private boolean paintPlaceholderText(Graphics2D g) {
    CharSequence hintText = myEditor.getPlaceholder();
    EditorComponentImpl editorComponent = myEditor.getContentComponent();
    if (myDocument.getTextLength() > 0
        || hintText == null
        || hintText.length() == 0
        || KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner() == editorComponent
            && !myEditor.getShowPlaceholderWhenFocused()) {
      return false;
    }

    hintText =
        SwingUtilities.layoutCompoundLabel(
            g.getFontMetrics(),
            hintText.toString(),
            null,
            0,
            0,
            0,
            0,
            editorComponent.getBounds(),
            new Rectangle(),
            new Rectangle(),
            0);
    g.setColor(myEditor.getFoldingModel().getPlaceholderAttributes().getForegroundColor());
    g.setFont(myEditor.getColorsScheme().getFont(EditorFontType.PLAIN));
    g.drawString(hintText.toString(), 0, myView.getAscent());
    return true;
  }
 /**
  * We know that there are problems with incremental soft wraps cache update at the moment. Hence,
  * we may implement full cache reconstruction when the problem is encountered in order to avoid
  * customer annoyance.
  *
  * <p>However, the problems still should be fixed, hence, we report them only if dedicated flag is
  * set.
  *
  * <p>Current method encapsulates the logic mentioned above.
  *
  * @param task command object that which execution may trigger incremental update of update soft
  *     wraps cache
  */
 @SuppressWarnings({"UseOfArchaicSystemPropertyAccessors"})
 private void executeSafely(SoftWrapAwareTask task) {
   try {
     task.run(true);
   } catch (Throwable e) {
     if (Boolean.getBoolean(DEBUG_PROPERTY_NAME)
         || ApplicationManager.getApplication().isUnitTestMode()) {
       String info = myEditor.dumpState();
       LOG.error(
           String.format("Unexpected exception occurred during performing '%s'", task), e, info);
     }
     myEditor.getFoldingModel().rebuild();
     myDataMapper.release();
     myApplianceManager.reset();
     myStorage.removeAll();
     myApplianceManager.recalculateIfNecessary();
     try {
       task.run(true);
     } catch (Throwable e1) {
       String info = myEditor.dumpState();
       LOG.error(
           String.format("Can't perform %s even with complete soft wraps cache re-parsing", task),
           e1,
           info);
       myEditor.getSettings().setUseSoftWraps(false);
       task.run(false);
     }
   }
 }
  @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);
  }
Exemplo n.º 4
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 public void moveToOffset(int offset, boolean locateBeforeSoftWrap) {
   assertIsDispatchThread();
   validateCallContext();
   moveToLogicalPosition(myEditor.offsetToLogicalPosition(offset), locateBeforeSoftWrap);
   if (!ignoreWrongMoves
       && !myEditor
           .offsetToLogicalPosition(myOffset)
           .equals(myEditor.offsetToLogicalPosition(offset))) {
     LOG.error(
         "caret moved to wrong offset. Requested:"
             + offset
             + " but actual:"
             + myOffset
             + ". Soft wraps data: "
             + myEditor.getSoftWrapModel()
             + ", folding data: "
             + myEditor.getFoldingModel());
   }
 }
 private void paintHighlighterAfterEndOfLine(Graphics2D g, RangeHighlighterEx highlighter) {
   if (!highlighter.isAfterEndOfLine()) {
     return;
   }
   int startOffset = highlighter.getStartOffset();
   int lineEndOffset = myDocument.getLineEndOffset(myDocument.getLineNumber(startOffset));
   if (myEditor.getFoldingModel().isOffsetCollapsed(lineEndOffset)) return;
   Point lineEnd = myView.offsetToXY(lineEndOffset, true, false);
   int x = lineEnd.x;
   int y = lineEnd.y;
   TextAttributes attributes = highlighter.getTextAttributes();
   paintBackground(g, attributes, x, y, myView.getPlainSpaceWidth());
   if (attributes != null
       && hasTextEffect(attributes.getEffectColor(), attributes.getEffectType())) {
     paintTextEffect(
         g,
         x,
         x + myView.getPlainSpaceWidth() - 1,
         y + myView.getAscent(),
         attributes.getEffectColor(),
         attributes.getEffectType());
   }
 }
Exemplo n.º 6
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 public FoldingOrNewLineGaps(EditorImpl editor) {
   this(
       editor.getDocument().getCharsSequence(),
       new RangeIterator.FoldingGaps(editor.getFoldingModel()));
 }
 private TextAttributes getFoldRegionAttributes(FoldRegion foldRegion) {
   TextAttributes foldAttributes = myEditor.getFoldingModel().getPlaceholderAttributes();
   TextAttributes selectionAttributes =
       isSelected(foldRegion) ? myEditor.getSelectionModel().getTextAttributes() : null;
   return mergeAttributes(selectionAttributes, foldAttributes);
 }
Exemplo n.º 8
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  private void moveToLogicalPosition(LogicalPosition pos, boolean locateBeforeSoftWrap) {
    assertIsDispatchThread();
    myDesiredX = -1;
    validateCallContext();
    int column = pos.column;
    int line = pos.line;
    int softWrapLinesBefore = pos.softWrapLinesBeforeCurrentLogicalLine;
    int softWrapLinesCurrent = pos.softWrapLinesOnCurrentLogicalLine;
    int softWrapColumns = pos.softWrapColumnDiff;

    Document doc = myEditor.getDocument();

    if (column < 0) {
      column = 0;
      softWrapColumns = 0;
    }
    if (line < 0) {
      line = 0;
      softWrapLinesBefore = 0;
      softWrapLinesCurrent = 0;
    }

    int lineCount = doc.getLineCount();
    if (lineCount == 0) {
      line = 0;
    } else if (line > lineCount - 1) {
      line = lineCount - 1;
      softWrapLinesBefore = 0;
      softWrapLinesCurrent = 0;
    }

    EditorSettings editorSettings = myEditor.getSettings();

    if (!editorSettings.isVirtualSpace()
        && line < lineCount
        && !myEditor.getSelectionModel().hasBlockSelection()) {
      int lineEndOffset = doc.getLineEndOffset(line);
      int lineEndColumnNumber = myEditor.offsetToLogicalPosition(lineEndOffset).column;
      if (column > lineEndColumnNumber) {
        column = lineEndColumnNumber;
        if (softWrapColumns != 0) {
          softWrapColumns -= column - lineEndColumnNumber;
        }
      }
    }

    ((FoldingModelImpl) myEditor.getFoldingModel()).flushCaretPosition();

    VerticalInfo oldInfo = myCaretInfo;
    LogicalPosition oldCaretPosition = myLogicalCaret;

    LogicalPosition logicalPositionToUse;
    if (pos.visualPositionAware) {
      logicalPositionToUse =
          new LogicalPosition(
              line,
              column,
              softWrapLinesBefore,
              softWrapLinesCurrent,
              softWrapColumns,
              pos.foldedLines,
              pos.foldingColumnDiff);
    } else {
      logicalPositionToUse = new LogicalPosition(line, column);
    }
    setCurrentLogicalCaret(logicalPositionToUse);

    final int offset = myEditor.logicalPositionToOffset(myLogicalCaret);

    FoldRegion collapsedAt = myEditor.getFoldingModel().getCollapsedRegionAtOffset(offset);

    if (collapsedAt != null && offset > collapsedAt.getStartOffset()) {
      Runnable runnable =
          new Runnable() {
            public void run() {
              FoldRegion[] allCollapsedAt =
                  ((FoldingModelImpl) myEditor.getFoldingModel()).fetchCollapsedAt(offset);
              for (FoldRegion foldRange : allCollapsedAt) {
                foldRange.setExpanded(true);
              }
            }
          };

      myEditor.getFoldingModel().runBatchFoldingOperation(runnable);
    }

    myEditor.setLastColumnNumber(myLogicalCaret.column);
    myVisibleCaret = myEditor.logicalToVisualPosition(myLogicalCaret);

    myOffset = myEditor.logicalPositionToOffset(myLogicalCaret);
    LOG.assertTrue(myOffset >= 0 && myOffset <= myEditor.getDocument().getTextLength());

    myVisualLineStart =
        myEditor.logicalPositionToOffset(
            myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line, 0)));
    myVisualLineEnd =
        myEditor.logicalPositionToOffset(
            myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line + 1, 0)));

    myEditor.updateCaretCursor();
    requestRepaint(oldInfo);

    if (locateBeforeSoftWrap && SoftWrapHelper.isCaretAfterSoftWrap(myEditor)) {
      int lineToUse = myVisibleCaret.line - 1;
      if (lineToUse >= 0) {
        moveToVisualPosition(
            new VisualPosition(
                lineToUse, EditorUtil.getLastVisualLineColumnNumber(myEditor, lineToUse)));
        return;
      }
    }

    if (!oldCaretPosition.toVisualPosition().equals(myLogicalCaret.toVisualPosition())) {
      CaretEvent event = new CaretEvent(myEditor, oldCaretPosition, myLogicalCaret);
      for (CaretListener listener : myCaretListeners) {
        listener.caretPositionChanged(event);
      }
    }
  }
Exemplo n.º 9
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  public void moveToVisualPosition(@NotNull VisualPosition pos) {
    assertIsDispatchThread();
    validateCallContext();
    myDesiredX = -1;
    int column = pos.column;
    int line = pos.line;

    if (column < 0) column = 0;

    if (line < 0) line = 0;

    int lastLine = myEditor.getVisibleLineCount() - 1;
    if (lastLine <= 0) {
      lastLine = 0;
    }

    if (line > lastLine) {
      line = lastLine;
    }

    EditorSettings editorSettings = myEditor.getSettings();

    if (!editorSettings.isVirtualSpace() && line <= lastLine) {
      int lineEndColumn = EditorUtil.getLastVisualLineColumnNumber(myEditor, line);
      if (column > lineEndColumn) {
        column = lineEndColumn;
      }

      if (column < 0 && line > 0) {
        line--;
        column = EditorUtil.getLastVisualLineColumnNumber(myEditor, line);
      }
    }

    myVisibleCaret = new VisualPosition(line, column);

    VerticalInfo oldInfo = myCaretInfo;
    LogicalPosition oldPosition = myLogicalCaret;

    setCurrentLogicalCaret(myEditor.visualToLogicalPosition(myVisibleCaret));
    myOffset = myEditor.logicalPositionToOffset(myLogicalCaret);
    LOG.assertTrue(myOffset >= 0 && myOffset <= myEditor.getDocument().getTextLength());

    myVisualLineStart =
        myEditor.logicalPositionToOffset(
            myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line, 0)));
    myVisualLineEnd =
        myEditor.logicalPositionToOffset(
            myEditor.visualToLogicalPosition(new VisualPosition(myVisibleCaret.line + 1, 0)));

    ((FoldingModelImpl) myEditor.getFoldingModel()).flushCaretPosition();

    myEditor.setLastColumnNumber(myVisibleCaret.column);
    myEditor.updateCaretCursor();
    requestRepaint(oldInfo);

    if (oldPosition.column != myLogicalCaret.column || oldPosition.line != myLogicalCaret.line) {
      CaretEvent event = new CaretEvent(myEditor, oldPosition, myLogicalCaret);

      for (CaretListener listener : myCaretListeners) {
        listener.caretPositionChanged(event);
      }
    }
  }