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Optimisation du deplacement des elements

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@122 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
xavierqet
2007-09-15 22:14:23 +00:00
parent 55c79617e1
commit 271775c8a4
5 changed files with 102 additions and 29 deletions
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39
diagram.cpp
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@@ -379,3 +379,42 @@ QRectF Diagram::border() const {
);
}
/// oublie la liste des elements et conducteurs en mouvement
void Diagram::invalidateMovedElements() {
if (!moved_elements_fetched) return;
moved_elements_fetched = false;
elements_to_move.clear();
conducers_to_move.clear();
conducers_to_update.clear();
}
/// reconstruit la liste des elements et conducteurs en mouvement
void Diagram::fetchMovedElements() {
// recupere les elements deplaces
foreach (QGraphicsItem *item, selectedItems()) {
if (Element *elmt = qgraphicsitem_cast<Element *>(item)) {
elements_to_move << elmt;
}
}
// pour chaque element deplace, determine les conducteurs qui seront modifies
foreach(Element *elmt, elements_to_move) {
foreach(Terminal *terminal, elmt -> terminals()) {
foreach(Conducer *conducer, terminal -> conducers()) {
Terminal *other_terminal;
if (conducer -> terminal1 == terminal) {
other_terminal = conducer -> terminal2;
} else {
other_terminal = conducer -> terminal1;
}
// si les deux elements du conducteur sont deplaces
if (elements_to_move.contains(static_cast<Element *>(other_terminal -> parentItem()))) {
conducers_to_move << conducer;
} else {
conducers_to_update.insert(conducer, terminal);
}
}
}
}
moved_elements_fetched = true;
}