QMdiSubWindow Questions

[TMan]

You could sublcass QMdiSubWindow and implement the moveevent/resizeevent handlers there I guess.

However, probably someone will turn up in this thread with a better solution

[ericV]

The problem is how do I generate a move/resize Event in my subwindow from my widget or without the frame?

I have the following code in one of my Widgets. Right now it handles the moving of the widget with its parent and seting the proper resize cursors when hovering the edges.
But Idealy i would like to ignore the event here and handle it in the subwindow...
Im not sure if I can do that. I will try to give that a try tomorrow

void DisplayComponent::mousePressEvent(QMouseEvent *me)
{
    me->accept(); // do not propagate
 
    if(me->buttons() == Qt::LeftButton)
    {
        if(canResize){
 
            return QWidget::resizeEvent(dynamic_cast<QResizeEvent*> (me));
        }
        isMoving = true;
    if (parentWidget()->isWindow())
        offset = me->globalPos() - pos();
    else
        offset = me->pos();
    }
}
 
void DisplayComponent::mouseReleaseEvent(QMouseEvent *me)
{
 
    me->accept(); // do not propagate
 
    if(isMoving)
    {
        offset = QPoint();
        isMoving = false;
    }
 
}
 
void DisplayComponent::mouseMoveEvent(QMouseEvent *me)
{
    me->accept(); // do not propagate
 
    if (isMoving)
    {
        if (parentWidget()->isWindow())
            parentWidget()->move(me->globalPos() - offset);
        else
            parentWidget()->move(parentWidget()->mapToParent(me->pos() - offset));
        return;
    }
 
    canResize = false;
    setCursor(Qt::ArrowCursor);
    int mouseX = me->pos().x();
    int mouseY = me->pos().y();
    int frameTopLeft = frameWidth();
    int frameBottom = rect().bottom() - frameWidth();
    int frameRight = rect().right() - frameWidth();
 
    if (mouseX < frameTopLeft)
    {
        canResize = true;
        if (mouseY < frameTopLeft)
        {
        //isTopLeft();
            setCursor(Qt::SizeFDiagCursor);
            return;
        }
        if (mouseY > frameBottom)
        {
        //isBottomLeft();
            setCursor(Qt::SizeBDiagCursor);
            return;
        }
        //isLeft();
        setCursor(Qt::SizeHorCursor);
        return;
    }
    if (mouseX > frameRight)
    {
        canResize = true;
        if (mouseY < frameTopLeft)
        {
        //isTopRight;
            setCursor(Qt::SizeBDiagCursor);
            return;
        }
        if (mouseY > frameBottom)
        {
        //isBottomRight;
            setCursor(Qt::SizeFDiagCursor);
            return;
        }
        //isRight;
        setCursor(Qt::SizeHorCursor);
        return;
    }
    if(mouseY < frameTopLeft)
    {
        //isTop;
        canResize = true;
        setCursor(Qt::SizeVerCursor);
        return;
    }
    if(mouseY > frameBottom)
    {
        //isBottom;
        canResize = true;
        setCursor(Qt::SizeVerCursor);
        return;
    }
    //isNormal;
    canResize = false;
    setCursor(Qt::ArrowCursor);
}

void DisplayComponent::mousePressEvent(QMouseEvent *me)
{
    me->accept(); // do not propagate

    if(me->buttons() == Qt::LeftButton)
    {
        if(canResize){

            return QWidget::resizeEvent(dynamic_cast<QResizeEvent*> (me));
        }
        isMoving = true;
    if (parentWidget()->isWindow())
        offset = me->globalPos() - pos();
    else
        offset = me->pos();
    }
}

void DisplayComponent::mouseReleaseEvent(QMouseEvent *me)
{

    me->accept(); // do not propagate

    if(isMoving)
    {
        offset = QPoint();
        isMoving = false;
    }

}

void DisplayComponent::mouseMoveEvent(QMouseEvent *me)
{
    me->accept(); // do not propagate

    if (isMoving)
    {
        if (parentWidget()->isWindow())
            parentWidget()->move(me->globalPos() - offset);
        else
            parentWidget()->move(parentWidget()->mapToParent(me->pos() - offset));
        return;
    }

    canResize = false;
    setCursor(Qt::ArrowCursor);
    int mouseX = me->pos().x();
    int mouseY = me->pos().y();
    int frameTopLeft = frameWidth();
    int frameBottom = rect().bottom() - frameWidth();
    int frameRight = rect().right() - frameWidth();

    if (mouseX < frameTopLeft)
    {
        canResize = true;
        if (mouseY < frameTopLeft)
        {
        //isTopLeft();
            setCursor(Qt::SizeFDiagCursor);
            return;
        }
        if (mouseY > frameBottom)
        {
        //isBottomLeft();
            setCursor(Qt::SizeBDiagCursor);
            return;
        }
        //isLeft();
        setCursor(Qt::SizeHorCursor);
        return;
    }
    if (mouseX > frameRight)
    {
        canResize = true;
        if (mouseY < frameTopLeft)
        {
        //isTopRight;
            setCursor(Qt::SizeBDiagCursor);
            return;
        }
        if (mouseY > frameBottom)
        {
        //isBottomRight;
            setCursor(Qt::SizeFDiagCursor);
            return;
        }
        //isRight;
        setCursor(Qt::SizeHorCursor);
        return;
    }
    if(mouseY < frameTopLeft)
    {
        //isTop;
        canResize = true;
        setCursor(Qt::SizeVerCursor);
        return;
    }
    if(mouseY > frameBottom)
    {
        //isBottom;
        canResize = true;
        setCursor(Qt::SizeVerCursor);
        return;
    }
    //isNormal;
    canResize = false;
    setCursor(Qt::ArrowCursor);
}

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