private boolean paintPlaceholderText(Graphics2D g) {
CharSequence hintText = myEditor.getPlaceholder();
EditorComponentImpl editorComponent = myEditor.getContentComponent();
if (myDocument.getTextLength() > 0
|| hintText == null
|| hintText.length() == 0
|| KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner() == editorComponent
&& !myEditor.getShowPlaceholderWhenFocused()) {
return false;
}
hintText =
SwingUtilities.layoutCompoundLabel(
g.getFontMetrics(),
hintText.toString(),
null,
0,
0,
0,
0,
editorComponent.getBounds(),
new Rectangle(),
new Rectangle(),
0);
g.setColor(myEditor.getFoldingModel().getPlaceholderAttributes().getForegroundColor());
g.setFont(myEditor.getColorsScheme().getFont(EditorFontType.PLAIN));
g.drawString(hintText.toString(), 0, myView.getAscent());
return true;
}
/**
* We know that there are problems with incremental soft wraps cache update at the moment. Hence,
* we may implement full cache reconstruction when the problem is encountered in order to avoid
* customer annoyance.
*
* <p>However, the problems still should be fixed, hence, we report them only if dedicated flag is
* set.
*
* <p>Current method encapsulates the logic mentioned above.
*
* @param task command object that which execution may trigger incremental update of update soft
* wraps cache
*/
@SuppressWarnings({"UseOfArchaicSystemPropertyAccessors"})
private void executeSafely(SoftWrapAwareTask task) {
try {
task.run(true);
} catch (Throwable e) {
if (Boolean.getBoolean(DEBUG_PROPERTY_NAME)
|| ApplicationManager.getApplication().isUnitTestMode()) {
String info = myEditor.dumpState();
LOG.error(
String.format("Unexpected exception occurred during performing '%s'", task), e, info);
}
myEditor.getFoldingModel().rebuild();
myDataMapper.release();
myApplianceManager.reset();
myStorage.removeAll();
myApplianceManager.recalculateIfNecessary();
try {
task.run(true);
} catch (Throwable e1) {
String info = myEditor.dumpState();
LOG.error(
String.format("Can't perform %s even with complete soft wraps cache re-parsing", task),
e1,
info);
myEditor.getSettings().setUseSoftWraps(false);
task.run(false);
}
}
}
@Override
public boolean isVisible(SoftWrap softWrap) {
FoldingModel foldingModel = myEditor.getFoldingModel();
int start = softWrap.getStart();
if (foldingModel.isOffsetCollapsed(start)) {
return false;
}
// There is a possible case that soft wrap and collapsed folding region share the same offset,
// i.e. soft wrap is represented
// before the folding. We need to return 'true' in such situation. Hence, we check if offset
// just before the soft wrap
// is collapsed as well.
return start <= 0 || !foldingModel.isOffsetCollapsed(start - 1);
}
public void moveToOffset(int offset, boolean locateBeforeSoftWrap) {
assertIsDispatchThread();
validateCallContext();
moveToLogicalPosition(myEditor.offsetToLogicalPosition(offset), locateBeforeSoftWrap);
if (!ignoreWrongMoves
&& !myEditor
.offsetToLogicalPosition(myOffset)
.equals(myEditor.offsetToLogicalPosition(offset))) {
LOG.error(
"caret moved to wrong offset. Requested:"
+ offset
+ " but actual:"
+ myOffset
+ ". Soft wraps data: "
+ myEditor.getSoftWrapModel()
+ ", folding data: "
+ myEditor.getFoldingModel());
}
}
private void paintHighlighterAfterEndOfLine(Graphics2D g, RangeHighlighterEx highlighter) {
if (!highlighter.isAfterEndOfLine()) {
return;
}
int startOffset = highlighter.getStartOffset();
int lineEndOffset = myDocument.getLineEndOffset(myDocument.getLineNumber(startOffset));
if (myEditor.getFoldingModel().isOffsetCollapsed(lineEndOffset)) return;
Point lineEnd = myView.offsetToXY(lineEndOffset, true, false);
int x = lineEnd.x;
int y = lineEnd.y;
TextAttributes attributes = highlighter.getTextAttributes();
paintBackground(g, attributes, x, y, myView.getPlainSpaceWidth());
if (attributes != null
&& hasTextEffect(attributes.getEffectColor(), attributes.getEffectType())) {
paintTextEffect(
g,
x,
x + myView.getPlainSpaceWidth() - 1,
y + myView.getAscent(),
attributes.getEffectColor(),
attributes.getEffectType());
}
}
public FoldingOrNewLineGaps(EditorImpl editor) {
this(
editor.getDocument().getCharsSequence(),
new RangeIterator.FoldingGaps(editor.getFoldingModel()));
}
private TextAttributes getFoldRegionAttributes(FoldRegion foldRegion) {
TextAttributes foldAttributes = myEditor.getFoldingModel().getPlaceholderAttributes();
TextAttributes selectionAttributes =
isSelected(foldRegion) ? myEditor.getSelectionModel().getTextAttributes() : null;
return mergeAttributes(selectionAttributes, foldAttributes);
}
private void moveToLogicalPosition(LogicalPosition pos, boolean locateBeforeSoftWrap) {
assertIsDispatchThread();
myDesiredX = -1;
validateCallContext();
int column = pos.column;
int line = pos.line;
int softWrapLinesBefore = pos.softWrapLinesBeforeCurrentLogicalLine;
int softWrapLinesCurrent = pos.softWrapLinesOnCurrentLogicalLine;
int softWrapColumns = pos.softWrapColumnDiff;
Document doc = myEditor.getDocument();
if (column < 0) {
column = 0;
softWrapColumns = 0;
}
if (line < 0) {
line = 0;
softWrapLinesBefore = 0;
softWrapLinesCurrent = 0;
}
int lineCount = doc.getLineCount();
if (lineCount == 0) {
line = 0;
} else if (line > lineCount - 1) {
line = lineCount - 1;
softWrapLinesBefore = 0;
softWrapLinesCurrent = 0;
}
EditorSettings editorSettings = myEditor.getSettings();
if (!editorSettings.isVirtualSpace()
&& line < lineCount
&& !myEditor.getSelectionModel().hasBlockSelection()) {
int lineEndOffset = doc.getLineEndOffset(line);
int lineEndColumnNumber = myEditor.offsetToLogicalPosition(lineEndOffset).column;
if (column > lineEndColumnNumber) {
column = lineEndColumnNumber;
if (softWrapColumns != 0) {
softWrapColumns -= column - lineEndColumnNumber;
}
}
}
((FoldingModelImpl) myEditor.getFoldingModel()).flushCaretPosition();
VerticalInfo oldInfo = myCaretInfo;
LogicalPosition oldCaretPosition = myLogicalCaret;
LogicalPosition logicalPositionToUse;
if (pos.visualPositionAware) {
logicalPositionToUse =
new LogicalPosition(
line,
column,
softWrapLinesBefore,
softWrapLinesCurrent,
softWrapColumns,
pos.foldedLines,
pos.foldingColumnDiff);
} else {
logicalPositionToUse = new LogicalPosition(line, column);
}
setCurrentLogicalCaret(logicalPositionToUse);
final int offset = myEditor.logicalPositionToOffset(myLogicalCaret);
FoldRegion collapsedAt = myEditor.getFoldingModel().getCollapsedRegionAtOffset(offset);
if (collapsedAt != null && offset > collapsedAt.getStartOffset()) {
Runnable runnable =
new Runnable() {
public void run() {
FoldRegion[] allCollapsedAt =
((FoldingModelImpl) myEditor.getFoldingModel()).fetchCollapsedAt(offset);
for (FoldRegion foldRange : allCollapsedAt) {
foldRange.setExpanded(true);
}
}
};
myEditor.getFoldingModel().runBatchFoldingOperation(runnable);
}
myEditor.setLastColumnNumber(myLogicalCaret.column);
myVisibleCaret = myEditor.logicalToVisualPosition(myLogicalCaret);
myOffset = myEditor.logicalPositionToOffset(myLogicalCaret);
LOG.assertTrue(myOffset >= 0 && myOffset <= myEditor.getDocument().getTextLength());
myVisualLineStart =
myEditor.logicalPositionToOffset(
myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line, 0)));
myVisualLineEnd =
myEditor.logicalPositionToOffset(
myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line + 1, 0)));
myEditor.updateCaretCursor();
requestRepaint(oldInfo);
if (locateBeforeSoftWrap && SoftWrapHelper.isCaretAfterSoftWrap(myEditor)) {
int lineToUse = myVisibleCaret.line - 1;
if (lineToUse >= 0) {
moveToVisualPosition(
new VisualPosition(
lineToUse, EditorUtil.getLastVisualLineColumnNumber(myEditor, lineToUse)));
return;
}
}
if (!oldCaretPosition.toVisualPosition().equals(myLogicalCaret.toVisualPosition())) {
CaretEvent event = new CaretEvent(myEditor, oldCaretPosition, myLogicalCaret);
for (CaretListener listener : myCaretListeners) {
listener.caretPositionChanged(event);
}
}
}
public void moveToVisualPosition(@NotNull VisualPosition pos) {
assertIsDispatchThread();
validateCallContext();
myDesiredX = -1;
int column = pos.column;
int line = pos.line;
if (column < 0) column = 0;
if (line < 0) line = 0;
int lastLine = myEditor.getVisibleLineCount() - 1;
if (lastLine <= 0) {
lastLine = 0;
}
if (line > lastLine) {
line = lastLine;
}
EditorSettings editorSettings = myEditor.getSettings();
if (!editorSettings.isVirtualSpace() && line <= lastLine) {
int lineEndColumn = EditorUtil.getLastVisualLineColumnNumber(myEditor, line);
if (column > lineEndColumn) {
column = lineEndColumn;
}
if (column < 0 && line > 0) {
line--;
column = EditorUtil.getLastVisualLineColumnNumber(myEditor, line);
}
}
myVisibleCaret = new VisualPosition(line, column);
VerticalInfo oldInfo = myCaretInfo;
LogicalPosition oldPosition = myLogicalCaret;
setCurrentLogicalCaret(myEditor.visualToLogicalPosition(myVisibleCaret));
myOffset = myEditor.logicalPositionToOffset(myLogicalCaret);
LOG.assertTrue(myOffset >= 0 && myOffset <= myEditor.getDocument().getTextLength());
myVisualLineStart =
myEditor.logicalPositionToOffset(
myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line, 0)));
myVisualLineEnd =
myEditor.logicalPositionToOffset(
myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line + 1, 0)));
((FoldingModelImpl) myEditor.getFoldingModel()).flushCaretPosition();
myEditor.setLastColumnNumber(myVisibleCaret.column);
myEditor.updateCaretCursor();
requestRepaint(oldInfo);
if (oldPosition.column != myLogicalCaret.column || oldPosition.line != myLogicalCaret.line) {
CaretEvent event = new CaretEvent(myEditor, oldPosition, myLogicalCaret);
for (CaretListener listener : myCaretListeners) {
listener.caretPositionChanged(event);
}
}
}