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- Tim Jobling implemented PolyLine

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svn path=/trunk/; revision=4441
This commit is contained in:
Richard Campbell 2003-03-27 03:24:04 +00:00
parent 9588279d27
commit c99b43d4cb
5 changed files with 115 additions and 19 deletions
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17
reactos/lib/gdi32/misc/stubs.c
View file

@ -1,4 +1,4 @@
/* $Id: stubs.c,v 1.15 2003/03/20 03:04:02 mtempel Exp $
/* $Id: stubs.c,v 1.16 2003/03/27 03:24:03 rcampbell Exp $
*
* reactos/lib/gdi32/misc/stubs.c
*
@ -2066,21 +2066,6 @@ DPtoLP(
BOOL
STDCALL
Polyline(
HDC a0,
CONST POINT *a1,
int a2
)
{
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE;
}
BOOL
STDCALL
PolyBezier(

7
reactos/lib/gdi32/objects/line.c
View file

@ -21,4 +21,9 @@ MoveToEx(HDC hDC, int X, int Y, LPPOINT Point)
return W32kMoveToEx(hDC, X, Y, Point);
}
BOOL
STDCALL
Polyline( HDC hdc, CONST POINT *lppt, int cPoints )
{
return W32kPolyline(hdc, (CONST LPPOINT) lppt, cPoints);
}

35
reactos/subsys/win32k/eng/lineto.c
View file

@ -176,3 +176,38 @@ IntEngLineTo(SURFOBJ *DestSurf,
return ret;
}
BOOL STDCALL
IntEngPolyline(SURFOBJ *DestSurf,
CLIPOBJ *Clip,
BRUSHOBJ *Brush,
CONST LPPOINT pt,
LONG dCount,
MIX mix)
{
LONG i;
RECTL rect;
BOOL ret = FALSE;
//Draw the Polyline with a call to IntEngLineTo for each segment.
for (i=1; i<dCount; i++)
{
rect.left = MIN(pt[i-1].x, pt[i].x);
rect.top = MIN(pt[i-1].y, pt[i].y);
rect.right = MAX(pt[i-1].x, pt[i].x);
rect.bottom = MAX(pt[i-1].y, pt[i].y);
ret = IntEngLineTo(DestSurf,
Clip,
Brush,
pt[i-1].x,
pt[i-1].y,
pt[i].x,
pt[i].y,
&rect,
mix);
if (!ret)
break;
}
return ret;
}

8
reactos/subsys/win32k/include/inteng.h
View file

@ -28,5 +28,11 @@ XLATEOBJ *IntEngCreateXlate(USHORT DestPalType,
USHORT SourcePalType,
HPALETTE PaletteDest,
HPALETTE PaletteSource);
extern BOOL STDCALL IntEngPolyline(SURFOBJ *DestSurf,
CLIPOBJ *Clip,
BRUSHOBJ *Brush,
CONST LPPOINT pt,
LONG dCount,
MIX mix);
#endif

67
reactos/subsys/win32k/objects/line.c
View file

@ -259,7 +259,72 @@ W32kPolyline(HDC hDC,
CONST LPPOINT pt,
int Count)
{
UNIMPLEMENTED;
DC *dc = DC_HandleToPtr(hDC);
SURFOBJ *SurfObj = (SURFOBJ*)AccessUserObject(dc->Surface);
BOOL ret;
LONG i;
PPENOBJ pen;
PROSRGNDATA reg;
POINT *pts;
if (!dc)
return(FALSE);
if(PATH_IsPathOpen(dc->w.path))
{
ret = PATH_Polyline(hDC, pt, Count);
}
else
{
pen = (PPENOBJ) GDIOBJ_LockObj(dc->w.hPen, GO_PEN_MAGIC);
reg = (PROSRGNDATA)GDIOBJ_LockObj(dc->w.hGCClipRgn, GO_REGION_MAGIC);
ASSERT( pen );
//FIXME: Do somthing with reg...
//Allocate "Count" bytes of memory to hold a safe copy of pt
if (!(pts=ExAllocatePool(NonPagedPool, sizeof(POINT) * Count)))
{
GDIOBJ_UnlockObj( dc->w.hGCClipRgn, GO_REGION_MAGIC );
GDIOBJ_UnlockObj( dc->w.hPen, GO_PEN_MAGIC);
DC_ReleasePtr( hDC );
return(FALSE);
}
//safly copy pt to local version
if (STATUS_SUCCESS!=MmCopyFromCaller(pts, pt, sizeof(POINT) * Count))
{
ExFreePool(pts);
GDIOBJ_UnlockObj( dc->w.hGCClipRgn, GO_REGION_MAGIC );
GDIOBJ_UnlockObj( dc->w.hPen, GO_PEN_MAGIC);
DC_ReleasePtr( hDC );
return(FALSE);
}
//offset the array of point by the dc->w.DCOrg
for(i=0; i<Count; i++)
{
pts[i].x += dc->w.DCOrgX;
pts[i].y += dc->w.DCOrgY;
}
//get IntEngPolyline to do the drawing.
ret = IntEngPolyline(SurfObj,
NULL,
PenToBrushObj(dc, pen),
pts,
Count,
dc->w.ROPmode);
//Clean up
ExFreePool(pts);
GDIOBJ_UnlockObj( dc->w.hGCClipRgn, GO_REGION_MAGIC );
GDIOBJ_UnlockObj( dc->w.hPen, GO_PEN_MAGIC);
}
DC_ReleasePtr( hDC );
return(ret);
}
BOOL