void KateAutoIndent::keepIndent ( int line )
{
// no line in front, no work...
if (line <= 0)
return;
// keep indentation: find line with content
int nonEmptyLine = line - 1;
while (nonEmptyLine >= 0) {
if (doc->lineLength(nonEmptyLine) > 0) {
break;
}
--nonEmptyLine;
}
Kate::TextLine prevTextLine = doc->plainKateTextLine(nonEmptyLine);
Kate::TextLine textLine = doc->plainKateTextLine(line);
// textline not found, cu
if (!prevTextLine || !textLine)
return;
const QString previousWhitespace = prevTextLine->leadingWhitespace();
// remove leading whitespace, then insert the leading indentation
doc->editStart ();
if (!keepExtra)
{
const QString currentWhitespace = textLine->leadingWhitespace();
doc->editRemoveText (line, 0, currentWhitespace.length());
}
doc->editInsertText (line, 0, previousWhitespace);
doc->editEnd ();
}
bool KateAutoIndent::doIndentRelative(int line, int change)
{
kDebug (13060) << "doIndentRelative: line: " << line << " change: " << change;
Kate::TextLine textline = doc->plainKateTextLine(line);
// get indent width of current line
int indentDepth = textline->indentDepth (tabWidth);
int extraSpaces = indentDepth % indentWidth;
// add change
indentDepth += change;
// if keepExtra is off, snap to a multiple of the indentWidth
if (!keepExtra && extraSpaces > 0)
{
if (change < 0)
indentDepth += indentWidth - extraSpaces;
else
indentDepth -= extraSpaces;
}
// do indent
return doIndent(line, indentDepth);
}
bool KateAutoIndent::doIndent(int line, int indentDepth, int align)
{
kDebug (13060) << "doIndent: line: " << line << " indentDepth: " << indentDepth << " align: " << align;
Kate::TextLine textline = doc->plainKateTextLine(line);
// textline not found, cu
if (!textline)
return false;
// sanity check
if (indentDepth < 0)
indentDepth = 0;
const QString oldIndentation = textline->leadingWhitespace();
// Preserve existing "tabs then spaces" alignment if and only if:
// - no alignment was passed to doIndent and
// - we aren't using spaces for indentation and
// - we aren't rounding indentation up to the next multiple of the indentation width and
// - we aren't using a combination to tabs and spaces for alignment, or in other words
// the indent width is a multiple of the tab width.
bool preserveAlignment = !useSpaces && keepExtra && indentWidth % tabWidth == 0;
if (align == 0 && preserveAlignment)
{
// Count the number of consecutive spaces at the end of the existing indentation
int i = oldIndentation.size() - 1;
while (i >= 0 && oldIndentation.at(i) == ' ')
--i;
// Use the passed indentDepth as the alignment, and set the indentDepth to
// that value minus the number of spaces found (but don't let it get negative).
align = indentDepth;
indentDepth = qMax(0, align - (oldIndentation.size() - 1 - i));
}
QString indentString = tabString(indentDepth, align);
// Modify the document *ONLY* if smth has really changed!
if (oldIndentation != indentString)
{
// remove leading whitespace, then insert the leading indentation
doc->editStart ();
doc->editRemoveText (line, 0, oldIndentation.length());
doc->editInsertText (line, 0, indentString);
doc->editEnd ();
}
return true;
}
QString KatePrefixStore::findPrefix(const Kate::TextLine& line, int start) const
{
unsigned long long state = 0;
for(int i = start; i < line->length(); ++i) {
QChar c = line->at(i);
const CharToOccurrenceStateHash& hash = m_transitionFunction[state];
CharToOccurrenceStateHash::const_iterator it = hash.find(c.unicode());
if(it == hash.end()) {
return QString();
}
state = (*it).second;
if(m_acceptingStates.contains(state)) {
return line->string(start, i + 1 - start);
}
}
return QString();
}
bool TextBuffer::save (const QString &filename)
{
// codec must be set!
Q_ASSERT (m_textCodec);
/**
* construct correct filter device and try to open
*/
QIODevice *file = KFilterDev::deviceForFile (filename, m_mimeTypeForFilterDev, false);
if (!file->open (QIODevice::WriteOnly)) {
delete file;
return false;
}
/**
* construct stream + disable Unicode headers
*/
QTextStream stream (file);
stream.setCodec (QTextCodec::codecForName("UTF-16"));
// set the correct codec
stream.setCodec (m_textCodec);
// generate byte order mark?
stream.setGenerateByteOrderMark (generateByteOrderMark());
// our loved eol string ;)
QString eol = "\n"; //m_doc->config()->eolString ();
if (endOfLineMode() == eolDos)
eol = QString ("\r\n");
else if (endOfLineMode() == eolMac)
eol = QString ("\r");
// just dump the lines out ;)
for (int i = 0; i < m_lines; ++i)
{
// get line to save
Kate::TextLine textline = line (i);
// strip trailing spaces
if (m_removeTrailingSpaces)
{
int lastChar = textline->lastChar();
if (lastChar > -1)
{
stream << textline->text().left (lastChar+1);
}
}
else // simple, dump the line
stream << textline->text();
// append correct end of line string
if ((i+1) < m_lines)
stream << eol;
}
// flush stream
stream.flush ();
// close and delete file
file->close ();
delete file;
#ifndef Q_OS_WIN
// ensure that the file is written to disk
// we crete new qfile, as the above might be wrapper around compression
QFile syncFile (filename);
syncFile.open (QIODevice::ReadOnly);
#ifdef HAVE_FDATASYNC
fdatasync (syncFile.handle());
#else
fsync (syncFile.handle());
#endif
#endif
// did save work?
bool ok = stream.status() == QTextStream::Ok;
// remember this revision as last saved if we had success!
if (ok)
m_history.setLastSavedRevision ();
// report CODEC + ERRORS
kDebug (13020) << "Saved file " << filename << "with codec" << m_textCodec->name()
<< (ok ? "without" : "with") << "errors";
// emit signal on success
if (ok)
emit saved (filename);
// return success or not
return ok;
}
QList<QTextLayout::FormatRange> KateRenderer::decorationsForLine( const Kate::TextLine& textLine, int line, bool selectionsOnly, KateRenderRange* completionHighlight, bool completionSelected ) const
{
QList<QTextLayout::FormatRange> newHighlight;
// Don't compute the highlighting if there isn't going to be any highlighting
QList<Kate::TextRange *> rangesWithAttributes = m_doc->buffer().rangesForLine (line, m_printerFriendly ? 0 : m_view, true);
if (selectionsOnly || textLine->attributesList().count() || rangesWithAttributes.count()) {
RenderRangeList renderRanges;
// Add the inbuilt highlighting to the list
NormalRenderRange* inbuiltHighlight = new NormalRenderRange();
const QVector<Kate::TextLineData::Attribute> &al = textLine->attributesList();
for (int i = 0; i < al.count(); ++i)
if (al[i].length > 0 && al[i].attributeValue > 0)
inbuiltHighlight->addRange(new KTextEditor::Range(KTextEditor::Cursor(line, al[i].offset), al[i].length), specificAttribute(al[i].attributeValue));
renderRanges.append(inbuiltHighlight);
if (!completionHighlight) {
// check for dynamic hl stuff
const QSet<Kate::TextRange *> *rangesMouseIn = m_view ? m_view->rangesMouseIn () : 0;
const QSet<Kate::TextRange *> *rangesCaretIn = m_view ? m_view->rangesCaretIn () : 0;
bool anyDynamicHlsActive = m_view && (!rangesMouseIn->empty() || !rangesCaretIn->empty());
// sort all ranges, we want that the most specific ranges win during rendering, multiple equal ranges are kind of random, still better than old smart rangs behavior ;)
qSort (rangesWithAttributes.begin(), rangesWithAttributes.end(), rangeLessThanForRenderer);
// loop over all ranges
for (int i = 0; i < rangesWithAttributes.size(); ++i) {
// real range
Kate::TextRange *kateRange = rangesWithAttributes[i];
// calculate attribute, default: normal attribute
KTextEditor::Attribute::Ptr attribute = kateRange->attribute();
if (anyDynamicHlsActive) {
// check mouse in
if (KTextEditor::Attribute::Ptr attributeMouseIn = attribute->dynamicAttribute (KTextEditor::Attribute::ActivateMouseIn)) {
if (rangesMouseIn->contains (kateRange))
attribute = attributeMouseIn;
}
// check caret in
if (KTextEditor::Attribute::Ptr attributeCaretIn = attribute->dynamicAttribute (KTextEditor::Attribute::ActivateCaretIn)) {
if (rangesCaretIn->contains (kateRange))
attribute = attributeCaretIn;
}
}
// span range
NormalRenderRange *additionaHl = new NormalRenderRange();
additionaHl->addRange(new KTextEditor::Range (*kateRange), attribute);
renderRanges.append(additionaHl);
}
} else {
// Add the code completion arbitrary highlight to the list
renderRanges.append(completionHighlight);
}
// Add selection highlighting if we're creating the selection decorations
if ((selectionsOnly && showSelections() && m_view->selection()) || (completionHighlight && completionSelected) || m_view->blockSelection()) {
NormalRenderRange* selectionHighlight = new NormalRenderRange();
// Set up the selection background attribute TODO: move this elsewhere, eg. into the config?
static KTextEditor::Attribute::Ptr backgroundAttribute;
if (!backgroundAttribute)
backgroundAttribute = KTextEditor::Attribute::Ptr(new KTextEditor::Attribute());
backgroundAttribute->setBackground(config()->selectionColor());
backgroundAttribute->setForeground(attribute(KTextEditor::HighlightInterface::dsNormal)->selectedForeground().color());
// Create a range for the current selection
if (completionHighlight && completionSelected)
selectionHighlight->addRange(new KTextEditor::Range(line, 0, line + 1, 0), backgroundAttribute);
else
if(m_view->blockSelection() && m_view->selectionRange().overlapsLine(line))
selectionHighlight->addRange(new KTextEditor::Range(m_doc->rangeOnLine(m_view->selectionRange(), line)), backgroundAttribute);
else {
selectionHighlight->addRange(new KTextEditor::Range(m_view->selectionRange()), backgroundAttribute);
}
renderRanges.append(selectionHighlight);
// highlighting for the vi visual modes
}
KTextEditor::Cursor currentPosition, endPosition;
// Calculate the range which we need to iterate in order to get the highlighting for just this line
if (selectionsOnly) {
if(m_view->blockSelection()) {
KTextEditor::Range subRange = m_doc->rangeOnLine(m_view->selectionRange(), line);
currentPosition = subRange.start();
endPosition = subRange.end();
} else {
KTextEditor::Range rangeNeeded = m_view->selectionRange() & KTextEditor::Range(line, 0, line + 1, 0);
currentPosition = qMax(KTextEditor::Cursor(line, 0), rangeNeeded.start());
endPosition = qMin(KTextEditor::Cursor(line + 1, 0), rangeNeeded.end());
}
} else {
currentPosition = KTextEditor::Cursor(line, 0);
endPosition = KTextEditor::Cursor(line + 1, 0);
}
// Main iterative loop. This walks through each set of highlighting ranges, and stops each
// time the highlighting changes. It then creates the corresponding QTextLayout::FormatRanges.
while (currentPosition < endPosition) {
renderRanges.advanceTo(currentPosition);
if (!renderRanges.hasAttribute()) {
// No attribute, don't need to create a FormatRange for this text range
currentPosition = renderRanges.nextBoundary();
continue;
}
KTextEditor::Cursor nextPosition = renderRanges.nextBoundary();
// Create the format range and populate with the correct start, length and format info
QTextLayout::FormatRange fr;
fr.start = currentPosition.column();
if (nextPosition < endPosition || endPosition.line() <= line) {
fr.length = nextPosition.column() - currentPosition.column();
} else {
// +1 to force background drawing at the end of the line when it's warranted
fr.length = textLine->length() - currentPosition.column() + 1;
}
KTextEditor::Attribute::Ptr a = renderRanges.generateAttribute();
if (a) {
fr.format = *a;
if(selectionsOnly) {
assignSelectionBrushesFromAttribute(fr, *a);
}
}
newHighlight.append(fr);
currentPosition = nextPosition;
}
if (completionHighlight)
// Don't delete external completion render range
renderRanges.removeAll(completionHighlight);
qDeleteAll(renderRanges);
}
return newHighlight;
}