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[Solved] Re: Is the Layout Designer outdated? [message #57060 is a reply to message #57059]

Wed, 19 May 2021 00:25

Oblivion
Messages: 1209
Registered: August 2007

Senior Contributor

Hello MeerMusik,

Quote:

Also what confused me for a while: In the C++ Header File I have to write "LabelBase Label1" but in the Layout File it is just Upp::Label - guess that is Part of the Charme of UPP.

Layout file is just a simple C++ file, there is nothing magical, no special processing, really. Only a couple of C++ macros (to simplify templating, and naming).

This:


struct MyWindow : TopWindow {
 Label label1;
 MyWindow()
 {
	Title("Window title").Sizeable().Zoomable().SetRect(0,0,640, 400);
	Add(label1. SetLabel(t_("I am a label")).SetInk(Color(226, 42, 0)).LeftPosZ(13, 243).TopPosZ(20, 144));
 }
};

İs not different than this:

Layout:

LAYOUT(MyWindowLayout, 640, 400)
	ITEM(Upp::Label, Label1, SetLabel(t_("I am a label")).SetInk(Color(226, 42, 0)).LeftPosZ(13, 243).TopPosZ(20, 144))
END_LAYOUT

Cpp:

#define LAYOUTFILE <MyWindow/MyWindow.lay>
#include <CtrlCore/lay.h>

class MyWindow : public WithMyWindowLayout<TopWindow> {
public:
	MyWindow()
	{
		CtrlLayout(*this, "Window title");
	}
};

The layout code does the ctrl instantiating for you. That's all. While the latter may seem complex at first glance, it actually simplifies things a lot, if you build complex GUIs. Not to mention it relies on C++ templating rules so the errors will be catched by the c++ compiler on compile-time.

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

[Updated on: Wed, 19 May 2021 00:51]

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