1 | #include "stdafx.h"
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2 | #include <vector>
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3 | #include <utility>
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4 | #include <boost/range.hpp>
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5 | #include <boost/range/adaptor/transformed.hpp>
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6 | #include <boost/numeric/conversion/cast.hpp>
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7 | #include <Resource/Load.h>
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8 |
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9 | using boost::numeric_cast;
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10 |
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11 | namespace ActiveBasic { namespace Resource {
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12 |
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13 | namespace {
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14 |
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15 | template<typename Map, typename Key, typename AddValueFunctor>
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16 | typename Map::iterator GetCacheFromMap(Map& map, Key key, AddValueFunctor f)
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17 | {
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18 | auto low = map.lower_bound(key);
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19 | if (low != map.end() && map.key_comp()(key, low->first))
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20 | {
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21 | return low;
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22 | }
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23 | else
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24 | {
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25 | typedef typename Map::key_type key_type;
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26 | typedef typename Map::value_type value_type;
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27 | return map.insert(low, std::make_pair(std::move(key), f()));
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28 | }
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29 | }
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30 |
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31 | void* GetResource(HINSTANCE hinst, USHORT id, LPCTSTR type)
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32 | {
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33 | if (auto hrsrc = ::FindResource(hinst, MAKEINTRESOURCE(id), type))
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34 | {
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35 | if (auto hSrc = ::LoadResource(hinst, hrsrc))
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36 | {
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37 | return ::LockResource(hSrc);
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38 | }
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39 | }
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40 | return nullptr;
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41 | }
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42 |
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43 | std::pair<void*, DWORD> GetResourceWithSize(HINSTANCE hinst, USHORT id, LPCTSTR type)
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44 | {
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45 | typedef std::pair<void*, DWORD> result_type;
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46 | if (auto hrsrc = ::FindResource(hinst, MAKEINTRESOURCE(id), type))
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47 | {
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48 | if (auto hSrc = ::LoadResource(hinst, hrsrc))
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49 | {
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50 | auto p = ::LockResource(hSrc);
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51 | auto size = ::SizeofResource(hinst, hrsrc);
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52 | if (p != nullptr && size > 0)
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53 | {
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54 | return result_type(p, size);
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55 | }
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56 | }
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57 | }
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58 | return result_type(nullptr, 0);
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59 | }
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60 |
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61 | HICON LoadIconCursorImpl(HINSTANCE hinst, USHORT id, int cxDesired, int cyDesired, UINT load, bool isIcon)
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62 | {
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63 | auto pResource = GetResource(hinst, id, isIcon ? RT_GROUP_ICON : RT_GROUP_CURSOR);
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64 |
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65 | auto idIcon = LookupIconIdFromDirectoryEx(reinterpret_cast<PBYTE>(pResource), isIcon, cxDesired, cyDesired, load);
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66 | auto icon = GetResourceWithSize(hinst, numeric_cast<USHORT>(idIcon), isIcon ? RT_ICON : RT_CURSOR);
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67 |
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68 | return CreateIconFromResourceEx(reinterpret_cast<PBYTE>(icon.first),
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69 | icon.second, isIcon, 0x00030000, cxDesired, cyDesired, load);
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70 | }
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71 |
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72 | } // unnamed namespace
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73 |
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74 | HICON LoadIconAlt(HINSTANCE hinst, USHORT id, int cxDesired, int cyDesired, UINT load)
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75 | {
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76 | return LoadIconCursorImpl(hinst, id, cxDesired, cyDesired, load, true);
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77 | }
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78 |
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79 | HICON LoadIconAlt(HINSTANCE hinst, USHORT id)
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80 | {
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81 | return LoadIconCursorImpl(hinst, id, 32, 32, LR_SHARED, true);
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82 | }
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83 |
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84 | HCURSOR LoadCursorAlt(HINSTANCE hinst, USHORT id)
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85 | {
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86 | return LoadIconCursorImpl(hinst, id, 32, 32, LR_SHARED, false);
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87 | }
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88 |
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89 | // 文字列リソースの読み込みについては以下を参照。
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90 | // How To Use LoadResource to Load Strings from a String Table
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91 | // http://support.microsoft.com/kb/200893/en-us
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92 | boost::optional<std::wstring> LoadStringAlt(HINSTANCE hinst, USHORT id)
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93 | {
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94 | UINT idRsrcBlk = id / 16 + 1;
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95 | int strIndex = id % 16;
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96 |
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97 | auto hrsrc = FindResourceEx(hinst, RT_STRING, MAKEINTRESOURCE(idRsrcBlk), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT));
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98 | if (hrsrc == nullptr)
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99 | return boost::none;
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100 |
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101 | auto hRes = LoadResource(hinst, hrsrc);
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102 | if (hRes == nullptr)
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103 | return boost::none;
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104 | LPCWSTR p = static_cast<LPCWSTR>(LockResource(hRes));
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105 | if (p == nullptr)
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106 | return boost::none;
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107 |
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108 | for (int i = 0; i < strIndex; ++i)
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109 | {
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110 | UINT length = *p++;
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111 | p += length;
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112 | }
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113 |
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114 | UINT cch = *p++;
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115 | if (cch == 0)
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116 | {
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117 | return boost::none;
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118 | }
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119 | else
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120 | {
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121 | return std::wstring(p, cch);
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122 | }
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123 | }
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124 |
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125 | namespace {
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126 |
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127 | // http://msdn.microsoft.com/en-us/library/ms648010.aspx
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128 | struct ACCELTABLEENTRY
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129 | {
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130 | WORD fFlags;
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131 | WORD wAnsi;
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132 | WORD wId;
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133 | WORD padding;
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134 | };
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135 |
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136 | ACCEL AccelFromEntry(ACCELTABLEENTRY const& e)
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137 | {
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138 | ACCEL t = {static_cast<BYTE>(e.fFlags & 0x7f), e.wAnsi, e.wId};
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139 | return t;
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140 | }
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141 |
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142 | } // unnamed namespace
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143 |
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144 | HACCEL LoadAcceleratorsAlt(HINSTANCE hinst, USHORT id)
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145 | {
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146 | using namespace boost::adaptors;
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147 |
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148 | auto accel = GetResourceWithSize(hinst, id, RT_ACCELERATOR);
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149 | if (accel.first == nullptr)
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150 | {
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151 | return nullptr;
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152 | }
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153 |
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154 | auto pate = static_cast<ACCELTABLEENTRY const*>(accel.first);
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155 |
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156 | auto a = boost::copy_range<std::vector<ACCEL>>(
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157 | boost::make_iterator_range(pate, pate + accel.second / sizeof (ACCELTABLEENTRY))
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158 | | transformed(AccelFromEntry));
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159 |
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160 | if (a.size() > INT_MAX)
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161 | {
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162 | a.resize(INT_MAX);
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163 | }
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164 | return CreateAcceleratorTable(&a[0], static_cast<int>(a.size()));
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165 | }
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166 |
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167 | HMENU LoadMenuAlt(HINSTANCE hinst, USHORT id)
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168 | {
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169 | return LoadMenuIndirect(GetResource(hinst, id, RT_MENU));
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170 | }
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171 |
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172 | }}
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173 |
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