[SOLVED] User Widget

[a.koryakin]

I creating my own widget and want to inherit it from base widget class like this :
 

class ProgressBarWidget : Widget

{

     ProgressBarWidget(Gui gui, string name): Widget(gui, name) { ....something....}

};

calling in other script

....

ProgressBarWidget pbar = new ProgressBarWidget();

gui.addChild(pbar.extern, GUI_ALIGN_CENTER);

....


and i have the following message 


Is there some sintaxis error?

 

[silent]

Hi,

 

Could you please provide a full source code? This would help a lot. Also, you can try to run engine with debug binaries to get more detailed errors in console.

 

Thanks!

[a.koryakin]

here i have the example code

Empty.rar

 

[silent]

Hi,

 

There is no easy way to inherit from base class. Could you please try to inherit from Unigine::Widgets. For example, using this code:

#include <core/systems/widgets/widget.h>

using Unigine::Widgets;

class ProgressBarWidget : Widget
{
 int width = 150;
 
 ProgressBarWidget(int w) {
  __Widget__(w);
}
 
 ~ProgressBarWidget() {
  __Widget__();
 }
};

Thanks!

[a.koryakin]

hi, 

i did what you said byt it still not working.

Empty.rar

[unclebob]

Actually, you have a lot of options here:

 

1) Inherit from WidgetExternBase. That way you'll be able to create your custom widget from C++ side as well as from the script.

2) Don't use inheritance at all and use WidgetCanvas instead to draw custom graphics and event handling. So your custom widget will be a wrapper class over WidgetCanvas.

3) Inherit from Unigine::Widgets::Widget class in the script as it has support for both multi- and single window modes. That's the way silent had suggested you.

 

By the way, I've modified your code so it's working now. Please find it in the attachments.

 

Have a good weekend!

Empty.zip

[a.koryakin]

Thank you very much!

it works great, I'll use 3'rd way.

I need to drow some custom texture inside widget with local (relatively to container coordinates), i think WidgetCanvas cant do this.

WidgetExternBase is ok but all GUI part of my application is already in scripts now, its bad to separate my code, and put widgets to c++ code.

[a.koryakin]

I still have trouble adding my custom ProgressBarWidget widget to ObjectGui. 
 

ObjectGui object_gui = add_editor(new ObjectGui(30.0f, 30.0f));

object_gui.setPosition(dvec3(0, 0, 10 + 15));

object_gui.setBillboard(1);

object_gui.setBackground(0);

object_gui.setMaterial("gui_base","*");

object_gui.setProperty("surface_base","*");

object_gui.setScreenSize(300, 300);

object_gui.setControlDistance(100000.0f);

Gui gui = object_gui.getGui();

 

 

ProgressBarWidget pbw = new ProgressBarWidget(10, gui);

pbw.stop();

 

WidgetVBox allContainer = new WidgetVBox(gui);

allContainer.addChild(pbw);

gui.addChild(allContainer, GUI_ALIGN_CENTER);

Empty.rar

I got this message



there is no trouble when i add widget:
addChild(pbw,ALIGN_CENTER);

 

[unclebob]

That's because Unigine::Widgets::Widget script class is not inherited from C++ Widget class, it's a wrapper. That said, it won't work with gui.addChild method that way yet there're few ways to solve this.

 

You can either access its inner field

ProgressBarWidget pbw = new ProgressBarWidget(10,gui);

gui.addChild(pbw.widget, GUI_ALIGN_EXPAND);

or just use addChild method.

[a.koryakin]

method gui.addChild(pbw.widget, GUI_ALIGN_EXPAND); works well

This is working test user widget 
Empty.rar

Problem solved, thank you.