Bug 291755 [Filters] Filters implementation and API cleanup
This bug is raised to track reviewing and cleanup of filters API and implementation.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ResourceFilterGroup.java
arguments.setFont(font);
		arguments.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				FilterTypeUtil.setValue(filter, FilterTypeUtil.ARGUMENTS,
						arguments.getText());
			}
		});
		if (filter.hasStringArguments())
			arguments.setText((String) FilterTypeUtil.getValue(filter,
					FilterTypeUtil.ARGUMENTS));
		arguments.setEnabled(filter.hasStringArguments());
		setArgumentLabelEnabled();
	}
	/**
	 * 
	 */
	private void setArgumentLabelEnabled() {
		Color color = argumentsLabel.getDisplay().getSystemColor(filter.hasStringArguments() ? SWT.COLOR_BLACK : SWT.COLOR_GRAY); 
		argumentsLabel.setForeground(color);
	}
	/**
	 * @param font
	 * @param composite
	 */
	private void createDescriptionArea(Font font, Composite composite) {
		GridData data;
		description = new Label(composite, SWT.LEFT | SWT.WRAP);
		description.setText(FilterTypeUtil.getDescriptor(filter.getId())
				.getDescription());
		data = new GridData(SWT.FILL, SWT.BEGINNING, true, true);