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std::string_view

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This commit is contained in:
Jinhao
2018-06-07 03:41:08 +08:00
parent 549b3d4353
commit 3427181405
12 changed files with 251 additions and 44 deletions
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91
source/paint/detail/native_paint_interface.cpp
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@@ -134,29 +134,80 @@ namespace detail
pixbuf.paste(nana::rectangle(r.x, 0, r.width, r.height), dw, point{r.x, r.y});
}
nana::size raw_text_extent_size(drawable_type dw, const wchar_t* text, std::size_t len)
nana::size real_text_extent_size(drawable_type dw, const wchar_t* text, std::size_t len)
{
if(nullptr == dw || nullptr == text || 0 == len) return nana::size();
if (dw && text && len)
{
#if defined(NANA_WINDOWS)
::SIZE size;
if(::GetTextExtentPoint32(dw->context, text, static_cast<int>(len), &size))
return nana::size(size.cx, size.cy);
::SIZE size;
if (::GetTextExtentPoint32(dw->context, text, static_cast<int>(len), &size))
return nana::size(size.cx, size.cy);
#elif defined(NANA_X11)
#if defined(NANA_USE_XFT)
std::string utf8str = to_utf8(std::wstring(text, len));
XGlyphInfo ext;
XftFont * fs = reinterpret_cast<XftFont*>(dw->font->native_handle());
::XftTextExtentsUtf8(nana::detail::platform_spec::instance().open_display(), fs,
reinterpret_cast<XftChar8*>(const_cast<char*>(utf8str.c_str())), utf8str.size(), &ext);
return nana::size(ext.xOff, fs->ascent + fs->descent);
#else
XRectangle ink;
XRectangle logic;
::XmbTextExtents(reinterpret_cast<XFontSet>(dw->font->native_handle()), text, len, &ink, &logic);
return nana::size(logic.width, logic.height);
#endif
std::string utf8str = to_utf8(std::wstring(text, len));
#if defined(NANA_USE_XFT)
XGlyphInfo ext;
XftFont * fs = reinterpret_cast<XftFont*>(dw->font->native_handle());
::XftTextExtentsUtf8(nana::detail::platform_spec::instance().open_display(), fs,
reinterpret_cast<XftChar8*>(const_cast<char*>(utf8text.data())), utf8text.size(), &ext);
return nana::size(ext.xOff, fs->ascent + fs->descent);
#else
XRectangle ink;
XRectangle logic;
::XmbTextExtents(reinterpret_cast<XFontSet>(dw->font->native_handle()), utf8str.c_str(), utf8str.size(), &ink, &logic);
return nana::size(logic.width, logic.height);
#endif
return nana::size();
#endif
}
return {};
}
nana::size real_text_extent_size(drawable_type dw, const char* text, std::size_t len)
{
if (dw && text && len)
{
#if defined(NANA_WINDOWS)
auto wstr = to_wstring(std::string(text,len));
::SIZE size;
if (::GetTextExtentPoint32(dw->context, wstr.c_str(), static_cast<int>(wstr.size()), &size))
return nana::size(size.cx, size.cy);
#elif defined(NANA_X11)
#if defined(NANA_USE_XFT)
XGlyphInfo ext;
XftFont * fs = reinterpret_cast<XftFont*>(dw->font->native_handle());
::XftTextExtentsUtf8(nana::detail::platform_spec::instance().open_display(), fs,
reinterpret_cast<XftChar8*>(const_cast<char*>(text)), len, &ext);
return nana::size(ext.xOff, fs->ascent + fs->descent);
#else
XRectangle ink;
XRectangle logic;
::XmbTextExtents(reinterpret_cast<XFontSet>(dw->font->native_handle()), text, len, &ink, &logic);
return nana::size(logic.width, logic.height);
#endif
#endif
}
return {};
}
nana::size text_extent_size(drawable_type dw, const char * text, std::size_t len)
{
if (nullptr == dw || nullptr == text || 0 == len)
return{};
nana::size extents = real_text_extent_size(dw, text, len);
auto const end = text + len;
int tabs = 0;
for (; text != end; ++text)
{
if (*text == '\t')
++tabs;
}
if (tabs)
extents.width = static_cast<int>(extents.width) - tabs * static_cast<int>(dw->string.tab_pixels - dw->string.whitespace_pixels * dw->string.tab_length);
return extents;
}
nana::size text_extent_size(drawable_type dw, const wchar_t * text, std::size_t len)
@@ -164,7 +215,7 @@ namespace detail
if (nullptr == dw || nullptr == text || 0 == len)
return{};
nana::size extents = raw_text_extent_size(dw, text, len);
nana::size extents = real_text_extent_size(dw, text, len);
const wchar_t* const end = text + len;
int tabs = 0;