QGraphicsItemGroup - draw as QPixmap

[Leszek]

Hello.

I created my own format for reading/writting objects from scene.
It works fine, but when I try to create QPixmap by using QGraphicsItemGroup
I have some problems.

QPixmap pixmap(600, 150);
QPainter painter(&pixmap);
 
... loading data from file....
QGraphicsItem* item = importers.getData().at(0);
QStyleOptionGraphicsItem opt;
painter.setRenderHints(QPainter::Antialiasing);
QGraphicsItemGroup* group = qgraphicsitem_cast<QGraphicsItemGroup*>(item);
 
BOOST_FOREACH(QGraphicsItem* itemc, group->children()) {
        itemc->paint(&painter, &opt);
}
 
scene->addPixmap(pixmap);

QPixmap pixmap(600, 150);
QPainter painter(&pixmap);
    
... loading data from file....
QGraphicsItem* item = importers.getData().at(0);
QStyleOptionGraphicsItem opt;
painter.setRenderHints(QPainter::Antialiasing);
QGraphicsItemGroup* group = qgraphicsitem_cast<QGraphicsItemGroup*>(item);

BOOST_FOREACH(QGraphicsItem* itemc, group->children()) {
        itemc->paint(&painter, &opt);
}

scene->addPixmap(pixmap);

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Below code used to store information:

QDataStream ds;
 
ds << path();
QTransform  parentTransforms;
if(parentItem())
   parentTransforms = parentItem()->transform();
 
ds << parentTransforms;
ds << transform();

QDataStream ds;

ds << path();
QTransform  parentTransforms;
if(parentItem())
   parentTransforms = parentItem()->transform();

ds << parentTransforms;
ds << transform();

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Below code used to load information:

QPainterPath   path;
QTransform     parentTransforms;
QTransform     transforms;
 
ds >> path >> parentTransforms >> transforms;
 
setPath(path);
 
setTransform(parentTransforms);
setTransform(transforms, true);

QPainterPath   path;
QTransform     parentTransforms;
QTransform     transforms;

ds >> path >> parentTransforms >> transforms;

setPath(path);

setTransform(parentTransforms);
setTransform(transforms, true);

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Problem: QPainterPath starts drawing from position ...x=420(before drawing moveTo is called)

What kind of informations should I save for QPainterPath, to restore it corectly ?
Thanks, for reply.

[Leszek]

This problem was reolved in thread
http://www.qtcentre.org/threads/3537...dren.?p=163407