/*!
*/
bool QFoldPanel::paint(QPainter *p, QEditor *e)
{
QDocument *doc = editor()->document();
QLanguageDefinition *def = e->languageDefinition();
if ( !def || !doc )
{
return true;
}
m_rects.clear();
m_lines.clear();
bool bVisible = false; //,
// inCursorBlock = false;
int endHighlightLineNr = -1;
int pos,
max = doc->lines(),
ls = doc->getLineSpacing(),
pageBottom = e->viewport()->height(),
contentsY = e->verticalOffset();
int xMid = 6,
iconSize = 9,
yIconOffset = (ls - iconSize) / 2;
pos = - contentsY;
//qDebug("beg pos : %i", pos);
p->save();
QPen linePen(QColor(128,0,128));
linePen.setWidth(3);
linePen.setCapStyle(Qt::FlatCap);
p->setPen(linePen);
QFoldedLineIterator fli = def->foldedLineIterator(doc);
for (; fli.lineNr<max; ++fli) {
if ( pos > pageBottom )
break;
const QDocumentLine &line=fli.line;
if ( fli.lineFlagsInvalid() ){
//correct folding when the folding of the current line is invalid
//problems: slow (but O(n) like the paint method is anyways), doesn't work if panel is hidden
//pro: simple, doesn't correct invalid, but invisible folding (e.g. like folding that is only temporary invalid, until the user writes a closing bracket; otherwise writing $$ would expand every folded $-block)
doc->correctFolding(fli.lineNr, doc->lines()); //this will again call paint
break;
}
if ( line.isHidden() ) {
continue;
}
int len = ls * line.lineSpan();
bVisible = ((pos + len) >= 0);
if (bVisible) {
if ( fli.open ) {
if ( line.hasFlag(QDocumentLine::CollapsedBlockStart) ) {
// line above icon
int topLineEnd = yIconOffset-1;
if (topLineEnd > 0 && fli.lineNr <= endHighlightLineNr)
p->drawLine(xMid, pos, xMid, pos + topLineEnd);
// draw icon
m_lines << fli.lineNr;
m_rects << drawIcon(p, e, 2, pos + yIconOffset, true, fli.lineNr == m_lastMouseLine);
// line below icon
int bottomLineStart = yIconOffset + iconSize + 1;
if (bottomLineStart < len && fli.lineNr < endHighlightLineNr)
p->drawLine(xMid, pos + bottomLineStart, xMid, pos + len);
} else {
// line above icon
int topLineEnd = yIconOffset;
if (topLineEnd > 0 && fli.lineNr <= endHighlightLineNr)
p->drawLine(xMid, pos, xMid, pos + topLineEnd);
// draw icon
m_lines << fli.lineNr;
m_rects << drawIcon(p, e, 2, pos + yIconOffset, false, fli.lineNr == m_lastMouseLine);
if (fli.lineNr == m_lastMouseLine) {
QFoldedLineIterator findEnd = fli;
findEnd.incrementUntilBlockEnd();
endHighlightLineNr = findEnd.lineNr;
}
// line below icon
int bottomLineStart = yIconOffset + iconSize;
if ( bottomLineStart < len && fli.lineNr < endHighlightLineNr)
p->drawLine(xMid, pos + bottomLineStart, xMid, pos + len);
}
} else if (fli.lineNr <= endHighlightLineNr) {
if ( fli.lineNr == endHighlightLineNr ) {
int mid = pos + len - ls / 6;
p->drawLine(xMid, pos, xMid, mid); // line ending here
} else {
p->drawLine(xMid, pos, xMid, pos + len); // line continues
}
}
}
pos += len;
}
p->restore();
return true;
}
/*!
*/
bool QFoldPanel::paint(QPainter *p, QEditor *e)
{
QDocument *doc = editor()->document();
QLanguageDefinition *def = e->languageDefinition();
if ( !def || !doc )
{
return true;
}
m_rects.clear();
m_lines.clear();
bool bVisible = false; //,
// inCursorBlock = false;
int pos,
max = doc->lines(),
ls = doc->getLineSpacing(),
pageBottom = e->viewport()->height(),
contentsY = e->verticalOffset();
pos = - contentsY;
//qDebug("beg pos : %i", pos);
QFoldedLineIterator fli = def->foldedLineIterator(doc);
bool oldFolding=false;
for (; fli.lineNr<max; ++fli)
{
if ( pos > pageBottom )
break;
const QDocumentLine &line=fli.line;
if ( fli.lineFlagsInvalid() ){
//correct folding when the folding of the current line is invalid
//problems: slow (but O(n) like the paint method is anyways), doesn't work if panel is hidden
//pro: simple, doesn't correct invalid, but invisible folding (e.g. like folding that is only temporary invalid, until the user writes a closing bracket; otherwise writing $$ would expand every folded $-block)
doc->correctFolding(fli.lineNr, doc->lines()); //this will again call paint
return true;
}
if ( line.isHidden() )
{
continue;
}
int len = ls * line.lineSpan();
// bool oldFolding = !fli.openParentheses.empty() && fli.openParentheses.first().line!=fli.lineNr;
bVisible = ((pos + len) >= 0);
if ( fli.open )
{
if ( line.hasFlag(QDocumentLine::CollapsedBlockStart) )
{
// outermost block folded : none of the opening is actually opened
int bound = (ls - 8) / 2;
int mid = pos + len - ls / 6;
if ( bVisible )
{
// draw icon
if ( bound > 0 && oldFolding )
{
p->drawLine(7, pos, 7, pos + bound);
}
if ( fli.close )
{
p->drawLine(7, pos + 8 + bound, 7, mid);
p->drawLine(7, mid, 12, mid);
}
m_lines << fli.lineNr;
m_rects << drawIcon(p, e, 3, pos + bound, true);
}
int firstParenthesisPos = fli.openParentheses.size() - fli.open;
const FoldedParenthesis firstParenthesis = fli.openParentheses[firstParenthesisPos];
while (fli.lineNr<doc->lines() &&
firstParenthesisPos<fli.openParentheses.size() &&
fli.openParentheses[firstParenthesisPos] == firstParenthesis){
if (fli.lineNr < doc->lines()-1 && !doc->line(fli.lineNr+1).isHidden()) {
if ( bVisible )
p->drawLine(7, pos + 8 + bound, 7, pos + len);
break;
}
++fli;
}
if ( bVisible && !fli.openParentheses.empty() )
{
if ( fli.close )
p->drawLine(7, mid, 7, pos + len);
else
p->drawLine(7, pos + 8 + bound, 7, pos + len);
}
} else {
if ( bVisible )
{
int bound = (ls - 8) / 2;
if ( oldFolding && bound > 0 )
p->drawLine(7, pos, 7, pos + bound);
m_lines << fli.lineNr;
m_rects << drawIcon(p, e, 3, pos + bound, false);
int mid = pos + len - ls / 6;
if ( fli.close )
p->drawLine(7, mid, 12, mid);
if ( bound > 0 )
p->drawLine(7, pos + 8 + bound, 7, pos + len);
}
}
} else if ( (oldFolding) && bVisible ) {
if ( fli.close )
{
int mid = pos + len - ls / 6;
p->drawLine(7, pos, 7, mid);
p->drawLine(7, mid, 12, mid);
if ( !fli.openParentheses.empty() )
p->drawLine(7, pos, 7, pos + len);
} else {
p->drawLine(7, pos, 7, pos + len);
}
}
pos += len;
oldFolding=!fli.openParentheses.empty();
}
return true;
}
