how obtein the position of the scroll in a scroll bar?

[pabloa]

Hi I would like see the new position of a scroll in a scroll bar? It started in the middle of the bar with

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sb->setScrollPosition(300.0f);

and I move it with the mouse, but It always get me the same position 300. I show it in s static text

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test->setText(CEGUI::PropertyHelper::floatToString(sb->getScrollPosition()));

Why this value didnt changed?

[martignasse]

hi,

did you setup the document size and page size for you'r scrollbar ?

according to the API Reference doc, the formula used to provide you the scroll position surely use them.

hope it help.

[pabloa]

yes I set up them, I used the formula to get the scroll position but didnt work

[CrazyEddie]

The function works ok, since the itegrated scrollbars in list widgets and the demos all use this same function, and they work So, something must be wrong in your app code.

Please post the code showing the creation and initialisation of the scrollbar.

[pabloa]

here you are, I remove the ogre and newton code. I hope it was enought!

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 void createScene(void)
    {
      
        // setup GUI system
       mGUIRenderer = new CEGUI::OgreCEGUIRenderer(mWindow, Ogre::RENDER_QUEUE_OVERLAY, false, 3000);
              mGUISystem = new CEGUI::System(mGUIRenderer);
       CEGUI::Logger::getSingleton().setLoggingLevel(CEGUI::Informative);
 
       CEGUI::SchemeManager::getSingleton().loadScheme((CEGUI::utf8*)"TaharezLook.scheme");
       mGUISystem->setDefaultMouseCursor((CEGUI::utf8*)"TaharezLook", (CEGUI::utf8*)"MouseArrow");
       mGUISystem->setDefaultFont((CEGUI::utf8*)"Tahoma-12");
      mEditorGuiSheet= CEGUI::WindowManager::getSingleton().createWindow((CEGUI::utf8*)"DefaultWindow", (CEGUI::utf8*)"Sheet"); 
       mGUISystem->setGUISheet(mEditorGuiSheet);
  //End setup GUI system

      CEGUI::PushButton* quitButton = (CEGUI::PushButton*)CEGUI::WindowManager::getSingleton().createWindow("TaharezLook/Button", (CEGUI::utf8*)"Quit");
      mEditorGuiSheet->addChildWindow(quitButton);
      quitButton->setPosition(CEGUI::Point(0.96f, 0.002f));
      quitButton->setSize(CEGUI::Size(0.04f, 0.04f));
      quitButton->setText("X");

      CEGUI::Scrollbar*  sb = (CEGUI::Scrollbar*)CEGUI::WindowManager::getSingleton().createWindow("TaharezLook/HorizontalScrollbar", (CEGUI::utf8*)"Vert Scroll 1");
      mEditorGuiSheet->addChildWindow(sb);
       sb->setPosition(CEGUI::Point(0.30f, 0.98f));// posicion horizontal y posicion vertical
       sb->setMinimumSize(CEGUI::Size(0.01f, 0.01f));
       sb->setMaximumSize(CEGUI::Size(0.60f, 0.9f));
       sb->setSize(CEGUI::Size(0.8f, 0.015f)); //tamaño de largo y de ancho
       sb->setDocumentSize(360);
      
      sb->setPageSize(100);
       sb->setStepSize(1);
       sb->setAlwaysOnTop(true);
       sb->setScrollPosition(100.0f);


CEGUI::StaticText* test = (CEGUI::StaticText*)CEGUI::WindowManager::getSingleton().createWindow("TaharezLook/Editbox", (CEGUI::utf8*)"test");
mEditorGuiSheet->addChildWindow(test);
test->setPosition(CEGUI::Point(0.1f, 0.1f));
test->setSize(CEGUI::Size(0.2f, 0.06f));
 test->setText(CEGUI::PropertyHelper::floatToString(sb->getScrollPosition()));*/

  //Ogre Elements

{HERE the rest of my program}


}
   

thank you!

[CrazyEddie]

I think the problem is that you've not subscribed a handler to react when the scrollbar position changes; so the thing gets set once and that's it. You need some code to update the StaticText in response to changes in the scrollbar position.

As a test, I took your code, and added this handler function:

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bool myHandler(const CEGUI::EventArgs& e)
{
    CEGUI::Scrollbar*  sb = (CEGUI::Scrollbar*)CEGUI::WindowManager::getSingleton().getWindow((CEGUI::utf8*)"Vert Scroll 1");
    CEGUI::StaticText* test = (CEGUI::StaticText*)CEGUI::WindowManager::getSingleton().getWindow((CEGUI::utf8*)"test");
    test->setText(CEGUI::PropertyHelper::floatToString(sb->getScrollPosition()));

    return true;
}

And added this line after the rest of the init code in createScene:

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sb->subscribeEvent(CEGUI::Scrollbar::EventScrollPositionChanged, &myHandler);

HTH

CE.

[pabloa]

Oh my god! now run I feel very silly Thanks