public void testNonSmartHome() throws IOException {
String text =
" this is a string that starts with white space and is long enough to be soft-wrapped\n"
+ " this is a 'prefix' text before collapsed multi-line folding that is long enough to be soft-wrapped first fold line\n"
+ "second fold line";
init(30, text);
addCollapsedFoldRegion(text.indexOf("first fold line"), text.length(), "...");
List<? extends SoftWrap> softWraps = getSoftWrapModel().getRegisteredSoftWraps();
assertTrue(!softWraps.isEmpty());
CaretModel caretModel = myEditor.getCaretModel();
SoftWrap softWrap = softWraps.get(0);
// Test non-smart home
myEditor.getSettings().setSmartHome(false);
caretModel.moveToOffset(softWrap.getStart() + 1);
int visLine = caretModel.getVisualPosition().line;
home();
assertEquals(new VisualPosition(visLine, 0), caretModel.getVisualPosition());
caretModel.moveToOffset(text.length());
home();
visLine = caretModel.getVisualPosition().line;
assertEquals(new VisualPosition(visLine, 0), caretModel.getVisualPosition());
}
private static TIntHashSet collectSoftWrapStartOffsets(int documentLine) {
TIntHashSet result = new TIntHashSet();
for (SoftWrap softWrap : myEditor.getSoftWrapModel().getSoftWrapsForLine(documentLine)) {
result.add(softWrap.getStart());
}
return result;
}
public void testHomeProcessing() throws IOException {
String text =
"class Test {\n"
+ " public String s = \"this is a long string literal that is expected to be soft-wrapped into multiple visual lines\";\n"
+ "}";
init(30, text);
myEditor.getCaretModel().moveToOffset(text.indexOf("}") - 1);
List<? extends SoftWrap> softWraps =
new ArrayList<SoftWrap>(getSoftWrapModel().getRegisteredSoftWraps());
assertTrue(!softWraps.isEmpty());
CaretModel caretModel = myEditor.getCaretModel();
int expectedVisualLine = caretModel.getVisualPosition().line;
while (!softWraps.isEmpty()) {
SoftWrap softWrap = softWraps.get(softWraps.size() - 1);
int caretOffsetBefore = caretModel.getOffset();
home();
// Expecting the caret to be moved at the nearest soft wrap start offset.
int caretOffset = caretModel.getOffset();
assertTrue(caretOffset < caretOffsetBefore);
assertEquals(softWrap.getStart(), caretOffset);
assertEquals(
new VisualPosition(expectedVisualLine, softWrap.getIndentInColumns()),
caretModel.getVisualPosition());
// Expected that caret is moved to visual line start when it's located on soft wrap start
// offset at the moment.
home();
assertEquals(softWrap.getStart(), caretModel.getOffset());
assertEquals(new VisualPosition(expectedVisualLine, 0), caretModel.getVisualPosition());
softWraps.remove(softWraps.size() - 1);
expectedVisualLine--;
}
// Expecting caret to be located on the first non-white space symbol of non-soft wrapped line.
home();
assertEquals(text.indexOf("public"), caretModel.getOffset());
assertEquals(
new VisualPosition(expectedVisualLine, text.indexOf("public") - text.indexOf("{\n") - 2),
caretModel.getVisualPosition());
}
/** @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;
}
/**
* Calculates difference in columns between current editor caret position and end of the logical
* line fragment displayed on a current visual line.
*
* @param editor target editor
* @return difference in columns between current editor caret position and end of the logical line
* fragment displayed on a current visual line
*/
public static int calcAfterLineEnd(Editor editor) {
Document document = editor.getDocument();
CaretModel caretModel = editor.getCaretModel();
LogicalPosition logicalPosition = caretModel.getLogicalPosition();
int lineNumber = logicalPosition.line;
int columnNumber = logicalPosition.column;
if (lineNumber >= document.getLineCount()) {
return columnNumber;
}
int caretOffset = caretModel.getOffset();
int anchorLineEndOffset = document.getLineEndOffset(lineNumber);
List<? extends SoftWrap> softWraps =
editor.getSoftWrapModel().getSoftWrapsForLine(logicalPosition.line);
for (SoftWrap softWrap : softWraps) {
if (!editor.getSoftWrapModel().isVisible(softWrap)) {
continue;
}
int softWrapOffset = softWrap.getStart();
if (softWrapOffset == caretOffset) {
// There are two possible situations:
// *) caret is located on a visual line before soft wrap-introduced line feed;
// *) caret is located on a visual line after soft wrap-introduced line feed;
VisualPosition position = editor.offsetToVisualPosition(caretOffset - 1);
VisualPosition visualCaret = caretModel.getVisualPosition();
if (position.line == visualCaret.line) {
return visualCaret.column - position.column - 1;
}
}
if (softWrapOffset > caretOffset) {
anchorLineEndOffset = softWrapOffset;
break;
}
// Same offset corresponds to all soft wrap-introduced symbols, however, current method should
// behave differently in
// situations when the caret is located just before the soft wrap and at the next visual line.
if (softWrapOffset == caretOffset) {
boolean visuallyBeforeSoftWrap =
caretModel.getVisualPosition().line < editor.offsetToVisualPosition(caretOffset).line;
if (visuallyBeforeSoftWrap) {
anchorLineEndOffset = softWrapOffset;
break;
}
}
}
int lineEndColumnNumber = editor.offsetToLogicalPosition(anchorLineEndOffset).column;
return columnNumber - lineEndColumnNumber;
}
@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);
}
@Override
public void beforeDocumentChangeAtCaret() {
CaretModel caretModel = myEditor.getCaretModel();
VisualPosition visualCaretPosition = caretModel.getVisualPosition();
if (!isInsideSoftWrap(visualCaretPosition)) {
return;
}
SoftWrap softWrap = myStorage.getSoftWrap(caretModel.getOffset());
if (softWrap == null) {
return;
}
myEditor
.getDocument()
.replaceString(softWrap.getStart(), softWrap.getEnd(), softWrap.getText());
caretModel.moveToVisualPosition(visualCaretPosition);
}
public void testEndProcessing() throws IOException {
String text =
"class Test {\n"
+ " public String s = \"this is a long string literal that is expected to be soft-wrapped into multiple visual lines\"; \n"
+ "}";
init(30, text);
myEditor.getCaretModel().moveToOffset(text.indexOf("\n") + 1);
List<? extends SoftWrap> softWraps =
new ArrayList<SoftWrap>(getSoftWrapModel().getRegisteredSoftWraps());
assertTrue(!softWraps.isEmpty());
CaretModel caretModel = myEditor.getCaretModel();
int expectedVisualLine = caretModel.getVisualPosition().line;
while (!softWraps.isEmpty()) {
SoftWrap softWrap = softWraps.get(0);
int caretOffsetBefore = caretModel.getOffset();
end();
// Expecting the caret to be moved at the last non-white space symbol on the current visual
// line.
int caretOffset = caretModel.getOffset();
assertTrue(caretOffset > caretOffsetBefore);
assertFalse(caretOffset > softWrap.getStart());
if (caretOffset < softWrap.getStart()) {
// There is a possible case that there are white space symbols between caret position
// applied on 'end' processing and
// soft wrap. Let's check that and emulate one more 'end' typing in order to move caret
// right before soft wrap.
for (int i = caretOffset; i < softWrap.getStart(); i++) {
char c = text.charAt(i);
assertTrue(c == ' ' || c == '\t');
}
caretOffsetBefore = caretOffset;
end();
caretOffset = caretModel.getOffset();
assertTrue(caretOffset > caretOffsetBefore);
}
assertEquals(softWrap.getStart(), caretOffset);
assertEquals(
new VisualPosition(
expectedVisualLine,
myEditor.offsetToVisualPosition(softWrap.getStart() - 1).column + 1),
caretModel.getVisualPosition());
softWraps.remove(0);
expectedVisualLine++;
}
// Check that caret is placed on a last non-white space symbol on current logical line.
end();
int lastNonWhiteSpaceSymbolOffset = text.indexOf("\";") + 2;
assertEquals(lastNonWhiteSpaceSymbolOffset, caretModel.getOffset());
assertEquals(
myEditor.offsetToVisualPosition(lastNonWhiteSpaceSymbolOffset),
caretModel.getVisualPosition());
assertEquals(expectedVisualLine, caretModel.getVisualPosition().line);
// Check that caret is place to the very end of the logical line.
end();
int lastSymbolOffset =
myEditor.getDocument().getLineEndOffset(caretModel.getLogicalPosition().line);
assertEquals(lastSymbolOffset, caretModel.getOffset());
assertEquals(myEditor.offsetToVisualPosition(lastSymbolOffset), caretModel.getVisualPosition());
assertEquals(expectedVisualLine, caretModel.getVisualPosition().line);
}
