From: Stephen Viles (sviles_abi@iinet.net.au)
Date: Wed Sep 17 2003 - 23:51:24 EDT
17/09/03 8:20:55 AM, Stephen Viles <sviles_abi@iinet.net.au> wrote:
>Hi everyone,
>
>> msevior@physics.unimelb.edu.au Sun Sep 14 2003 - 02:56:13 EDT
>>
>> With my MINGW build of cvs 4 days ago. I don't see this at all. I'm running
>> WinME. Jordi told me about an assert he was getting at around line 508 in
>> the gr_Win32Graphics class. That assert shows that the characters are
>> being placed at their zoomed sizes and not at the positions determined by
>> the charwidths array. The assert can happen and maybe screen drawing bug
>> can happen if you run a version of Windows with BiDi support. Which I guess
>> is Windows 2000 or Win XP.
>
>I am also getting this assert with a MinGW HEAD build on Windows 98SE.
>Will attempt to get info from gdb.
Very strange results from gdb. Appears that GetCharacterPlacementW (wherever it
is) is not called at all. Instead, a plugin destructor makes an appearance:
Breakpoint 3, GR_Win32Graphics::drawChars(unsigned const*, int, int, int, int, i
nt*) (this=<incomplete type>, pChars=0x80f740, iCharOffset=0, iLengthOrig=1,
xoff=211, yoff=10, pCharWidths=0x0) at gr_Win32Graphics.cpp:499
499 placementResult = GetCharacterPlacementW
(m_hdc, (LPCWSTR) currentChars, iLength, 0, &gcpResult, GCP_REORDER);
(gdb) s
0x104218c0 in GetCharacterPlacementW@24 () at ut_spi.cpp:245
245 }
(gdb) s
GR_Win32Graphics::drawChars(unsigned const*, int, int, int, int, int*) (
this=<incomplete type>, pChars=0x80f740, iCharOffset=0, iLengthOrig=1,
xoff=211, yoff=10, pCharWidths=0x0) at gr_Win32Graphics.cpp:502
502 if(placementResult)
(gdb) s
508 UT_ASSERT(UT_SHOULD_NOT_HAPPEN);
(gdb)
(Apologies for wrapping to 80 chars.) Relevant section of ut_spi.cpp is:
238 UT_SPI_v1::~UT_SPI_v1 ()
239 {
240 if (version () != 1) return;
241
242 if (m_field) delete m_field;
243
244 m_plugin_unregister (m_spi.plugin_data, SPI ());
245 }
Or am I misusing gdb or misinterpreting gdb output?
Cheers - Stephen.
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