Java Code Examples for org.eclipse.swt.custom.StyledText#getStyleRanges()

@Test
public void testTMHighlightInGenericEditorEdit() throws IOException, PartInitException {
	f = File.createTempFile("test" + System.currentTimeMillis(), ".ts");
	FileOutputStream fileOutputStream = new FileOutputStream(f);
	fileOutputStream.write("let a = '';".getBytes());
	fileOutputStream.close();
	f.deleteOnExit();
	editor = IDE.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(),
			f.toURI(), editorDescriptor.getId(), true);
	StyledText text = (StyledText)editor.getAdapter(Control.class);
	Assert.assertTrue(new DisplayHelper() {
		@Override
		protected boolean condition() {
			return text.getStyleRanges().length > 1;
		}
	}.waitForCondition(text.getDisplay(), 3000));
	int initialNumberOfRanges = text.getStyleRanges().length;
	text.setText("let a = '';\nlet b = 10;\nlet c = true;");
	Assert.assertTrue("More styles should have been added", new DisplayHelper() {
		@Override protected boolean condition() {
			return text.getStyleRanges().length > initialNumberOfRanges + 3;
		}
	}.waitForCondition(text.getDisplay(), 300000));
}
 

/**
 * 刷新拼写检查中错误单词的样式
 * @param ranges
 */
public void refreshErrorWordsStyle(List<StyleRange> ranges){
	StyledText styledText = cellEditor.viewer.getTextWidget();
	List<StyleRange> oldRangeList = new ArrayList<StyleRange>();
	for(StyleRange oldRange : styledText.getStyleRanges()){
		if (oldRange.underlineStyle != SWT.UNDERLINE_ERROR) {
			oldRangeList.add(oldRange);
		}
	}
	styledText.setStyleRange(null);

	styledText.setStyleRanges(oldRangeList.toArray(new StyleRange[oldRangeList.size()]));
	if (ranges != null) {
		for (StyleRange range : ranges) {
			styledText.setStyleRange(range);
		}
	}
}
 

/**
 * 刷新拼写检查中错误单词的样式
 * @param ranges
 */
public void refreshErrorWordsStyle(List<StyleRange> ranges){
	StyledText styledText = cellEditor.viewer.getTextWidget();
	List<StyleRange> oldRangeList = new ArrayList<StyleRange>();
	for(StyleRange oldRange : styledText.getStyleRanges()){
		if (oldRange.underlineStyle != SWT.UNDERLINE_ERROR) {
			oldRangeList.add(oldRange);
		}
	}
	styledText.setStyleRange(null);

	styledText.setStyleRanges(oldRangeList.toArray(new StyleRange[oldRangeList.size()]));
	if (ranges != null) {
		for (StyleRange range : ranges) {
			styledText.setStyleRange(range);
		}
	}
}
 

private void drawCurrentLine(LineBackgroundEvent event, final IRegion lineRegion)
{
	final StyledText textWidget = fViewer.getTextWidget();
	final int offset = event.lineOffset;
	final RGBa lineHighlight = getCurrentTheme().getLineHighlight();
	event.lineBackground = getColorManager().getColor(lineHighlight.toRGB());

	// In this case, we should be overriding the bg of the style ranges for the line too!
	if (textWidget.isDisposed())
	{
		return;
	}
	// FIXME Only change bg colors of visible ranges!
	int replaceLength = 160;
	if (lineRegion != null)
	{
		replaceLength = Math.min(replaceLength, lineRegion.getLength());
	}

	// be safe about offsets
	int charCount = textWidget.getCharCount();
	if (offset + replaceLength > charCount)
	{
		replaceLength = charCount - offset;
		if (replaceLength < 0)
		{
			// Just playing safe here
			replaceLength = 0;
		}
	}
	final StyleRange[] ranges = textWidget.getStyleRanges(offset, replaceLength, true);
	if (ranges == null || ranges.length == 0)
	{
		return;
	}
	Color background = textWidget.getBackground();
	final int[] positions = new int[ranges.length << 1];
	int x = 0;
	boolean apply = false;
	for (StyleRange range : ranges)
	{
		if (range.background != null)
		{
			if (!range.background.equals(background))
			{
				positions[x] = range.start;
				positions[x + 1] = range.length;
				x += 2;
				continue;
			}
			apply = true;
		}
		range.background = null;
		positions[x] = range.start;
		positions[x + 1] = range.length;
		x += 2;
	}

	if (apply)
	{
		textWidget.setStyleRanges(offset, replaceLength, positions, ranges);
	}
}
 

public void testLineTracker() throws Exception {
    // PyUnitViewTest fails because it depends on org.eclipse.debug.ui.console.IConsoleLineTracker
    // being able to be loaded. But IConsoleLineTracker is in a plug-in with an activator that in
    // turn relies on the workbench being loaded, leading to a test error. This isn't a problem
    // when run within Eclipse as a (plain) JUint test because the Activator is skipped.
    // Since the classes under test rely on IConsoleLineTracker, the test must be run as a
    // GUI enabled Plug-in test (i.e workbench started), however if you do that the test fails
    // because of interactions with other services in the workbench.
    if (PydevPlugin.getDefault() != null) {
        if (SharedCorePlugin.skipKnownFailures()) {
            return;
        }
    }
    PyUnitView pyUnitView = new PyUnitView();
    PyUnitTestRun testRun = new PyUnitTestRun(null);
    String error = "File \"Y:\\test_python\\src\\mod1\\mod2\\test_it2.py\", line 45, in testAnotherCase";
    PyUnitTestResult result = new PyUnitTestResult(testRun, "fail", "c:\\temp.py", "TestCase.foo", "", "\n\n"
            + error + "\nfoo\n", "0");

    Display display = Display.getCurrent();
    if (display == null) {
        display = Display.getDefault();
    }
    Shell composite = new Shell(display);
    composite.setLayout(new FillLayout());

    StyledText text = new StyledText(composite, 0);
    pyUnitView.setTextComponent(text);
    pyUnitView.setOnlyCreateLinksForExistingFiles(false);
    pyUnitView.onSelectResult(result);

    //uncomment below to see results.
    //        composite.pack();
    //        composite.open();
    //
    //        while (!composite.isDisposed()) {
    //            if (!display.readAndDispatch()){
    //                display.sleep();
    //            }
    //        }

    StyleRange[] styleRanges = text.getStyleRanges();
    assertEquals(1, styleRanges.length);
    assertEquals(69, styleRanges[0].start);
    assertEquals(error.length(), styleRanges[0].length);
}