QGraphicsScene clear() problems
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I have this custom class which inherits from QGraphicsRectItem.
[code]
class CellGraphic : public QGraphicsRectItem
{
private:
static QColor active, inactive, noConnection;Cell *cell; bool isBorderCell;// Various functions
}[/code]I create a number of these on the heap and add them to a QGraphicsScene object. Every once in a while I need to dump them and create the scene from scratch, so I empty the scene by calling clear() and then create new ones which I add to the scene.
This works as expected, but only until they've received a manual call to the update() function. Here is the paint function:
[code]void CellGraphic::paint(QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget){if(cell == nullptr || isBorderCell) painter->fillRect(rect(), noConnection); else if(!cell->currentState) painter->fillRect(rect(), inactive); else painter->fillRect(rect(), active); painter->drawRect((rect()));}[/code]
When I clear the scene after the object has been drawn with the last 'else' condition, the debugger immediately takes me to a heap breakpoint.
If I'm in release mode the program works as expected, though I may be seeing a slight memory leak. It's a bit difficult to determine without more extensive testing.
Anyway, being new at Qt and not very experienced in C++ I guess I'm just wondering what I'm doing wrong here. I was under the impression that the scene would handle the objects once added, and that clear() would delete them properly.
edit
Nevermind, just me being an idiot. I fixed a tricky invalid pointer problem elsewhere in the code that must have been corrupting the CellGraphic objects, because clearing the container works flawlessly now.
