Thread: Re: [Java-gnome-developer] Re: Tree view Expand row signal

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java-gnome-developer

Re: [Java-gnome-developer] Re: Tree view Expand row signal

From: Joao V. <jvi...@ya...> - 2005-03-31 12:56:45

Try using addListener; take a look at the javadoc for TreeViewListener and TreeViewEvent. Here's a
quick example (i didn't compile it, so forgive me for silly errors):

First, if you have a TreeView you'll need an array of DataColumns defining the columns, and a
model object. For the example, it'll be this:

------------------------------------------------------

//The columns
DataColumn cols = {new DataColumnString(), new DataColumnString()};

//the model object
TreeStore model = new TreeStore(cols);

Now continuing with that code...

_treeView.addListener(this);

//Callback
public void treeViewEvent(TreeViewEvent e) {

   if (e.isExpand()) {

      //it's an expand event...
      //let's get the value of the 1st column

      String value = model.getValue (e.getTreeIter(), (DataColumnString) cols[1]);
      System.out.println("value: " + value);
   }
}

------------------------------------------------------


Cheers,
J.V.



--- Manuel Ledesma <man...@co...> wrote:
> I finally got the callback working, But now If I try to use the handlers
> the program is quitting. I read that the GObject.getGObjectFromHandle is
> for internal use but How can I get the row that just expanded.
> 
> example.
> 
> // Callback definition ...
> _treeView.addEventHandler("test-expand-row", "testExpandRow", this,
> result);
> 
> 
> // Callback function
> public boolean testExpandRow(Handle widget, Handle data, Object obj) {
>     GObject test = GObject.getGObjectFromHandle(widget);
> 
>     return true;
> }
> 
> 
> On Wed, 2005-03-30 at 23:07 -0500, Manuel Ledesma wrote:
> 
> > I'm trying to catch the "test-expand-row" signal. I cannot find an
> > example for Java.
> > 
> > Can someone illustrate me ? 
> 

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Re: [Java-gnome-developer] Re: Tree view Expand row signal

From: Joao V. <jvi...@ya...> - 2005-03-31 13:08:12

--- Joao Victor <jvi...@ya...> wrote:
>       String value = model.getValue (e.getTreeIter(), (DataColumnString) cols[1]);

That should be *cols[0]*... duh, sorry.

Cheers,
J.V.



	
	
		
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Re: [Java-gnome-developer] Re: Tree view Expand row signal

From: Manuel L. <man...@co...> - 2005-03-31 23:29:51

I have already tried that and It does not work. This is why? I'm trying
to use the signal. Let me paste my class complete ...

here is the output of this class:
-- row expanded --
test-expand-row
-- row collapsed --
Expanded : false
Expanded : false

The row is expanded but the class does not receive any event, only when
row is collapsed and somehow get called twice. This was my first
approach before trying the signals. Probably there's a bug and event
should happen when row is expanded.


public class DirectoryTree implements TreeViewListener {
	/**
	 * Default constructor
	 */
	public DirectoryTree(TreeView treeView) {
                ... somethig begfore
		_treeView.addListener(this);
	}

	public TreeIter addNode(TreeIter parent, File file, boolean addImage) {
		TreeIter result = _treeStore.appendRow(parent);
		_treeView.addEventHandler("test-expand-row", "testExpandRow", this,
result);
		return result;
	}
	
	public boolean testExpandRow(Handle widget, Handle data, Object obj) {
		System.out.println("test-expand-row");
		return false;
	}
	
	public void treeViewEvent(TreeViewEvent event) {
		
		System.out.println("Expanded : " + event.isExpand());
		TreeIter current = event.getTreeIter();
	}
}


On Thu, 2005-03-31 at 09:56 -0300, Joao Victor wrote:

> Try using addListener; take a look at the javadoc for TreeViewListener and TreeViewEvent. Here's a
> quick example (i didn't compile it, so forgive me for silly errors):
> 
> First, if you have a TreeView you'll need an array of DataColumns defining the columns, and a
> model object. For the example, it'll be this:
> 
> ------------------------------------------------------
> 
> //The columns
> DataColumn cols = {new DataColumnString(), new DataColumnString()};
> 
> //the model object
> TreeStore model = new TreeStore(cols);
> 
> Now continuing with that code...
> 
> _treeView.addListener(this);
> 
> //Callback
> public void treeViewEvent(TreeViewEvent e) {
> 
>    if (e.isExpand()) {
> 
>       //it's an expand event...
>       //let's get the value of the 1st column
> 
>       String value = model.getValue (e.getTreeIter(), (DataColumnString) cols[1]);
>       System.out.println("value: " + value);
>    }
> }
> 
> ------------------------------------------------------
> 
> 
> Cheers,
> J.V.
> 
> 
> 
> --- Manuel Ledesma <man...@co...> wrote:
> > I finally got the callback working, But now If I try to use the handlers
> > the program is quitting. I read that the GObject.getGObjectFromHandle is
> > for internal use but How can I get the row that just expanded.
> > 
> > example.
> > 
> > // Callback definition ...
> > _treeView.addEventHandler("test-expand-row", "testExpandRow", this,
> > result);
> > 
> > 
> > // Callback function
> > public boolean testExpandRow(Handle widget, Handle data, Object obj) {
> >     GObject test = GObject.getGObjectFromHandle(widget);
> > 
> >     return true;
> > }
> > 
> > 
> > On Wed, 2005-03-30 at 23:07 -0500, Manuel Ledesma wrote:
> > 
> > > I'm trying to catch the "test-expand-row" signal. I cannot find an
> > > example for Java.
> > > 
> > > Can someone illustrate me ? 
> > 
> 
> __________________________________________________
> Converse com seus amigos em tempo real com o Yahoo! Messenger 
> http://br.download.yahoo.com/messenger/ 
> 
> 
> -------------------------------------------------------
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> A global provider of Threat Management Solutions.
> Download our HomeAdmin security software for free today!
> http://www.demarc.com/info/Sentarus/hamr30
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> jav...@li...
> https://lists.sourceforge.net/lists/listinfo/java-gnome-developer

[Java-gnome-developer] Re: Tree view Expand row signal

From: Laurent M. <la...@ao...> - 2005-04-01 00:52:23

>>>>> "Jeff" == Jeff Morgan <ku...@gm...> writes:

  Jeff> On Thu, 31 Mar 2005 19:07:03 -0500, Manuel Ledesma
  Jeff> <man...@co...> wrote:
  >> I start looking at the source and here is the list of signals map
  >> to TreeViewListener, ROW_COLLAPSED is defined and I believe it
  >> was intended to be ROW_EXPANDED. This is a easy bug to
  >> fix. Meanwhiel I will download the source and fixed myself but
  >> I'm still interesting of understanding how signals works in
  >> java-gnome.
  >> 
  >> evtMap.initialize(this, TreeViewEvent.Type.COLUMNS_CHANGED);
  >> evtMap.initialize(this,
  >> TreeViewEvent.Type.EXPAND_COLLAPSE_CURSOR_ROW);
  >> evtMap.initialize(this, TreeViewEvent.Type.ROW_ACTIVATED);
  >> evtMap.initialize(this, TreeViewEvent.Type.ROW_COLLAPSED);
  >> evtMap.initialize(this, TreeViewEvent.Type.ROW_COLLAPSED);
  >> evtMap.initialize(this, TreeViewEvent.Type.SELECT_ALL);
  >> evtMap.initialize(this, TreeViewEvent.Type.SELECT_CURSOR_PARENT);
  >> evtMap.initialize(this, TreeViewEvent.Type.SELECT_CURSOR_ROW);
  >> evtMap.initialize(this,
  >> TreeViewEvent.Type.START_INTERACTIVE_SEARCH);
  >> evtMap.initialize(this, TreeViewEvent.Type.TOGGLE_CURSOR_ROW);
  >> evtMap.initialize(this, TreeViewEvent.Type.UNSELECT_ALL);

  Jeff> Manuel,

  Jeff> Thanks.  You are correct - this should be ROW_EXPANDED.  Are
  Jeff> you going to be able to attend java-gnome-con this Saturday in
  Jeff> person or on irc?  If so I will be giving an overview of the
  Jeff> java-gnome architecture including the event handling.  In the
  Jeff> mean while I will fix this issue.

Wasn't it fxid already ?
http://bugzilla.gnome.org/show_bug.cgi?id=156712

Looks like there was a regression between 1.33.2.1 and 1.33.2.2...

-- 
Laurent Martelli
la...@ao...                                Java Aspect Components
http://www.aopsys.com/                          http://jac.objectweb.org

Re: [Java-gnome-developer] Re: Tree view Expand row signal

From: Manuel L. <man...@co...> - 2005-04-01 00:07:14

I start looking at the source and here is the list of signals map to
TreeViewListener, ROW_COLLAPSED is defined and I believe it was intended
to be ROW_EXPANDED. This is a easy bug to fix. Meanwhiel I will download
the source and fixed myself but I'm still interesting of understanding
how signals works in java-gnome.


evtMap.initialize(this, TreeViewEvent.Type.COLUMNS_CHANGED);
evtMap.initialize(this, TreeViewEvent.Type.EXPAND_COLLAPSE_CURSOR_ROW);
evtMap.initialize(this, TreeViewEvent.Type.ROW_ACTIVATED);
evtMap.initialize(this, TreeViewEvent.Type.ROW_COLLAPSED);
evtMap.initialize(this, TreeViewEvent.Type.ROW_COLLAPSED);
evtMap.initialize(this, TreeViewEvent.Type.SELECT_ALL);
evtMap.initialize(this, TreeViewEvent.Type.SELECT_CURSOR_PARENT);
evtMap.initialize(this, TreeViewEvent.Type.SELECT_CURSOR_ROW);
evtMap.initialize(this, TreeViewEvent.Type.START_INTERACTIVE_SEARCH);
evtMap.initialize(this, TreeViewEvent.Type.TOGGLE_CURSOR_ROW);
evtMap.initialize(this, TreeViewEvent.Type.UNSELECT_ALL);

On Thu, 2005-03-31 at 18:29 -0500, Manuel Ledesma wrote:

> I have already tried that and It does not work. This is why? I'm
> trying to use the signal. Let me paste my class complete ...
> 
> here is the output of this class:
> -- row expanded --
> test-expand-row
> -- row collapsed --
> Expanded : false
> Expanded : false
> 
> The row is expanded but the class does not receive any event, only
> when row is collapsed and somehow get called twice. This was my first
> approach before trying the signals. Probably there's a bug and event
> should happen when row is expanded.
> 
> 
> public class DirectoryTree implements TreeViewListener {
> /**
> * Default constructor
> */
> public DirectoryTree(TreeView treeView) {
>                 ... somethig begfore
> _treeView.addListener(this);
> }
> 
> public TreeIter addNode(TreeIter parent, File file, boolean addImage)
> {
> TreeIter result = _treeStore.appendRow(parent);
> _treeView.addEventHandler("test-expand-row", "testExpandRow", this,
> result);
> return result;
> }
> 
> public boolean testExpandRow(Handle widget, Handle data, Object obj) {
> System.out.println("test-expand-row");
> return false;
> }
> 
> public void treeViewEvent(TreeViewEvent event) {
> 
> System.out.println("Expanded : " + event.isExpand());
> TreeIter current = event.getTreeIter();
> }
> }
> 
> 
> On Thu, 2005-03-31 at 09:56 -0300, Joao Victor wrote: 
> 
> > Try using addListener; take a look at the javadoc for TreeViewListener and TreeViewEvent. Here's a
> > quick example (i didn't compile it, so forgive me for silly errors):
> > 
> > First, if you have a TreeView you'll need an array of DataColumns defining the columns, and a
> > model object. For the example, it'll be this:
> > 
> > ------------------------------------------------------
> > 
> > //The columns
> > DataColumn cols = {new DataColumnString(), new DataColumnString()};
> > 
> > //the model object
> > TreeStore model = new TreeStore(cols);
> > 
> > Now continuing with that code...
> > 
> > _treeView.addListener(this);
> > 
> > //Callback
> > public void treeViewEvent(TreeViewEvent e) {
> > 
> >    if (e.isExpand()) {
> > 
> >       //it's an expand event...
> >       //let's get the value of the 1st column
> > 
> >       String value = model.getValue (e.getTreeIter(), (DataColumnString) cols[1]);
> >       System.out.println("value: " + value);
> >    }
> > }
> > 
> > ------------------------------------------------------
> > 
> > 
> > Cheers,
> > J.V.
> > 
> > 
> > 
> > --- Manuel Ledesma <man...@co...> wrote:
> > > I finally got the callback working, But now If I try to use the handlers
> > > the program is quitting. I read that the GObject.getGObjectFromHandle is
> > > for internal use but How can I get the row that just expanded.
> > > 
> > > example.
> > > 
> > > // Callback definition ...
> > > _treeView.addEventHandler("test-expand-row", "testExpandRow", this,
> > > result);
> > > 
> > > 
> > > // Callback function
> > > public boolean testExpandRow(Handle widget, Handle data, Object obj) {
> > >     GObject test = GObject.getGObjectFromHandle(widget);
> > > 
> > >     return true;
> > > }
> > > 
> > > 
> > > On Wed, 2005-03-30 at 23:07 -0500, Manuel Ledesma wrote:
> > > 
> > > > I'm trying to catch the "test-expand-row" signal. I cannot find an
> > > > example for Java.
> > > > 
> > > > Can someone illustrate me ? 
> > > 
> > 
> > __________________________________________________
> > Converse com seus amigos em tempo real com o Yahoo! Messenger 
> > http://br.download.yahoo.com/messenger/ 
> > 
> > 
> > -------------------------------------------------------
> > This SF.net email is sponsored by Demarc:
> > A global provider of Threat Management Solutions.
> > Download our HomeAdmin security software for free today!
> > http://www.demarc.com/info/Sentarus/hamr30
> > _______________________________________________
> > java-gnome-developer mailing list
> > jav...@li...
> > https://lists.sourceforge.net/lists/listinfo/java-gnome-developer

Re: [Java-gnome-developer] Re: Tree view Expand row signal

From: Jeff M. <ku...@gm...> - 2005-04-01 00:17:50

On Thu, 31 Mar 2005 19:07:03 -0500, Manuel Ledesma
<man...@co...> wrote:
>  I start looking at the source and here is the list of signals map to
> TreeViewListener, ROW_COLLAPSED is defined and I believe it was intended to
> be ROW_EXPANDED. This is a easy bug to fix. Meanwhiel I will download the
> source and fixed myself but I'm still interesting of understanding how
> signals works in java-gnome.
>  
>  evtMap.initialize(this, TreeViewEvent.Type.COLUMNS_CHANGED);
> evtMap.initialize(this, TreeViewEvent.Type.EXPAND_COLLAPSE_CURSOR_ROW);
> evtMap.initialize(this, TreeViewEvent.Type.ROW_ACTIVATED);
> evtMap.initialize(this, TreeViewEvent.Type.ROW_COLLAPSED);
> evtMap.initialize(this, TreeViewEvent.Type.ROW_COLLAPSED);
> evtMap.initialize(this, TreeViewEvent.Type.SELECT_ALL);
> evtMap.initialize(this, TreeViewEvent.Type.SELECT_CURSOR_PARENT);
> evtMap.initialize(this, TreeViewEvent.Type.SELECT_CURSOR_ROW);
> evtMap.initialize(this, TreeViewEvent.Type.START_INTERACTIVE_SEARCH);
> evtMap.initialize(this, TreeViewEvent.Type.TOGGLE_CURSOR_ROW);
> evtMap.initialize(this, TreeViewEvent.Type.UNSELECT_ALL); 

Manuel,

Thanks.  You are correct - this should be ROW_EXPANDED.   Are you
going to be able to attend java-gnome-con this Saturday in person
or on irc?  If so I will be giving an overview of the java-gnome architecture
including the event handling.  In the mean while I will fix this issue.


-- 
Jeffrey Morgan

"The highest reward for a man's toil is not
what he gets for it, but what he becomes by it"
    - Jon Ruskin

[Java-gnome-developer] Re: Tree view Expand row signal

From: Laurent M. <la...@ao...> - 2005-04-01 01:02:14

>>>>> "Jeff" == Jeff Morgan <ku...@gm...> writes:

  Jeff> On Thu, 31 Mar 2005 19:07:03 -0500, Manuel Ledesma
  Jeff> <man...@co...> wrote:
  >> I start looking at the source and here is the list of signals map
  >> to TreeViewListener, ROW_COLLAPSED is defined and I believe it
  >> was intended to be ROW_EXPANDED. This is a easy bug to
  >> fix. Meanwhiel I will download the source and fixed myself but
  >> I'm still interesting of understanding how signals works in
  >> java-gnome.
  >> 
  >> evtMap.initialize(this, TreeViewEvent.Type.COLUMNS_CHANGED);
  >> evtMap.initialize(this,
  >> TreeViewEvent.Type.EXPAND_COLLAPSE_CURSOR_ROW);
  >> evtMap.initialize(this, TreeViewEvent.Type.ROW_ACTIVATED);
  >> evtMap.initialize(this, TreeViewEvent.Type.ROW_COLLAPSED);
  >> evtMap.initialize(this, TreeViewEvent.Type.ROW_COLLAPSED);
  >> evtMap.initialize(this, TreeViewEvent.Type.SELECT_ALL);
  >> evtMap.initialize(this, TreeViewEvent.Type.SELECT_CURSOR_PARENT);
  >> evtMap.initialize(this, TreeViewEvent.Type.SELECT_CURSOR_ROW);
  >> evtMap.initialize(this,
  >> TreeViewEvent.Type.START_INTERACTIVE_SEARCH);
  >> evtMap.initialize(this, TreeViewEvent.Type.TOGGLE_CURSOR_ROW);
  >> evtMap.initialize(this, TreeViewEvent.Type.UNSELECT_ALL);

  Jeff> Manuel,

  Jeff> Thanks.  You are correct - this should be ROW_EXPANDED.  Are
  Jeff> you going to be able to attend java-gnome-con this Saturday in
  Jeff> person or on irc?  If so I will be giving an overview of the
  Jeff> java-gnome architecture including the event handling.  In the
  Jeff> mean while I will fix this issue.

Wasn't it fxid already ?
http://bugzilla.gnome.org/show_bug.cgi?id=156712

Looks like there was a regression between 1.33.2.1 and 1.33.2.2...

-- 
Laurent Martelli
la...@ao...                                Java Aspect Components
http://www.aopsys.com/                          http://jac.objectweb.org

Re: [Java-gnome-developer] Re: Tree view Expand row signal

From: Jeff M. <ku...@gm...> - 2005-04-01 01:16:08

On Fri, 01 Apr 2005 02:51:27 +0200, Laurent Martelli <la...@ao...> wrote:
> Wasn't it fxid already ?
> http://bugzilla.gnome.org/show_bug.cgi?id=156712
> 
> Looks like there was a regression between 1.33.2.1 and 1.33.2.2...

Wow.  I think you are right.  This was around the time we merged
in the 64-bit support.  This must have gotten lost during the
merge.


> 
> --
> Laurent Martelli
> la...@ao...                                Java Aspect Components
> http://www.aopsys.com/                          http://jac.objectweb.org
> 
> 
> -------------------------------------------------------
> This SF.net email is sponsored by Demarc:
> A global provider of Threat Management Solutions.
> Download our HomeAdmin security software for free today!
> http://www.demarc.com/info/Sentarus/hamr30
> _______________________________________________
> java-gnome-developer mailing list
> jav...@li...
> https://lists.sourceforge.net/lists/listinfo/java-gnome-developer
> 


-- 
Jeffrey Morgan

"The highest reward for a man's toil is not
what he gets for it, but what he becomes by it"
    - Jon Ruskin