How do I suppress scrolling of a ScrollPane via MouseWheel ?

Hi all!
I'm trying to suppress the scrolling via MouseWheel if the user has pressed the control key at time of scrolling, but I'm not able to do it. It doesn't matter at which node I add the ScrollEvent handler. The problem is, the ScrollEvent handler gets only called if the scrollbar reaches the end or the start of the scrollbar, only then the event is triggered.
I tried to disable the scrolling alltogether. I have set the method setOnScrolling(null) of the ScrollPane and afterwards I tried to replaced it with my own handler, but it didn't work.
I use the JavaFX 2.0.2 SDK. It seems like there was a bug report that could be related to this [RT-17890|http://javafx-jira.kenai.com/browse/RT-17890]. If I use the deprecated MouseEvent.IMPL_MOUSE_WHEEL_ROTATED the handler gets called, but still I'm not able to suppress the scrolling if the control or any key is pressed.
Did anybody observe the same behavior of the ScrollPane and ScrollEvent ?
EDIT: Hmm. it seems like I have to add an EventFilter instead to an simple EventHandler.
Edited by: user965407 on 26.01.2012 13:52

it seems like I have to add an EventFilter instead to an simple EventHandler.Yes, that is right, catch the ScrollEvent in an EventFilter installed on the ScrollPane and consume the event if scrollEvent.isScrollDown() returns true.
To better understand event handling see: http://docs.oracle.com/javafx/2.0/events/jfxpub-events.htm and Re: Understanding Mouse Event Bubbling

Similar Messages

How to re-position scroll pane contents?

I have a JSplitPane where the top half of the component contains a list of topics and the bottom half contains a scroll pane with a text area inside it. The user clicks a list item and the text for it is shown below it.
The problems is when the text area exceeds the viewable area, the bottom-most portion of the text is shown instead of the top-most portion. In other words, if the text contains 6 lines and the viewable area is 4 lines, I'm seeing lines 3-6 instead of 1-4.
One would think this is a very easy solution, such as:
SplitTextScrollPane.getVerticalScrollBar().setValue(0);
However, that doesn't work (at least not in JDK 1.3.0c). How do you programatically scroll the text back to the top line?
Thank you.

Thanks, that worked.
I'm still a little curious about how to manually control the position of a scrollpane's contents -- for example, when the scroll pane contains things besides a text area (such as a JList or something).

How can i suppress columns in ALV ?? Will reward points.

Hello Gurus, how can i suppress column in ALV when i`m using the transparent table:
CALL METHOD grid->set_table_for_first_display
      EXPORTING
        i_structure_name = 'ZIANEXE'
        is_layout        = wa_layout
        is_variant       = wa_variant
        i_save           = 'U'
        IT_TOOLBAR_EXCLUDING = LT_EXCLUDE
      CHANGING
        it_outtab        = itab[]
        it_fieldcatalog = fieldcat.
Please help.

in the fieldcatalog you are providing there is a field NO_OUT use this.
Loop over internal table and check fieldname. If fieldname = column you want to hide, NO_OUT = 'X'.
Edited by: Micky Oestreich on May 8, 2008 12:06 PM

Restoring new mini from icloud backup: how do you suppress multiple itunes accounts

I am setting up my wife's mini. We backed up her iPad gen 3 to iCloud. When setting up mini from icloud it askes for passwords for iTunes accounts belonging to son and daughter. They used their accounts to load apps fr me on my iPad. I do not have their passwords. How do I suppress the accounts on iPad so it does not try to retstore the apps they bought for me. Thanks.

Your title and the text in the post say two different things.
Your title says you are restoring from an iCloud backup.
Your post says you are doing an "iCloud installation". Admittedly, I don't know exactly what that means.
Please describe the exact symptom(s) you are observing, and whether whatever activity that is under way is providing evidence of proceeding.

How to add a scrolling text in portrait with iMovie

how to add a scrolling text in portrait with iMovie

This is how i was able to do it. Edit html source.
<div align="center"><marquee id='scroll_news4' bgcolor=#ff9966 "><font color="#000000" size="+1" ><strong>Outlook is down! IT is working on it! </strong></font></marquee></div>
<input type='Button' value='Stop' id ='b1' onClick='button_click()';>
<SCRIPT LANGUAGE="JavaScript">

</script>

When I have two clips, one above the other, I would like to hear the audio from one at a time. How do I suppress temporarily one of that, in a easier way? Thank you.

When I have two clips, one above the other, I would like to hear the audio from one at a time. How do I suppress temporarily one of that, in a easier way? Thank you.

I would think you would drop down the audio level lines in the "Stereo" tab (FCP 6.0.6 view to me) in the clip's video window.
But then again, in my old version, I can't play two clips at once. But I figure if the newer FCP allow you to do that, then that's what I would do.

How do you suppress page numbers. I am trying to print a screenplay for the first time since switching to Pages and I can't suppress Page

How do you suppress page numbers. I am trying to print a screenplay for the first time since switching to Pages and I can't suppress Page #1 without making the rest of the pages inaccurate, as page #1 is the Title Page. Does anyone have any suggestions?

When you signed to be able to post in the forums, you were urged to read and accept the Terms of Use ruling these forums.
They claim :
The contents of the "More Like This" box prove that applying the rules you would have get the wanted explanations without creating this new thread.
Yvan KOENIG (VALLAURIS, France) mardi 26 avril 2011 10:04:03

How to get motion scroll in adobe muse?

I can't find motion scroll effect in Window Menu and properties bar. So how to get motion scroll in adobe muse. U have any idea?

Hi,
could you please add a screenshot of the windows tab so that we can see what is wrong?

How could control the scroll events in ALV OO?

Hello experts!
I'm programing a report, inside there is a field that need time of processing. I'm using ALV OO.
I have thought that it could only calculate the field for the lines that visualize.
How could control the scroll events to calculate the field of the visualized lines?
I'm using CL_SALV_TABLE class and cl_salv_events_table to control the events, but there aren't any event to control the scroll.
best regards!

Hi Sriram,
I did view the information that you was attaching, but this don't resolve my problem. With methods get_scroll_info_via_id and set_scroll_info_via_id, we can get and put information of selection and view rows in the screen but we don't control when the user click in the scroll for advance or to back down a page.
I would like to refresh the data in ALV when the user view news rows.
I want your genial ideas.
Best regards!

How to make a scroll Bar with buttons

Hi all,
I am using Flash cs6 on an iMAC running 10.7.2
I would like to know if anyone could please point me to a tutorial, showing "how to create a scroll bar with buttons". I am having a heck of a time finding a tutorial.
Many thanks in advance.
regards,
DH

http://learnola.com/2008/10/27/flash-tutorial-create-a-custom-scrollbar-with-actionscript/

How to add a scroll bar within a view window ?I want to display x and y axis outside the scoll window and keep those axis static and move the graph within scroll area

how to add a scroll bar within a view window ?I want to display x and y axis outside the scoll window and keep those axis static and move the graph within scroll area
ananya

Hey Ananya,
I believe what you want to do is possible, but it will not be
easy. If you want to add a scroll bar that will scroll the graph
back and forth but keep the axis set, you would want to add a
horizontal or vertical scrollbar. Then you would create an event
handler for the scroll event. You would have to manually plot
different data within this scroll event. Unfortunately, there is
not really a built in way to do this with the Measurement Studio plot
control.
Thanks,
Pat P.
Software Engineer
National Instruments

How to get a scroll bar to the applications popup by default?

How to get a scroll bar to the applications popup by default when clicked the applications folder from the dock? If I have so many applications that they do not fit in the default area, I have to find out myselft that I have to scroll the content before the scroll bar appears. This leads to "where is my missing applications questions" by the novice users with Mountain Lion.

System Preferences > General > Show scroll bars.
Click the button by the side of "Always".
Best.

How to add the scroll bar in the vertical photo gallery?

like this, how to add the scroll bar? http://www.flashvault.net/tutorial.asp?ID=288 Thanks,

I want to know how to add a vertical scroll bar in the photo gallery which I copied from the tutorial. And add the event to catch MouseEvent.CLICK for each photo. Please advise. Thanks,

How do I get scroll bars to work

I get a vertical scroll bar where I don't want one. The horizontal one (see attachment) is needed as the form gets quite wide when it is in Spanish. But despite turning off verticalScrollPolicy everywhere, one of them still appears.
<mx:AddChild relativeTo="{bodyFormHolder}" position="firstChild">
<mx:VBox id="resultsPageBox"
backgroundColor="#dedacf"
width="100%"
height="100%"
verticalScrollPolicy="off" horizontalScrollPolicy="off">
<mx:HBox id="rAccessHBox"
    minWidth="640" width="100%"
    x="0" y="0">
</mx:HBox>


<mx:VBox id="topResultBox"
    verticalScrollPolicy="off" horizontalScrollPolicy="off"
    width="100%"
    styleName="backColor" >
</mx:VBox>
<mx:HBox id="bothSides"
    verticalScrollPolicy="off"
    width="100%"
    height="100%">
    
    
    <mx:VBox id="leftSideCanvas"
        verticalScrollPolicy="off"
        width="50%"
        height="100%"
        focusEnabled="false"
        styleName="backColor">
    </mx:VBox>
    
    
    <mx:VBox id="rightSideCanvas"
        verticalScrollPolicy="off"
        backgroundColor="#dedacf"
        y="0"
        width="50%"
        height="100%">
    </mx:VBox>

A bigger question is how to get the scroll bars to work from the keyboard. The problem is to be accessible, the application must be available to blind or physically handicapped people that can't use a mouse.
To get the entire form read requires horizonal scrolling in some cases such as when it is in Spanish or the font size it increased a lot. Now, a horizontal scroll bar appears and is easily movable via the mouse, but we have to have it move without a mouse.
I found the vertical bar came from the form object and I eliminated that, but the bigger issue still remains.

How to create 2 scroll bar in 2 canvas

Hello All,
I will appreciate if somebody knows how to create 2 scroll bars in 2 Content canvases and all items text item belongs to one data block.
In data block property it shows only one scroll bar. Their is no property of scroll bar in canvas.
Regards,
Atif

Go to the layout editor.
Take the Stacked canvas tool in the toolbox
draw a stacked canvas on the content canvas (the stacked can could be larger than the content one)
edit you item properties to display on the content canvas
adjust the window to the same width and weight properties than the content canvas.
The simplest way it to use the datablock wizard to create the data block, then indicate to show items not on the content canvas but the stacked canvas.
Francois

How do I suppress scrolling of a ScrollPane via MouseWheel ?

Similar Messages

Maybe you are looking for