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comparison src/video/win32/SDL_win32clipboard.c @ 4755:436183eb30c8

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Merge with main repo (mainly for non-printable character fix)
author dewyatt
date Sun, 18 Jul 2010 13:48:23 -0400
parents 9faebccfefb3
children e1664f94f026
comparison
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4754:2072fed2f583 4755:436183eb30c8
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 "SDL_win32video.h"
25 #include "SDL_win32window.h"
26 #include "../../events/SDL_clipboardevents_c.h"
27
28
29 #ifdef UNICODE
30 #define TEXT_FORMAT CF_UNICODETEXT
31 #else
32 #define TEXT_FORMAT CF_TEXT
33 #endif
34
35
36 /* Get any application owned window handle for clipboard association */
37 static HWND
38 GetWindowHandle(_THIS)
39 {
40 SDL_VideoDisplay *display;
41 SDL_Window *window;
42
43 display = _this->displays;
44 if (display) {
45 window = display->windows;
46 if (window) {
47 return ((SDL_WindowData *) window->driverdata)->hwnd;
48 }
49 }
50 return NULL;
51 }
52
53 int
54 WIN_SetClipboardText(_THIS, const char *text)
55 {
56 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
57 int result = 0;
58
59 if (OpenClipboard(GetWindowHandle(_this))) {
60 HANDLE hMem;
61 LPTSTR tstr;
62 SIZE_T i, size;
63
64 /* Convert the text from UTF-8 to Windows Unicode */
65 tstr = WIN_UTF8ToString(text);
66 if (!tstr) {
67 return -1;
68 }
69
70 /* Find out the size of the data */
71 for (size = 0, i = 0; tstr[i]; ++i, ++size) {
72 if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) {
73 /* We're going to insert a carriage return */
74 ++size;
75 }
76 }
77 size = (size+1)*sizeof(*tstr);
78
79 /* Save the data to the clipboard */
80 hMem = GlobalAlloc(GMEM_MOVEABLE, size);
81 if (hMem) {
82 LPTSTR dst = (LPTSTR)GlobalLock(hMem);
83 /* Copy the text over, adding carriage returns as necessary */
84 for (i = 0; tstr[i]; ++i) {
85 if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) {
86 *dst++ = '\r';
87 }
88 *dst++ = tstr[i];
89 }
90 *dst = 0;
91 GlobalUnlock(hMem);
92
93 EmptyClipboard();
94 if (!SetClipboardData(TEXT_FORMAT, hMem)) {
95 WIN_SetError("Couldn't set clipboard data");
96 result = -1;
97 }
98 data->clipboard_count = GetClipboardSequenceNumber();
99 }
100 SDL_free(tstr);
101
102 CloseClipboard();
103 } else {
104 WIN_SetError("Couldn't open clipboard");
105 result = -1;
106 }
107 return result;
108 }
109
110 char *
111 WIN_GetClipboardText(_THIS)
112 {
113 char *text;
114
115 text = NULL;
116 if (IsClipboardFormatAvailable(TEXT_FORMAT) &&
117 OpenClipboard(GetWindowHandle(_this))) {
118 HANDLE hMem;
119 LPTSTR tstr;
120
121 hMem = GetClipboardData(TEXT_FORMAT);
122 if (hMem) {
123 tstr = (LPTSTR)GlobalLock(hMem);
124 text = WIN_StringToUTF8(tstr);
125 GlobalUnlock(hMem);
126 } else {
127 WIN_SetError("Couldn't get clipboard data");
128 }
129 CloseClipboard();
130 }
131 if (!text) {
132 text = SDL_strdup("");
133 }
134 return text;
135 }
136
137 SDL_bool
138 WIN_HasClipboardText(_THIS)
139 {
140 if (IsClipboardFormatAvailable(TEXT_FORMAT)) {
141 return SDL_TRUE;
142 } else {
143 return SDL_FALSE;
144 }
145 }
146
147 void
148 WIN_CheckClipboardUpdate(struct SDL_VideoData * data)
149 {
150 DWORD count;
151
152 count = GetClipboardSequenceNumber();
153 if (count != data->clipboard_count) {
154 if (data->clipboard_count) {
155 SDL_SendClipboardUpdate();
156 }
157 data->clipboard_count = count;
158 }
159 }
160
161 /* vi: set ts=4 sw=4 expandtab: */