Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. Problem Qt 4.8 + MAC -> mouse buttons after drag and drog
Forum Updated to NodeBB v4.3 + New Features

Problem Qt 4.8 + MAC -> mouse buttons after drag and drog

Scheduled Pinned Locked Moved Solved General and Desktop
12 Posts 2 Posters 3.2k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • D Offline
    D Offline
    devarde
    wrote on last edited by
    #3

    After to finish the drag-and-drop, when I read the mouse state, Qt informs me that the mouse left button is pressed.
    After the drag and drop I need to perform a mouse wheel:

    void MyWidget::doWheel ( QWheelEvent * event )
    {
        if (layerStack)
        {
            layerStack->handleEvent(EventData(event, realWidget));
    
        }
    }
    

    EventData has the following code:

    init(e, e->buttons(), e->modifiers());
    
    void EventData::init(QInputEvent *e, Qt::MouseButtons buttons, Qt::KeyboardModifiers keyboard)
    {
        if (buttons & Qt::LeftButton) {
            modifiers |= MouseEventModifier::Left;
        }
        if (buttons & Qt::RightButton) {
            modifiers |= MouseEventModifier::Right;
        }
        if (buttons & Qt::MidButton) {
            modifiers |= MouseEventModifier::Middle;
        }
        ...
    }
    

    In this moment it recognizes as Qt::LeftButton was active.

    Qt: 4.8.7
    Mac: 10.10.5 (OSX Yosemite)

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #4

      Why do you need that scroll event for ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      0
      • D Offline
        D Offline
        devarde
        wrote on last edited by
        #5

        With drag and drop I drag a image to the main panel.
        In the main panel a image can be actually a series of images. In this case I advance the images scrolling it. It is the purpose of scrolling. It is an event that can be occur any moment after the drag-and-drop.

        If I click on the panel with any mouse button before to scroll, the scroll works, but this is not desirable (the forced click)

        1 Reply Last reply
        0
        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #6

          Why not use scrollTo ?

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          1 Reply Last reply
          0
          • D Offline
            D Offline
            devarde
            wrote on last edited by
            #7

            After so much Googling I found my answer. The problem is a Qt 4.8.x bug on OSX.
            ACcording the issue tracker this question was solved in Qt 5.x

            1 Reply Last reply
            0
            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #8

              Can you share the bug report link ?

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

              D 1 Reply Last reply
              0
              • SGaistS SGaist

                Can you share the bug report link ?

                D Offline
                D Offline
                devarde
                wrote on last edited by
                #9

                @SGaist https://bugreports.qt.io/browse/QTBUG-27634

                I don't have any option to mark this question as solved. Does it because I didn't created it with a question flag or something like that? If you can, I would be glad if you do that to maybe help other users with the same problem.

                1 Reply Last reply
                0
                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #10

                  Don't you have that option with the "Topic Tool" button ?

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                  1 Reply Last reply
                  0
                  • D Offline
                    D Offline
                    devarde
                    wrote on last edited by
                    #11

                    Sorry. I saw all buttons, except that one hehe.

                    1 Reply Last reply
                    0
                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #12

                      No worries, that happens ;)

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                      1 Reply Last reply
                      0

                      • Login

                      • Login or register to search.
                      • First post
                        Last post
                      0
                      • Categories
                      • Recent
                      • Tags
                      • Popular
                      • Users
                      • Groups
                      • Search
                      • Get Qt Extensions
                      • Unsolved