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some drawing problems in X11 [message #6998]

Wed, 06 December 2006 23:16

evert
Messages: 6
Registered: December 2006
Location: The Netherlands

Promising Member

Hi,

I have created a small ataxx (virus) game in U++ as part of my programming course at the university. The code is ugly, I'm a beginner, the comments are in Dutch, but it works, at least in Win32. In X11 I have to disable a few things like auto-resizing the window.

Some code snippets that causes problems:

w.DrawEllipse(startx, starty, virusgrootte/2, virusgrootte/2, Yellow());

(it seems like DrawEllipse does not like the divisions - Win32 does not complain though)

centrumpunt = GetWorkArea().CenterPoint();
centreerx = centrumpunt.x-(int)(.5*raambreedte);
centreery = centrumpunt.y-(int)(.5*raamhoogte);
SetRect(centreerx, centreery, raambreedte, raamhoogte);

(something goes wrong with GetWorkArea().CenterPoint(); or with SetRect, not sure which is causing the problem)

I'm working with upp_0.612.1-1_i386.deb

(in windows, i work with the 605 release, works splendid)

Just to let you know there errors ocurred. I've to show my work tomorrow so I will not care much myself about these problems - I just show the win32 version and my teacher will be happy.

Thanks for U++ !!

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Re: some drawing problems in X11 [message #6999 is a reply to message #6998]

Wed, 06 December 2006 23:35

mirek
Messages: 14258
Registered: November 2005

Ultimate Member

Do you think you could post the whole package as testcase?

Mirek

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Re: some drawing problems in X11 [message #7011 is a reply to message #6999]

Thu, 07 December 2006 13:08

evert
Messages: 6
Registered: December 2006
Location: The Netherlands

Promising Member

Sure. Unzip to MyApps and it's ready to compile.

But the code quality is below standards, and comments are in Dutch...

Attachment: ataxx.zip
(Size: 9.71KB, Downloaded 1996 times)

[Updated on: Thu, 07 December 2006 13:18]

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Re: some drawing problems in X11 [message #7012 is a reply to message #7011]

Thu, 07 December 2006 14:59

mirek
Messages: 14258
Registered: November 2005

Ultimate Member

Ooops. By mistake, you placed the .lay file into other directory ("Open any file.."), so it did not get zipped.

Please send it:)

Mirek

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Re: some drawing problems in X11 [message #7013 is a reply to message #6998]

Thu, 07 December 2006 16:44

evert
Messages: 6
Registered: December 2006
Location: The Netherlands

Promising Member

bordselectie.lay is in the zip file

there is no other .lay file, the topwindows is made without a layout file with void MyAppWindow::Paint(Draw& w)

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Re: some drawing problems in X11 [message #7028 is a reply to message #7011]

Fri, 08 December 2006 10:38

andrei-catalin
Messages: 62
Registered: May 2006
Location: Romania

Member

Hi!

After some modifications I succeded to run your app.

The main problem is placing SetRect method in Paint routine.

A hint is to separe this method as a individual method.

Andrei

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Re: some drawing problems in X11 [message #7029 is a reply to message #7028]

Fri, 08 December 2006 10:50

evert
Messages: 6
Registered: December 2006
Location: The Netherlands

Promising Member

@ luzr, andrei-catalin:

Thanks a lot. I would never have figured that out. I will try and recompile it in Ubuntu this weekend and let you know about it.

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Re: some drawing problems in X11 [message #7055 is a reply to message #6998]

Sun, 10 December 2006 12:19

evert
Messages: 6
Registered: December 2006
Location: The Netherlands

Promising Member

Have tried it. Compiles OK, and no crash during runtime any more. But resizing is still a problem. How to programatically Resize the app window at runtime? In win32, the SetRect method does a fine job, but in X11, it only works when the window is first initialized. Using a SetRect (oudside of the Paint method) in X11 results in a windows with zero width and height.

I have tried things like GuiFlush(), Restore() and Layout() after the SetRect but the problem persists.

Actually I don't need it anymore (got a nice mark for my little program) but I feel like resizing windows should work in X11 if it works in win32.

Ubuntu 6.10
U++ 612-dev1

Regards, Evert

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Re: some drawing problems in X11 [message #7060 is a reply to message #7055]

Sun, 10 December 2006 20:02

andrei-catalin
Messages: 62
Registered: May 2006
Location: Romania

Member

You could try my version (tested only in win32). Perhaps it will work in X11, too.

Good luck,
Andrei

Attachment: ataxx.zip
(Size: 9.81KB, Downloaded 507 times)

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Re: some drawing problems in X11 [message #7061 is a reply to message #6998]

Sun, 10 December 2006 22:07

evert
Messages: 6
Registered: December 2006
Location: The Netherlands

Promising Member

Your version didn't compile at first (you commented out a few files) but after fixing that, it did compile fine. I should have made a Makefile, probably, and fix the modulatity.

The problem in your version is solved - programatically rezising the window now works Razz

I'm still figuring out how you did it. Is it in this part of the code? Does one need a Backpaint() to resize a window at runtime?

GUI_APP_MAIN {
	MyAppWindow ataxx;
	ataxx.BackPaint();
	ataxx.Run();
}

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Re: some drawing problems in X11 [message #7062 is a reply to message #7061]

Sun, 10 December 2006 22:23

andrei-catalin
Messages: 62
Registered: May 2006
Location: Romania

Member

Major changes are in main.cpp lines 156-170 and 500-514.

BackPaint is only for eliminate flickering.

Andrei

[Updated on: Sun, 10 December 2006 22:25]

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