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Re: Action/logic inside or outside the Windows class?

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On 9/11/2019 9:51 AM, JiiPee wrote:
> On 11/09/2019 17:12, Paavo Helde wrote:
>> No, in your example you just forwarded some GUI related logic to 
>> another class, for no obvious reason. GUI logic should remain in the 
>> GUI classes. In general, the program logic classes should not contain 
>> word "mouse" or "click".
>>
>> If you click a mouse "out of the border", this might affect the 
>> program logic or not. Maybe you want to call PauseCalculation() on 
>> your app, for example. If there really is no other effect than 
>> changing a message string, then the mouse click function should call 
>> logic.SetStatusMessage("...") or something like that.
> 
> 
> ok, so something like this:
> 
> void MyWindow::MouseClick(Point mousePosition)
> {
>      if(mousePosition.x > 150)
>      {
>          logic.SetStatusMessage("...");
>      }
> }
> 
> 
> So you would leave the mouse condition check there ( if(mousePosition.x 
>  > 150)   ), but the action related to it would go to logic class?
> 

Yes.  Mouse position is related to the GUI.

There are a couple of paradigms related to this sort of thing:
* Model/View/Controller (MVC), where you classes representing the
   data model, the view (GUI), and the controller (program logic)
* Document/View (used by MFC), where you have a view class (the GUI,
   or in your case MyWindow), and the "Document" class, which contains
   both the data model and the controlling logic.

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Action/logic inside or outside the Windows class? JiiPee <no@notvalid.com> - 2019-09-11 11:41 +0100
  Re: Action/logic inside or outside the Windows class? Öö Tiib <ootiib@hot.ee> - 2019-09-11 06:45 -0700
    Re: Action/logic inside or outside the Windows class? JiiPee <no@notvalid.com> - 2019-09-11 15:28 +0100
      Re: Action/logic inside or outside the Windows class? Öö Tiib <ootiib@hot.ee> - 2019-09-12 01:05 -0700
    Re: Action/logic inside or outside the Windows class? JiiPee <no@notvalid.com> - 2019-09-11 15:45 +0100
    Re: Action/logic inside or outside the Windows class? JiiPee <no@notvalid.com> - 2019-09-11 15:53 +0100
      Re: Action/logic inside or outside the Windows class? JiiPee <no@notvalid.com> - 2019-09-11 15:58 +0100
  Re: Action/logic inside or outside the Windows class? Paavo Helde <myfirstname@osa.pri.ee> - 2019-09-11 18:22 +0300
    Re: Action/logic inside or outside the Windows class? JiiPee <no@notvalid.com> - 2019-09-11 16:45 +0100
      Re: Action/logic inside or outside the Windows class? Paavo Helde <myfirstname@osa.pri.ee> - 2019-09-11 19:12 +0300
        Re: Action/logic inside or outside the Windows class? JiiPee <no@notvalid.com> - 2019-09-11 17:51 +0100
          Re: Action/logic inside or outside the Windows class? red floyd <dont.bother@its.invalid> - 2019-09-11 09:56 -0700
            Re: Action/logic inside or outside the Windows class? JiiPee <no@notvalid.com> - 2019-09-11 19:42 +0100
          Re: Action/logic inside or outside the Windows class? Paavo Helde <myfirstname@osa.pri.ee> - 2019-09-11 20:24 +0300
            Re: Action/logic inside or outside the Windows class? JiiPee <no@notvalid.com> - 2019-09-11 19:42 +0100

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