| /* |
| * 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 */ |
| |
| /* A floating point version of the POINT structure */ |
| typedef struct tagFLOAT_POINT |
| { |
| double x, y; |
| } FLOAT_POINT; |
| |
| struct gdi_path |
| { |
| POINT *points; |
| BYTE *flags; |
| int count; |
| int allocated; |
| BOOL newStroke; |
| }; |
| |
| struct path_physdev |
| { |
| struct gdi_physdev dev; |
| struct gdi_path *path; |
| }; |
| |
| static inline struct path_physdev *get_path_physdev( PHYSDEV dev ) |
| { |
| return (struct path_physdev *)dev; |
| } |
| |
| void free_gdi_path( struct gdi_path *path ) |
| { |
| HeapFree( GetProcessHeap(), 0, path->points ); |
| HeapFree( GetProcessHeap(), 0, path->flags ); |
| HeapFree( GetProcessHeap(), 0, path ); |
| } |
| |
| static struct gdi_path *alloc_gdi_path( int count ) |
| { |
| struct gdi_path *path = HeapAlloc( GetProcessHeap(), 0, sizeof(*path) ); |
| |
| if (!path) |
| { |
| SetLastError( ERROR_NOT_ENOUGH_MEMORY ); |
| return NULL; |
| } |
| count = max( NUM_ENTRIES_INITIAL, count ); |
| path->points = HeapAlloc( GetProcessHeap(), 0, count * sizeof(*path->points) ); |
| path->flags = HeapAlloc( GetProcessHeap(), 0, count * sizeof(*path->flags) ); |
| if (!path->points || !path->flags) |
| { |
| free_gdi_path( path ); |
| SetLastError( ERROR_NOT_ENOUGH_MEMORY ); |
| return NULL; |
| } |
| path->count = 0; |
| path->allocated = count; |
| path->newStroke = TRUE; |
| return path; |
| } |
| |
| static struct gdi_path *copy_gdi_path( const struct gdi_path *src_path ) |
| { |
| struct gdi_path *path = HeapAlloc( GetProcessHeap(), 0, sizeof(*path) ); |
| |
| if (!path) |
| { |
| SetLastError( ERROR_NOT_ENOUGH_MEMORY ); |
| return NULL; |
| } |
| path->count = path->allocated = src_path->count; |
| path->newStroke = src_path->newStroke; |
| path->points = HeapAlloc( GetProcessHeap(), 0, path->count * sizeof(*path->points) ); |
| path->flags = HeapAlloc( GetProcessHeap(), 0, path->count * sizeof(*path->flags) ); |
| if (!path->points || !path->flags) |
| { |
| free_gdi_path( path ); |
| SetLastError( ERROR_NOT_ENOUGH_MEMORY ); |
| return NULL; |
| } |
| memcpy( path->points, src_path->points, path->count * sizeof(*path->points) ); |
| memcpy( path->flags, src_path->flags, path->count * sizeof(*path->flags) ); |
| return path; |
| } |
| |
| /* 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_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(struct gdi_path *pPath, INT count) |
| { |
| POINT *pPointsNew; |
| BYTE *pFlagsNew; |
| |
| assert(count>=0); |
| |
| /* Do we have to allocate more memory? */ |
| if(count > pPath->allocated) |
| { |
| /* Find number of entries to allocate. We let the size of the array |
| * grow exponentially, since that will guarantee linear time |
| * complexity. */ |
| count = max( pPath->allocated * 2, count ); |
| |
| pPointsNew = HeapReAlloc( GetProcessHeap(), 0, pPath->points, count * sizeof(POINT) ); |
| if (!pPointsNew) return FALSE; |
| pPath->points = pPointsNew; |
| |
| pFlagsNew = HeapReAlloc( GetProcessHeap(), 0, pPath->flags, count * sizeof(BYTE) ); |
| if (!pFlagsNew) return FALSE; |
| pPath->flags = pFlagsNew; |
| |
| pPath->allocated = count; |
| } |
| 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(struct gdi_path *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); |
| |
| /* Reserve enough memory for an extra path entry */ |
| if(!PATH_ReserveEntries(pPath, pPath->count+1)) |
| return FALSE; |
| |
| /* Store information in path entry */ |
| pPath->points[pPath->count]=*pPoint; |
| pPath->flags[pPath->count]=flags; |
| |
| pPath->count++; |
| |
| 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; |
| struct gdi_path *path = physdev->path; |
| |
| if (!PATH_ReserveEntries( path, path->count + count )) return NULL; |
| |
| ret = &path->flags[path->count]; |
| memcpy( &path->points[path->count], points, count * sizeof(*points) ); |
| LPtoDP( physdev->dev.hdc, &path->points[path->count], count ); |
| memset( ret, type, count ); |
| path->count += count; |
| return ret; |
| } |
| |
| /* start a new path stroke if necessary */ |
| static BOOL start_new_stroke( struct path_physdev *physdev ) |
| { |
| POINT pos; |
| struct gdi_path *path = physdev->path; |
| |
| if (!path->newStroke && path->count && |
| !(path->flags[path->count - 1] & PT_CLOSEFIGURE)) |
| return TRUE; |
| |
| path->newStroke = FALSE; |
| GetCurrentPositionEx( physdev->dev.hdc, &pos ); |
| return add_log_points( physdev, &pos, 1, PT_MOVETO ) != NULL; |
| } |
| |
| /* 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(struct gdi_path *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 struct gdi_path *PATH_FlattenPath(const struct gdi_path *pPath) |
| { |
| struct gdi_path *new_path; |
| INT srcpt; |
| |
| if (!(new_path = alloc_gdi_path( pPath->count ))) return NULL; |
| |
| for(srcpt = 0; srcpt < pPath->count; srcpt++) { |
| switch(pPath->flags[srcpt] & ~PT_CLOSEFIGURE) { |
| case PT_MOVETO: |
| case PT_LINETO: |
| if (!PATH_AddEntry(new_path, &pPath->points[srcpt], pPath->flags[srcpt])) |
| { |
| free_gdi_path( new_path ); |
| return NULL; |
| } |
| break; |
| case PT_BEZIERTO: |
| if (!PATH_AddFlatBezier(new_path, &pPath->points[srcpt-1], |
| pPath->flags[srcpt+2] & PT_CLOSEFIGURE)) |
| { |
| free_gdi_path( new_path ); |
| return NULL; |
| } |
| srcpt += 2; |
| break; |
| } |
| } |
| return new_path; |
| } |
| |
| /* PATH_PathToRegion |
| * |
| * Creates a region from the specified path using the specified polygon |
| * filling mode. The path is left unchanged. |
| */ |
| static HRGN PATH_PathToRegion(const struct gdi_path *pPath, INT nPolyFillMode) |
| { |
| struct gdi_path *rgn_path; |
| int numStrokes, iStroke, i; |
| INT *pNumPointsInStroke; |
| HRGN hrgn; |
| |
| if (!(rgn_path = PATH_FlattenPath( pPath ))) return 0; |
| |
| /* 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<rgn_path->count; i++) |
| if((rgn_path->flags[i] & ~PT_CLOSEFIGURE) == PT_MOVETO) |
| numStrokes++; |
| |
| /* Allocate memory for number-of-points-in-stroke array */ |
| pNumPointsInStroke=HeapAlloc( GetProcessHeap(), 0, sizeof(int) * numStrokes ); |
| if(!pNumPointsInStroke) |
| { |
| free_gdi_path( rgn_path ); |
| SetLastError(ERROR_NOT_ENOUGH_MEMORY); |
| return 0; |
| } |
| |
| /* 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<rgn_path->count; i++) |
| { |
| /* Is this the beginning of a new stroke? */ |
| if((rgn_path->flags[i] & ~PT_CLOSEFIGURE) == PT_MOVETO) |
| { |
| iStroke++; |
| pNumPointsInStroke[iStroke]=0; |
| } |
| |
| pNumPointsInStroke[iStroke]++; |
| } |
| |
| /* Create a region from the strokes */ |
| hrgn=CreatePolyPolygonRgn(rgn_path->points, pNumPointsInStroke, |
| numStrokes, nPolyFillMode); |
| |
| HeapFree( GetProcessHeap(), 0, pNumPointsInStroke ); |
| free_gdi_path( rgn_path ); |
| return hrgn; |
| } |
| |
| /* 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(struct gdi_path *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; |
| DC *dc = get_dc_ptr( hdc ); |
| |
| if(!dc) return -1; |
| |
| if (!dc->path) |
| { |
| SetLastError(ERROR_CAN_NOT_COMPLETE); |
| goto done; |
| } |
| |
| if(nSize==0) |
| ret = dc->path->count; |
| else if(nSize<dc->path->count) |
| { |
| SetLastError(ERROR_INVALID_PARAMETER); |
| goto done; |
| } |
| else |
| { |
| memcpy(pPoints, dc->path->points, sizeof(POINT)*dc->path->count); |
| memcpy(pTypes, dc->path->flags, sizeof(BYTE)*dc->path->count); |
| |
| /* Convert the points to logical coordinates */ |
| if(!DPtoLP(hdc, pPoints, dc->path->count)) |
| { |
| /* FIXME: Is this the correct value? */ |
| SetLastError(ERROR_CAN_NOT_COMPLETE); |
| goto done; |
| } |
| else ret = dc->path->count; |
| } |
| 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) |
| { |
| HRGN hrgnRval = 0; |
| DC *dc = get_dc_ptr( hdc ); |
| |
| /* Get pointer to path */ |
| if(!dc) return 0; |
| |
| if (!dc->path) SetLastError(ERROR_CAN_NOT_COMPLETE); |
| else |
| { |
| if ((hrgnRval = PATH_PathToRegion(dc->path, GetPolyFillMode(hdc)))) |
| { |
| /* FIXME: Should we empty the path even if conversion failed? */ |
| free_gdi_path( dc->path ); |
| dc->path = NULL; |
| } |
| } |
| release_dc_ptr( dc ); |
| return hrgnRval; |
| } |
| |
| static BOOL PATH_FillPath( HDC hdc, const struct gdi_path *pPath ) |
| { |
| INT mapMode, graphicsMode; |
| SIZE ptViewportExt, ptWindowExt; |
| POINT ptViewportOrg, ptWindowOrg; |
| XFORM xform; |
| HRGN hrgn; |
| |
| /* Construct a region from the path and fill it */ |
| if ((hrgn = PATH_PathToRegion(pPath, GetPolyFillMode(hdc)))) |
| { |
| /* 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 ) |
| { |
| struct path_physdev *physdev = get_path_physdev( dev ); |
| DC *dc = get_dc_ptr( dev->hdc ); |
| |
| if (!dc) return FALSE; |
| free_gdi_path( physdev->path ); |
| pop_dc_driver( dc, &path_driver ); |
| HeapFree( GetProcessHeap(), 0, physdev ); |
| release_dc_ptr( dc ); |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * pathdrv_EndPath |
| */ |
| static BOOL pathdrv_EndPath( PHYSDEV dev ) |
| { |
| struct path_physdev *physdev = get_path_physdev( dev ); |
| DC *dc = get_dc_ptr( dev->hdc ); |
| |
| if (!dc) return FALSE; |
| dc->path = physdev->path; |
| pop_dc_driver( dc, &path_driver ); |
| HeapFree( GetProcessHeap(), 0, physdev ); |
| 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 ); |
| 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; |
| } |
| |
| |
| BOOL PATH_SavePath( DC *dst, DC *src ) |
| { |
| PHYSDEV dev; |
| |
| if (src->path) |
| { |
| if (!(dst->path = copy_gdi_path( src->path ))) return FALSE; |
| } |
| else if ((dev = find_dc_driver( src, &path_driver ))) |
| { |
| struct path_physdev *physdev = get_path_physdev( dev ); |
| if (!(dst->path = copy_gdi_path( physdev->path ))) return FALSE; |
| dst->path_open = TRUE; |
| } |
| else dst->path = NULL; |
| return TRUE; |
| } |
| |
| BOOL PATH_RestorePath( DC *dst, DC *src ) |
| { |
| PHYSDEV dev; |
| struct path_physdev *physdev; |
| |
| if ((dev = pop_dc_driver( dst, &path_driver ))) |
| { |
| physdev = get_path_physdev( dev ); |
| free_gdi_path( physdev->path ); |
| HeapFree( GetProcessHeap(), 0, physdev ); |
| } |
| |
| if (src->path && src->path_open) |
| { |
| if (!path_driver.pCreateDC( &dst->physDev, NULL, NULL, NULL, NULL )) return FALSE; |
| physdev = get_path_physdev( find_dc_driver( dst, &path_driver )); |
| physdev->path = src->path; |
| src->path_open = FALSE; |
| src->path = NULL; |
| } |
| |
| if (dst->path) free_gdi_path( dst->path ); |
| dst->path = src->path; |
| src->path = NULL; |
| return TRUE; |
| } |
| |
| |
| /************************************************************* |
| * 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, ¢re, 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->count - 1; i >= 0; i--){ |
| if(physdev->path->flags[i] == PT_MOVETO){ |
| lastmove = physdev->path->points[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->flags[physdev->path->count-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(struct gdi_path *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, ggo_flags = GGO_NATIVE; |
| POINT offset = {0, 0}; |
| |
| if (!count) return TRUE; |
| if (flags & ETO_GLYPH_INDEX) ggo_flags |= GGO_GLYPH_INDEX; |
| |
| 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_flags, &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_flags, &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->count) |
| physdev->path->flags[physdev->path->count - 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, const struct gdi_path *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->count + 1 + 300; |
| pLinePts = HeapAlloc(GetProcessHeap(), 0, nAlloc * sizeof(POINT)); |
| nLinePts = 0; |
| |
| for(i = 0; i < pPath->count; i++) { |
| if((i == 0 || (pPath->flags[i-1] & PT_CLOSEFIGURE)) && |
| (pPath->flags[i] != PT_MOVETO)) { |
| ERR("Expected PT_MOVETO %s, got path flag %d\n", |
| i == 0 ? "as first point" : "after PT_CLOSEFIGURE", |
| pPath->flags[i]); |
| ret = FALSE; |
| goto end; |
| } |
| switch(pPath->flags[i]) { |
| case PT_MOVETO: |
| TRACE("Got PT_MOVETO (%d, %d)\n", |
| pPath->points[i].x, pPath->points[i].y); |
| if(nLinePts >= 2) |
| Polyline(hdc, pLinePts, nLinePts); |
| nLinePts = 0; |
| pLinePts[nLinePts++] = pPath->points[i]; |
| break; |
| case PT_LINETO: |
| case (PT_LINETO | PT_CLOSEFIGURE): |
| TRACE("Got PT_LINETO (%d, %d)\n", |
| pPath->points[i].x, pPath->points[i].y); |
| pLinePts[nLinePts++] = pPath->points[i]; |
| break; |
| case PT_BEZIERTO: |
| TRACE("Got PT_BEZIERTO\n"); |
| if(pPath->flags[i+1] != PT_BEZIERTO || |
| (pPath->flags[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->points[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->count - 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", pPath->flags[i]); |
| ret = FALSE; |
| goto end; |
| } |
| if(pPath->flags[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 struct gdi_path *PATH_WidenPath(DC *dc) |
| { |
| INT i, j, numStrokes, penWidth, penWidthIn, penWidthOut, size, penStyle; |
| struct gdi_path *flat_path, *pNewPath, **pStrokes = NULL, *pUpPath, *pDownPath; |
| EXTLOGPEN *elp; |
| DWORD obj_type, joint, endcap, penType; |
| |
| size = GetObjectW( dc->hPen, 0, NULL ); |
| if (!size) { |
| SetLastError(ERROR_CAN_NOT_COMPLETE); |
| return NULL; |
| } |
| |
| 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 NULL; |
| } |
| |
| 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 NULL; |
| } |
| |
| if (!(flat_path = PATH_FlattenPath( dc->path ))) return NULL; |
| |
| penWidthIn = penWidth / 2; |
| penWidthOut = penWidth / 2; |
| if(penWidthIn + penWidthOut < penWidth) |
| penWidthOut++; |
| |
| numStrokes = 0; |
| |
| for(i = 0, j = 0; i < flat_path->count; i++, j++) { |
| POINT point; |
| if((i == 0 || (flat_path->flags[i-1] & PT_CLOSEFIGURE)) && |
| (flat_path->flags[i] != PT_MOVETO)) { |
| ERR("Expected PT_MOVETO %s, got path flag %c\n", |
| i == 0 ? "as first point" : "after PT_CLOSEFIGURE", |
| flat_path->flags[i]); |
| free_gdi_path( flat_path ); |
| return NULL; |
| } |
| switch(flat_path->flags[i]) { |
| case PT_MOVETO: |
| numStrokes++; |
| j = 0; |
| if(numStrokes == 1) |
| pStrokes = HeapAlloc(GetProcessHeap(), 0, sizeof(*pStrokes)); |
| else |
| pStrokes = HeapReAlloc(GetProcessHeap(), 0, pStrokes, numStrokes * sizeof(*pStrokes)); |
| if(!pStrokes) return NULL; |
| pStrokes[numStrokes - 1] = alloc_gdi_path(0); |
| /* fall through */ |
| case PT_LINETO: |
| case (PT_LINETO | PT_CLOSEFIGURE): |
| point.x = flat_path->points[i].x; |
| point.y = flat_path->points[i].y; |
| PATH_AddEntry(pStrokes[numStrokes - 1], &point, flat_path->flags[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", flat_path->flags[i]); |
| return NULL; |
| } |
| } |
| |
| pNewPath = alloc_gdi_path( flat_path->count ); |
| |
| for(i = 0; i < numStrokes; i++) { |
| pUpPath = alloc_gdi_path( pStrokes[i]->count ); |
| pDownPath = alloc_gdi_path( pStrokes[i]->count ); |
| |
| for(j = 0; j < pStrokes[i]->count; j++) { |
| /* Beginning or end of the path if not closed */ |
| if((!(pStrokes[i]->flags[pStrokes[i]->count - 1] & PT_CLOSEFIGURE)) && (j == 0 || j == pStrokes[i]->count - 1) ) { |
| /* Compute segment angle */ |
| double xo, yo, xa, ya, theta; |
| POINT pt; |
| FLOAT_POINT corners[2]; |
| if(j == 0) { |
| xo = pStrokes[i]->points[j].x; |
| yo = pStrokes[i]->points[j].y; |
| xa = pStrokes[i]->points[1].x; |
| ya = pStrokes[i]->points[1].y; |
| } |
| else { |
| xa = pStrokes[i]->points[j - 1].x; |
| ya = pStrokes[i]->points[j - 1].y; |
| xo = pStrokes[i]->points[j].x; |
| yo = pStrokes[i]->points[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; |
| struct gdi_path *pInsidePath, *pOutsidePath; |
| if(j > 0 && j < pStrokes[i]->count - 1) { |
| previous = j - 1; |
| next = j + 1; |
| } |
| else if (j == 0) { |
| previous = pStrokes[i]->count - 1; |
| next = j + 1; |
| } |
| else { |
| previous = j - 1; |
| next = 0; |
| } |
| xo = pStrokes[i]->points[j].x; |
| yo = pStrokes[i]->points[j].y; |
| xa = pStrokes[i]->points[previous].x; |
| ya = pStrokes[i]->points[previous].y; |
| xb = pStrokes[i]->points[next].x; |
| yb = pStrokes[i]->points[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->count; j++) { |
| POINT pt; |
| pt.x = pUpPath->points[j].x; |
| pt.y = pUpPath->points[j].y; |
| PATH_AddEntry(pNewPath, &pt, (j == 0 ? PT_MOVETO : PT_LINETO)); |
| } |
| for(j = 0; j < pDownPath->count; j++) { |
| POINT pt; |
| pt.x = pDownPath->points[pDownPath->count - j - 1].x; |
| pt.y = pDownPath->points[pDownPath->count - j - 1].y; |
| PATH_AddEntry(pNewPath, &pt, ( (j == 0 && (pStrokes[i]->flags[pStrokes[i]->count - 1] & PT_CLOSEFIGURE)) ? PT_MOVETO : PT_LINETO)); |
| } |
| |
| free_gdi_path( pStrokes[i] ); |
| free_gdi_path( pUpPath ); |
| free_gdi_path( pDownPath ); |
| } |
| HeapFree(GetProcessHeap(), 0, pStrokes); |
| free_gdi_path( flat_path ); |
| return pNewPath; |
| } |
| |
| |
| /******************************************************************* |
| * 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 ); |
| struct path_physdev *physdev; |
| struct gdi_path *path = alloc_gdi_path(0); |
| |
| if (!path) return FALSE; |
| if (!path_driver.pCreateDC( &dc->physDev, NULL, NULL, NULL, NULL )) |
| { |
| free_gdi_path( path ); |
| return FALSE; |
| } |
| physdev = get_path_physdev( find_dc_driver( dc, &path_driver )); |
| physdev->path = path; |
| if (dc->path) free_gdi_path( dc->path ); |
| dc->path = NULL; |
| 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 ); |
| |
| if (dc->path) free_gdi_path( dc->path ); |
| dc->path = NULL; |
| 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) |
| { |
| SetLastError( ERROR_CAN_NOT_COMPLETE ); |
| return FALSE; |
| } |
| if (!(hrgn = PATH_PathToRegion( dc->path, GetPolyFillMode(dev->hdc)))) return FALSE; |
| ret = ExtSelectClipRgn( dev->hdc, hrgn, mode ) != ERROR; |
| if (ret) |
| { |
| free_gdi_path( dc->path ); |
| dc->path = NULL; |
| } |
| /* 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) |
| { |
| 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? */ |
| free_gdi_path( dc->path ); |
| dc->path = NULL; |
| return TRUE; |
| } |
| |
| BOOL nulldrv_StrokeAndFillPath( PHYSDEV dev ) |
| { |
| DC *dc = get_nulldrv_dc( dev ); |
| |
| if (!dc->path) |
| { |
| 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; |
| free_gdi_path( dc->path ); |
| dc->path = NULL; |
| return TRUE; |
| } |
| |
| BOOL nulldrv_StrokePath( PHYSDEV dev ) |
| { |
| DC *dc = get_nulldrv_dc( dev ); |
| |
| if (!dc->path) |
| { |
| SetLastError( ERROR_CAN_NOT_COMPLETE ); |
| return FALSE; |
| } |
| if (!PATH_StrokePath( dev->hdc, dc->path )) return FALSE; |
| free_gdi_path( dc->path ); |
| dc->path = NULL; |
| return TRUE; |
| } |
| |
| BOOL nulldrv_FlattenPath( PHYSDEV dev ) |
| { |
| DC *dc = get_nulldrv_dc( dev ); |
| struct gdi_path *path; |
| |
| if (!dc->path) |
| { |
| SetLastError( ERROR_CAN_NOT_COMPLETE ); |
| return FALSE; |
| } |
| if (!(path = PATH_FlattenPath( dc->path ))) return FALSE; |
| free_gdi_path( dc->path ); |
| dc->path = path; |
| return TRUE; |
| } |
| |
| BOOL nulldrv_WidenPath( PHYSDEV dev ) |
| { |
| DC *dc = get_nulldrv_dc( dev ); |
| struct gdi_path *path; |
| |
| if (!dc->path) |
| { |
| SetLastError( ERROR_CAN_NOT_COMPLETE ); |
| return FALSE; |
| } |
| if (!(path = PATH_WidenPath( dc ))) return FALSE; |
| free_gdi_path( dc->path ); |
| dc->path = path; |
| return TRUE; |
| } |
| |
| 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 */ |
| pathdrv_Chord, /* pChord */ |
| pathdrv_CloseFigure, /* pCloseFigure */ |
| NULL, /* pCreateCompatibleDC */ |
| pathdrv_CreateDC, /* pCreateDC */ |
| pathdrv_DeleteDC, /* pDeleteDC */ |
| NULL, /* pDeleteObject */ |
| 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, /* pGetBoundsRect */ |
| NULL, /* pGetCharABCWidths */ |
| NULL, /* pGetCharABCWidthsI */ |
| NULL, /* pGetCharWidth */ |
| NULL, /* pGetDeviceCaps */ |
| NULL, /* pGetDeviceGammaRamp */ |
| NULL, /* pGetFontData */ |
| NULL, /* pGetFontRealizationInfo */ |
| NULL, /* pGetFontUnicodeRanges */ |
| NULL, /* pGetGlyphIndices */ |
| NULL, /* pGetGlyphOutline */ |
| NULL, /* pGetICMProfile */ |
| NULL, /* pGetImage */ |
| NULL, /* pGetKerningPairs */ |
| NULL, /* pGetNearestColor */ |
| NULL, /* pGetOutlineTextMetrics */ |
| NULL, /* pGetPixel */ |
| NULL, /* pGetSystemPaletteEntries */ |
| NULL, /* pGetTextCharsetInfo */ |
| NULL, /* pGetTextExtentExPoint */ |
| NULL, /* pGetTextExtentExPointI */ |
| NULL, /* pGetTextFace */ |
| NULL, /* pGetTextMetrics */ |
| NULL, /* pGradientFill */ |
| 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, /* 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, /* pUnrealizePalette */ |
| NULL, /* pWidenPath */ |
| NULL, /* wine_get_wgl_driver */ |
| GDI_PRIORITY_PATH_DRV /* priority */ |
| }; |