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add new function: Menu::CurrentlyDrawedPosition()

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this'll be used to simplify displaying currently playing item
This commit is contained in:
Andrzej Rybczak
2009-09-20 22:23:03 +02:00
parent d995b9f065
commit b47ad169dc
1 changed files with 9 additions and 1 deletions
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10
src/menu.h
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@@ -451,6 +451,12 @@ namespace NCurses
/// ///
virtual size_t Size() const; virtual size_t Size() const;
/// @return position of currently drawed item. The result is
/// defined only within drawing function that is called by Refresh()
/// @see Refresh()
///
size_t CurrentlyDrawedPosition() const { return itsCurrentlyDrawedPosition; }
/// @return reference to last item on the list /// @return reference to last item on the list
/// @throw List::InvalidItem if requested item is separator /// @throw List::InvalidItem if requested item is separator
/// ///
@@ -523,6 +529,8 @@ namespace NCurses
bool highlightEnabled; bool highlightEnabled;
bool useCyclicScrolling; bool useCyclicScrolling;
size_t itsCurrentlyDrawedPosition;
Buffer *itsSelectedPrefix; Buffer *itsSelectedPrefix;
Buffer *itsSelectedSuffix; Buffer *itsSelectedSuffix;
}; };
@@ -714,7 +722,7 @@ template <typename T> void NCurses::Menu<T>::Refresh()
} }
size_t line = 0; size_t line = 0;
for (size_t i = itsBeginning; i < itsBeginning+itsHeight; ++i) for (size_t &i = (itsCurrentlyDrawedPosition = itsBeginning); i < itsBeginning+itsHeight; ++i)
{ {
GotoXY(0, line); GotoXY(0, line);
if (i >= itsOptionsPtr->size()) if (i >= itsOptionsPtr->size())