public org.eclipse.jface.text.rules.IToken nextToken() {
boolean isOriginalToken = true;
if (!nextTokens.isEmpty()) {
currentToken = nextTokens.remove(0);
isOriginalToken = false;
} else {
currentToken = lexer.getNextToken();
}
if (currentToken == null || !currentToken.canBeUsedForSyntaxHighlighting()) {
return org.eclipse.jface.text.rules.Token.EOF;
}
if (isOriginalToken) {
splitCurrentToken();
}
org.eclipse.jface.text.TextAttribute textAttribute = null;
String tokenName = currentToken.getName();
if (tokenName != null) {
tudresden.ocl20.pivot.language.ocl.resource.ocl.IOclTokenStyle staticStyle =
getStaticTokenStyle();
// now call dynamic token styler to allow to apply modifications to the static
// style
tudresden.ocl20.pivot.language.ocl.resource.ocl.IOclTokenStyle dynamicStyle =
getDynamicTokenStyle(staticStyle);
if (dynamicStyle != null) {
textAttribute = getTextAttribute(dynamicStyle);
}
}
return new org.eclipse.jface.text.rules.Token(textAttribute);
}
public String getTokenText() {
return currentToken.getText();
}
public int getTokenOffset() {
return offset + currentToken.getOffset();
}
public int getTokenLength() {
return currentToken.getLength();
}
/** Tries to split the current token if it contains task items. */
public void splitCurrentToken() {
final String text = currentToken.getText();
final String name = currentToken.getName();
final int line = currentToken.getLine();
final int charStart = currentToken.getOffset();
final int column = currentToken.getColumn();
java.util.List<tudresden.ocl20.pivot.language.ocl.resource.ocl.mopp.OclTaskItem> taskItems =
new tudresden.ocl20.pivot.language.ocl.resource.ocl.mopp.OclTaskItemDetector()
.findTaskItems(text, line, charStart);
// this is the offset for the next token to be added
int offset = charStart;
int itemBeginRelative;
java.util.List<tudresden.ocl20.pivot.language.ocl.resource.ocl.IOclTextToken> newItems =
new java.util.ArrayList<tudresden.ocl20.pivot.language.ocl.resource.ocl.IOclTextToken>();
for (tudresden.ocl20.pivot.language.ocl.resource.ocl.mopp.OclTaskItem taskItem : taskItems) {
int itemBegin = taskItem.getCharStart();
int itemLine = taskItem.getLine();
int itemColumn = 0;
itemBeginRelative = itemBegin - charStart;
// create token before task item (TODO if required)
String textBefore = text.substring(offset - charStart, itemBeginRelative);
int textBeforeLength = textBefore.length();
newItems.add(
new tudresden.ocl20.pivot.language.ocl.resource.ocl.mopp.OclTextToken(
name, textBefore, offset, textBeforeLength, line, column, true));
// create token for the task item itself
offset = offset + textBeforeLength;
String itemText = taskItem.getKeyword();
int itemTextLength = itemText.length();
newItems.add(
new tudresden.ocl20.pivot.language.ocl.resource.ocl.mopp.OclTextToken(
tudresden.ocl20.pivot.language.ocl.resource.ocl.mopp.OclTokenStyleInformationProvider
.TASK_ITEM_TOKEN_NAME,
itemText,
offset,
itemTextLength,
itemLine,
itemColumn,
true));
offset = offset + itemTextLength;
}
if (!taskItems.isEmpty()) {
// create token after last task item (TODO if required)
String textAfter = text.substring(offset - charStart);
newItems.add(
new tudresden.ocl20.pivot.language.ocl.resource.ocl.mopp.OclTextToken(
name, textAfter, offset, textAfter.length(), line, column, true));
}
if (!newItems.isEmpty()) {
// replace tokens
currentToken = newItems.remove(0);
nextTokens = newItems;
}
}
public tudresden.ocl20.pivot.language.ocl.resource.ocl.IOclTokenStyle getStaticTokenStyle() {
tudresden.ocl20.pivot.language.ocl.resource.ocl.IOclTokenStyle staticStyle = null;
String tokenName = currentToken.getName();
String enableKey =
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper.getPreferenceKey(
languageId,
tokenName,
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper.StyleProperty
.ENABLE);
boolean enabled = store.getBoolean(enableKey);
if (enabled) {
String colorKey =
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.getPreferenceKey(
languageId,
tokenName,
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.StyleProperty.COLOR);
org.eclipse.swt.graphics.RGB foregroundRGB =
org.eclipse.jface.preference.PreferenceConverter.getColor(store, colorKey);
org.eclipse.swt.graphics.RGB backgroundRGB = null;
boolean bold =
store.getBoolean(
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.getPreferenceKey(
languageId,
tokenName,
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.StyleProperty.BOLD));
boolean italic =
store.getBoolean(
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.getPreferenceKey(
languageId,
tokenName,
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.StyleProperty.ITALIC));
boolean strikethrough =
store.getBoolean(
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.getPreferenceKey(
languageId,
tokenName,
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.StyleProperty.STRIKETHROUGH));
boolean underline =
store.getBoolean(
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.getPreferenceKey(
languageId,
tokenName,
tudresden.ocl20.pivot.language.ocl.resource.ocl.ui.OclSyntaxColoringHelper
.StyleProperty.UNDERLINE));
staticStyle =
new tudresden.ocl20.pivot.language.ocl.resource.ocl.mopp.OclTokenStyle(
convertToIntArray(foregroundRGB),
convertToIntArray(backgroundRGB),
bold,
italic,
strikethrough,
underline);
}
return staticStyle;
}
