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When moving vertically, return the index of the character nearest the target horizontally.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@15958 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Alexander Malmberg 2003-02-14 17:00:04 +00:00
parent 6d1c78032a
commit c56d68453d
1 changed files with 15 additions and 3 deletions
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18
Source/NSLayoutManager.m
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@ -809,7 +809,7 @@ has the same y origin and height as the line frag rect it is in.
if (direction == GSInsertionPointMoveUp ||
direction == GSInsertionPointMoveDown)
{
NSRect orig_rect;
NSRect orig_rect, prev_rect;
int orig_tc;
float target;
textcontainer_t *tc;
@ -902,17 +902,29 @@ has the same y origin and height as the line frag rect it is in.
}
/* Now find the target character in the line. */
new_rect = [self _insertionPointRectForCharacterIndex: new
textContainer: &new_tc];
while (new < length)
{
prev_rect = new_rect;
new_rect = [self _insertionPointRectForCharacterIndex: new + 1
textContainer: &new_tc];
if (new_tc != from_tc)
break;
if (new_rect.origin.y != lf->rect.origin.y)
break;
new++;
if (NSMinX(new_rect) >= target)
break;
{
/*
'new+1' is beyond 'target', so either 'new' or 'new+1' is the
character we want. Pick the closest one. (Note that 'new' might
also be beyond 'target'.)
*/
if (fabs(NSMinX(new_rect) - target) < fabs(NSMinX(prev_rect) - target))
new++;
return new;
}
new++;
}
return new;
}