Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11clipboard.c @ 5168:2b1989f59674
Extended SDL_SetWindowData() to allow arbitrary named values.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 03 Feb 2011 11:16:57 -0800 |
| parents | f18bc9935507 |
| children | 58265e606e4e |
| rev | line source |
|---|---|
| 4508 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997-2010 Sam Lantinga | |
| 4 | |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Lesser General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2.1 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Lesser General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Lesser General Public | |
| 16 License along with this library; if not, write to the Free Software | |
| 17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 18 | |
| 19 Sam Lantinga | |
| 20 slouken@libsdl.org | |
| 21 */ | |
| 22 #include "SDL_config.h" | |
| 23 | |
| 24 #include <limits.h> /* For INT_MAX */ | |
| 25 | |
| 26 #include "SDL_events.h" | |
| 27 #include "SDL_x11video.h" | |
| 28 | |
| 29 | |
|
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Made it possible to switch the text format in one place
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30 /* If you don't support UTF-8, you might use XA_STRING here */ |
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Use a better switch for the clipboard property format
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31 #ifdef X_HAVE_UTF8_STRING |
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32 #define TEXT_FORMAT XInternAtom(display, "UTF8_STRING", False) |
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Made it possible to switch the text format in one place
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parents:
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33 #else |
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8e91c3947210
Made it possible to switch the text format in one place
Sam Lantinga <slouken@libsdl.org>
parents:
4508
diff
changeset
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34 #define TEXT_FORMAT XA_STRING |
|
8e91c3947210
Made it possible to switch the text format in one place
Sam Lantinga <slouken@libsdl.org>
parents:
4508
diff
changeset
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35 #endif |
|
8e91c3947210
Made it possible to switch the text format in one place
Sam Lantinga <slouken@libsdl.org>
parents:
4508
diff
changeset
|
36 |
| 4508 | 37 /* Get any application owned window handle for clipboard association */ |
| 38 static Window | |
| 39 GetWindow(_THIS) | |
| 40 { | |
| 41 SDL_VideoDisplay *display; | |
| 42 SDL_Window *window; | |
| 43 | |
| 44 display = _this->displays; | |
| 45 if (display) { | |
| 46 window = display->windows; | |
| 47 if (window) { | |
| 48 return ((SDL_WindowData *) window->driverdata)->xwindow; | |
| 49 } | |
| 50 } | |
| 51 return None; | |
| 52 } | |
| 53 | |
| 54 int | |
| 55 X11_SetClipboardText(_THIS, const char *text) | |
| 56 { | |
| 57 Display *display = ((SDL_VideoData *) _this->driverdata)->display; | |
| 58 Atom format; | |
| 59 Window window; | |
| 60 | |
| 61 /* Get the SDL window that will own the selection */ | |
| 62 window = GetWindow(_this); | |
| 63 if (window == None) { | |
| 64 SDL_SetError("Couldn't find a window to own the selection"); | |
| 65 return -1; | |
| 66 } | |
| 67 | |
|
4509
8e91c3947210
Made it possible to switch the text format in one place
Sam Lantinga <slouken@libsdl.org>
parents:
4508
diff
changeset
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68 /* Save the selection on the root window */ |
|
8e91c3947210
Made it possible to switch the text format in one place
Sam Lantinga <slouken@libsdl.org>
parents:
4508
diff
changeset
|
69 format = TEXT_FORMAT; |
| 4508 | 70 XChangeProperty(display, DefaultRootWindow(display), |
| 71 XA_CUT_BUFFER0, format, 8, PropModeReplace, | |
| 72 (const unsigned char *)text, SDL_strlen(text)); | |
| 73 | |
| 74 if (XGetSelectionOwner(display, XA_PRIMARY) != window) { | |
| 75 XSetSelectionOwner(display, XA_PRIMARY, window, CurrentTime); | |
| 76 } | |
| 77 return 0; | |
| 78 } | |
| 79 | |
| 80 char * | |
| 81 X11_GetClipboardText(_THIS) | |
| 82 { | |
| 83 SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata; | |
| 84 Display *display = videodata->display; | |
| 85 Atom format; | |
| 86 Window window; | |
| 87 Window owner; | |
| 88 Atom selection; | |
| 89 Atom seln_type; | |
| 90 int seln_format; | |
| 91 unsigned long nbytes; | |
| 92 unsigned long overflow; | |
| 93 unsigned char *src; | |
| 94 char *text; | |
| 95 | |
| 96 text = NULL; | |
| 97 | |
|
4509
8e91c3947210
Made it possible to switch the text format in one place
Sam Lantinga <slouken@libsdl.org>
parents:
4508
diff
changeset
|
98 /* Get the window that holds the selection */ |
| 4508 | 99 window = GetWindow(_this); |
|
4509
8e91c3947210
Made it possible to switch the text format in one place
Sam Lantinga <slouken@libsdl.org>
parents:
4508
diff
changeset
|
100 format = TEXT_FORMAT; |
| 4508 | 101 owner = XGetSelectionOwner(display, XA_PRIMARY); |
| 102 if ((owner == None) || (owner == window)) { | |
| 103 owner = DefaultRootWindow(display); | |
| 104 selection = XA_CUT_BUFFER0; | |
| 105 } else { | |
| 106 /* Request that the selection owner copy the data to our window */ | |
| 107 owner = window; | |
| 108 selection = XInternAtom(display, "SDL_SELECTION", False); | |
| 109 XConvertSelection(display, XA_PRIMARY, format, selection, owner, | |
| 110 CurrentTime); | |
| 111 | |
| 112 /* FIXME: Should we have a timeout here? */ | |
| 113 videodata->selection_waiting = SDL_TRUE; | |
| 114 while (videodata->selection_waiting) { | |
| 115 SDL_PumpEvents(); | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 if (XGetWindowProperty(display, owner, selection, 0, INT_MAX/4, False, | |
| 120 format, &seln_type, &seln_format, &nbytes, &overflow, &src) | |
| 121 == Success) { | |
| 122 if (seln_type == format) { | |
| 123 text = (char *)SDL_malloc(nbytes+1); | |
| 124 if (text) { | |
| 125 SDL_memcpy(text, src, nbytes); | |
| 126 text[nbytes] = '\0'; | |
| 127 } | |
| 128 } | |
| 129 XFree(src); | |
| 130 } | |
| 131 | |
| 132 if (!text) { | |
| 133 text = SDL_strdup(""); | |
| 134 } | |
| 135 return text; | |
| 136 } | |
| 137 | |
| 138 SDL_bool | |
| 139 X11_HasClipboardText(_THIS) | |
| 140 { | |
| 141 /* Not an easy way to tell with X11, as far as I know... */ | |
| 142 char *text; | |
| 143 SDL_bool retval; | |
| 144 | |
| 145 text = X11_GetClipboardText(_this); | |
| 146 if (*text) { | |
| 147 retval = SDL_TRUE; | |
| 148 } else { | |
| 149 retval = SDL_FALSE; | |
| 150 } | |
| 151 SDL_free(text); | |
| 152 | |
| 153 return retval; | |
| 154 } | |
| 155 | |
| 156 /* vi: set ts=4 sw=4 expandtab: */ |