private boolean isInsideSoftWrap(@NotNull VisualPosition visual, boolean countBeforeSoftWrap) {
if (!isSoftWrappingEnabled()) {
return false;
}
SoftWrapModel model = myEditor.getSoftWrapModel();
if (!model.isSoftWrappingEnabled()) {
return false;
}
LogicalPosition logical = myEditor.visualToLogicalPosition(visual);
int offset = myEditor.logicalPositionToOffset(logical);
if (offset <= 0) {
// Never expect to be here, just a defensive programming.
return false;
}
SoftWrap softWrap = model.getSoftWrap(offset);
if (softWrap == null) {
return false;
}
// We consider visual positions that point after the last symbol before soft wrap and the first
// symbol after soft wrap to not
// belong to soft wrap-introduced virtual space.
VisualPosition visualAfterSoftWrap = myEditor.offsetToVisualPosition(offset);
if (visualAfterSoftWrap.line == visual.line && visualAfterSoftWrap.column <= visual.column) {
return false;
}
if (myEditor.myUseNewRendering) {
VisualPosition beforeSoftWrap = myEditor.offsetToVisualPosition(offset, true, true);
return visual.line > beforeSoftWrap.line
|| visual.column > beforeSoftWrap.column
|| visual.column == beforeSoftWrap.column && countBeforeSoftWrap;
} else {
VisualPosition visualBeforeSoftWrap = myEditor.offsetToVisualPosition(offset - 1);
int x = 0;
LogicalPosition logLineStart =
myEditor.visualToLogicalPosition(new VisualPosition(visualBeforeSoftWrap.line, 0));
if (logLineStart.softWrapLinesOnCurrentLogicalLine > 0) {
int offsetLineStart = myEditor.logicalPositionToOffset(logLineStart);
softWrap = model.getSoftWrap(offsetLineStart);
if (softWrap != null) {
x = softWrap.getIndentInPixels();
}
}
int width =
EditorUtil.textWidthInColumns(
myEditor, myEditor.getDocument().getCharsSequence(), offset - 1, offset, x);
int softWrapStartColumn = visualBeforeSoftWrap.column + width;
if (visual.line > visualBeforeSoftWrap.line) {
return true;
}
return countBeforeSoftWrap
? visual.column >= softWrapStartColumn
: visual.column > softWrapStartColumn;
}
}
public void documentChanged(DocumentEvent e) {
finishUpdate();
DocumentEventImpl event = (DocumentEventImpl) e;
final Document document = myEditor.getDocument();
boolean performSoftWrapAdjustment =
e.getNewLength() > 0 // We want to put caret just after the last added symbol
// There is a possible case that the user removes text just before the soft wrap. We
// want to keep caret
// on a visual line with soft wrap start then.
|| myEditor.getSoftWrapModel().getSoftWrap(e.getOffset()) != null;
if (event.isWholeTextReplaced()) {
int newLength = document.getTextLength();
if (myOffset == newLength - e.getNewLength() + e.getOldLength() || newLength == 0) {
moveToOffset(newLength, performSoftWrapAdjustment);
} else {
final int line;
try {
line = event.translateLineViaDiff(myLogicalCaret.line);
moveToLogicalPosition(
new LogicalPosition(line, myLogicalCaret.column), performSoftWrapAdjustment);
} catch (FilesTooBigForDiffException e1) {
LOG.info(e1);
moveToOffset(0);
}
}
} else {
if (document instanceof DocumentEx && ((DocumentEx) document).isInBulkUpdate()) return;
int startOffset = e.getOffset();
int oldEndOffset = startOffset + e.getOldLength();
int newOffset = myOffset;
if (myOffset > oldEndOffset || myOffset == oldEndOffset && needToShiftWhiteSpaces(e)) {
newOffset += e.getNewLength() - e.getOldLength();
} else if (myOffset >= startOffset && myOffset <= oldEndOffset) {
newOffset = Math.min(newOffset, startOffset + e.getNewLength());
}
newOffset = Math.min(newOffset, document.getTextLength());
// if (newOffset != myOffset) {
moveToOffset(newOffset, performSoftWrapAdjustment);
// }
// else {
// moveToVisualPosition(oldPosition);
// }
}
myVisualLineStart =
myEditor.logicalPositionToOffset(
myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line, 0)));
myVisualLineEnd =
myEditor.logicalPositionToOffset(
myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line + 1, 0)));
}
@NotNull
@Override
public LogicalPosition visualToLogicalPosition(@NotNull VisualPosition visual) {
if (myBulkUpdateInProgress || myUpdateInProgress || !prepareToMapping()) {
return myEditor.visualToLogicalPosition(visual, false);
}
myActive++;
try {
myVisualToLogicalTask.input = visual;
executeSafely(myVisualToLogicalTask);
return myVisualToLogicalTask.output;
} finally {
myActive--;
}
}
@Override
public int paint(
@NotNull Graphics g, @NotNull SoftWrapDrawingType drawingType, int x, int y, int lineHeight) {
if (!isSoftWrappingEnabled()) {
return 0;
}
if (!myEditor.getSettings().isAllSoftWrapsShown()) {
int visualLine = y / lineHeight;
LogicalPosition position =
myEditor.visualToLogicalPosition(new VisualPosition(visualLine, 0));
if (position.line != myEditor.getCaretModel().getLogicalPosition().line) {
return myPainter.getDrawingHorizontalOffset(g, drawingType, x, y, lineHeight);
}
}
return doPaint(g, drawingType, x, y, lineHeight);
}
private int yPositionToOffset(int y, boolean beginLine) {
if (myEditorScrollbarTop == -1 || myEditorTargetHeight == -1) {
recalcEditorDimensions();
}
final int safeY = Math.max(0, y - myEditorScrollbarTop);
VisualPosition visual;
if (myEditorSourceHeight < myEditorTargetHeight) {
visual = myEditor.xyToVisualPosition(new Point(0, safeY));
} else {
float fraction = Math.max(0, Math.min(1, safeY / (float) myEditorTargetHeight));
final int lineCount = myEditorSourceHeight / myEditor.getLineHeight();
visual = new VisualPosition((int) (fraction * lineCount), 0);
}
int line = myEditor.visualToLogicalPosition(visual).line;
Document document = myEditor.getDocument();
if (line < 0) return 0;
if (line >= document.getLineCount()) return document.getTextLength();
return beginLine ? document.getLineStartOffset(line) : document.getLineEndOffset(line);
}
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 moveCaretRelatively(
int columnShift,
int lineShift,
boolean withSelection,
boolean blockSelection,
boolean scrollToCaret) {
assertIsDispatchThread();
SelectionModel selectionModel = myEditor.getSelectionModel();
int selectionStart = selectionModel.getLeadSelectionOffset();
LogicalPosition blockSelectionStart =
selectionModel.hasBlockSelection() ? selectionModel.getBlockStart() : getLogicalPosition();
EditorSettings editorSettings = myEditor.getSettings();
VisualPosition visualCaret = getVisualPosition();
int desiredX = myDesiredX;
if (columnShift == 0) {
if (myDesiredX < 0) {
desiredX = myEditor.visualPositionToXY(visualCaret).x;
}
} else {
myDesiredX = desiredX = -1;
}
int newLineNumber = visualCaret.line + lineShift;
int newColumnNumber = visualCaret.column + columnShift;
if (desiredX >= 0 && !ApplicationManager.getApplication().isUnitTestMode()) {
newColumnNumber =
myEditor.xyToVisualPosition(
new Point(desiredX, Math.max(0, newLineNumber) * myEditor.getLineHeight()))
.column;
}
Document document = myEditor.getDocument();
if (!editorSettings.isVirtualSpace()
&& columnShift == 0
&& getLogicalPosition().softWrapLinesOnCurrentLogicalLine <= 0) {
newColumnNumber = myEditor.getLastColumnNumber();
} else if (!editorSettings.isVirtualSpace() && lineShift == 0 && columnShift == 1) {
int lastLine = document.getLineCount() - 1;
if (lastLine < 0) lastLine = 0;
if (EditorModificationUtil.calcAfterLineEnd(myEditor) >= 0
&& newLineNumber
< myEditor.logicalToVisualPosition(new LogicalPosition(lastLine, 0)).line) {
newColumnNumber = 0;
newLineNumber++;
}
} else if (!editorSettings.isVirtualSpace() && lineShift == 0 && columnShift == -1) {
if (newColumnNumber < 0 && newLineNumber > 0) {
newLineNumber--;
newColumnNumber = EditorUtil.getLastVisualLineColumnNumber(myEditor, newLineNumber);
}
}
if (newColumnNumber < 0) newColumnNumber = 0;
// There is a possible case that caret is located at the first line and user presses 'Shift+Up'.
// We want to select all text
// from the document start to the current caret position then. So, we have a dedicated flag for
// tracking that.
boolean selectToDocumentStart = false;
if (newLineNumber < 0) {
selectToDocumentStart = true;
newLineNumber = 0;
// We want to move caret to the first column if it's already located at the first line and
// 'Up' is pressed.
newColumnNumber = 0;
desiredX = -1;
}
VisualPosition pos = new VisualPosition(newLineNumber, newColumnNumber);
int lastColumnNumber = newColumnNumber;
if (!editorSettings.isCaretInsideTabs() && !myEditor.getSoftWrapModel().isInsideSoftWrap(pos)) {
LogicalPosition log =
myEditor.visualToLogicalPosition(new VisualPosition(newLineNumber, newColumnNumber));
int offset = myEditor.logicalPositionToOffset(log);
if (offset >= document.getTextLength()) {
int lastOffsetColumn = myEditor.offsetToVisualPosition(document.getTextLength()).column;
// We want to move caret to the last column if if it's located at the last line and 'Down'
// is pressed.
newColumnNumber = lastColumnNumber = Math.max(lastOffsetColumn, newColumnNumber);
desiredX = -1;
}
CharSequence text = document.getCharsSequence();
if (offset >= 0 && offset < document.getTextLength()) {
if (text.charAt(offset) == '\t' && (columnShift <= 0 || offset == myOffset)) {
if (columnShift <= 0) {
newColumnNumber = myEditor.offsetToVisualPosition(offset).column;
} else {
SoftWrap softWrap = myEditor.getSoftWrapModel().getSoftWrap(offset + 1);
// There is a possible case that tabulation symbol is the last document symbol
// represented on a visual line before
// soft wrap. We can't just use column from 'offset + 1' because it would point on a
// next visual line.
if (softWrap == null) {
newColumnNumber = myEditor.offsetToVisualPosition(offset + 1).column;
} else {
newColumnNumber = EditorUtil.getLastVisualLineColumnNumber(myEditor, newLineNumber);
}
}
}
}
}
pos = new VisualPosition(newLineNumber, newColumnNumber);
if (columnShift != 0 && lineShift == 0 && myEditor.getSoftWrapModel().isInsideSoftWrap(pos)) {
LogicalPosition logical = myEditor.visualToLogicalPosition(pos);
int softWrapOffset = myEditor.logicalPositionToOffset(logical);
if (columnShift >= 0) {
moveToOffset(softWrapOffset);
} else {
int line = myEditor.offsetToVisualLine(softWrapOffset - 1);
moveToVisualPosition(
new VisualPosition(line, EditorUtil.getLastVisualLineColumnNumber(myEditor, line)));
}
} else {
moveToVisualPosition(pos);
if (!editorSettings.isVirtualSpace() && columnShift == 0) {
myEditor.setLastColumnNumber(lastColumnNumber);
}
}
if (withSelection) {
if (blockSelection) {
selectionModel.setBlockSelection(blockSelectionStart, getLogicalPosition());
} else {
if (selectToDocumentStart) {
selectionModel.setSelection(selectionStart, 0);
} else if (pos.line >= myEditor.getVisibleLineCount()) {
if (selectionStart < document.getTextLength()) {
selectionModel.setSelection(selectionStart, document.getTextLength());
}
} else {
selectionModel.setSelection(selectionStart, getVisualPosition(), getOffset());
}
}
} else {
selectionModel.removeSelection();
}
if (scrollToCaret) {
myEditor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
}
if (desiredX >= 0) {
myDesiredX = desiredX;
}
EditorActionUtil.selectNonexpandableFold(myEditor);
}
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);
}
}
}
