diff options
Diffstat (limited to 'source/3rd-party/SDL2/src/video/windows/SDL_windowsclipboard.c')
| -rw-r--r-- | source/3rd-party/SDL2/src/video/windows/SDL_windowsclipboard.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/video/windows/SDL_windowsclipboard.c b/source/3rd-party/SDL2/src/video/windows/SDL_windowsclipboard.c new file mode 100644 index 0000000..4e61d7a --- /dev/null +++ b/source/3rd-party/SDL2/src/video/windows/SDL_windowsclipboard.c @@ -0,0 +1,160 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ +#include "../../SDL_internal.h" + +#if SDL_VIDEO_DRIVER_WINDOWS + +#include "SDL_windowsvideo.h" +#include "SDL_windowswindow.h" +#include "../../events/SDL_clipboardevents_c.h" + + +#ifdef UNICODE +#define TEXT_FORMAT CF_UNICODETEXT +#else +#define TEXT_FORMAT CF_TEXT +#endif + + +/* Get any application owned window handle for clipboard association */ +static HWND +GetWindowHandle(_THIS) +{ + SDL_Window *window; + + window = _this->windows; + if (window) { + return ((SDL_WindowData *) window->driverdata)->hwnd; + } + return NULL; +} + +int +WIN_SetClipboardText(_THIS, const char *text) +{ + SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; + int result = 0; + + if (OpenClipboard(GetWindowHandle(_this))) { + HANDLE hMem; + LPTSTR tstr; + SIZE_T i, size; + + /* Convert the text from UTF-8 to Windows Unicode */ + tstr = WIN_UTF8ToString(text); + if (!tstr) { + return -1; + } + + /* Find out the size of the data */ + for (size = 0, i = 0; tstr[i]; ++i, ++size) { + if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) { + /* We're going to insert a carriage return */ + ++size; + } + } + size = (size+1)*sizeof(*tstr); + + /* Save the data to the clipboard */ + hMem = GlobalAlloc(GMEM_MOVEABLE, size); + if (hMem) { + LPTSTR dst = (LPTSTR)GlobalLock(hMem); + if (dst) { + /* Copy the text over, adding carriage returns as necessary */ + for (i = 0; tstr[i]; ++i) { + if (tstr[i] == '\n' && (i == 0 || tstr[i-1] != '\r')) { + *dst++ = '\r'; + } + *dst++ = tstr[i]; + } + *dst = 0; + GlobalUnlock(hMem); + } + + EmptyClipboard(); + if (!SetClipboardData(TEXT_FORMAT, hMem)) { + result = WIN_SetError("Couldn't set clipboard data"); + } + data->clipboard_count = GetClipboardSequenceNumber(); + } + SDL_free(tstr); + + CloseClipboard(); + } else { + result = WIN_SetError("Couldn't open clipboard"); + } + return result; +} + +char * +WIN_GetClipboardText(_THIS) +{ + char *text; + + text = NULL; + if (IsClipboardFormatAvailable(TEXT_FORMAT) && + OpenClipboard(GetWindowHandle(_this))) { + HANDLE hMem; + LPTSTR tstr; + + hMem = GetClipboardData(TEXT_FORMAT); + if (hMem) { + tstr = (LPTSTR)GlobalLock(hMem); + text = WIN_StringToUTF8(tstr); + GlobalUnlock(hMem); + } else { + WIN_SetError("Couldn't get clipboard data"); + } + CloseClipboard(); + } + if (!text) { + text = SDL_strdup(""); + } + return text; +} + +SDL_bool +WIN_HasClipboardText(_THIS) +{ + SDL_bool result = SDL_FALSE; + char *text = WIN_GetClipboardText(_this); + if (text) { + result = text[0] != '\0' ? SDL_TRUE : SDL_FALSE; + SDL_free(text); + } + return result; +} + +void +WIN_CheckClipboardUpdate(struct SDL_VideoData * data) +{ + const DWORD count = GetClipboardSequenceNumber(); + if (count != data->clipboard_count) { + if (data->clipboard_count) { + SDL_SendClipboardUpdate(); + } + data->clipboard_count = count; + } +} + +#endif /* SDL_VIDEO_DRIVER_WINDOWS */ + +/* vi: set ts=4 sw=4 expandtab: */ |