private String getIndentMode() {
String indentMode =
JavaPlugin.getDefault()
.getCombinedPreferenceStore()
.getString(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR);
if (JavaCore.SPACE.equals(indentMode))
return PreferencesMessages.SmartTypingConfigurationBlock_tabs_message_spaces;
if (JavaCore.TAB.equals(indentMode))
return PreferencesMessages.SmartTypingConfigurationBlock_tabs_message_tabs;
if (DefaultCodeFormatterConstants.MIXED.equals(indentMode))
return PreferencesMessages.SmartTypingConfigurationBlock_tabs_message_tabsAndSpaces;
Assert.isTrue(false, "Illegal indent mode - must not happen"); // $NON-NLS-1$
return null;
}
/*
* @see SourceViewerConfiguration#getIndentPrefixes(ISourceViewer, String)
*/
public String[] getIndentPrefixes(ISourceViewer sourceViewer, String contentType) {
IJavaProject project = getProject();
final int tabWidth = CodeFormatterUtil.getTabWidth(project);
final int indentWidth = CodeFormatterUtil.getIndentWidth(project);
boolean allowTabs = tabWidth <= indentWidth;
String indentMode;
if (project == null)
indentMode = JavaCore.getOption(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR);
else indentMode = project.getOption(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, true);
boolean useSpaces =
JavaCore.SPACE.equals(indentMode) || DefaultCodeFormatterConstants.MIXED.equals(indentMode);
Assert.isLegal(allowTabs || useSpaces);
if (!allowTabs) {
char[] spaces = new char[indentWidth];
Arrays.fill(spaces, ' ');
return new String[] {new String(spaces), ""}; // $NON-NLS-1$
} else if (!useSpaces) return getIndentPrefixesForTab(tabWidth);
else return getIndentPrefixesForSpaces(tabWidth);
}
/**
* The preference setting that tells whether to insert spaces when pressing the Tab key.
*
* @return <code>true</code> if spaces are inserted when pressing the Tab key
* @since 3.5
*/
private boolean isInsertingSpacesForTab() {
return JavaCore.SPACE.equals(
getCoreOption(fProject, DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR));
}