413 lines
10 KiB
C++
413 lines
10 KiB
C++
#include "platform_abstraction.hpp"
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#include <nana/deploy.hpp>
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#include "../paint/truetype.hpp"
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#ifdef NANA_WINDOWS
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# ifndef _WIN32_WINNT
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# define _WIN32_WINNT 0x0501
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# endif
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# include <windows.h>
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///////////////////////////////////////////////////////////////////////////////////////////////////////
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/******************************************************************
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* *
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* VersionHelpers.h -- This module defines helper functions to *
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* promote version check with proper *
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* comparisons. *
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* *
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* Copyright (c) Microsoft Corp. All rights reserved. *
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* *
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******************************************************************/
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#include <specstrings.h> // for _In_, etc.
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#if !defined(__midl) && !defined(SORTPP_PASS)
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#if (NTDDI_VERSION >= NTDDI_WINXP)
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#ifdef __cplusplus
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#define VERSIONHELPERAPI inline bool
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#else // __cplusplus
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#define VERSIONHELPERAPI FORCEINLINE BOOL
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#endif // __cplusplus
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VERSIONHELPERAPI
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IsWindowsVersionOrGreater(WORD wMajorVersion, WORD wMinorVersion, WORD wServicePackMajor)
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{
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OSVERSIONINFOEXW osvi = { sizeof(osvi), 0, 0, 0, 0, { 0 }, 0, 0 };
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DWORDLONG const dwlConditionMask = VerSetConditionMask(
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VerSetConditionMask(
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VerSetConditionMask(
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0, VER_MAJORVERSION, VER_GREATER_EQUAL),
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VER_MINORVERSION, VER_GREATER_EQUAL),
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VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
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osvi.dwMajorVersion = wMajorVersion;
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osvi.dwMinorVersion = wMinorVersion;
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osvi.wServicePackMajor = wServicePackMajor;
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return VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR, dwlConditionMask) != FALSE;
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}
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#ifndef _WIN32_WINNT_WINXP
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# define _WIN32_WINNT_WINXP 0x0501
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#endif // _WIN32_WINNT_WINXP
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#ifndef _WIN32_WINNT_VISTA
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# define _WIN32_WINNT_VISTA 0x0600
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#endif // _WIN32_WINNT_VISTA
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#ifndef _WIN32_WINNT_WIN7
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# define _WIN32_WINNT_WIN7 0x0601
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#endif // _WIN32_WINNT_WIN7
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VERSIONHELPERAPI
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IsWindowsXPOrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 0);
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}
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VERSIONHELPERAPI
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IsWindowsXPSP1OrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 1);
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}
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VERSIONHELPERAPI
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IsWindowsXPSP2OrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 2);
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}
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VERSIONHELPERAPI
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IsWindowsXPSP3OrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 3);
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}
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VERSIONHELPERAPI
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IsWindowsVistaOrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 0);
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}
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VERSIONHELPERAPI
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IsWindowsVistaSP1OrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 1);
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}
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VERSIONHELPERAPI
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IsWindowsVistaSP2OrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 2);
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}
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VERSIONHELPERAPI
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IsWindows7OrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN7), LOBYTE(_WIN32_WINNT_WIN7), 0);
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}
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VERSIONHELPERAPI
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IsWindows7SP1OrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN7), LOBYTE(_WIN32_WINNT_WIN7), 1);
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}
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#ifndef _WIN32_WINNT_WIN8 // (0x0602)
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#define _WIN32_WINNT_WIN8 (0x0602)
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#endif // _WIN32_WINNT_WIN8(0x0602)
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VERSIONHELPERAPI
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IsWindows8OrGreater()
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{
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return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN8), LOBYTE(_WIN32_WINNT_WIN8), 0);
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}
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#ifndef _WIN32_WINNT_WINBLUE // (0x0602)
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#define _WIN32_WINNT_WINBLUE (0x0602)
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#endif // _WIN32_WINNT_WINBLUE (0x0602)
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#endif // NTDDI_VERSION
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#endif // defined(__midl)
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#else
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# include "posix/platform_spec.hpp"
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# include <fontconfig/fontconfig.h>
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# if defined(NANA_USE_XFT)
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# include <X11/Xft/Xft.h>
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# include <iconv.h>
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# include <fstream>
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# endif
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#endif
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namespace nana
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{
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class internal_font
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: public font_interface
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{
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public:
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using path_type = std::experimental::filesystem::path;
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internal_font(const path_type& ttf, const std::string& font_family, double font_size, const font_style& fs, native_font_type native_font):
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ttf_(ttf),
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family_(font_family),
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size_(font_size),
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style_(fs),
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native_handle_(native_font)
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{}
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~internal_font()
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{
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#ifdef NANA_WINDOWS
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::DeleteObject(reinterpret_cast<HFONT>(native_handle_));
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#elif defined(NANA_X11)
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auto disp = ::nana::detail::platform_spec::instance().open_display();
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# ifdef NANA_USE_XFT
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::XftFontClose(disp, reinterpret_cast<XftFont*>(native_handle_));
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# else
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::XFreeFontSet(disp, reinterpret_cast<XFontSet>(native_handle_));
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# endif
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#endif
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if (!ttf_.empty())
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platform_abstraction::font_resource(false, ttf_);
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}
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public:
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const std::string& family() const override
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{
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return family_;
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}
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double size() const override
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{
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return size_;
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}
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const font_style & style() const override
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{
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return style_;
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}
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native_font_type native_handle() const override
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{
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return native_handle_;
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}
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private:
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path_type const ttf_;
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std::string const family_;
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double const size_;
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font_style const style_;
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native_font_type const native_handle_;
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};
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struct platform_runtime
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{
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std::shared_ptr<font_interface> font;
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#ifdef NANA_X11
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std::map<std::string, std::size_t> fontconfig_counts;
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#endif
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};
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namespace
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{
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namespace data
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{
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static platform_runtime* storage;
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}
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}
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static platform_runtime& platform_storage()
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{
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if (nullptr == data::storage)
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throw std::runtime_error("platform_abstraction is empty");
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return *data::storage;
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}
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void platform_abstraction::initialize()
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{
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if (nullptr == data::storage)
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data::storage = new platform_runtime;
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}
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void platform_abstraction::shutdown()
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{
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auto & r = platform_storage();
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if (r.font.use_count() > 1)
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throw std::runtime_error("platform_abstraction is disallowed to shutdown");
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r.font.reset();
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delete data::storage;
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data::storage = nullptr;
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}
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::std::shared_ptr<platform_abstraction::font> platform_abstraction::default_font(const ::std::shared_ptr<font>& new_font)
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{
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auto & r = platform_storage();
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if (new_font)
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{
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auto f = r.font;
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if (new_font != r.font)
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r.font = new_font;
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return f;
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}
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if (!r.font)
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r.font = make_font({}, 0, {});
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return r.font;
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}
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static std::shared_ptr<platform_abstraction::font> font_factory(::std::string font_family, double size_pt, const platform_abstraction::font::font_style& fs, internal_font::path_type ttf)
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{
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using native_font_type = platform_abstraction::font::native_font_type;
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#ifdef NANA_WINDOWS
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std::wstring wfont_family = to_nstring(font_family);
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//Make sure the length of font family less than LF_FACESIZE which is defined by Windows
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if (wfont_family.length() + 1 > LF_FACESIZE)
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wfont_family.clear();
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//Translate pt to px
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auto hDC = ::GetDC(nullptr);
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auto font_height = -static_cast<LONG>(size_pt * ::GetDeviceCaps(hDC, LOGPIXELSY) / 72);
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::ReleaseDC(nullptr, hDC);
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if (wfont_family.empty() || (0 == font_height))
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{
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//Create default font object.
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NONCLIENTMETRICS metrics = {};
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metrics.cbSize = sizeof metrics;
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#if(WINVER >= 0x0600)
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#if defined(NANA_MINGW)
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OSVERSIONINFO osvi = {};
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osvi.dwOSVersionInfoSize = sizeof(osvi);
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::GetVersionEx(&osvi);
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if (osvi.dwMajorVersion < 6)
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metrics.cbSize -= sizeof(metrics.iPaddedBorderWidth);
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#else
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if (!IsWindowsVistaOrGreater())
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metrics.cbSize -= sizeof(metrics.iPaddedBorderWidth);
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#endif
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#endif
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::SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof metrics, &metrics, 0);
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if (wfont_family.empty())
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{
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wfont_family = metrics.lfMessageFont.lfFaceName;
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font_family = to_utf8(wfont_family);
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}
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if (0 == font_height)
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font_height = metrics.lfMessageFont.lfHeight;
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}
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::LOGFONT lf{};
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std::wcscpy(lf.lfFaceName, wfont_family.c_str());
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lf.lfHeight = font_height;
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lf.lfCharSet = DEFAULT_CHARSET;
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lf.lfWeight = fs.weight;
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lf.lfQuality = PROOF_QUALITY;
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lf.lfPitchAndFamily = FIXED_PITCH;
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lf.lfItalic = fs.italic;
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lf.lfUnderline = fs.underline;
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lf.lfStrikeOut = fs.strike_out;
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auto fd = ::CreateFontIndirect(&lf);
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#elif defined(NANA_X11)
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auto disp = ::nana::detail::platform_spec::instance().open_display();
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# ifdef NANA_USE_XFT
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if(font_family.empty())
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font_family = '*';
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std::string pat_str = font_family + '-' + std::to_string(size_pt ? size_pt : 10);
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auto pat = ::XftNameParse(pat_str.c_str());
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XftResult res;
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auto match_pat = ::XftFontMatch(disp, ::XDefaultScreen(disp), pat, &res);
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::XftFont* fd = nullptr;
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if (match_pat)
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fd = ::XftFontOpenPattern(disp, match_pat);
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# else
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std::string pat_str;
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if (font_family.empty())
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pat_str = "-misc-fixed-*";
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else
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pat_str = "-misc-fixed-" + font_family;
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char ** missing_list;
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int missing_count;
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char * defstr;
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XFontSet fd = ::XCreateFontSet(display_, const_cast<char*>(pat_str.c_str()), &missing_list, &missing_count, &defstr);
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# endif
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#endif
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if (fd)
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return std::make_shared<internal_font>(std::move(ttf), std::move(font_family), size_pt, fs, reinterpret_cast<native_font_type>(fd));
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return{};
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}
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::std::shared_ptr<platform_abstraction::font> platform_abstraction::make_font(const std::string& font_family, double size_pt, const font::font_style& fs)
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{
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return font_factory(font_family, size_pt, fs, {});
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}
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::std::shared_ptr<platform_abstraction::font> platform_abstraction::make_font_from_ttf(const path_type& ttf, double size_pt, const font::font_style& fs)
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{
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::nana::spec::truetype truetype{ ttf };
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if (truetype.font_family().empty())
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return nullptr;
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font_resource(true, ttf);
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return font_factory(truetype.font_family(), size_pt, fs, ttf);
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}
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void platform_abstraction::font_resource(bool try_add, const path_type& ttf)
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{
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#ifdef NANA_WINDOWS
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if (try_add)
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::AddFontResourceEx(ttf.wstring().c_str(), FR_PRIVATE, nullptr);
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else
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::RemoveFontResourceEx(ttf.wstring().c_str(), FR_PRIVATE, nullptr);
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#else
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auto & fc = platform_storage().fontconfig_counts;
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if(try_add)
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{
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if(1 == ++(fc[ttf.string()]))
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{
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::FcConfigAppFontAddFile(nullptr, reinterpret_cast<const FcChar8*>(ttf.string().c_str()));
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}
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}
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else
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{
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auto i = fc.find(ttf.string());
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if(i != fc.end())
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{
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if(0 == --(i->second))
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fc.erase(i);
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if(0 == fc.size())
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::FcConfigAppFontClear(nullptr);
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}
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}
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#endif
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}
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}
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