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add an overloading function of listbox::scroll

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clicking horizontal barre moves "one letter"
This commit is contained in:
Jinhao 2015-11-05 23:47:48 +08:00
parent 0ddee51568
commit 408b4f408b
2 changed files with 9 additions and 0 deletions
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1
include/nana/gui/widgets/listbox.hpp
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@ -558,6 +558,7 @@ By \a clicking on one header the list get \a reordered, first up, and then down
/// Scrolls the view to the first or last item of a specified category
void scroll(bool to_bottom, size_type cat_pos = ::nana::npos);
void scroll(bool to_bottom, const index_pair& pos);
/// Appends a new column with a header text and the specified width at the end, and return it position
size_type append_header(nana::string header_text, unsigned width = 120);

8
source/gui/widgets/listbox.cpp
View File

@ -2008,6 +2008,7 @@ namespace nana
scroll.h.amount(header.pixels());
scroll.h.range(graph->width() - width);
scroll.h.value(scroll.offset_x);
scroll.h.step(graph->text_extent_size(L"W").width);
}
if(scroll.v.empty() == false)
@ -4259,6 +4260,13 @@ namespace nana
ess.update();
}
void listbox::scroll(bool to_bottom, const index_pair& pos)
{
auto & ess = _m_ess();
ess.lister.scroll(pos, to_bottom);
ess.update();
}
listbox::size_type listbox::append_header(nana::string text, unsigned width)
{
auto & ess = _m_ess();