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Amelioration de la vitesse du rectangle de selection

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@70 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
xavierqet
2007-02-25 17:53:16 +00:00
parent feaa1f39dd
commit 6d5927cbe7
4 changed files with 20 additions and 4 deletions
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16
diagram.cpp
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@@ -20,7 +20,7 @@ Diagram::Diagram(QObject *parent) : QGraphicsScene(parent) {
poseur_de_conducer -> setLine(QLineF(QPointF(0.0, 0.0), QPointF(0.0, 0.0)));
draw_grid = true;
use_border = true;
connect(this, SIGNAL(changed(const QList<QRectF> &)), this, SLOT(slot_checkSelectionChange()));
connect(this, SIGNAL(changed(const QList<QRectF> &)), this, SLOT(slot_checkSelectionEmptinessChange()));
}
/**
@@ -340,6 +340,20 @@ void Diagram::slot_checkSelectionChange() {
cache_selecteditems = selecteditems;
}
/**
Verifie si la selection est passe d'un etat ou elle est vide a un etat ou
elle ne l'est pas, et inversement. Si c'est le cas, le signal
EmptinessChanged() est emis.
*/
void Diagram::slot_checkSelectionEmptinessChange() {
static bool selection_was_empty = true;
bool selection_is_empty = selectedItems().isEmpty();
if (selection_was_empty != selection_is_empty) {
emit(selectionEmptinessChanged());
selection_was_empty = selection_is_empty;
}
}
/**
@return Le rectangle (coordonnees par rapport a la scene) delimitant le bord du schema
*/