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https://github.com/reactos/reactos.git
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527f2f9057
* Create a branch for some evul shell experiments. svn path=/branches/shell-experiments/; revision=61927
389 lines
10 KiB
C
389 lines
10 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: Pen functiona
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* FILE: subsys/win32k/objects/pen.c
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* PROGRAMER:
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*/
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#include <win32k.h>
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#define NDEBUG
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#include <debug.h>
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/* PRIVATE FUNCTIONS **********************************************************/
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PBRUSH
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FASTCALL
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PEN_ShareLockPen(HGDIOBJ hobj)
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{
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if ((GDI_HANDLE_GET_TYPE(hobj) != GDILoObjType_LO_PEN_TYPE) &&
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(GDI_HANDLE_GET_TYPE(hobj) != GDILoObjType_LO_EXTPEN_TYPE))
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{
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return NULL;
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}
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return (PBRUSH)GDIOBJ_ReferenceObjectByHandle(hobj, GDIObjType_BRUSH_TYPE);
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}
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HPEN
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APIENTRY
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IntGdiExtCreatePen(
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DWORD dwPenStyle,
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DWORD dwWidth,
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IN ULONG ulBrushStyle,
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IN ULONG ulColor,
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IN ULONG_PTR ulClientHatch,
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IN ULONG_PTR ulHatch,
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DWORD dwStyleCount,
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PULONG pStyle,
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IN ULONG cjDIB,
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IN BOOL bOldStylePen,
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IN OPTIONAL HBRUSH hbrush)
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{
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HPEN hPen;
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PBRUSH pbrushPen;
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static const BYTE PatternAlternate[] = {0x55, 0x55, 0x55, 0};
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static const BYTE PatternDash[] = {0xFF, 0xFF, 0xC0, 0};
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static const BYTE PatternDot[] = {0xE3, 0x8E, 0x38, 0};
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static const BYTE PatternDashDot[] = {0xFF, 0x81, 0xC0, 0};
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static const BYTE PatternDashDotDot[] = {0xFF, 0x8E, 0x38, 0};
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dwWidth = abs(dwWidth);
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if ( (dwPenStyle & PS_STYLE_MASK) == PS_NULL)
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{
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return StockObjects[NULL_PEN];
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}
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if (bOldStylePen)
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{
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pbrushPen = PEN_AllocPenWithHandle();
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}
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else
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{
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pbrushPen = PEN_AllocExtPenWithHandle();
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}
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if (!pbrushPen)
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{
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EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
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DPRINT("Can't allocate pen\n");
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return 0;
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}
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hPen = pbrushPen->BaseObject.hHmgr;
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// If nWidth is zero, the pen is a single pixel wide, regardless of the current transformation.
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if ((bOldStylePen) && (!dwWidth) && ((dwPenStyle & PS_STYLE_MASK) != PS_SOLID))
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dwWidth = 1;
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pbrushPen->ptPenWidth.x = dwWidth;
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pbrushPen->ptPenWidth.y = 0;
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pbrushPen->ulPenStyle = dwPenStyle;
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pbrushPen->BrushAttr.lbColor = ulColor;
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pbrushPen->ulStyle = ulBrushStyle;
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// FIXME: Copy the bitmap first ?
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pbrushPen->hbmClient = (HANDLE)ulClientHatch;
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pbrushPen->dwStyleCount = dwStyleCount;
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pbrushPen->pStyle = pStyle;
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pbrushPen->flAttrs = bOldStylePen ? BR_IS_OLDSTYLEPEN : BR_IS_PEN;
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// If dwPenStyle is PS_COSMETIC, the width must be set to 1.
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if ( !(bOldStylePen) && ((dwPenStyle & PS_TYPE_MASK) == PS_COSMETIC) && ( dwWidth != 1) )
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goto ExitCleanup;
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switch (dwPenStyle & PS_STYLE_MASK)
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{
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case PS_NULL:
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pbrushPen->flAttrs |= BR_IS_NULL;
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break;
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case PS_SOLID:
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pbrushPen->flAttrs |= BR_IS_SOLID;
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break;
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case PS_ALTERNATE:
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pbrushPen->flAttrs |= BR_IS_BITMAP;
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pbrushPen->hbmPattern = GreCreateBitmap(24, 1, 1, 1, (LPBYTE)PatternAlternate);
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break;
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case PS_DOT:
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pbrushPen->flAttrs |= BR_IS_BITMAP;
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pbrushPen->hbmPattern = GreCreateBitmap(24, 1, 1, 1, (LPBYTE)PatternDot);
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break;
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case PS_DASH:
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pbrushPen->flAttrs |= BR_IS_BITMAP;
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pbrushPen->hbmPattern = GreCreateBitmap(24, 1, 1, 1, (LPBYTE)PatternDash);
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break;
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case PS_DASHDOT:
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pbrushPen->flAttrs |= BR_IS_BITMAP;
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pbrushPen->hbmPattern = GreCreateBitmap(24, 1, 1, 1, (LPBYTE)PatternDashDot);
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break;
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case PS_DASHDOTDOT:
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pbrushPen->flAttrs |= BR_IS_BITMAP;
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pbrushPen->hbmPattern = GreCreateBitmap(24, 1, 1, 1, (LPBYTE)PatternDashDotDot);
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break;
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case PS_INSIDEFRAME:
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pbrushPen->flAttrs |= (BR_IS_SOLID | BR_IS_INSIDEFRAME);
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break;
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case PS_USERSTYLE:
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if ((dwPenStyle & PS_TYPE_MASK) == PS_COSMETIC)
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{
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/* FIXME: PS_USERSTYLE workaround */
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DPRINT1("PS_COSMETIC | PS_USERSTYLE not handled\n");
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pbrushPen->flAttrs |= BR_IS_SOLID;
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break;
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}
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else
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{
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UINT i;
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BOOL has_neg = FALSE, all_zero = TRUE;
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for(i = 0; (i < dwStyleCount) && !has_neg; i++)
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{
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has_neg = has_neg || (((INT)(pStyle[i])) < 0);
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all_zero = all_zero && (pStyle[i] == 0);
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}
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if(all_zero || has_neg)
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{
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goto ExitCleanup;
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}
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}
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/* FIXME: What style here? */
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pbrushPen->flAttrs |= 0;
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break;
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default:
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DPRINT1("IntGdiExtCreatePen unknown penstyle %x\n", dwPenStyle);
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}
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PEN_UnlockPen(pbrushPen);
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return hPen;
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ExitCleanup:
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EngSetLastError(ERROR_INVALID_PARAMETER);
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pbrushPen->pStyle = NULL;
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GDIOBJ_vDeleteObject(&pbrushPen->BaseObject);
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return NULL;
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}
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VOID
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FASTCALL
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IntGdiSetSolidPenColor(HPEN hPen, COLORREF Color)
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{
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PBRUSH pbrPen;
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pbrPen = PEN_ShareLockPen(hPen);
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if (pbrPen)
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{
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if (pbrPen->flAttrs & BR_IS_SOLID)
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{
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pbrPen->BrushAttr.lbColor = Color & 0xFFFFFF;
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}
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PEN_ShareUnlockPen(pbrPen);
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}
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}
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INT
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APIENTRY
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PEN_GetObject(PBRUSH pbrushPen, INT cbCount, PLOGPEN pBuffer)
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{
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PLOGPEN pLogPen;
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PEXTLOGPEN pExtLogPen;
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INT cbRetCount;
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if (pbrushPen->flAttrs & BR_IS_OLDSTYLEPEN)
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{
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cbRetCount = sizeof(LOGPEN);
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if (pBuffer)
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{
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if (cbCount < cbRetCount) return 0;
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if (((pbrushPen->ulPenStyle & PS_STYLE_MASK) == PS_NULL) &&
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(cbCount == sizeof(EXTLOGPEN)))
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{
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pExtLogPen = (PEXTLOGPEN)pBuffer;
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pExtLogPen->elpPenStyle = pbrushPen->ulPenStyle;
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pExtLogPen->elpWidth = 0;
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pExtLogPen->elpBrushStyle = pbrushPen->ulStyle;
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pExtLogPen->elpColor = pbrushPen->BrushAttr.lbColor;
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pExtLogPen->elpHatch = 0;
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pExtLogPen->elpNumEntries = 0;
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cbRetCount = sizeof(EXTLOGPEN);
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}
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else
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{
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pLogPen = (PLOGPEN)pBuffer;
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pLogPen->lopnWidth = pbrushPen->ptPenWidth;
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pLogPen->lopnStyle = pbrushPen->ulPenStyle;
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pLogPen->lopnColor = pbrushPen->BrushAttr.lbColor;
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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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// FIXME: Can we trust in dwStyleCount being <= 16?
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cbRetCount = sizeof(EXTLOGPEN) - sizeof(DWORD) + pbrushPen->dwStyleCount * sizeof(DWORD);
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if (pBuffer)
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{
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ULONG i;
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if (cbCount < cbRetCount) return 0;
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pExtLogPen = (PEXTLOGPEN)pBuffer;
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pExtLogPen->elpPenStyle = pbrushPen->ulPenStyle;
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pExtLogPen->elpWidth = pbrushPen->ptPenWidth.x;
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pExtLogPen->elpBrushStyle = pbrushPen->ulStyle;
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pExtLogPen->elpColor = pbrushPen->BrushAttr.lbColor;
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pExtLogPen->elpHatch = (ULONG_PTR)pbrushPen->hbmClient;
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pExtLogPen->elpNumEntries = pbrushPen->dwStyleCount;
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for (i = 0; i < pExtLogPen->elpNumEntries; i++)
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{
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pExtLogPen->elpStyleEntry[i] = pbrushPen->pStyle[i];
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}
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}
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}
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return cbRetCount;
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}
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/* PUBLIC FUNCTIONS ***********************************************************/
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HPEN
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APIENTRY
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NtGdiCreatePen(
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INT PenStyle,
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INT Width,
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COLORREF Color,
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IN HBRUSH hbr)
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{
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if ((PenStyle < PS_SOLID) ||( PenStyle > PS_INSIDEFRAME))
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{
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EngSetLastError(ERROR_INVALID_PARAMETER);
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return NULL;
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}
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return IntGdiExtCreatePen(PenStyle,
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Width,
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BS_SOLID,
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Color,
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0,
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0,
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0,
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NULL,
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0,
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TRUE,
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hbr);
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}
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HPEN
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APIENTRY
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NtGdiExtCreatePen(
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DWORD dwPenStyle,
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DWORD ulWidth,
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IN ULONG ulBrushStyle,
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IN ULONG ulColor,
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IN ULONG_PTR ulClientHatch,
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IN ULONG_PTR ulHatch,
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DWORD dwStyleCount,
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PULONG pUnsafeStyle,
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IN ULONG cjDIB,
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IN BOOL bOldStylePen,
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IN OPTIONAL HBRUSH hBrush)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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DWORD* pSafeStyle = NULL;
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HPEN hPen;
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if ((int)dwStyleCount < 0) return 0;
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if (dwStyleCount > 16)
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{
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EngSetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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if (dwStyleCount > 0)
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{
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if (pUnsafeStyle == NULL)
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{
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EngSetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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pSafeStyle = ExAllocatePoolWithTag(NonPagedPool,
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dwStyleCount * sizeof(DWORD),
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GDITAG_PENSTYLE);
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if (!pSafeStyle)
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{
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SetLastNtError(ERROR_NOT_ENOUGH_MEMORY);
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return 0;
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}
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_SEH2_TRY
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{
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ProbeForRead(pUnsafeStyle, dwStyleCount * sizeof(DWORD), 1);
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RtlCopyMemory(pSafeStyle,
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pUnsafeStyle,
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dwStyleCount * sizeof(DWORD));
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END
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if(!NT_SUCCESS(Status))
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{
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SetLastNtError(Status);
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ExFreePoolWithTag(pSafeStyle, GDITAG_PENSTYLE);
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return 0;
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}
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}
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if (ulBrushStyle == BS_PATTERN)
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{
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_SEH2_TRY
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{
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ProbeForRead((PVOID)ulHatch, cjDIB, 1);
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END
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if(!NT_SUCCESS(Status))
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{
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SetLastNtError(Status);
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if (pSafeStyle) ExFreePoolWithTag(pSafeStyle, GDITAG_PENSTYLE);
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return 0;
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}
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}
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hPen = IntGdiExtCreatePen(dwPenStyle,
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ulWidth,
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ulBrushStyle,
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ulColor,
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ulClientHatch,
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ulHatch,
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dwStyleCount,
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pSafeStyle,
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cjDIB,
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bOldStylePen,
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hBrush);
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if (!hPen && pSafeStyle)
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{
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ExFreePoolWithTag(pSafeStyle, GDITAG_PENSTYLE);
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}
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return hPen;
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}
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/* EOF */
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