mugdha kulkarni wrote:
1]It is been observed that editor becomes slow in response if the size of
the file is in Kb.
I have seen the opposite effect. In terms of performance, I am experiencing
that it is significantly faster than when using a RichEdit control in
Windows. Files betwen 0.5-1MB take approx 1 second to load. I have also
tried a 5.37MB file that takes a total of 7 seconds (including GUI
refresh/responsiveness, but you can see the file text being displayed almost
instantly).
2]Word Wrap feature further affects the response of editor.
I am using word-wrap with no significant performance lag.
Is there any way to improve performance of editor in both of the above
cases.?
I built the scintilla library using Micosoft VC7.1 as a static library. I am
calling the Scintilla API using the SendMessage interface (as opposed to
direct access). This is being run on a WinXP SP2 laptop with a 1.3GHz Intel
Celeron M processor and 248MB RAM.
I am using the following code to load the document:
// Detect UTF8/16 BOM and call SetCodePage() accordingly.
ClearAll();
SetUndoCollection( false );
char szBuffer[ 8192 ];
DWORD dwRead = 0;
while( SUCCEEDED( stream -> Read( szBuffer, sizeof( szBuffer ),
&dwRead )) && dwRead > 0 )
{
AddText( szBuffer, int( dwRead ));
}
SetCurrentPos( 0 );
SetUndoCollection( true );
SetSavePoint();
NOTE: This is using IStream objects as I was using the LoadStream to load
the document into a RichEdit control. However, it should be easy to addapt
this to use files (CreateFile, ReadFile, CloseHandle).
NOTE: I am using Scintilla in an MDI envronment with one Scintilla window
per document.
HTH,
- Reece
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