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sample: fix CustomScrollable sample to prevent too high Upper values

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Upper values having higher values than PageSize or PageIncrement cause
rendering issues. This commit is a small adaptation of a fix from one
of the edge cases pointed out in this commit in hyena:
https://git.gnome.org/browse/hyena/commit/?h=gtk3&id=0745bfb75809886925dfa49a57c79e5f71565d08
This commit is contained in:
Andrés G. Aragoneses 2013-08-30 22:00:47 +02:00
parent 6e0efb08f2
commit 26c7ef4cd9
1 changed files with 6 additions and 0 deletions
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6
sample/CustomScrollableWidget.cs
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@ -184,6 +184,9 @@ class CustomScrollableWidget<T> : CustomBase, IScrollableImplementor {
if (hadjustment.Value + hadjustment.PageSize > hadjustment.Upper) { if (hadjustment.Value + hadjustment.PageSize > hadjustment.Upper) {
hadjustment.Value = hadjustment.Upper - hadjustment.PageSize; hadjustment.Value = hadjustment.Upper - hadjustment.PageSize;
} }
if (hadjustment.Upper > 0 && hadjustment.Upper < hadjustment.PageSize) {
hadjustment.Upper = hadjustment.PageSize;
}
hadjustment.Change (); hadjustment.Change ();
} }
@ -193,6 +196,9 @@ class CustomScrollableWidget<T> : CustomBase, IScrollableImplementor {
if (vadjustment.Value + vadjustment.PageSize > vadjustment.Upper) { if (vadjustment.Value + vadjustment.PageSize > vadjustment.Upper) {
vadjustment.Value = vadjustment.Upper - vadjustment.PageSize; vadjustment.Value = vadjustment.Upper - vadjustment.PageSize;
} }
if (vadjustment.Upper > 0 && vadjustment.Upper < vadjustment.PageSize) {
vadjustment.Upper = vadjustment.PageSize;
}
vadjustment.Change (); vadjustment.Change ();
} }
} }