WidgetEditText::setText after using a dialog file

[RVargas]

I have found a really weird problem: when I use a dialog widget to select a file and after that I try to call setText() for a widget (tested with WidgetEditText and WidgetButton) I get an error:

 

ExternClass::run_function(): object is NULL
Stack dump:
0x0000: string: "Switch"

 

"Switch" is the string I passed to setText(). Any idea about whats happening here?

[ulf.schroeter]

ExternClass::run_function(): object is NULL

 

I would guess that some object variable in your code is not initialized. You should post at least your function code including an indication where the exception is raised..

[RVargas]

I would guess that some object variable in your code is not initialized. You should post at least your function code including an indication where the exception is raised..

 

Here is a simple code:

DialogFile::init();
DialogFile::show("Choose dialog file", fileName,"*.xml");
btNew.setText("Switch");

 

The file selection dialog works fine, and the button exists, fo course, Im just changing its text.

[ulf.schroeter]

How is btNew object variable initialized ? Fisrt of all include following test code to verify btNew initialization.

 

DialogFile::init();
DialogFile::show("Choose dialog file", fileName,"*.xml");

if( btNew != 0 )
{
   btNew.setText("Switch");
}
else
{
   log.error("btNew is null");
}

[RVargas]

I used the widget demo as base:

 

class Window {

Gui gui;				// gui
UserInterface ui;

WidgetButton btNew;	    // New dialog

       ***

Window() {

gui = engine.getGui();
btNew = new WidgetButton(gui,"New");
       gui.addChild(btNew,GUI_ALIGN_OVERLAP);
       ***
}

 

Also added your code and made a test, it reports that btNew is null.

[ulf.schroeter]

Also added your code and made a test, it reports that btNew is null.

 

check if Window() constructor gets called by adding some log messages. In the sample this is done via

 

/*
*/
void create_scene() {

Window window = new Window();
window = window;

return "Toggle button";
}

[RVargas]

Everything works fine, as long as I dont display a DialogFile before. I remove it and the widgets are accessed normally (as I said, I tested with several widgets, which are already created and are perfectly visible).

[ulf.schroeter]

Everything works fine, as long as I dont display a DialogFile before. I remove it and the widgets are accessed normally (as I said, I tested with several widgets, which are already created and are perfectly visible).

 

Post a small test-case .cpp/.world for problem reproduction

[RVargas]

Ok, here it is. I have included all the files, just in case.

error.zip

[RVargas]

A little detail:

 

npcLine.setText("Loading"); <-- This works
	DialogFile::init();
	DialogFile::show("Choose dialog file", fileName,"*.xml");
	npcLine.setText("testtt"); <-- This no works

 

Seems that DialogFile is invalidating all my previously created widgets. Also tried calling dialogFile::shutdown after show(), but didnt solved the problem.

[binstream]

Our QA will check the problem on Monday.

[serega]

Thanks for test-case. Problem assigned to devs.