[Android] About QT in QGraphicsItem mouse events

RT, as a parent Item QGraphicsItem existing one under which a number of sub- Items inherited from QGraphicsItem How
At this point click on any child Item is not changed when the reaction if a child want to click on the sub- Item Item background color to achieve
I think is to rewrite the sub- Item of MousePressEvent ()
like this
void Item :: MousePressEvent (QGraphics ~ ~ ~ ~ ~ `* enent)
{
this-> setSelected ();
}

void paint (...)
{
...
if (() this-> isSelected)
{
painter-> setBrush (Qt :: black);
}
}
probably thought so, but to no avail , I feel like the mouse down event no quilt Item received , please predecessors wing
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you have not overloaded the QGraphicsScene ; event filter or mousePressEvent way , Graphics inside the event streams are distributed through the scene , if you are in the scene inside the event to swallow , is overloaded mousePressEvent then did not do any treatment, not the event thrown out , which would swallow up the event . Or in the event filter which return true , and more will swallow event , so you are not receiving the item inside the event . Even if you set the focus to the item inside is the same.
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agree
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If you do not scene and view, even an effect could not see, how do the controls do not know .
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Since you use a group of words on the rewrite group of mouse events, do not forget to rewrite boundingRect function that returns the group you need border.
should be no problem. If not enough , you do not have group chanting , trying item put together , define a type , move one time , so that type of move with
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is so I had no contact with QT ; since joining the company recently work requires me to do a thing associated with this
goal is to make a control but unfortunately not on the map

This control is like a QGraphicsItem which contains several sub QGraphicsItem
then be able to connect between the two sub- Item internal representation of the relationship between such controls when the child receives MousePressEvent QGraphicsItem
react when expressed for example change the background color to be selected
So that just do my job does not involve a control QGraphicsScene above this level
And I do not have to rewrite the function Scene Scene default event on the inside of the event will swallow it?
------ eference --------------------------------------- < br> scene and the view with the fact I want to say is whether this control in response to the needs of the event depends on the specific scene ?
If so how events from the scene passed down to what I want to control several functions to be rewritten
QT event mechanism I really thank you very understanding of the
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not need to override function , scene of the event without any treatment on it.
------ eference --------------------------------------- < br> I do not have to handle events inside the Scene
So I now need to implement these functions in the control which need to how to do it ?
------ eference --------------------------------------- < br> how I think you should be able to achieve it / You try

this-> setSelected (); plus behind

qDebug () << "event has taken";
In the painter-> setBrush (Qt :: black); plus behind

qDebug () << "has painted";
look specifically went wrong .


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events seemingly did not respond problem here is not exactly where it spread
I do not have to subclass QGraphicsView and QGraphicsScene

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posted under other code look , generated scenes , and view the piece of code.
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view = new QGraphicsView;
scene = new QGraphicsScene;
scene-> addGroup ( the controls ) ;
like that.
The controls are two parts , the upper part is a QGraphicsItem only display a string
Under section as previously said
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item should be in the top level , the first to receive events should not be no response paitEvent ah ? But I have not used addgroup, before a single item is used , you are not a group to see what a special place
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just found inside the Group to add
void mousePressEvent (QGraphicsSceneMousePressEvent * event)
{
QMessage msg ("Press");
msg.exec ();
}
After running , start point is not included in that group ranges clicking no other part blank Scene dialog box pops up that should be expected
part of the dialog box and then click the Group which is also expected
The key is then either click on a blank area within the Group or other it will pop up a message box . . .
------ eference --------------------------------------- < br> just checked the documents , QGraphicsItemGroup also have BoundingRect virtual functions , rather than directly from the decision which put the item . You are inheriting QGraphicsItemGroup it? Try re- wrote it boundingRect okay . Also installed inside Item you have to write a mouse event , the order of the group receives mouse events and item I did not know . There you can also use the Event Manager to implement these functions it is EventFilter
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Item written inside the mouse event no response
really do not understand ah
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we going to sink . . . . Group class is not the reason ?
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