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[NSBrowser -_performLoadOfColumn:] : improved performance when loading

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previously unloaded column with a passive delegate


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@10732 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Pierre-Yves Rivaille 2001-08-20 10:12:11 +00:00
parent 08c97488f8
commit ab5209f426
1 changed files with 32 additions and 5 deletions
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37
Source/NSBrowser.m
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@ -437,7 +437,9 @@ static double rint(double a)
// -------------------
// Loads if necessary and returns the NSCell at row in column.
//
// if you change this code, you may want to look at the
// _loadColumn method in which the following code is integrated
// (for speed)
- (id)loadedCellAtRow: (int)row
column: (int)column
{
@ -2879,10 +2881,35 @@ static double rint(double a)
[sc setDocumentView: matrix];
// Now loop through the cells and load each one
for (i = 0; i < n; i++)
{
[self loadedCellAtRow: i column: column];
}
{
NSBrowserColumn *bc;
id matrix;
id aCell;
bc = [_browserColumns objectAtIndex: column];
matrix = [bc columnMatrix];
if (_passiveDelegate || [_browserDelegate respondsToSelector:
@selector(browser:willDisplayCell:atRow:column:)])
{
SEL sel1 =
@selector(browser:willDisplayCell:atRow:column:);
IMP imp1 =
[_browserDelegate methodForSelector: sel1];
SEL sel2 =
@selector(cellAtRow:column:);
IMP imp2 =
[matrix methodForSelector: sel2];
for (i = 0; i < n; i++)
{
aCell = (*imp2)(matrix, sel2, i, 0);
if (![aCell isLoaded])
{
(*imp1)(_browserDelegate, sel1,
self, aCell, i, column);
[aCell setLoaded: YES];
}
}
}
}
}
}
else