278 lines
7.1 KiB
C++
278 lines
7.1 KiB
C++
/*
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* Platform Specification Implementation
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* Nana C++ Library(http://www.nanapro.org)
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* Copyright(C) 2003-2015 Jinhao(cnjinhao@hotmail.com)
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*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* @file: nana/detail/platform_spec.cpp
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*
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* This file provides basis class and data structrue that required by nana
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*/
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#include <nana/config.hpp>
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#include PLATFORM_SPEC_HPP
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#include <shellapi.h>
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#include <stdexcept>
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namespace nana
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{
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namespace detail
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{
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drawable_impl_type::drawable_impl_type()
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{
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pen.handle = nullptr;
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pen.color = 0xffffffff;
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pen.style = -1;
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pen.width = -1;
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brush.handle = nullptr;
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brush.style = brush_spec::Solid;
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brush.color = 0xffffffff;
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round_region.handle = nullptr;
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round_region.radius_x = round_region.radius_y = 0;
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string.tab_length = 4;
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string.tab_pixels = 0;
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string.whitespace_pixels = 0;
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}
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drawable_impl_type::~drawable_impl_type()
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{
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::DeleteDC(context);
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::DeleteObject(pixmap);
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::DeleteObject(pen.handle);
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::DeleteObject(brush.handle);
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::DeleteObject(round_region.handle);
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}
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void drawable_impl_type::fgcolor(const ::nana::color& clr)
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{
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set_text_color(clr);
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}
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unsigned drawable_impl_type::get_color() const
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{
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return color_;
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}
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void drawable_impl_type::set_color(const ::nana::color& clr)
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{
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color_ = clr.px_color().value;
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}
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void drawable_impl_type::set_text_color(const ::nana::color& clr)
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{
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auto rgb = clr.px_color().value;
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if (text_color_ != rgb)
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{
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::SetTextColor(context, NANA_RGB(rgb));
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text_color_ = rgb;
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}
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}
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void drawable_impl_type::update_pen()
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{
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if (pen.color != color_)
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{
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pen.handle = ::CreatePen(PS_SOLID, 1, NANA_RGB(color_));
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::DeleteObject(::SelectObject(context, pen.handle));
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pen.color = color_;
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}
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}
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void drawable_impl_type::update_brush()
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{
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if (brush.color != color_)
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brush.set(context, brush.style, color_);
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}
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void drawable_impl_type::pen_spec::set(HDC context, int style, int width, unsigned clr)
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{
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if (this->color != clr || this->width != width || this->style != style)
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{
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this->color = clr;
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this->width = width;
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this->style = style;
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this->handle = ::CreatePen(style, width, NANA_RGB(clr));
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::DeleteObject(::SelectObject(context, this->handle));
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}
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}
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void drawable_impl_type::brush_spec::set(HDC context, drawable_impl_type::brush_spec::t style, unsigned rgb)
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{
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if (this->color != rgb || this->style != style)
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{
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this->color = rgb;
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this->style = style;
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switch(style)
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{
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case brush_spec::HatchBDiagonal:
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this->handle = ::CreateHatchBrush(HS_BDIAGONAL, NANA_RGB(rgb));
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break;
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case brush_spec::Solid:
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default:
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this->style = brush_spec::Solid;
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this->handle = ::CreateSolidBrush(NANA_RGB(color));
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break;
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}
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::DeleteObject(::SelectObject(context, this->handle));
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}
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}
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void drawable_impl_type::round_region_spec::set(const nana::rectangle& r, unsigned radius_x, unsigned radius_y)
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{
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if(this->r != r || this->radius_x != radius_x || this->radius_y != radius_y)
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{
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if(handle)
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::DeleteObject(this->handle);
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this->r = r;
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this->radius_x = radius_x;
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this->radius_y = radius_y;
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handle = ::CreateRoundRectRgn(r.x, r.y, r.x + static_cast<int>(r.width) + 1, r.y + static_cast<int>(r.height) + 1, static_cast<int>(radius_x + 1), static_cast<int>(radius_y + 1));
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}
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}
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//struct font_tag::deleter
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void font_tag::deleter::operator()(const font_tag* tag) const
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{
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if(tag && tag->handle)
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::DeleteObject(tag->handle);
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delete tag;
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}
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//end struct font_tag::deleter
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//class platform_spec
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platform_spec::co_initializer::co_initializer()
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: ole32_(::LoadLibrary(STR("OLE32.DLL")))
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{
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if(ole32_)
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{
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typedef HRESULT (__stdcall *CoInitializeEx_t)(LPVOID, DWORD);
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CoInitializeEx_t fn_init = reinterpret_cast<CoInitializeEx_t>(::GetProcAddress(ole32_, "CoInitializeEx"));
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if(0 == fn_init)
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{
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::FreeLibrary(ole32_);
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ole32_ = 0;
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throw std::runtime_error("Nana.PlatformSpec.Co_initializer: Can't locate the CoInitializeEx().");
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}
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else
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fn_init(0, COINIT_APARTMENTTHREADED | /*COINIT_DISABLE_OLE1DDE =*/0x4);
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}
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else
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throw std::runtime_error("Nana.PlatformSpec.Co_initializer: No Ole32.DLL Loaded.");
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}
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platform_spec::co_initializer::~co_initializer()
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{
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if(ole32_)
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{
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typedef void (__stdcall *CoUninitialize_t)(void);
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CoUninitialize_t fn_unin = reinterpret_cast<CoUninitialize_t>(::GetProcAddress(ole32_, "CoUninitialize"));
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if(fn_unin)
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fn_unin();
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::FreeLibrary(ole32_);
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}
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}
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platform_spec::platform_spec()
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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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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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#endif
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::SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof metrics, &metrics, 0);
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def_font_ptr_ = make_native_font(metrics.lfMessageFont.lfFaceName, font_size_to_height(9), 400, false, false, false);
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}
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const platform_spec::font_ptr_t& platform_spec::default_native_font() const
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{
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return def_font_ptr_;
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}
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void platform_spec::default_native_font(const font_ptr_t& fp)
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{
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def_font_ptr_ = fp;
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}
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unsigned platform_spec::font_size_to_height(unsigned size) const
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{
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HDC hdc = ::GetDC(0);
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size = ::MulDiv(int(size), ::GetDeviceCaps(hdc, LOGPIXELSY), 72);
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::ReleaseDC(0, hdc);
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return size;
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}
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unsigned platform_spec::font_height_to_size(unsigned height) const
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{
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HDC hdc = ::GetDC(0);
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unsigned pixels = ::GetDeviceCaps(hdc, LOGPIXELSY);
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::ReleaseDC(0, hdc);
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height = static_cast<unsigned>(static_cast<long long>(72) * height / pixels);
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return height;
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}
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platform_spec::font_ptr_t platform_spec::make_native_font(const nana::char_t* name, unsigned height, unsigned weight, bool italic, bool underline, bool strike_out)
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{
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::LOGFONT logfont;
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memset(&logfont, 0, sizeof logfont);
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strcpy(logfont.lfFaceName, (name && *name ? name : def_font_ptr_->name.c_str()));
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logfont.lfCharSet = DEFAULT_CHARSET;
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HDC hdc = ::GetDC(0);
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logfont.lfHeight = -static_cast<int>(height);
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::ReleaseDC(0, hdc);
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logfont.lfWidth = 0;
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logfont.lfWeight = weight;
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logfont.lfQuality = PROOF_QUALITY;
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logfont.lfPitchAndFamily = FIXED_PITCH;
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logfont.lfItalic = italic;
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logfont.lfUnderline = underline;
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logfont.lfStrikeOut = strike_out;
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HFONT result = ::CreateFontIndirect(&logfont);
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if(result)
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{
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font_tag * impl = new font_tag;
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impl->name = logfont.lfFaceName;
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impl->height = height;
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impl->weight = weight;
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impl->italic = italic;
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impl->underline = underline;
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impl->strikeout = strike_out;
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impl->handle = result;
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return std::shared_ptr<font_tag>(impl, font_tag::deleter());
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}
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return nullptr;
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}
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platform_spec& platform_spec::instance()
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{
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static platform_spec object;
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return object;
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}
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void platform_spec::keep_window_icon(native_window_type wd, const paint::image& img)
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{
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iconbase_[wd] = img;
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}
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void platform_spec::release_window_icon(native_window_type wd)
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{
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iconbase_.erase(wd);
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}
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}//end namespace detail
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}//end namespace nana
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