This bug report was migrated from our old Bugzilla tracker.

These attachments are available in the static archive:

• screenshot (Screen Shot 2018-10-12 at 8.05.06 AM.png, image/png, 2018-10-12 12:06:32 +0000, 36810 bytes)
• sample program (file_4306.txt, text/plain, 2018-10-12 12:07:30 +0000, 312 bytes)

Reported in version: 2.0.9
Reported for operating system, platform: Linux, x86_64

Comments on the original bug report:

On 2018-10-12 12:06:32 +0000, Daniel Bokser wrote:

Created attachment 3366
screenshot

I am running into a bug where i have a fairly large which is longer than 31 lines. After line 31, newlines are replaced with the vertical tab character (shown as VT). I have this issue only on X11. It looks fine on Mac and Windows. I have attached a screenshot and sample program.

On 2018-10-12 12:07:30 +0000, Daniel Bokser wrote:

Created attachment 3367
sample program

On 2018-10-12 12:22:46 +0000, Daniel Bokser wrote:

Apologies, I was assuming that the latest LTS ubuntu had 2.0.8, when in fact it has 2.0.4. Putting this into waiting until I can test on 2.0.8 tonight

On 2018-10-13 02:16:19 +0000, Daniel Bokser wrote:

Confirmed this issue happens in 2.0.8 and the latest repo pull (2.0.9) on Ubuntu 16.04 LTS. Reopening...

On 2018-10-14 18:40:34 +0000, Daniel Bokser wrote:

Found the reason for this. In SDL_x11messagebox.c it looks like the maximum number of lines is 32

#define MAX_TEXT_LINES 32 /* Maximum number of text lines supported */

Increasing this value fixes my problem. I could not find any documented reason for this limit. The SDL_ShowMessageBox page does not document this limitation either.

What is the reason for this limit?

On 2018-10-15 04:47:21 +0000, Ryan C. Gordon wrote:

(In reply to Daniel Bokser from comment # 4)

What is the reason for this limit?

Probably an assumption that it would be more than anyone would need, since it specifies the size of a static array.

To be clear, 32 lines in a messagebox is probably more than one should put in a messagebox, but who am I to dictate absolute limits? This is fixed now, in https://hg.libsdl.org/SDL/rev/cf64a70ad02a

Thanks!

--ryan.

On 2018-10-15 11:57:11 +0000, Daniel Bokser wrote:

Thanks for the fix Ryan! Works perfect for me.

Yea, agreed that 32 lines should be more than enough for a message box, but I am currently using it as a stop-gap to display controls for my emulator until I have a proper UI.