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fix issue that scroll returns bad value

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because range > peak
This commit is contained in:
Jinhao 2017-02-07 06:36:19 +08:00
parent 168842e2cf
commit 7a32fa2767
1 changed files with 3 additions and 1 deletions
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4
include/nana/gui/widgets/scroll.hpp
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@ -122,7 +122,9 @@ namespace nana
void value(size_type s) void value(size_type s)
{ {
if (s + metrics_.range > metrics_.peak) if (metrics_.range > metrics_.peak)
s = 0;
else if (s + metrics_.range > metrics_.peak)
s = metrics_.peak - metrics_.range; s = metrics_.peak - metrics_.range;
if (graph_ && (metrics_.value != s)) if (graph_ && (metrics_.value != s))