/**
* Called on editor settings change. Current model is expected to drop all cached information
* about the settings if any.
*/
public void reinitSettings() {
boolean softWrapsUsedBefore = myUseSoftWraps;
myUseSoftWraps = areSoftWrapsEnabledInEditor();
int tabWidthBefore = myTabWidth;
myTabWidth = EditorUtil.getTabSize(myEditor);
boolean fontsChanged = false;
if (!myFontPreferences.equals(myEditor.getColorsScheme().getFontPreferences())
&& myEditorTextRepresentationHelper instanceof DefaultEditorTextRepresentationHelper) {
fontsChanged = true;
myEditor.getColorsScheme().getFontPreferences().copyTo(myFontPreferences);
((DefaultEditorTextRepresentationHelper) myEditorTextRepresentationHelper)
.clearSymbolWidthCache();
myPainter.reinit();
}
if ((myUseSoftWraps ^ softWrapsUsedBefore)
|| (tabWidthBefore >= 0 && myTabWidth != tabWidthBefore)
|| fontsChanged) {
myApplianceManager.reset();
myDeferredFoldRegions.clear();
myStorage.removeAll();
myEditor.getScrollingModel().scrollToCaret(ScrollType.CENTER);
}
}
public void testSoftWrapsRecalculationInASpecificCase() throws Exception {
configureFromFileText(
getTestName(false) + ".java",
"<selection>class Foo {\n"
+ "\t@Override\n"
+ "\tpublic boolean equals(Object other) {\n"
+ "\t\treturn this == other;\n"
+ "\t}\n"
+ "}</selection>");
CodeFoldingManager.getInstance(ourProject).buildInitialFoldings(myEditor);
configureSoftWraps(32);
// verify initial state
assertEquals(4, EditorUtil.getTabSize(myEditor));
assertEquals(
"[FoldRegion +(59:64), placeholder=' { ', FoldRegion +(85:88), placeholder=' }']",
myEditor.getFoldingModel().toString());
verifySoftWrapPositions(52, 85);
Document document = myEditor.getDocument();
for (int i = document.getLineCount() - 1; i >= 0; i--) {
document.insertString(document.getLineStartOffset(i), "//");
}
verifySoftWrapPositions(58, 93);
}
private int calcOffset(int col, int lineNumber, int lineStartOffset) {
if (myDocumentWindow.getTextLength() == 0) return 0;
int end = myDocumentWindow.getLineEndOffset(lineNumber);
CharSequence text = myDocumentWindow.getCharsSequence();
return EditorUtil.calcOffset(
this, text, lineStartOffset, end, col, EditorUtil.getTabSize(myDelegate), null);
}
private int calcLogicalColumnNumber(int offsetInLine, int lineNumber, int lineStartOffset) {
if (myDocumentWindow.getTextLength() == 0) return 0;
if (offsetInLine == 0) return 0;
int end = myDocumentWindow.getLineEndOffset(lineNumber);
if (offsetInLine > end - lineStartOffset) offsetInLine = end - lineStartOffset;
CharSequence text = myDocumentWindow.getCharsSequence();
return EditorUtil.calcColumnNumber(
this,
text,
lineStartOffset,
lineStartOffset + offsetInLine,
EditorUtil.getTabSize(myDelegate));
}
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];
}
}
