/**
   * 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);
  }
Ejemplo n.º 3
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  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);
  }
Ejemplo n.º 4
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  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];
    }
  }