https://git.reactos.org/?p=reactos.git;a=commitdiff;h=22064d7787514c72ab5d3db5da4d0929cab73b15
commit 22064d7787514c72ab5d3db5da4d0929cab73b15 Author: Baruch Rutman <[email protected]> AuthorDate: Fri Jun 14 01:43:44 2019 +0300 Commit: Hermès Bélusca-Maïto <[email protected]> CommitDate: Sat Jun 15 17:37:51 2019 +0200 [LPK] Fix for CORE-16115. (#1654) 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. --- dll/win32/lpk/lpk.c | 117 +++++++++++++++++++++++++--------------------------- 1 file changed, 57 insertions(+), 60 deletions(-) diff --git a/dll/win32/lpk/lpk.c b/dll/win32/lpk/lpk.c index f3ecaf9499b..b4291448bfe 100644 --- a/dll/win32/lpk/lpk.c +++ b/dll/win32/lpk/lpk.c @@ -57,12 +57,12 @@ static void PSM_PrepareToDraw(LPCWSTR str, INT count, LPWSTR new_str, LPINT new_ } } - new_str[j] = L'\0'; + new_str[j] = L'\0'; len = wcslen(new_str); *new_count = len; } -/* Can be used with also LpkDrawTextEx if it will be implemented */ +/* Can be used with also LpkDrawTextEx() if it will be implemented */ static void LPK_DrawUnderscore(HDC hdc, int x, int y, LPCWSTR str, int count, int offset) { SCRIPT_STRING_ANALYSIS ssa; @@ -82,7 +82,7 @@ static void LPK_DrawUnderscore(HDC hdc, int x, int y, LPCWSTR str, int count, in { if (GetLayout(hdc) & LAYOUT_RTL || GetTextAlign(hdc) & TA_RTLREADING) dwSSAFlags |= SSA_RTL; - + hr = ScriptStringAnalyse(hdc, str, count, (3 * count / 2 + 16), -1, dwSSAFlags, -1, NULL, NULL, NULL, NULL, NULL, &ssa); } @@ -110,16 +110,16 @@ static void LPK_DrawUnderscore(HDC hdc, int x, int y, LPCWSTR str, int count, in DeleteObject(hpen); } -/* Code taken from the GetProcessDefaultLayout function from Wine's user32 - * Wine version 3.17 - * - * This function should be called from LpkInitialize, - * which is in turn called by GdiInitializeLanguagePack (from gdi32). - * TODO: Move call from LpkDllInitialize to LpkInitialize when latter +/* Code taken from the GetProcessDefaultLayout() function from Wine's user32 + * Wine version 3.17 + * + * This function should be called from LpkInitialize(), + * which is in turn called by GdiInitializeLanguagePack() (from gdi32). + * TODO: Move call from LpkDllInitialize() to LpkInitialize() when latter * function is implemented. */ static void LPK_ApplyMirroring() -{ +{ static const WCHAR translationW[] = { '\\','V','a','r','F','i','l','e','I','n','f','o', '\\','T','r','a','n','s','l','a','t','i','o','n', 0 }; static const WCHAR filedescW[] = { '\\','S','t','r','i','n','g','F','i','l','e','I','n','f','o', @@ -195,7 +195,7 @@ LpkDllInitialize( /* - * @implemented + * @implemented */ BOOL WINAPI @@ -232,15 +232,15 @@ LpkExtTextOut( if (ScriptIsComplex(lpString, uCount, dwSICFlags) == S_OK && !(fuOptions & ETO_GLYPH_INDEX)) { /* reordered_str is used as fallback in case the glyphs array fails to generate, - BIDI_Reorder doesn't attempt to write into reordered_str if memory allocation fails */ + BIDI_Reorder() doesn't attempt to write into reordered_str if memory allocation fails */ reordered_str = HeapAlloc(GetProcessHeap(), 0, uCount * sizeof(WCHAR)); bReorder = BIDI_Reorder(hdc, lpString, uCount, GCP_REORDER, (fuOptions & ETO_RTLREADING) ? WINE_GCPW_FORCE_RTL : WINE_GCPW_FORCE_LTR, reordered_str, uCount, NULL, &glyphs, &cGlyphs); - /* Now display the reordered text if any of the arrays is valid and if BIDI_Reorder succeeded */ - if ((glyphs || reordered_str) && bReorder) + /* Now display the reordered text if any of the arrays is valid and if BIDI_Reorder() succeeded */ + if ((glyphs || reordered_str) && bReorder) { if (glyphs) { @@ -372,19 +372,19 @@ LpkGetCharacterPlacement( return ret; } -/* Stripped down version of DrawText, can only draw single line text and Prefix underscore - * (only on the last found amperstand) - * only flags to be found to be of use in testing: - * +/* Stripped down version of DrawText(), can only draw single line text and Prefix underscore + * (only on the last found amperstand). + * Only flags to be found to be of use in testing: + * * DT_NOPREFIX - Draw the string as is without removal of the amperstands and without underscore * DT_HIDEPREFIX - Draw the string without underscore * DT_PREFIXONLY - Draw only the underscore - * - * without any of these flags the behavior is the string being drawn without the amperstands and + * + * Without any of these flags the behavior is the string being drawn without the amperstands and * with the underscore. - * user32 has an equivalent function - UserLpkPSMTextOut - * - * Note: lpString does not need to be null terminated + * user32 has an equivalent function - UserLpkPSMTextOut(). + * + * Note: lpString does not need to be null terminated. */ INT WINAPI LpkPSMTextOut(HDC hdc, int x, int y, LPCWSTR lpString, int cString, DWORD dwFlags) { @@ -434,18 +434,18 @@ WINAPI LpkGetTextExtentExPoint( HDC hdc, LPCWSTR lpString, - INT cString, + INT cString, INT nMaxExtent, LPINT lpnFit, - LPINT lpnDx, + LPINT lpnDx, LPSIZE lpSize, DWORD dwUnused, int unknown) { SCRIPT_STRING_ANALYSIS ssa; HRESULT hr; - const SIZE *pSize; INT i, extent, *Dx; + TEXTMETRICW tm; UNREFERENCED_PARAMETER(dwUnused); UNREFERENCED_PARAMETER(unknown); @@ -453,7 +453,7 @@ LpkGetTextExtentExPoint( if (cString < 0 || !lpSize) return FALSE; - if (cString == 0) + if (cString == 0 || !lpString) { lpSize->cx = 0; lpSize->cy = 0; @@ -462,51 +462,48 @@ LpkGetTextExtentExPoint( /* Check if any processing is required */ if (ScriptIsComplex(lpString, cString, SIC_COMPLEX) != S_OK) - return GetTextExtentExPointWPri(hdc, lpString, cString, nMaxExtent, lpnFit, lpnDx, lpSize); - + goto fallback; + hr = ScriptStringAnalyse(hdc, lpString, cString, 3 * cString / 2 + 16, -1, SSA_GLYPHS, 0, NULL, NULL, NULL, NULL, NULL, &ssa); - if (hr != S_OK) - return FALSE; + goto fallback; - pSize = ScriptString_pSize(ssa); + /* Use logic from TextIntGetTextExtentPoint() */ + Dx = HeapAlloc(GetProcessHeap(), 0, cString * sizeof(INT)); + if (!Dx) + { + ScriptStringFree(&ssa); + goto fallback; + } - if (pSize) - *lpSize = *pSize; - else - GetTextExtentExPointWPri(hdc, lpString, cString, 0, NULL, NULL, lpSize); + if (lpnFit) + *lpnFit = 0; - /* Use logic from TextIntGetTextExtentPoint */ - if (lpnDx || lpnFit) - { - Dx = HeapAlloc(GetProcessHeap(), 0, cString * sizeof(INT)); + ScriptStringGetLogicalWidths(ssa, Dx); - if (!Dx) - { - ScriptStringFree(&ssa); - return FALSE; - } - - if (lpnFit) - *lpnFit = 0; + for (i = 0, extent = 0; i < cString; i++) + { + extent += Dx[i]; - ScriptStringGetLogicalWidths(ssa, Dx); + if (extent <= nMaxExtent && lpnFit) + *lpnFit = i + 1; - for (i = 0, extent = 0; i < cString; i++) - { - extent += Dx[i]; + if (lpnDx) + lpnDx[i] = extent; + } - if (extent <= nMaxExtent && lpnFit) - *lpnFit = i + 1; + HeapFree(GetProcessHeap(), 0, Dx); + ScriptStringFree(&ssa); - if (lpnDx) - lpnDx[i] = extent; - } + if (!GetTextMetricsW(hdc, &tm)) + return GetTextExtentExPointWPri(hdc, lpString, cString, 0, NULL, NULL, lpSize); - HeapFree(GetProcessHeap(), 0, Dx); - } + lpSize->cx = extent; + lpSize->cy = tm.tmHeight; - ScriptStringFree(&ssa); return TRUE; + +fallback: + return GetTextExtentExPointWPri(hdc, lpString, cString, nMaxExtent, lpnFit, lpnDx, lpSize); }
