Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11clipboard.c @ 4516:f18bc9935507
Use a better switch for the clipboard property format
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 13 Jul 2010 22:39:46 -0700 |
parents | 8e91c3947210 |
children | 58265e606e4e |
rev | line source |
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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 | |
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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30 /* If you don't support UTF-8, you might use XA_STRING here */ |
4516
f18bc9935507
Use a better switch for the clipboard property format
Sam Lantinga <slouken@libsdl.org>
parents:
4509
diff
changeset
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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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33 #else |
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34 #define TEXT_FORMAT XA_STRING |
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35 #endif |
8e91c3947210
Made it possible to switch the text format in one place
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parents:
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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
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parents:
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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
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parents:
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diff
changeset
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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
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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: */ |