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wine-wine/dlls/gdi32/path.c

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/*
* Graphics paths (BeginPath, EndPath etc.)
*
* Copyright 1997, 1998 Martin Boehme
* 1999 Huw D M Davies
* Copyright 2005 Dmitry Timoshkov
* Copyright 2011 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <math.h>
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#if defined(HAVE_FLOAT_H)
#include <float.h>
#endif
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winerror.h"
#include "gdi_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdi);
/* Notes on the implementation
*
* The implementation is based on dynamically resizable arrays of points and
* flags. I dithered for a bit before deciding on this implementation, and
* I had even done a bit of work on a linked list version before switching
* to arrays. It's a bit of a tradeoff. When you use linked lists, the
* implementation of FlattenPath is easier, because you can rip the
* PT_BEZIERTO entries out of the middle of the list and link the
* corresponding PT_LINETO entries in. However, when you use arrays,
* PathToRegion becomes easier, since you can essentially just pass your array
* of points to CreatePolyPolygonRgn. Also, if I'd used linked lists, I would
* have had the extra effort of creating a chunk-based allocation scheme
* in order to use memory effectively. That's why I finally decided to use
* arrays. Note by the way that the array based implementation has the same
* linear time complexity that linked lists would have since the arrays grow
* exponentially.
*
* The points are stored in the path in device coordinates. This is
* consistent with the way Windows does things (for instance, see the Win32
* SDK documentation for GetPath).
*
* The word "stroke" appears in several places (e.g. in the flag
* GdiPath.newStroke). A stroke consists of a PT_MOVETO followed by one or
* more PT_LINETOs or PT_BEZIERTOs, up to, but not including, the next
* PT_MOVETO. Note that this is not the same as the definition of a figure;
* a figure can contain several strokes.
*
* Martin Boehme
*/
#define NUM_ENTRIES_INITIAL 16 /* Initial size of points / flags arrays */
#define GROW_FACTOR_NUMER 2 /* Numerator of grow factor for the array */
#define GROW_FACTOR_DENOM 1 /* Denominator of grow factor */
/* A floating point version of the POINT structure */
typedef struct tagFLOAT_POINT
{
double x, y;
} FLOAT_POINT;
struct path_physdev
{
struct gdi_physdev dev;
GdiPath *path;
};
static inline struct path_physdev *get_path_physdev( PHYSDEV dev )
{
return (struct path_physdev *)dev;
}
static inline void pop_path_driver( DC *dc )
{
PHYSDEV dev = pop_dc_driver( &dc->physDev );
assert( dev->funcs == &path_driver );
HeapFree( GetProcessHeap(), 0, dev );
}
/* Performs a world-to-viewport transformation on the specified point (which
* is in floating point format).
*/
static inline void INTERNAL_LPTODP_FLOAT( HDC hdc, FLOAT_POINT *point, int count )
{
DC *dc = get_dc_ptr( hdc );
double x, y;
while (count--)
{
x = point->x;
y = point->y;
point->x = x * dc->xformWorld2Vport.eM11 + y * dc->xformWorld2Vport.eM21 + dc->xformWorld2Vport.eDx;
point->y = x * dc->xformWorld2Vport.eM12 + y * dc->xformWorld2Vport.eM22 + dc->xformWorld2Vport.eDy;
point++;
}
release_dc_ptr( dc );
}
static inline INT int_from_fixed(FIXED f)
{
return (f.fract >= 0x8000) ? (f.value + 1) : f.value;
}
/* PATH_EmptyPath
*
* Removes all entries from the path and sets the path state to PATH_Null.
*/
static void PATH_EmptyPath(GdiPath *pPath)
{
pPath->state=PATH_Null;
pPath->numEntriesUsed=0;
}
/* PATH_ReserveEntries
*
* Ensures that at least "numEntries" entries (for points and flags) have
* been allocated; allocates larger arrays and copies the existing entries
* to those arrays, if necessary. Returns TRUE if successful, else FALSE.
*/
static BOOL PATH_ReserveEntries(GdiPath *pPath, INT numEntries)
{
INT numEntriesToAllocate;
POINT *pPointsNew;
BYTE *pFlagsNew;
assert(numEntries>=0);
/* Do we have to allocate more memory? */
if(numEntries > pPath->numEntriesAllocated)
{
/* Find number of entries to allocate. We let the size of the array
* grow exponentially, since that will guarantee linear time
* complexity. */
if(pPath->numEntriesAllocated)
{
numEntriesToAllocate=pPath->numEntriesAllocated;
while(numEntriesToAllocate<numEntries)
numEntriesToAllocate=numEntriesToAllocate*GROW_FACTOR_NUMER/
GROW_FACTOR_DENOM;
}
else
numEntriesToAllocate=numEntries;
/* Allocate new arrays */
pPointsNew=HeapAlloc( GetProcessHeap(), 0, numEntriesToAllocate * sizeof(POINT) );
if(!pPointsNew)
return FALSE;
pFlagsNew=HeapAlloc( GetProcessHeap(), 0, numEntriesToAllocate * sizeof(BYTE) );
if(!pFlagsNew)
{
HeapFree( GetProcessHeap(), 0, pPointsNew );
return FALSE;
}
/* Copy old arrays to new arrays and discard old arrays */
if(pPath->pPoints)
{
assert(pPath->pFlags);
memcpy(pPointsNew, pPath->pPoints,
sizeof(POINT)*pPath->numEntriesUsed);
memcpy(pFlagsNew, pPath->pFlags,
sizeof(BYTE)*pPath->numEntriesUsed);
HeapFree( GetProcessHeap(), 0, pPath->pPoints );
HeapFree( GetProcessHeap(), 0, pPath->pFlags );
}
pPath->pPoints=pPointsNew;
pPath->pFlags=pFlagsNew;
pPath->numEntriesAllocated=numEntriesToAllocate;
}
return TRUE;
}
/* PATH_AddEntry
*
* Adds an entry to the path. For "flags", pass either PT_MOVETO, PT_LINETO
* or PT_BEZIERTO, optionally ORed with PT_CLOSEFIGURE. Returns TRUE if
* successful, FALSE otherwise (e.g. if not enough memory was available).
*/
static BOOL PATH_AddEntry(GdiPath *pPath, const POINT *pPoint, BYTE flags)
{
/* FIXME: If newStroke is true, perhaps we want to check that we're
* getting a PT_MOVETO
*/
TRACE("(%d,%d) - %d\n", pPoint->x, pPoint->y, flags);
/* Check that path is open */
if(pPath->state!=PATH_Open)
return FALSE;
/* Reserve enough memory for an extra path entry */
if(!PATH_ReserveEntries(pPath, pPath->numEntriesUsed+1))
return FALSE;
/* Store information in path entry */
pPath->pPoints[pPath->numEntriesUsed]=*pPoint;
pPath->pFlags[pPath->numEntriesUsed]=flags;
pPath->numEntriesUsed++;
return TRUE;
}
/* add a number of points, converting them to device coords */
/* return a pointer to the first type byte so it can be fixed up if necessary */
static BYTE *add_log_points( struct path_physdev *physdev, const POINT *points, DWORD count, BYTE type )
{
BYTE *ret;
GdiPath *path = physdev->path;
if (!PATH_ReserveEntries( path, path->numEntriesUsed + count )) return NULL;
ret = &path->pFlags[path->numEntriesUsed];
memcpy( &path->pPoints[path->numEntriesUsed], points, count * sizeof(*points) );
LPtoDP( physdev->dev.hdc, &path->pPoints[path->numEntriesUsed], count );
memset( ret, type, count );
path->numEntriesUsed += count;
return ret;
}
/* start a new path stroke if necessary */
static BOOL start_new_stroke( struct path_physdev *physdev )
{
POINT pos;
GdiPath *path = physdev->path;
if (!path->newStroke && path->numEntriesUsed &&
!(path->pFlags[path->numEntriesUsed - 1] & PT_CLOSEFIGURE))
return TRUE;
path->newStroke = FALSE;
GetCurrentPositionEx( physdev->dev.hdc, &pos );
return add_log_points( physdev, &pos, 1, PT_MOVETO ) != NULL;
}
/* PATH_AssignGdiPath
*
* Copies the GdiPath structure "pPathSrc" to "pPathDest". A deep copy is
* performed, i.e. the contents of the pPoints and pFlags arrays are copied,
* not just the pointers. Since this means that the arrays in pPathDest may
* need to be resized, pPathDest should have been initialized using
* PATH_InitGdiPath (in C++, this function would be an assignment operator,
* not a copy constructor).
* Returns TRUE if successful, else FALSE.
*/
static BOOL PATH_AssignGdiPath(GdiPath *pPathDest, const GdiPath *pPathSrc)
{
/* Make sure destination arrays are big enough */
if(!PATH_ReserveEntries(pPathDest, pPathSrc->numEntriesUsed))
return FALSE;
/* Perform the copy operation */
memcpy(pPathDest->pPoints, pPathSrc->pPoints,
sizeof(POINT)*pPathSrc->numEntriesUsed);
memcpy(pPathDest->pFlags, pPathSrc->pFlags,
sizeof(BYTE)*pPathSrc->numEntriesUsed);
pPathDest->state=pPathSrc->state;
pPathDest->numEntriesUsed=pPathSrc->numEntriesUsed;
pPathDest->newStroke=pPathSrc->newStroke;
return TRUE;
}
/* PATH_CheckCorners
*
* Helper function for RoundRect() and Rectangle()
*/
static void PATH_CheckCorners( HDC hdc, POINT corners[], INT x1, INT y1, INT x2, INT y2 )
{
INT temp;
/* Convert points to device coordinates */
corners[0].x=x1;
corners[0].y=y1;
corners[1].x=x2;
corners[1].y=y2;
LPtoDP( hdc, corners, 2 );
/* Make sure first corner is top left and second corner is bottom right */
if(corners[0].x>corners[1].x)
{
temp=corners[0].x;
corners[0].x=corners[1].x;
corners[1].x=temp;
}
if(corners[0].y>corners[1].y)
{
temp=corners[0].y;
corners[0].y=corners[1].y;
corners[1].y=temp;
}
/* In GM_COMPATIBLE, don't include bottom and right edges */
if (GetGraphicsMode( hdc ) == GM_COMPATIBLE)
{
corners[1].x--;
corners[1].y--;
}
}
/* PATH_AddFlatBezier
*/
static BOOL PATH_AddFlatBezier(GdiPath *pPath, POINT *pt, BOOL closed)
{
POINT *pts;
INT no, i;
pts = GDI_Bezier( pt, 4, &no );
if(!pts) return FALSE;
for(i = 1; i < no; i++)
PATH_AddEntry(pPath, &pts[i], (i == no-1 && closed) ? PT_LINETO | PT_CLOSEFIGURE : PT_LINETO);
HeapFree( GetProcessHeap(), 0, pts );
return TRUE;
}
/* PATH_FlattenPath
*
* Replaces Beziers with line segments
*
*/
static BOOL PATH_FlattenPath(GdiPath *pPath)
{
GdiPath newPath;
INT srcpt;
memset(&newPath, 0, sizeof(newPath));
newPath.state = PATH_Open;
for(srcpt = 0; srcpt < pPath->numEntriesUsed; srcpt++) {
switch(pPath->pFlags[srcpt] & ~PT_CLOSEFIGURE) {
case PT_MOVETO:
case PT_LINETO:
PATH_AddEntry(&newPath, &pPath->pPoints[srcpt],
pPath->pFlags[srcpt]);
break;
case PT_BEZIERTO:
PATH_AddFlatBezier(&newPath, &pPath->pPoints[srcpt-1],
pPath->pFlags[srcpt+2] & PT_CLOSEFIGURE);
srcpt += 2;
break;
}
}
newPath.state = PATH_Closed;
PATH_AssignGdiPath(pPath, &newPath);
PATH_DestroyGdiPath(&newPath);
return TRUE;
}
/* PATH_PathToRegion
*
* Creates a region from the specified path using the specified polygon
* filling mode. The path is left unchanged. A handle to the region that
* was created is stored in *pHrgn. If successful, TRUE is returned; if an
* error occurs, SetLastError is called with the appropriate value and
* FALSE is returned.
*/
static BOOL PATH_PathToRegion(GdiPath *pPath, INT nPolyFillMode,
HRGN *pHrgn)
{
int numStrokes, iStroke, i;
INT *pNumPointsInStroke;
HRGN hrgn;
PATH_FlattenPath(pPath);
/* FIXME: What happens when number of points is zero? */
/* First pass: Find out how many strokes there are in the path */
/* FIXME: We could eliminate this with some bookkeeping in GdiPath */
numStrokes=0;
for(i=0; i<pPath->numEntriesUsed; i++)
if((pPath->pFlags[i] & ~PT_CLOSEFIGURE) == PT_MOVETO)
numStrokes++;
/* Allocate memory for number-of-points-in-stroke array */
pNumPointsInStroke=HeapAlloc( GetProcessHeap(), 0, sizeof(int) * numStrokes );
if(!pNumPointsInStroke)
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return FALSE;
}
/* Second pass: remember number of points in each polygon */
iStroke=-1; /* Will get incremented to 0 at beginning of first stroke */
for(i=0; i<pPath->numEntriesUsed; i++)
{
/* Is this the beginning of a new stroke? */
if((pPath->pFlags[i] & ~PT_CLOSEFIGURE) == PT_MOVETO)
{
iStroke++;
pNumPointsInStroke[iStroke]=0;
}
pNumPointsInStroke[iStroke]++;
}
/* Create a region from the strokes */
hrgn=CreatePolyPolygonRgn(pPath->pPoints, pNumPointsInStroke,
numStrokes, nPolyFillMode);
/* Free memory for number-of-points-in-stroke array */
HeapFree( GetProcessHeap(), 0, pNumPointsInStroke );
if(hrgn==NULL)
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return FALSE;
}
/* Success! */
*pHrgn=hrgn;
return TRUE;
}
/* PATH_ScaleNormalizedPoint
*
* Scales a normalized point (x, y) with respect to the box whose corners are
* passed in "corners". The point is stored in "*pPoint". The normalized
* coordinates (-1.0, -1.0) correspond to corners[0], the coordinates
* (1.0, 1.0) correspond to corners[1].
*/
static void PATH_ScaleNormalizedPoint(FLOAT_POINT corners[], double x,
double y, POINT *pPoint)
{
pPoint->x=GDI_ROUND( (double)corners[0].x + (double)(corners[1].x-corners[0].x)*0.5*(x+1.0) );
pPoint->y=GDI_ROUND( (double)corners[0].y + (double)(corners[1].y-corners[0].y)*0.5*(y+1.0) );
}
/* PATH_NormalizePoint
*
* Normalizes a point with respect to the box whose corners are passed in
* "corners". The normalized coordinates are stored in "*pX" and "*pY".
*/
static void PATH_NormalizePoint(FLOAT_POINT corners[],
const FLOAT_POINT *pPoint,
double *pX, double *pY)
{
*pX=(double)(pPoint->x-corners[0].x)/(double)(corners[1].x-corners[0].x) * 2.0 - 1.0;
*pY=(double)(pPoint->y-corners[0].y)/(double)(corners[1].y-corners[0].y) * 2.0 - 1.0;
}
/* PATH_DoArcPart
*
* Creates a Bezier spline that corresponds to part of an arc and appends the
* corresponding points to the path. The start and end angles are passed in
* "angleStart" and "angleEnd"; these angles should span a quarter circle
* at most. If "startEntryType" is non-zero, an entry of that type for the first
* control point is added to the path; otherwise, it is assumed that the current
* position is equal to the first control point.
*/
static BOOL PATH_DoArcPart(GdiPath *pPath, FLOAT_POINT corners[],
double angleStart, double angleEnd, BYTE startEntryType)
{
double halfAngle, a;
double xNorm[4], yNorm[4];
POINT point;
int i;
assert(fabs(angleEnd-angleStart)<=M_PI_2);
/* FIXME: Is there an easier way of computing this? */
/* Compute control points */
halfAngle=(angleEnd-angleStart)/2.0;
if(fabs(halfAngle)>1e-8)
{
a=4.0/3.0*(1-cos(halfAngle))/sin(halfAngle);
xNorm[0]=cos(angleStart);
yNorm[0]=sin(angleStart);
xNorm[1]=xNorm[0] - a*yNorm[0];
yNorm[1]=yNorm[0] + a*xNorm[0];
xNorm[3]=cos(angleEnd);
yNorm[3]=sin(angleEnd);
xNorm[2]=xNorm[3] + a*yNorm[3];
yNorm[2]=yNorm[3] - a*xNorm[3];
}
else
for(i=0; i<4; i++)
{
xNorm[i]=cos(angleStart);
yNorm[i]=sin(angleStart);
}
/* Add starting point to path if desired */
if(startEntryType)
{
PATH_ScaleNormalizedPoint(corners, xNorm[0], yNorm[0], &point);
if(!PATH_AddEntry(pPath, &point, startEntryType))
return FALSE;
}
/* Add remaining control points */
for(i=1; i<4; i++)
{
PATH_ScaleNormalizedPoint(corners, xNorm[i], yNorm[i], &point);
if(!PATH_AddEntry(pPath, &point, PT_BEZIERTO))
return FALSE;
}
return TRUE;
}
/***********************************************************************
* BeginPath (GDI32.@)
*/
BOOL WINAPI BeginPath(HDC hdc)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pBeginPath );
ret = physdev->funcs->pBeginPath( physdev );
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* EndPath (GDI32.@)
*/
BOOL WINAPI EndPath(HDC hdc)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pEndPath );
ret = physdev->funcs->pEndPath( physdev );
release_dc_ptr( dc );
}
return ret;
}
/******************************************************************************
* AbortPath [GDI32.@]
* Closes and discards paths from device context
*
* NOTES
* Check that SetLastError is being called correctly
*
* PARAMS
* hdc [I] Handle to device context
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI AbortPath( HDC hdc )
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pAbortPath );
ret = physdev->funcs->pAbortPath( physdev );
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* CloseFigure (GDI32.@)
*
* FIXME: Check that SetLastError is being called correctly
*/
BOOL WINAPI CloseFigure(HDC hdc)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pCloseFigure );
ret = physdev->funcs->pCloseFigure( physdev );
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* GetPath (GDI32.@)
*/
INT WINAPI GetPath(HDC hdc, LPPOINT pPoints, LPBYTE pTypes,
INT nSize)
{
INT ret = -1;
GdiPath *pPath;
DC *dc = get_dc_ptr( hdc );
if(!dc) return -1;
pPath = &dc->path;
/* Check that path is closed */
if(pPath->state!=PATH_Closed)
{
SetLastError(ERROR_CAN_NOT_COMPLETE);
goto done;
}
if(nSize==0)
ret = pPath->numEntriesUsed;
else if(nSize<pPath->numEntriesUsed)
{
SetLastError(ERROR_INVALID_PARAMETER);
goto done;
}
else
{
memcpy(pPoints, pPath->pPoints, sizeof(POINT)*pPath->numEntriesUsed);
memcpy(pTypes, pPath->pFlags, sizeof(BYTE)*pPath->numEntriesUsed);
/* Convert the points to logical coordinates */
if(!DPtoLP(hdc, pPoints, pPath->numEntriesUsed))
{
/* FIXME: Is this the correct value? */
SetLastError(ERROR_CAN_NOT_COMPLETE);
goto done;
}
else ret = pPath->numEntriesUsed;
}
done:
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* PathToRegion (GDI32.@)
*
* FIXME
* Check that SetLastError is being called correctly
*
* The documentation does not state this explicitly, but a test under Windows
* shows that the region which is returned should be in device coordinates.
*/
HRGN WINAPI PathToRegion(HDC hdc)
{
GdiPath *pPath;
HRGN hrgnRval = 0;
DC *dc = get_dc_ptr( hdc );
/* Get pointer to path */
if(!dc) return 0;
pPath = &dc->path;
/* Check that path is closed */
if(pPath->state!=PATH_Closed) SetLastError(ERROR_CAN_NOT_COMPLETE);
else
{
/* FIXME: Should we empty the path even if conversion failed? */
if(PATH_PathToRegion(pPath, GetPolyFillMode(hdc), &hrgnRval))
PATH_EmptyPath(pPath);
else
hrgnRval=0;
}
release_dc_ptr( dc );
return hrgnRval;
}
static BOOL PATH_FillPath( HDC hdc, GdiPath *pPath )
{
INT mapMode, graphicsMode;
SIZE ptViewportExt, ptWindowExt;
POINT ptViewportOrg, ptWindowOrg;
XFORM xform;
HRGN hrgn;
/* Construct a region from the path and fill it */
if(PATH_PathToRegion(pPath, GetPolyFillMode(hdc), &hrgn))
{
/* Since PaintRgn interprets the region as being in logical coordinates
* but the points we store for the path are already in device
* coordinates, we have to set the mapping mode to MM_TEXT temporarily.
* Using SaveDC to save information about the mapping mode / world
* transform would be easier but would require more overhead, especially
* now that SaveDC saves the current path.
*/
/* Save the information about the old mapping mode */
mapMode=GetMapMode(hdc);
GetViewportExtEx(hdc, &ptViewportExt);
GetViewportOrgEx(hdc, &ptViewportOrg);
GetWindowExtEx(hdc, &ptWindowExt);
GetWindowOrgEx(hdc, &ptWindowOrg);
/* Save world transform
* NB: The Windows documentation on world transforms would lead one to
* believe that this has to be done only in GM_ADVANCED; however, my
* tests show that resetting the graphics mode to GM_COMPATIBLE does
* not reset the world transform.
*/
GetWorldTransform(hdc, &xform);
/* Set MM_TEXT */
SetMapMode(hdc, MM_TEXT);
SetViewportOrgEx(hdc, 0, 0, NULL);
SetWindowOrgEx(hdc, 0, 0, NULL);
graphicsMode=GetGraphicsMode(hdc);
SetGraphicsMode(hdc, GM_ADVANCED);
ModifyWorldTransform(hdc, &xform, MWT_IDENTITY);
SetGraphicsMode(hdc, graphicsMode);
/* Paint the region */
PaintRgn(hdc, hrgn);
DeleteObject(hrgn);
/* Restore the old mapping mode */
SetMapMode(hdc, mapMode);
SetViewportExtEx(hdc, ptViewportExt.cx, ptViewportExt.cy, NULL);
SetViewportOrgEx(hdc, ptViewportOrg.x, ptViewportOrg.y, NULL);
SetWindowExtEx(hdc, ptWindowExt.cx, ptWindowExt.cy, NULL);
SetWindowOrgEx(hdc, ptWindowOrg.x, ptWindowOrg.y, NULL);
/* Go to GM_ADVANCED temporarily to restore the world transform */
graphicsMode=GetGraphicsMode(hdc);
SetGraphicsMode(hdc, GM_ADVANCED);
SetWorldTransform(hdc, &xform);
SetGraphicsMode(hdc, graphicsMode);
return TRUE;
}
return FALSE;
}
/***********************************************************************
* FillPath (GDI32.@)
*
* FIXME
* Check that SetLastError is being called correctly
*/
BOOL WINAPI FillPath(HDC hdc)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pFillPath );
ret = physdev->funcs->pFillPath( physdev );
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SelectClipPath (GDI32.@)
* FIXME
* Check that SetLastError is being called correctly
*/
BOOL WINAPI SelectClipPath(HDC hdc, INT iMode)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSelectClipPath );
ret = physdev->funcs->pSelectClipPath( physdev, iMode );
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* pathdrv_BeginPath
*/
static BOOL pathdrv_BeginPath( PHYSDEV dev )
{
/* path already open, nothing to do */
return TRUE;
}
/***********************************************************************
* pathdrv_AbortPath
*/
static BOOL pathdrv_AbortPath( PHYSDEV dev )
{
DC *dc = get_dc_ptr( dev->hdc );
if (!dc) return FALSE;
PATH_EmptyPath( &dc->path );
pop_path_driver( dc );
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* pathdrv_EndPath
*/
static BOOL pathdrv_EndPath( PHYSDEV dev )
{
DC *dc = get_dc_ptr( dev->hdc );
if (!dc) return FALSE;
dc->path.state = PATH_Closed;
pop_path_driver( dc );
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* pathdrv_CreateDC
*/
static BOOL pathdrv_CreateDC( PHYSDEV *dev, LPCWSTR driver, LPCWSTR device,
LPCWSTR output, const DEVMODEW *devmode )
{
struct path_physdev *physdev = HeapAlloc( GetProcessHeap(), 0, sizeof(*physdev) );
DC *dc;
if (!physdev) return FALSE;
dc = get_dc_ptr( (*dev)->hdc );
physdev->path = &dc->path;
push_dc_driver( dev, &physdev->dev, &path_driver );
release_dc_ptr( dc );
return TRUE;
}
/*************************************************************
* pathdrv_DeleteDC
*/
static BOOL pathdrv_DeleteDC( PHYSDEV dev )
{
assert( 0 ); /* should never be called */
return TRUE;
}
/* PATH_InitGdiPath
*
* Initializes the GdiPath structure.
*/
void PATH_InitGdiPath(GdiPath *pPath)
{
assert(pPath!=NULL);
pPath->state=PATH_Null;
pPath->pPoints=NULL;
pPath->pFlags=NULL;
pPath->numEntriesUsed=0;
pPath->numEntriesAllocated=0;
}
/* PATH_DestroyGdiPath
*
* Destroys a GdiPath structure (frees the memory in the arrays).
*/
void PATH_DestroyGdiPath(GdiPath *pPath)
{
assert(pPath!=NULL);
HeapFree( GetProcessHeap(), 0, pPath->pPoints );
HeapFree( GetProcessHeap(), 0, pPath->pFlags );
}
BOOL PATH_SavePath( DC *dst, DC *src )
{
PATH_InitGdiPath( &dst->path );
return PATH_AssignGdiPath( &dst->path, &src->path );
}
BOOL PATH_RestorePath( DC *dst, DC *src )
{
BOOL ret;
if (src->path.state == PATH_Open && dst->path.state != PATH_Open)
{
if (!path_driver.pCreateDC( &dst->physDev, NULL, NULL, NULL, NULL )) return FALSE;
ret = PATH_AssignGdiPath( &dst->path, &src->path );
if (!ret) pop_path_driver( dst );
}
else if (src->path.state != PATH_Open && dst->path.state == PATH_Open)
{
ret = PATH_AssignGdiPath( &dst->path, &src->path );
if (ret) pop_path_driver( dst );
}
else ret = PATH_AssignGdiPath( &dst->path, &src->path );
return ret;
}
/*************************************************************
* pathdrv_MoveTo
*/
static BOOL pathdrv_MoveTo( PHYSDEV dev, INT x, INT y )
{
struct path_physdev *physdev = get_path_physdev( dev );
physdev->path->newStroke = TRUE;
return TRUE;
}
/*************************************************************
* pathdrv_LineTo
*/
static BOOL pathdrv_LineTo( PHYSDEV dev, INT x, INT y )
{
struct path_physdev *physdev = get_path_physdev( dev );
POINT point;
if (!start_new_stroke( physdev )) return FALSE;
point.x = x;
point.y = y;
return add_log_points( physdev, &point, 1, PT_LINETO ) != NULL;
}
/*************************************************************
* pathdrv_RoundRect
*
* FIXME: it adds the same entries to the path as windows does, but there
* is an error in the bezier drawing code so that there are small pixel-size
* gaps when the resulting path is drawn by StrokePath()
*/
static BOOL pathdrv_RoundRect( PHYSDEV dev, INT x1, INT y1, INT x2, INT y2, INT ell_width, INT ell_height )
{
struct path_physdev *physdev = get_path_physdev( dev );
POINT corners[2], pointTemp;
FLOAT_POINT ellCorners[2];
PATH_CheckCorners(dev->hdc,corners,x1,y1,x2,y2);
/* Add points to the roundrect path */
ellCorners[0].x = corners[1].x-ell_width;
ellCorners[0].y = corners[0].y;
ellCorners[1].x = corners[1].x;
ellCorners[1].y = corners[0].y+ell_height;
if(!PATH_DoArcPart(physdev->path, ellCorners, 0, -M_PI_2, PT_MOVETO))
return FALSE;
pointTemp.x = corners[0].x+ell_width/2;
pointTemp.y = corners[0].y;
if(!PATH_AddEntry(physdev->path, &pointTemp, PT_LINETO))
return FALSE;
ellCorners[0].x = corners[0].x;
ellCorners[1].x = corners[0].x+ell_width;
if(!PATH_DoArcPart(physdev->path, ellCorners, -M_PI_2, -M_PI, FALSE))
return FALSE;
pointTemp.x = corners[0].x;
pointTemp.y = corners[1].y-ell_height/2;
if(!PATH_AddEntry(physdev->path, &pointTemp, PT_LINETO))
return FALSE;
ellCorners[0].y = corners[1].y-ell_height;
ellCorners[1].y = corners[1].y;
if(!PATH_DoArcPart(physdev->path, ellCorners, M_PI, M_PI_2, FALSE))
return FALSE;
pointTemp.x = corners[1].x-ell_width/2;
pointTemp.y = corners[1].y;
if(!PATH_AddEntry(physdev->path, &pointTemp, PT_LINETO))
return FALSE;
ellCorners[0].x = corners[1].x-ell_width;
ellCorners[1].x = corners[1].x;
if(!PATH_DoArcPart(physdev->path, ellCorners, M_PI_2, 0, FALSE))
return FALSE;
/* Close the roundrect figure */
return CloseFigure( dev->hdc );
}
/*************************************************************
* pathdrv_Rectangle
*/
static BOOL pathdrv_Rectangle( PHYSDEV dev, INT x1, INT y1, INT x2, INT y2 )
{
struct path_physdev *physdev = get_path_physdev( dev );
POINT corners[2], pointTemp;
PATH_CheckCorners(dev->hdc,corners,x1,y1,x2,y2);
/* Add four points to the path */
pointTemp.x=corners[1].x;
pointTemp.y=corners[0].y;
if(!PATH_AddEntry(physdev->path, &pointTemp, PT_MOVETO))
return FALSE;
if(!PATH_AddEntry(physdev->path, corners, PT_LINETO))
return FALSE;
pointTemp.x=corners[0].x;
pointTemp.y=corners[1].y;
if(!PATH_AddEntry(physdev->path, &pointTemp, PT_LINETO))
return FALSE;
if(!PATH_AddEntry(physdev->path, corners+1, PT_LINETO))
return FALSE;
/* Close the rectangle figure */
return CloseFigure( dev->hdc );
}
/* PATH_Arc
*
* Should be called when a call to Arc is performed on a DC that has
* an open path. This adds up to five Bezier splines representing the arc
* to the path. When 'lines' is 1, we add 1 extra line to get a chord,
* when 'lines' is 2, we add 2 extra lines to get a pie, and when 'lines' is
* -1 we add 1 extra line from the current DC position to the starting position
* of the arc before drawing the arc itself (arcto). Returns TRUE if successful,
* else FALSE.
*/
static BOOL PATH_Arc( PHYSDEV dev, INT x1, INT y1, INT x2, INT y2,
INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines )
{
struct path_physdev *physdev = get_path_physdev( dev );
double angleStart, angleEnd, angleStartQuadrant, angleEndQuadrant=0.0;
/* Initialize angleEndQuadrant to silence gcc's warning */
double x, y;
FLOAT_POINT corners[2], pointStart, pointEnd;
POINT centre;
BOOL start, end;
INT temp, direction = GetArcDirection(dev->hdc);
/* FIXME: Do we have to respect newStroke? */
/* Check for zero height / width */
/* FIXME: Only in GM_COMPATIBLE? */
if(x1==x2 || y1==y2)
return TRUE;
/* Convert points to device coordinates */
corners[0].x = x1;
corners[0].y = y1;
corners[1].x = x2;
corners[1].y = y2;
pointStart.x = xStart;
pointStart.y = yStart;
pointEnd.x = xEnd;
pointEnd.y = yEnd;
INTERNAL_LPTODP_FLOAT(dev->hdc, corners, 2);
INTERNAL_LPTODP_FLOAT(dev->hdc, &pointStart, 1);
INTERNAL_LPTODP_FLOAT(dev->hdc, &pointEnd, 1);
/* Make sure first corner is top left and second corner is bottom right */
if(corners[0].x>corners[1].x)
{
temp=corners[0].x;
corners[0].x=corners[1].x;
corners[1].x=temp;
}
if(corners[0].y>corners[1].y)
{
temp=corners[0].y;
corners[0].y=corners[1].y;
corners[1].y=temp;
}
/* Compute start and end angle */
PATH_NormalizePoint(corners, &pointStart, &x, &y);
angleStart=atan2(y, x);
PATH_NormalizePoint(corners, &pointEnd, &x, &y);
angleEnd=atan2(y, x);
/* Make sure the end angle is "on the right side" of the start angle */
if (direction == AD_CLOCKWISE)
{
if(angleEnd<=angleStart)
{
angleEnd+=2*M_PI;
assert(angleEnd>=angleStart);
}
}
else
{
if(angleEnd>=angleStart)
{
angleEnd-=2*M_PI;
assert(angleEnd<=angleStart);
}
}
/* In GM_COMPATIBLE, don't include bottom and right edges */
if (GetGraphicsMode(dev->hdc) == GM_COMPATIBLE)
{
corners[1].x--;
corners[1].y--;
}
/* arcto: Add a PT_MOVETO only if this is the first entry in a stroke */
if (lines==-1 && !start_new_stroke( physdev )) return FALSE;
/* Add the arc to the path with one Bezier spline per quadrant that the
* arc spans */
start=TRUE;
end=FALSE;
do
{
/* Determine the start and end angles for this quadrant */
if(start)
{
angleStartQuadrant=angleStart;
if (direction == AD_CLOCKWISE)
angleEndQuadrant=(floor(angleStart/M_PI_2)+1.0)*M_PI_2;
else
angleEndQuadrant=(ceil(angleStart/M_PI_2)-1.0)*M_PI_2;
}
else
{
angleStartQuadrant=angleEndQuadrant;
if (direction == AD_CLOCKWISE)
angleEndQuadrant+=M_PI_2;
else
angleEndQuadrant-=M_PI_2;
}
/* Have we reached the last part of the arc? */
if((direction == AD_CLOCKWISE && angleEnd<angleEndQuadrant) ||
(direction == AD_COUNTERCLOCKWISE && angleEnd>angleEndQuadrant))
{
/* Adjust the end angle for this quadrant */
angleEndQuadrant=angleEnd;
end=TRUE;
}
/* Add the Bezier spline to the path */
PATH_DoArcPart(physdev->path, corners, angleStartQuadrant, angleEndQuadrant,
start ? (lines==-1 ? PT_LINETO : PT_MOVETO) : FALSE);
start=FALSE;
} while(!end);
/* chord: close figure. pie: add line and close figure */
if(lines==1)
{
return CloseFigure(dev->hdc);
}
else if(lines==2)
{
centre.x = (corners[0].x+corners[1].x)/2;
centre.y = (corners[0].y+corners[1].y)/2;
if(!PATH_AddEntry(physdev->path, &centre, PT_LINETO | PT_CLOSEFIGURE))
return FALSE;
}
return TRUE;
}
/*************************************************************
* pathdrv_AngleArc
*/
static BOOL pathdrv_AngleArc( PHYSDEV dev, INT x, INT y, DWORD radius, FLOAT eStartAngle, FLOAT eSweepAngle)
{
INT x1, y1, x2, y2, arcdir;
BOOL ret;
x1 = GDI_ROUND( x + cos(eStartAngle*M_PI/180) * radius );
y1 = GDI_ROUND( y - sin(eStartAngle*M_PI/180) * radius );
x2 = GDI_ROUND( x + cos((eStartAngle+eSweepAngle)*M_PI/180) * radius );
y2 = GDI_ROUND( y - sin((eStartAngle+eSweepAngle)*M_PI/180) * radius );
arcdir = SetArcDirection( dev->hdc, eSweepAngle >= 0 ? AD_COUNTERCLOCKWISE : AD_CLOCKWISE);
ret = PATH_Arc( dev, x-radius, y-radius, x+radius, y+radius, x1, y1, x2, y2, -1 );
SetArcDirection( dev->hdc, arcdir );
return ret;
}
/*************************************************************
* pathdrv_Arc
*/
static BOOL pathdrv_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return PATH_Arc( dev, left, top, right, bottom, xstart, ystart, xend, yend, 0 );
}
/*************************************************************
* pathdrv_ArcTo
*/
static BOOL pathdrv_ArcTo( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return PATH_Arc( dev, left, top, right, bottom, xstart, ystart, xend, yend, -1 );
}
/*************************************************************
* pathdrv_Chord
*/
static BOOL pathdrv_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return PATH_Arc( dev, left, top, right, bottom, xstart, ystart, xend, yend, 1);
}
/*************************************************************
* pathdrv_Pie
*/
static BOOL pathdrv_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return PATH_Arc( dev, left, top, right, bottom, xstart, ystart, xend, yend, 2 );
}
/*************************************************************
* pathdrv_Ellipse
*/
static BOOL pathdrv_Ellipse( PHYSDEV dev, INT x1, INT y1, INT x2, INT y2 )
{
return PATH_Arc( dev, x1, y1, x2, y2, x1, (y1+y2)/2, x1, (y1+y2)/2, 0 ) && CloseFigure( dev->hdc );
}
/*************************************************************
* pathdrv_PolyBezierTo
*/
static BOOL pathdrv_PolyBezierTo( PHYSDEV dev, const POINT *pts, DWORD cbPoints )
{
struct path_physdev *physdev = get_path_physdev( dev );
if (!start_new_stroke( physdev )) return FALSE;
return add_log_points( physdev, pts, cbPoints, PT_BEZIERTO ) != NULL;
}
/*************************************************************
* pathdrv_PolyBezier
*/
static BOOL pathdrv_PolyBezier( PHYSDEV dev, const POINT *pts, DWORD cbPoints )
{
struct path_physdev *physdev = get_path_physdev( dev );
BYTE *type = add_log_points( physdev, pts, cbPoints, PT_BEZIERTO );
if (!type) return FALSE;
type[0] = PT_MOVETO;
return TRUE;
}
/*************************************************************
* pathdrv_PolyDraw
*/
static BOOL pathdrv_PolyDraw( PHYSDEV dev, const POINT *pts, const BYTE *types, DWORD cbPoints )
{
struct path_physdev *physdev = get_path_physdev( dev );
POINT lastmove, orig_pos;
INT i;
GetCurrentPositionEx( dev->hdc, &orig_pos );
lastmove = orig_pos;
for(i = physdev->path->numEntriesUsed - 1; i >= 0; i--){
if(physdev->path->pFlags[i] == PT_MOVETO){
lastmove = physdev->path->pPoints[i];
DPtoLP(dev->hdc, &lastmove, 1);
break;
}
}
for(i = 0; i < cbPoints; i++)
{
switch (types[i])
{
case PT_MOVETO:
MoveToEx( dev->hdc, pts[i].x, pts[i].y, NULL );
break;
case PT_LINETO:
case PT_LINETO | PT_CLOSEFIGURE:
LineTo( dev->hdc, pts[i].x, pts[i].y );
break;
case PT_BEZIERTO:
if ((i + 2 < cbPoints) && (types[i + 1] == PT_BEZIERTO) &&
(types[i + 2] & ~PT_CLOSEFIGURE) == PT_BEZIERTO)
{
PolyBezierTo( dev->hdc, &pts[i], 3 );
i += 2;
break;
}
/* fall through */
default:
if (i) /* restore original position */
{
if (!(types[i - 1] & PT_CLOSEFIGURE)) lastmove = pts[i - 1];
if (lastmove.x != orig_pos.x || lastmove.y != orig_pos.y)
MoveToEx( dev->hdc, orig_pos.x, orig_pos.y, NULL );
}
return FALSE;
}
if(types[i] & PT_CLOSEFIGURE){
physdev->path->pFlags[physdev->path->numEntriesUsed-1] |= PT_CLOSEFIGURE;
MoveToEx( dev->hdc, lastmove.x, lastmove.y, NULL );
}
}
return TRUE;
}
/*************************************************************
* pathdrv_Polyline
*/
static BOOL pathdrv_Polyline( PHYSDEV dev, const POINT *pts, INT cbPoints )
{
struct path_physdev *physdev = get_path_physdev( dev );
BYTE *type = add_log_points( physdev, pts, cbPoints, PT_LINETO );
if (!type) return FALSE;
if (cbPoints) type[0] = PT_MOVETO;
return TRUE;
}
/*************************************************************
* pathdrv_PolylineTo
*/
static BOOL pathdrv_PolylineTo( PHYSDEV dev, const POINT *pts, INT cbPoints )
{
struct path_physdev *physdev = get_path_physdev( dev );
if (!start_new_stroke( physdev )) return FALSE;
return add_log_points( physdev, pts, cbPoints, PT_LINETO ) != NULL;
}
/*************************************************************
* pathdrv_Polygon
*/
static BOOL pathdrv_Polygon( PHYSDEV dev, const POINT *pts, INT cbPoints )
{
struct path_physdev *physdev = get_path_physdev( dev );
BYTE *type = add_log_points( physdev, pts, cbPoints, PT_LINETO );
if (!type) return FALSE;
if (cbPoints) type[0] = PT_MOVETO;
if (cbPoints > 1) type[cbPoints - 1] = PT_LINETO | PT_CLOSEFIGURE;
return TRUE;
}
/*************************************************************
* pathdrv_PolyPolygon
*/
static BOOL pathdrv_PolyPolygon( PHYSDEV dev, const POINT* pts, const INT* counts, UINT polygons )
{
struct path_physdev *physdev = get_path_physdev( dev );
UINT poly;
BYTE *type;
for(poly = 0; poly < polygons; poly++) {
type = add_log_points( physdev, pts, counts[poly], PT_LINETO );
if (!type) return FALSE;
type[0] = PT_MOVETO;
/* win98 adds an extra line to close the figure for some reason */
add_log_points( physdev, pts, 1, PT_LINETO | PT_CLOSEFIGURE );
pts += counts[poly];
}
return TRUE;
}
/*************************************************************
* pathdrv_PolyPolyline
*/
static BOOL pathdrv_PolyPolyline( PHYSDEV dev, const POINT* pts, const DWORD* counts, DWORD polylines )
{
struct path_physdev *physdev = get_path_physdev( dev );
UINT poly, count;
BYTE *type;
for (poly = count = 0; poly < polylines; poly++) count += counts[poly];
type = add_log_points( physdev, pts, count, PT_LINETO );
if (!type) return FALSE;
/* make the first point of each polyline a PT_MOVETO */
for (poly = 0; poly < polylines; poly++, type += counts[poly]) *type = PT_MOVETO;
return TRUE;
}
/**********************************************************************
* PATH_BezierTo
*
* internally used by PATH_add_outline
*/
static void PATH_BezierTo(GdiPath *pPath, POINT *lppt, INT n)
{
if (n < 2) return;
if (n == 2)
{
PATH_AddEntry(pPath, &lppt[1], PT_LINETO);
}
else if (n == 3)
{
PATH_AddEntry(pPath, &lppt[0], PT_BEZIERTO);
PATH_AddEntry(pPath, &lppt[1], PT_BEZIERTO);
PATH_AddEntry(pPath, &lppt[2], PT_BEZIERTO);
}
else
{
POINT pt[3];
INT i = 0;
pt[2] = lppt[0];
n--;
while (n > 2)
{
pt[0] = pt[2];
pt[1] = lppt[i+1];
pt[2].x = (lppt[i+2].x + lppt[i+1].x) / 2;
pt[2].y = (lppt[i+2].y + lppt[i+1].y) / 2;
PATH_BezierTo(pPath, pt, 3);
n--;
i++;
}
pt[0] = pt[2];
pt[1] = lppt[i+1];
pt[2] = lppt[i+2];
PATH_BezierTo(pPath, pt, 3);
}
}
static BOOL PATH_add_outline(struct path_physdev *physdev, INT x, INT y,
TTPOLYGONHEADER *header, DWORD size)
{
TTPOLYGONHEADER *start;
POINT pt;
start = header;
while ((char *)header < (char *)start + size)
{
TTPOLYCURVE *curve;
if (header->dwType != TT_POLYGON_TYPE)
{
FIXME("Unknown header type %d\n", header->dwType);
return FALSE;
}
pt.x = x + int_from_fixed(header->pfxStart.x);
pt.y = y - int_from_fixed(header->pfxStart.y);
PATH_AddEntry(physdev->path, &pt, PT_MOVETO);
curve = (TTPOLYCURVE *)(header + 1);
while ((char *)curve < (char *)header + header->cb)
{
/*TRACE("curve->wType %d\n", curve->wType);*/
switch(curve->wType)
{
case TT_PRIM_LINE:
{
WORD i;
for (i = 0; i < curve->cpfx; i++)
{
pt.x = x + int_from_fixed(curve->apfx[i].x);
pt.y = y - int_from_fixed(curve->apfx[i].y);
PATH_AddEntry(physdev->path, &pt, PT_LINETO);
}
break;
}
case TT_PRIM_QSPLINE:
case TT_PRIM_CSPLINE:
{
WORD i;
POINTFX ptfx;
POINT *pts = HeapAlloc(GetProcessHeap(), 0, (curve->cpfx + 1) * sizeof(POINT));
if (!pts) return FALSE;
ptfx = *(POINTFX *)((char *)curve - sizeof(POINTFX));
pts[0].x = x + int_from_fixed(ptfx.x);
pts[0].y = y - int_from_fixed(ptfx.y);
for(i = 0; i < curve->cpfx; i++)
{
pts[i + 1].x = x + int_from_fixed(curve->apfx[i].x);
pts[i + 1].y = y - int_from_fixed(curve->apfx[i].y);
}
PATH_BezierTo(physdev->path, pts, curve->cpfx + 1);
HeapFree(GetProcessHeap(), 0, pts);
break;
}
default:
FIXME("Unknown curve type %04x\n", curve->wType);
return FALSE;
}
curve = (TTPOLYCURVE *)&curve->apfx[curve->cpfx];
}
header = (TTPOLYGONHEADER *)((char *)header + header->cb);
}
return CloseFigure(physdev->dev.hdc);
}
/*************************************************************
* pathdrv_ExtTextOut
*/
static BOOL pathdrv_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags, const RECT *lprc,
LPCWSTR str, UINT count, const INT *dx )
{
struct path_physdev *physdev = get_path_physdev( dev );
unsigned int idx;
POINT offset = {0, 0};
if (!count) return TRUE;
for (idx = 0; idx < count; idx++)
{
static const MAT2 identity = { {0,1},{0,0},{0,0},{0,1} };
GLYPHMETRICS gm;
DWORD dwSize;
void *outline;
dwSize = GetGlyphOutlineW(dev->hdc, str[idx], GGO_GLYPH_INDEX | GGO_NATIVE,
&gm, 0, NULL, &identity);
if (dwSize == GDI_ERROR) return FALSE;
/* add outline only if char is printable */
if(dwSize)
{
outline = HeapAlloc(GetProcessHeap(), 0, dwSize);
if (!outline) return FALSE;
GetGlyphOutlineW(dev->hdc, str[idx], GGO_GLYPH_INDEX | GGO_NATIVE,
&gm, dwSize, outline, &identity);
PATH_add_outline(physdev, x + offset.x, y + offset.y, outline, dwSize);
HeapFree(GetProcessHeap(), 0, outline);
}
if (dx)
{
if(flags & ETO_PDY)
{
offset.x += dx[idx * 2];
offset.y += dx[idx * 2 + 1];
}
else
offset.x += dx[idx];
}
else
{
offset.x += gm.gmCellIncX;
offset.y += gm.gmCellIncY;
}
}
return TRUE;
}
/*************************************************************
* pathdrv_CloseFigure
*/
static BOOL pathdrv_CloseFigure( PHYSDEV dev )
{
struct path_physdev *physdev = get_path_physdev( dev );
/* Set PT_CLOSEFIGURE on the last entry and start a new stroke */
/* It is not necessary to draw a line, PT_CLOSEFIGURE is a virtual closing line itself */
if (physdev->path->numEntriesUsed)
physdev->path->pFlags[physdev->path->numEntriesUsed - 1] |= PT_CLOSEFIGURE;
return TRUE;
}
/*******************************************************************
* FlattenPath [GDI32.@]
*
*
*/
BOOL WINAPI FlattenPath(HDC hdc)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pFlattenPath );
ret = physdev->funcs->pFlattenPath( physdev );
release_dc_ptr( dc );
}
return ret;
}
static BOOL PATH_StrokePath( HDC hdc, GdiPath *pPath )
{
INT i, nLinePts, nAlloc;
POINT *pLinePts;
POINT ptViewportOrg, ptWindowOrg;
SIZE szViewportExt, szWindowExt;
DWORD mapMode, graphicsMode;
XFORM xform;
BOOL ret = TRUE;
/* Save the mapping mode info */
mapMode=GetMapMode(hdc);
GetViewportExtEx(hdc, &szViewportExt);
GetViewportOrgEx(hdc, &ptViewportOrg);
GetWindowExtEx(hdc, &szWindowExt);
GetWindowOrgEx(hdc, &ptWindowOrg);
GetWorldTransform(hdc, &xform);
/* Set MM_TEXT */
SetMapMode(hdc, MM_TEXT);
SetViewportOrgEx(hdc, 0, 0, NULL);
SetWindowOrgEx(hdc, 0, 0, NULL);
graphicsMode=GetGraphicsMode(hdc);
SetGraphicsMode(hdc, GM_ADVANCED);
ModifyWorldTransform(hdc, &xform, MWT_IDENTITY);
SetGraphicsMode(hdc, graphicsMode);
/* Allocate enough memory for the worst case without beziers (one PT_MOVETO
* and the rest PT_LINETO with PT_CLOSEFIGURE at the end) plus some buffer
* space in case we get one to keep the number of reallocations small. */
nAlloc = pPath->numEntriesUsed + 1 + 300;
pLinePts = HeapAlloc(GetProcessHeap(), 0, nAlloc * sizeof(POINT));
nLinePts = 0;
for(i = 0; i < pPath->numEntriesUsed; i++) {
if((i == 0 || (pPath->pFlags[i-1] & PT_CLOSEFIGURE)) &&
(pPath->pFlags[i] != PT_MOVETO)) {
ERR("Expected PT_MOVETO %s, got path flag %d\n",
i == 0 ? "as first point" : "after PT_CLOSEFIGURE",
(INT)pPath->pFlags[i]);
ret = FALSE;
goto end;
}
switch(pPath->pFlags[i]) {
case PT_MOVETO:
TRACE("Got PT_MOVETO (%d, %d)\n",
pPath->pPoints[i].x, pPath->pPoints[i].y);
if(nLinePts >= 2)
Polyline(hdc, pLinePts, nLinePts);
nLinePts = 0;
pLinePts[nLinePts++] = pPath->pPoints[i];
break;
case PT_LINETO:
case (PT_LINETO | PT_CLOSEFIGURE):
TRACE("Got PT_LINETO (%d, %d)\n",
pPath->pPoints[i].x, pPath->pPoints[i].y);
pLinePts[nLinePts++] = pPath->pPoints[i];
break;
case PT_BEZIERTO:
TRACE("Got PT_BEZIERTO\n");
if(pPath->pFlags[i+1] != PT_BEZIERTO ||
(pPath->pFlags[i+2] & ~PT_CLOSEFIGURE) != PT_BEZIERTO) {
ERR("Path didn't contain 3 successive PT_BEZIERTOs\n");
ret = FALSE;
goto end;
} else {
INT nBzrPts, nMinAlloc;
POINT *pBzrPts = GDI_Bezier(&pPath->pPoints[i-1], 4, &nBzrPts);
/* Make sure we have allocated enough memory for the lines of
* this bezier and the rest of the path, assuming we won't get
* another one (since we won't reallocate again then). */
nMinAlloc = nLinePts + (pPath->numEntriesUsed - i) + nBzrPts;
if(nAlloc < nMinAlloc)
{
nAlloc = nMinAlloc * 2;
pLinePts = HeapReAlloc(GetProcessHeap(), 0, pLinePts,
nAlloc * sizeof(POINT));
}
memcpy(&pLinePts[nLinePts], &pBzrPts[1],
(nBzrPts - 1) * sizeof(POINT));
nLinePts += nBzrPts - 1;
HeapFree(GetProcessHeap(), 0, pBzrPts);
i += 2;
}
break;
default:
ERR("Got path flag %d\n", (INT)pPath->pFlags[i]);
ret = FALSE;
goto end;
}
if(pPath->pFlags[i] & PT_CLOSEFIGURE)
pLinePts[nLinePts++] = pLinePts[0];
}
if(nLinePts >= 2)
Polyline(hdc, pLinePts, nLinePts);
end:
HeapFree(GetProcessHeap(), 0, pLinePts);
/* Restore the old mapping mode */
SetMapMode(hdc, mapMode);
SetWindowExtEx(hdc, szWindowExt.cx, szWindowExt.cy, NULL);
SetWindowOrgEx(hdc, ptWindowOrg.x, ptWindowOrg.y, NULL);
SetViewportExtEx(hdc, szViewportExt.cx, szViewportExt.cy, NULL);
SetViewportOrgEx(hdc, ptViewportOrg.x, ptViewportOrg.y, NULL);
/* Go to GM_ADVANCED temporarily to restore the world transform */
graphicsMode=GetGraphicsMode(hdc);
SetGraphicsMode(hdc, GM_ADVANCED);
SetWorldTransform(hdc, &xform);
SetGraphicsMode(hdc, graphicsMode);
/* If we've moved the current point then get its new position
which will be in device (MM_TEXT) co-ords, convert it to
logical co-ords and re-set it. This basically updates
dc->CurPosX|Y so that their values are in the correct mapping
mode.
*/
if(i > 0) {
POINT pt;
GetCurrentPositionEx(hdc, &pt);
DPtoLP(hdc, &pt, 1);
MoveToEx(hdc, pt.x, pt.y, NULL);
}
return ret;
}
#define round(x) ((int)((x)>0?(x)+0.5:(x)-0.5))
static BOOL PATH_WidenPath(DC *dc)
{
INT i, j, numStrokes, penWidth, penWidthIn, penWidthOut, size, penStyle;
BOOL ret = FALSE;
GdiPath *pPath, *pNewPath, **pStrokes = NULL, *pUpPath, *pDownPath;
EXTLOGPEN *elp;
DWORD obj_type, joint, endcap, penType;
pPath = &dc->path;
PATH_FlattenPath(pPath);
size = GetObjectW( dc->hPen, 0, NULL );
if (!size) {
SetLastError(ERROR_CAN_NOT_COMPLETE);
return FALSE;
}
elp = HeapAlloc( GetProcessHeap(), 0, size );
GetObjectW( dc->hPen, size, elp );
obj_type = GetObjectType(dc->hPen);
if(obj_type == OBJ_PEN) {
penStyle = ((LOGPEN*)elp)->lopnStyle;
}
else if(obj_type == OBJ_EXTPEN) {
penStyle = elp->elpPenStyle;
}
else {
SetLastError(ERROR_CAN_NOT_COMPLETE);
HeapFree( GetProcessHeap(), 0, elp );
return FALSE;
}
penWidth = elp->elpWidth;
HeapFree( GetProcessHeap(), 0, elp );
endcap = (PS_ENDCAP_MASK & penStyle);
joint = (PS_JOIN_MASK & penStyle);
penType = (PS_TYPE_MASK & penStyle);
/* The function cannot apply to cosmetic pens */
if(obj_type == OBJ_EXTPEN && penType == PS_COSMETIC) {
SetLastError(ERROR_CAN_NOT_COMPLETE);
return FALSE;
}
penWidthIn = penWidth / 2;
penWidthOut = penWidth / 2;
if(penWidthIn + penWidthOut < penWidth)
penWidthOut++;
numStrokes = 0;
for(i = 0, j = 0; i < pPath->numEntriesUsed; i++, j++) {
POINT point;
if((i == 0 || (pPath->pFlags[i-1] & PT_CLOSEFIGURE)) &&
(pPath->pFlags[i] != PT_MOVETO)) {
ERR("Expected PT_MOVETO %s, got path flag %c\n",
i == 0 ? "as first point" : "after PT_CLOSEFIGURE",
pPath->pFlags[i]);
return FALSE;
}
switch(pPath->pFlags[i]) {
case PT_MOVETO:
if(numStrokes > 0) {
pStrokes[numStrokes - 1]->state = PATH_Closed;
}
numStrokes++;
j = 0;
if(numStrokes == 1)
pStrokes = HeapAlloc(GetProcessHeap(), 0, sizeof(GdiPath*));
else
pStrokes = HeapReAlloc(GetProcessHeap(), 0, pStrokes, numStrokes * sizeof(GdiPath*));
if(!pStrokes) return FALSE;
pStrokes[numStrokes - 1] = HeapAlloc(GetProcessHeap(), 0, sizeof(GdiPath));
PATH_InitGdiPath(pStrokes[numStrokes - 1]);
pStrokes[numStrokes - 1]->state = PATH_Open;
/* fall through */
case PT_LINETO:
case (PT_LINETO | PT_CLOSEFIGURE):
point.x = pPath->pPoints[i].x;
point.y = pPath->pPoints[i].y;
PATH_AddEntry(pStrokes[numStrokes - 1], &point, pPath->pFlags[i]);
break;
case PT_BEZIERTO:
/* should never happen because of the FlattenPath call */
ERR("Should never happen\n");
break;
default:
ERR("Got path flag %c\n", pPath->pFlags[i]);
return FALSE;
}
}
pNewPath = HeapAlloc(GetProcessHeap(), 0, sizeof(GdiPath));
PATH_InitGdiPath(pNewPath);
pNewPath->state = PATH_Open;
for(i = 0; i < numStrokes; i++) {
pUpPath = HeapAlloc(GetProcessHeap(), 0, sizeof(GdiPath));
PATH_InitGdiPath(pUpPath);
pUpPath->state = PATH_Open;
pDownPath = HeapAlloc(GetProcessHeap(), 0, sizeof(GdiPath));
PATH_InitGdiPath(pDownPath);
pDownPath->state = PATH_Open;
for(j = 0; j < pStrokes[i]->numEntriesUsed; j++) {
/* Beginning or end of the path if not closed */
if((!(pStrokes[i]->pFlags[pStrokes[i]->numEntriesUsed - 1] & PT_CLOSEFIGURE)) && (j == 0 || j == pStrokes[i]->numEntriesUsed - 1) ) {
/* Compute segment angle */
double xo, yo, xa, ya, theta;
POINT pt;
FLOAT_POINT corners[2];
if(j == 0) {
xo = pStrokes[i]->pPoints[j].x;
yo = pStrokes[i]->pPoints[j].y;
xa = pStrokes[i]->pPoints[1].x;
ya = pStrokes[i]->pPoints[1].y;
}
else {
xa = pStrokes[i]->pPoints[j - 1].x;
ya = pStrokes[i]->pPoints[j - 1].y;
xo = pStrokes[i]->pPoints[j].x;
yo = pStrokes[i]->pPoints[j].y;
}
theta = atan2( ya - yo, xa - xo );
switch(endcap) {
case PS_ENDCAP_SQUARE :
pt.x = xo + round(sqrt(2) * penWidthOut * cos(M_PI_4 + theta));
pt.y = yo + round(sqrt(2) * penWidthOut * sin(M_PI_4 + theta));
PATH_AddEntry(pUpPath, &pt, (j == 0 ? PT_MOVETO : PT_LINETO) );
pt.x = xo + round(sqrt(2) * penWidthIn * cos(- M_PI_4 + theta));
pt.y = yo + round(sqrt(2) * penWidthIn * sin(- M_PI_4 + theta));
PATH_AddEntry(pUpPath, &pt, PT_LINETO);
break;
case PS_ENDCAP_FLAT :
pt.x = xo + round( penWidthOut * cos(theta + M_PI_2) );
pt.y = yo + round( penWidthOut * sin(theta + M_PI_2) );
PATH_AddEntry(pUpPath, &pt, (j == 0 ? PT_MOVETO : PT_LINETO));
pt.x = xo - round( penWidthIn * cos(theta + M_PI_2) );
pt.y = yo - round( penWidthIn * sin(theta + M_PI_2) );
PATH_AddEntry(pUpPath, &pt, PT_LINETO);
break;
case PS_ENDCAP_ROUND :
default :
corners[0].x = xo - penWidthIn;
corners[0].y = yo - penWidthIn;
corners[1].x = xo + penWidthOut;
corners[1].y = yo + penWidthOut;
PATH_DoArcPart(pUpPath ,corners, theta + M_PI_2 , theta + 3 * M_PI_4, (j == 0 ? PT_MOVETO : FALSE));
PATH_DoArcPart(pUpPath ,corners, theta + 3 * M_PI_4 , theta + M_PI, FALSE);
PATH_DoArcPart(pUpPath ,corners, theta + M_PI, theta + 5 * M_PI_4, FALSE);
PATH_DoArcPart(pUpPath ,corners, theta + 5 * M_PI_4 , theta + 3 * M_PI_2, FALSE);
break;
}
}
/* Corpse of the path */
else {
/* Compute angle */
INT previous, next;
double xa, ya, xb, yb, xo, yo;
double alpha, theta, miterWidth;
DWORD _joint = joint;
POINT pt;
GdiPath *pInsidePath, *pOutsidePath;
if(j > 0 && j < pStrokes[i]->numEntriesUsed - 1) {
previous = j - 1;
next = j + 1;
}
else if (j == 0) {
previous = pStrokes[i]->numEntriesUsed - 1;
next = j + 1;
}
else {
previous = j - 1;
next = 0;
}
xo = pStrokes[i]->pPoints[j].x;
yo = pStrokes[i]->pPoints[j].y;
xa = pStrokes[i]->pPoints[previous].x;
ya = pStrokes[i]->pPoints[previous].y;
xb = pStrokes[i]->pPoints[next].x;
yb = pStrokes[i]->pPoints[next].y;
theta = atan2( yo - ya, xo - xa );
alpha = atan2( yb - yo, xb - xo ) - theta;
if (alpha > 0) alpha -= M_PI;
else alpha += M_PI;
if(_joint == PS_JOIN_MITER && dc->miterLimit < fabs(1 / sin(alpha/2))) {
_joint = PS_JOIN_BEVEL;
}
if(alpha > 0) {
pInsidePath = pUpPath;
pOutsidePath = pDownPath;
}
else if(alpha < 0) {
pInsidePath = pDownPath;
pOutsidePath = pUpPath;
}
else {
continue;
}
/* Inside angle points */
if(alpha > 0) {
pt.x = xo - round( penWidthIn * cos(theta + M_PI_2) );
pt.y = yo - round( penWidthIn * sin(theta + M_PI_2) );
}
else {
pt.x = xo + round( penWidthIn * cos(theta + M_PI_2) );
pt.y = yo + round( penWidthIn * sin(theta + M_PI_2) );
}
PATH_AddEntry(pInsidePath, &pt, PT_LINETO);
if(alpha > 0) {
pt.x = xo + round( penWidthIn * cos(M_PI_2 + alpha + theta) );
pt.y = yo + round( penWidthIn * sin(M_PI_2 + alpha + theta) );
}
else {
pt.x = xo - round( penWidthIn * cos(M_PI_2 + alpha + theta) );
pt.y = yo - round( penWidthIn * sin(M_PI_2 + alpha + theta) );
}
PATH_AddEntry(pInsidePath, &pt, PT_LINETO);
/* Outside angle point */
switch(_joint) {
case PS_JOIN_MITER :
miterWidth = fabs(penWidthOut / cos(M_PI_2 - fabs(alpha) / 2));
pt.x = xo + round( miterWidth * cos(theta + alpha / 2) );
pt.y = yo + round( miterWidth * sin(theta + alpha / 2) );
PATH_AddEntry(pOutsidePath, &pt, PT_LINETO);
break;
case PS_JOIN_BEVEL :
if(alpha > 0) {
pt.x = xo + round( penWidthOut * cos(theta + M_PI_2) );
pt.y = yo + round( penWidthOut * sin(theta + M_PI_2) );
}
else {
pt.x = xo - round( penWidthOut * cos(theta + M_PI_2) );
pt.y = yo - round( penWidthOut * sin(theta + M_PI_2) );
}
PATH_AddEntry(pOutsidePath, &pt, PT_LINETO);
if(alpha > 0) {
pt.x = xo - round( penWidthOut * cos(M_PI_2 + alpha + theta) );
pt.y = yo - round( penWidthOut * sin(M_PI_2 + alpha + theta) );
}
else {
pt.x = xo + round( penWidthOut * cos(M_PI_2 + alpha + theta) );
pt.y = yo + round( penWidthOut * sin(M_PI_2 + alpha + theta) );
}
PATH_AddEntry(pOutsidePath, &pt, PT_LINETO);
break;
case PS_JOIN_ROUND :
default :
if(alpha > 0) {
pt.x = xo + round( penWidthOut * cos(theta + M_PI_2) );
pt.y = yo + round( penWidthOut * sin(theta + M_PI_2) );
}
else {
pt.x = xo - round( penWidthOut * cos(theta + M_PI_2) );
pt.y = yo - round( penWidthOut * sin(theta + M_PI_2) );
}
PATH_AddEntry(pOutsidePath, &pt, PT_BEZIERTO);
pt.x = xo + round( penWidthOut * cos(theta + alpha / 2) );
pt.y = yo + round( penWidthOut * sin(theta + alpha / 2) );
PATH_AddEntry(pOutsidePath, &pt, PT_BEZIERTO);
if(alpha > 0) {
pt.x = xo - round( penWidthOut * cos(M_PI_2 + alpha + theta) );
pt.y = yo - round( penWidthOut * sin(M_PI_2 + alpha + theta) );
}
else {
pt.x = xo + round( penWidthOut * cos(M_PI_2 + alpha + theta) );
pt.y = yo + round( penWidthOut * sin(M_PI_2 + alpha + theta) );
}
PATH_AddEntry(pOutsidePath, &pt, PT_BEZIERTO);
break;
}
}
}
for(j = 0; j < pUpPath->numEntriesUsed; j++) {
POINT pt;
pt.x = pUpPath->pPoints[j].x;
pt.y = pUpPath->pPoints[j].y;
PATH_AddEntry(pNewPath, &pt, (j == 0 ? PT_MOVETO : PT_LINETO));
}
for(j = 0; j < pDownPath->numEntriesUsed; j++) {
POINT pt;
pt.x = pDownPath->pPoints[pDownPath->numEntriesUsed - j - 1].x;
pt.y = pDownPath->pPoints[pDownPath->numEntriesUsed - j - 1].y;
PATH_AddEntry(pNewPath, &pt, ( (j == 0 && (pStrokes[i]->pFlags[pStrokes[i]->numEntriesUsed - 1] & PT_CLOSEFIGURE)) ? PT_MOVETO : PT_LINETO));
}
PATH_DestroyGdiPath(pStrokes[i]);
HeapFree(GetProcessHeap(), 0, pStrokes[i]);
PATH_DestroyGdiPath(pUpPath);
HeapFree(GetProcessHeap(), 0, pUpPath);
PATH_DestroyGdiPath(pDownPath);
HeapFree(GetProcessHeap(), 0, pDownPath);
}
HeapFree(GetProcessHeap(), 0, pStrokes);
pNewPath->state = PATH_Closed;
if (!(ret = PATH_AssignGdiPath(pPath, pNewPath)))
ERR("Assign path failed\n");
PATH_DestroyGdiPath(pNewPath);
HeapFree(GetProcessHeap(), 0, pNewPath);
return ret;
}
/*******************************************************************
* StrokeAndFillPath [GDI32.@]
*
*
*/
BOOL WINAPI StrokeAndFillPath(HDC hdc)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pStrokeAndFillPath );
ret = physdev->funcs->pStrokeAndFillPath( physdev );
release_dc_ptr( dc );
}
return ret;
}
/*******************************************************************
* StrokePath [GDI32.@]
*
*
*/
BOOL WINAPI StrokePath(HDC hdc)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pStrokePath );
ret = physdev->funcs->pStrokePath( physdev );
release_dc_ptr( dc );
}
return ret;
}
/*******************************************************************
* WidenPath [GDI32.@]
*
*
*/
BOOL WINAPI WidenPath(HDC hdc)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pWidenPath );
ret = physdev->funcs->pWidenPath( physdev );
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* null driver fallback implementations
*/
BOOL nulldrv_BeginPath( PHYSDEV dev )
{
DC *dc = get_nulldrv_dc( dev );
if (!path_driver.pCreateDC( &dc->physDev, NULL, NULL, NULL, NULL )) return FALSE;
PATH_EmptyPath(&dc->path);
dc->path.newStroke = TRUE;
dc->path.state = PATH_Open;
return TRUE;
}
BOOL nulldrv_EndPath( PHYSDEV dev )
{
SetLastError( ERROR_CAN_NOT_COMPLETE );
return FALSE;
}
BOOL nulldrv_AbortPath( PHYSDEV dev )
{
DC *dc = get_nulldrv_dc( dev );
PATH_EmptyPath( &dc->path );
return TRUE;
}
BOOL nulldrv_CloseFigure( PHYSDEV dev )
{
SetLastError( ERROR_CAN_NOT_COMPLETE );
return FALSE;
}
BOOL nulldrv_SelectClipPath( PHYSDEV dev, INT mode )
{
BOOL ret;
HRGN hrgn;
DC *dc = get_nulldrv_dc( dev );
if (dc->path.state != PATH_Closed)
{
SetLastError( ERROR_CAN_NOT_COMPLETE );
return FALSE;
}
if (!PATH_PathToRegion( &dc->path, GetPolyFillMode(dev->hdc), &hrgn )) return FALSE;
ret = ExtSelectClipRgn( dev->hdc, hrgn, mode ) != ERROR;
if (ret) PATH_EmptyPath( &dc->path );
/* FIXME: Should this function delete the path even if it failed? */
DeleteObject( hrgn );
return ret;
}
BOOL nulldrv_FillPath( PHYSDEV dev )
{
DC *dc = get_nulldrv_dc( dev );
if (dc->path.state != PATH_Closed)
{
SetLastError( ERROR_CAN_NOT_COMPLETE );
return FALSE;
}
if (!PATH_FillPath( dev->hdc, &dc->path )) return FALSE;
/* FIXME: Should the path be emptied even if conversion failed? */
PATH_EmptyPath( &dc->path );
return TRUE;
}
BOOL nulldrv_StrokeAndFillPath( PHYSDEV dev )
{
DC *dc = get_nulldrv_dc( dev );
if (dc->path.state != PATH_Closed)
{
SetLastError( ERROR_CAN_NOT_COMPLETE );
return FALSE;
}
if (!PATH_FillPath( dev->hdc, &dc->path )) return FALSE;
if (!PATH_StrokePath( dev->hdc, &dc->path )) return FALSE;
PATH_EmptyPath( &dc->path );
return TRUE;
}
BOOL nulldrv_StrokePath( PHYSDEV dev )
{
DC *dc = get_nulldrv_dc( dev );
if (dc->path.state != PATH_Closed)
{
SetLastError( ERROR_CAN_NOT_COMPLETE );
return FALSE;
}
if (!PATH_StrokePath( dev->hdc, &dc->path )) return FALSE;
PATH_EmptyPath( &dc->path );
return TRUE;
}
BOOL nulldrv_FlattenPath( PHYSDEV dev )
{
DC *dc = get_nulldrv_dc( dev );
if (dc->path.state != PATH_Closed)
{
SetLastError( ERROR_CAN_NOT_COMPLETE );
return FALSE;
}
return PATH_FlattenPath( &dc->path );
}
BOOL nulldrv_WidenPath( PHYSDEV dev )
{
DC *dc = get_nulldrv_dc( dev );
if (dc->path.state != PATH_Closed)
{
SetLastError( ERROR_CAN_NOT_COMPLETE );
return FALSE;
}
return PATH_WidenPath( dc );
}
const struct gdi_dc_funcs path_driver =
{
NULL, /* pAbortDoc */
pathdrv_AbortPath, /* pAbortPath */
NULL, /* pAlphaBlend */
pathdrv_AngleArc, /* pAngleArc */
pathdrv_Arc, /* pArc */
pathdrv_ArcTo, /* pArcTo */
pathdrv_BeginPath, /* pBeginPath */
NULL, /* pBlendImage */
NULL, /* pChoosePixelFormat */
pathdrv_Chord, /* pChord */
pathdrv_CloseFigure, /* pCloseFigure */
NULL, /* pCreateBitmap */
NULL, /* pCreateCompatibleDC */
pathdrv_CreateDC, /* pCreateDC */
NULL, /* pCreateDIBSection */
NULL, /* pDeleteBitmap */
pathdrv_DeleteDC, /* pDeleteDC */
NULL, /* pDeleteObject */
NULL, /* pDescribePixelFormat */
NULL, /* pDeviceCapabilities */
pathdrv_Ellipse, /* pEllipse */
NULL, /* pEndDoc */
NULL, /* pEndPage */
pathdrv_EndPath, /* pEndPath */
NULL, /* pEnumFonts */
NULL, /* pEnumICMProfiles */
NULL, /* pExcludeClipRect */
NULL, /* pExtDeviceMode */
NULL, /* pExtEscape */
NULL, /* pExtFloodFill */
NULL, /* pExtSelectClipRgn */
pathdrv_ExtTextOut, /* pExtTextOut */
NULL, /* pFillPath */
NULL, /* pFillRgn */
NULL, /* pFlattenPath */
NULL, /* pFontIsLinked */
NULL, /* pFrameRgn */
NULL, /* pGdiComment */
NULL, /* pGdiRealizationInfo */
NULL, /* pGetCharABCWidths */
NULL, /* pGetCharABCWidthsI */
NULL, /* pGetCharWidth */
NULL, /* pGetDeviceCaps */
NULL, /* pGetDeviceGammaRamp */
NULL, /* pGetFontData */
NULL, /* pGetFontUnicodeRanges */
NULL, /* pGetGlyphIndices */
NULL, /* pGetGlyphOutline */
NULL, /* pGetICMProfile */
NULL, /* pGetImage */
NULL, /* pGetKerningPairs */
NULL, /* pGetNearestColor */
NULL, /* pGetOutlineTextMetrics */
NULL, /* pGetPixel */
NULL, /* pGetPixelFormat */
NULL, /* pGetSystemPaletteEntries */
NULL, /* pGetTextCharsetInfo */
NULL, /* pGetTextExtentExPoint */
NULL, /* pGetTextExtentExPointI */
NULL, /* pGetTextFace */
NULL, /* pGetTextMetrics */
NULL, /* pIntersectClipRect */
NULL, /* pInvertRgn */
pathdrv_LineTo, /* pLineTo */
NULL, /* pModifyWorldTransform */
pathdrv_MoveTo, /* pMoveTo */
NULL, /* pOffsetClipRgn */
NULL, /* pOffsetViewportOrg */
NULL, /* pOffsetWindowOrg */
NULL, /* pPaintRgn */
NULL, /* pPatBlt */
pathdrv_Pie, /* pPie */
pathdrv_PolyBezier, /* pPolyBezier */
pathdrv_PolyBezierTo, /* pPolyBezierTo */
pathdrv_PolyDraw, /* pPolyDraw */
pathdrv_PolyPolygon, /* pPolyPolygon */
pathdrv_PolyPolyline, /* pPolyPolyline */
pathdrv_Polygon, /* pPolygon */
pathdrv_Polyline, /* pPolyline */
pathdrv_PolylineTo, /* pPolylineTo */
NULL, /* pPutImage */
NULL, /* pRealizeDefaultPalette */
NULL, /* pRealizePalette */
pathdrv_Rectangle, /* pRectangle */
NULL, /* pResetDC */
NULL, /* pRestoreDC */
pathdrv_RoundRect, /* pRoundRect */
NULL, /* pSaveDC */
NULL, /* pScaleViewportExt */
NULL, /* pScaleWindowExt */
NULL, /* pSelectBitmap */
NULL, /* pSelectBrush */
NULL, /* pSelectClipPath */
NULL, /* pSelectFont */
NULL, /* pSelectPalette */
NULL, /* pSelectPen */
NULL, /* pSetArcDirection */
NULL, /* pSetBkColor */
NULL, /* pSetBkMode */
NULL, /* pSetDCBrushColor */
NULL, /* pSetDCPenColor */
NULL, /* pSetDIBColorTable */
NULL, /* pSetDIBitsToDevice */
NULL, /* pSetDeviceClipping */
NULL, /* pSetDeviceGammaRamp */
NULL, /* pSetLayout */
NULL, /* pSetMapMode */
NULL, /* pSetMapperFlags */
NULL, /* pSetPixel */
NULL, /* pSetPixelFormat */
NULL, /* pSetPolyFillMode */
NULL, /* pSetROP2 */
NULL, /* pSetRelAbs */
NULL, /* pSetStretchBltMode */
NULL, /* pSetTextAlign */
NULL, /* pSetTextCharacterExtra */
NULL, /* pSetTextColor */
NULL, /* pSetTextJustification */
NULL, /* pSetViewportExt */
NULL, /* pSetViewportOrg */
NULL, /* pSetWindowExt */
NULL, /* pSetWindowOrg */
NULL, /* pSetWorldTransform */
NULL, /* pStartDoc */
NULL, /* pStartPage */
NULL, /* pStretchBlt */
NULL, /* pStretchDIBits */
NULL, /* pStrokeAndFillPath */
NULL, /* pStrokePath */
NULL, /* pSwapBuffers */
NULL, /* pUnrealizePalette */
NULL, /* pWidenPath */
/* OpenGL not supported */
};
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