Opened 15 years ago
Closed 15 years ago
#127 closed defect (fixed)
QDesigner fails to load large/complex ui file made on MAC/Windows
| Reported by: | jvw | Owned by: | |
|---|---|---|---|
| Priority: | major | Milestone: | Qt 4.6.2 |
| Component: | Tools | Version: | 4.5.1 GA |
| Severity: | low | Keywords: | Designer |
| Cc: |
Description
I just installed the Qt4 4.51 WPI archives to check out QDesigner with some existing Qt projects I have (created on Windows, using Qt 4.60).
Sofar I did not install the GCC compiler yet, just playing with the designer.
The very first project I tried, with one dialog, failed to load that dialog with an error message stating the file was not a valid ui file, with additional info saying:
++++++
An error has occurred while reading the ui file at line 1, column 2: Expected '?', '!', or '[a-zA-Z]', but got '/'.
++++++
Of course those lines look fine in an editor, and the files works fine on Windows as well as the MAC. A small dummy dialog created on OS/2 does read back properly.
Testing the larger dialog by removing several widgets from the ui file, lead me to believe there is some size constraint (or overflow bug). After removing checkboxes one-by-one, the file became 'acceptable' when 4 of the 8 checkboxes had been removed, and the file size went down from almost 9884 bytes to 8376.
I will try to attach an OK and BAD version of the ui file.
TIA for any insight on this problem ...
Jan van Wijk
Attachments (2)
Change History (5)
by , 15 years ago
| Attachment: | ardlgbad.ui added |
|---|
by , 15 years ago
| Attachment: | ardlg-ok.ui added |
|---|
Designer ui file, stripped down from BAD, loads fine
follow-up: 2 comment:1 by , 15 years ago
Looks like QIODevice::seek(0) doesn't actually move the file pointer to the beginning of the file...
To be more exact, regular files were treated as sequential data streams and therefore seeking didn't work properly on QFile objects (internal QIODevice buffer got out of sync and would return earlier/later parts of the file when reading from files beyond the buffer size). Fixed in r551. The hot-fix drop-in replacement DLL is available at ftp://ftp.netlabs.org/pub/qt4/4.5.1-ga/QtCore4_r551.zip.
Please test on your side.
comment:2 by , 15 years ago
Replying to dmik:
Looks like QIODevice::seek(0) doesn't actually move the file pointer to the beginning of the file...
Fixed in r551. The hot-fix drop-in replacement DLL is available at ftp://ftp.netlabs.org/pub/qt4/4.5.1-ga/QtCore4_r551.zip.
Please test on your side.
OK, thanks for this quick fix.
It seems to work just fine, I can now open de ui files that failed before!
Regards, JvW
Designer ui file, fails to load (maybe too large)