Java StyledText.setBackground方法代碼示例

import org.eclipse.swt.custom.StyledText; //導入方法依賴的package包/類
/**
 * Creates, configures and returns the suffix text control.
 */
private StyledText createSuffixText() {
	StyledText styledText = new StyledText(this, SWT.TRANSPARENT);
	styledText.setText("");
	styledText.setForeground(INACTIVE_COLOR);
	styledText.setBackground(getDisplay().getSystemColor(SWT.COLOR_TRANSPARENT));
	styledText.setEditable(false);
	styledText.setEnabled(false);
	styledText.setLeftMargin(0);

	return styledText;
}
 

import org.eclipse.swt.custom.StyledText; //導入方法依賴的package包/類
private StyledText createStyledText() {
	styledText = new StyledText(shell,
			SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL); // SWT.WRAP
	GridData gridData = new GridData();
	styledText.setFont(
			new Font(shell.getDisplay(), "Source Code Pro Light", 10, SWT.NORMAL));
	gridData.horizontalAlignment = GridData.FILL;
	gridData.grabExcessHorizontalSpace = true;
	gridData.verticalAlignment = GridData.FILL;
	gridData.grabExcessVerticalSpace = true;
	styledText.setLayoutData(gridData);
	styledText.addLineStyleListener(lineStyler);
	styledText.setEditable(false);
	styledText
			.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_GRAY));
	return styledText;
}
 

import org.eclipse.swt.custom.StyledText; //導入方法依賴的package包/類
/**
 * Creates and returns with a new {@link StyledText styled text} instance hooked up to the given parent composite.
 *
 * @param parent
 *            the parent of the styled text control.
 * @param style
 *            style bits for the new text control.
 * @return a new styled text control initialized from the descriptor.
 */
default StyledText toStyledText(final Composite parent, final int style) {

	final StyledText text = new StyledText(parent, READ_ONLY | style);
	text.setText(getText());
	text.setStyleRanges(getRanges());
	text.setFont(getFont());
	text.setEditable(false);
	text.setEnabled(false);

	final AtomicReference<Color> colorRef = new AtomicReference<>();
	final IPreferenceStore prefStore = EditorsUI.getPreferenceStore();
	if (null == prefStore
			|| prefStore.getBoolean(PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT)) {

		colorRef.set(getDefault().getSystemColor(COLOR_LIST_BACKGROUND));

	} else {

		RGB rgb = null;
		if (prefStore.contains(PREFERENCE_COLOR_BACKGROUND)) {
			if (prefStore.isDefault(PREFERENCE_COLOR_BACKGROUND)) {
				rgb = getDefaultColor(prefStore, PREFERENCE_COLOR_BACKGROUND);
			} else {
				rgb = getColor(prefStore, PREFERENCE_COLOR_BACKGROUND);
			}
			if (rgb != null) {
				colorRef.set(new Color(text.getDisplay(), rgb));
			}
		}

	}

	if (null != colorRef.get()) {
		text.setBackground(colorRef.get());
		text.addDisposeListener(e -> {
			if (!colorRef.get().isDisposed()) {
				colorRef.get().dispose();
			}
		});
	}

	text.pack();
	return text;
}
 

import org.eclipse.swt.custom.StyledText; //導入方法依賴的package包/類
/**
 * Creates a control with some message and with link to the Binaries preference page.
 *
 * @param parent
 *            the parent composite.
 * @param dialog
 *            the container dialog that has to be closed.
 * @param binary
 *            the binary with the illegal state.
 *
 * @return a control with error message and link that can be reused in dialogs.
 */
public static Control createCustomAreaWithLink(final Composite parent, final Dialog dialog, final Binary binary) {
	final String binaryLabel = binary.getLabel();
	final String prefix = "The requested operation cannot be performed due to invalid '" + binaryLabel
			+ "' settings. Check your '" + binaryLabel
			+ "' configuration and preferences under the corresponding ";
	final String link = "preference page";
	final String suffix = ".";
	final String text = prefix + link + suffix;

	final Composite control = new Composite(parent, NONE);
	control.setLayout(GridLayoutFactory.fillDefaults().create());
	final GridData gridData = GridDataFactory.fillDefaults().align(LEFT, TOP).grab(true, true).create();
	control.setLayoutData(gridData);

	final StyleRange style = new StyleRange();
	style.underline = true;
	style.underlineStyle = UNDERLINE_LINK;

	final StyledText styledText = new StyledText(control, MULTI | READ_ONLY | WRAP);
	styledText.setWordWrap(true);
	styledText.setJustify(true);
	styledText.setText(text);
	final GridData textGridData = GridDataFactory.fillDefaults().align(FILL, FILL).grab(true, true).create();
	textGridData.widthHint = TEXT_WIDTH_HINT;
	textGridData.heightHint = TEXT_HEIGHT_HINT;
	styledText.setLayoutData(textGridData);

	styledText.setEditable(false);
	styledText.setBackground(UIUtils.getSystemColor(COLOR_WIDGET_BACKGROUND));
	final int[] ranges = { text.indexOf(link), link.length() };
	final StyleRange[] styles = { style };
	styledText.setStyleRanges(ranges, styles);

	styledText.addMouseListener(new MouseAdapter() {

		@Override
		public void mouseDown(final MouseEvent event) {
			try {
				final int offset = styledText.getOffsetAtLocation(new Point(event.x, event.y));
				final StyleRange actualStyle = styledText.getStyleRangeAtOffset(offset);
				if (null != actualStyle && actualStyle.underline
						&& UNDERLINE_LINK == actualStyle.underlineStyle) {

					dialog.close();
					final PreferenceDialog preferenceDialog = createPreferenceDialogOn(
							UIUtils.getShell(),
							BinariesPreferencePage.ID,
							FILTER_IDS,
							null);

					if (null != preferenceDialog) {
						preferenceDialog.open();
					}

				}
			} catch (final IllegalArgumentException e) {
				// We are not over the actual text.
			}
		}

	});

	return control;
}