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annotate src/video/windows/SDL_windowsclipboard.c @ 5246:189b1bdb7baf

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Surfaces aren't in hardware memory anymore!
author Sam Lantinga <slouken@libsdl.org>
date Thu, 10 Feb 2011 05:10:05 -0800
parents e8916fe9cfc8
children f908e06b3c96
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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_VideoDisplay *display;
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41 SDL_Window *window;
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42
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43 display = _this->displays;
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44 if (display) {
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45 window = display->windows;
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46 if (window) {
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47 return ((SDL_WindowData *) window->driverdata)->hwnd;
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48 }
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49 }
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50 return NULL;
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51 }
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52
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53 int
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54 WIN_SetClipboardText(_THIS, const char *text)
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55 {
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56 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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57 int result = 0;
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58
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59 if (OpenClipboard(GetWindowHandle(_this))) {
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60 HANDLE hMem;
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61 LPTSTR tstr;
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62 SIZE_T i, size;
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63
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64 /* Convert the text from UTF-8 to Windows Unicode */
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65 tstr = WIN_UTF8ToString(text);
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66 if (!tstr) {
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67 return -1;
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68 }
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69
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70 /* Find out the size of the data */
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71 for (size = 0, i = 0; tstr[i]; ++i, ++size) {
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72 if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) {
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73 /* We're going to insert a carriage return */
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74 ++size;
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75 }
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76 }
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77 size = (size+1)*sizeof(*tstr);
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78
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79 /* Save the data to the clipboard */
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80 hMem = GlobalAlloc(GMEM_MOVEABLE, size);
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81 if (hMem) {
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82 LPTSTR dst = (LPTSTR)GlobalLock(hMem);
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83 /* Copy the text over, adding carriage returns as necessary */
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84 for (i = 0; tstr[i]; ++i) {
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85 if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) {
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86 *dst++ = '\r';
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87 }
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88 *dst++ = tstr[i];
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89 }
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90 *dst = 0;
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91 GlobalUnlock(hMem);
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92
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93 EmptyClipboard();
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94 if (!SetClipboardData(TEXT_FORMAT, hMem)) {
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95 WIN_SetError("Couldn't set clipboard data");
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96 result = -1;
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97 }
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98 #ifdef _WIN32_WCE
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99 data->clipboard_count = 0;
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100 #else
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101 data->clipboard_count = GetClipboardSequenceNumber();
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102 #endif
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103 }
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104 SDL_free(tstr);
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105
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106 CloseClipboard();
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107 } else {
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108 WIN_SetError("Couldn't open clipboard");
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109 result = -1;
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110 }
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111 return result;
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112 }
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113
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114 char *
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115 WIN_GetClipboardText(_THIS)
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116 {
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117 char *text;
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118
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119 text = NULL;
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120 if (IsClipboardFormatAvailable(TEXT_FORMAT) &&
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121 OpenClipboard(GetWindowHandle(_this))) {
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122 HANDLE hMem;
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123 LPTSTR tstr;
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124
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125 hMem = GetClipboardData(TEXT_FORMAT);
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126 if (hMem) {
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127 tstr = (LPTSTR)GlobalLock(hMem);
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128 text = WIN_StringToUTF8(tstr);
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129 GlobalUnlock(hMem);
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130 } else {
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131 WIN_SetError("Couldn't get clipboard data");
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132 }
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133 CloseClipboard();
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134 }
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135 if (!text) {
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136 text = SDL_strdup("");
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137 }
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138 return text;
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139 }
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140
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141 SDL_bool
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142 WIN_HasClipboardText(_THIS)
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143 {
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144 if (IsClipboardFormatAvailable(TEXT_FORMAT)) {
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145 return SDL_TRUE;
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146 } else {
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147 return SDL_FALSE;
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148 }
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149 }
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150
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151 void
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152 WIN_CheckClipboardUpdate(struct SDL_VideoData * data)
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153 {
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154 DWORD count;
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155
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156 #ifdef _WIN32_WCE
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157 count = 0;
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158 #else
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159 count = GetClipboardSequenceNumber();
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160 #endif
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9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
parents: 4500
diff changeset
161 if (count != data->clipboard_count) {
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
parents: 4500
diff changeset
162 if (data->clipboard_count) {
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
parents: 4500
diff changeset
163 SDL_SendClipboardUpdate();
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
parents: 4500
diff changeset
164 }
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
parents: 4500
diff changeset
165 data->clipboard_count = count;
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
parents: 4500
diff changeset
166 }
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
parents: 4500
diff changeset
167 }
9faebccfefb3 Amazingly the Windows code is almost identical to the Mac OS X code. :)
Sam Lantinga <slouken@libsdl.org>
parents: 4500
diff changeset
168
4500
eff4e88cc1e8 Added Windows clipboard support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169 /* vi: set ts=4 sw=4 expandtab: */