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feat: Add handleMoveLines method with keystroke support and ActionListeners

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- Implement handleMoveLines to manage line movement functionality
- Add keystroke bindings for triggering line movements
- Integrate ActionListeners for responsive UI interactions
- Ensure cross-platform compatibility for macOS and Linux
This commit is contained in:
Yehia Rasheed
2025-03-07 15:09:35 +02:00
parent fe152b752d
commit 34cc4387e4
1 changed files with 90 additions and 0 deletions
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90
app/src/processing/app/ui/Editor.java
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@@ -821,6 +821,17 @@ public abstract class Editor extends JFrame implements RunnerListener {
editMenuUpdatable.add(action);
menu.add(item);
item = new JMenuItem("Move Selected Lines Up");
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_UP, InputEvent.ALT_DOWN_MASK));
item.addActionListener(e -> handleMoveLines(true));
menu.add(item);
item = new JMenuItem("Move Selected Lines Down");
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, InputEvent.ALT_DOWN_MASK));
item.addActionListener(e -> handleMoveLines(false));
menu.add(item);
// Update copy/cut state on selection/de-selection
menu.addMenuListener(new MenuListener() {
// UndoAction and RedoAction do this for themselves.
@@ -1865,6 +1876,7 @@ public abstract class Editor extends JFrame implements RunnerListener {
}
public void handleIndent() {
handleIndentOutdent(true);
}
@@ -1918,6 +1930,84 @@ public abstract class Editor extends JFrame implements RunnerListener {
stopCompoundEdit();
sketch.setModified(true);
}
/**
* Moves the selected lines up or down in the text editor.
*
* <p>If {@code moveUp} is true, the selected lines are moved up. If false, they move down.</p>
* <p>This method ensures proper selection updates and handles edge cases like moving
* the first or last line.</p>
*
* @param moveUp {@code true} to move the selection up, {@code false} to move it down.
*/
public void handleMoveLines(boolean moveUp) {
startCompoundEdit();
int startLine = textarea.getSelectionStartLine();
int stopLine = textarea.getSelectionStopLine();
// Adjust selection if the last line isn't fully selected
if (startLine != stopLine &&
textarea.getSelectionStop() == textarea.getLineStartOffset(stopLine)) {
stopLine--;
}
int replacedLine = moveUp ? startLine - 1 : stopLine + 1;
if (replacedLine < 0 || replacedLine >= textarea.getLineCount()) {
stopCompoundEdit();
return;
}
final String source = textarea.getText(); // Get full text from textarea
int replaceStart = textarea.getLineStartOffset(replacedLine);
int replaceEnd = textarea.getLineStopOffset(replacedLine);
if (replaceEnd > source.length()) {
replaceEnd = source.length();
}
int selectionStart = textarea.getLineStartOffset(startLine);
int selectionEnd = textarea.getLineStopOffset(stopLine);
if (selectionEnd > source.length()) {
selectionEnd = source.length();
}
String replacedText = source.substring(replaceStart, replaceEnd);
String selectedText = source.substring(selectionStart, selectionEnd);
if (replacedLine == textarea.getLineCount() - 1) {
replacedText += "\n";
selectedText = selectedText.substring(0, Math.max(0, selectedText.length() - 1));
} else if (stopLine == textarea.getLineCount() - 1) {
selectedText += "\n";
replacedText = replacedText.substring(0, Math.max(0, replacedText.length() - 1));
}
int newSelectionStart, newSelectionEnd;
if (moveUp) {
textarea.select(selectionStart, selectionEnd);
textarea.setSelectedText(replacedText); // Use setSelectedText()
textarea.select(replaceStart, replaceEnd);
textarea.setSelectedText(selectedText);
newSelectionStart = textarea.getLineStartOffset(startLine - 1);
newSelectionEnd = textarea.getLineStopOffset(stopLine - 1);
} else {
textarea.select(replaceStart, replaceEnd);
textarea.setSelectedText(selectedText);
textarea.select(selectionStart, selectionEnd);
textarea.setSelectedText(replacedText);
newSelectionStart = textarea.getLineStartOffset(startLine + 1);
newSelectionEnd = stopLine + 1 < textarea.getLineCount()
? Math.min(textarea.getLineStopOffset(stopLine + 1), source.length())
: textarea.getLineStopOffset(stopLine); // Prevent out-of-bounds
}
textarea.select(newSelectionStart, newSelectionEnd);
stopCompoundEdit();
}
static public boolean checkParen(char[] array, int index, int stop) {