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Restore the selected cells in reload column

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@9046 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Nicola Pero 2001-02-07 23:13:32 +00:00
parent 695d12c014
commit 15ee05af34
1 changed files with 41 additions and 0 deletions
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41
Source/NSBrowser.m
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@ -1024,6 +1024,10 @@ static float scrollerWidth; // == [NSScroller scrollerWidth]
- (void)reloadColumn: (int)column
{
id bc;
NSArray *selectedCells;
NSMatrix *matrix;
int i, count, max;
int *selectedIndexes = NULL;
#if defined NSBTRACE_reloadColumn || defined NSBTRACE_all
fprintf(stderr, "NSBrowser - (void)reloadColumn: %d\n", column);
@ -1049,10 +1053,47 @@ static float scrollerWidth; // == [NSScroller scrollerWidth]
return;
}
// Save the index of the previously selected cells
matrix = [self matrixInColumn: column];
selectedCells = [matrix selectedCells];
count = [selectedCells count];
if (count > 0)
{
selectedIndexes = NSZoneMalloc (NSDefaultMallocZone (),
sizeof (int) * count);
for (i = 0; i < count; i++)
{
NSCell *cell = [selectedCells objectAtIndex: i];
int sRow, sColumn;
[matrix getRow: &sRow column: &sColumn ofCell: cell];
selectedIndexes[i] = sRow;
}
}
// Perform the data load
[self _performLoadOfColumn: column];
[self _adjustMatrixOfColumn: column];
// Restore the selected cells
if (count > 0)
{
matrix = [self matrixInColumn: column];
max = [matrix numberOfRows];
for (i = 0; i < count; i++)
{
// Abort when it stops making sense
if (selectedIndexes[i] > max)
{
break;
}
[matrix selectCellAtRow: selectedIndexes[i] column: 0];
}
NSZoneFree (NSDefaultMallocZone (), selectedIndexes);
}
// set last column loaded
[self setLastColumn: column];
}