mirror of
https://github.com/reactos/reactos.git
synced 2024-08-19 01:48:11 +00:00
![Baruch Rutman](/assets/img/avatar_default.png)
Proposed changes: - Use the total extent (width) and font metrics (height) as values to put in the lpSize variable instead of calling ScriptString_pSize() in the LpkGetTextExtentExPoint() function. - Use GetTextExtentExPointWPri in more cases as another effort to get the data. - Trailing whitespace fixes.
510 lines
14 KiB
C
510 lines
14 KiB
C
/*
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* PROJECT: ReactOS LPK
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* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
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* PURPOSE: Language Pack DLL.
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* PROGRAMMERS: Magnus Olsen (greatlrd)
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* Baruch Rutman (peterooch at gmail dot com)
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*/
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#include "ros_lpk.h"
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WINE_DEFAULT_DEBUG_CHANNEL(bidi);
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LPK_LPEDITCONTROL_LIST LpkEditControl = {EditCreate, EditIchToXY, EditMouseToIch, EditCchInWidth,
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EditGetLineWidth, EditDrawText, EditHScroll, EditMoveSelection,
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EditVerifyText, EditNextWord, EditSetMenu, EditProcessMenu,
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EditCreateCaret, EditAdjustCaret};
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#define PREFIX 38
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#define ALPHA_PREFIX 30 /* Win16: Alphabet prefix */
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#define KANA_PREFIX 31 /* Win16: Katakana prefix */
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static int PSM_FindLastPrefix(LPCWSTR str, int count)
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{
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int i, prefix_count = 0, index = -1;
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for (i = 0; i < count - 1; i++)
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{
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if (str[i] == PREFIX && str[i + 1] != PREFIX)
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{
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index = i - prefix_count;
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prefix_count++;
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}
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else if (str[i] == PREFIX && str[i + 1] == PREFIX)
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{
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i++;
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}
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}
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return index;
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}
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static void PSM_PrepareToDraw(LPCWSTR str, INT count, LPWSTR new_str, LPINT new_count)
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{
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int len, i = 0, j = 0;
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while (i < count)
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{
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if (str[i] == PREFIX || (iswspace(str[i]) && str[i] != L' '))
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{
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if (i < count - 1 && str[i + 1] == PREFIX)
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new_str[j++] = str[i++];
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else
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i++;
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}
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else
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{
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new_str[j++] = str[i++];
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}
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}
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new_str[j] = L'\0';
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len = wcslen(new_str);
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*new_count = len;
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}
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/* Can be used with also LpkDrawTextEx() if it will be implemented */
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static void LPK_DrawUnderscore(HDC hdc, int x, int y, LPCWSTR str, int count, int offset)
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{
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SCRIPT_STRING_ANALYSIS ssa;
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DWORD dwSSAFlags = SSA_GLYPHS;
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int prefix_x;
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int prefix_end;
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int pos;
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SIZE size;
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HPEN hpen;
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HPEN oldPen;
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HRESULT hr = S_FALSE;
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if (offset == -1)
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return;
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if (ScriptIsComplex(str, count, SIC_COMPLEX) == S_OK)
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{
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if (GetLayout(hdc) & LAYOUT_RTL || GetTextAlign(hdc) & TA_RTLREADING)
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dwSSAFlags |= SSA_RTL;
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hr = ScriptStringAnalyse(hdc, str, count, (3 * count / 2 + 16),
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-1, dwSSAFlags, -1, NULL, NULL, NULL, NULL, NULL, &ssa);
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}
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if (hr == S_OK)
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{
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ScriptStringCPtoX(ssa, offset, FALSE, &pos);
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prefix_x = x + pos;
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ScriptStringCPtoX(ssa, offset, TRUE, &pos);
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prefix_end = x + pos;
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ScriptStringFree(&ssa);
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}
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else
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{
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GetTextExtentPointW(hdc, str, offset, &size);
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prefix_x = x + size.cx;
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GetTextExtentPointW(hdc, str, offset + 1, &size);
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prefix_end = x + size.cx - 1;
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}
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hpen = CreatePen(PS_SOLID, 1, GetTextColor(hdc));
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oldPen = SelectObject(hdc, hpen);
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MoveToEx(hdc, prefix_x, y, NULL);
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LineTo(hdc, prefix_end, y);
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SelectObject(hdc, oldPen);
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DeleteObject(hpen);
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}
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/* Code taken from the GetProcessDefaultLayout() function from Wine's user32
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* Wine version 3.17
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*
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* This function should be called from LpkInitialize(),
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* which is in turn called by GdiInitializeLanguagePack() (from gdi32).
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* TODO: Move call from LpkDllInitialize() to LpkInitialize() when latter
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* function is implemented.
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*/
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static void LPK_ApplyMirroring()
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{
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static const WCHAR translationW[] = { '\\','V','a','r','F','i','l','e','I','n','f','o',
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'\\','T','r','a','n','s','l','a','t','i','o','n', 0 };
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static const WCHAR filedescW[] = { '\\','S','t','r','i','n','g','F','i','l','e','I','n','f','o',
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'\\','%','0','4','x','%','0','4','x',
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'\\','F','i','l','e','D','e','s','c','r','i','p','t','i','o','n',0 };
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WCHAR *str, buffer[MAX_PATH];
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#ifdef __REACTOS__
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DWORD i, version_layout = 0;
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UINT len;
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#else
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DWORD i, len, version_layout = 0;
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#endif
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DWORD user_lang = GetUserDefaultLangID();
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DWORD *languages;
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void *data = NULL;
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GetModuleFileNameW( 0, buffer, MAX_PATH );
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if (!(len = GetFileVersionInfoSizeW( buffer, NULL ))) goto done;
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if (!(data = HeapAlloc( GetProcessHeap(), 0, len ))) goto done;
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if (!GetFileVersionInfoW( buffer, 0, len, data )) goto done;
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if (!VerQueryValueW( data, translationW, (void **)&languages, &len ) || !len) goto done;
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len /= sizeof(DWORD);
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for (i = 0; i < len; i++) if (LOWORD(languages[i]) == user_lang) break;
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if (i == len) /* try neutral language */
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for (i = 0; i < len; i++)
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if (LOWORD(languages[i]) == MAKELANGID( PRIMARYLANGID(user_lang), SUBLANG_NEUTRAL )) break;
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if (i == len) i = 0; /* default to the first one */
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sprintfW( buffer, filedescW, LOWORD(languages[i]), HIWORD(languages[i]) );
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if (!VerQueryValueW( data, buffer, (void **)&str, &len )) goto done;
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TRACE( "found description %s\n", debugstr_w( str ));
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if (str[0] == 0x200e && str[1] == 0x200e) version_layout = LAYOUT_RTL;
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done:
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HeapFree( GetProcessHeap(), 0, data );
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SetProcessDefaultLayout(version_layout);
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}
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BOOL
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WINAPI
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DllMain(
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HANDLE hDll,
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DWORD dwReason,
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LPVOID lpReserved)
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{
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return LpkDllInitialize(hDll,dwReason,lpReserved);
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}
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BOOL
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WINAPI
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LpkDllInitialize(
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HANDLE hDll,
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DWORD dwReason,
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LPVOID lpReserved)
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{
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switch(dwReason)
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{
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case DLL_PROCESS_ATTACH:
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DisableThreadLibraryCalls(hDll);
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/* Tell usp10 it is activated usp10 */
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//LpkPresent();
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LPK_ApplyMirroring();
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break;
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default:
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break;
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}
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return TRUE;
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}
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/*
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* @implemented
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*/
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BOOL
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WINAPI
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LpkExtTextOut(
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HDC hdc,
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int x,
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int y,
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UINT fuOptions,
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const RECT *lprc,
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LPCWSTR lpString,
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UINT uCount,
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const INT *lpDx,
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INT unknown)
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{
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LPWORD glyphs = NULL;
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LPWSTR reordered_str = NULL;
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INT cGlyphs;
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DWORD dwSICFlags = SIC_COMPLEX;
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BOOL bResult, bReorder;
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UNREFERENCED_PARAMETER(unknown);
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fuOptions |= ETO_IGNORELANGUAGE;
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/* Check text direction */
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if ((GetLayout(hdc) & LAYOUT_RTL) || (GetTextAlign(hdc) & TA_RTLREADING))
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fuOptions |= ETO_RTLREADING;
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/* If text direction is RTL change flag to account neutral characters */
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if (fuOptions & ETO_RTLREADING)
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dwSICFlags |= SIC_NEUTRAL;
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/* Check if the string requires complex script processing and not a "glyph indices" array */
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if (ScriptIsComplex(lpString, uCount, dwSICFlags) == S_OK && !(fuOptions & ETO_GLYPH_INDEX))
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{
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/* reordered_str is used as fallback in case the glyphs array fails to generate,
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BIDI_Reorder() doesn't attempt to write into reordered_str if memory allocation fails */
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reordered_str = HeapAlloc(GetProcessHeap(), 0, uCount * sizeof(WCHAR));
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bReorder = BIDI_Reorder(hdc, lpString, uCount, GCP_REORDER,
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(fuOptions & ETO_RTLREADING) ? WINE_GCPW_FORCE_RTL : WINE_GCPW_FORCE_LTR,
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reordered_str, uCount, NULL, &glyphs, &cGlyphs);
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/* Now display the reordered text if any of the arrays is valid and if BIDI_Reorder() succeeded */
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if ((glyphs || reordered_str) && bReorder)
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{
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if (glyphs)
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{
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fuOptions |= ETO_GLYPH_INDEX;
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uCount = cGlyphs;
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}
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bResult = ExtTextOutW(hdc, x, y, fuOptions, lprc,
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glyphs ? (LPWSTR)glyphs : reordered_str, uCount, lpDx);
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}
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else
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{
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WARN("BIDI_Reorder failed, falling back to original string.\n");
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bResult = ExtTextOutW(hdc, x, y, fuOptions, lprc, lpString, uCount, lpDx);
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}
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HeapFree(GetProcessHeap(), 0, glyphs);
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HeapFree(GetProcessHeap(), 0, reordered_str);
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return bResult;
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}
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return ExtTextOutW(hdc, x, y, fuOptions, lprc, lpString, uCount, lpDx);
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}
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/*
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* @implemented
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*/
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DWORD
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WINAPI
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LpkGetCharacterPlacement(
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HDC hdc,
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LPCWSTR lpString,
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INT uCount,
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INT nMaxExtent,
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LPGCP_RESULTSW lpResults,
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DWORD dwFlags,
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DWORD dwUnused)
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{
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DWORD ret = 0;
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HRESULT hr;
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SCRIPT_STRING_ANALYSIS ssa;
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LPWORD lpGlyphs = NULL;
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SIZE size;
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UINT nSet, i;
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INT cGlyphs;
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UNREFERENCED_PARAMETER(dwUnused);
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/* Sanity check (most likely a direct call) */
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if (!(dwFlags & GCP_REORDER))
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return GetCharacterPlacementW(hdc, lpString, uCount, nMaxExtent, lpResults, dwFlags);
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nSet = (UINT)uCount;
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if (nSet > lpResults->nGlyphs)
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nSet = lpResults->nGlyphs;
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BIDI_Reorder(hdc, lpString, uCount, dwFlags, WINE_GCPW_FORCE_LTR, lpResults->lpOutString,
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nSet, lpResults->lpOrder, &lpGlyphs, &cGlyphs);
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lpResults->nGlyphs = (UINT)cGlyphs;
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if (lpResults->lpGlyphs)
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{
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if (lpGlyphs)
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StringCchCopyW(lpResults->lpGlyphs, cGlyphs, lpGlyphs);
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else if (lpResults->lpOutString)
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GetGlyphIndicesW(hdc, lpResults->lpOutString, nSet, lpResults->lpGlyphs, 0);
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}
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if (lpResults->lpDx)
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{
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int c;
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/* If glyph shaping was requested */
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if (dwFlags & GCP_GLYPHSHAPE)
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{
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if (lpResults->lpGlyphs)
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{
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for (i = 0; i < lpResults->nGlyphs; i++)
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{
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if (GetCharWidthI(hdc, 0, 1, (WORD *)&lpResults->lpGlyphs[i], &c))
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lpResults->lpDx[i] = c;
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}
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}
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}
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else
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{
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for (i = 0; i < nSet; i++)
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{
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if (GetCharWidth32W(hdc, lpResults->lpOutString[i], lpResults->lpOutString[i], &c))
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lpResults->lpDx[i] = c;
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}
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}
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}
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if (lpResults->lpCaretPos)
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{
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int pos = 0;
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hr = ScriptStringAnalyse(hdc, lpString, nSet, (3 * nSet / 2 + 16), -1, SSA_GLYPHS, -1,
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NULL, NULL, NULL, NULL, NULL, &ssa);
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if (hr == S_OK)
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{
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for (i = 0; i < nSet; i++)
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{
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if (ScriptStringCPtoX(ssa, i, FALSE, &pos) == S_OK)
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lpResults->lpCaretPos[i] = pos;
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}
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ScriptStringFree(&ssa);
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}
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else
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{
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lpResults->lpCaretPos[0] = 0;
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for (i = 1; i < nSet; i++)
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{
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if (GetTextExtentPoint32W(hdc, &(lpString[i - 1]), 1, &size))
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lpResults->lpCaretPos[i] = (pos += size.cx);
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}
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}
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}
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if (GetTextExtentPoint32W(hdc, lpString, uCount, &size))
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ret = MAKELONG(size.cx, size.cy);
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HeapFree(GetProcessHeap(), 0, lpGlyphs);
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return ret;
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}
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/* Stripped down version of DrawText(), can only draw single line text and Prefix underscore
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* (only on the last found amperstand).
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* Only flags to be found to be of use in testing:
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*
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* DT_NOPREFIX - Draw the string as is without removal of the amperstands and without underscore
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* DT_HIDEPREFIX - Draw the string without underscore
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* DT_PREFIXONLY - Draw only the underscore
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*
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* Without any of these flags the behavior is the string being drawn without the amperstands and
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* with the underscore.
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* user32 has an equivalent function - UserLpkPSMTextOut().
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*
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* Note: lpString does not need to be null terminated.
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*/
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INT WINAPI LpkPSMTextOut(HDC hdc, int x, int y, LPCWSTR lpString, int cString, DWORD dwFlags)
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{
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SIZE size;
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TEXTMETRICW tm;
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int prefix_offset, len;
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LPWSTR display_str = NULL;
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if (!lpString || cString <= 0)
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return 0;
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if (dwFlags & DT_NOPREFIX)
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{
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LpkExtTextOut(hdc, x, y, 0, NULL, lpString, cString, NULL, 0);
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GetTextExtentPointW(hdc, lpString, cString, &size);
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return size.cx;
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}
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display_str = HeapAlloc(GetProcessHeap(), 0, (cString + 1) * sizeof(WCHAR));
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if (!display_str)
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return 0;
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PSM_PrepareToDraw(lpString, cString, display_str, &len);
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if (!(dwFlags & DT_PREFIXONLY))
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LpkExtTextOut(hdc, x, y, 0, NULL, display_str, len, NULL, 0);
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if (!(dwFlags & DT_HIDEPREFIX))
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{
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prefix_offset = PSM_FindLastPrefix(lpString, cString);
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GetTextMetricsW(hdc, &tm);
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LPK_DrawUnderscore(hdc, x, y + tm.tmAscent + 1, display_str, len, prefix_offset);
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}
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GetTextExtentPointW(hdc, display_str, len + 1, &size);
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HeapFree(GetProcessHeap(), 0, display_str);
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return size.cx;
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}
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/*
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* @implemented
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*/
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BOOL
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WINAPI
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LpkGetTextExtentExPoint(
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HDC hdc,
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LPCWSTR lpString,
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INT cString,
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INT nMaxExtent,
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LPINT lpnFit,
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LPINT lpnDx,
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LPSIZE lpSize,
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DWORD dwUnused,
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int unknown)
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{
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SCRIPT_STRING_ANALYSIS ssa;
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HRESULT hr;
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INT i, extent, *Dx;
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TEXTMETRICW tm;
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UNREFERENCED_PARAMETER(dwUnused);
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UNREFERENCED_PARAMETER(unknown);
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if (cString < 0 || !lpSize)
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return FALSE;
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if (cString == 0 || !lpString)
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{
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lpSize->cx = 0;
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lpSize->cy = 0;
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return TRUE;
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}
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/* Check if any processing is required */
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if (ScriptIsComplex(lpString, cString, SIC_COMPLEX) != S_OK)
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goto fallback;
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hr = ScriptStringAnalyse(hdc, lpString, cString, 3 * cString / 2 + 16, -1,
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SSA_GLYPHS, 0, NULL, NULL, NULL, NULL, NULL, &ssa);
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if (hr != S_OK)
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goto fallback;
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/* Use logic from TextIntGetTextExtentPoint() */
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Dx = HeapAlloc(GetProcessHeap(), 0, cString * sizeof(INT));
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if (!Dx)
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{
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ScriptStringFree(&ssa);
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goto fallback;
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}
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if (lpnFit)
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*lpnFit = 0;
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ScriptStringGetLogicalWidths(ssa, Dx);
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for (i = 0, extent = 0; i < cString; i++)
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{
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extent += Dx[i];
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if (extent <= nMaxExtent && lpnFit)
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*lpnFit = i + 1;
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if (lpnDx)
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lpnDx[i] = extent;
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}
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HeapFree(GetProcessHeap(), 0, Dx);
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ScriptStringFree(&ssa);
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if (!GetTextMetricsW(hdc, &tm))
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return GetTextExtentExPointWPri(hdc, lpString, cString, 0, NULL, NULL, lpSize);
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lpSize->cx = extent;
|
|
lpSize->cy = tm.tmHeight;
|
|
|
|
return TRUE;
|
|
|
|
fallback:
|
|
return GetTextExtentExPointWPri(hdc, lpString, cString, nMaxExtent, lpnFit, lpnDx, lpSize);
|
|
}
|