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(svn r18508) -Fix [FS#3372]: if a rail station class had less data than capacity it would try to set a negative position

This commit is contained in:
rubidium 2009-12-15 01:38:55 +00:00
parent 619e70f94a
commit 7c2a61e210
2 changed files with 2 additions and 1 deletions
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1
src/core/math_func.hpp
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@ -150,6 +150,7 @@ static FORCEINLINE T *AlignPtr(T *x, uint n)
template <typename T>
static FORCEINLINE T Clamp(const T a, const T min, const T max)
{
assert(min <= max);
if (a <= min) return min;
if (a >= max) return max;
return a;

2
src/rail_gui.cpp
View File

@ -1017,7 +1017,7 @@ public:
this->vscroll.SetCount(_railstation.station_count);
this->vscroll.SetCapacity(GB(this->GetWidget<NWidgetCore>(BRSW_NEWST_LIST)->widget_data, MAT_ROW_START, MAT_ROW_BITS));
this->vscroll.SetPosition(Clamp(_railstation.station_type - 2, 0, this->vscroll.GetCount() - this->vscroll.GetCapacity()));
this->vscroll.SetPosition(Clamp(_railstation.station_type - 2, 0, max(this->vscroll.GetCount() - this->vscroll.GetCapacity(), 0)));
} else {
/* New stations are not available, so ensure the default station
* type is 'selected'. */