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listbox header font

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This commit is contained in:
Jinhao
2017-11-21 17:20:47 +08:00
parent a57c7ac409
commit b71427334a
8 changed files with 203 additions and 30 deletions
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56
source/detail/platform_abstraction.cpp
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@@ -255,6 +255,35 @@ namespace nana
data::storage = nullptr;
}
double platform_abstraction::font_default_pt()
{
#ifdef NANA_WINDOWS
//Create default font object.
NONCLIENTMETRICS metrics = {};
metrics.cbSize = sizeof metrics;
#if(WINVER >= 0x0600)
#if defined(NANA_MINGW)
OSVERSIONINFO osvi = {};
osvi.dwOSVersionInfoSize = sizeof(osvi);
::GetVersionEx(&osvi);
if (osvi.dwMajorVersion < 6)
metrics.cbSize -= sizeof(metrics.iPaddedBorderWidth);
#else
if (!IsWindowsVistaOrGreater())
metrics.cbSize -= sizeof(metrics.iPaddedBorderWidth);
#endif
#endif
::SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof metrics, &metrics, 0);
auto desktop = ::GetDC(nullptr);
auto pt = std::abs(metrics.lfMessageFont.lfHeight) * 72.0 / ::GetDeviceCaps(desktop, LOGPIXELSY);
::ReleaseDC(nullptr, desktop);
return pt;
#else
return 10;
#endif
}
::std::shared_ptr<platform_abstraction::font> platform_abstraction::default_font(const ::std::shared_ptr<font>& new_font)
{
auto & r = platform_storage();
@@ -337,7 +366,7 @@ namespace nana
if(font_family.empty())
font_family = '*';
std::string pat_str = font_family + '-' + std::to_string(size_pt ? size_pt : 10);
std::string pat_str = font_family + '-' + std::to_string(size_pt ? size_pt : font_default_pt());
auto pat = ::XftNameParse(pat_str.c_str());
XftResult res;
auto match_pat = ::XftFontMatch(disp, ::XDefaultScreen(disp), pat, &res);
@@ -407,6 +436,31 @@ namespace nana
::FcConfigAppFontClear(nullptr);
}
}
#endif
}
unsigned platform_abstraction::screen_dpi(bool x_requested)
{
#ifdef NANA_WINDOWS
auto hdc = ::GetDC(nullptr);
auto dots = static_cast<unsigned>(::GetDeviceCaps(hdc, (x_requested ? LOGPIXELSX : LOGPIXELSY)));
::ReleaseDC(nullptr, hdc);
return dots;
#else
auto & spec = ::nana::detail::platform_spec::instance();
auto disp = spec.open_display();
auto screen = ::XDefaultScreen(disp);
double dots;
if (x_requested)
dots += ((((double)DisplayWidth(disp, screen)) * 25.4) /
((double)DisplayWidthMM(disp, screen)));
else
dots += ((((double)DisplayHeight(disp, screen)) * 25.4) /
((double)DisplayHeightMM(disp, screen)));
return static_cast<unsigned>(dots + 0.5);
#endif
}
}