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Amelioration du rendu graphique lorsque le zoom est inferieur a 1.0.

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@566 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
xavier
2009-04-05 11:48:26 +00:00
parent 2a6992083d
commit 9a8459db86
7 changed files with 74 additions and 27 deletions
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37
sources/customelement.cpp
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@@ -46,7 +46,8 @@
CustomElement::CustomElement(const ElementsLocation &location, QGraphicsItem *qgi, Diagram *s, int *state) :
FixedElement(qgi, s),
elmt_state(-1),
location_(location)
location_(location),
forbid_antialiasing(false)
{
// recupere la definition de l'element
ElementsCollectionItem *element_item = QETApp::collectionItem(location);
@@ -148,11 +149,13 @@ bool CustomElement::buildFromXml(const QDomElement &xml_def_elmt, int *state) {
// initialisation du QPainter (pour dessiner l'element)
QPainter qp;
qp.begin(&drawing);
QPen t;
t.setColor(Qt::black);
t.setWidthF(1.0);
t.setJoinStyle(Qt::BevelJoin);
qp.setPen(t);
QPainter low_zoom_qp;
low_zoom_qp.begin(&low_zoom_drawing);
QPen tmp;
tmp.setWidthF(1.0); // ligne vaudou pour prise en compte du setCosmetic - ne pas enlever
tmp.setCosmetic(true);
low_zoom_qp.setPen(tmp);
// extrait les noms de la definition XML
names.fromXml(xml_def_elmt);
@@ -169,8 +172,15 @@ bool CustomElement::buildFromXml(const QDomElement &xml_def_elmt, int *state) {
for (QDomNode n = node.firstChild() ; !n.isNull() ; n = n.nextSibling()) {
QDomElement qde = n.toElement();
if (qde.isNull()) continue;
if (parseElement(qde, qp)) ++ parsed_elements_count;
else {
if (parseElement(qde, qp)) {
++ parsed_elements_count;
QString current_tag = qde.tagName();
if (current_tag != "terminal" && current_tag != "input") {
forbid_antialiasing = true;
parseElement(qde, low_zoom_qp);
forbid_antialiasing = false;
}
} else {
if (state) *state = 7;
return(false);
}
@@ -180,6 +190,7 @@ bool CustomElement::buildFromXml(const QDomElement &xml_def_elmt, int *state) {
// fin du dessin
qp.end();
low_zoom_qp.end();
// il doit y avoir au moins un element charge
if (!parsed_elements_count) {
@@ -226,8 +237,12 @@ int CustomElement::terminalsCount() const {
@param qp Le QPainter a utiliser pour dessiner l'element
@param options Les options graphiques
*/
void CustomElement::paint(QPainter *qp, const QStyleOptionGraphicsItem *) {
drawing.play(qp);
void CustomElement::paint(QPainter *qp, const QStyleOptionGraphicsItem *options) {
if (options && options -> levelOfDetail < 1.0) {
low_zoom_drawing.play(qp);
} else {
drawing.play(qp);
}
}
/**
@@ -287,7 +302,6 @@ bool CustomElement::parseLine(QDomElement &e, QPainter &qp) {
t.setJoinStyle(Qt::MiterJoin);
qp.setPen(t);
//qp.drawLine(QLineF(x1, y1, x2, y2));
QLineF line(x1, y1, x2, y2);
QPointF point1(line.p1());
QPointF point2(line.p2());
@@ -604,6 +618,7 @@ Terminal *CustomElement::parseTerminal(QDomElement &e) {
@param aa Booleen a true pour activer l'antialiasing, a false pour le desactiver
*/
void CustomElement::setQPainterAntiAliasing(QPainter &qp, bool aa) {
if (forbid_antialiasing) aa = false;
qp.setRenderHint(QPainter::Antialiasing, aa);
qp.setRenderHint(QPainter::TextAntialiasing, aa);
qp.setRenderHint(QPainter::SmoothPixmapTransform, aa);