List of addBidiSegmentListener() Examples

Examples of addBidiSegmentListener()

org.eclipse.swt.custom.StyledText.addBidiSegmentListener()

Adds a bidirectional segment listener.

A BidiSegmentEvent is sent whenever a line of text is measured or rendered. The user can specify text ranges in the line that should be treated as if they had a different direction than the surrounding text. This may be used when adjacent segments of right-to-left text should not be reordered relative to each other. E.g., Multiple Java string literals in a right-to-left language should generally remain in logical order to each other, that is, the way they are stored.

@param listener the listener @exception SWTException

ERROR_WIDGET_DISPOSED - if the receiver has been disposed
ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

@exception IllegalArgumentException

ERROR_NULL_ARGUMENT when listener is null

@see BidiSegmentEvent @since 2.0

    private Color fForegroundColor;


    public PythonSourceViewer(Composite parent, IVerticalRuler ruler, int styles) {
        super(parent, ruler, styles);
        StyledText text = this.getTextWidget();
        text.addBidiSegmentListener(new BidiSegmentListener() {
            public void lineGetSegments(BidiSegmentEvent event) {
                try {
                    event.segments = getBidiLineSegments(event.lineOffset);
                } catch (BadLocationException x) {
                    // ignore

        called = true;
      }
    }
    BidiSegmentListenerTester tester = new BidiSegmentListenerTester();
    StyledText textWidget = getTextWidget();
    textWidget.addBidiSegmentListener(tester);
    textWidget.setText(" "); //$NON-NLS-1$
    textWidget.computeSize(SWT.DEFAULT, SWT.DEFAULT);
    textWidget.removeBidiSegmentListener(tester);


    brokenBidiPlatformTextWidth = tester.called ? -1 : textWidth;

              e.segments = segments;
              e.segmentsChars = segmentsChars;
            }
          }
        };
        textWidget.addBidiSegmentListener(hardWrapSegmentListener);
        textWidget.setText(textWidget.getText()); // XXX: workaround for https://bugs.eclipse.org/384886


        if (brokenBidiPlatformTextWidth != -1) {
          Layout restrictedWidthLayout = new Layout() {
            @Override

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Examples of addBidiSegmentListener()

Examples of org.eclipse.swt.custom.StyledText.addBidiSegmentListener()

Examples of org.eclipse.swt.custom.StyledText.addBidiSegmentListener()

Examples of org.eclipse.swt.custom.StyledText.addBidiSegmentListener()