mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 21:34:08 -07:00
1861448e6c
also rename wchar -> utf8 to avoid conflict with <wchar.h> (requires rebuild of workspace) (unfortunately copying history fails to "502 bad gateway"; had to delete old + add new independently) This was SVN commit r7340.
114 lines
3.5 KiB
C++
114 lines
3.5 KiB
C++
/* Copyright (c) 2010 Wildfire Games
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "precompiled.h"
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#include "lib/sysdep/clipboard.h"
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#include "lib/sysdep/os/win/win.h"
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#include "lib/sysdep/os/win/wutil.h"
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// caller is responsible for freeing *hMem.
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static LibError SetClipboardText(const wchar_t* text, HGLOBAL* hMem)
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{
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const size_t numChars = wcslen(text);
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*hMem = GlobalAlloc(GMEM_MOVEABLE, (numChars+1) * sizeof(wchar_t));
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if(!*hMem)
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WARN_RETURN(ERR::NO_MEM);
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wchar_t* lockedText = (wchar_t*)GlobalLock(*hMem);
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if(!lockedText)
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WARN_RETURN(ERR::NO_MEM);
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wcscpy_s(lockedText, numChars+1, text);
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GlobalUnlock(*hMem);
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HANDLE hData = SetClipboardData(CF_UNICODETEXT, *hMem);
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if(!hData) // failed
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WARN_RETURN(ERR::FAIL);
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return INFO::OK;
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}
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// "copy" text into the clipboard. replaces previous contents.
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LibError sys_clipboard_set(const wchar_t* text)
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{
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// note: MSDN claims that the window handle must not be 0;
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// that does actually work on WinXP, but we'll play it safe.
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if(!OpenClipboard(wutil_AppWindow()))
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WARN_RETURN(ERR::FAIL);
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EmptyClipboard();
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HGLOBAL hMem;
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LibError ret = SetClipboardText(text, &hMem);
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CloseClipboard();
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// note: MSDN's SetClipboardData documentation says hMem must not be
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// freed until after CloseClipboard. however, GlobalFree still fails
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// after the successful completion of both. we'll leave it in to avoid
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// memory leaks, but ignore its return value.
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(void)GlobalFree(hMem);
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return ret;
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}
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static wchar_t* CopyClipboardContents()
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{
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// Windows NT/2000+ auto convert UNICODETEXT <-> TEXT
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HGLOBAL hMem = GetClipboardData(CF_UNICODETEXT);
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if(!hMem)
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return 0;
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const wchar_t* lockedText = (const wchar_t*)GlobalLock(hMem);
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if(!lockedText)
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return 0;
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const size_t numChars = GlobalSize(hMem)/sizeof(wchar_t) - 1;
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wchar_t* text = new wchar_t[numChars+1];
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wcscpy_s(text, numChars+1, lockedText);
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GlobalUnlock(hMem);
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return text;
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}
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// allow "pasting" from clipboard. returns the current contents if they
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// can be represented as text, otherwise 0.
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// when it is no longer needed, the returned pointer must be freed via
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// sys_clipboard_free. (NB: not necessary if zero, but doesn't hurt)
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wchar_t* sys_clipboard_get()
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{
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if(!OpenClipboard(wutil_AppWindow()))
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return 0;
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wchar_t* const ret = CopyClipboardContents();
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CloseClipboard();
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return ret;
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}
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// frees memory used by <copy>, which must have been returned by
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// sys_clipboard_get. see note above.
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LibError sys_clipboard_free(wchar_t* text)
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{
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delete[] text;
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return INFO::OK;
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}
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