public void testFoldRegionCollapsing() throws Exception {
String text =
"class Test {\n"
+ " public void foo() {\n"
+ " System.out.println(\"test\");\n"
+ " }\n"
+ "}";
init(40, text);
final FoldingModel foldingModel = myEditor.getFoldingModel();
assertEmpty(foldingModel.getAllFoldRegions());
final int startOffset = text.indexOf('{');
final int endOffset = text.indexOf('}') + 1;
VisualPosition foldStartPosition = myEditor.offsetToVisualPosition(startOffset);
addFoldRegion(startOffset, endOffset, "...");
final FoldRegion foldRegion = getFoldRegion(startOffset);
assertNotNull(foldRegion);
assertTrue(foldRegion.isExpanded());
toggleFoldRegionState(foldRegion, false);
// Expecting that all offsets that belong to collapsed fold region point to the region's start.
assertEquals(foldStartPosition, myEditor.offsetToVisualPosition(startOffset + 5));
}
public void testFoldRegionsUpdate() throws IOException {
String text =
"import java.util.List;\n"
+ "import java.util.ArrayList;\n"
+ "\n"
+ "class Test {\n"
+ "}";
init(40, text);
final int foldStartOffset = "import".length() + 1;
int foldEndOffset = text.indexOf("class") - 2;
addCollapsedFoldRegion(foldStartOffset, foldEndOffset, "...");
// Simulate addition of the new import that modifies existing fold region.
myEditor.getDocument().insertString(foldEndOffset, "\nimport java.util.Date;\n");
final FoldingModel foldingModel = myEditor.getFoldingModel();
foldingModel.runBatchFoldingOperation(
new Runnable() {
@Override
public void run() {
FoldRegion oldFoldRegion = getFoldRegion(foldStartOffset);
assertNotNull(oldFoldRegion);
foldingModel.removeFoldRegion(oldFoldRegion);
int newFoldEndOffset = myEditor.getDocument().getText().indexOf("class") - 2;
FoldRegion newFoldRegion =
foldingModel.addFoldRegion(foldStartOffset, newFoldEndOffset, "...");
assertNotNull(newFoldRegion);
newFoldRegion.setExpanded(false);
}
});
CodeFoldingManager.getInstance(getProject()).updateFoldRegions(myEditor);
assertEquals(
new VisualPosition(2, 0), myEditor.logicalToVisualPosition(new LogicalPosition(5, 0)));
}
private void updateCursorHighlighting(boolean scroll) {
hideBalloon();
if (myCursorHighlighter != null) {
HighlightManager.getInstance(mySearchResults.getProject())
.removeSegmentHighlighter(mySearchResults.getEditor(), myCursorHighlighter);
myCursorHighlighter = null;
}
final FindResult cursor = mySearchResults.getCursor();
Editor editor = mySearchResults.getEditor();
SelectionModel selection = editor.getSelectionModel();
if (cursor != null) {
Set<RangeHighlighter> dummy = new HashSet<RangeHighlighter>();
highlightRange(
cursor, new TextAttributes(null, null, Color.BLACK, EffectType.ROUNDED_BOX, 0), dummy);
if (!dummy.isEmpty()) {
myCursorHighlighter = dummy.iterator().next();
}
if (scroll) {
if (mySearchResults.getFindModel().isGlobal()) {
FoldingModel foldingModel = editor.getFoldingModel();
final FoldRegion[] allRegions = editor.getFoldingModel().getAllFoldRegions();
foldingModel.runBatchFoldingOperation(
new Runnable() {
@Override
public void run() {
for (FoldRegion region : allRegions) {
if (!region.isValid()) continue;
if (cursor.intersects(TextRange.create(region))) {
region.setExpanded(true);
}
}
}
});
selection.setSelection(cursor.getStartOffset(), cursor.getEndOffset());
editor.getCaretModel().moveToOffset(cursor.getEndOffset());
editor.getScrollingModel().scrollToCaret(ScrollType.CENTER);
} else {
if (!SearchResults.insideVisibleArea(editor, cursor)) {
LogicalPosition pos = editor.offsetToLogicalPosition(cursor.getStartOffset());
editor.getScrollingModel().scrollTo(pos, ScrollType.CENTER);
}
}
}
editor
.getScrollingModel()
.runActionOnScrollingFinished(
new Runnable() {
@Override
public void run() {
showReplacementPreview();
}
});
}
}
/** @return total number of soft wrap-introduced new visual lines */
public int getSoftWrapsIntroducedLinesNumber() {
if (!isSoftWrappingEnabled()) {
return 0;
}
int result = 0;
FoldingModel foldingModel = myEditor.getFoldingModel();
for (SoftWrap softWrap : myStorage.getSoftWraps()) {
if (!foldingModel.isOffsetCollapsed(softWrap.getStart())) {
result++; // Assuming that soft wrap has single line feed all the time
}
}
return result;
}
@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 static FoldRegion addFoldRegion(
@NotNull Editor editor,
final int startOffset,
final int endOffset,
final String placeholder,
final boolean collapse) {
final FoldingModel foldingModel = editor.getFoldingModel();
final Ref<FoldRegion> ref = new Ref<FoldRegion>();
foldingModel.runBatchFoldingOperation(
new Runnable() {
@Override
public void run() {
FoldRegion region = foldingModel.addFoldRegion(startOffset, endOffset, placeholder);
assertNotNull(region);
region.setExpanded(!collapse);
ref.set(region);
}
});
return ref.get();
}
@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);
}
}
}
public void navigate(int injectedOffset) {
if (myAction.isShowInBalloon()) {
final JComponent component = myAction.createBalloonComponent(myNewFile);
if (component != null) {
final Balloon balloon =
JBPopupFactory.getInstance()
.createBalloonBuilder(component)
.setShadow(true)
.setAnimationCycle(0)
.setHideOnClickOutside(true)
.setHideOnKeyOutside(true)
.setHideOnAction(false)
.setFillColor(UIUtil.getControlColor())
.createBalloon();
new AnAction() {
@Override
public void actionPerformed(AnActionEvent e) {
balloon.hide();
}
}.registerCustomShortcutSet(CommonShortcuts.ESCAPE, component);
Disposer.register(myNewFile.getProject(), balloon);
final Balloon.Position position = QuickEditAction.getBalloonPosition(myEditor);
RelativePoint point = JBPopupFactory.getInstance().guessBestPopupLocation(myEditor);
if (position == Balloon.Position.above) {
final Point p = point.getPoint();
point =
new RelativePoint(
point.getComponent(), new Point(p.x, p.y - myEditor.getLineHeight()));
}
balloon.show(point, position);
}
} else {
final FileEditorManagerEx fileEditorManager = FileEditorManagerEx.getInstanceEx(myProject);
final FileEditor[] editors = fileEditorManager.getEditors(myNewVirtualFile);
if (editors.length == 0) {
final EditorWindow curWindow = fileEditorManager.getCurrentWindow();
mySplittedWindow =
curWindow.split(SwingConstants.HORIZONTAL, false, myNewVirtualFile, true);
}
Editor editor =
fileEditorManager.openTextEditor(
new OpenFileDescriptor(myProject, myNewVirtualFile, injectedOffset), true);
// fold missing values
if (editor != null) {
editor.putUserData(QuickEditAction.QUICK_EDIT_HANDLER, this);
final FoldingModel foldingModel = editor.getFoldingModel();
foldingModel.runBatchFoldingOperation(
() -> {
for (RangeMarker o :
ContainerUtil.reverse(((DocumentEx) myNewDocument).getGuardedBlocks())) {
String replacement = o.getUserData(REPLACEMENT_KEY);
if (StringUtil.isEmpty(replacement)) continue;
FoldRegion region =
foldingModel.addFoldRegion(o.getStartOffset(), o.getEndOffset(), replacement);
if (region != null) region.setExpanded(false);
}
});
}
SwingUtilities.invokeLater(
() -> myEditor.getScrollingModel().scrollToCaret(ScrollType.MAKE_VISIBLE));
}
}