dlls/gdiplus/graphics.c

   1 /*
   2  * Copyright (C) 2007 Google (Evan Stade)
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdarg.h>
  20 #include <math.h>
  21 #include <limits.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winuser.h"
  26 #include "wingdi.h"
  27 #include "wine/unicode.h"
  28
  29 #define COBJMACROS
  30 #include "objbase.h"
  31 #include "ocidl.h"
  32 #include "olectl.h"
  33 #include "ole2.h"
  34
  35 #include "winreg.h"
  36 #include "shlwapi.h"
  37
  38 #include "gdiplus.h"
  39 #include "gdiplus_private.h"
  40 #include "wine/debug.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
  43
  44 /* looks-right constants */
  45 #define TENSION_CONST (0.3)
  46 #define ANCHOR_WIDTH (2.0)
  47 #define MAX_ITERS (50)
  48
  49 /* Converts angle (in degrees) to x/y coordinates */
  50 static void deg2xy(REAL angle, REAL x_0, REAL y_0, REAL *x, REAL *y)
  51 {
  52     REAL radAngle, hypotenuse;
  53
  54     radAngle = deg2rad(angle);
  55     hypotenuse = 50.0; /* arbitrary */
  56
  57     *x = x_0 + cos(radAngle) * hypotenuse;
  58     *y = y_0 + sin(radAngle) * hypotenuse;
  59 }
  60
  61 /* Converts from gdiplus path point type to gdi path point type. */
  62 static BYTE convert_path_point_type(BYTE type)
  63 {
  64     BYTE ret;
  65
  66     switch(type & PathPointTypePathTypeMask){
  67         case PathPointTypeBezier:
  68             ret = PT_BEZIERTO;
  69             break;
  70         case PathPointTypeLine:
  71             ret = PT_LINETO;
  72             break;
  73         case PathPointTypeStart:
  74             ret = PT_MOVETO;
  75             break;
  76         default:
  77             ERR("Bad point type\n");
  78             return 0;
  79     }
  80
  81     if(type & PathPointTypeCloseSubpath)
  82         ret |= PT_CLOSEFIGURE;
  83
  84     return ret;
  85 }
  86
  87 static INT prepare_dc(GpGraphics *graphics, GpPen *pen)
  88 {
  89     HPEN gdipen;
  90     REAL width;
  91     INT save_state = SaveDC(graphics->hdc), i, numdashes;
  92     GpPointF pt[2];
  93     DWORD dash_array[MAX_DASHLEN];
  94
  95     EndPath(graphics->hdc);
  96
  97     if(pen->unit == UnitPixel){
  98         width = pen->width;
  99     }
 100     else{
 101         /* Get an estimate for the amount the pen width is affected by the world
 102          * transform. (This is similar to what some of the wine drivers do.) */
 103         pt[0].X = 0.0;
 104         pt[0].Y = 0.0;
 105         pt[1].X = 1.0;
 106         pt[1].Y = 1.0;
 107         GdipTransformMatrixPoints(graphics->worldtrans, pt, 2);
 108         width = sqrt((pt[1].X - pt[0].X) * (pt[1].X - pt[0].X) +
 109                      (pt[1].Y - pt[0].Y) * (pt[1].Y - pt[0].Y)) / sqrt(2.0);
 110
 111         width *= pen->width * convert_unit(graphics->hdc,
 112                               pen->unit == UnitWorld ? graphics->unit : pen->unit);
 113     }
 114
 115     if(pen->dash == DashStyleCustom){
 116         numdashes = min(pen->numdashes, MAX_DASHLEN);
 117
 118         TRACE("dashes are: ");
 119         for(i = 0; i < numdashes; i++){
 120             dash_array[i] = roundr(width * pen->dashes[i]);
 121             TRACE("%d, ", dash_array[i]);
 122         }
 123         TRACE("\n and the pen style is %x\n", pen->style);
 124
 125         gdipen = ExtCreatePen(pen->style, roundr(width), &pen->brush->lb,
 126                               numdashes, dash_array);
 127     }
 128     else
 129         gdipen = ExtCreatePen(pen->style, roundr(width), &pen->brush->lb, 0, NULL);
 130
 131     SelectObject(graphics->hdc, gdipen);
 132
 133     return save_state;
 134 }
 135
 136 static void restore_dc(GpGraphics *graphics, INT state)
 137 {
 138     DeleteObject(SelectObject(graphics->hdc, GetStockObject(NULL_PEN)));
 139     RestoreDC(graphics->hdc, state);
 140 }
 141
 142 /* This helper applies all the changes that the points listed in ptf need in
 143  * order to be drawn on the device context.  In the end, this should include at
 144  * least:
 145  *  -scaling by page unit
 146  *  -applying world transformation
 147  *  -converting from float to int
 148  * Native gdiplus uses gdi32 to do all this (via SetMapMode, SetViewportExtEx,
 149  * SetWindowExtEx, SetWorldTransform, etc.) but we cannot because we are using
 150  * gdi to draw, and these functions would irreparably mess with line widths.
 151  */
 152 static void transform_and_round_points(GpGraphics *graphics, POINT *pti,
 153     GpPointF *ptf, INT count)
 154 {
 155     REAL unitscale;
 156     GpMatrix *matrix;
 157     int i;
 158
 159     unitscale = convert_unit(graphics->hdc, graphics->unit);
 160
 161     /* apply page scale */
 162     if(graphics->unit != UnitDisplay)
 163         unitscale *= graphics->scale;
 164
 165     GdipCloneMatrix(graphics->worldtrans, &matrix);
 166     GdipScaleMatrix(matrix, unitscale, unitscale, MatrixOrderAppend);
 167     GdipTransformMatrixPoints(matrix, ptf, count);
 168     GdipDeleteMatrix(matrix);
 169
 170     for(i = 0; i < count; i++){
 171         pti[i].x = roundr(ptf[i].X);
 172         pti[i].y = roundr(ptf[i].Y);
 173     }
 174 }
 175
 176 /* GdipDrawPie/GdipFillPie helper function */
 177 static void draw_pie(GpGraphics *graphics, REAL x, REAL y, REAL width,
 178     REAL height, REAL startAngle, REAL sweepAngle)
 179 {
 180     GpPointF ptf[4];
 181     POINT pti[4];
 182
 183     ptf[0].X = x;
 184     ptf[0].Y = y;
 185     ptf[1].X = x + width;
 186     ptf[1].Y = y + height;
 187
 188     deg2xy(startAngle+sweepAngle, x + width / 2.0, y + width / 2.0, &ptf[2].X, &ptf[2].Y);
 189     deg2xy(startAngle, x + width / 2.0, y + width / 2.0, &ptf[3].X, &ptf[3].Y);
 190
 191     transform_and_round_points(graphics, pti, ptf, 4);
 192
 193     Pie(graphics->hdc, pti[0].x, pti[0].y, pti[1].x, pti[1].y, pti[2].x,
 194         pti[2].y, pti[3].x, pti[3].y);
 195 }
 196
 197 /* GdipDrawCurve helper function.
 198  * Calculates Bezier points from cardinal spline points. */
 199 static void calc_curve_bezier(CONST GpPointF *pts, REAL tension, REAL *x1,
 200     REAL *y1, REAL *x2, REAL *y2)
 201 {
 202     REAL xdiff, ydiff;
 203
 204     /* calculate tangent */
 205     xdiff = pts[2].X - pts[0].X;
 206     ydiff = pts[2].Y - pts[0].Y;
 207
 208     /* apply tangent to get control points */
 209     *x1 = pts[1].X - tension * xdiff;
 210     *y1 = pts[1].Y - tension * ydiff;
 211     *x2 = pts[1].X + tension * xdiff;
 212     *y2 = pts[1].Y + tension * ydiff;
 213 }
 214
 215 /* GdipDrawCurve helper function.
 216  * Calculates Bezier points from cardinal spline endpoints. */
 217 static void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
 218     REAL tension, REAL *x, REAL *y)
 219 {
 220     /* tangent at endpoints is the line from the endpoint to the adjacent point */
 221     *x = roundr(tension * (xadj - xend) + xend);
 222     *y = roundr(tension * (yadj - yend) + yend);
 223 }
 224
 225 /* Draws the linecap the specified color and size on the hdc.  The linecap is in
 226  * direction of the line from x1, y1 to x2, y2 and is anchored on x2, y2. Probably
 227  * should not be called on an hdc that has a path you care about. */
 228 static void draw_cap(GpGraphics *graphics, COLORREF color, GpLineCap cap, REAL size,
 229     const GpCustomLineCap *custom, REAL x1, REAL y1, REAL x2, REAL y2)
 230 {
 231     HGDIOBJ oldbrush = NULL, oldpen = NULL;
 232     GpMatrix *matrix = NULL;
 233     HBRUSH brush = NULL;
 234     HPEN pen = NULL;
 235     PointF ptf[4], *custptf = NULL;
 236     POINT pt[4], *custpt = NULL;
 237     BYTE *tp = NULL;
 238     REAL theta, dsmall, dbig, dx, dy = 0.0;
 239     INT i, count;
 240     LOGBRUSH lb;
 241     BOOL customstroke;
 242
 243     if((x1 == x2) && (y1 == y2))
 244         return;
 245
 246     theta = gdiplus_atan2(y2 - y1, x2 - x1);
 247
 248     customstroke = (cap == LineCapCustom) && custom && (!custom->fill);
 249     if(!customstroke){
 250         brush = CreateSolidBrush(color);
 251         lb.lbStyle = BS_SOLID;
 252         lb.lbColor = color;
 253         lb.lbHatch = 0;
 254         pen = ExtCreatePen(PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT |
 255                            PS_JOIN_MITER, 1, &lb, 0,
 256                            NULL);
 257         oldbrush = SelectObject(graphics->hdc, brush);
 258         oldpen = SelectObject(graphics->hdc, pen);
 259     }
 260
 261     switch(cap){
 262         case LineCapFlat:
 263             break;
 264         case LineCapSquare:
 265         case LineCapSquareAnchor:
 266         case LineCapDiamondAnchor:
 267             size = size * (cap & LineCapNoAnchor ? ANCHOR_WIDTH : 1.0) / 2.0;
 268             if(cap == LineCapDiamondAnchor){
 269                 dsmall = cos(theta + M_PI_2) * size;
 270                 dbig = sin(theta + M_PI_2) * size;
 271             }
 272             else{
 273                 dsmall = cos(theta + M_PI_4) * size;
 274                 dbig = sin(theta + M_PI_4) * size;
 275             }
 276
 277             ptf[0].X = x2 - dsmall;
 278             ptf[1].X = x2 + dbig;
 279
 280             ptf[0].Y = y2 - dbig;
 281             ptf[3].Y = y2 + dsmall;
 282
 283             ptf[1].Y = y2 - dsmall;
 284             ptf[2].Y = y2 + dbig;
 285
 286             ptf[3].X = x2 - dbig;
 287             ptf[2].X = x2 + dsmall;
 288
 289             transform_and_round_points(graphics, pt, ptf, 4);
 290             Polygon(graphics->hdc, pt, 4);
 291
 292             break;
 293         case LineCapArrowAnchor:
 294             size = size * 4.0 / sqrt(3.0);
 295
 296             dx = cos(M_PI / 6.0 + theta) * size;
 297             dy = sin(M_PI / 6.0 + theta) * size;
 298
 299             ptf[0].X = x2 - dx;
 300             ptf[0].Y = y2 - dy;
 301
 302             dx = cos(- M_PI / 6.0 + theta) * size;
 303             dy = sin(- M_PI / 6.0 + theta) * size;
 304
 305             ptf[1].X = x2 - dx;
 306             ptf[1].Y = y2 - dy;
 307
 308             ptf[2].X = x2;
 309             ptf[2].Y = y2;
 310
 311             transform_and_round_points(graphics, pt, ptf, 3);
 312             Polygon(graphics->hdc, pt, 3);
 313
 314             break;
 315         case LineCapRoundAnchor:
 316             dx = dy = ANCHOR_WIDTH * size / 2.0;
 317
 318             ptf[0].X = x2 - dx;
 319             ptf[0].Y = y2 - dy;
 320             ptf[1].X = x2 + dx;
 321             ptf[1].Y = y2 + dy;
 322
 323             transform_and_round_points(graphics, pt, ptf, 2);
 324             Ellipse(graphics->hdc, pt[0].x, pt[0].y, pt[1].x, pt[1].y);
 325
 326             break;
 327         case LineCapTriangle:
 328             size = size / 2.0;
 329             dx = cos(M_PI_2 + theta) * size;
 330             dy = sin(M_PI_2 + theta) * size;
 331
 332             ptf[0].X = x2 - dx;
 333             ptf[0].Y = y2 - dy;
 334             ptf[1].X = x2 + dx;
 335             ptf[1].Y = y2 + dy;
 336
 337             dx = cos(theta) * size;
 338             dy = sin(theta) * size;
 339
 340             ptf[2].X = x2 + dx;
 341             ptf[2].Y = y2 + dy;
 342
 343             transform_and_round_points(graphics, pt, ptf, 3);
 344             Polygon(graphics->hdc, pt, 3);
 345
 346             break;
 347         case LineCapRound:
 348             dx = dy = size / 2.0;
 349
 350             ptf[0].X = x2 - dx;
 351             ptf[0].Y = y2 - dy;
 352             ptf[1].X = x2 + dx;
 353             ptf[1].Y = y2 + dy;
 354
 355             dx = -cos(M_PI_2 + theta) * size;
 356             dy = -sin(M_PI_2 + theta) * size;
 357
 358             ptf[2].X = x2 - dx;
 359             ptf[2].Y = y2 - dy;
 360             ptf[3].X = x2 + dx;
 361             ptf[3].Y = y2 + dy;
 362
 363             transform_and_round_points(graphics, pt, ptf, 4);
 364             Pie(graphics->hdc, pt[0].x, pt[0].y, pt[1].x, pt[1].y, pt[2].x,
 365                 pt[2].y, pt[3].x, pt[3].y);
 366
 367             break;
 368         case LineCapCustom:
 369             if(!custom)
 370                 break;
 371
 372             count = custom->pathdata.Count;
 373             custptf = GdipAlloc(count * sizeof(PointF));
 374             custpt = GdipAlloc(count * sizeof(POINT));
 375             tp = GdipAlloc(count);
 376
 377             if(!custptf || !custpt || !tp || (GdipCreateMatrix(&matrix) != Ok))
 378                 goto custend;
 379
 380             memcpy(custptf, custom->pathdata.Points, count * sizeof(PointF));
 381
 382             GdipScaleMatrix(matrix, size, size, MatrixOrderAppend);
 383             GdipRotateMatrix(matrix, (180.0 / M_PI) * (theta - M_PI_2),
 384                              MatrixOrderAppend);
 385             GdipTranslateMatrix(matrix, x2, y2, MatrixOrderAppend);
 386             GdipTransformMatrixPoints(matrix, custptf, count);
 387
 388             transform_and_round_points(graphics, custpt, custptf, count);
 389
 390             for(i = 0; i < count; i++)
 391                 tp[i] = convert_path_point_type(custom->pathdata.Types[i]);
 392
 393             if(custom->fill){
 394                 BeginPath(graphics->hdc);
 395                 PolyDraw(graphics->hdc, custpt, tp, count);
 396                 EndPath(graphics->hdc);
 397                 StrokeAndFillPath(graphics->hdc);
 398             }
 399             else
 400                 PolyDraw(graphics->hdc, custpt, tp, count);
 401
 402 custend:
 403             GdipFree(custptf);
 404             GdipFree(custpt);
 405             GdipFree(tp);
 406             GdipDeleteMatrix(matrix);
 407             break;
 408         default:
 409             break;
 410     }
 411
 412     if(!customstroke){
 413         SelectObject(graphics->hdc, oldbrush);
 414         SelectObject(graphics->hdc, oldpen);
 415         DeleteObject(brush);
 416         DeleteObject(pen);
 417     }
 418 }
 419
 420 /* Shortens the line by the given percent by changing x2, y2.
 421  * If percent is > 1.0 then the line will change direction.
 422  * If percent is negative it can lengthen the line. */
 423 static void shorten_line_percent(REAL x1, REAL  y1, REAL *x2, REAL *y2, REAL percent)
 424 {
 425     REAL dist, theta, dx, dy;
 426
 427     if((y1 == *y2) && (x1 == *x2))
 428         return;
 429
 430     dist = sqrt((*x2 - x1) * (*x2 - x1) + (*y2 - y1) * (*y2 - y1)) * -percent;
 431     theta = gdiplus_atan2((*y2 - y1), (*x2 - x1));
 432     dx = cos(theta) * dist;
 433     dy = sin(theta) * dist;
 434
 435     *x2 = *x2 + dx;
 436     *y2 = *y2 + dy;
 437 }
 438
 439 /* Shortens the line by the given amount by changing x2, y2.
 440  * If the amount is greater than the distance, the line will become length 0.
 441  * If the amount is negative, it can lengthen the line. */
 442 static void shorten_line_amt(REAL x1, REAL y1, REAL *x2, REAL *y2, REAL amt)
 443 {
 444     REAL dx, dy, percent;
 445
 446     dx = *x2 - x1;
 447     dy = *y2 - y1;
 448     if(dx == 0 && dy == 0)
 449         return;
 450
 451     percent = amt / sqrt(dx * dx + dy * dy);
 452     if(percent >= 1.0){
 453         *x2 = x1;
 454         *y2 = y1;
 455         return;
 456     }
 457
 458     shorten_line_percent(x1, y1, x2, y2, percent);
 459 }
 460
 461 /* Draws lines between the given points, and if caps is true then draws an endcap
 462  * at the end of the last line. */
 463 static GpStatus draw_polyline(GpGraphics *graphics, GpPen *pen,
 464     GDIPCONST GpPointF * pt, INT count, BOOL caps)
 465 {
 466     POINT *pti = NULL;
 467     GpPointF *ptcopy = NULL;
 468     GpStatus status = GenericError;
 469
 470     if(!count)
 471         return Ok;
 472
 473     pti = GdipAlloc(count * sizeof(POINT));
 474     ptcopy = GdipAlloc(count * sizeof(GpPointF));
 475
 476     if(!pti || !ptcopy){
 477         status = OutOfMemory;
 478         goto end;
 479     }
 480
 481     memcpy(ptcopy, pt, count * sizeof(GpPointF));
 482
 483     if(caps){
 484         if(pen->endcap == LineCapArrowAnchor)
 485             shorten_line_amt(ptcopy[count-2].X, ptcopy[count-2].Y,
 486                              &ptcopy[count-1].X, &ptcopy[count-1].Y, pen->width);
 487         else if((pen->endcap == LineCapCustom) && pen->customend)
 488             shorten_line_amt(ptcopy[count-2].X, ptcopy[count-2].Y,
 489                              &ptcopy[count-1].X, &ptcopy[count-1].Y,
 490                              pen->customend->inset * pen->width);
 491
 492         if(pen->startcap == LineCapArrowAnchor)
 493             shorten_line_amt(ptcopy[1].X, ptcopy[1].Y,
 494                              &ptcopy[0].X, &ptcopy[0].Y, pen->width);
 495         else if((pen->startcap == LineCapCustom) && pen->customstart)
 496             shorten_line_amt(ptcopy[1].X, ptcopy[1].Y,
 497                              &ptcopy[0].X, &ptcopy[0].Y,
 498                              pen->customstart->inset * pen->width);
 499
 500         draw_cap(graphics, pen->brush->lb.lbColor, pen->endcap, pen->width, pen->customend,
 501                  pt[count - 2].X, pt[count - 2].Y, pt[count - 1].X, pt[count - 1].Y);
 502         draw_cap(graphics, pen->brush->lb.lbColor, pen->startcap, pen->width, pen->customstart,
 503                          pt[1].X, pt[1].Y, pt[0].X, pt[0].Y);
 504     }
 505
 506     transform_and_round_points(graphics, pti, ptcopy, count);
 507
 508     if(Polyline(graphics->hdc, pti, count))
 509         status = Ok;
 510
 511 end:
 512     GdipFree(pti);
 513     GdipFree(ptcopy);
 514
 515     return status;
 516 }
 517
 518 /* Conducts a linear search to find the bezier points that will back off
 519  * the endpoint of the curve by a distance of amt. Linear search works
 520  * better than binary in this case because there are multiple solutions,
 521  * and binary searches often find a bad one. I don't think this is what
 522  * Windows does but short of rendering the bezier without GDI's help it's
 523  * the best we can do. If rev then work from the start of the passed points
 524  * instead of the end. */
 525 static void shorten_bezier_amt(GpPointF * pt, REAL amt, BOOL rev)
 526 {
 527     GpPointF origpt[4];
 528     REAL percent = 0.00, dx, dy, origx, origy, diff = -1.0;
 529     INT i, first = 0, second = 1, third = 2, fourth = 3;
 530
 531     if(rev){
 532         first = 3;
 533         second = 2;
 534         third = 1;
 535         fourth = 0;
 536     }
 537
 538     origx = pt[fourth].X;
 539     origy = pt[fourth].Y;
 540     memcpy(origpt, pt, sizeof(GpPointF) * 4);
 541
 542     for(i = 0; (i < MAX_ITERS) && (diff < amt); i++){
 543         /* reset bezier points to original values */
 544         memcpy(pt, origpt, sizeof(GpPointF) * 4);
 545         /* Perform magic on bezier points. Order is important here.*/
 546         shorten_line_percent(pt[third].X, pt[third].Y, &pt[fourth].X, &pt[fourth].Y, percent);
 547         shorten_line_percent(pt[second].X, pt[second].Y, &pt[third].X, &pt[third].Y, percent);
 548         shorten_line_percent(pt[third].X, pt[third].Y, &pt[fourth].X, &pt[fourth].Y, percent);
 549         shorten_line_percent(pt[first].X, pt[first].Y, &pt[second].X, &pt[second].Y, percent);
 550         shorten_line_percent(pt[second].X, pt[second].Y, &pt[third].X, &pt[third].Y, percent);
 551         shorten_line_percent(pt[third].X, pt[third].Y, &pt[fourth].X, &pt[fourth].Y, percent);
 552
 553         dx = pt[fourth].X - origx;
 554         dy = pt[fourth].Y - origy;
 555
 556         diff = sqrt(dx * dx + dy * dy);
 557         percent += 0.0005 * amt;
 558     }
 559 }
 560
 561 /* Draws bezier curves between given points, and if caps is true then draws an
 562  * endcap at the end of the last line. */
 563 static GpStatus draw_polybezier(GpGraphics *graphics, GpPen *pen,
 564     GDIPCONST GpPointF * pt, INT count, BOOL caps)
 565 {
 566     POINT *pti;
 567     GpPointF *ptcopy;
 568     GpStatus status = GenericError;
 569
 570     if(!count)
 571         return Ok;
 572
 573     pti = GdipAlloc(count * sizeof(POINT));
 574     ptcopy = GdipAlloc(count * sizeof(GpPointF));
 575
 576     if(!pti || !ptcopy){
 577         status = OutOfMemory;
 578         goto end;
 579     }
 580
 581     memcpy(ptcopy, pt, count * sizeof(GpPointF));
 582
 583     if(caps){
 584         if(pen->endcap == LineCapArrowAnchor)
 585             shorten_bezier_amt(&ptcopy[count-4], pen->width, FALSE);
 586         else if((pen->endcap == LineCapCustom) && pen->customend)
 587             shorten_bezier_amt(&ptcopy[count-4], pen->width * pen->customend->inset,
 588                                FALSE);
 589
 590         if(pen->startcap == LineCapArrowAnchor)
 591             shorten_bezier_amt(ptcopy, pen->width, TRUE);
 592         else if((pen->startcap == LineCapCustom) && pen->customstart)
 593             shorten_bezier_amt(ptcopy, pen->width * pen->customstart->inset, TRUE);
 594
 595         /* the direction of the line cap is parallel to the direction at the
 596          * end of the bezier (which, if it has been shortened, is not the same
 597          * as the direction from pt[count-2] to pt[count-1]) */
 598         draw_cap(graphics, pen->brush->lb.lbColor, pen->endcap, pen->width, pen->customend,
 599             pt[count - 1].X - (ptcopy[count - 1].X - ptcopy[count - 2].X),
 600             pt[count - 1].Y - (ptcopy[count - 1].Y - ptcopy[count - 2].Y),
 601             pt[count - 1].X, pt[count - 1].Y);
 602
 603         draw_cap(graphics, pen->brush->lb.lbColor, pen->startcap, pen->width, pen->customstart,
 604             pt[0].X - (ptcopy[0].X - ptcopy[1].X),
 605             pt[0].Y - (ptcopy[0].Y - ptcopy[1].Y), pt[0].X, pt[0].Y);
 606     }
 607
 608     transform_and_round_points(graphics, pti, ptcopy, count);
 609
 610     PolyBezier(graphics->hdc, pti, count);
 611
 612     status = Ok;
 613
 614 end:
 615     GdipFree(pti);
 616     GdipFree(ptcopy);
 617
 618     return status;
 619 }
 620
 621 /* Draws a combination of bezier curves and lines between points. */
 622 static GpStatus draw_poly(GpGraphics *graphics, GpPen *pen, GDIPCONST GpPointF * pt,
 623     GDIPCONST BYTE * types, INT count, BOOL caps)
 624 {
 625     POINT *pti = GdipAlloc(count * sizeof(POINT));
 626     BYTE *tp = GdipAlloc(count);
 627     GpPointF *ptcopy = GdipAlloc(count * sizeof(GpPointF));
 628     INT i, j;
 629     GpStatus status = GenericError;
 630
 631     if(!count){
 632         status = Ok;
 633         goto end;
 634     }
 635     if(!pti || !tp || !ptcopy){
 636         status = OutOfMemory;
 637         goto end;
 638     }
 639
 640     for(i = 1; i < count; i++){
 641         if((types[i] & PathPointTypePathTypeMask) == PathPointTypeBezier){
 642             if((i + 2 >= count) || !(types[i + 1] & PathPointTypeBezier)
 643                 || !(types[i + 1] & PathPointTypeBezier)){
 644                 ERR("Bad bezier points\n");
 645                 goto end;
 646             }
 647             i += 2;
 648         }
 649     }
 650
 651     memcpy(ptcopy, pt, count * sizeof(GpPointF));
 652
 653     /* If we are drawing caps, go through the points and adjust them accordingly,
 654      * and draw the caps. */
 655     if(caps){
 656         switch(types[count - 1] & PathPointTypePathTypeMask){
 657             case PathPointTypeBezier:
 658                 if(pen->endcap == LineCapArrowAnchor)
 659                     shorten_bezier_amt(&ptcopy[count - 4], pen->width, FALSE);
 660                 else if((pen->endcap == LineCapCustom) && pen->customend)
 661                     shorten_bezier_amt(&ptcopy[count - 4],
 662                                        pen->width * pen->customend->inset, FALSE);
 663
 664                 draw_cap(graphics, pen->brush->lb.lbColor, pen->endcap, pen->width, pen->customend,
 665                     pt[count - 1].X - (ptcopy[count - 1].X - ptcopy[count - 2].X),
 666                     pt[count - 1].Y - (ptcopy[count - 1].Y - ptcopy[count - 2].Y),
 667                     pt[count - 1].X, pt[count - 1].Y);
 668
 669                 break;
 670             case PathPointTypeLine:
 671                 if(pen->endcap == LineCapArrowAnchor)
 672                     shorten_line_amt(ptcopy[count - 2].X, ptcopy[count - 2].Y,
 673                                      &ptcopy[count - 1].X, &ptcopy[count - 1].Y,
 674                                      pen->width);
 675                 else if((pen->endcap == LineCapCustom) && pen->customend)
 676                     shorten_line_amt(ptcopy[count - 2].X, ptcopy[count - 2].Y,
 677                                      &ptcopy[count - 1].X, &ptcopy[count - 1].Y,
 678                                      pen->customend->inset * pen->width);
 679
 680                 draw_cap(graphics, pen->brush->lb.lbColor, pen->endcap, pen->width, pen->customend,
 681                          pt[count - 2].X, pt[count - 2].Y, pt[count - 1].X,
 682                          pt[count - 1].Y);
 683
 684                 break;
 685             default:
 686                 ERR("Bad path last point\n");
 687                 goto end;
 688         }
 689
 690         /* Find start of points */
 691         for(j = 1; j < count && ((types[j] & PathPointTypePathTypeMask)
 692             == PathPointTypeStart); j++);
 693
 694         switch(types[j] & PathPointTypePathTypeMask){
 695             case PathPointTypeBezier:
 696                 if(pen->startcap == LineCapArrowAnchor)
 697                     shorten_bezier_amt(&ptcopy[j - 1], pen->width, TRUE);
 698                 else if((pen->startcap == LineCapCustom) && pen->customstart)
 699                     shorten_bezier_amt(&ptcopy[j - 1],
 700                                        pen->width * pen->customstart->inset, TRUE);
 701
 702                 draw_cap(graphics, pen->brush->lb.lbColor, pen->startcap, pen->width, pen->customstart,
 703                     pt[j - 1].X - (ptcopy[j - 1].X - ptcopy[j].X),
 704                     pt[j - 1].Y - (ptcopy[j - 1].Y - ptcopy[j].Y),
 705                     pt[j - 1].X, pt[j - 1].Y);
 706
 707                 break;
 708             case PathPointTypeLine:
 709                 if(pen->startcap == LineCapArrowAnchor)
 710                     shorten_line_amt(ptcopy[j].X, ptcopy[j].Y,
 711                                      &ptcopy[j - 1].X, &ptcopy[j - 1].Y,
 712                                      pen->width);
 713                 else if((pen->startcap == LineCapCustom) && pen->customstart)
 714                     shorten_line_amt(ptcopy[j].X, ptcopy[j].Y,
 715                                      &ptcopy[j - 1].X, &ptcopy[j - 1].Y,
 716                                      pen->customstart->inset * pen->width);
 717
 718                 draw_cap(graphics, pen->brush->lb.lbColor, pen->startcap, pen->width, pen->customstart,
 719                          pt[j].X, pt[j].Y, pt[j - 1].X,
 720                          pt[j - 1].Y);
 721
 722                 break;
 723             default:
 724                 ERR("Bad path points\n");
 725                 goto end;
 726         }
 727     }
 728
 729     transform_and_round_points(graphics, pti, ptcopy, count);
 730
 731     for(i = 0; i < count; i++){
 732         tp[i] = convert_path_point_type(types[i]);
 733     }
 734
 735     PolyDraw(graphics->hdc, pti, tp, count);
 736
 737     status = Ok;
 738
 739 end:
 740     GdipFree(pti);
 741     GdipFree(ptcopy);
 742     GdipFree(tp);
 743
 744     return status;
 745 }
 746
 747 GpStatus WINGDIPAPI GdipCreateFromHDC(HDC hdc, GpGraphics **graphics)
 748 {
 749     return GdipCreateFromHDC2(hdc, NULL, graphics);
 750 }
 751
 752 GpStatus WINGDIPAPI GdipCreateFromHDC2(HDC hdc, HANDLE hDevice, GpGraphics **graphics)
 753 {
 754     GpStatus retval;
 755
 756     if(hDevice != NULL) {
 757         FIXME("Don't know how to hadle parameter hDevice\n");
 758         return NotImplemented;
 759     }
 760
 761     if(hdc == NULL)
 762         return OutOfMemory;
 763
 764     if(graphics == NULL)
 765         return InvalidParameter;
 766
 767     *graphics = GdipAlloc(sizeof(GpGraphics));
 768     if(!*graphics)  return OutOfMemory;
 769
 770     if((retval = GdipCreateMatrix(&(*graphics)->worldtrans)) != Ok){
 771         GdipFree(*graphics);
 772         return retval;
 773     }
 774
 775     (*graphics)->hdc = hdc;
 776     (*graphics)->hwnd = NULL;
 777     (*graphics)->smoothing = SmoothingModeDefault;
 778     (*graphics)->compqual = CompositingQualityDefault;
 779     (*graphics)->interpolation = InterpolationModeDefault;
 780     (*graphics)->pixeloffset = PixelOffsetModeDefault;
 781     (*graphics)->compmode = CompositingModeSourceOver;
 782     (*graphics)->unit = UnitDisplay;
 783     (*graphics)->scale = 1.0;
 784
 785     return Ok;
 786 }
 787
 788 GpStatus WINGDIPAPI GdipCreateFromHWND(HWND hwnd, GpGraphics **graphics)
 789 {
 790     GpStatus ret;
 791
 792     if((ret = GdipCreateFromHDC(GetDC(hwnd), graphics)) != Ok)
 793         return ret;
 794
 795     (*graphics)->hwnd = hwnd;
 796
 797     return Ok;
 798 }
 799
 800 /* FIXME: no icm handling */
 801 GpStatus WINGDIPAPI GdipCreateFromHWNDICM(HWND hwnd, GpGraphics **graphics)
 802 {
 803     return GdipCreateFromHWND(hwnd, graphics);
 804 }
 805
 806 GpStatus WINGDIPAPI GdipCreateMetafileFromEmf(HENHMETAFILE hemf, BOOL delete,
 807     GpMetafile **metafile)
 808 {
 809     static int calls;
 810
 811     if(!hemf || !metafile)
 812         return InvalidParameter;
 813
 814     if(!(calls++))
 815         FIXME("not implemented\n");
 816
 817     return NotImplemented;
 818 }
 819
 820 GpStatus WINGDIPAPI GdipCreateMetafileFromWmf(HMETAFILE hwmf, BOOL delete,
 821     GDIPCONST WmfPlaceableFileHeader * placeable, GpMetafile **metafile)
 822 {
 823     IStream *stream = NULL;
 824     UINT read;
 825     BYTE* copy;
 826     HENHMETAFILE hemf;
 827     GpStatus retval = GenericError;
 828
 829     if(!hwmf || !metafile || !placeable)
 830         return InvalidParameter;
 831
 832     *metafile = NULL;
 833     read = GetMetaFileBitsEx(hwmf, 0, NULL);
 834     if(!read)
 835         return GenericError;
 836     copy = GdipAlloc(read);
 837     GetMetaFileBitsEx(hwmf, read, copy);
 838
 839     hemf = SetWinMetaFileBits(read, copy, NULL, NULL);
 840     GdipFree(copy);
 841
 842     read = GetEnhMetaFileBits(hemf, 0, NULL);
 843     copy = GdipAlloc(read);
 844     GetEnhMetaFileBits(hemf, read, copy);
 845     DeleteEnhMetaFile(hemf);
 846
 847     if(CreateStreamOnHGlobal(copy, TRUE, &stream) != S_OK){
 848         ERR("could not make stream\n");
 849         GdipFree(copy);
 850         goto err;
 851     }
 852
 853     *metafile = GdipAlloc(sizeof(GpMetafile));
 854     if(!*metafile){
 855         retval = OutOfMemory;
 856         goto err;
 857     }
 858
 859     if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
 860         (LPVOID*) &((*metafile)->image.picture)) != S_OK)
 861         goto err;
 862
 863
 864     (*metafile)->image.type = ImageTypeMetafile;
 865     (*metafile)->bounds.X = ((REAL) placeable->BoundingBox.Left) / ((REAL) placeable->Inch);
 866     (*metafile)->bounds.Y = ((REAL) placeable->BoundingBox.Right) / ((REAL) placeable->Inch);
 867     (*metafile)->bounds.Width = ((REAL) (placeable->BoundingBox.Right
 868                     - placeable->BoundingBox.Left)) / ((REAL) placeable->Inch);
 869     (*metafile)->bounds.Height = ((REAL) (placeable->BoundingBox.Bottom
 870                    - placeable->BoundingBox.Top)) / ((REAL) placeable->Inch);
 871     (*metafile)->unit = UnitInch;
 872
 873     if(delete)
 874         DeleteMetaFile(hwmf);
 875
 876     return Ok;
 877
 878 err:
 879     GdipFree(*metafile);
 880     IStream_Release(stream);
 881     return retval;
 882 }
 883
 884 GpStatus WINGDIPAPI GdipCreateMetafileFromWmfFile(GDIPCONST WCHAR *file,
 885     GDIPCONST WmfPlaceableFileHeader * placeable, GpMetafile **metafile)
 886 {
 887     HMETAFILE hmf = GetMetaFileW(file);
 888
 889     TRACE("(%s, %p, %p)\n", debugstr_w(file), placeable, metafile);
 890
 891     if(!hmf) return InvalidParameter;
 892
 893     return GdipCreateMetafileFromWmf(hmf, TRUE, placeable, metafile);
 894 }
 895
 896 GpStatus WINGDIPAPI GdipCreateStreamOnFile(GDIPCONST WCHAR * filename,
 897     UINT access, IStream **stream)
 898 {
 899     DWORD dwMode;
 900     HRESULT ret;
 901
 902     if(!stream || !filename)
 903         return InvalidParameter;
 904
 905     if(access & GENERIC_WRITE)
 906         dwMode = STGM_SHARE_DENY_WRITE | STGM_WRITE | STGM_CREATE;
 907     else if(access & GENERIC_READ)
 908         dwMode = STGM_SHARE_DENY_WRITE | STGM_READ | STGM_FAILIFTHERE;
 909     else
 910         return InvalidParameter;
 911
 912     ret = SHCreateStreamOnFileW(filename, dwMode, stream);
 913
 914     return hresult_to_status(ret);
 915 }
 916
 917 GpStatus WINGDIPAPI GdipDeleteGraphics(GpGraphics *graphics)
 918 {
 919     if(!graphics) return InvalidParameter;
 920     if(graphics->hwnd)
 921         ReleaseDC(graphics->hwnd, graphics->hdc);
 922
 923     GdipDeleteMatrix(graphics->worldtrans);
 924     HeapFree(GetProcessHeap(), 0, graphics);
 925
 926     return Ok;
 927 }
 928
 929 GpStatus WINGDIPAPI GdipDrawArc(GpGraphics *graphics, GpPen *pen, REAL x,
 930     REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
 931 {
 932     INT save_state, num_pts;
 933     GpPointF points[MAX_ARC_PTS];
 934     GpStatus retval;
 935
 936     if(!graphics || !pen || width <= 0 || height <= 0)
 937         return InvalidParameter;
 938
 939     num_pts = arc2polybezier(points, x, y, width, height, startAngle, sweepAngle);
 940
 941     save_state = prepare_dc(graphics, pen);
 942
 943     retval = draw_polybezier(graphics, pen, points, num_pts, TRUE);
 944
 945     restore_dc(graphics, save_state);
 946
 947     return retval;
 948 }
 949
 950 GpStatus WINGDIPAPI GdipDrawArcI(GpGraphics *graphics, GpPen *pen, INT x,
 951     INT y, INT width, INT height, REAL startAngle, REAL sweepAngle)
 952 {
 953     return GdipDrawArc(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height,startAngle,sweepAngle);
 954 }
 955
 956 GpStatus WINGDIPAPI GdipDrawBezier(GpGraphics *graphics, GpPen *pen, REAL x1,
 957     REAL y1, REAL x2, REAL y2, REAL x3, REAL y3, REAL x4, REAL y4)
 958 {
 959     INT save_state;
 960     GpPointF pt[4];
 961     GpStatus retval;
 962
 963     if(!graphics || !pen)
 964         return InvalidParameter;
 965
 966     pt[0].X = x1;
 967     pt[0].Y = y1;
 968     pt[1].X = x2;
 969     pt[1].Y = y2;
 970     pt[2].X = x3;
 971     pt[2].Y = y3;
 972     pt[3].X = x4;
 973     pt[3].Y = y4;
 974
 975     save_state = prepare_dc(graphics, pen);
 976
 977     retval = draw_polybezier(graphics, pen, pt, 4, TRUE);
 978
 979     restore_dc(graphics, save_state);
 980
 981     return retval;
 982 }
 983
 984 GpStatus WINGDIPAPI GdipDrawBezierI(GpGraphics *graphics, GpPen *pen, INT x1,
 985     INT y1, INT x2, INT y2, INT x3, INT y3, INT x4, INT y4)
 986 {
 987     INT save_state;
 988     GpPointF pt[4];
 989     GpStatus retval;
 990
 991     if(!graphics || !pen)
 992         return InvalidParameter;
 993
 994     pt[0].X = x1;
 995     pt[0].Y = y1;
 996     pt[1].X = x2;
 997     pt[1].Y = y2;
 998     pt[2].X = x3;
 999     pt[2].Y = y3;
1000     pt[3].X = x4;
1001     pt[3].Y = y4;
1002
1003     save_state = prepare_dc(graphics, pen);
1004
1005     retval = draw_polybezier(graphics, pen, pt, 4, TRUE);
1006
1007     restore_dc(graphics, save_state);
1008
1009     return retval;
1010 }
1011
1012 GpStatus WINGDIPAPI GdipDrawBeziers(GpGraphics *graphics, GpPen *pen,
1013     GDIPCONST GpPointF *points, INT count)
1014 {
1015     INT i;
1016     GpStatus ret;
1017
1018     if(!graphics || !pen || !points || (count <= 0))
1019         return InvalidParameter;
1020
1021     for(i = 0; i < floor(count / 4); i++){
1022         ret = GdipDrawBezier(graphics, pen,
1023                              points[4*i].X, points[4*i].Y,
1024                              points[4*i + 1].X, points[4*i + 1].Y,
1025                              points[4*i + 2].X, points[4*i + 2].Y,
1026                              points[4*i + 3].X, points[4*i + 3].Y);
1027         if(ret != Ok)
1028             return ret;
1029     }
1030
1031     return Ok;
1032 }
1033
1034 GpStatus WINGDIPAPI GdipDrawBeziersI(GpGraphics *graphics, GpPen *pen,
1035     GDIPCONST GpPoint *points, INT count)
1036 {
1037     GpPointF *pts;
1038     GpStatus ret;
1039     INT i;
1040
1041     if(!graphics || !pen || !points || (count <= 0))
1042         return InvalidParameter;
1043
1044     pts = GdipAlloc(sizeof(GpPointF) * count);
1045     if(!pts)
1046         return OutOfMemory;
1047
1048     for(i = 0; i < count; i++){
1049         pts[i].X = (REAL)points[i].X;
1050         pts[i].Y = (REAL)points[i].Y;
1051     }
1052
1053     ret = GdipDrawBeziers(graphics,pen,pts,count);
1054
1055     GdipFree(pts);
1056
1057     return ret;
1058 }
1059
1060 GpStatus WINGDIPAPI GdipDrawClosedCurve(GpGraphics *graphics, GpPen *pen,
1061     GDIPCONST GpPointF *points, INT count)
1062 {
1063     return GdipDrawClosedCurve2(graphics, pen, points, count, 1.0);
1064 }
1065
1066 GpStatus WINGDIPAPI GdipDrawClosedCurveI(GpGraphics *graphics, GpPen *pen,
1067     GDIPCONST GpPoint *points, INT count)
1068 {
1069     return GdipDrawClosedCurve2I(graphics, pen, points, count, 1.0);
1070 }
1071
1072 GpStatus WINGDIPAPI GdipDrawClosedCurve2(GpGraphics *graphics, GpPen *pen,
1073     GDIPCONST GpPointF *points, INT count, REAL tension)
1074 {
1075     GpPointF *ptf;
1076     GpStatus stat;
1077
1078     if(!graphics || !pen || !points || count <= 0)
1079         return InvalidParameter;
1080
1081     /* make a full points copy.. */
1082     ptf = GdipAlloc(sizeof(GpPointF)*(count+1));
1083     if(!ptf)
1084         return OutOfMemory;
1085     memcpy(ptf, points, sizeof(GpPointF)*count);
1086
1087     /* ..and add a first point as a last one */
1088     ptf[count] = ptf[0];
1089
1090     stat = GdipDrawCurve2(graphics, pen, ptf, count + 1, tension);
1091
1092     GdipFree(ptf);
1093
1094     return stat;
1095 }
1096
1097 GpStatus WINGDIPAPI GdipDrawClosedCurve2I(GpGraphics *graphics, GpPen *pen,
1098     GDIPCONST GpPoint *points, INT count, REAL tension)
1099 {
1100     GpPointF *ptf;
1101     GpStatus stat;
1102     INT i;
1103
1104     if(!points || count <= 0)
1105         return InvalidParameter;
1106
1107     ptf = GdipAlloc(sizeof(GpPointF)*count);
1108     if(!ptf)
1109         return OutOfMemory;
1110
1111     for(i = 0; i < count; i++){
1112         ptf[i].X = (REAL)points[i].X;
1113         ptf[i].Y = (REAL)points[i].Y;
1114     }
1115
1116     stat = GdipDrawClosedCurve2(graphics, pen, ptf, count, tension);
1117
1118     GdipFree(ptf);
1119
1120     return stat;
1121 }
1122
1123 GpStatus WINGDIPAPI GdipDrawCurve(GpGraphics *graphics, GpPen *pen,
1124     GDIPCONST GpPointF *points, INT count)
1125 {
1126     return GdipDrawCurve2(graphics,pen,points,count,1.0);
1127 }
1128
1129 GpStatus WINGDIPAPI GdipDrawCurveI(GpGraphics *graphics, GpPen *pen,
1130     GDIPCONST GpPoint *points, INT count)
1131 {
1132     GpPointF *pointsF;
1133     GpStatus ret;
1134     INT i;
1135
1136     if(!points || count <= 0)
1137         return InvalidParameter;
1138
1139     pointsF = GdipAlloc(sizeof(GpPointF)*count);
1140     if(!pointsF)
1141         return OutOfMemory;
1142
1143     for(i = 0; i < count; i++){
1144         pointsF[i].X = (REAL)points[i].X;
1145         pointsF[i].Y = (REAL)points[i].Y;
1146     }
1147
1148     ret = GdipDrawCurve(graphics,pen,pointsF,count);
1149     GdipFree(pointsF);
1150
1151     return ret;
1152 }
1153
1154 /* Approximates cardinal spline with Bezier curves. */
1155 GpStatus WINGDIPAPI GdipDrawCurve2(GpGraphics *graphics, GpPen *pen,
1156     GDIPCONST GpPointF *points, INT count, REAL tension)
1157 {
1158     /* PolyBezier expects count*3-2 points. */
1159     INT i, len_pt = count*3-2, save_state;
1160     GpPointF *pt;
1161     REAL x1, x2, y1, y2;
1162     GpStatus retval;
1163
1164     if(!graphics || !pen)
1165         return InvalidParameter;
1166
1167     pt = GdipAlloc(len_pt * sizeof(GpPointF));
1168     tension = tension * TENSION_CONST;
1169
1170     calc_curve_bezier_endp(points[0].X, points[0].Y, points[1].X, points[1].Y,
1171         tension, &x1, &y1);
1172
1173     pt[0].X = points[0].X;
1174     pt[0].Y = points[0].Y;
1175     pt[1].X = x1;
1176     pt[1].Y = y1;
1177
1178     for(i = 0; i < count-2; i++){
1179         calc_curve_bezier(&(points[i]), tension, &x1, &y1, &x2, &y2);
1180
1181         pt[3*i+2].X = x1;
1182         pt[3*i+2].Y = y1;
1183         pt[3*i+3].X = points[i+1].X;
1184         pt[3*i+3].Y = points[i+1].Y;
1185         pt[3*i+4].X = x2;
1186         pt[3*i+4].Y = y2;
1187     }
1188
1189     calc_curve_bezier_endp(points[count-1].X, points[count-1].Y,
1190         points[count-2].X, points[count-2].Y, tension, &x1, &y1);
1191
1192     pt[len_pt-2].X = x1;
1193     pt[len_pt-2].Y = y1;
1194     pt[len_pt-1].X = points[count-1].X;
1195     pt[len_pt-1].Y = points[count-1].Y;
1196
1197     save_state = prepare_dc(graphics, pen);
1198
1199     retval = draw_polybezier(graphics, pen, pt, len_pt, TRUE);
1200
1201     GdipFree(pt);
1202     restore_dc(graphics, save_state);
1203
1204     return retval;
1205 }
1206
1207 GpStatus WINGDIPAPI GdipDrawCurve2I(GpGraphics *graphics, GpPen *pen,
1208     GDIPCONST GpPoint *points, INT count, REAL tension)
1209 {
1210     GpPointF *pointsF;
1211     GpStatus ret;
1212     INT i;
1213
1214     if(!points || count <= 0)
1215         return InvalidParameter;
1216
1217     pointsF = GdipAlloc(sizeof(GpPointF)*count);
1218     if(!pointsF)
1219         return OutOfMemory;
1220
1221     for(i = 0; i < count; i++){
1222         pointsF[i].X = (REAL)points[i].X;
1223         pointsF[i].Y = (REAL)points[i].Y;
1224     }
1225
1226     ret = GdipDrawCurve2(graphics,pen,pointsF,count,tension);
1227     GdipFree(pointsF);
1228
1229     return ret;
1230 }
1231
1232 GpStatus WINGDIPAPI GdipDrawEllipse(GpGraphics *graphics, GpPen *pen, REAL x,
1233     REAL y, REAL width, REAL height)
1234 {
1235     INT save_state;
1236     GpPointF ptf[2];
1237     POINT pti[2];
1238
1239     if(!graphics || !pen)
1240         return InvalidParameter;
1241
1242     ptf[0].X = x;
1243     ptf[0].Y = y;
1244     ptf[1].X = x + width;
1245     ptf[1].Y = y + height;
1246
1247     save_state = prepare_dc(graphics, pen);
1248     SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1249
1250     transform_and_round_points(graphics, pti, ptf, 2);
1251
1252     Ellipse(graphics->hdc, pti[0].x, pti[0].y, pti[1].x, pti[1].y);
1253
1254     restore_dc(graphics, save_state);
1255
1256     return Ok;
1257 }
1258
1259 GpStatus WINGDIPAPI GdipDrawEllipseI(GpGraphics *graphics, GpPen *pen, INT x,
1260     INT y, INT width, INT height)
1261 {
1262     return GdipDrawEllipse(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
1263 }
1264
1265
1266 GpStatus WINGDIPAPI GdipDrawImage(GpGraphics *graphics, GpImage *image, REAL x, REAL y)
1267 {
1268     /* IPicture::Render uses LONG coords */
1269     return GdipDrawImageI(graphics,image,roundr(x),roundr(y));
1270 }
1271
1272 GpStatus WINGDIPAPI GdipDrawImageI(GpGraphics *graphics, GpImage *image, INT x,
1273     INT y)
1274 {
1275     UINT width, height, srcw, srch;
1276
1277     if(!graphics || !image)
1278         return InvalidParameter;
1279
1280     GdipGetImageWidth(image, &width);
1281     GdipGetImageHeight(image, &height);
1282
1283     srcw = width * (((REAL) INCH_HIMETRIC) /
1284             ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSX)));
1285     srch = height * (((REAL) INCH_HIMETRIC) /
1286             ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSY)));
1287
1288     if(image->type != ImageTypeMetafile){
1289         y += height;
1290         height *= -1;
1291     }
1292
1293     IPicture_Render(image->picture, graphics->hdc, x, y, width, height,
1294                     0, 0, srcw, srch, NULL);
1295
1296     return Ok;
1297 }
1298
1299 /* FIXME: partially implemented (only works for rectangular parallelograms) */
1300 GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image,
1301      GDIPCONST GpPointF *points, INT count, REAL srcx, REAL srcy, REAL srcwidth,
1302      REAL srcheight, GpUnit srcUnit, GDIPCONST GpImageAttributes* imageAttributes,
1303      DrawImageAbort callback, VOID * callbackData)
1304 {
1305     GpPointF ptf[3];
1306     POINT pti[3];
1307     REAL dx, dy;
1308
1309     TRACE("%p %p %p %d %f %f %f %f %d %p %p %p\n", graphics, image, points, count,
1310           srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback,
1311           callbackData);
1312
1313     if(!graphics || !image || !points || count != 3)
1314          return InvalidParameter;
1315
1316     if(srcUnit == UnitInch)
1317         dx = dy = (REAL) INCH_HIMETRIC;
1318     else if(srcUnit == UnitPixel){
1319         dx = ((REAL) INCH_HIMETRIC) /
1320              ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSX));
1321         dy = ((REAL) INCH_HIMETRIC) /
1322              ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSY));
1323     }
1324     else
1325         return NotImplemented;
1326
1327     memcpy(ptf, points, 3 * sizeof(GpPointF));
1328     transform_and_round_points(graphics, pti, ptf, 3);
1329
1330     /* IPicture renders bitmaps with the y-axis reversed
1331      * FIXME: flipping for unknown image type might not be correct. */
1332     if(image->type != ImageTypeMetafile){
1333         INT temp;
1334         temp = pti[0].y;
1335         pti[0].y = pti[2].y;
1336         pti[2].y = temp;
1337     }
1338
1339     if(IPicture_Render(image->picture, graphics->hdc,
1340         pti[0].x, pti[0].y, pti[1].x - pti[0].x, pti[2].y - pti[0].y,
1341         srcx * dx, srcy * dy,
1342         srcwidth * dx, srcheight * dy,
1343         NULL) != S_OK){
1344         if(callback)
1345             callback(callbackData);
1346         return GenericError;
1347     }
1348
1349     return Ok;
1350 }
1351
1352 GpStatus WINGDIPAPI GdipDrawImagePointsRectI(GpGraphics *graphics, GpImage *image,
1353      GDIPCONST GpPoint *points, INT count, INT srcx, INT srcy, INT srcwidth,
1354      INT srcheight, GpUnit srcUnit, GDIPCONST GpImageAttributes* imageAttributes,
1355      DrawImageAbort callback, VOID * callbackData)
1356 {
1357     GpPointF pointsF[3];
1358     INT i;
1359
1360     if(!points || count!=3)
1361         return InvalidParameter;
1362
1363     for(i = 0; i < count; i++){
1364         pointsF[i].X = (REAL)points[i].X;
1365         pointsF[i].Y = (REAL)points[i].Y;
1366     }
1367
1368     return GdipDrawImagePointsRect(graphics, image, pointsF, count, (REAL)srcx, (REAL)srcy,
1369                                    (REAL)srcwidth, (REAL)srcheight, srcUnit, imageAttributes,
1370                                    callback, callbackData);
1371 }
1372
1373 GpStatus WINGDIPAPI GdipDrawImageRectRect(GpGraphics *graphics, GpImage *image,
1374     REAL dstx, REAL dsty, REAL dstwidth, REAL dstheight, REAL srcx, REAL srcy,
1375     REAL srcwidth, REAL srcheight, GpUnit srcUnit,
1376     GDIPCONST GpImageAttributes* imageattr, DrawImageAbort callback,
1377     VOID * callbackData)
1378 {
1379     GpPointF points[3];
1380
1381     points[0].X = dstx;
1382     points[0].Y = dsty;
1383     points[1].X = dstx + dstwidth;
1384     points[1].Y = dsty;
1385     points[2].X = dstx;
1386     points[2].Y = dsty + dstheight;
1387
1388     return GdipDrawImagePointsRect(graphics, image, points, 3, srcx, srcy,
1389                srcwidth, srcheight, srcUnit, imageattr, callback, callbackData);
1390 }
1391
1392 GpStatus WINGDIPAPI GdipDrawImageRectRectI(GpGraphics *graphics, GpImage *image,
1393         INT dstx, INT dsty, INT dstwidth, INT dstheight, INT srcx, INT srcy,
1394         INT srcwidth, INT srcheight, GpUnit srcUnit,
1395         GDIPCONST GpImageAttributes* imageAttributes, DrawImageAbort callback,
1396         VOID * callbackData)
1397 {
1398    GpPointF points[3];
1399
1400     points[0].X = dstx;
1401     points[0].Y = dsty;
1402     points[1].X = dstx + dstwidth;
1403     points[1].Y = dsty;
1404     points[2].X = dstx;
1405     points[2].Y = dsty + dstheight;
1406
1407     return GdipDrawImagePointsRect(graphics, image, points, 3, srcx, srcy,
1408                srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData);
1409 }
1410
1411 GpStatus WINGDIPAPI GdipDrawImageRect(GpGraphics *graphics, GpImage *image,
1412     REAL x, REAL y, REAL width, REAL height)
1413 {
1414     RectF bounds;
1415     GpUnit unit;
1416     GpStatus ret;
1417
1418     if(!graphics || !image)
1419         return InvalidParameter;
1420
1421     ret = GdipGetImageBounds(image, &bounds, &unit);
1422     if(ret != Ok)
1423         return ret;
1424
1425     return GdipDrawImageRectRect(graphics, image, x, y, width, height,
1426                                  bounds.X, bounds.Y, bounds.Width, bounds.Height,
1427                                  unit, NULL, NULL, NULL);
1428 }
1429
1430 GpStatus WINGDIPAPI GdipDrawImageRectI(GpGraphics *graphics, GpImage *image,
1431     INT x, INT y, INT width, INT height)
1432 {
1433     return GdipDrawImageRect(graphics, image, (REAL)x, (REAL)y, (REAL)width, (REAL)height);
1434 }
1435
1436 GpStatus WINGDIPAPI GdipDrawLine(GpGraphics *graphics, GpPen *pen, REAL x1,
1437     REAL y1, REAL x2, REAL y2)
1438 {
1439     INT save_state;
1440     GpPointF pt[2];
1441     GpStatus retval;
1442
1443     if(!pen || !graphics)
1444         return InvalidParameter;
1445
1446     pt[0].X = x1;
1447     pt[0].Y = y1;
1448     pt[1].X = x2;
1449     pt[1].Y = y2;
1450
1451     save_state = prepare_dc(graphics, pen);
1452
1453     retval = draw_polyline(graphics, pen, pt, 2, TRUE);
1454
1455     restore_dc(graphics, save_state);
1456
1457     return retval;
1458 }
1459
1460 GpStatus WINGDIPAPI GdipDrawLineI(GpGraphics *graphics, GpPen *pen, INT x1,
1461     INT y1, INT x2, INT y2)
1462 {
1463     INT save_state;
1464     GpPointF pt[2];
1465     GpStatus retval;
1466
1467     if(!pen || !graphics)
1468         return InvalidParameter;
1469
1470     pt[0].X = (REAL)x1;
1471     pt[0].Y = (REAL)y1;
1472     pt[1].X = (REAL)x2;
1473     pt[1].Y = (REAL)y2;
1474
1475     save_state = prepare_dc(graphics, pen);
1476
1477     retval = draw_polyline(graphics, pen, pt, 2, TRUE);
1478
1479     restore_dc(graphics, save_state);
1480
1481     return retval;
1482 }
1483
1484 GpStatus WINGDIPAPI GdipDrawLines(GpGraphics *graphics, GpPen *pen, GDIPCONST
1485     GpPointF *points, INT count)
1486 {
1487     INT save_state;
1488     GpStatus retval;
1489
1490     if(!pen || !graphics || (count < 2))
1491         return InvalidParameter;
1492
1493     save_state = prepare_dc(graphics, pen);
1494
1495     retval = draw_polyline(graphics, pen, points, count, TRUE);
1496
1497     restore_dc(graphics, save_state);
1498
1499     return retval;
1500 }
1501
1502 GpStatus WINGDIPAPI GdipDrawLinesI(GpGraphics *graphics, GpPen *pen, GDIPCONST
1503     GpPoint *points, INT count)
1504 {
1505     INT save_state;
1506     GpStatus retval;
1507     GpPointF *ptf = NULL;
1508     int i;
1509
1510     if(!pen || !graphics || (count < 2))
1511         return InvalidParameter;
1512
1513     ptf = GdipAlloc(count * sizeof(GpPointF));
1514     if(!ptf) return OutOfMemory;
1515
1516     for(i = 0; i < count; i ++){
1517         ptf[i].X = (REAL) points[i].X;
1518         ptf[i].Y = (REAL) points[i].Y;
1519     }
1520
1521     save_state = prepare_dc(graphics, pen);
1522
1523     retval = draw_polyline(graphics, pen, ptf, count, TRUE);
1524
1525     restore_dc(graphics, save_state);
1526
1527     GdipFree(ptf);
1528     return retval;
1529 }
1530
1531 GpStatus WINGDIPAPI GdipDrawPath(GpGraphics *graphics, GpPen *pen, GpPath *path)
1532 {
1533     INT save_state;
1534     GpStatus retval;
1535
1536     if(!pen || !graphics)
1537         return InvalidParameter;
1538
1539     save_state = prepare_dc(graphics, pen);
1540
1541     retval = draw_poly(graphics, pen, path->pathdata.Points,
1542                        path->pathdata.Types, path->pathdata.Count, TRUE);
1543
1544     restore_dc(graphics, save_state);
1545
1546     return retval;
1547 }
1548
1549 GpStatus WINGDIPAPI GdipDrawPie(GpGraphics *graphics, GpPen *pen, REAL x,
1550     REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
1551 {
1552     INT save_state;
1553
1554     if(!graphics || !pen)
1555         return InvalidParameter;
1556
1557     save_state = prepare_dc(graphics, pen);
1558     SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1559
1560     draw_pie(graphics, x, y, width, height, startAngle, sweepAngle);
1561
1562     restore_dc(graphics, save_state);
1563
1564     return Ok;
1565 }
1566
1567 GpStatus WINGDIPAPI GdipDrawPieI(GpGraphics *graphics, GpPen *pen, INT x,
1568     INT y, INT width, INT height, REAL startAngle, REAL sweepAngle)
1569 {
1570     return GdipDrawPie(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height,startAngle,sweepAngle);
1571 }
1572
1573 GpStatus WINGDIPAPI GdipDrawRectangle(GpGraphics *graphics, GpPen *pen, REAL x,
1574     REAL y, REAL width, REAL height)
1575 {
1576     INT save_state;
1577     GpPointF ptf[4];
1578     POINT pti[4];
1579
1580     if(!pen || !graphics)
1581         return InvalidParameter;
1582
1583     ptf[0].X = x;
1584     ptf[0].Y = y;
1585     ptf[1].X = x + width;
1586     ptf[1].Y = y;
1587     ptf[2].X = x + width;
1588     ptf[2].Y = y + height;
1589     ptf[3].X = x;
1590     ptf[3].Y = y + height;
1591
1592     save_state = prepare_dc(graphics, pen);
1593     SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1594
1595     transform_and_round_points(graphics, pti, ptf, 4);
1596     Polygon(graphics->hdc, pti, 4);
1597
1598     restore_dc(graphics, save_state);
1599
1600     return Ok;
1601 }
1602
1603 GpStatus WINGDIPAPI GdipDrawRectangleI(GpGraphics *graphics, GpPen *pen, INT x,
1604     INT y, INT width, INT height)
1605 {
1606     return GdipDrawRectangle(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
1607 }
1608
1609 GpStatus WINGDIPAPI GdipDrawRectangles(GpGraphics *graphics, GpPen *pen,
1610     GDIPCONST GpRectF* rects, INT count)
1611 {
1612     GpPointF *ptf;
1613     POINT *pti;
1614     INT save_state, i;
1615
1616     if(!graphics || !pen || !rects || count < 1)
1617         return InvalidParameter;
1618
1619     ptf = GdipAlloc(4 * count * sizeof(GpPointF));
1620     pti = GdipAlloc(4 * count * sizeof(POINT));
1621
1622     if(!ptf || !pti){
1623         GdipFree(ptf);
1624         GdipFree(pti);
1625         return OutOfMemory;
1626     }
1627
1628     for(i = 0; i < count; i++){
1629         ptf[4 * i + 3].X = ptf[4 * i].X = rects[i].X;
1630         ptf[4 * i + 1].Y = ptf[4 * i].Y = rects[i].Y;
1631         ptf[4 * i + 2].X = ptf[4 * i + 1].X = rects[i].X + rects[i].Width;
1632         ptf[4 * i + 3].Y = ptf[4 * i + 2].Y = rects[i].Y + rects[i].Height;
1633     }
1634
1635     save_state = prepare_dc(graphics, pen);
1636     SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1637
1638     transform_and_round_points(graphics, pti, ptf, 4 * count);
1639
1640     for(i = 0; i < count; i++)
1641         Polygon(graphics->hdc, &pti[4 * i], 4);
1642
1643     restore_dc(graphics, save_state);
1644
1645     GdipFree(ptf);
1646     GdipFree(pti);
1647
1648     return Ok;
1649 }
1650
1651 GpStatus WINGDIPAPI GdipDrawRectanglesI(GpGraphics *graphics, GpPen *pen,
1652     GDIPCONST GpRect* rects, INT count)
1653 {
1654     GpRectF *rectsF;
1655     GpStatus ret;
1656     INT i;
1657
1658     if(!rects || count<=0)
1659         return InvalidParameter;
1660
1661     rectsF = GdipAlloc(sizeof(GpRectF) * count);
1662     if(!rectsF)
1663         return OutOfMemory;
1664
1665     for(i = 0;i < count;i++){
1666         rectsF[i].X      = (REAL)rects[i].X;
1667         rectsF[i].Y      = (REAL)rects[i].Y;
1668         rectsF[i].Width  = (REAL)rects[i].Width;
1669         rectsF[i].Height = (REAL)rects[i].Height;
1670     }
1671
1672     ret = GdipDrawRectangles(graphics, pen, rectsF, count);
1673     GdipFree(rectsF);
1674
1675     return ret;
1676 }
1677
1678 GpStatus WINGDIPAPI GdipDrawString(GpGraphics *graphics, GDIPCONST WCHAR *string,
1679     INT length, GDIPCONST GpFont *font, GDIPCONST RectF *rect,
1680     GDIPCONST GpStringFormat *format, GDIPCONST GpBrush *brush)
1681 {
1682     HRGN rgn = NULL;
1683     HFONT gdifont;
1684     LOGFONTW lfw;
1685     TEXTMETRICW textmet;
1686     GpPointF pt[2], rectcpy[4];
1687     POINT corners[4];
1688     WCHAR* stringdup;
1689     REAL angle, ang_cos, ang_sin, rel_width, rel_height;
1690     INT sum = 0, height = 0, fit, fitcpy, save_state, i, j, lret, nwidth,
1691         nheight;
1692     SIZE size;
1693     RECT drawcoord;
1694
1695     if(!graphics || !string || !font || !brush || !rect)
1696         return InvalidParameter;
1697
1698     if((brush->bt != BrushTypeSolidColor)){
1699         FIXME("not implemented for given parameters\n");
1700         return NotImplemented;
1701     }
1702
1703     if(format)
1704         TRACE("may be ignoring some format flags: attr %x\n", format->attr);
1705
1706     if(length == -1) length = lstrlenW(string);
1707
1708     stringdup = GdipAlloc(length * sizeof(WCHAR));
1709     if(!stringdup) return OutOfMemory;
1710
1711     save_state = SaveDC(graphics->hdc);
1712     SetBkMode(graphics->hdc, TRANSPARENT);
1713     SetTextColor(graphics->hdc, brush->lb.lbColor);
1714
1715     rectcpy[3].X = rectcpy[0].X = rect->X;
1716     rectcpy[1].Y = rectcpy[0].Y = rect->Y;
1717     rectcpy[2].X = rectcpy[1].X = rect->X + rect->Width;
1718     rectcpy[3].Y = rectcpy[2].Y = rect->Y + rect->Height;
1719     transform_and_round_points(graphics, corners, rectcpy, 4);
1720
1721     if(roundr(rect->Width) == 0 && roundr(rect->Height) == 0){
1722         rel_width = rel_height = 1.0;
1723         nwidth = nheight = INT_MAX;
1724     }
1725     else{
1726         rel_width = sqrt((corners[1].x - corners[0].x) * (corners[1].x - corners[0].x) +
1727                          (corners[1].y - corners[0].y) * (corners[1].y - corners[0].y))
1728                          / rect->Width;
1729         rel_height = sqrt((corners[2].x - corners[1].x) * (corners[2].x - corners[1].x) +
1730                           (corners[2].y - corners[1].y) * (corners[2].y - corners[1].y))
1731                           / rect->Height;
1732
1733         nwidth = roundr(rel_width * rect->Width);
1734         nheight = roundr(rel_height * rect->Height);
1735         rgn = CreatePolygonRgn(corners, 4, ALTERNATE);
1736         SelectClipRgn(graphics->hdc, rgn);
1737     }
1738
1739     /* Use gdi to find the font, then perform transformations on it (height,
1740      * width, angle). */
1741     SelectObject(graphics->hdc, CreateFontIndirectW(&font->lfw));
1742     GetTextMetricsW(graphics->hdc, &textmet);
1743     lfw = font->lfw;
1744
1745     lfw.lfHeight = roundr(((REAL)lfw.lfHeight) * rel_height);
1746     lfw.lfWidth = roundr(textmet.tmAveCharWidth * rel_width);
1747
1748     pt[0].X = 0.0;
1749     pt[0].Y = 0.0;
1750     pt[1].X = 1.0;
1751     pt[1].Y = 0.0;
1752     GdipTransformMatrixPoints(graphics->worldtrans, pt, 2);
1753     angle = gdiplus_atan2((pt[1].Y - pt[0].Y), (pt[1].X - pt[0].X));
1754     ang_cos = cos(angle);
1755     ang_sin = sin(angle);
1756     lfw.lfEscapement = lfw.lfOrientation = -roundr((angle / M_PI) * 1800.0);
1757
1758     gdifont = CreateFontIndirectW(&lfw);
1759     DeleteObject(SelectObject(graphics->hdc, CreateFontIndirectW(&lfw)));
1760
1761     for(i = 0, j = 0; i < length; i++){
1762         if(!isprintW(string[i]) && (string[i] != '\n'))
1763             continue;
1764
1765         stringdup[j] = string[i];
1766         j++;
1767     }
1768
1769     stringdup[j] = 0;
1770     length = j;
1771
1772     while(sum < length){
1773         drawcoord.left = corners[0].x + roundr(ang_sin * (REAL) height);
1774         drawcoord.top = corners[0].y + roundr(ang_cos * (REAL) height);
1775
1776         GetTextExtentExPointW(graphics->hdc, stringdup + sum, length - sum,
1777                               nwidth, &fit, NULL, &size);
1778         fitcpy = fit;
1779
1780         if(fit == 0){
1781             DrawTextW(graphics->hdc, stringdup + sum, 1, &drawcoord, DT_NOCLIP |
1782                       DT_EXPANDTABS);
1783             break;
1784         }
1785
1786         for(lret = 0; lret < fit; lret++)
1787             if(*(stringdup + sum + lret) == '\n')
1788                 break;
1789
1790         /* Line break code (may look strange, but it imitates windows). */
1791         if(lret < fit)
1792             fit = lret;    /* this is not an off-by-one error */
1793         else if(fit < (length - sum)){
1794             if(*(stringdup + sum + fit) == ' ')
1795                 while(*(stringdup + sum + fit) == ' ')
1796                     fit++;
1797             else
1798                 while(*(stringdup + sum + fit - 1) != ' '){
1799                     fit--;
1800
1801                     if(*(stringdup + sum + fit) == '\t')
1802                         break;
1803
1804                     if(fit == 0){
1805                         fit = fitcpy;
1806                         break;
1807                     }
1808                 }
1809         }
1810         DrawTextW(graphics->hdc, stringdup + sum, min(length - sum, fit),
1811                   &drawcoord, DT_NOCLIP | DT_EXPANDTABS);
1812
1813         sum += fit + (lret < fitcpy ? 1 : 0);
1814         height += size.cy;
1815
1816         if(height > nheight)
1817             break;
1818
1819         /* Stop if this was a linewrap (but not if it was a linebreak). */
1820         if((lret == fitcpy) && format && (format->attr & StringFormatFlagsNoWrap))
1821             break;
1822     }
1823
1824     GdipFree(stringdup);
1825     DeleteObject(rgn);
1826     DeleteObject(gdifont);
1827
1828     RestoreDC(graphics->hdc, save_state);
1829
1830     return Ok;
1831 }
1832
1833 GpStatus WINGDIPAPI GdipFillEllipse(GpGraphics *graphics, GpBrush *brush, REAL x,
1834     REAL y, REAL width, REAL height)
1835 {
1836     INT save_state;
1837     GpPointF ptf[2];
1838     POINT pti[2];
1839
1840     if(!graphics || !brush)
1841         return InvalidParameter;
1842
1843     ptf[0].X = x;
1844     ptf[0].Y = y;
1845     ptf[1].X = x + width;
1846     ptf[1].Y = y + height;
1847
1848     save_state = SaveDC(graphics->hdc);
1849     EndPath(graphics->hdc);
1850     SelectObject(graphics->hdc, brush->gdibrush);
1851     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1852
1853     transform_and_round_points(graphics, pti, ptf, 2);
1854
1855     Ellipse(graphics->hdc, pti[0].x, pti[0].y, pti[1].x, pti[1].y);
1856
1857     RestoreDC(graphics->hdc, save_state);
1858
1859     return Ok;
1860 }
1861
1862 GpStatus WINGDIPAPI GdipFillEllipseI(GpGraphics *graphics, GpBrush *brush, INT x,
1863     INT y, INT width, INT height)
1864 {
1865     return GdipFillEllipse(graphics,brush,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
1866 }
1867
1868 GpStatus WINGDIPAPI GdipFillPath(GpGraphics *graphics, GpBrush *brush, GpPath *path)
1869 {
1870     INT save_state;
1871     GpStatus retval;
1872
1873     if(!brush || !graphics || !path)
1874         return InvalidParameter;
1875
1876     save_state = SaveDC(graphics->hdc);
1877     EndPath(graphics->hdc);
1878     SelectObject(graphics->hdc, brush->gdibrush);
1879     SetPolyFillMode(graphics->hdc, (path->fill == FillModeAlternate ? ALTERNATE
1880                                                                     : WINDING));
1881
1882     BeginPath(graphics->hdc);
1883     retval = draw_poly(graphics, NULL, path->pathdata.Points,
1884                        path->pathdata.Types, path->pathdata.Count, FALSE);
1885
1886     if(retval != Ok)
1887         goto end;
1888
1889     EndPath(graphics->hdc);
1890     FillPath(graphics->hdc);
1891
1892     retval = Ok;
1893
1894 end:
1895     RestoreDC(graphics->hdc, save_state);
1896
1897     return retval;
1898 }
1899
1900 GpStatus WINGDIPAPI GdipFillPie(GpGraphics *graphics, GpBrush *brush, REAL x,
1901     REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
1902 {
1903     INT save_state;
1904
1905     if(!graphics || !brush)
1906         return InvalidParameter;
1907
1908     save_state = SaveDC(graphics->hdc);
1909     EndPath(graphics->hdc);
1910     SelectObject(graphics->hdc, brush->gdibrush);
1911     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1912
1913     draw_pie(graphics, x, y, width, height, startAngle, sweepAngle);
1914
1915     RestoreDC(graphics->hdc, save_state);
1916
1917     return Ok;
1918 }
1919
1920 GpStatus WINGDIPAPI GdipFillPieI(GpGraphics *graphics, GpBrush *brush, INT x,
1921     INT y, INT width, INT height, REAL startAngle, REAL sweepAngle)
1922 {
1923     return GdipFillPie(graphics,brush,(REAL)x,(REAL)y,(REAL)width,(REAL)height,startAngle,sweepAngle);
1924 }
1925
1926 GpStatus WINGDIPAPI GdipFillPolygon(GpGraphics *graphics, GpBrush *brush,
1927     GDIPCONST GpPointF *points, INT count, GpFillMode fillMode)
1928 {
1929     INT save_state;
1930     GpPointF *ptf = NULL;
1931     POINT *pti = NULL;
1932     GpStatus retval = Ok;
1933
1934     if(!graphics || !brush || !points || !count)
1935         return InvalidParameter;
1936
1937     ptf = GdipAlloc(count * sizeof(GpPointF));
1938     pti = GdipAlloc(count * sizeof(POINT));
1939     if(!ptf || !pti){
1940         retval = OutOfMemory;
1941         goto end;
1942     }
1943
1944     memcpy(ptf, points, count * sizeof(GpPointF));
1945
1946     save_state = SaveDC(graphics->hdc);
1947     EndPath(graphics->hdc);
1948     SelectObject(graphics->hdc, brush->gdibrush);
1949     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1950     SetPolyFillMode(graphics->hdc, (fillMode == FillModeAlternate ? ALTERNATE
1951                                                                   : WINDING));
1952
1953     transform_and_round_points(graphics, pti, ptf, count);
1954     Polygon(graphics->hdc, pti, count);
1955
1956     RestoreDC(graphics->hdc, save_state);
1957
1958 end:
1959     GdipFree(ptf);
1960     GdipFree(pti);
1961
1962     return retval;
1963 }
1964
1965 GpStatus WINGDIPAPI GdipFillPolygonI(GpGraphics *graphics, GpBrush *brush,
1966     GDIPCONST GpPoint *points, INT count, GpFillMode fillMode)
1967 {
1968     INT save_state, i;
1969     GpPointF *ptf = NULL;
1970     POINT *pti = NULL;
1971     GpStatus retval = Ok;
1972
1973     if(!graphics || !brush || !points || !count)
1974         return InvalidParameter;
1975
1976     ptf = GdipAlloc(count * sizeof(GpPointF));
1977     pti = GdipAlloc(count * sizeof(POINT));
1978     if(!ptf || !pti){
1979         retval = OutOfMemory;
1980         goto end;
1981     }
1982
1983     for(i = 0; i < count; i ++){
1984         ptf[i].X = (REAL) points[i].X;
1985         ptf[i].Y = (REAL) points[i].Y;
1986     }
1987
1988     save_state = SaveDC(graphics->hdc);
1989     EndPath(graphics->hdc);
1990     SelectObject(graphics->hdc, brush->gdibrush);
1991     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1992     SetPolyFillMode(graphics->hdc, (fillMode == FillModeAlternate ? ALTERNATE
1993                                                                   : WINDING));
1994
1995     transform_and_round_points(graphics, pti, ptf, count);
1996     Polygon(graphics->hdc, pti, count);
1997
1998     RestoreDC(graphics->hdc, save_state);
1999
2000 end:
2001     GdipFree(ptf);
2002     GdipFree(pti);
2003
2004     return retval;
2005 }
2006
2007 GpStatus WINGDIPAPI GdipFillRectangle(GpGraphics *graphics, GpBrush *brush,
2008     REAL x, REAL y, REAL width, REAL height)
2009 {
2010     INT save_state;
2011     GpPointF ptf[4];
2012     POINT pti[4];
2013
2014     if(!graphics || !brush)
2015         return InvalidParameter;
2016
2017     ptf[0].X = x;
2018     ptf[0].Y = y;
2019     ptf[1].X = x + width;
2020     ptf[1].Y = y;
2021     ptf[2].X = x + width;
2022     ptf[2].Y = y + height;
2023     ptf[3].X = x;
2024     ptf[3].Y = y + height;
2025
2026     save_state = SaveDC(graphics->hdc);
2027     EndPath(graphics->hdc);
2028     SelectObject(graphics->hdc, brush->gdibrush);
2029     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
2030
2031     transform_and_round_points(graphics, pti, ptf, 4);
2032
2033     Polygon(graphics->hdc, pti, 4);
2034
2035     RestoreDC(graphics->hdc, save_state);
2036
2037     return Ok;
2038 }
2039
2040 GpStatus WINGDIPAPI GdipFillRectangleI(GpGraphics *graphics, GpBrush *brush,
2041     INT x, INT y, INT width, INT height)
2042 {
2043     INT save_state;
2044     GpPointF ptf[4];
2045     POINT pti[4];
2046
2047     if(!graphics || !brush)
2048         return InvalidParameter;
2049
2050     ptf[0].X = x;
2051     ptf[0].Y = y;
2052     ptf[1].X = x + width;
2053     ptf[1].Y = y;
2054     ptf[2].X = x + width;
2055     ptf[2].Y = y + height;
2056     ptf[3].X = x;
2057     ptf[3].Y = y + height;
2058
2059     save_state = SaveDC(graphics->hdc);
2060     EndPath(graphics->hdc);
2061     SelectObject(graphics->hdc, brush->gdibrush);
2062     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
2063
2064     transform_and_round_points(graphics, pti, ptf, 4);
2065
2066     Polygon(graphics->hdc, pti, 4);
2067
2068     RestoreDC(graphics->hdc, save_state);
2069
2070     return Ok;
2071 }
2072
2073 GpStatus WINGDIPAPI GdipFillRectangles(GpGraphics *graphics, GpBrush *brush, GDIPCONST GpRectF *rects,
2074     INT count)
2075 {
2076     GpStatus ret;
2077     INT i;
2078
2079     if(!rects)
2080         return InvalidParameter;
2081
2082     for(i = 0; i < count; i++){
2083         ret = GdipFillRectangle(graphics, brush, rects[i].X, rects[i].Y, rects[i].Width, rects[i].Height);
2084         if(ret != Ok)   return ret;
2085     }
2086
2087     return Ok;
2088 }
2089
2090 GpStatus WINGDIPAPI GdipFillRectanglesI(GpGraphics *graphics, GpBrush *brush, GDIPCONST GpRect *rects,
2091     INT count)
2092 {
2093     GpRectF *rectsF;
2094     GpStatus ret;
2095     INT i;
2096
2097     if(!rects || count <= 0)
2098         return InvalidParameter;
2099
2100     rectsF = GdipAlloc(sizeof(GpRectF)*count);
2101     if(!rectsF)
2102         return OutOfMemory;
2103
2104     for(i = 0; i < count; i++){
2105         rectsF[i].X      = (REAL)rects[i].X;
2106         rectsF[i].Y      = (REAL)rects[i].Y;
2107         rectsF[i].X      = (REAL)rects[i].Width;
2108         rectsF[i].Height = (REAL)rects[i].Height;
2109     }
2110
2111     ret = GdipFillRectangles(graphics,brush,rectsF,count);
2112     GdipFree(rectsF);
2113
2114     return ret;
2115 }
2116
2117 GpStatus WINGDIPAPI GdipFillRegion(GpGraphics* graphics, GpBrush* brush,
2118         GpRegion* region)
2119 {
2120     if (!(graphics && brush && region))
2121         return InvalidParameter;
2122
2123     FIXME("(%p, %p, %p): stub\n", graphics, brush, region);
2124
2125     return NotImplemented;
2126 }
2127
2128 GpStatus WINGDIPAPI GdipFlush(GpGraphics *graphics, GpFlushIntention intention)
2129 {
2130     static int calls;
2131
2132     if(!graphics)
2133         return InvalidParameter;
2134
2135     if(!(calls++))
2136         FIXME("not implemented\n");
2137
2138     return NotImplemented;
2139 }
2140
2141 /* FIXME: Compositing mode is not used anywhere except the getter/setter. */
2142 GpStatus WINGDIPAPI GdipGetCompositingMode(GpGraphics *graphics,
2143     CompositingMode *mode)
2144 {
2145     if(!graphics || !mode)
2146         return InvalidParameter;
2147
2148     *mode = graphics->compmode;
2149
2150     return Ok;
2151 }
2152
2153 /* FIXME: Compositing quality is not used anywhere except the getter/setter. */
2154 GpStatus WINGDIPAPI GdipGetCompositingQuality(GpGraphics *graphics,
2155     CompositingQuality *quality)
2156 {
2157     if(!graphics || !quality)
2158         return InvalidParameter;
2159
2160     *quality = graphics->compqual;
2161
2162     return Ok;
2163 }
2164
2165 /* FIXME: Interpolation mode is not used anywhere except the getter/setter. */
2166 GpStatus WINGDIPAPI GdipGetInterpolationMode(GpGraphics *graphics,
2167     InterpolationMode *mode)
2168 {
2169     if(!graphics || !mode)
2170         return InvalidParameter;
2171
2172     *mode = graphics->interpolation;
2173
2174     return Ok;
2175 }
2176
2177 GpStatus WINGDIPAPI GdipGetPageScale(GpGraphics *graphics, REAL *scale)
2178 {
2179     if(!graphics || !scale)
2180         return InvalidParameter;
2181
2182     *scale = graphics->scale;
2183
2184     return Ok;
2185 }
2186
2187 GpStatus WINGDIPAPI GdipGetPageUnit(GpGraphics *graphics, GpUnit *unit)
2188 {
2189     if(!graphics || !unit)
2190         return InvalidParameter;
2191
2192     *unit = graphics->unit;
2193
2194     return Ok;
2195 }
2196
2197 /* FIXME: Pixel offset mode is not used anywhere except the getter/setter. */
2198 GpStatus WINGDIPAPI GdipGetPixelOffsetMode(GpGraphics *graphics, PixelOffsetMode
2199     *mode)
2200 {
2201     if(!graphics || !mode)
2202         return InvalidParameter;
2203
2204     *mode = graphics->pixeloffset;
2205
2206     return Ok;
2207 }
2208
2209 /* FIXME: Smoothing mode is not used anywhere except the getter/setter. */
2210 GpStatus WINGDIPAPI GdipGetSmoothingMode(GpGraphics *graphics, SmoothingMode *mode)
2211 {
2212     if(!graphics || !mode)
2213         return InvalidParameter;
2214
2215     *mode = graphics->smoothing;
2216
2217     return Ok;
2218 }
2219
2220 /* FIXME: Text rendering hint is not used anywhere except the getter/setter. */
2221 GpStatus WINGDIPAPI GdipGetTextRenderingHint(GpGraphics *graphics,
2222     TextRenderingHint *hint)
2223 {
2224     if(!graphics || !hint)
2225         return InvalidParameter;
2226
2227     *hint = graphics->texthint;
2228
2229     return Ok;
2230 }
2231
2232 GpStatus WINGDIPAPI GdipGetWorldTransform(GpGraphics *graphics, GpMatrix *matrix)
2233 {
2234     if(!graphics || !matrix)
2235         return InvalidParameter;
2236
2237     *matrix = *graphics->worldtrans;
2238     return Ok;
2239 }
2240
2241 GpStatus WINGDIPAPI GdipMeasureCharacterRanges(GpGraphics* graphics,
2242         GDIPCONST WCHAR* string, INT length, GDIPCONST GpFont* font,
2243         GDIPCONST RectF* layoutRect, GDIPCONST GpStringFormat *stringFormat,
2244         INT regionCount, GpRegion** regions)
2245 {
2246     if (!(graphics && string && font && layoutRect && stringFormat && regions))
2247         return InvalidParameter;
2248
2249     FIXME("stub: %p %s %d %p %p %p %d %p\n", graphics, debugstr_w(string),
2250             length, font, layoutRect, stringFormat, regionCount, regions);
2251
2252     return NotImplemented;
2253 }
2254
2255 /* Find the smallest rectangle that bounds the text when it is printed in rect
2256  * according to the format options listed in format. If rect has 0 width and
2257  * height, then just find the smallest rectangle that bounds the text when it's
2258  * printed at location (rect->X, rect-Y). */
2259 GpStatus WINGDIPAPI GdipMeasureString(GpGraphics *graphics,
2260     GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
2261     GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format, RectF *bounds,
2262     INT *codepointsfitted, INT *linesfilled)
2263 {
2264     HFONT oldfont;
2265     WCHAR* stringdup;
2266     INT sum = 0, height = 0, fit, fitcpy, max_width = 0, i, j, lret, nwidth,
2267         nheight;
2268     SIZE size;
2269
2270     if(!graphics || !string || !font || !rect)
2271         return InvalidParameter;
2272
2273     if(codepointsfitted || linesfilled){
2274         FIXME("not implemented for given parameters\n");
2275         return NotImplemented;
2276     }
2277
2278     if(format)
2279         TRACE("may be ignoring some format flags: attr %x\n", format->attr);
2280
2281     if(length == -1) length = lstrlenW(string);
2282
2283     stringdup = GdipAlloc(length * sizeof(WCHAR));
2284     if(!stringdup) return OutOfMemory;
2285
2286     oldfont = SelectObject(graphics->hdc, CreateFontIndirectW(&font->lfw));
2287     nwidth = roundr(rect->Width);
2288     nheight = roundr(rect->Height);
2289
2290     if((nwidth == 0) && (nheight == 0))
2291         nwidth = nheight = INT_MAX;
2292
2293     for(i = 0, j = 0; i < length; i++){
2294         if(!isprintW(string[i]) && (string[i] != '\n'))
2295             continue;
2296
2297         stringdup[j] = string[i];
2298         j++;
2299     }
2300
2301     stringdup[j] = 0;
2302     length = j;
2303
2304     while(sum < length){
2305         GetTextExtentExPointW(graphics->hdc, stringdup + sum, length - sum,
2306                               nwidth, &fit, NULL, &size);
2307         fitcpy = fit;
2308
2309         if(fit == 0)
2310             break;
2311
2312         for(lret = 0; lret < fit; lret++)
2313             if(*(stringdup + sum + lret) == '\n')
2314                 break;
2315
2316         /* Line break code (may look strange, but it imitates windows). */
2317         if(lret < fit)
2318             fit = lret;    /* this is not an off-by-one error */
2319         else if(fit < (length - sum)){
2320             if(*(stringdup + sum + fit) == ' ')
2321                 while(*(stringdup + sum + fit) == ' ')
2322                     fit++;
2323             else
2324                 while(*(stringdup + sum + fit - 1) != ' '){
2325                     fit--;
2326
2327                     if(*(stringdup + sum + fit) == '\t')
2328                         break;
2329
2330                     if(fit == 0){
2331                         fit = fitcpy;
2332                         break;
2333                     }
2334                 }
2335         }
2336
2337         GetTextExtentExPointW(graphics->hdc, stringdup + sum, fit,
2338                               nwidth, &j, NULL, &size);
2339
2340         sum += fit + (lret < fitcpy ? 1 : 0);
2341         height += size.cy;
2342         max_width = max(max_width, size.cx);
2343
2344         if(height > nheight)
2345             break;
2346
2347         /* Stop if this was a linewrap (but not if it was a linebreak). */
2348         if((lret == fitcpy) && format && (format->attr & StringFormatFlagsNoWrap))
2349             break;
2350     }
2351
2352     bounds->X = rect->X;
2353     bounds->Y = rect->Y;
2354     bounds->Width = (REAL)max_width;
2355     bounds->Height = (REAL) min(height, nheight);
2356
2357     GdipFree(stringdup);
2358     DeleteObject(SelectObject(graphics->hdc, oldfont));
2359
2360     return Ok;
2361 }
2362
2363 GpStatus WINGDIPAPI GdipRestoreGraphics(GpGraphics *graphics, GraphicsState state)
2364 {
2365     static int calls;
2366
2367     if(!graphics)
2368         return InvalidParameter;
2369
2370     if(!(calls++))
2371         FIXME("graphics state not implemented\n");
2372
2373     return NotImplemented;
2374 }
2375
2376 GpStatus WINGDIPAPI GdipRotateWorldTransform(GpGraphics *graphics, REAL angle,
2377     GpMatrixOrder order)
2378 {
2379     if(!graphics)
2380         return InvalidParameter;
2381
2382     return GdipRotateMatrix(graphics->worldtrans, angle, order);
2383 }
2384
2385 GpStatus WINGDIPAPI GdipSaveGraphics(GpGraphics *graphics, GraphicsState *state)
2386 {
2387     static int calls;
2388
2389     if(!graphics || !state)
2390         return InvalidParameter;
2391
2392     if(!(calls++))
2393         FIXME("graphics state not implemented\n");
2394
2395     return NotImplemented;
2396 }
2397
2398 GpStatus WINGDIPAPI GdipScaleWorldTransform(GpGraphics *graphics, REAL sx,
2399     REAL sy, GpMatrixOrder order)
2400 {
2401     if(!graphics)
2402         return InvalidParameter;
2403
2404     return GdipScaleMatrix(graphics->worldtrans, sx, sy, order);
2405 }
2406
2407 GpStatus WINGDIPAPI GdipSetCompositingMode(GpGraphics *graphics,
2408     CompositingMode mode)
2409 {
2410     if(!graphics)
2411         return InvalidParameter;
2412
2413     graphics->compmode = mode;
2414
2415     return Ok;
2416 }
2417
2418 GpStatus WINGDIPAPI GdipSetCompositingQuality(GpGraphics *graphics,
2419     CompositingQuality quality)
2420 {
2421     if(!graphics)
2422         return InvalidParameter;
2423
2424     graphics->compqual = quality;
2425
2426     return Ok;
2427 }
2428
2429 GpStatus WINGDIPAPI GdipSetInterpolationMode(GpGraphics *graphics,
2430     InterpolationMode mode)
2431 {
2432     if(!graphics)
2433         return InvalidParameter;
2434
2435     graphics->interpolation = mode;
2436
2437     return Ok;
2438 }
2439
2440 GpStatus WINGDIPAPI GdipSetPageScale(GpGraphics *graphics, REAL scale)
2441 {
2442     if(!graphics || (scale <= 0.0))
2443         return InvalidParameter;
2444
2445     graphics->scale = scale;
2446
2447     return Ok;
2448 }
2449
2450 GpStatus WINGDIPAPI GdipSetPageUnit(GpGraphics *graphics, GpUnit unit)
2451 {
2452     if(!graphics || (unit == UnitWorld))
2453         return InvalidParameter;
2454
2455     graphics->unit = unit;
2456
2457     return Ok;
2458 }
2459
2460 GpStatus WINGDIPAPI GdipSetPixelOffsetMode(GpGraphics *graphics, PixelOffsetMode
2461     mode)
2462 {
2463     if(!graphics)
2464         return InvalidParameter;
2465
2466     graphics->pixeloffset = mode;
2467
2468     return Ok;
2469 }
2470
2471 GpStatus WINGDIPAPI GdipSetSmoothingMode(GpGraphics *graphics, SmoothingMode mode)
2472 {
2473     if(!graphics)
2474         return InvalidParameter;
2475
2476     graphics->smoothing = mode;
2477
2478     return Ok;
2479 }
2480
2481 GpStatus WINGDIPAPI GdipSetTextRenderingHint(GpGraphics *graphics,
2482     TextRenderingHint hint)
2483 {
2484     if(!graphics)
2485         return InvalidParameter;
2486
2487     graphics->texthint = hint;
2488
2489     return Ok;
2490 }
2491
2492 GpStatus WINGDIPAPI GdipSetWorldTransform(GpGraphics *graphics, GpMatrix *matrix)
2493 {
2494     if(!graphics || !matrix)
2495         return InvalidParameter;
2496
2497     GdipDeleteMatrix(graphics->worldtrans);
2498     return GdipCloneMatrix(matrix, &graphics->worldtrans);
2499 }
2500
2501 GpStatus WINGDIPAPI GdipTranslateWorldTransform(GpGraphics *graphics, REAL dx,
2502     REAL dy, GpMatrixOrder order)
2503 {
2504     if(!graphics)
2505         return InvalidParameter;
2506
2507     return GdipTranslateMatrix(graphics->worldtrans, dx, dy, order);
2508 }
2509
2510 GpStatus WINGDIPAPI GdipSetClipRectI(GpGraphics *graphics, INT x, INT y,
2511                                      INT width, INT height,
2512                                      CombineMode combineMode)
2513 {
2514     static int calls;
2515
2516     if(!(calls++))
2517         FIXME("not implemented\n");
2518
2519     return NotImplemented;
2520 }
2521
2522 GpStatus WINGDIPAPI GdipSetClipRegion(GpGraphics *graphics, GpRegion *region,
2523                                      CombineMode combineMode)
2524 {
2525     static int calls;
2526
2527     if(!(calls++))
2528         FIXME("not implemented\n");
2529
2530     return NotImplemented;
2531 }
2532
2533 GpStatus WINGDIPAPI GdipSetMetafileDownLevelRasterizationLimit(GpGraphics *graphics,
2534     UINT limitDpi)
2535 {
2536     static int calls;
2537
2538     if(!(calls++))
2539         FIXME("not implemented\n");
2540
2541     return NotImplemented;
2542 }
2543
2544 GpStatus WINGDIPAPI GdipDrawPolygon(GpGraphics *graphics,GpPen *pen,GDIPCONST GpPointF *points,
2545     INT count)
2546 {
2547     INT save_state;
2548     POINT *pti;
2549
2550     if(!graphics || !pen || count<=0)
2551         return InvalidParameter;
2552
2553     pti = GdipAlloc(sizeof(POINT) * count);
2554
2555     save_state = prepare_dc(graphics, pen);
2556     SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
2557
2558     transform_and_round_points(graphics, pti, (GpPointF*)points, count);
2559     Polygon(graphics->hdc, pti, count);
2560
2561     restore_dc(graphics, save_state);
2562     GdipFree(pti);
2563
2564     return Ok;
2565 }
2566
2567 GpStatus WINGDIPAPI GdipDrawPolygonI(GpGraphics *graphics,GpPen *pen,GDIPCONST GpPoint *points,
2568     INT count)
2569 {
2570     GpStatus ret;
2571     GpPointF *ptf;
2572     INT i;
2573
2574     if(count<=0)    return InvalidParameter;
2575     ptf = GdipAlloc(sizeof(GpPointF) * count);
2576
2577     for(i = 0;i < count; i++){
2578         ptf[i].X = (REAL)points[i].X;
2579         ptf[i].Y = (REAL)points[i].Y;
2580     }
2581
2582     ret = GdipDrawPolygon(graphics,pen,ptf,count);
2583     GdipFree(ptf);
2584
2585     return ret;
2586 }
2587
2588 GpStatus WINGDIPAPI GdipGetDpiX(GpGraphics *graphics, REAL* dpi)
2589 {
2590     if(!graphics || !dpi)
2591         return InvalidParameter;
2592
2593     *dpi = (REAL)GetDeviceCaps(graphics->hdc, LOGPIXELSX);
2594
2595     return Ok;
2596 }
2597
2598 GpStatus WINGDIPAPI GdipGetDpiY(GpGraphics *graphics, REAL* dpi)
2599 {
2600     if(!graphics || !dpi)
2601         return InvalidParameter;
2602
2603     *dpi = (REAL)GetDeviceCaps(graphics->hdc, LOGPIXELSY);
2604
2605     return Ok;
2606 }
2607
2608 GpStatus WINGDIPAPI GdipMultiplyWorldTransform(GpGraphics *graphics, GDIPCONST GpMatrix *matrix,
2609     GpMatrixOrder order)
2610 {
2611     GpMatrix m;
2612     GpStatus ret;
2613
2614     if(!graphics || !matrix)
2615         return InvalidParameter;
2616
2617     m = *(graphics->worldtrans);
2618
2619     ret = GdipMultiplyMatrix(&m, (GpMatrix*)matrix, order);
2620     if(ret == Ok)
2621         *(graphics->worldtrans) = m;
2622
2623     return ret;
2624 }
2625
2626 GpStatus WINGDIPAPI GdipGetDC(GpGraphics *graphics, HDC *hdc)
2627 {
2628     FIXME("(%p, %p): stub\n", graphics, hdc);
2629
2630     *hdc = NULL;
2631     return NotImplemented;
2632 }
2633
2634 GpStatus WINGDIPAPI GdipReleaseDC(GpGraphics *graphics, HDC hdc)
2635 {
2636     FIXME("(%p, %p): stub\n", graphics, hdc);
2637
2638     return NotImplemented;
2639 }
2640
2641 GpStatus WINGDIPAPI GdipGetClip(GpGraphics *graphics, GpRegion *region)
2642 {
2643    FIXME("(%p, %p): stub\n", graphics, region);
2644
2645    return NotImplemented;
2646 }
2647
2648 GpStatus WINGDIPAPI GdipTransformPoints(GpGraphics *graphics, GpCoordinateSpace dst_space,
2649                                         GpCoordinateSpace src_space, GpPointF *points, INT count)
2650 {
2651     FIXME("(%p, %d, %d, %p, %d): stub\n", graphics, dst_space, src_space, points, count);
2652
2653     return NotImplemented;
2654 }
2655
2656 GpStatus WINGDIPAPI GdipTransformPointsI(GpGraphics *graphics, GpCoordinateSpace dst_space,
2657                                          GpCoordinateSpace src_space, GpPoint *points, INT count)
2658 {
2659     FIXME("(%p, %d, %d, %p, %d): stub\n", graphics, dst_space, src_space, points, count);
2660
2661     return NotImplemented;
2662 }