No mouseButtonRelease detected

[maitrezeta]

Hello !

I'm working on a Warcraft 2-like game, and I'm currently making the selection of several units.

I have a MapView :

#include <QGraphicsView>
 
 
 
class QGraphicsScene;
 
 
 
namespace Interface
 
{
 
    class MainWindow;
 
 
 
    class WarMapView : public QGraphicsView
 
    {
 
        protected:
 
            MainWindow* window;
 
            bool eventFilter(QObject *obj, QEvent *event);
 
 
 
        public:
 
            WarMapView(QGraphicsScene* scene, MainWindow* parent = 0);
 
            void update();
 
    };
 
}

#include <QGraphicsView>



class QGraphicsScene;



namespace Interface

{

    class MainWindow;



    class WarMapView : public QGraphicsView

    {

        protected:

            MainWindow* window;

            bool eventFilter(QObject *obj, QEvent *event);



        public:

            WarMapView(QGraphicsScene* scene, MainWindow* parent = 0);

            void update();

    };

}

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The Map View is where there I can see my units and select them. I have already implement something to select just one unit, using MouseButtonPress event like that :

bool WarMapView::eventFilter(QObject *obj, QEvent *event)
 
    {
 
        if(event->type() == QEvent::MouseButtonPress)
 
        {
 
            QMouseEvent* m = dynamic_cast<QMouseEvent*>(event);
 
            QPointF p = mapToScene(mapFromParent(m->pos()));
 
 
 
            // if in the map
 
            int size = GAME.getMap().getSize();
 
            if(p.x() >= 0 && p.y() >= 0 && p.x() < size * BLOCK_SIZE && p.y() < size * BLOCK_SIZE)
 
                GAME.mouseClick(FLOOR(p.x()), FLOOR(p.y()), m->button() == Qt::RightButton);
 //it select the unit
        }
...
}

bool WarMapView::eventFilter(QObject *obj, QEvent *event)

    {

        if(event->type() == QEvent::MouseButtonPress)

        {

            QMouseEvent* m = dynamic_cast<QMouseEvent*>(event);

            QPointF p = mapToScene(mapFromParent(m->pos()));



            // if in the map

            int size = GAME.getMap().getSize();

            if(p.x() >= 0 && p.y() >= 0 && p.x() < size * BLOCK_SIZE && p.y() < size * BLOCK_SIZE)

                GAME.mouseClick(FLOOR(p.x()), FLOOR(p.y()), m->button() == Qt::RightButton);
 //it select the unit
        }
...
}

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It works well.

Now I want to select several units, so I decided to use the MouseButtonRelease. I save the coord of the point where the mouse is pressed, and when it is released I make a rectangle using the coords of the released point, and I select all the units in this rectangle.


The problem is that the MouseButtonRelease Event is not detected :-/ whereas the Press Event works well...
I don't understand where the problem come from.

I've tested it with that code in my event filter :

if(event->type() == QEvent::MouseButtonPress)
 
        {
 
                   qDebug("pressed");
 
        }
 
else if(event->type() == QEvent::MouseButtonRelease)
 
        {
 
              	qDebug("released");
 
        }

if(event->type() == QEvent::MouseButtonPress)

        {

                   qDebug("pressed");

        }
        
else if(event->type() == QEvent::MouseButtonRelease)

        {

              	qDebug("released");

        }

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When I click, for example, 3 times in the map I have in my console :

>pressed
>pressed
>pressed

>pressed
>pressed
>pressed

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And I want to have

>pressed
>released
>pressed
>released
>pressed
>released

>pressed
>released
>pressed
>released
>pressed
>released

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Another problem : I wanted to use the setDragMode(RubberBandDrag) in my MapView to have a nice rectangle, but when I set it, MousePress aren't detected any more :-/

Can someone explain to me what I made wrong ?