pen.h File Reference

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Macros
#define	PEN_UnlockPen(pPenObj)   GDIOBJ_vUnlockObject((POBJ)pPenObj)
#define	PEN_ShareUnlockPen(ppen)   GDIOBJ_vDereferenceObject((POBJ)ppen)
#define	IntIsEffectiveWidePen(pbrLine)

Typedefs
typedef BRUSH	PEN
typedef BRUSH *	PPEN

Functions
PPEN NTAPI	PEN_AllocPenWithHandle (VOID)
PPEN NTAPI	PEN_AllocExtPenWithHandle (VOID)
PPEN FASTCALL	PEN_ShareLockPen (HPEN hpen)
INT NTAPI	PEN_GetObject (_In_ PPEN pPen, _In_ INT Count, _Out_ PLOGPEN Buffer)
VOID FASTCALL	AddPenLinesBounds (PDC, int, POINT *)

Macro Definition Documentation

IntIsEffectiveWidePen

#define IntIsEffectiveWidePen

(

pbrLine

)

Value:

    ( \
    (pbrLine)->lWidth > 1 && \
    ((pbrLine->flAttrs & BR_IS_OLDSTYLEPEN) || \
     ((pbrLine)->ulPenStyle & PS_TYPE_MASK) == PS_GEOMETRIC) \
)

Definition at line 33 of file pen.h.

PEN_ShareUnlockPen

#define PEN_ShareUnlockPen

(

ppen

)

GDIOBJ_vDereferenceObject((POBJ)ppen)

Definition at line 18 of file pen.h.

PEN_UnlockPen

#define PEN_UnlockPen

(

pPenObj

)

GDIOBJ_vUnlockObject((POBJ)pPenObj)

Definition at line 17 of file pen.h.

Typedef Documentation

PEN

typedef BRUSH PEN

Definition at line 5 of file pen.h.

PPEN

typedef BRUSH * PPEN

Definition at line 5 of file pen.h.

Function Documentation

AddPenLinesBounds()

VOID FASTCALL AddPenLinesBounds	(	PDC	dc,
		int	count,
		POINT *	points
	)

Definition at line 17 of file line.c.

{
    DWORD join, endcap;
    RECTL bounds, rect;
    LONG lWidth;
    PBRUSH pbrLine;
 
    /* Get BRUSH from current pen. */
    pbrLine = dc->dclevel.pbrLine;
    ASSERT(pbrLine);
 
    lWidth = 0;
 
    // Setup bounds
    bounds.left = bounds.top = INT_MAX;
    bounds.right = bounds.bottom = INT_MIN;
 
    if (((pbrLine->ulPenStyle & PS_TYPE_MASK) & PS_GEOMETRIC) || pbrLine->lWidth > 1)
    {
        /* Windows uses some heuristics to estimate the distance from the point that will be painted */
        lWidth = pbrLine->lWidth + 2;
        endcap = (PS_ENDCAP_MASK & pbrLine->ulPenStyle);
        join   = (PS_JOIN_MASK   & pbrLine->ulPenStyle);
        if (join == PS_JOIN_MITER)
        {
           lWidth *= 5;
           if (endcap == PS_ENDCAP_SQUARE) lWidth = (lWidth * 3 + 1) / 2;
        }
        else
        {
           if (endcap == PS_ENDCAP_SQUARE) lWidth -= lWidth / 4;
           else lWidth = (lWidth + 1) / 2;
        }
    }
 
    while (count-- > 0)
    {
        rect.left   = points->x - lWidth;
        rect.top    = points->y - lWidth;
        rect.right  = points->x + lWidth + 1;
        rect.bottom = points->y + lWidth + 1;
        RECTL_bUnionRect(&bounds, &bounds, &rect);
        points++;
    }
 
    DPRINT("APLB dc %p l %d t %d\n",dc,rect.left,rect.top);
    DPRINT("                 r %d b %d\n",rect.right,rect.bottom);
 
    {
       RECTL rcRgn = dc->erclClip; // Use the clip box for now.
 
       if (RECTL_bIntersectRect( &rcRgn, &rcRgn, &bounds ))
           IntUpdateBoundsRect(dc, &rcRgn);
       else
           IntUpdateBoundsRect(dc, &bounds);
    }
}

Referenced by IntGdiLineTo(), and IntGdiPolyline().

PEN_AllocExtPenWithHandle()

PPEN NTAPI PEN_AllocExtPenWithHandle

(

VOID

)

Definition at line 44 of file pen.c.

{
    PPEN ppen;
 
    ppen = (PBRUSH)GDIOBJ_AllocObjWithHandle(GDILoObjType_LO_EXTPEN_TYPE, sizeof(PEN));
    if (ppen == NULL)
    {
        return NULL;
    }
 
    PEN_vInit(ppen);
    return ppen;
}

Referenced by IntGdiExtCreatePen().

PEN_AllocPenWithHandle()

PPEN NTAPI PEN_AllocPenWithHandle

(

VOID

)

Definition at line 27 of file pen.c.

{
    PPEN ppen;
 
    ppen = (PBRUSH)GDIOBJ_AllocObjWithHandle(GDILoObjType_LO_PEN_TYPE, sizeof(PEN));
    if (ppen == NULL)
    {
        return NULL;
    }
 
    PEN_vInit(ppen);
    return ppen;
}

Referenced by IntCreateStockPen(), and IntGdiExtCreatePen().

PEN_GetObject()

INT NTAPI PEN_GetObject	(	_In_ PPEN	pPen,
		_In_ INT	Count,
		_Out_ PLOGPEN	Buffer
	)

PEN_ShareLockPen()

PPEN FASTCALL PEN_ShareLockPen

(

HPEN

hpen

)

Definition at line 61 of file pen.c.

{
    if ((GDI_HANDLE_GET_TYPE(hobj) != GDILoObjType_LO_PEN_TYPE) &&
        (GDI_HANDLE_GET_TYPE(hobj) != GDILoObjType_LO_EXTPEN_TYPE))
    {
        return NULL;
    }
 
    return (PBRUSH)GDIOBJ_ReferenceObjectByHandle(hobj, GDIObjType_BRUSH_TYPE);
}

Referenced by DC_vInitDc(), DC_vSetOwner(), DC_vUpdateLineBrush(), IntArc(), IntGdiSetSolidPenColor(), IntRoundRect(), and NtGdiEllipse().