private VerticalInfo createVerticalInfo(LogicalPosition position) {
Document document = myEditor.getDocument();
int logicalLine = position.line;
if (logicalLine >= document.getLineCount()) {
logicalLine = Math.max(0, document.getLineCount() - 1);
}
int startOffset = document.getLineStartOffset(logicalLine);
int endOffset = document.getLineEndOffset(logicalLine);
// There is a possible case that active logical line is represented on multiple lines due to
// soft wraps processing.
// We want to highlight those visual lines as 'active' then, so, we calculate 'y' position for
// the logical line start
// and height in accordance with the number of occupied visual lines.
VisualPosition visualPosition =
myEditor.offsetToVisualPosition(document.getLineStartOffset(logicalLine));
int y = myEditor.visualPositionToXY(visualPosition).y;
int lineHeight = myEditor.getLineHeight();
int height = lineHeight;
List<? extends SoftWrap> softWraps =
myEditor.getSoftWrapModel().getSoftWrapsForRange(startOffset, endOffset);
for (SoftWrap softWrap : softWraps) {
height += StringUtil.countNewLines(softWrap.getText()) * lineHeight;
}
return new VerticalInfo(y, height);
}
public void testPastingInsideSelection() throws IOException {
String text =
"this is line number 0\n"
+ "this is line number 1\n"
+ "this is line number 2\n"
+ "this is line number 3\n"
+ "this is line number 4\n"
+ "this is line number 5\n"
+ "this is line number 6\n"
+ "this is the last line";
init(100, text);
int lineToSelect = 4;
myEditor.getCaretModel().moveToOffset(text.indexOf("number " + lineToSelect));
Document document = myEditor.getDocument();
int startOffset = document.getLineStartOffset(lineToSelect);
int endOffset = document.getLineEndOffset(lineToSelect);
myEditor.getSelectionModel().setSelection(startOffset, endOffset);
VisualPosition positionBefore =
myEditor.offsetToVisualPosition(document.getLineStartOffset(lineToSelect + 1));
List<SoftWrap> softWrapsBefore = new ArrayList<>(getSoftWrapModel().getRegisteredSoftWraps());
copy();
paste();
assertEquals(
positionBefore,
myEditor.offsetToVisualPosition(document.getLineStartOffset(lineToSelect + 1)));
assertEquals(softWrapsBefore, getSoftWrapModel().getRegisteredSoftWraps());
}
@SuppressWarnings("ForLoopThatDoesntUseLoopVariable")
private static void indentPlainTextBlock(
final Document document, final int startOffset, final int endOffset, final int indentLevel) {
CharSequence chars = document.getCharsSequence();
int spaceEnd = CharArrayUtil.shiftForward(chars, startOffset, " \t");
int line = document.getLineNumber(startOffset);
if (spaceEnd > endOffset
|| indentLevel <= 0
|| line >= document.getLineCount() - 1
|| chars.charAt(spaceEnd) == '\n') {
return;
}
int linesToAdjustIndent = 0;
for (int i = line + 1; i < document.getLineCount(); i++) {
if (document.getLineStartOffset(i) >= endOffset) {
break;
}
linesToAdjustIndent++;
}
String indentString = StringUtil.repeatSymbol(' ', indentLevel);
for (; linesToAdjustIndent > 0; linesToAdjustIndent--) {
int lineStartOffset = document.getLineStartOffset(++line);
document.insertString(lineStartOffset, indentString);
}
}
public void testRemoveHugeLogicalLineThatLaysBeforeSoftWrappedLines() throws IOException {
String text =
"short line\n"
+ "this is a long line that is expected to be soft wrapped into more than one or even two visual lines\n"
+ "1. just a line that is long enough to be soft wrapped\n"
+ "2. just a line that is long enough to be soft wrapped\n"
+ "3. just a line that is long enough to be soft wrapped\n"
+ "4. just a line that is long enough to be soft wrapped";
init(15, text);
Document document = myEditor.getDocument();
int start = document.getLineStartOffset(1);
int end = document.getLineEndOffset(1) + 1;
int visualLinesToRemove = getSoftWrapModel().getSoftWrapsForLine(1).size() + 1;
List<VisualPosition> positionsBefore = new ArrayList<VisualPosition>();
for (int i = end; i < text.length(); i++) {
positionsBefore.add(myEditor.offsetToVisualPosition(i));
}
Collections.reverse(positionsBefore);
myEditor.getSelectionModel().setSelection(start, end);
delete();
// Check that all remembered positions are just shifted to expected number of visual lines.
for (int i = start; i < document.getTextLength(); i++) {
VisualPosition position = positionsBefore.remove(positionsBefore.size() - 1);
assertEquals(
new VisualPosition(position.line - visualLinesToRemove, position.column),
myEditor.offsetToVisualPosition(i));
}
}
private void doIndentCommenting(Commenter commenter) {
CharSequence chars = myDocument.getCharsSequence();
final FileType fileType = myFile.getFileType();
Indent minIndent =
computeMinIndent(myStartLine, myEndLine, chars, myCodeStyleManager, fileType);
for (int line = myEndLine; line >= myStartLine; line--) {
int lineStart = myDocument.getLineStartOffset(line);
int offset = lineStart;
final StringBuilder buffer = StringBuilderSpinAllocator.alloc();
try {
while (true) {
String space = buffer.toString();
Indent indent = myCodeStyleManager.getIndent(space, fileType);
if (indent.isGreaterThan(minIndent) || indent.equals(minIndent)) break;
char c = chars.charAt(offset);
if (c != ' ' && c != '\t') {
String newSpace = myCodeStyleManager.fillIndent(minIndent, fileType);
myDocument.replaceString(lineStart, offset, newSpace);
offset = lineStart + newSpace.length();
break;
}
buffer.append(c);
offset++;
}
} finally {
StringBuilderSpinAllocator.dispose(buffer);
}
commentLine(line, offset, commenter);
}
}
public CaretModelImpl(EditorImpl editor) {
myEditor = editor;
myLogicalCaret = new LogicalPosition(0, 0);
myVisibleCaret = new VisualPosition(0, 0);
myCaretInfo = new VerticalInfo(0, 0);
myOffset = 0;
myVisualLineStart = 0;
Document doc = editor.getDocument();
myVisualLineEnd =
doc.getLineCount() > 1
? doc.getLineStartOffset(1)
: doc.getLineCount() == 0 ? 0 : doc.getLineEndOffset(0);
DocumentBulkUpdateListener bulkUpdateListener =
new DocumentBulkUpdateListener() {
@Override
public void updateStarted(Document doc) {
if (doc != myEditor.getDocument()) return;
savedBeforeBulkCaretMarker = doc.createRangeMarker(myOffset, myOffset);
}
@Override
public void updateFinished(Document doc) {
if (doc != myEditor.getDocument() || myIsInUpdate) return;
if (savedBeforeBulkCaretMarker != null && savedBeforeBulkCaretMarker.isValid()) {
moveToOffset(savedBeforeBulkCaretMarker.getStartOffset());
}
releaseBulkCaretMarker();
}
};
ApplicationManager.getApplication()
.getMessageBus()
.connect(this)
.subscribe(DocumentBulkUpdateListener.TOPIC, bulkUpdateListener);
}
private boolean isLineEmpty(final int line) {
final CharSequence chars = myDocument.getCharsSequence();
int start = myDocument.getLineStartOffset(line);
int end = Math.min(myDocument.getLineEndOffset(line), myDocument.getTextLength() - 1);
for (int i = start; i <= end; i++) {
if (!Character.isWhitespace(chars.charAt(i))) return false;
}
return true;
}
private static void indentLinesIn(
final Editor editor,
final PsiFile file,
final Document document,
final Project project,
RangeMarker range) {
final CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project);
int line1 = editor.offsetToLogicalPosition(range.getStartOffset()).line;
int line2 = editor.offsetToLogicalPosition(range.getEndOffset()).line;
while (!lineContainsNonSpaces(document, line1) && line1 < line2) line1++;
while (!lineContainsNonSpaces(document, line2) && line1 < line2) line2--;
final FileViewProvider provider = file.getViewProvider();
PsiFile rootToAdjustIndentIn = provider.getPsi(provider.getBaseLanguage());
codeStyleManager.adjustLineIndent(
rootToAdjustIndentIn,
new TextRange(document.getLineStartOffset(line1), document.getLineStartOffset(line2)));
}
private boolean isBlankLine(int line, CharSequence chars) {
Document document = myDocument;
if (document == null) {
return true;
}
int startOffset = document.getLineStartOffset(line);
int endOffset = document.getLineEndOffset(line);
return CharArrayUtil.shiftForward(chars, startOffset, endOffset, " \t")
>= myDocument.getLineEndOffset(line);
}
private static boolean lineContainsNonSpaces(final Document document, final int line) {
if (line >= document.getLineCount()) {
return false;
}
int lineStartOffset = document.getLineStartOffset(line);
int lineEndOffset = document.getLineEndOffset(line);
@NonNls
String text =
document.getCharsSequence().subSequence(lineStartOffset, lineEndOffset).toString();
return text.trim().length() != 0;
}
private int getCommentStart(int line) {
int offset = myDocument.getLineStartOffset(line);
CharSequence chars = myDocument.getCharsSequence();
offset = CharArrayUtil.shiftForward(chars, offset, " \t");
final Commenter commenter = findCommenter(line);
if (commenter == null) return -1;
String prefix = commenter.getLineCommentPrefix();
if (prefix == null) prefix = commenter.getBlockCommentPrefix();
if (prefix == null) return -1;
return CharArrayUtil.regionMatches(chars, offset, prefix) ? offset : -1;
}
@Nullable
private static String getPropertyName(@NotNull Document document, int line) {
int startOffset = document.getLineStartOffset(line);
int endOffset =
StringUtil.indexOf(
document.getCharsSequence(), '=', startOffset, document.getLineEndOffset(line));
if (endOffset <= startOffset) {
return null;
}
String propertyName =
document.getCharsSequence().subSequence(startOffset, endOffset).toString().trim();
return propertyName.isEmpty() ? null : propertyName;
}
private static void indentLinesIn(
final Editor editor,
final PsiFile file,
final Document document,
final Project project,
RangeMarker range) {
final CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project);
int line1 = editor.offsetToLogicalPosition(range.getStartOffset()).line;
int line2 = editor.offsetToLogicalPosition(range.getEndOffset()).line;
/* if (PsiUtil.isInJspFile(file)) {
// This version is slow because of each moved line cause commit
// and right now we unable to fix JSP formatter quickly
// TODO: remove this code
for (int line = line1; line <= line2; line++) {
if (lineContainsNonSpaces(document, line)) {
int lineStart = document.getLineStartOffset(line);
codeStyleManager.adjustLineIndent(document, lineStart);
}
}
}
else {*/
while (!lineContainsNonSpaces(document, line1) && line1 <= line2) line1++;
while (!lineContainsNonSpaces(document, line2) && line2 > line1) line2--;
try {
final FileViewProvider provider = file.getViewProvider();
PsiFile rootToAdjustIndentIn = provider.getPsi(provider.getBaseLanguage());
codeStyleManager.adjustLineIndent(
rootToAdjustIndentIn,
new TextRange(document.getLineStartOffset(line1), document.getLineStartOffset(line2)));
} catch (IncorrectOperationException ex) {
throw new RuntimeException(ex);
}
/* } */
}
@Override
@NotNull
public List<? extends SoftWrap> getSoftWrapsForLine(int documentLine) {
if (!isSoftWrappingEnabled() || documentLine < 0) {
return Collections.emptyList();
}
Document document = myEditor.getDocument();
int start = document.getLineStartOffset(documentLine);
int end = document.getLineEndOffset(documentLine);
return getSoftWrapsForRange(
start,
end
+ 1 /* it's theoretically possible that soft wrap is registered just before the line feed,
* hence, we add '1' here assuming that end line offset points to line feed symbol */);
}
private boolean isLineCommented(
final int line, final CharSequence chars, final Commenter commenter) {
boolean commented;
int lineEndForBlockCommenting = -1;
int lineStart = myDocument.getLineStartOffset(line);
lineStart = CharArrayUtil.shiftForward(chars, lineStart, " \t");
if (commenter instanceof SelfManagingCommenter) {
final SelfManagingCommenter selfManagingCommenter = (SelfManagingCommenter) commenter;
commented =
selfManagingCommenter.isLineCommented(
line, lineStart, myDocument, myCommenterStateMap.get(selfManagingCommenter));
} else {
String prefix = commenter.getLineCommentPrefix();
if (prefix != null) {
commented =
CharArrayUtil.regionMatches(chars, lineStart, prefix)
|| prefix.endsWith(" ")
&& CharArrayUtil.regionMatches(chars, lineStart, prefix.trim() + "\n");
} else {
prefix = commenter.getBlockCommentPrefix();
String suffix = commenter.getBlockCommentSuffix();
final int textLength = myDocument.getTextLength();
lineEndForBlockCommenting = myDocument.getLineEndOffset(line);
if (lineEndForBlockCommenting == textLength) {
final int shifted = CharArrayUtil.shiftBackward(chars, textLength - 1, " \t");
if (shifted < textLength - 1) lineEndForBlockCommenting = shifted;
} else {
lineEndForBlockCommenting =
CharArrayUtil.shiftBackward(chars, lineEndForBlockCommenting, " \t");
}
commented =
lineStart == lineEndForBlockCommenting && myStartLine != myEndLine
|| CharArrayUtil.regionMatches(chars, lineStart, prefix)
&& CharArrayUtil.regionMatches(
chars, lineEndForBlockCommenting - suffix.length(), suffix);
}
}
if (commented) {
myStartOffsets[line - myStartLine] = lineStart;
myEndOffsets[line - myStartLine] = lineEndForBlockCommenting;
}
return commented;
}
@Nullable
private Commenter findCommenter(final int line) {
final FileType fileType = myFile.getFileType();
if (fileType instanceof AbstractFileType) {
return ((AbstractFileType) fileType).getCommenter();
}
int lineStartOffset = myDocument.getLineStartOffset(line);
int lineEndOffset = myDocument.getLineEndOffset(line) - 1;
final CharSequence charSequence = myDocument.getCharsSequence();
lineStartOffset = CharArrayUtil.shiftForward(charSequence, lineStartOffset, " \t");
lineEndOffset =
CharArrayUtil.shiftBackward(charSequence, lineEndOffset < 0 ? 0 : lineEndOffset, " \t");
final Language lineStartLanguage = PsiUtilBase.getLanguageAtOffset(myFile, lineStartOffset);
final Language lineEndLanguage = PsiUtilBase.getLanguageAtOffset(myFile, lineEndOffset);
return CommentByBlockCommentHandler.getCommenter(
myFile, myEditor, lineStartLanguage, lineEndLanguage);
}
private static void logInitial(
@NotNull Editor editor,
@NotNull int[] startOffsets,
@NotNull int[] endOffsets,
int indentSymbolsToStrip,
int firstLineStartOffset) {
if (!Registry.is("editor.richcopy.debug")) {
return;
}
StringBuilder buffer = new StringBuilder();
Document document = editor.getDocument();
CharSequence text = document.getCharsSequence();
for (int i = 0; i < startOffsets.length; i++) {
int start = startOffsets[i];
int lineStart = document.getLineStartOffset(document.getLineNumber(start));
int end = endOffsets[i];
int lineEnd = document.getLineEndOffset(document.getLineNumber(end));
buffer
.append(" region #")
.append(i)
.append(": ")
.append(start)
.append('-')
.append(end)
.append(", text at range ")
.append(lineStart)
.append('-')
.append(lineEnd)
.append(": \n'")
.append(text.subSequence(lineStart, lineEnd))
.append("'\n");
}
if (buffer.length() > 0) {
buffer.setLength(buffer.length() - 1);
}
LOG.info(
String.format(
"Preparing syntax-aware text. Given: %s selection, indent symbols to strip=%d, first line start offset=%d, selected text:%n%s",
startOffsets.length > 1 ? "block" : "regular",
indentSymbolsToStrip,
firstLineStartOffset,
buffer));
}
public static String getNewText(PsiElement elt) {
Project project = elt.getProject();
PsiFile psiFile = getContainingFile(elt);
final Document doc = PsiDocumentManager.getInstance(project).getDocument(psiFile);
if (doc == null) return null;
final ImplementationTextSelectioner implementationTextSelectioner =
LanguageImplementationTextSelectioner.INSTANCE.forLanguage(elt.getLanguage());
int start = implementationTextSelectioner.getTextStartOffset(elt);
final int end = implementationTextSelectioner.getTextEndOffset(elt);
final int lineStart = doc.getLineStartOffset(doc.getLineNumber(start));
final int lineEnd =
end < doc.getTextLength()
? doc.getLineEndOffset(doc.getLineNumber(end))
: doc.getTextLength();
return doc.getCharsSequence().subSequence(lineStart, lineEnd).toString();
}
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 Indent computeMinIndent(
int line1,
int line2,
CharSequence chars,
CodeStyleManager codeStyleManager,
FileType fileType) {
Indent minIndent = CommentUtil.getMinLineIndent(myProject, myDocument, line1, line2, fileType);
if (line1 > 0) {
int commentOffset = getCommentStart(line1 - 1);
if (commentOffset >= 0) {
int lineStart = myDocument.getLineStartOffset(line1 - 1);
String space = chars.subSequence(lineStart, commentOffset).toString();
Indent indent = codeStyleManager.getIndent(space, fileType);
minIndent = minIndent != null ? indent.min(minIndent) : indent;
}
}
if (minIndent == null) {
minIndent = codeStyleManager.zeroIndent();
}
return minIndent;
}
public static String calcStringToFillVirtualSpace(Editor editor, int afterLineEnd) {
final Project project = editor.getProject();
StringBuilder buf = new StringBuilder();
final Document doc = editor.getDocument();
final int caretOffset = editor.getCaretModel().getOffset();
boolean atLineStart =
caretOffset >= doc.getTextLength()
|| doc.getLineStartOffset(doc.getLineNumber(caretOffset)) == caretOffset;
if (atLineStart && project != null) {
int offset = editor.getCaretModel().getOffset();
PsiDocumentManager.getInstance(project)
.commitDocument(doc); // Sync document and PSI before formatting.
String properIndent =
offset >= doc.getTextLength()
? ""
: CodeStyleFacade.getInstance(project).getLineIndent(doc, offset);
if (properIndent != null) {
int tabSize = editor.getSettings().getTabSize(project);
for (int i = 0; i < properIndent.length(); i++) {
if (properIndent.charAt(i) == ' ') {
afterLineEnd--;
} else if (properIndent.charAt(i) == '\t') {
if (afterLineEnd < tabSize) {
break;
}
afterLineEnd -= tabSize;
}
buf.append(properIndent.charAt(i));
if (afterLineEnd == 0) break;
}
}
}
for (int i = 0; i < afterLineEnd; i++) {
buf.append(' ');
}
return buf.toString();
}
private static Pair<Integer /* start offset to use */, Integer /* indent symbols to strip */>
calcIndentSymbolsToStrip(@NotNull Document document, int startOffset, int endOffset) {
int startLine = document.getLineNumber(startOffset);
int endLine = document.getLineNumber(endOffset);
CharSequence text = document.getCharsSequence();
int maximumCommonIndent = Integer.MAX_VALUE;
int firstLineStart = startOffset;
int firstLineEnd = startOffset;
for (int line = startLine; line <= endLine; line++) {
int lineStartOffset = document.getLineStartOffset(line);
int lineEndOffset = document.getLineEndOffset(line);
if (line == startLine) {
firstLineStart = lineStartOffset;
firstLineEnd = lineEndOffset;
}
int nonWsOffset = lineEndOffset;
for (int i = lineStartOffset;
i < lineEndOffset && (i - lineStartOffset) < maximumCommonIndent && i < endOffset;
i++) {
char c = text.charAt(i);
if (c != ' ' && c != '\t') {
nonWsOffset = i;
break;
}
}
if (nonWsOffset >= lineEndOffset) {
continue; // Blank line
}
int indent = nonWsOffset - lineStartOffset;
maximumCommonIndent = Math.min(maximumCommonIndent, indent);
if (maximumCommonIndent == 0) {
break;
}
}
int startOffsetToUse =
Math.min(firstLineEnd, Math.max(startOffset, firstLineStart + maximumCommonIndent));
return Pair.create(startOffsetToUse, maximumCommonIndent);
}
@Override
@SuppressWarnings({"AssignmentToForLoopParameter"})
public void paint(
@NotNull Editor editor, @NotNull RangeHighlighter highlighter, @NotNull Graphics g) {
int startOffset = highlighter.getStartOffset();
final Document doc = highlighter.getDocument();
if (startOffset >= doc.getTextLength()) return;
final int endOffset = highlighter.getEndOffset();
final int endLine = doc.getLineNumber(endOffset);
int off;
int startLine = doc.getLineNumber(startOffset);
IndentGuideDescriptor descriptor =
editor.getIndentsModel().getDescriptor(startLine, endLine);
final CharSequence chars = doc.getCharsSequence();
do {
int start = doc.getLineStartOffset(startLine);
int end = doc.getLineEndOffset(startLine);
off = CharArrayUtil.shiftForward(chars, start, end, " \t");
startLine--;
} while (startLine > 1 && off < doc.getTextLength() && chars.charAt(off) == '\n');
final VisualPosition startPosition = editor.offsetToVisualPosition(off);
int indentColumn = startPosition.column;
// It's considered that indent guide can cross not only white space but comments, javadocs
// etc. Hence, there is a possible
// case that the first indent guide line is, say, single-line comment where comment
// symbols ('//') are located at the first
// visual column. We need to calculate correct indent guide column then.
int lineShift = 1;
if (indentColumn <= 0 && descriptor != null) {
indentColumn = descriptor.indentLevel;
lineShift = 0;
}
if (indentColumn <= 0) return;
final FoldingModel foldingModel = editor.getFoldingModel();
if (foldingModel.isOffsetCollapsed(off)) return;
final FoldRegion headerRegion =
foldingModel.getCollapsedRegionAtOffset(doc.getLineEndOffset(doc.getLineNumber(off)));
final FoldRegion tailRegion =
foldingModel.getCollapsedRegionAtOffset(
doc.getLineStartOffset(doc.getLineNumber(endOffset)));
if (tailRegion != null && tailRegion == headerRegion) return;
final boolean selected;
final IndentGuideDescriptor guide = editor.getIndentsModel().getCaretIndentGuide();
if (guide != null) {
final CaretModel caretModel = editor.getCaretModel();
final int caretOffset = caretModel.getOffset();
selected =
caretOffset >= off
&& caretOffset < endOffset
&& caretModel.getLogicalPosition().column == indentColumn;
} else {
selected = false;
}
Point start =
editor.visualPositionToXY(
new VisualPosition(startPosition.line + lineShift, indentColumn));
final VisualPosition endPosition = editor.offsetToVisualPosition(endOffset);
Point end =
editor.visualPositionToXY(new VisualPosition(endPosition.line, endPosition.column));
int maxY = end.y;
if (endPosition.line == editor.offsetToVisualPosition(doc.getTextLength()).line) {
maxY += editor.getLineHeight();
}
Rectangle clip = g.getClipBounds();
if (clip != null) {
if (clip.y >= maxY || clip.y + clip.height <= start.y) {
return;
}
maxY = Math.min(maxY, clip.y + clip.height);
}
final EditorColorsScheme scheme = editor.getColorsScheme();
g.setColor(
selected
? scheme.getColor(EditorColors.SELECTED_INDENT_GUIDE_COLOR)
: scheme.getColor(EditorColors.INDENT_GUIDE_COLOR));
// There is a possible case that indent line intersects soft wrap-introduced text.
// Example:
// this is a long line <soft-wrap>
// that| is soft-wrapped
// |
// | <- vertical indent
//
// Also it's possible that no additional intersections are added because of soft wrap:
// this is a long line <soft-wrap>
// | that is soft-wrapped
// |
// | <- vertical indent
// We want to use the following approach then:
// 1. Show only active indent if it crosses soft wrap-introduced text;
// 2. Show indent as is if it doesn't intersect with soft wrap-introduced text;
if (selected) {
g.drawLine(start.x + 2, start.y, start.x + 2, maxY);
} else {
int y = start.y;
int newY = start.y;
SoftWrapModel softWrapModel = editor.getSoftWrapModel();
int lineHeight = editor.getLineHeight();
for (int i = Math.max(0, startLine + lineShift); i < endLine && newY < maxY; i++) {
List<? extends SoftWrap> softWraps = softWrapModel.getSoftWrapsForLine(i);
int logicalLineHeight = softWraps.size() * lineHeight;
if (i > startLine + lineShift) {
logicalLineHeight +=
lineHeight; // We assume that initial 'y' value points just below the target
// line.
}
if (!softWraps.isEmpty() && softWraps.get(0).getIndentInColumns() < indentColumn) {
if (y < newY
|| i
> startLine
+ lineShift) { // There is a possible case that soft wrap is located on
// indent start line.
g.drawLine(start.x + 2, y, start.x + 2, newY + lineHeight);
}
newY += logicalLineHeight;
y = newY;
} else {
newY += logicalLineHeight;
}
FoldRegion foldRegion =
foldingModel.getCollapsedRegionAtOffset(doc.getLineEndOffset(i));
if (foldRegion != null && foldRegion.getEndOffset() < doc.getTextLength()) {
i = doc.getLineNumber(foldRegion.getEndOffset());
}
}
if (y < maxY) {
g.drawLine(start.x + 2, y, start.x + 2, maxY);
}
}
}
@Override
public void run() {
CaretModel caretModel = myEditor.getCaretModel();
try {
final CharSequence chars = myDocument.getCharsSequence();
int i = CharArrayUtil.shiftBackwardUntil(chars, myOffset - 1, LINE_SEPARATOR) - 1;
i = CharArrayUtil.shiftBackwardUntil(chars, i, LINE_SEPARATOR) + 1;
if (i < 0) i = 0;
int lineStart = CharArrayUtil.shiftForward(chars, i, " \t");
CodeDocumentationUtil.CommentContext commentContext =
CodeDocumentationUtil.tryParseCommentContext(myFile, chars, myOffset, lineStart);
PsiDocumentManager psiDocumentManager = PsiDocumentManager.getInstance(getProject());
if (commentContext.docStart) {
PsiElement element = myFile.findElementAt(commentContext.lineStart);
final String text = element.getText();
final PsiElement parent = element.getParent();
if (text.equals(commentContext.commenter.getDocumentationCommentPrefix())
&& isDocComment(parent, commentContext.commenter)
|| text.startsWith(commentContext.commenter.getDocumentationCommentPrefix())
&& element instanceof PsiComment) {
PsiComment comment =
isDocComment(parent, commentContext.commenter)
? (PsiComment) parent
: (PsiComment) element;
int commentEnd = comment.getTextRange().getEndOffset();
if (myOffset >= commentEnd) {
commentContext.docStart = false;
} else {
if (isCommentComplete(comment, commentContext.commenter, myEditor)) {
if (myOffset >= commentEnd) {
commentContext.docAsterisk = false;
commentContext.docStart = false;
} else {
commentContext.docAsterisk = true;
commentContext.docStart = false;
}
} else {
generateJavadoc(commentContext.commenter);
}
}
} else {
commentContext.docStart = false;
}
} else if (commentContext.cStyleStart) {
PsiElement element = myFile.findElementAt(commentContext.lineStart);
if (element instanceof PsiComment
&& commentContext.commenter.getBlockCommentTokenType()
== ((PsiComment) element).getTokenType()) {
final PsiComment comment = (PsiComment) element;
int commentEnd = comment.getTextRange().getEndOffset();
if (myOffset >= commentEnd && myOffset < myFile.getTextRange().getEndOffset()) {
commentContext.docStart = false;
} else {
if (isCommentComplete(comment, commentContext.commenter, myEditor)) {
if (myOffset >= commentEnd) {
commentContext.docAsterisk = false;
commentContext.docStart = false;
} else {
commentContext.docAsterisk = true;
commentContext.docStart = false;
}
} else {
final int currentEndOfLine = CharArrayUtil.shiftForwardUntil(chars, myOffset, "\n");
myDocument.insertString(
currentEndOfLine, " " + commentContext.commenter.getBlockCommentSuffix());
int lstart = CharArrayUtil.shiftBackwardUntil(chars, myOffset, "\n");
myDocument.insertString(currentEndOfLine, chars.subSequence(lstart, myOffset));
psiDocumentManager.commitDocument(myDocument);
}
}
} else {
commentContext.docStart = false;
}
}
String indentInsideJavadoc = null;
if (myOffset < myDocument.getTextLength()) {
final int line = myDocument.getLineNumber(myOffset);
if (line > 0 && (commentContext.docAsterisk || commentContext.docStart)) {
indentInsideJavadoc =
CodeDocumentationUtil.getIndentInsideJavadoc(
myDocument, myDocument.getLineStartOffset(line - 1));
}
}
if (commentContext.docAsterisk) {
commentContext.docAsterisk =
insertDocAsterisk(
commentContext.lineStart,
commentContext.docAsterisk,
!StringUtil.isEmpty(indentInsideJavadoc),
commentContext.commenter);
}
boolean docIndentApplied = false;
CodeInsightSettings codeInsightSettings = CodeInsightSettings.getInstance();
if (codeInsightSettings.SMART_INDENT_ON_ENTER
|| myForceIndent
|| commentContext.docStart
|| commentContext.docAsterisk
|| commentContext.slashSlash) {
final CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(getProject());
myOffset = codeStyleManager.adjustLineIndent(myFile, myOffset);
psiDocumentManager.commitAllDocuments();
if (!StringUtil.isEmpty(indentInsideJavadoc) && myOffset < myDocument.getTextLength()) {
myDocument.insertString(myOffset + 1, indentInsideJavadoc);
myOffset += indentInsideJavadoc.length();
docIndentApplied = true;
}
if (myForceIndent && indentInsideJavadoc != null) {
int indentSize =
CodeStyleSettingsManager.getSettings(myProject).getIndentSize(myFile.getFileType());
myDocument.insertString(myOffset + 1, StringUtil.repeatSymbol(' ', indentSize));
myCaretAdvance += indentSize;
}
}
if ((commentContext.docAsterisk || commentContext.docStart || commentContext.slashSlash)
&& !docIndentApplied) {
if (myInsertSpace) {
if (myOffset == myDocument.getTextLength()) {
myDocument.insertString(myOffset, " ");
}
myDocument.insertString(myOffset + 1, " ");
}
final char c = myDocument.getCharsSequence().charAt(myOffset);
if (c != '\n') {
myOffset += 1;
}
}
if ((commentContext.docAsterisk || commentContext.slashSlash) && !commentContext.docStart) {
myCaretAdvance +=
commentContext.slashSlash
? commentContext.commenter.getLineCommentPrefix().length()
: 1;
}
} catch (IncorrectOperationException e) {
LOG.error(e);
}
myOffset = Math.min(myOffset, myDocument.getTextLength());
caretModel.moveToOffset(myOffset);
myEditor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
myEditor.getSelectionModel().removeSelection();
if (myCaretAdvance != 0) {
LogicalPosition caretPosition = caretModel.getLogicalPosition();
LogicalPosition pos =
new LogicalPosition(caretPosition.line, caretPosition.column + myCaretAdvance);
caretModel.moveToLogicalPosition(pos);
}
}
private boolean insertDocAsterisk(
int lineStart,
boolean docAsterisk,
boolean previousLineIndentUsed,
CodeDocumentationAwareCommenter commenter) {
PsiElement atLineStart = myFile.findElementAt(lineStart);
if (atLineStart == null) return false;
final String linePrefix = commenter.getDocumentationCommentLinePrefix();
final String docPrefix = commenter.getDocumentationCommentPrefix();
final String text = atLineStart.getText();
final TextRange textRange = atLineStart.getTextRange();
if (text.equals(linePrefix)
|| text.equals(docPrefix)
|| docPrefix != null
&& text.regionMatches(
lineStart - textRange.getStartOffset(), docPrefix, 0, docPrefix.length())
|| linePrefix != null
&& text.regionMatches(
lineStart - textRange.getStartOffset(), linePrefix, 0, linePrefix.length())) {
PsiElement element = myFile.findElementAt(myOffset);
if (element == null) return false;
PsiComment comment =
element instanceof PsiComment
? (PsiComment) element
: PsiTreeUtil.getParentOfType(element, PsiComment.class, false);
if (comment != null) {
int commentEnd = comment.getTextRange().getEndOffset();
if (myOffset >= commentEnd) {
docAsterisk = false;
} else {
removeTrailingSpaces(myDocument, myOffset);
String toInsert =
previousLineIndentUsed
? "*"
: CodeDocumentationUtil.createDocCommentLine("", getProject(), commenter);
myDocument.insertString(myOffset, toInsert);
PsiDocumentManager.getInstance(getProject()).commitAllDocuments();
}
} else {
docAsterisk = false;
}
} else if (linePrefix != null
&& atLineStart instanceof PsiComment
&& ((PsiComment) atLineStart).getTokenType() == commenter.getBlockCommentTokenType()) {
// Check if C-Style comment already uses asterisks.
boolean usesAstersk = false;
int commentLine = myDocument.getLineNumber(textRange.getStartOffset());
if (commentLine < myDocument.getLineCount() - 1 && textRange.getEndOffset() >= myOffset) {
int nextLineOffset = myDocument.getLineStartOffset(commentLine + 1);
if (nextLineOffset < textRange.getEndOffset()) {
final CharSequence chars = myDocument.getCharsSequence();
nextLineOffset = CharArrayUtil.shiftForward(chars, nextLineOffset, " \t");
usesAstersk = CharArrayUtil.regionMatches(chars, nextLineOffset, linePrefix);
}
}
if (usesAstersk) {
removeTrailingSpaces(myDocument, myOffset);
myDocument.insertString(myOffset, linePrefix + " ");
PsiDocumentManager.getInstance(getProject()).commitAllDocuments();
}
docAsterisk = usesAstersk;
} else {
docAsterisk = false;
}
return docAsterisk;
}
private static void indentBlockWithFormatter(
Project project, Document document, int startOffset, int endOffset, PsiFile file) {
// Algorithm: the main idea is to process the first line of the pasted block, adjust its indent
// if necessary, calculate indent
// adjustment string and apply to each line of the pasted block starting from the second one.
//
// We differentiate the following possible states here:
// --- pasted block doesn't start new line, i.e. there are non-white space symbols before it
// at the first line.
// Example:
// old content [pasted line 1
// pasted line 2]
// Indent adjustment string is just the first line indent then.
//
// --- pasted block starts with empty line(s)
// Example:
// old content [
// pasted line 1
// pasted line 2]
// We parse existing indents of the pasted block then, adjust its first non-blank line via
// formatter and adjust indent
// of subsequent pasted lines in order to preserve old indentation.
//
// --- pasted block is located at the new line and starts with white space symbols.
// Example:
// [ pasted line 1
// pasted line 2]
// We parse existing indents of the pasted block then, adjust its first line via formatter
// and adjust indent of the pasted lines
// starting from the second one in order to preserve old indentation.
//
// --- pasted block is located at the new line but doesn't start with white space symbols.
// Example:
// [pasted line 1
// pasted line 2]
// We adjust the first line via formatter then and apply first line's indent to all
// subsequent pasted lines.
CharSequence chars = document.getCharsSequence();
final int firstLine = document.getLineNumber(startOffset);
final int firstLineStart = document.getLineStartOffset(firstLine);
// There is a possible case that we paste block that ends with new line that is empty or
// contains only white space symbols.
// We want to preserve indent for the original document line where paste was performed.
// Example:
// Original:
// if (test) {
// <caret> }
//
// Pasting: 'int i = 1;\n'
// Expected:
// if (test) {
// int i = 1;
// }
boolean saveLastLineIndent = false;
for (int i = endOffset - 1; i >= startOffset; i--) {
final char c = chars.charAt(i);
if (c == '\n') {
saveLastLineIndent = true;
break;
}
if (c != ' ' && c != '\t') {
break;
}
}
final int lastLine;
if (saveLastLineIndent) {
lastLine = document.getLineNumber(endOffset) - 1;
// Remove white space symbols at the pasted text if any.
int start = document.getLineStartOffset(lastLine + 1);
if (start < endOffset) {
int i = CharArrayUtil.shiftForward(chars, start, " \t");
if (i > start) {
i = Math.min(i, endOffset);
document.deleteString(start, i);
}
}
// Insert white space from the start line of the pasted block.
int indentToKeepEndOffset =
Math.min(startOffset, CharArrayUtil.shiftForward(chars, firstLineStart, " \t"));
if (indentToKeepEndOffset > firstLineStart) {
document.insertString(start, chars.subSequence(firstLineStart, indentToKeepEndOffset));
}
} else {
lastLine = document.getLineNumber(endOffset);
}
final int i = CharArrayUtil.shiftBackward(chars, startOffset - 1, " \t");
// Handle a situation when pasted block doesn't start a new line.
if (chars.charAt(startOffset) != '\n' && i > 0 && chars.charAt(i) != '\n') {
int firstNonWsOffset = CharArrayUtil.shiftForward(chars, firstLineStart, " \t");
if (firstNonWsOffset > firstLineStart) {
CharSequence toInsert = chars.subSequence(firstLineStart, firstNonWsOffset);
for (int line = firstLine + 1; line <= lastLine; line++) {
document.insertString(document.getLineStartOffset(line), toInsert);
}
}
return;
}
// Sync document and PSI for correct formatting processing.
PsiDocumentManager.getInstance(project).commitAllDocuments();
if (file == null) {
return;
}
CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project);
final int j = CharArrayUtil.shiftForward(chars, startOffset, " \t\n");
if (j >= endOffset) {
// Pasted text contains white space/line feed symbols only, do nothing.
return;
}
final int anchorLine = document.getLineNumber(j);
final int anchorLineStart = document.getLineStartOffset(anchorLine);
codeStyleManager.adjustLineIndent(file, j);
// Handle situation when pasted block starts with non-white space symbols.
if (anchorLine == firstLine && j == startOffset) {
int indentOffset = CharArrayUtil.shiftForward(chars, firstLineStart, " \t");
if (indentOffset > firstLineStart) {
CharSequence toInsert = chars.subSequence(firstLineStart, indentOffset);
for (int line = firstLine + 1; line <= lastLine; line++) {
document.insertString(document.getLineStartOffset(line), toInsert);
}
}
return;
}
// Handle situation when pasted block starts from white space symbols. Assume that the pasted
// text started at the line start,
// i.e. correct indentation level is stored at the blocks structure.
final int firstNonWsOffset = CharArrayUtil.shiftForward(chars, anchorLineStart, " \t");
final int diff = firstNonWsOffset - j;
if (diff == 0) {
return;
}
if (diff > 0) {
CharSequence toInsert = chars.subSequence(anchorLineStart, anchorLineStart + diff);
for (int line = anchorLine + 1; line <= lastLine; line++) {
document.insertString(document.getLineStartOffset(line), toInsert);
}
return;
}
// We've pasted text to the non-first column and exact white space between the line start and
// caret position on the moment of paste
// has been removed by formatter during 'adjust line indent'
// Example:
// copied text:
// ' line1
// line2'
// after paste:
// line start -> ' I line1
// line2' (I - caret position during 'paste')
// formatter removed white space between the line start and caret position, so, current
// document state is:
// ' line1
// line2'
if (anchorLine == firstLine && -diff == startOffset - firstLineStart) {
return;
}
if (anchorLine != firstLine || -diff > startOffset - firstLineStart) {
final int desiredSymbolsToRemove;
if (anchorLine == firstLine) {
desiredSymbolsToRemove = -diff - (startOffset - firstLineStart);
} else {
desiredSymbolsToRemove = -diff;
}
for (int line = anchorLine + 1; line <= lastLine; line++) {
int currentLineStart = document.getLineStartOffset(line);
int currentLineIndentOffset = CharArrayUtil.shiftForward(chars, currentLineStart, " \t");
int symbolsToRemove =
Math.min(currentLineIndentOffset - currentLineStart, desiredSymbolsToRemove);
if (symbolsToRemove > 0) {
document.deleteString(currentLineStart, currentLineStart + symbolsToRemove);
}
}
} else {
CharSequence toInsert = chars.subSequence(anchorLineStart, diff + startOffset);
for (int line = anchorLine + 1; line <= lastLine; line++) {
document.insertString(document.getLineStartOffset(line), toInsert);
}
}
}
private void paintBorderEffect(
Graphics2D g,
ClipDetector clipDetector,
int startOffset,
int endOffset,
TextAttributes attributes) {
if (!clipDetector.rangeCanBeVisible(startOffset, endOffset)) return;
int startLine = myDocument.getLineNumber(startOffset);
int endLine = myDocument.getLineNumber(endOffset);
if (startLine + 1 == endLine
&& startOffset == myDocument.getLineStartOffset(startLine)
&& endOffset == myDocument.getLineStartOffset(endLine)) {
// special case of line highlighters
endLine--;
endOffset = myDocument.getLineEndOffset(endLine);
}
boolean rounded = attributes.getEffectType() == EffectType.ROUNDED_BOX;
int lineHeight = myView.getLineHeight() - 1;
g.setColor(attributes.getEffectColor());
VisualPosition startPosition = myView.offsetToVisualPosition(startOffset, true, false);
VisualPosition endPosition = myView.offsetToVisualPosition(endOffset, false, true);
if (startPosition.line == endPosition.line) {
int y = myView.visualLineToY(startPosition.line);
TFloatArrayList ranges = adjustedLogicalRangeToVisualRanges(startOffset, endOffset);
for (int i = 0; i < ranges.size() - 1; i += 2) {
int startX = (int) ranges.get(i);
int endX = (int) ranges.get(i + 1);
if (rounded) {
UIUtil.drawRectPickedOut(g, startX, y, endX - startX, lineHeight);
} else {
g.drawRect(startX, y, endX - startX, lineHeight);
}
}
} else {
int maxWidth = myView.getMaxWidthInLineRange(startPosition.line, endPosition.line) - 1;
TFloatArrayList leadingRanges =
adjustedLogicalRangeToVisualRanges(
startOffset,
myView.visualPositionToOffset(
new VisualPosition(startPosition.line, Integer.MAX_VALUE, true)));
TFloatArrayList trailingRanges =
adjustedLogicalRangeToVisualRanges(
myView.visualPositionToOffset(new VisualPosition(endPosition.line, 0)), endOffset);
if (!leadingRanges.isEmpty() && !trailingRanges.isEmpty()) {
boolean containsInnerLines = endPosition.line > startPosition.line + 1;
int leadingTopY = myView.visualLineToY(startPosition.line);
int leadingBottomY = leadingTopY + lineHeight;
int trailingTopY = myView.visualLineToY(endPosition.line);
int trailingBottomY = trailingTopY + lineHeight;
float start = 0;
float end = 0;
float leftGap = leadingRanges.get(0) - (containsInnerLines ? 0 : trailingRanges.get(0));
int adjustY =
leftGap == 0 ? 2 : leftGap > 0 ? 1 : 0; // avoiding 1-pixel gap between aligned lines
for (int i = 0; i < leadingRanges.size() - 1; i += 2) {
start = leadingRanges.get(i);
end = leadingRanges.get(i + 1);
if (i > 0) {
drawLine(g, leadingRanges.get(i - 1), leadingBottomY, start, leadingBottomY, rounded);
}
drawLine(g, start, leadingBottomY + (i == 0 ? adjustY : 0), start, leadingTopY, rounded);
if ((i + 2) < leadingRanges.size()) {
drawLine(g, start, leadingTopY, end, leadingTopY, rounded);
drawLine(g, end, leadingTopY, end, leadingBottomY, rounded);
}
}
end = Math.max(end, maxWidth);
drawLine(g, start, leadingTopY, end, leadingTopY, rounded);
drawLine(g, end, leadingTopY, end, trailingTopY - 1, rounded);
float targetX = trailingRanges.get(trailingRanges.size() - 1);
drawLine(g, end, trailingTopY - 1, targetX, trailingTopY - 1, rounded);
adjustY =
end == targetX
? -2
: -1; // for lastX == targetX we need to avoid a gap when rounding is used
for (int i = trailingRanges.size() - 2; i >= 0; i -= 2) {
start = trailingRanges.get(i);
end = trailingRanges.get(i + 1);
drawLine(g, end, trailingTopY + (i == 0 ? adjustY : 0), end, trailingBottomY, rounded);
drawLine(g, end, trailingBottomY, start, trailingBottomY, rounded);
drawLine(g, start, trailingBottomY, start, trailingTopY, rounded);
if (i > 0) {
drawLine(g, start, trailingTopY, trailingRanges.get(i - 1), trailingTopY, rounded);
}
}
float lastX = start;
if (containsInnerLines) {
if (start > 0) {
drawLine(g, start, trailingTopY, start, trailingTopY - 1, rounded);
drawLine(g, start, trailingTopY - 1, 0, trailingTopY - 1, rounded);
drawLine(g, 0, trailingTopY - 1, 0, leadingBottomY + 1, rounded);
} else {
drawLine(g, start, trailingTopY, 0, leadingBottomY + 1, rounded);
}
lastX = 0;
}
targetX = leadingRanges.get(0);
if (lastX < targetX) {
drawLine(g, lastX, leadingBottomY + 1, targetX, leadingBottomY + 1, rounded);
} else {
drawLine(g, lastX, leadingBottomY + 1, lastX, leadingBottomY, rounded);
drawLine(g, lastX, leadingBottomY, targetX, leadingBottomY, rounded);
}
}
}
}
public void doWrapLongLinesIfNecessary(
@NotNull final Editor editor,
@NotNull final Project project,
@NotNull Document document,
int startOffset,
int endOffset) {
// Normalization.
int startOffsetToUse = Math.min(document.getTextLength(), Math.max(0, startOffset));
int endOffsetToUse = Math.min(document.getTextLength(), Math.max(0, endOffset));
LineWrapPositionStrategy strategy = LanguageLineWrapPositionStrategy.INSTANCE.forEditor(editor);
CharSequence text = document.getCharsSequence();
int startLine = document.getLineNumber(startOffsetToUse);
int endLine = document.getLineNumber(Math.max(0, endOffsetToUse - 1));
int maxLine = Math.min(document.getLineCount(), endLine + 1);
int tabSize = EditorUtil.getTabSize(editor);
if (tabSize <= 0) {
tabSize = 1;
}
int spaceSize = EditorUtil.getSpaceWidth(Font.PLAIN, editor);
int[] shifts = new int[2];
// shifts[0] - lines shift.
// shift[1] - offset shift.
for (int line = startLine; line < maxLine; line++) {
int startLineOffset = document.getLineStartOffset(line);
int endLineOffset = document.getLineEndOffset(line);
final int preferredWrapPosition =
calculatePreferredWrapPosition(
editor, text, tabSize, spaceSize, startLineOffset, endLineOffset, endOffsetToUse);
if (preferredWrapPosition < 0 || preferredWrapPosition >= endLineOffset) {
continue;
}
if (preferredWrapPosition >= endOffsetToUse) {
return;
}
// We know that current line exceeds right margin if control flow reaches this place, so, wrap
// it.
int wrapOffset =
strategy.calculateWrapPosition(
document,
editor.getProject(),
Math.max(startLineOffset, startOffsetToUse),
Math.min(endLineOffset, endOffsetToUse),
preferredWrapPosition,
false,
false);
if (wrapOffset < 0 // No appropriate wrap position is found.
// No point in splitting line when its left part contains only white spaces, example:
// line start -> | | <- right margin
// | aaaaaaaaaaaaaaaa|aaaaaaaaaaaaaaaaaaaa() <- don't want to wrap this
// line even if it exceeds right margin
|| CharArrayUtil.shiftBackward(text, startLineOffset, wrapOffset - 1, " \t")
< startLineOffset) {
continue;
}
// Move caret to the target position and emulate pressing <enter>.
editor.getCaretModel().moveToOffset(wrapOffset);
emulateEnter(editor, project, shifts);
// We know that number of lines is just increased, hence, update the data accordingly.
maxLine += shifts[0];
endOffsetToUse += shifts[1];
}
}
public final void move(Editor editor, final PsiFile file) {
myMover.beforeMove(editor, myInfo, myIsDown);
final Document document = editor.getDocument();
final int start =
StatementUpDownMover.getLineStartSafeOffset(document, myInfo.toMove.startLine);
final int end = StatementUpDownMover.getLineStartSafeOffset(document, myInfo.toMove.endLine);
myInfo.range1 = document.createRangeMarker(start, end);
String textToInsert = document.getCharsSequence().subSequence(start, end).toString();
if (!StringUtil.endsWithChar(textToInsert, '\n')) textToInsert += '\n';
final int start2 = document.getLineStartOffset(myInfo.toMove2.startLine);
final int end2 = StatementUpDownMover.getLineStartSafeOffset(document, myInfo.toMove2.endLine);
String textToInsert2 = document.getCharsSequence().subSequence(start2, end2).toString();
if (!StringUtil.endsWithChar(textToInsert2, '\n')) textToInsert2 += '\n';
myInfo.range2 = document.createRangeMarker(start2, end2);
if (myInfo.range1.getStartOffset() < myInfo.range2.getStartOffset()) {
myInfo.range1.setGreedyToLeft(true);
myInfo.range1.setGreedyToRight(false);
myInfo.range2.setGreedyToLeft(true);
myInfo.range2.setGreedyToRight(true);
} else {
myInfo.range1.setGreedyToLeft(true);
myInfo.range1.setGreedyToRight(true);
myInfo.range2.setGreedyToLeft(true);
myInfo.range2.setGreedyToRight(false);
}
final CaretModel caretModel = editor.getCaretModel();
final int caretRelativePos = caretModel.getOffset() - start;
final SelectionModel selectionModel = editor.getSelectionModel();
final int selectionStart = selectionModel.getSelectionStart();
final int selectionEnd = selectionModel.getSelectionEnd();
final boolean hasSelection = selectionModel.hasSelection();
// to prevent flicker
caretModel.moveToOffset(0);
// There is a possible case that the user performs, say, method move. It's also possible that
// one (or both) of moved methods
// are folded. We want to preserve their states then. The problem is that folding processing is
// based on PSI element pointers
// and the pointers behave as following during move up/down:
// method1() {}
// method2() {}
// Pointer for the fold region from method1 points to 'method2()' now and vice versa (check
// range markers processing on
// document change for further information). I.e. information about fold regions statuses holds
// the data swapped for
// 'method1' and 'method2'. Hence, we want to apply correct 'collapsed' status.
FoldRegion topRegion = null;
FoldRegion bottomRegion = null;
for (FoldRegion foldRegion : editor.getFoldingModel().getAllFoldRegions()) {
if (!foldRegion.isValid()
|| (!contains(myInfo.range1, foldRegion) && !contains(myInfo.range2, foldRegion))) {
continue;
}
if (contains(myInfo.range1, foldRegion) && !contains(topRegion, foldRegion)) {
topRegion = foldRegion;
} else if (contains(myInfo.range2, foldRegion) && !contains(bottomRegion, foldRegion)) {
bottomRegion = foldRegion;
}
}
document.insertString(myInfo.range1.getStartOffset(), textToInsert2);
document.deleteString(
myInfo.range1.getStartOffset() + textToInsert2.length(), myInfo.range1.getEndOffset());
document.insertString(myInfo.range2.getStartOffset(), textToInsert);
int s = myInfo.range2.getStartOffset() + textToInsert.length();
int e = myInfo.range2.getEndOffset();
if (e > s) {
document.deleteString(s, e);
}
final Project project = file.getProject();
PsiDocumentManager.getInstance(project).commitAllDocuments();
// Swap fold regions status if necessary.
if (topRegion != null && bottomRegion != null) {
final FoldRegion finalTopRegion = topRegion;
final FoldRegion finalBottomRegion = bottomRegion;
editor
.getFoldingModel()
.runBatchFoldingOperation(
new Runnable() {
@Override
public void run() {
boolean topExpanded = finalTopRegion.isExpanded();
finalTopRegion.setExpanded(finalBottomRegion.isExpanded());
finalBottomRegion.setExpanded(topExpanded);
}
});
}
CodeFoldingManager.getInstance(project).allowFoldingOnCaretLine(editor);
if (hasSelection) {
restoreSelection(editor, selectionStart, selectionEnd, start, myInfo.range2.getStartOffset());
}
caretModel.moveToOffset(myInfo.range2.getStartOffset() + caretRelativePos);
if (myInfo.indentTarget) {
indentLinesIn(editor, file, document, project, myInfo.range2);
}
if (myInfo.indentSource) {
indentLinesIn(editor, file, document, project, myInfo.range1);
}
myMover.afterMove(editor, file, myInfo, myIsDown);
editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
}
public int getCaretOffset(Document document) {
return document.getLineStartOffset(position.line) + position.column;
}
