Initialize a listbox to show

adipan · Posted: Thu Jun 02, 2005 6:22 am Post subject: Initialize a listbox to show

Please find below a code snippet:

Reference< XListBox> xPSetFixedText(xFixedTextControl,UNO_QUERY);
xPSetFixedText->addItems (seqStrlistItems , 0);

//Try to set focus to first row of added data
xPSetFixedText->selectItemPos (sal_Int16(0), sal_Bool(true) );
xPSetFixedText->makeVisible (sal_Int16(0));
//Check if I am successful
sal_Int16 selItem = xPSetFixedText->getSelectedItemPos ();
printf ("Selected Item Pos :%d", selItem);

The printf stills show selItem as -1, and the initial listbox comes with a blank row. When I select the listbox, then it shows all the items I have entered after the blank row, and blank row disappears once I choose one the valid items.

It looks like a common problem, I am not using right approach. Also, this is a DropDown list. Any comments?
_________________
Aditya Pandey

SergeM · Posted: Thu Jun 02, 2005 8:02 am Post subject:

My answer is based on supositions because I have not the entire code.
First of all, I have no experience with listbox in C++. The subject is interesting and i hope to explore it in the futur.
I think you make confusions between, the code, the dialog and what you see. I have myself encounter similar problem and only understand it for two days ago.

adipan · Posted: Thu Jun 02, 2005 10:54 pm Post subject:

Thanks for your reply.

I didnt want to make my post long, so didnt include the call for
xDialog->execute()

I am doing execute on dialog (but before that, I need to set all the properties of the widgets that come on the dialog, among them a listbox).

What happens when dialog first appears is that, listbox (with a dropdown)..has visible a blank row...which should not be there...only the items I inserted should be there....

When I click and select an item from the listbox, then it shows me only the items that I entered and blank row disappears once something has been selected.
_________________
Aditya Pandey

SergeM · Posted: Fri Jun 03, 2005 8:16 am Post subject:

OK I have to try C++ listbox programming. Perhaps to morrow.
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SergeM · Posted: Sat Jun 04, 2005 3:49 am Post subject:

I have not programmed Dialog box for a long time and then spend a lot of time to obtain a XListBox service without success.
In :

adipan · Posted: Mon Jun 06, 2005 7:11 am Post subject:

Hi SergeM

Thanks for looking up on this.

I would post a snippet related to how to create a listbox (or a text box) in some time. I am just posting this, so your effort on getting a listbox is not spent.
_________________
Aditya Pandey

adipan · Posted: Mon Jun 06, 2005 8:24 am Post subject:

Please find below code for adding a listbox.

Basically, a dialogModel's own factory is required to create a listbox. Using XPropertySet
property for the listbox could be set, and finally a dialogModel's name container is required to insert the listbox.

void construct_dialog (Reference< XMultiServiceFactory > xServiceManager, const Reference< XFrame >& xFrame)
{
//Check input parameter
if( xServiceManager != NULL && xServiceManager.is() ){
printf( "Connected sucessfully to the office\n" );
}
else return;

//Setup dialog model
Reference< XInterface > xDialogModel =
xServiceManager->createInstance(
OUString::createFromAscii("com.sun.star.awt.UnoControlDialogModel"));
if (xdialogModel.is()) printf("OK XDialogModel\n");
else {
printf("Error ... XDialogModel\n");
return ;
}

// create the child control models of the dialog and set their properties
Reference< XNameContainer > xNameCont(xDialogModel,UNO_QUERY);
if (xNameCont.is()) printf("OK XNameContainer\n");
else
{ printf("Error ... XNameContainer\n");
return ;
}

//Note: xDialogMSFactory used for dialog instead of xServiceManager [Application Main window]
Reference< XMultiServiceFactory > xDialogMSFactory( xDialogModel,UNO_QUERY);

Any val;
Reference< XInterface > xControlModel = xDialogMSFactory->createInstance(OUString::createFromAscii("com.sun.star.awt.UnoControlListBoxModel"));
if (xControlModel.is()) printf("OK Listbox\n", );
else
{ printf("Error ... %s\n");
return ;
}

val <<= xControlModel;
xNameCont->insertByName(OUString::createFromAscii("listBox1") ,val);

}
_________________
Aditya Pandey

SergeM · Posted: Mon Jun 06, 2005 9:02 am Post subject:

OK but don't see how do you obtain XListBox interface.
_________________
Linux & Windows OOo3.0
UNO & C++ : WIKI
http://wiki.services.openoffice.org/wiki/Using_Cpp_with_the_OOo_SDK
In French
http://wiki.services.openoffice.org/wiki/Documentation/FR/Cpp_Guide

adipan · Posted: Mon Jun 06, 2005 9:21 am Post subject:

Oops...
Please see this in continuation of my earlier code....Code lines are increasing too much. Sorry about that.

// create the dialog control and set the model
Reference< XInterface >dialog = xServiceManager->createInstance(
OUString::createFromAscii("com.sun.star.awt.UnoControlDialog"));
if (dialog.is()) printf("OK dialog\n"); else printf("Error ... dialog\n");
Reference< XControl > xControl(dialog,UNO_QUERY);
if (xControl.is()) printf("OK XControl\n"); else printf("Error ... XControl\n");
Reference< XControlModel > xControlModel(xDialogModel,UNO_QUERY);
if (xControlModel.is()) printf("OK xControlModel\n"); else printf("Error ... xControlModel\n");
xControl->setModel(xControlModel);

Reference< XControlContainer > xControlCont(dialog,UNO_QUERY);
xMyControlCont = xControlCont;
if (xControlCont.is())
{
printf("OK xControlContainer\n");
Reference< XInterface > objectListBox=xControlCont->getControl(OUString::createFromAscii("listBox1"));
if (objectListBox.is()) printf("OK ListBox XInterface\n");
else
{ printf("Error ... ListBox XInterface\n");
return ;
}
Reference< XControl > xListControl(objectListBox,UNO_QUERY);
if (xListControl.is())
printf ("OK...FixedTextcontrol");
else
return;

Reference< XListBox> xPSetListBox(xListControl,UNO_QUERY);
if (xPSetListBox.is())
printf ("SUCCESS in List Box\n");
else return;

xPSetListBox->removeItems(0, xPSetFixedText->getItemCount());
xPSetListBox->addItems (seqStrlistItems , 0);
xPSetListBox->selectItemPos (sal_Int16(0), sal_Bool(true) );
xPSetListBox->makeVisible (sal_Int16(0));
sal_Int16 selItem = xPSetListBox->getSelectedItemPos ();
printf ("Selected Item Pos :%d", selItem);
}
else printf("Error ... xControlContainer\n");
_________________
Aditya Pandey

SergeM · Posted: Tue Jun 07, 2005 9:49 am Post subject:

As I explained in the first answer, this code cannot work (in my opinion), because when you try to obtain a result of something selected in the listbox this listbox is not on the screen ! This listbox comes in the screen only when you call Dialog.execute() and when you launch this dialog.execute() you cannot execute an otherC++ instruction. Then I see only two ways to achieve your goal :
- using thread
- using callback : or event listener.
I have encounter exacly the same problem but with a "com.sun.star.awt.UnoControlEditModel" : I wanted to use this control to write something in it and I prepare this control as you do it and then want to put the text in it but never obtain the corresponding interface ! After few days stopping around this problem I come back with the idea that I do the things in the wrong way !
I decided to attach the writing of the text to an event listener and it works because now when I ask the XTextComponent interface the dialog box is running.

Conclusion : ********** Important ************
when this code is executed

SergeM · Posted: Tue Jun 07, 2005 9:58 am Post subject:

If you don't understand exacly what I mean you can ask in this thread. But be patient, I will be not at home during three days.
I will publish what I have done with dialog and Reflection in the code snippet but I have to clean a little the code and add somethings.
Hope that helps.
_________________
Linux & Windows OOo3.0
UNO & C++ : WIKI
http://wiki.services.openoffice.org/wiki/Using_Cpp_with_the_OOo_SDK
In French
http://wiki.services.openoffice.org/wiki/Documentation/FR/Cpp_Guide

Danad · Posted: Tue Jun 07, 2005 7:12 pm Post subject:

With OOo Basic selectItemPos doesn't work for run-time dialogs. But it works for IDE dialogs (before execute call).

adipan · Posted: Wed Jun 08, 2005 2:23 am Post subject:

Danad:
I tried to see if there is any difference between your VB code and mine in C++...and I cant find any Sad

. What is the difference between IDE dialogs and run-time dialogs?

SergeM:
I can find XListBox interface...as I can easily addItems on the listbox in my code.
But when dialog box appears ..there is an empty row..and when I click and select one of the added items...the empty row in listbox at top disappears.

Thats why I did same as what Danad has done in this part:

' <<<=== WORKS WITH IDE DIALOG
xListBox.selectItemPos(0, True)
xListBox.makeVisible(0)
'print xListBox.getSelectedItemPos()
' ======================== >>>

getSelectedItemPos() comes to be -1 for me. And, I dont know if selectedItemPos and makeVisible work. But, xListBox smart pointer is not null for me.
_________________
Aditya Pandey

Danad · Posted: Wed Jun 08, 2005 12:30 pm Post subject:

SergeM · Posted: Fri Jun 10, 2005 11:13 am Post subject:

Frankly speaking I have not tried your code. I will see to morrow.
_________________
Linux & Windows OOo3.0
UNO & C++ : WIKI
http://wiki.services.openoffice.org/wiki/Using_Cpp_with_the_OOo_SDK
In French
http://wiki.services.openoffice.org/wiki/Documentation/FR/Cpp_Guide