void ScCodeEditor::toggleCommentSingleLine(QTextCursor cursor)
{
QTextBlock currentBlock(cursor.block());
cursor.beginEditBlock();
if (!isSingleLineComment(currentBlock)) {
int blockIndentation = indentationLevel(cursor);
addSingleLineComment(cursor, blockIndentation);
} else
removeSingleLineComment(cursor);
cursor.endEditBlock();
indent(cursor);
}
static bool isSingleLineComment(QTextCursor const & selection)
{
QTextCursor cursor(selection);
cursor.setPosition(selection.selectionStart());
QTextBlock startBlock = cursor.block();
cursor.setPosition(selection.selectionEnd() - 1);
QTextBlock endBlock = cursor.block();
for (QTextBlock block = startBlock; block != endBlock.next(); block = block.next()) {
if (!isSingleLineComment(block))
return false;
}
return true;
}
void Preprocessor::parse(const char* name, const char* text)
{
if (std::find(names.begin(), names.end(), name) != names.end())
return;
files.push_back(File(name, text));
names.push_back(name);
list += format("( file %u: %s )\n", (uint) names.size(), name);
output.reserve(output.size() + std::strlen(text));
appendToOutput(format("#line 0 %u /* entering %s */\n",
(uint) files.size(),
files.back().name).c_str());
while (hasMore())
{
if (isMultiLineComment())
parseMultiLineComment();
else if (isSingleLineComment())
parseSingleLineComment();
else if (isNewLine())
parseNewLine();
else if (isWhitespace())
parseWhitespace();
else if (isCommand())
parseCommand();
else
{
advance(1);
appendToOutput();
setFirstOnLine(false);
}
}
files.pop_back();
if (!files.empty())
{
appendToOutput(format("\n#line %u %u /* returning to %s */",
files.back().line,
(uint) files.size(),
files.back().name).c_str());
}
}
void Preprocessor::parseCommand()
{
advance(1);
setFirstOnLine(false);
passWhitespace();
const String command = passIdentifier();
if (command == "include")
{
passWhitespace();
const String name = passShaderName();
discard();
parse(name.c_str());
}
else if (command == "version")
{
if (!version.empty())
{
logError("%s:%u: Duplicate #version directive",
files.back().name,
files.back().line);
throw Exception("Duplicate #version directive");
}
passWhitespace();
version = passNumber();
discard();
}
while (hasMore())
{
if (isNewLine() || isSingleLineComment() || isMultiLineComment())
break;
advance(1);
}
appendToOutput();
}
void ScCodeEditor::toggleCommentSelection()
{
QTextCursor cursor = textCursor();
cursor.beginEditBlock();
if (isBlockOnlySelection(cursor)) {
const bool isComment = isSingleLineComment(cursor);
QTextCursor selectionCursor(cursor);
selectionCursor.setPosition(cursor.selectionStart());
QTextBlock currentBlock = selectionCursor.block();
int firstBlockIndentation = isComment ? 0
: indentationLevel(selectionCursor);
do {
QTextCursor blockCursor(currentBlock);
if (!isComment)
addSingleLineComment(blockCursor, firstBlockIndentation);
else
removeSingleLineComment(blockCursor);
currentBlock = currentBlock.next();
} while (currentBlock.isValid() && currentBlock.position() < cursor.selectionEnd());
if (!isComment) {
// fix up selection
QTextCursor newSelection(cursor);
if (cursor.anchor() < cursor.position()) {
newSelection.setPosition(newSelection.selectionStart());
newSelection.movePosition(QTextCursor::StartOfBlock);
newSelection.setPosition(cursor.selectionEnd(), QTextCursor::KeepAnchor);
} else {
newSelection.setPosition(newSelection.selectionEnd());
newSelection.setPosition(cursor.selectionStart(), QTextCursor::KeepAnchor);
newSelection.movePosition(QTextCursor::StartOfBlock, QTextCursor::KeepAnchor);
}
setTextCursor(newSelection);
}
} else {
QString selectionText = cursor.selectedText();
QTextCursor selectionCursor(cursor);
if (isSelectionComment(selectionText)) {
selectionText = selectionText.trimmed().remove(0, 2);
selectionText.chop(2);
selectionCursor.insertText(selectionText);
} else {
selectionText = QString("/*") + selectionText + QString("*/");
selectionCursor.insertText(selectionText);
}
// fix up selection
const int position = selectionCursor.position();
const int anchor = selectionCursor.anchor();
if (position > anchor) {
cursor.setPosition(position - selectionText.size());
cursor.setPosition(position, QTextCursor::KeepAnchor);
} else {
cursor.setPosition(position);
cursor.setPosition(position - selectionText.size(), QTextCursor::KeepAnchor);
}
setTextCursor(cursor);
}
cursor.endEditBlock();
}
