2 * Graphics paths (BeginPath, EndPath etc.)
4 * Copyright 1997, 1998 Martin Boehme
6 * Copyright 2005 Dmitry Timoshkov
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 * Addaped for the use in ReactOS.
28 * PROJECT: ReactOS win32 kernel mode subsystem
29 * LICENSE: GPL - See COPYING in the top level directory
30 * FILE: subsystems/win32/win32k/objects/path.c
31 * PURPOSE: Path support
41 #define NUM_ENTRIES_INITIAL 16 /* Initial size of points / flags arrays */
42 #define GROW_FACTOR_NUMER 2 /* Numerator of grow factor for the array */
43 #define GROW_FACTOR_DENOM 1 /* Denominator of grow factor */
45 BOOL FASTCALL
PATH_AddEntry (PPATH pPath
, const POINT
*pPoint
, BYTE flags
);
46 BOOL FASTCALL
PATH_AddFlatBezier (PPATH pPath
, POINT
*pt
, BOOL closed
);
47 BOOL FASTCALL
PATH_DoArcPart (PPATH pPath
, FLOAT_POINT corners
[], double angleStart
, double angleEnd
, BYTE startEntryType
);
48 BOOL FASTCALL
PATH_FillPath( PDC dc
, PPATH pPath
);
49 BOOL FASTCALL
PATH_FlattenPath (PPATH pPath
);
50 VOID FASTCALL
PATH_NormalizePoint (FLOAT_POINT corners
[], const FLOAT_POINT
*pPoint
, double *pX
, double *pY
);
52 BOOL FASTCALL
PATH_ReserveEntries (PPATH pPath
, INT numEntries
);
53 VOID FASTCALL
PATH_ScaleNormalizedPoint (FLOAT_POINT corners
[], double x
, double y
, POINT
*pPoint
);
54 BOOL FASTCALL
PATH_StrokePath(DC
*dc
, PPATH pPath
);
55 BOOL
PATH_CheckCorners(DC
*dc
, POINT corners
[], INT x1
, INT y1
, INT x2
, INT y2
);
57 VOID FASTCALL
IntGetCurrentPositionEx(PDC dc
, LPPOINT pt
);
59 /***********************************************************************
65 PATH_Delete(HPATH hPath
)
68 if (!hPath
) return FALSE
;
69 pPath
= PATH_LockPath( hPath
);
70 if (!pPath
) return FALSE
;
71 PATH_DestroyGdiPath( pPath
);
72 PATH_UnlockPath( pPath
);
73 PATH_FreeExtPathByHandle(hPath
);
80 IntGdiCloseFigure(PPATH pPath
)
82 ASSERT(pPath
->state
== PATH_Open
);
84 // FIXME: Shouldn't we draw a line to the beginning of the figure?
85 // Set PT_CLOSEFIGURE on the last entry and start a new stroke
86 if(pPath
->numEntriesUsed
)
88 pPath
->pFlags
[pPath
->numEntriesUsed
-1]|=PT_CLOSEFIGURE
;
89 pPath
->newStroke
=TRUE
;
99 PATH_FillPath( PDC dc
, PPATH pPath
)
101 //INT mapMode, graphicsMode;
102 //SIZE ptViewportExt, ptWindowExt;
103 //POINTL ptViewportOrg, ptWindowOrg;
106 PDC_ATTR pdcattr
= dc
->pdcattr
;
108 if( pPath
->state
!= PATH_Closed
)
110 SetLastWin32Error(ERROR_CAN_NOT_COMPLETE
);
114 if( PATH_PathToRegion( pPath
, pdcattr
->jFillMode
, &hrgn
))
116 /* Since PaintRgn interprets the region as being in logical coordinates
117 * but the points we store for the path are already in device
118 * coordinates, we have to set the mapping mode to MM_TEXT temporarily.
119 * Using SaveDC to save information about the mapping mode / world
120 * transform would be easier but would require more overhead, especially
121 * now that SaveDC saves the current path.
124 /* Save the information about the old mapping mode */
125 //mapMode = pdcattr->iMapMode;
126 //ptViewportExt = pdcattr->szlViewportExt;
127 //ptViewportOrg = pdcattr->ptlViewportOrg;
128 //ptWindowExt = pdcattr->szlWindowExt;
129 //ptWindowOrg = pdcattr->ptlWindowOrg;
131 /* Save world transform
132 * NB: The Windows documentation on world transforms would lead one to
133 * believe that this has to be done only in GM_ADVANCED; however, my
134 * tests show that resetting the graphics mode to GM_COMPATIBLE does
135 * not reset the world transform.
137 MatrixS2XForm(&xform
, &dc
->dclevel
.mxWorldToPage
);
140 // IntGdiSetMapMode( dc, MM_TEXT );
141 // pdcattr->ptlViewportOrg.x = 0;
142 // pdcattr->ptlViewportOrg.y = 0;
143 // pdcattr->ptlWindowOrg.x = 0;
144 // pdcattr->ptlWindowOrg.y = 0;
146 // graphicsMode = pdcattr->iGraphicsMode;
147 // pdcattr->iGraphicsMode = GM_ADVANCED;
148 // IntGdiModifyWorldTransform( dc, &xform, MWT_IDENTITY );
149 // pdcattr->iGraphicsMode = graphicsMode;
151 /* Paint the region */
152 IntGdiPaintRgn( dc
, hrgn
);
153 GreDeleteObject( hrgn
);
154 /* Restore the old mapping mode */
155 // IntGdiSetMapMode( dc, mapMode );
156 // pdcattr->szlViewportExt = ptViewportExt;
157 // pdcattr->ptlViewportOrg = ptViewportOrg;
158 // pdcattr->szlWindowExt = ptWindowExt;
159 // pdcattr->ptlWindowOrg = ptWindowOrg;
161 /* Go to GM_ADVANCED temporarily to restore the world transform */
162 //graphicsMode = pdcattr->iGraphicsMode;
163 // pdcattr->iGraphicsMode = GM_ADVANCED;
164 // IntGdiModifyWorldTransform( dc, &xform, MWT_MAX+1 );
165 // pdcattr->iGraphicsMode = graphicsMode;
173 * Initializes the GdiPath structure.
177 PATH_InitGdiPath ( PPATH pPath
)
181 pPath
->state
=PATH_Null
;
184 pPath
->numEntriesUsed
=0;
185 pPath
->numEntriesAllocated
=0;
188 /* PATH_DestroyGdiPath
190 * Destroys a GdiPath structure (frees the memory in the arrays).
194 PATH_DestroyGdiPath ( PPATH pPath
)
198 if (pPath
->pPoints
) ExFreePoolWithTag(pPath
->pPoints
, TAG_PATH
);
199 if (pPath
->pFlags
) ExFreePoolWithTag(pPath
->pFlags
, TAG_PATH
);
202 /* PATH_AssignGdiPath
204 * Copies the GdiPath structure "pPathSrc" to "pPathDest". A deep copy is
205 * performed, i.e. the contents of the pPoints and pFlags arrays are copied,
206 * not just the pointers. Since this means that the arrays in pPathDest may
207 * need to be resized, pPathDest should have been initialized using
208 * PATH_InitGdiPath (in C++, this function would be an assignment operator,
209 * not a copy constructor).
210 * Returns TRUE if successful, else FALSE.
214 PATH_AssignGdiPath ( PPATH pPathDest
, const PPATH pPathSrc
)
216 ASSERT(pPathDest
!=NULL
&& pPathSrc
!=NULL
);
218 /* Make sure destination arrays are big enough */
219 if ( !PATH_ReserveEntries(pPathDest
, pPathSrc
->numEntriesUsed
) )
222 /* Perform the copy operation */
223 memcpy(pPathDest
->pPoints
, pPathSrc
->pPoints
,
224 sizeof(POINT
)*pPathSrc
->numEntriesUsed
);
225 memcpy(pPathDest
->pFlags
, pPathSrc
->pFlags
,
226 sizeof(BYTE
)*pPathSrc
->numEntriesUsed
);
228 pPathDest
->state
=pPathSrc
->state
;
229 pPathDest
->numEntriesUsed
=pPathSrc
->numEntriesUsed
;
230 pPathDest
->newStroke
=pPathSrc
->newStroke
;
236 * Should be called when a MoveTo is performed on a DC that has an
237 * open path. This starts a new stroke. Returns TRUE if successful, else
242 PATH_MoveTo ( PDC dc
)
244 PPATH pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
245 if (!pPath
) return FALSE
;
247 /* Check that path is open */
248 if ( pPath
->state
!= PATH_Open
)
250 PATH_UnlockPath( pPath
);
251 /* FIXME: Do we have to call SetLastError? */
254 /* Start a new stroke */
255 pPath
->newStroke
= TRUE
;
256 PATH_UnlockPath( pPath
);
262 * Should be called when a LineTo is performed on a DC that has an
263 * open path. This adds a PT_LINETO entry to the path (and possibly
264 * a PT_MOVETO entry, if this is the first LineTo in a stroke).
265 * Returns TRUE if successful, else FALSE.
269 PATH_LineTo ( PDC dc
, INT x
, INT y
)
273 POINT point
, pointCurPos
;
275 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
276 if (!pPath
) return FALSE
;
278 /* Check that path is open */
279 if ( pPath
->state
!= PATH_Open
)
281 PATH_UnlockPath( pPath
);
285 /* Convert point to device coordinates */
288 CoordLPtoDP ( dc
, &point
);
290 /* Add a PT_MOVETO if necessary */
291 if ( pPath
->newStroke
)
293 pPath
->newStroke
= FALSE
;
294 IntGetCurrentPositionEx ( dc
, &pointCurPos
);
295 CoordLPtoDP ( dc
, &pointCurPos
);
296 if ( !PATH_AddEntry(pPath
, &pointCurPos
, PT_MOVETO
) )
298 PATH_UnlockPath( pPath
);
303 /* Add a PT_LINETO entry */
304 Ret
= PATH_AddEntry(pPath
, &point
, PT_LINETO
);
305 PATH_UnlockPath( pPath
);
311 * Should be called when a call to Rectangle is performed on a DC that has
312 * an open path. Returns TRUE if successful, else FALSE.
316 PATH_Rectangle ( PDC dc
, INT x1
, INT y1
, INT x2
, INT y2
)
319 POINT corners
[2], pointTemp
;
322 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
323 if (!pPath
) return FALSE
;
325 /* Check that path is open */
326 if ( pPath
->state
!= PATH_Open
)
328 PATH_UnlockPath( pPath
);
332 /* Convert points to device coordinates */
337 IntLPtoDP ( dc
, corners
, 2 );
339 /* Make sure first corner is top left and second corner is bottom right */
340 if ( corners
[0].x
> corners
[1].x
)
343 corners
[0].x
=corners
[1].x
;
346 if ( corners
[0].y
> corners
[1].y
)
349 corners
[0].y
=corners
[1].y
;
353 /* In GM_COMPATIBLE, don't include bottom and right edges */
354 if (dc
->pdcattr
->iGraphicsMode
== GM_COMPATIBLE
)
360 /* Close any previous figure */
361 IntGdiCloseFigure(pPath
);
363 /* Add four points to the path */
364 pointTemp
.x
=corners
[1].x
;
365 pointTemp
.y
=corners
[0].y
;
366 if ( !PATH_AddEntry(pPath
, &pointTemp
, PT_MOVETO
) )
368 PATH_UnlockPath( pPath
);
371 if ( !PATH_AddEntry(pPath
, corners
, PT_LINETO
) )
373 PATH_UnlockPath( pPath
);
376 pointTemp
.x
=corners
[0].x
;
377 pointTemp
.y
=corners
[1].y
;
378 if ( !PATH_AddEntry(pPath
, &pointTemp
, PT_LINETO
) )
380 PATH_UnlockPath( pPath
);
383 if ( !PATH_AddEntry(pPath
, corners
+1, PT_LINETO
) )
385 PATH_UnlockPath( pPath
);
389 /* Close the rectangle figure */
390 IntGdiCloseFigure(pPath
) ;
391 PATH_UnlockPath( pPath
);
397 * Should be called when a call to RoundRect is performed on a DC that has
398 * an open path. Returns TRUE if successful, else FALSE.
400 * FIXME: it adds the same entries to the path as windows does, but there
401 * is an error in the bezier drawing code so that there are small pixel-size
402 * gaps when the resulting path is drawn by StrokePath()
404 BOOL FASTCALL
PATH_RoundRect(DC
*dc
, INT x1
, INT y1
, INT x2
, INT y2
, INT ell_width
, INT ell_height
)
407 POINT corners
[2], pointTemp
;
408 FLOAT_POINT ellCorners
[2];
410 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
411 if (!pPath
) return FALSE
;
413 /* Check that path is open */
414 if(pPath
->state
!=PATH_Open
)
416 PATH_UnlockPath( pPath
);
420 if(!PATH_CheckCorners(dc
,corners
,x1
,y1
,x2
,y2
))
422 PATH_UnlockPath( pPath
);
426 /* Add points to the roundrect path */
427 ellCorners
[0].x
= corners
[1].x
-ell_width
;
428 ellCorners
[0].y
= corners
[0].y
;
429 ellCorners
[1].x
= corners
[1].x
;
430 ellCorners
[1].y
= corners
[0].y
+ell_height
;
431 if(!PATH_DoArcPart(pPath
, ellCorners
, 0, -M_PI_2
, PT_MOVETO
))
433 PATH_UnlockPath( pPath
);
436 pointTemp
.x
= corners
[0].x
+ell_width
/2;
437 pointTemp
.y
= corners
[0].y
;
438 if(!PATH_AddEntry(pPath
, &pointTemp
, PT_LINETO
))
440 PATH_UnlockPath( pPath
);
443 ellCorners
[0].x
= corners
[0].x
;
444 ellCorners
[1].x
= corners
[0].x
+ell_width
;
445 if(!PATH_DoArcPart(pPath
, ellCorners
, -M_PI_2
, -M_PI
, FALSE
))
447 PATH_UnlockPath( pPath
);
450 pointTemp
.x
= corners
[0].x
;
451 pointTemp
.y
= corners
[1].y
-ell_height
/2;
452 if(!PATH_AddEntry(pPath
, &pointTemp
, PT_LINETO
))
454 PATH_UnlockPath( pPath
);
457 ellCorners
[0].y
= corners
[1].y
-ell_height
;
458 ellCorners
[1].y
= corners
[1].y
;
459 if(!PATH_DoArcPart(pPath
, ellCorners
, M_PI
, M_PI_2
, FALSE
))
461 PATH_UnlockPath( pPath
);
464 pointTemp
.x
= corners
[1].x
-ell_width
/2;
465 pointTemp
.y
= corners
[1].y
;
466 if(!PATH_AddEntry(pPath
, &pointTemp
, PT_LINETO
))
468 PATH_UnlockPath( pPath
);
471 ellCorners
[0].x
= corners
[1].x
-ell_width
;
472 ellCorners
[1].x
= corners
[1].x
;
473 if(!PATH_DoArcPart(pPath
, ellCorners
, M_PI_2
, 0, FALSE
))
475 PATH_UnlockPath( pPath
);
479 IntGdiCloseFigure(pPath
);
480 PATH_UnlockPath( pPath
);
486 * Should be called when a call to Ellipse is performed on a DC that has
487 * an open path. This adds four Bezier splines representing the ellipse
488 * to the path. Returns TRUE if successful, else FALSE.
492 PATH_Ellipse ( PDC dc
, INT x1
, INT y1
, INT x2
, INT y2
)
495 /* TODO: This should probably be revised to call PATH_AngleArc */
496 /* (once it exists) */
497 BOOL Ret
= PATH_Arc ( dc
, x1
, y1
, x2
, y2
, x1
, (y1
+y2
)/2, x1
, (y1
+y2
)/2, GdiTypeArc
);
500 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
501 if (!pPath
) return FALSE
;
502 IntGdiCloseFigure(pPath
);
503 PATH_UnlockPath( pPath
);
510 * Should be called when a call to Arc is performed on a DC that has
511 * an open path. This adds up to five Bezier splines representing the arc
512 * to the path. When 'lines' is 1, we add 1 extra line to get a chord,
513 * when 'lines' is 2, we add 2 extra lines to get a pie, and when 'lines' is
514 * -1 we add 1 extra line from the current DC position to the starting position
515 * of the arc before drawing the arc itself (arcto). Returns TRUE if successful,
520 PATH_Arc ( PDC dc
, INT x1
, INT y1
, INT x2
, INT y2
,
521 INT xStart
, INT yStart
, INT xEnd
, INT yEnd
, INT lines
)
523 double angleStart
, angleEnd
, angleStartQuadrant
, angleEndQuadrant
=0.0;
524 /* Initialize angleEndQuadrant to silence gcc's warning */
526 FLOAT_POINT corners
[2], pointStart
, pointEnd
;
527 POINT centre
, pointCurPos
;
528 BOOL start
, end
, Ret
= TRUE
;
533 /* FIXME: This function should check for all possible error returns */
534 /* FIXME: Do we have to respect newStroke? */
538 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
539 if (!pPath
) return FALSE
;
541 clockwise
= ((dc
->dclevel
.flPath
& DCPATH_CLOCKWISE
) != 0);
543 /* Check that path is open */
544 if ( pPath
->state
!= PATH_Open
)
550 /* Check for zero height / width */
551 /* FIXME: Only in GM_COMPATIBLE? */
552 if ( x1
==x2
|| y1
==y2
)
557 /* Convert points to device coordinates */
558 corners
[0].x
=(FLOAT
)x1
;
559 corners
[0].y
=(FLOAT
)y1
;
560 corners
[1].x
=(FLOAT
)x2
;
561 corners
[1].y
=(FLOAT
)y2
;
562 pointStart
.x
=(FLOAT
)xStart
;
563 pointStart
.y
=(FLOAT
)yStart
;
564 pointEnd
.x
=(FLOAT
)xEnd
;
565 pointEnd
.y
=(FLOAT
)yEnd
;
566 INTERNAL_LPTODP_FLOAT(dc
, corners
);
567 INTERNAL_LPTODP_FLOAT(dc
, corners
+1);
568 INTERNAL_LPTODP_FLOAT(dc
, &pointStart
);
569 INTERNAL_LPTODP_FLOAT(dc
, &pointEnd
);
571 /* Make sure first corner is top left and second corner is bottom right */
572 if ( corners
[0].x
> corners
[1].x
)
575 corners
[0].x
=corners
[1].x
;
578 if ( corners
[0].y
> corners
[1].y
)
581 corners
[0].y
=corners
[1].y
;
585 /* Compute start and end angle */
586 PATH_NormalizePoint(corners
, &pointStart
, &x
, &y
);
587 angleStart
=atan2(y
, x
);
588 PATH_NormalizePoint(corners
, &pointEnd
, &x
, &y
);
589 angleEnd
=atan2(y
, x
);
591 /* Make sure the end angle is "on the right side" of the start angle */
594 if ( angleEnd
<= angleStart
)
597 ASSERT(angleEnd
>=angleStart
);
602 if(angleEnd
>=angleStart
)
605 ASSERT(angleEnd
<=angleStart
);
609 /* In GM_COMPATIBLE, don't include bottom and right edges */
610 if (dc
->pdcattr
->iGraphicsMode
== GM_COMPATIBLE
)
616 /* arcto: Add a PT_MOVETO only if this is the first entry in a stroke */
617 if(lines
==GdiTypeArcTo
&& pPath
->newStroke
) // -1
619 pPath
->newStroke
=FALSE
;
620 IntGetCurrentPositionEx ( dc
, &pointCurPos
);
621 CoordLPtoDP(dc
, &pointCurPos
);
622 if(!PATH_AddEntry(pPath
, &pointCurPos
, PT_MOVETO
))
629 /* Add the arc to the path with one Bezier spline per quadrant that the
635 /* Determine the start and end angles for this quadrant */
638 angleStartQuadrant
=angleStart
;
640 angleEndQuadrant
=(floor(angleStart
/M_PI_2
)+1.0)*M_PI_2
;
642 angleEndQuadrant
=(ceil(angleStart
/M_PI_2
)-1.0)*M_PI_2
;
646 angleStartQuadrant
=angleEndQuadrant
;
648 angleEndQuadrant
+=M_PI_2
;
650 angleEndQuadrant
-=M_PI_2
;
653 /* Have we reached the last part of the arc? */
654 if ( (clockwise
&& angleEnd
<angleEndQuadrant
)
655 || (!clockwise
&& angleEnd
>angleEndQuadrant
)
658 /* Adjust the end angle for this quadrant */
659 angleEndQuadrant
= angleEnd
;
663 /* Add the Bezier spline to the path */
664 PATH_DoArcPart ( pPath
, corners
, angleStartQuadrant
, angleEndQuadrant
,
665 start
? (lines
==GdiTypeArcTo
? PT_LINETO
: PT_MOVETO
) : FALSE
); // -1
669 /* chord: close figure. pie: add line and close figure */
670 if (lines
==GdiTypeChord
) // 1
672 IntGdiCloseFigure(pPath
);
674 else if (lines
==GdiTypePie
) // 2
676 centre
.x
= (corners
[0].x
+corners
[1].x
)/2;
677 centre
.y
= (corners
[0].y
+corners
[1].y
)/2;
678 if(!PATH_AddEntry(pPath
, ¢re
, PT_LINETO
| PT_CLOSEFIGURE
))
682 PATH_UnlockPath( pPath
);
688 PATH_PolyBezierTo ( PDC dc
, const POINT
*pts
, DWORD cbPoints
)
698 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
699 if (!pPath
) return FALSE
;
701 /* Check that path is open */
702 if ( pPath
->state
!= PATH_Open
)
704 PATH_UnlockPath( pPath
);
708 /* Add a PT_MOVETO if necessary */
709 if ( pPath
->newStroke
)
711 pPath
->newStroke
=FALSE
;
712 IntGetCurrentPositionEx ( dc
, &pt
);
713 CoordLPtoDP ( dc
, &pt
);
714 if ( !PATH_AddEntry(pPath
, &pt
, PT_MOVETO
) )
716 PATH_UnlockPath( pPath
);
721 for(i
= 0; i
< cbPoints
; i
++)
724 CoordLPtoDP ( dc
, &pt
);
725 PATH_AddEntry(pPath
, &pt
, PT_BEZIERTO
);
727 PATH_UnlockPath( pPath
);
733 PATH_PolyBezier ( PDC dc
, const POINT
*pts
, DWORD cbPoints
)
743 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
744 if (!pPath
) return FALSE
;
746 /* Check that path is open */
747 if ( pPath
->state
!= PATH_Open
)
749 PATH_UnlockPath( pPath
);
753 for ( i
= 0; i
< cbPoints
; i
++ )
756 CoordLPtoDP ( dc
, &pt
);
757 PATH_AddEntry ( pPath
, &pt
, (i
== 0) ? PT_MOVETO
: PT_BEZIERTO
);
759 PATH_UnlockPath( pPath
);
765 PATH_Polyline ( PDC dc
, const POINT
*pts
, DWORD cbPoints
)
775 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
776 if (!pPath
) return FALSE
;
778 /* Check that path is open */
779 if ( pPath
->state
!= PATH_Open
)
781 PATH_UnlockPath( pPath
);
784 for ( i
= 0; i
< cbPoints
; i
++ )
787 CoordLPtoDP ( dc
, &pt
);
788 PATH_AddEntry(pPath
, &pt
, (i
== 0) ? PT_MOVETO
: PT_LINETO
);
790 PATH_UnlockPath( pPath
);
796 PATH_PolylineTo ( PDC dc
, const POINT
*pts
, DWORD cbPoints
)
806 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
807 if (!pPath
) return FALSE
;
809 /* Check that path is open */
810 if ( pPath
->state
!= PATH_Open
)
812 PATH_UnlockPath( pPath
);
816 /* Add a PT_MOVETO if necessary */
817 if ( pPath
->newStroke
)
819 pPath
->newStroke
= FALSE
;
820 IntGetCurrentPositionEx ( dc
, &pt
);
821 CoordLPtoDP ( dc
, &pt
);
822 if ( !PATH_AddEntry(pPath
, &pt
, PT_MOVETO
) )
824 PATH_UnlockPath( pPath
);
829 for(i
= 0; i
< cbPoints
; i
++)
832 CoordLPtoDP ( dc
, &pt
);
833 PATH_AddEntry(pPath
, &pt
, PT_LINETO
);
835 PATH_UnlockPath( pPath
);
842 PATH_Polygon ( PDC dc
, const POINT
*pts
, DWORD cbPoints
)
851 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
852 if (!pPath
) return FALSE
;
854 /* Check that path is open */
855 if ( pPath
->state
!= PATH_Open
)
857 PATH_UnlockPath( pPath
);
861 for(i
= 0; i
< cbPoints
; i
++)
864 CoordLPtoDP ( dc
, &pt
);
865 PATH_AddEntry(pPath
, &pt
, (i
== 0) ? PT_MOVETO
:
866 ((i
== cbPoints
-1) ? PT_LINETO
| PT_CLOSEFIGURE
:
869 PATH_UnlockPath( pPath
);
875 PATH_PolyPolygon ( PDC dc
, const POINT
* pts
, const INT
* counts
, UINT polygons
)
878 ULONG poly
, point
, i
;
886 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
887 if (!pPath
) return FALSE
;
889 /* Check that path is open */
890 if ( pPath
->state
!= PATH_Open
)
892 PATH_UnlockPath( pPath
);
896 for(i
= 0, poly
= 0; poly
< polygons
; poly
++)
898 for(point
= 0; point
< (ULONG
) counts
[poly
]; point
++, i
++)
901 CoordLPtoDP ( dc
, &pt
);
902 if(point
== 0) startpt
= pt
;
903 PATH_AddEntry(pPath
, &pt
, (point
== 0) ? PT_MOVETO
: PT_LINETO
);
905 /* win98 adds an extra line to close the figure for some reason */
906 PATH_AddEntry(pPath
, &startpt
, PT_LINETO
| PT_CLOSEFIGURE
);
908 PATH_UnlockPath( pPath
);
914 PATH_PolyPolyline ( PDC dc
, const POINT
* pts
, const DWORD
* counts
, DWORD polylines
)
917 ULONG poly
, point
, i
;
923 ASSERT ( polylines
);
925 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
926 if (!pPath
) return FALSE
;
928 /* Check that path is open */
929 if ( pPath
->state
!= PATH_Open
)
931 PATH_UnlockPath( pPath
);
935 for(i
= 0, poly
= 0; poly
< polylines
; poly
++)
937 for(point
= 0; point
< counts
[poly
]; point
++, i
++)
940 CoordLPtoDP ( dc
, &pt
);
941 PATH_AddEntry(pPath
, &pt
, (point
== 0) ? PT_MOVETO
: PT_LINETO
);
944 PATH_UnlockPath( pPath
);
951 * Helper function for PATH_RoundRect() and PATH_Rectangle()
953 BOOL
PATH_CheckCorners(DC
*dc
, POINT corners
[], INT x1
, INT y1
, INT x2
, INT y2
)
956 PDC_ATTR pdcattr
= dc
->pdcattr
;
958 /* Convert points to device coordinates */
963 CoordLPtoDP(dc
, &corners
[0]);
964 CoordLPtoDP(dc
, &corners
[1]);
966 /* Make sure first corner is top left and second corner is bottom right */
967 if(corners
[0].x
>corners
[1].x
)
970 corners
[0].x
=corners
[1].x
;
973 if(corners
[0].y
>corners
[1].y
)
976 corners
[0].y
=corners
[1].y
;
980 /* In GM_COMPATIBLE, don't include bottom and right edges */
981 if(pdcattr
->iGraphicsMode
==GM_COMPATIBLE
)
991 /* PATH_AddFlatBezier
996 PATH_AddFlatBezier ( PPATH pPath
, POINT
*pt
, BOOL closed
)
1001 pts
= GDI_Bezier( pt
, 4, &no
);
1002 if ( !pts
) return FALSE
;
1004 for(i
= 1; i
< no
; i
++)
1005 PATH_AddEntry(pPath
, &pts
[i
], (i
== no
-1 && closed
) ? PT_LINETO
| PT_CLOSEFIGURE
: PT_LINETO
);
1007 ExFreePoolWithTag(pts
, TAG_BEZIER
);
1013 * Replaces Beziers with line segments
1018 PATH_FlattenPath(PPATH pPath
)
1023 RtlZeroMemory(&newPath
, sizeof(newPath
));
1024 newPath
.state
= PATH_Open
;
1025 for(srcpt
= 0; srcpt
< pPath
->numEntriesUsed
; srcpt
++) {
1026 switch(pPath
->pFlags
[srcpt
] & ~PT_CLOSEFIGURE
) {
1029 PATH_AddEntry(&newPath
, &pPath
->pPoints
[srcpt
], pPath
->pFlags
[srcpt
]);
1032 PATH_AddFlatBezier(&newPath
, &pPath
->pPoints
[srcpt
-1], pPath
->pFlags
[srcpt
+2] & PT_CLOSEFIGURE
);
1037 newPath
.state
= PATH_Closed
;
1038 PATH_AssignGdiPath(pPath
, &newPath
);
1039 PATH_EmptyPath(&newPath
);
1044 /* PATH_PathToRegion
1046 * Creates a region from the specified path using the specified polygon
1047 * filling mode. The path is left unchanged. A handle to the region that
1048 * was created is stored in *pHrgn. If successful, TRUE is returned; if an
1049 * error occurs, SetLastError is called with the appropriate value and
1050 * FALSE is returned.
1054 PATH_PathToRegion ( PPATH pPath
, INT nPolyFillMode
, HRGN
*pHrgn
)
1056 int numStrokes
, iStroke
, i
;
1057 PULONG pNumPointsInStroke
;
1060 ASSERT(pPath
!=NULL
);
1061 ASSERT(pHrgn
!=NULL
);
1063 PATH_FlattenPath ( pPath
);
1065 /* First pass: Find out how many strokes there are in the path */
1066 /* FIXME: We could eliminate this with some bookkeeping in GdiPath */
1068 for(i
=0; i
<pPath
->numEntriesUsed
; i
++)
1069 if((pPath
->pFlags
[i
] & ~PT_CLOSEFIGURE
) == PT_MOVETO
)
1077 /* Allocate memory for number-of-points-in-stroke array */
1078 pNumPointsInStroke
= ExAllocatePoolWithTag(PagedPool
, sizeof(ULONG
) * numStrokes
, TAG_PATH
);
1079 if(!pNumPointsInStroke
)
1081 SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY
);
1085 /* Second pass: remember number of points in each polygon */
1086 iStroke
=-1; /* Will get incremented to 0 at beginning of first stroke */
1087 for(i
=0; i
<pPath
->numEntriesUsed
; i
++)
1089 /* Is this the beginning of a new stroke? */
1090 if((pPath
->pFlags
[i
] & ~PT_CLOSEFIGURE
) == PT_MOVETO
)
1093 pNumPointsInStroke
[iStroke
]=0;
1096 pNumPointsInStroke
[iStroke
]++;
1099 /* Create a region from the strokes */
1100 hrgn
= IntCreatePolyPolygonRgn( pPath
->pPoints
,
1106 SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY
);
1110 /* Free memory for number-of-points-in-stroke array */
1111 ExFreePoolWithTag(pNumPointsInStroke
, TAG_PATH
);
1120 * Removes all entries from the path and sets the path state to PATH_Null.
1124 PATH_EmptyPath ( PPATH pPath
)
1126 ASSERT(pPath
!=NULL
);
1128 pPath
->state
=PATH_Null
;
1129 pPath
->numEntriesUsed
=0;
1134 * Adds an entry to the path. For "flags", pass either PT_MOVETO, PT_LINETO
1135 * or PT_BEZIERTO, optionally ORed with PT_CLOSEFIGURE. Returns TRUE if
1136 * successful, FALSE otherwise (e.g. if not enough memory was available).
1140 PATH_AddEntry ( PPATH pPath
, const POINT
*pPoint
, BYTE flags
)
1142 ASSERT(pPath
!=NULL
);
1144 /* FIXME: If newStroke is true, perhaps we want to check that we're
1145 * getting a PT_MOVETO
1148 /* Check that path is open */
1149 if ( pPath
->state
!= PATH_Open
)
1152 /* Reserve enough memory for an extra path entry */
1153 if ( !PATH_ReserveEntries(pPath
, pPath
->numEntriesUsed
+1) )
1156 /* Store information in path entry */
1157 pPath
->pPoints
[pPath
->numEntriesUsed
]=*pPoint
;
1158 pPath
->pFlags
[pPath
->numEntriesUsed
]=flags
;
1160 /* If this is PT_CLOSEFIGURE, we have to start a new stroke next time */
1161 if((flags
& PT_CLOSEFIGURE
) == PT_CLOSEFIGURE
)
1162 pPath
->newStroke
=TRUE
;
1164 /* Increment entry count */
1165 pPath
->numEntriesUsed
++;
1170 /* PATH_ReserveEntries
1172 * Ensures that at least "numEntries" entries (for points and flags) have
1173 * been allocated; allocates larger arrays and copies the existing entries
1174 * to those arrays, if necessary. Returns TRUE if successful, else FALSE.
1178 PATH_ReserveEntries ( PPATH pPath
, INT numEntries
)
1180 INT numEntriesToAllocate
;
1184 ASSERT(pPath
!=NULL
);
1185 ASSERT(numEntries
>=0);
1187 /* Do we have to allocate more memory? */
1188 if(numEntries
> pPath
->numEntriesAllocated
)
1190 /* Find number of entries to allocate. We let the size of the array
1191 * grow exponentially, since that will guarantee linear time
1193 if(pPath
->numEntriesAllocated
)
1195 numEntriesToAllocate
=pPath
->numEntriesAllocated
;
1196 while(numEntriesToAllocate
<numEntries
)
1197 numEntriesToAllocate
=numEntriesToAllocate
*GROW_FACTOR_NUMER
/GROW_FACTOR_DENOM
;
1199 numEntriesToAllocate
=numEntries
;
1201 /* Allocate new arrays */
1202 pPointsNew
=(POINT
*)ExAllocatePoolWithTag(PagedPool
, numEntriesToAllocate
* sizeof(POINT
), TAG_PATH
);
1205 pFlagsNew
=(BYTE
*)ExAllocatePoolWithTag(PagedPool
, numEntriesToAllocate
* sizeof(BYTE
), TAG_PATH
);
1208 ExFreePoolWithTag(pPointsNew
, TAG_PATH
);
1212 /* Copy old arrays to new arrays and discard old arrays */
1215 ASSERT(pPath
->pFlags
);
1217 memcpy(pPointsNew
, pPath
->pPoints
, sizeof(POINT
)*pPath
->numEntriesUsed
);
1218 memcpy(pFlagsNew
, pPath
->pFlags
, sizeof(BYTE
)*pPath
->numEntriesUsed
);
1220 ExFreePoolWithTag(pPath
->pPoints
, TAG_PATH
);
1221 ExFreePoolWithTag(pPath
->pFlags
, TAG_PATH
);
1223 pPath
->pPoints
=pPointsNew
;
1224 pPath
->pFlags
=pFlagsNew
;
1225 pPath
->numEntriesAllocated
=numEntriesToAllocate
;
1233 * Creates a Bezier spline that corresponds to part of an arc and appends the
1234 * corresponding points to the path. The start and end angles are passed in
1235 * "angleStart" and "angleEnd"; these angles should span a quarter circle
1236 * at most. If "startEntryType" is non-zero, an entry of that type for the first
1237 * control point is added to the path; otherwise, it is assumed that the current
1238 * position is equal to the first control point.
1242 PATH_DoArcPart ( PPATH pPath
, FLOAT_POINT corners
[],
1243 double angleStart
, double angleEnd
, BYTE startEntryType
)
1245 double halfAngle
, a
;
1246 double xNorm
[4], yNorm
[4];
1250 ASSERT(fabs(angleEnd
-angleStart
)<=M_PI_2
);
1252 /* FIXME: Is there an easier way of computing this? */
1254 /* Compute control points */
1255 halfAngle
=(angleEnd
-angleStart
)/2.0;
1256 if(fabs(halfAngle
)>1e-8)
1258 a
=4.0/3.0*(1-cos(halfAngle
))/sin(halfAngle
);
1259 xNorm
[0]=cos(angleStart
);
1260 yNorm
[0]=sin(angleStart
);
1261 xNorm
[1]=xNorm
[0] - a
*yNorm
[0];
1262 yNorm
[1]=yNorm
[0] + a
*xNorm
[0];
1263 xNorm
[3]=cos(angleEnd
);
1264 yNorm
[3]=sin(angleEnd
);
1265 xNorm
[2]=xNorm
[3] + a
*yNorm
[3];
1266 yNorm
[2]=yNorm
[3] - a
*xNorm
[3];
1270 xNorm
[i
]=cos(angleStart
);
1271 yNorm
[i
]=sin(angleStart
);
1274 /* Add starting point to path if desired */
1277 PATH_ScaleNormalizedPoint(corners
, xNorm
[0], yNorm
[0], &point
);
1278 if(!PATH_AddEntry(pPath
, &point
, startEntryType
))
1282 /* Add remaining control points */
1285 PATH_ScaleNormalizedPoint(corners
, xNorm
[i
], yNorm
[i
], &point
);
1286 if(!PATH_AddEntry(pPath
, &point
, PT_BEZIERTO
))
1293 /* PATH_ScaleNormalizedPoint
1295 * Scales a normalized point (x, y) with respect to the box whose corners are
1296 * passed in "corners". The point is stored in "*pPoint". The normalized
1297 * coordinates (-1.0, -1.0) correspond to corners[0], the coordinates
1298 * (1.0, 1.0) correspond to corners[1].
1302 PATH_ScaleNormalizedPoint ( FLOAT_POINT corners
[], double x
,
1303 double y
, POINT
*pPoint
)
1307 pPoint
->x
=GDI_ROUND( (double)corners
[0].x
+ (double)(corners
[1].x
-corners
[0].x
)*0.5*(x
+1.0) );
1308 pPoint
->y
=GDI_ROUND( (double)corners
[0].y
+ (double)(corners
[1].y
-corners
[0].y
)*0.5*(y
+1.0) );
1311 /* PATH_NormalizePoint
1313 * Normalizes a point with respect to the box whose corners are passed in
1314 * corners. The normalized coordinates are stored in *pX and *pY.
1318 PATH_NormalizePoint ( FLOAT_POINT corners
[],
1319 const FLOAT_POINT
*pPoint
,
1320 double *pX
, double *pY
)
1326 *pX
=(double)(pPoint
->x
-corners
[0].x
)/(double)(corners
[1].x
-corners
[0].x
) * 2.0 - 1.0;
1327 *pY
=(double)(pPoint
->y
-corners
[0].y
)/(double)(corners
[1].y
-corners
[0].y
) * 2.0 - 1.0;
1331 BOOL FASTCALL
PATH_StrokePath(DC
*dc
, PPATH pPath
)
1335 INT nLinePts
, nAlloc
;
1336 POINT
*pLinePts
= NULL
;
1337 POINT ptViewportOrg
, ptWindowOrg
;
1338 SIZE szViewportExt
, szWindowExt
;
1339 DWORD mapMode
, graphicsMode
;
1341 PDC_ATTR pdcattr
= dc
->pdcattr
;
1343 DPRINT("Enter %s\n", __FUNCTION__
);
1345 if (pPath
->state
!= PATH_Closed
)
1348 /* Save the mapping mode info */
1349 mapMode
= pdcattr
->iMapMode
;
1351 DC_vUpdateViewportExt(dc
);
1352 szViewportExt
= dc
->pdcattr
->szlViewportExt
;
1353 ptViewportOrg
= dc
->pdcattr
->ptlViewportOrg
;
1354 szWindowExt
= dc
->pdcattr
->szlWindowExt
;
1355 ptWindowOrg
= dc
->pdcattr
->ptlWindowOrg
;
1357 MatrixS2XForm(&xform
, &dc
->dclevel
.mxWorldToPage
);
1360 pdcattr
->iMapMode
= MM_TEXT
;
1361 pdcattr
->ptlViewportOrg
.x
= 0;
1362 pdcattr
->ptlViewportOrg
.y
= 0;
1363 pdcattr
->ptlWindowOrg
.x
= 0;
1364 pdcattr
->ptlWindowOrg
.y
= 0;
1365 graphicsMode
= pdcattr
->iGraphicsMode
;
1366 pdcattr
->iGraphicsMode
= GM_ADVANCED
;
1367 IntGdiModifyWorldTransform(dc
, &xform
, MWT_IDENTITY
);
1368 pdcattr
->iGraphicsMode
= graphicsMode
;
1370 /* Allocate enough memory for the worst case without beziers (one PT_MOVETO
1371 * and the rest PT_LINETO with PT_CLOSEFIGURE at the end) plus some buffer
1372 * space in case we get one to keep the number of reallocations small. */
1373 nAlloc
= pPath
->numEntriesUsed
+ 1 + 300;
1374 pLinePts
= ExAllocatePoolWithTag(PagedPool
, nAlloc
* sizeof(POINT
), TAG_PATH
);
1377 DPRINT1("Can't allocate pool!\n");
1378 SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY
);
1383 for(i
= 0; i
< pPath
->numEntriesUsed
; i
++)
1385 if((i
== 0 || (pPath
->pFlags
[i
-1] & PT_CLOSEFIGURE
))
1386 && (pPath
->pFlags
[i
] != PT_MOVETO
))
1388 DPRINT1("Expected PT_MOVETO %s, got path flag %d\n",
1389 i
== 0 ? "as first point" : "after PT_CLOSEFIGURE",
1390 (INT
)pPath
->pFlags
[i
]);
1394 switch(pPath
->pFlags
[i
])
1397 DPRINT("Got PT_MOVETO (%ld, %ld)\n",
1398 pPath
->pPoints
[i
].x
, pPath
->pPoints
[i
].y
);
1399 if(nLinePts
>= 2) IntGdiPolyline(dc
, pLinePts
, nLinePts
);
1401 pLinePts
[nLinePts
++] = pPath
->pPoints
[i
];
1404 case (PT_LINETO
| PT_CLOSEFIGURE
):
1405 DPRINT("Got PT_LINETO (%ld, %ld)\n",
1406 pPath
->pPoints
[i
].x
, pPath
->pPoints
[i
].y
);
1407 pLinePts
[nLinePts
++] = pPath
->pPoints
[i
];
1410 DPRINT("Got PT_BEZIERTO\n");
1411 if(pPath
->pFlags
[i
+1] != PT_BEZIERTO
||
1412 (pPath
->pFlags
[i
+2] & ~PT_CLOSEFIGURE
) != PT_BEZIERTO
)
1414 DPRINT1("Path didn't contain 3 successive PT_BEZIERTOs\n");
1420 INT nBzrPts
, nMinAlloc
;
1421 POINT
*pBzrPts
= GDI_Bezier(&pPath
->pPoints
[i
-1], 4, &nBzrPts
);
1422 /* Make sure we have allocated enough memory for the lines of
1423 * this bezier and the rest of the path, assuming we won't get
1424 * another one (since we won't reallocate again then). */
1425 nMinAlloc
= nLinePts
+ (pPath
->numEntriesUsed
- i
) + nBzrPts
;
1426 if(nAlloc
< nMinAlloc
)
1428 // Reallocate memory
1430 POINT
*Realloc
= NULL
;
1431 nAlloc
= nMinAlloc
* 2;
1433 Realloc
= ExAllocatePoolWithTag(PagedPool
,
1434 nAlloc
* sizeof(POINT
),
1439 DPRINT1("Can't allocate pool!\n");
1443 memcpy(Realloc
, pLinePts
, nLinePts
*sizeof(POINT
));
1444 ExFreePoolWithTag(pLinePts
, TAG_PATH
);
1447 memcpy(&pLinePts
[nLinePts
], &pBzrPts
[1], (nBzrPts
- 1) * sizeof(POINT
));
1448 nLinePts
+= nBzrPts
- 1;
1449 ExFreePoolWithTag(pBzrPts
, TAG_BEZIER
);
1454 DPRINT1("Got path flag %d (not supported)\n", (INT
)pPath
->pFlags
[i
]);
1458 if(pPath
->pFlags
[i
] & PT_CLOSEFIGURE
)
1460 pLinePts
[nLinePts
++] = pLinePts
[0];
1464 IntGdiPolyline(dc
, pLinePts
, nLinePts
);
1469 if(pLinePts
) ExFreePoolWithTag(pLinePts
, TAG_PATH
);
1471 /* Restore the old mapping mode */
1472 pdcattr
->iMapMode
= mapMode
;
1473 pdcattr
->szlWindowExt
.cx
= szWindowExt
.cx
;
1474 pdcattr
->szlWindowExt
.cy
= szWindowExt
.cy
;
1475 pdcattr
->ptlWindowOrg
.x
= ptWindowOrg
.x
;
1476 pdcattr
->ptlWindowOrg
.y
= ptWindowOrg
.y
;
1478 pdcattr
->szlViewportExt
.cx
= szViewportExt
.cx
;
1479 pdcattr
->szlViewportExt
.cy
= szViewportExt
.cy
;
1480 pdcattr
->ptlViewportOrg
.x
= ptViewportOrg
.x
;
1481 pdcattr
->ptlViewportOrg
.y
= ptViewportOrg
.y
;
1483 /* Restore the world transform */
1484 XForm2MatrixS(&dc
->dclevel
.mxWorldToPage
, &xform
);
1486 /* If we've moved the current point then get its new position
1487 which will be in device (MM_TEXT) co-ords, convert it to
1488 logical co-ords and re-set it. This basically updates
1489 dc->CurPosX|Y so that their values are in the correct mapping
1495 IntGetCurrentPositionEx(dc
, &pt
);
1496 IntDPtoLP(dc
, &pt
, 1);
1497 IntGdiMoveToEx(dc
, pt
.x
, pt
.y
, NULL
, FALSE
);
1499 DPRINT("Leave %s, ret=%d\n", __FUNCTION__
, ret
);
1503 #define round(x) ((int)((x)>0?(x)+0.5:(x)-0.5))
1508 PATH_WidenPath(DC
*dc
)
1510 INT i
, j
, numStrokes
, penWidth
, penWidthIn
, penWidthOut
, size
, penStyle
;
1512 PPATH pPath
, pNewPath
, *pStrokes
= NULL
, *pOldStrokes
, pUpPath
, pDownPath
;
1514 DWORD obj_type
, joint
, endcap
, penType
;
1515 PDC_ATTR pdcattr
= dc
->pdcattr
;
1517 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
1518 if (!pPath
) return FALSE
;
1520 if(pPath
->state
== PATH_Open
)
1522 PATH_UnlockPath( pPath
);
1523 SetLastWin32Error(ERROR_CAN_NOT_COMPLETE
);
1527 PATH_FlattenPath(pPath
);
1529 size
= IntGdiGetObject( pdcattr
->hpen
, 0, NULL
);
1532 PATH_UnlockPath( pPath
);
1533 SetLastWin32Error(ERROR_CAN_NOT_COMPLETE
);
1537 elp
= ExAllocatePoolWithTag(PagedPool
, size
, TAG_PATH
);
1538 (VOID
) IntGdiGetObject( pdcattr
->hpen
, size
, elp
);
1540 obj_type
= GDIOBJ_GetObjectType(pdcattr
->hpen
);
1541 if(obj_type
== GDI_OBJECT_TYPE_PEN
)
1543 penStyle
= ((LOGPEN
*)elp
)->lopnStyle
;
1545 else if(obj_type
== GDI_OBJECT_TYPE_EXTPEN
)
1547 penStyle
= elp
->elpPenStyle
;
1551 SetLastWin32Error(ERROR_CAN_NOT_COMPLETE
);
1552 ExFreePoolWithTag(elp
, TAG_PATH
);
1553 PATH_UnlockPath( pPath
);
1557 penWidth
= elp
->elpWidth
;
1558 ExFreePoolWithTag(elp
, TAG_PATH
);
1560 endcap
= (PS_ENDCAP_MASK
& penStyle
);
1561 joint
= (PS_JOIN_MASK
& penStyle
);
1562 penType
= (PS_TYPE_MASK
& penStyle
);
1564 /* The function cannot apply to cosmetic pens */
1565 if(obj_type
== GDI_OBJECT_TYPE_EXTPEN
&& penType
== PS_COSMETIC
)
1567 PATH_UnlockPath( pPath
);
1568 SetLastWin32Error(ERROR_CAN_NOT_COMPLETE
);
1572 penWidthIn
= penWidth
/ 2;
1573 penWidthOut
= penWidth
/ 2;
1574 if(penWidthIn
+ penWidthOut
< penWidth
)
1579 for(i
= 0, j
= 0; i
< pPath
->numEntriesUsed
; i
++, j
++)
1582 if((i
== 0 || (pPath
->pFlags
[i
-1] & PT_CLOSEFIGURE
)) &&
1583 (pPath
->pFlags
[i
] != PT_MOVETO
))
1585 DPRINT1("Expected PT_MOVETO %s, got path flag %c\n",
1586 i
== 0 ? "as first point" : "after PT_CLOSEFIGURE",
1590 switch(pPath
->pFlags
[i
])
1595 pStrokes
[numStrokes
- 1]->state
= PATH_Closed
;
1599 if (numStrokes
== 1)
1600 pStrokes
= ExAllocatePoolWithTag(PagedPool
, numStrokes
* sizeof(PPATH
), TAG_PATH
);
1603 pOldStrokes
= pStrokes
; // Save old pointer.
1604 pStrokes
= ExAllocatePoolWithTag(PagedPool
, numStrokes
* sizeof(PPATH
), TAG_PATH
);
1605 if (!pStrokes
) return FALSE
;
1606 RtlCopyMemory(pStrokes
, pOldStrokes
, numStrokes
* sizeof(PPATH
));
1607 ExFreePoolWithTag(pOldStrokes
, TAG_PATH
); // Free old pointer.
1609 if (!pStrokes
) return FALSE
;
1610 pStrokes
[numStrokes
- 1] = ExAllocatePoolWithTag(PagedPool
, sizeof(PATH
), TAG_PATH
);
1612 PATH_InitGdiPath(pStrokes
[numStrokes
- 1]);
1613 pStrokes
[numStrokes
- 1]->state
= PATH_Open
;
1615 case (PT_LINETO
| PT_CLOSEFIGURE
):
1616 point
.x
= pPath
->pPoints
[i
].x
;
1617 point
.y
= pPath
->pPoints
[i
].y
;
1618 PATH_AddEntry(pStrokes
[numStrokes
- 1], &point
, pPath
->pFlags
[i
]);
1621 /* should never happen because of the FlattenPath call */
1622 DPRINT1("Should never happen\n");
1625 DPRINT1("Got path flag %c\n", pPath
->pFlags
[i
]);
1630 pNewPath
= ExAllocatePoolWithTag(PagedPool
, sizeof(PATH
), TAG_PATH
);
1631 PATH_InitGdiPath(pNewPath
);
1632 pNewPath
->state
= PATH_Open
;
1634 for(i
= 0; i
< numStrokes
; i
++)
1636 pUpPath
= ExAllocatePoolWithTag(PagedPool
, sizeof(PATH
), TAG_PATH
);
1637 PATH_InitGdiPath(pUpPath
);
1638 pUpPath
->state
= PATH_Open
;
1639 pDownPath
= ExAllocatePoolWithTag(PagedPool
, sizeof(PATH
), TAG_PATH
);
1640 PATH_InitGdiPath(pDownPath
);
1641 pDownPath
->state
= PATH_Open
;
1643 for(j
= 0; j
< pStrokes
[i
]->numEntriesUsed
; j
++)
1645 /* Beginning or end of the path if not closed */
1646 if((!(pStrokes
[i
]->pFlags
[pStrokes
[i
]->numEntriesUsed
- 1] & PT_CLOSEFIGURE
)) && (j
== 0 || j
== pStrokes
[i
]->numEntriesUsed
- 1) )
1648 /* Compute segment angle */
1649 double xo
, yo
, xa
, ya
, theta
;
1651 FLOAT_POINT corners
[2];
1654 xo
= pStrokes
[i
]->pPoints
[j
].x
;
1655 yo
= pStrokes
[i
]->pPoints
[j
].y
;
1656 xa
= pStrokes
[i
]->pPoints
[1].x
;
1657 ya
= pStrokes
[i
]->pPoints
[1].y
;
1661 xa
= pStrokes
[i
]->pPoints
[j
- 1].x
;
1662 ya
= pStrokes
[i
]->pPoints
[j
- 1].y
;
1663 xo
= pStrokes
[i
]->pPoints
[j
].x
;
1664 yo
= pStrokes
[i
]->pPoints
[j
].y
;
1666 theta
= atan2( ya
- yo
, xa
- xo
);
1669 case PS_ENDCAP_SQUARE
:
1670 pt
.x
= xo
+ round(sqrt(2) * penWidthOut
* cos(M_PI_4
+ theta
));
1671 pt
.y
= yo
+ round(sqrt(2) * penWidthOut
* sin(M_PI_4
+ theta
));
1672 PATH_AddEntry(pUpPath
, &pt
, (j
== 0 ? PT_MOVETO
: PT_LINETO
) );
1673 pt
.x
= xo
+ round(sqrt(2) * penWidthIn
* cos(- M_PI_4
+ theta
));
1674 pt
.y
= yo
+ round(sqrt(2) * penWidthIn
* sin(- M_PI_4
+ theta
));
1675 PATH_AddEntry(pUpPath
, &pt
, PT_LINETO
);
1677 case PS_ENDCAP_FLAT
:
1678 pt
.x
= xo
+ round( penWidthOut
* cos(theta
+ M_PI_2
) );
1679 pt
.y
= yo
+ round( penWidthOut
* sin(theta
+ M_PI_2
) );
1680 PATH_AddEntry(pUpPath
, &pt
, (j
== 0 ? PT_MOVETO
: PT_LINETO
));
1681 pt
.x
= xo
- round( penWidthIn
* cos(theta
+ M_PI_2
) );
1682 pt
.y
= yo
- round( penWidthIn
* sin(theta
+ M_PI_2
) );
1683 PATH_AddEntry(pUpPath
, &pt
, PT_LINETO
);
1685 case PS_ENDCAP_ROUND
:
1687 corners
[0].x
= xo
- penWidthIn
;
1688 corners
[0].y
= yo
- penWidthIn
;
1689 corners
[1].x
= xo
+ penWidthOut
;
1690 corners
[1].y
= yo
+ penWidthOut
;
1691 PATH_DoArcPart(pUpPath
,corners
, theta
+ M_PI_2
, theta
+ 3 * M_PI_4
, (j
== 0 ? PT_MOVETO
: FALSE
));
1692 PATH_DoArcPart(pUpPath
,corners
, theta
+ 3 * M_PI_4
, theta
+ M_PI
, FALSE
);
1693 PATH_DoArcPart(pUpPath
,corners
, theta
+ M_PI
, theta
+ 5 * M_PI_4
, FALSE
);
1694 PATH_DoArcPart(pUpPath
,corners
, theta
+ 5 * M_PI_4
, theta
+ 3 * M_PI_2
, FALSE
);
1698 /* Corpse of the path */
1703 double xa
, ya
, xb
, yb
, xo
, yo
;
1704 double alpha
, theta
, miterWidth
;
1705 DWORD _joint
= joint
;
1707 PPATH pInsidePath
, pOutsidePath
;
1708 if(j
> 0 && j
< pStrokes
[i
]->numEntriesUsed
- 1)
1715 previous
= pStrokes
[i
]->numEntriesUsed
- 1;
1723 xo
= pStrokes
[i
]->pPoints
[j
].x
;
1724 yo
= pStrokes
[i
]->pPoints
[j
].y
;
1725 xa
= pStrokes
[i
]->pPoints
[previous
].x
;
1726 ya
= pStrokes
[i
]->pPoints
[previous
].y
;
1727 xb
= pStrokes
[i
]->pPoints
[next
].x
;
1728 yb
= pStrokes
[i
]->pPoints
[next
].y
;
1729 theta
= atan2( yo
- ya
, xo
- xa
);
1730 alpha
= atan2( yb
- yo
, xb
- xo
) - theta
;
1731 if (alpha
> 0) alpha
-= M_PI
;
1733 if(_joint
== PS_JOIN_MITER
&& dc
->dclevel
.laPath
.eMiterLimit
< fabs(1 / sin(alpha
/2)))
1735 _joint
= PS_JOIN_BEVEL
;
1739 pInsidePath
= pUpPath
;
1740 pOutsidePath
= pDownPath
;
1744 pInsidePath
= pDownPath
;
1745 pOutsidePath
= pUpPath
;
1751 /* Inside angle points */
1754 pt
.x
= xo
- round( penWidthIn
* cos(theta
+ M_PI_2
) );
1755 pt
.y
= yo
- round( penWidthIn
* sin(theta
+ M_PI_2
) );
1759 pt
.x
= xo
+ round( penWidthIn
* cos(theta
+ M_PI_2
) );
1760 pt
.y
= yo
+ round( penWidthIn
* sin(theta
+ M_PI_2
) );
1762 PATH_AddEntry(pInsidePath
, &pt
, PT_LINETO
);
1765 pt
.x
= xo
+ round( penWidthIn
* cos(M_PI_2
+ alpha
+ theta
) );
1766 pt
.y
= yo
+ round( penWidthIn
* sin(M_PI_2
+ alpha
+ theta
) );
1770 pt
.x
= xo
- round( penWidthIn
* cos(M_PI_2
+ alpha
+ theta
) );
1771 pt
.y
= yo
- round( penWidthIn
* sin(M_PI_2
+ alpha
+ theta
) );
1773 PATH_AddEntry(pInsidePath
, &pt
, PT_LINETO
);
1774 /* Outside angle point */
1777 case PS_JOIN_MITER
:
1778 miterWidth
= fabs(penWidthOut
/ cos(M_PI_2
- fabs(alpha
) / 2));
1779 pt
.x
= xo
+ round( miterWidth
* cos(theta
+ alpha
/ 2) );
1780 pt
.y
= yo
+ round( miterWidth
* sin(theta
+ alpha
/ 2) );
1781 PATH_AddEntry(pOutsidePath
, &pt
, PT_LINETO
);
1783 case PS_JOIN_BEVEL
:
1786 pt
.x
= xo
+ round( penWidthOut
* cos(theta
+ M_PI_2
) );
1787 pt
.y
= yo
+ round( penWidthOut
* sin(theta
+ M_PI_2
) );
1791 pt
.x
= xo
- round( penWidthOut
* cos(theta
+ M_PI_2
) );
1792 pt
.y
= yo
- round( penWidthOut
* sin(theta
+ M_PI_2
) );
1794 PATH_AddEntry(pOutsidePath
, &pt
, PT_LINETO
);
1797 pt
.x
= xo
- round( penWidthOut
* cos(M_PI_2
+ alpha
+ theta
) );
1798 pt
.y
= yo
- round( penWidthOut
* sin(M_PI_2
+ alpha
+ theta
) );
1802 pt
.x
= xo
+ round( penWidthOut
* cos(M_PI_2
+ alpha
+ theta
) );
1803 pt
.y
= yo
+ round( penWidthOut
* sin(M_PI_2
+ alpha
+ theta
) );
1805 PATH_AddEntry(pOutsidePath
, &pt
, PT_LINETO
);
1807 case PS_JOIN_ROUND
:
1811 pt
.x
= xo
+ round( penWidthOut
* cos(theta
+ M_PI_2
) );
1812 pt
.y
= yo
+ round( penWidthOut
* sin(theta
+ M_PI_2
) );
1816 pt
.x
= xo
- round( penWidthOut
* cos(theta
+ M_PI_2
) );
1817 pt
.y
= yo
- round( penWidthOut
* sin(theta
+ M_PI_2
) );
1819 PATH_AddEntry(pOutsidePath
, &pt
, PT_BEZIERTO
);
1820 pt
.x
= xo
+ round( penWidthOut
* cos(theta
+ alpha
/ 2) );
1821 pt
.y
= yo
+ round( penWidthOut
* sin(theta
+ alpha
/ 2) );
1822 PATH_AddEntry(pOutsidePath
, &pt
, PT_BEZIERTO
);
1825 pt
.x
= xo
- round( penWidthOut
* cos(M_PI_2
+ alpha
+ theta
) );
1826 pt
.y
= yo
- round( penWidthOut
* sin(M_PI_2
+ alpha
+ theta
) );
1830 pt
.x
= xo
+ round( penWidthOut
* cos(M_PI_2
+ alpha
+ theta
) );
1831 pt
.y
= yo
+ round( penWidthOut
* sin(M_PI_2
+ alpha
+ theta
) );
1833 PATH_AddEntry(pOutsidePath
, &pt
, PT_BEZIERTO
);
1838 for(j
= 0; j
< pUpPath
->numEntriesUsed
; j
++)
1841 pt
.x
= pUpPath
->pPoints
[j
].x
;
1842 pt
.y
= pUpPath
->pPoints
[j
].y
;
1843 PATH_AddEntry(pNewPath
, &pt
, (j
== 0 ? PT_MOVETO
: PT_LINETO
));
1845 for(j
= 0; j
< pDownPath
->numEntriesUsed
; j
++)
1848 pt
.x
= pDownPath
->pPoints
[pDownPath
->numEntriesUsed
- j
- 1].x
;
1849 pt
.y
= pDownPath
->pPoints
[pDownPath
->numEntriesUsed
- j
- 1].y
;
1850 PATH_AddEntry(pNewPath
, &pt
, ( (j
== 0 && (pStrokes
[i
]->pFlags
[pStrokes
[i
]->numEntriesUsed
- 1] & PT_CLOSEFIGURE
)) ? PT_MOVETO
: PT_LINETO
));
1853 PATH_DestroyGdiPath(pStrokes
[i
]);
1854 ExFreePoolWithTag(pStrokes
[i
], TAG_PATH
);
1855 PATH_DestroyGdiPath(pUpPath
);
1856 ExFreePoolWithTag(pUpPath
, TAG_PATH
);
1857 PATH_DestroyGdiPath(pDownPath
);
1858 ExFreePoolWithTag(pDownPath
, TAG_PATH
);
1860 ExFreePoolWithTag(pStrokes
, TAG_PATH
);
1862 pNewPath
->state
= PATH_Closed
;
1863 if (!(ret
= PATH_AssignGdiPath(pPath
, pNewPath
)))
1864 DPRINT1("Assign path failed\n");
1865 PATH_DestroyGdiPath(pNewPath
);
1866 ExFreePoolWithTag(pNewPath
, TAG_PATH
);
1870 static inline INT
int_from_fixed(FIXED f
)
1872 return (f
.fract
>= 0x8000) ? (f
.value
+ 1) : f
.value
;
1875 /**********************************************************************
1878 * internally used by PATH_add_outline
1883 PATH_BezierTo(PPATH pPath
, POINT
*lppt
, INT n
)
1889 PATH_AddEntry(pPath
, &lppt
[1], PT_LINETO
);
1893 PATH_AddEntry(pPath
, &lppt
[0], PT_BEZIERTO
);
1894 PATH_AddEntry(pPath
, &lppt
[1], PT_BEZIERTO
);
1895 PATH_AddEntry(pPath
, &lppt
[2], PT_BEZIERTO
);
1909 pt
[2].x
= (lppt
[i
+2].x
+ lppt
[i
+1].x
) / 2;
1910 pt
[2].y
= (lppt
[i
+2].y
+ lppt
[i
+1].y
) / 2;
1911 PATH_BezierTo(pPath
, pt
, 3);
1919 PATH_BezierTo(pPath
, pt
, 3);
1926 PATH_add_outline(PDC dc
, INT x
, INT y
, TTPOLYGONHEADER
*header
, DWORD size
)
1929 TTPOLYGONHEADER
*start
;
1934 pPath
= PATH_LockPath(dc
->dclevel
.hPath
);
1939 while ((char *)header
< (char *)start
+ size
)
1943 if (header
->dwType
!= TT_POLYGON_TYPE
)
1945 DPRINT1("Unknown header type %d\n", header
->dwType
);
1949 pt
.x
= x
+ int_from_fixed(header
->pfxStart
.x
);
1950 pt
.y
= y
- int_from_fixed(header
->pfxStart
.y
);
1951 IntLPtoDP(dc
, &pt
, 1);
1952 PATH_AddEntry(pPath
, &pt
, PT_MOVETO
);
1954 curve
= (TTPOLYCURVE
*)(header
+ 1);
1956 while ((char *)curve
< (char *)header
+ header
->cb
)
1958 /*DPRINT1("curve->wType %d\n", curve->wType);*/
1960 switch(curve
->wType
)
1966 for (i
= 0; i
< curve
->cpfx
; i
++)
1968 pt
.x
= x
+ int_from_fixed(curve
->apfx
[i
].x
);
1969 pt
.y
= y
- int_from_fixed(curve
->apfx
[i
].y
);
1970 IntLPtoDP(dc
, &pt
, 1);
1971 PATH_AddEntry(pPath
, &pt
, PT_LINETO
);
1976 case TT_PRIM_QSPLINE
:
1977 case TT_PRIM_CSPLINE
:
1981 POINT
*pts
= ExAllocatePoolWithTag(PagedPool
, (curve
->cpfx
+ 1) * sizeof(POINT
), TAG_PATH
);
1983 if (!pts
) return FALSE
;
1985 ptfx
= *(POINTFX
*)((char *)curve
- sizeof(POINTFX
));
1987 pts
[0].x
= x
+ int_from_fixed(ptfx
.x
);
1988 pts
[0].y
= y
- int_from_fixed(ptfx
.y
);
1989 IntLPtoDP(dc
, &pts
[0], 1);
1991 for (i
= 0; i
< curve
->cpfx
; i
++)
1993 pts
[i
+ 1].x
= x
+ int_from_fixed(curve
->apfx
[i
].x
);
1994 pts
[i
+ 1].y
= y
- int_from_fixed(curve
->apfx
[i
].y
);
1995 IntLPtoDP(dc
, &pts
[i
+ 1], 1);
1998 PATH_BezierTo(pPath
, pts
, curve
->cpfx
+ 1);
2000 ExFreePoolWithTag(pts
, TAG_PATH
);
2005 DPRINT1("Unknown curve type %04x\n", curve
->wType
);
2009 curve
= (TTPOLYCURVE
*)&curve
->apfx
[curve
->cpfx
];
2011 header
= (TTPOLYGONHEADER
*)((char *)header
+ header
->cb
);
2014 IntGdiCloseFigure( pPath
);
2015 PATH_UnlockPath( pPath
);
2019 /**********************************************************************
2024 PATH_ExtTextOut(PDC dc
, INT x
, INT y
, UINT flags
, const RECTL
*lprc
,
2025 LPCWSTR str
, UINT count
, const INT
*dx
)
2028 double cosEsc
, sinEsc
;
2033 INT offset
= 0, xoff
= 0, yoff
= 0;
2035 if (!count
) return TRUE
;
2037 pdcattr
= dc
->pdcattr
;
2039 TextObj
= RealizeFontInit( pdcattr
->hlfntNew
);
2040 if ( !TextObj
) return FALSE
;
2042 FontGetObject( TextObj
, sizeof(lf
), &lf
);
2044 if (lf
.lfEscapement
!= 0)
2046 cosEsc
= cos(lf
.lfEscapement
* M_PI
/ 1800);
2047 sinEsc
= sin(lf
.lfEscapement
* M_PI
/ 1800);
2054 IntGdiGetDCOrg(dc
, &org
);
2056 for (idx
= 0; idx
< count
; idx
++)
2062 dwSize
= ftGdiGetGlyphOutline( dc
,
2064 GGO_GLYPH_INDEX
| GGO_NATIVE
,
2070 if (!dwSize
) return FALSE
;
2072 outline
= ExAllocatePoolWithTag(PagedPool
, dwSize
, TAG_PATH
);
2073 if (!outline
) return FALSE
;
2075 ftGdiGetGlyphOutline( dc
,
2077 GGO_GLYPH_INDEX
| GGO_NATIVE
,
2084 PATH_add_outline(dc
, org
.x
+ x
+ xoff
, org
.x
+ y
+ yoff
, outline
, dwSize
);
2086 ExFreePoolWithTag(outline
, TAG_PATH
);
2091 xoff
= offset
* cosEsc
;
2092 yoff
= offset
* -sinEsc
;
2096 xoff
+= gm
.gmCellIncX
;
2097 yoff
+= gm
.gmCellIncY
;
2104 /***********************************************************************
2105 * Exported functions
2110 NtGdiAbortPath(HDC hDC
)
2113 PDC dc
= DC_LockDc ( hDC
);
2116 SetLastWin32Error(ERROR_INVALID_HANDLE
);
2120 pPath
= PATH_LockPath(dc
->dclevel
.hPath
);
2126 PATH_EmptyPath(pPath
);
2128 PATH_UnlockPath(pPath
);
2135 NtGdiBeginPath( HDC hDC
)
2140 dc
= DC_LockDc ( hDC
);
2143 SetLastWin32Error(ERROR_INVALID_HANDLE
);
2147 /* If path is already open, do nothing. Check if not Save DC state */
2148 if ((dc
->dclevel
.flPath
& DCPATH_ACTIVE
) && !(dc
->dclevel
.flPath
& DCPATH_SAVE
))
2154 if ( dc
->dclevel
.hPath
)
2156 DPRINT1("BeginPath 1 0x%x\n", dc
->dclevel
.hPath
);
2157 if ( !(dc
->dclevel
.flPath
& DCPATH_SAVE
) )
2158 { // Remove previous handle.
2159 if (!PATH_Delete(dc
->dclevel
.hPath
))
2166 { // Clear flags and Handle.
2167 dc
->dclevel
.flPath
&= ~(DCPATH_SAVE
|DCPATH_ACTIVE
);
2168 dc
->dclevel
.hPath
= NULL
;
2171 pPath
= PATH_AllocPathWithHandle();
2174 SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY
);
2177 dc
->dclevel
.flPath
|= DCPATH_ACTIVE
; // Set active ASAP!
2179 dc
->dclevel
.hPath
= pPath
->BaseObject
.hHmgr
;
2181 DPRINT1("BeginPath 2 h 0x%x p 0x%x\n", dc
->dclevel
.hPath
, pPath
);
2182 // Path handles are shared. Also due to recursion with in the same thread.
2183 GDIOBJ_UnlockObjByPtr((POBJ
)pPath
); // Unlock
2184 pPath
= PATH_LockPath(dc
->dclevel
.hPath
); // Share Lock.
2186 /* Make sure that path is empty */
2187 PATH_EmptyPath( pPath
);
2189 /* Initialize variables for new path */
2190 pPath
->newStroke
= TRUE
;
2191 pPath
->state
= PATH_Open
;
2193 PATH_UnlockPath(pPath
);
2200 NtGdiCloseFigure(HDC hDC
)
2202 BOOL Ret
= FALSE
; // default to failure
2206 DPRINT("Enter %s\n", __FUNCTION__
);
2208 pDc
= DC_LockDc(hDC
);
2211 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2214 pPath
= PATH_LockPath( pDc
->dclevel
.hPath
);
2221 if (pPath
->state
==PATH_Open
)
2223 IntGdiCloseFigure(pPath
);
2228 // FIXME: check if lasterror is set correctly
2229 SetLastWin32Error(ERROR_CAN_NOT_COMPLETE
);
2232 PATH_UnlockPath( pPath
);
2239 NtGdiEndPath(HDC hDC
)
2243 PDC dc
= DC_LockDc ( hDC
);
2247 SetLastWin32Error(ERROR_INVALID_HANDLE
);
2251 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
2257 /* Check that path is currently being constructed */
2258 if ( (pPath
->state
!= PATH_Open
) || !(dc
->dclevel
.flPath
& DCPATH_ACTIVE
) )
2260 DPRINT1("EndPath ERROR! 0x%x\n", dc
->dclevel
.hPath
);
2261 SetLastWin32Error(ERROR_CAN_NOT_COMPLETE
);
2264 /* Set flag to indicate that path is finished */
2267 DPRINT1("EndPath 0x%x\n", dc
->dclevel
.hPath
);
2268 pPath
->state
= PATH_Closed
;
2269 dc
->dclevel
.flPath
&= ~DCPATH_ACTIVE
;
2271 PATH_UnlockPath( pPath
);
2278 NtGdiFillPath(HDC hDC
)
2283 PDC dc
= DC_LockDc ( hDC
);
2287 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2290 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
2297 pdcattr
= dc
->pdcattr
;
2299 if (pdcattr
->ulDirty_
& (DIRTY_LINE
| DC_PEN_DIRTY
))
2300 DC_vUpdateLineBrush(dc
);
2302 if (pdcattr
->ulDirty_
& (DIRTY_FILL
| DC_BRUSH_DIRTY
))
2303 DC_vUpdateFillBrush(dc
);
2305 ret
= PATH_FillPath( dc
, pPath
);
2308 /* FIXME: Should the path be emptied even if conversion
2310 PATH_EmptyPath( pPath
);
2313 PATH_UnlockPath( pPath
);
2320 NtGdiFlattenPath(HDC hDC
)
2326 DPRINT("Enter %s\n", __FUNCTION__
);
2328 pDc
= DC_LockDc(hDC
);
2331 SetLastWin32Error(ERROR_INVALID_HANDLE
);
2335 pPath
= PATH_LockPath( pDc
->dclevel
.hPath
);
2338 DC_UnlockDc ( pDc
);
2341 if (pPath
->state
== PATH_Open
)
2342 Ret
= PATH_FlattenPath(pPath
);
2344 PATH_UnlockPath( pPath
);
2358 NTSTATUS Status
= STATUS_SUCCESS
;
2360 if (!(pDc
= DC_LockDc(hdc
)))
2362 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2366 worker
.f
= pDc
->dclevel
.laPath
.eMiterLimit
;
2372 ProbeForWrite(pdwOut
,
2377 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
2379 Status
= _SEH2_GetExceptionCode();
2382 if (!NT_SUCCESS(Status
))
2384 SetLastNtError(Status
);
2406 DC
*dc
= DC_LockDc(hDC
);
2409 DPRINT1("Can't lock dc!\n");
2410 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2414 pPath
= PATH_LockPath( dc
->dclevel
.hPath
);
2421 if (pPath
->state
!= PATH_Closed
)
2423 SetLastWin32Error(ERROR_CAN_NOT_COMPLETE
);
2429 ret
= pPath
->numEntriesUsed
;
2431 else if(nSize
<pPath
->numEntriesUsed
)
2433 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2440 memcpy(Points
, pPath
->pPoints
, sizeof(POINT
)*pPath
->numEntriesUsed
);
2441 memcpy(Types
, pPath
->pFlags
, sizeof(BYTE
)*pPath
->numEntriesUsed
);
2443 /* Convert the points to logical coordinates */
2444 IntDPtoLP(dc
, Points
, pPath
->numEntriesUsed
);
2446 ret
= pPath
->numEntriesUsed
;
2448 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
2450 SetLastNtError(_SEH2_GetExceptionCode());
2456 PATH_UnlockPath( pPath
);
2463 NtGdiPathToRegion(HDC hDC
)
2470 DPRINT("Enter %s\n", __FUNCTION__
);
2472 pDc
= DC_LockDc(hDC
);
2475 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2479 pdcattr
= pDc
->pdcattr
;
2481 pPath
= PATH_LockPath( pDc
->dclevel
.hPath
);
2484 DC_UnlockDc ( pDc
);
2488 if (pPath
->state
!=PATH_Closed
)
2490 //FIXME: check that setlasterror is being called correctly
2491 SetLastWin32Error(ERROR_CAN_NOT_COMPLETE
);
2495 /* FIXME: Should we empty the path even if conversion failed? */
2496 if(PATH_PathToRegion(pPath
, pdcattr
->jFillMode
, &hrgnRval
))
2497 PATH_EmptyPath(pPath
);
2500 PATH_UnlockPath( pPath
);
2510 IN OUT OPTIONAL PDWORD pdwOut
)
2513 gxf_long worker
, worker1
;
2514 NTSTATUS Status
= STATUS_SUCCESS
;
2516 if (!(pDc
= DC_LockDc(hdc
)))
2518 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2523 worker1
.f
= pDc
->dclevel
.laPath
.eMiterLimit
;
2524 pDc
->dclevel
.laPath
.eMiterLimit
= worker
.f
;
2530 ProbeForWrite(pdwOut
,
2533 *pdwOut
= worker1
.l
;
2535 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
2537 Status
= _SEH2_GetExceptionCode();
2540 if (!NT_SUCCESS(Status
))
2542 SetLastNtError(Status
);
2554 NtGdiStrokeAndFillPath(HDC hDC
)
2561 DPRINT1("Enter %s\n", __FUNCTION__
);
2563 if (!(pDc
= DC_LockDc(hDC
)))
2565 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2568 pPath
= PATH_LockPath( pDc
->dclevel
.hPath
);
2571 DC_UnlockDc ( pDc
);
2575 pdcattr
= pDc
->pdcattr
;
2577 if (pdcattr
->ulDirty_
& (DIRTY_FILL
| DC_BRUSH_DIRTY
))
2578 DC_vUpdateFillBrush(pDc
);
2580 if (pdcattr
->ulDirty_
& (DIRTY_LINE
| DC_PEN_DIRTY
))
2581 DC_vUpdateLineBrush(pDc
);
2583 bRet
= PATH_FillPath(pDc
, pPath
);
2584 if (bRet
) bRet
= PATH_StrokePath(pDc
, pPath
);
2585 if (bRet
) PATH_EmptyPath(pPath
);
2587 PATH_UnlockPath( pPath
);
2594 NtGdiStrokePath(HDC hDC
)
2601 DPRINT("Enter %s\n", __FUNCTION__
);
2603 if (!(pDc
= DC_LockDc(hDC
)))
2605 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2608 pPath
= PATH_LockPath( pDc
->dclevel
.hPath
);
2611 DC_UnlockDc ( pDc
);
2615 pdcattr
= pDc
->pdcattr
;
2617 if (pdcattr
->ulDirty_
& (DIRTY_LINE
| DC_PEN_DIRTY
))
2618 DC_vUpdateLineBrush(pDc
);
2620 bRet
= PATH_StrokePath(pDc
, pPath
);
2621 PATH_EmptyPath(pPath
);
2623 PATH_UnlockPath( pPath
);
2630 NtGdiWidenPath(HDC hDC
)
2633 PDC pdc
= DC_LockDc ( hDC
);
2636 SetLastWin32Error(ERROR_INVALID_PARAMETER
);
2639 Ret
= PATH_WidenPath(pdc
);
2640 DC_UnlockDc ( pdc
);