} else if (DELPREVWORD.is(e)) {
editor.deletePrev(true);
down = false;
} else if (DELLINESTART.is(e)) {
editor.deletePrev(false);
down = false;
} else if (DELPREV.is(e)) {
editor.deletePrev();
down = false;
} else {
consumed = false;
}
}
if (consumed) e.consume();
final byte[] tmp = editor.text();
if (txt != tmp) {
// text has changed: add old text to history
hist.store(tmp, pos, editor.pos());
scrollCode.invokeLater(down);
} else if (pos != editor.pos() || selected != editor.selected()) {
// cursor position or selection state has changed
cursorCode.invokeLater(down ? 2 : 0);
}
}
/**
* Returns the current text cursor.
*
* @return cursor position
*/
private int getCaret() {
return editor.pos();
}
/**
* Sets the caret to the specified position. A text selection will be removed.
*
* @param pos caret position
*/
public final void setCaret(final int pos) {
editor.pos(pos);
cursorCode.invokeLater(1);
caret(true);
}
/** Selects the whole text. */
private void selectAll() {
editor.selectAll();
rend.repaint();
}
/**
* Returns the output text.
*
* @return output text
*/
public final byte[] getText() {
return editor.text();
}
/** Formats the selected text. */
public final void format() {
final int caret = editor.pos();
if (editor.format(rend.getSyntax())) hist.store(editor.text(), caret, editor.pos());
scrollCode.invokeLater(true);
}
/**
* Tests if text has been selected.
*
* @return result of check
*/
public final boolean selected() {
return editor.selected();
}
/**
* Case conversion.
*
* @param cs case type
*/
public final void toCase(final Case cs) {
final int caret = editor.pos();
if (editor.toCase(cs)) hist.store(editor.text(), caret, editor.pos());
scrollCode.invokeLater(true);
}
/**
* Sets the error marker.
*
* @param pos start of optional error mark
*/
public final void error(final int pos) {
editor.error(pos);
rend.repaint();
}
/** Removes the error marker. */
public final void resetError() {
editor.error(-1);
rend.repaint();
}