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annotate src/video/windows/SDL_windowsclipboard.c @ 5267:b530ef003506

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Happy 2011! :)
author Sam Lantinga <slouken@libsdl.org>
date Fri, 11 Feb 2011 22:37:15 -0800
parents f908e06b3c96
children
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2011 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_windowsvideo.h"
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25 #include "SDL_windowswindow.h"
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26 #include "../../events/SDL_clipboardevents_c.h"
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27
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28
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29 #ifdef UNICODE
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30 #define TEXT_FORMAT CF_UNICODETEXT
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31 #else
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32 #define TEXT_FORMAT CF_TEXT
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33 #endif
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34
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35
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36 /* Get any application owned window handle for clipboard association */
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37 static HWND
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38 GetWindowHandle(_THIS)
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39 {
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40 SDL_Window *window;
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41
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42 window = _this->windows;
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43 if (window) {
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44 return ((SDL_WindowData *) window->driverdata)->hwnd;
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45 }
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46 return NULL;
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47 }
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48
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49 int
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50 WIN_SetClipboardText(_THIS, const char *text)
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51 {
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52 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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53 int result = 0;
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54
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55 if (OpenClipboard(GetWindowHandle(_this))) {
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56 HANDLE hMem;
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57 LPTSTR tstr;
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58 SIZE_T i, size;
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59
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60 /* Convert the text from UTF-8 to Windows Unicode */
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61 tstr = WIN_UTF8ToString(text);
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62 if (!tstr) {
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63 return -1;
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64 }
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65
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66 /* Find out the size of the data */
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67 for (size = 0, i = 0; tstr[i]; ++i, ++size) {
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68 if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) {
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69 /* We're going to insert a carriage return */
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70 ++size;
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71 }
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72 }
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73 size = (size+1)*sizeof(*tstr);
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74
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75 /* Save the data to the clipboard */
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76 hMem = GlobalAlloc(GMEM_MOVEABLE, size);
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77 if (hMem) {
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78 LPTSTR dst = (LPTSTR)GlobalLock(hMem);
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79 /* Copy the text over, adding carriage returns as necessary */
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80 for (i = 0; tstr[i]; ++i) {
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81 if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) {
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82 *dst++ = '\r';
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83 }
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84 *dst++ = tstr[i];
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85 }
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86 *dst = 0;
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87 GlobalUnlock(hMem);
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88
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89 EmptyClipboard();
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90 if (!SetClipboardData(TEXT_FORMAT, hMem)) {
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91 WIN_SetError("Couldn't set clipboard data");
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92 result = -1;
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93 }
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94 #ifdef _WIN32_WCE
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95 data->clipboard_count = 0;
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96 #else
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97 data->clipboard_count = GetClipboardSequenceNumber();
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98 #endif
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99 }
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100 SDL_free(tstr);
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101
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102 CloseClipboard();
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103 } else {
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104 WIN_SetError("Couldn't open clipboard");
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105 result = -1;
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106 }
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107 return result;
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108 }
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109
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110 char *
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111 WIN_GetClipboardText(_THIS)
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112 {
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113 char *text;
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114
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115 text = NULL;
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116 if (IsClipboardFormatAvailable(TEXT_FORMAT) &&
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117 OpenClipboard(GetWindowHandle(_this))) {
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118 HANDLE hMem;
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119 LPTSTR tstr;
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120
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121 hMem = GetClipboardData(TEXT_FORMAT);
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122 if (hMem) {
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123 tstr = (LPTSTR)GlobalLock(hMem);
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124 text = WIN_StringToUTF8(tstr);
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125 GlobalUnlock(hMem);
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126 } else {
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127 WIN_SetError("Couldn't get clipboard data");
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128 }
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129 CloseClipboard();
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130 }
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131 if (!text) {
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132 text = SDL_strdup("");
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133 }
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134 return text;
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135 }
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136
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137 SDL_bool
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138 WIN_HasClipboardText(_THIS)
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139 {
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140 if (IsClipboardFormatAvailable(TEXT_FORMAT)) {
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141 return SDL_TRUE;
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142 } else {
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143 return SDL_FALSE;
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144 }
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145 }
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146
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147 void
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148 WIN_CheckClipboardUpdate(struct SDL_VideoData * data)
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149 {
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150 DWORD count;
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151
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152 #ifdef _WIN32_WCE
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153 count = 0;
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154 #else
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155 count = GetClipboardSequenceNumber();
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156 #endif
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157 if (count != data->clipboard_count) {
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158 if (data->clipboard_count) {
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159 SDL_SendClipboardUpdate();
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
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160 }
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
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161 data->clipboard_count = count;
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
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162 }
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
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163 }
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
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164
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eff4e88cc1e8 Added Windows clipboard support
Sam Lantinga <slouken@libsdl.org>
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165 /* vi: set ts=4 sw=4 expandtab: */