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 GpStatus WINGDIPAPI GdipCreateMetafileFromEmf(HENHMETAFILE hemf, BOOL delete,
 801     GpMetafile **metafile)
 802 {
 803     static int calls;
 804
 805     if(!hemf || !metafile)
 806         return InvalidParameter;
 807
 808     if(!(calls++))
 809         FIXME("not implemented\n");
 810
 811     return NotImplemented;
 812 }
 813
 814 GpStatus WINGDIPAPI GdipCreateMetafileFromWmf(HMETAFILE hwmf, BOOL delete,
 815     GDIPCONST WmfPlaceableFileHeader * placeable, GpMetafile **metafile)
 816 {
 817     IStream *stream = NULL;
 818     UINT read;
 819     BYTE* copy;
 820     HENHMETAFILE hemf;
 821     GpStatus retval = GenericError;
 822
 823     if(!hwmf || !metafile || !placeable)
 824         return InvalidParameter;
 825
 826     *metafile = NULL;
 827     read = GetMetaFileBitsEx(hwmf, 0, NULL);
 828     if(!read)
 829         return GenericError;
 830     copy = GdipAlloc(read);
 831     GetMetaFileBitsEx(hwmf, read, copy);
 832
 833     hemf = SetWinMetaFileBits(read, copy, NULL, NULL);
 834     GdipFree(copy);
 835
 836     read = GetEnhMetaFileBits(hemf, 0, NULL);
 837     copy = GdipAlloc(read);
 838     GetEnhMetaFileBits(hemf, read, copy);
 839     DeleteEnhMetaFile(hemf);
 840
 841     if(CreateStreamOnHGlobal(copy, TRUE, &stream) != S_OK){
 842         ERR("could not make stream\n");
 843         GdipFree(copy);
 844         goto err;
 845     }
 846
 847     *metafile = GdipAlloc(sizeof(GpMetafile));
 848     if(!*metafile){
 849         retval = OutOfMemory;
 850         goto err;
 851     }
 852
 853     if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
 854         (LPVOID*) &((*metafile)->image.picture)) != S_OK)
 855         goto err;
 856
 857
 858     (*metafile)->image.type = ImageTypeMetafile;
 859     (*metafile)->bounds.X = ((REAL) placeable->BoundingBox.Left) / ((REAL) placeable->Inch);
 860     (*metafile)->bounds.Y = ((REAL) placeable->BoundingBox.Right) / ((REAL) placeable->Inch);
 861     (*metafile)->bounds.Width = ((REAL) (placeable->BoundingBox.Right
 862                     - placeable->BoundingBox.Left)) / ((REAL) placeable->Inch);
 863     (*metafile)->bounds.Height = ((REAL) (placeable->BoundingBox.Bottom
 864                    - placeable->BoundingBox.Top)) / ((REAL) placeable->Inch);
 865     (*metafile)->unit = UnitInch;
 866
 867     if(delete)
 868         DeleteMetaFile(hwmf);
 869
 870     return Ok;
 871
 872 err:
 873     GdipFree(*metafile);
 874     IStream_Release(stream);
 875     return retval;
 876 }
 877
 878 GpStatus WINGDIPAPI GdipCreateStreamOnFile(GDIPCONST WCHAR * filename,
 879     UINT access, IStream **stream)
 880 {
 881     DWORD dwMode;
 882     HRESULT ret;
 883
 884     if(!stream || !filename)
 885         return InvalidParameter;
 886
 887     if(access & GENERIC_WRITE)
 888         dwMode = STGM_SHARE_DENY_WRITE | STGM_WRITE | STGM_CREATE;
 889     else if(access & GENERIC_READ)
 890         dwMode = STGM_SHARE_DENY_WRITE | STGM_READ | STGM_FAILIFTHERE;
 891     else
 892         return InvalidParameter;
 893
 894     ret = SHCreateStreamOnFileW(filename, dwMode, stream);
 895
 896     return hresult_to_status(ret);
 897 }
 898
 899 GpStatus WINGDIPAPI GdipDeleteGraphics(GpGraphics *graphics)
 900 {
 901     if(!graphics) return InvalidParameter;
 902     if(graphics->hwnd)
 903         ReleaseDC(graphics->hwnd, graphics->hdc);
 904
 905     GdipDeleteMatrix(graphics->worldtrans);
 906     HeapFree(GetProcessHeap(), 0, graphics);
 907
 908     return Ok;
 909 }
 910
 911 GpStatus WINGDIPAPI GdipDrawArc(GpGraphics *graphics, GpPen *pen, REAL x,
 912     REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
 913 {
 914     INT save_state, num_pts;
 915     GpPointF points[MAX_ARC_PTS];
 916     GpStatus retval;
 917
 918     if(!graphics || !pen || width <= 0 || height <= 0)
 919         return InvalidParameter;
 920
 921     num_pts = arc2polybezier(points, x, y, width, height, startAngle, sweepAngle);
 922
 923     save_state = prepare_dc(graphics, pen);
 924
 925     retval = draw_polybezier(graphics, pen, points, num_pts, TRUE);
 926
 927     restore_dc(graphics, save_state);
 928
 929     return retval;
 930 }
 931
 932 GpStatus WINGDIPAPI GdipDrawArcI(GpGraphics *graphics, GpPen *pen, INT x,
 933     INT y, INT width, INT height, REAL startAngle, REAL sweepAngle)
 934 {
 935     INT save_state, num_pts;
 936     GpPointF points[MAX_ARC_PTS];
 937     GpStatus retval;
 938
 939     if(!graphics || !pen || width <= 0 || height <= 0)
 940         return InvalidParameter;
 941
 942     num_pts = arc2polybezier(points, x, y, width, height, startAngle, sweepAngle);
 943
 944     save_state = prepare_dc(graphics, pen);
 945
 946     retval = draw_polybezier(graphics, pen, points, num_pts, TRUE);
 947
 948     restore_dc(graphics, save_state);
 949
 950     return retval;
 951 }
 952
 953 GpStatus WINGDIPAPI GdipDrawBezier(GpGraphics *graphics, GpPen *pen, REAL x1,
 954     REAL y1, REAL x2, REAL y2, REAL x3, REAL y3, REAL x4, REAL y4)
 955 {
 956     INT save_state;
 957     GpPointF pt[4];
 958     GpStatus retval;
 959
 960     if(!graphics || !pen)
 961         return InvalidParameter;
 962
 963     pt[0].X = x1;
 964     pt[0].Y = y1;
 965     pt[1].X = x2;
 966     pt[1].Y = y2;
 967     pt[2].X = x3;
 968     pt[2].Y = y3;
 969     pt[3].X = x4;
 970     pt[3].Y = y4;
 971
 972     save_state = prepare_dc(graphics, pen);
 973
 974     retval = draw_polybezier(graphics, pen, pt, 4, TRUE);
 975
 976     restore_dc(graphics, save_state);
 977
 978     return retval;
 979 }
 980
 981 GpStatus WINGDIPAPI GdipDrawBezierI(GpGraphics *graphics, GpPen *pen, INT x1,
 982     INT y1, INT x2, INT y2, INT x3, INT y3, INT x4, INT y4)
 983 {
 984     INT save_state;
 985     GpPointF pt[4];
 986     GpStatus retval;
 987
 988     if(!graphics || !pen)
 989         return InvalidParameter;
 990
 991     pt[0].X = x1;
 992     pt[0].Y = y1;
 993     pt[1].X = x2;
 994     pt[1].Y = y2;
 995     pt[2].X = x3;
 996     pt[2].Y = y3;
 997     pt[3].X = x4;
 998     pt[3].Y = y4;
 999
1000     save_state = prepare_dc(graphics, pen);
1001
1002     retval = draw_polybezier(graphics, pen, pt, 4, TRUE);
1003
1004     restore_dc(graphics, save_state);
1005
1006     return retval;
1007 }
1008
1009 GpStatus WINGDIPAPI GdipDrawCurve(GpGraphics *graphics, GpPen *pen,
1010     GDIPCONST GpPointF *points, INT count)
1011 {
1012     return GdipDrawCurve2(graphics,pen,points,count,1.0);
1013 }
1014
1015 GpStatus WINGDIPAPI GdipDrawCurveI(GpGraphics *graphics, GpPen *pen,
1016     GDIPCONST GpPoint *points, INT count)
1017 {
1018     GpPointF *pointsF;
1019     GpStatus ret;
1020     INT i;
1021
1022     if(!points || count <= 0)
1023         return InvalidParameter;
1024
1025     pointsF = GdipAlloc(sizeof(GpPointF)*count);
1026     if(!pointsF)
1027         return OutOfMemory;
1028
1029     for(i = 0; i < count; i++){
1030         pointsF[i].X = (REAL)points[i].X;
1031         pointsF[i].Y = (REAL)points[i].Y;
1032     }
1033
1034     ret = GdipDrawCurve(graphics,pen,pointsF,count);
1035     GdipFree(pointsF);
1036
1037     return ret;
1038 }
1039
1040 /* Approximates cardinal spline with Bezier curves. */
1041 GpStatus WINGDIPAPI GdipDrawCurve2(GpGraphics *graphics, GpPen *pen,
1042     GDIPCONST GpPointF *points, INT count, REAL tension)
1043 {
1044     /* PolyBezier expects count*3-2 points. */
1045     INT i, len_pt = count*3-2, save_state;
1046     GpPointF *pt;
1047     REAL x1, x2, y1, y2;
1048     GpStatus retval;
1049
1050     if(!graphics || !pen)
1051         return InvalidParameter;
1052
1053     pt = GdipAlloc(len_pt * sizeof(GpPointF));
1054     tension = tension * TENSION_CONST;
1055
1056     calc_curve_bezier_endp(points[0].X, points[0].Y, points[1].X, points[1].Y,
1057         tension, &x1, &y1);
1058
1059     pt[0].X = points[0].X;
1060     pt[0].Y = points[0].Y;
1061     pt[1].X = x1;
1062     pt[1].Y = y1;
1063
1064     for(i = 0; i < count-2; i++){
1065         calc_curve_bezier(&(points[i]), tension, &x1, &y1, &x2, &y2);
1066
1067         pt[3*i+2].X = x1;
1068         pt[3*i+2].Y = y1;
1069         pt[3*i+3].X = points[i+1].X;
1070         pt[3*i+3].Y = points[i+1].Y;
1071         pt[3*i+4].X = x2;
1072         pt[3*i+4].Y = y2;
1073     }
1074
1075     calc_curve_bezier_endp(points[count-1].X, points[count-1].Y,
1076         points[count-2].X, points[count-2].Y, tension, &x1, &y1);
1077
1078     pt[len_pt-2].X = x1;
1079     pt[len_pt-2].Y = y1;
1080     pt[len_pt-1].X = points[count-1].X;
1081     pt[len_pt-1].Y = points[count-1].Y;
1082
1083     save_state = prepare_dc(graphics, pen);
1084
1085     retval = draw_polybezier(graphics, pen, pt, len_pt, TRUE);
1086
1087     GdipFree(pt);
1088     restore_dc(graphics, save_state);
1089
1090     return retval;
1091 }
1092
1093 GpStatus WINGDIPAPI GdipDrawCurve2I(GpGraphics *graphics, GpPen *pen,
1094     GDIPCONST GpPoint *points, INT count, REAL tension)
1095 {
1096     GpPointF *pointsF;
1097     GpStatus ret;
1098     INT i;
1099
1100     if(!points || count <= 0)
1101         return InvalidParameter;
1102
1103     pointsF = GdipAlloc(sizeof(GpPointF)*count);
1104     if(!pointsF)
1105         return OutOfMemory;
1106
1107     for(i = 0; i < count; i++){
1108         pointsF[i].X = (REAL)points[i].X;
1109         pointsF[i].Y = (REAL)points[i].Y;
1110     }
1111
1112     ret = GdipDrawCurve2(graphics,pen,pointsF,count,tension);
1113     GdipFree(pointsF);
1114
1115     return ret;
1116 }
1117
1118 GpStatus WINGDIPAPI GdipDrawImage(GpGraphics *graphics, GpImage *image, REAL x, REAL y)
1119 {
1120     /* IPicture::Render uses LONG coords */
1121     return GdipDrawImageI(graphics,image,roundr(x),roundr(y));
1122 }
1123
1124 GpStatus WINGDIPAPI GdipDrawImageI(GpGraphics *graphics, GpImage *image, INT x,
1125     INT y)
1126 {
1127     UINT width, height, srcw, srch;
1128
1129     if(!graphics || !image)
1130         return InvalidParameter;
1131
1132     GdipGetImageWidth(image, &width);
1133     GdipGetImageHeight(image, &height);
1134
1135     srcw = width * (((REAL) INCH_HIMETRIC) /
1136             ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSX)));
1137     srch = height * (((REAL) INCH_HIMETRIC) /
1138             ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSY)));
1139
1140     if(image->type != ImageTypeMetafile){
1141         y += height;
1142         height *= -1;
1143     }
1144
1145     IPicture_Render(image->picture, graphics->hdc, x, y, width, height,
1146                     0, 0, srcw, srch, NULL);
1147
1148     return Ok;
1149 }
1150
1151 /* FIXME: partially implemented (only works for rectangular parallelograms) */
1152 GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image,
1153      GDIPCONST GpPointF *points, INT count, REAL srcx, REAL srcy, REAL srcwidth,
1154      REAL srcheight, GpUnit srcUnit, GDIPCONST GpImageAttributes* imageAttributes,
1155      DrawImageAbort callback, VOID * callbackData)
1156 {
1157     GpPointF ptf[3];
1158     POINT pti[3];
1159     REAL dx, dy;
1160
1161     TRACE("%p %p %p %d %f %f %f %f %d %p %p %p\n", graphics, image, points, count,
1162           srcx, srcy, srcwidth, srcheight, srcUnit, imageAttributes, callback,
1163           callbackData);
1164
1165     if(!graphics || !image || !points || count != 3)
1166          return InvalidParameter;
1167
1168     if(srcUnit == UnitInch)
1169         dx = dy = (REAL) INCH_HIMETRIC;
1170     else if(srcUnit == UnitPixel){
1171         dx = ((REAL) INCH_HIMETRIC) /
1172              ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSX));
1173         dy = ((REAL) INCH_HIMETRIC) /
1174              ((REAL) GetDeviceCaps(graphics->hdc, LOGPIXELSY));
1175     }
1176     else
1177         return NotImplemented;
1178
1179     memcpy(ptf, points, 3 * sizeof(GpPointF));
1180     transform_and_round_points(graphics, pti, ptf, 3);
1181
1182     /* IPicture renders bitmaps with the y-axis reversed
1183      * FIXME: flipping for unknown image type might not be correct. */
1184     if(image->type != ImageTypeMetafile){
1185         INT temp;
1186         temp = pti[0].y;
1187         pti[0].y = pti[2].y;
1188         pti[2].y = temp;
1189     }
1190
1191     if(IPicture_Render(image->picture, graphics->hdc,
1192         pti[0].x, pti[0].y, pti[1].x - pti[0].x, pti[2].y - pti[0].y,
1193         srcx * dx, srcy * dy,
1194         srcwidth * dx, srcheight * dy,
1195         NULL) != S_OK){
1196         if(callback)
1197             callback(callbackData);
1198         return GenericError;
1199     }
1200
1201     return Ok;
1202 }
1203
1204 GpStatus WINGDIPAPI GdipDrawImagePointsRectI(GpGraphics *graphics, GpImage *image,
1205      GDIPCONST GpPoint *points, INT count, INT srcx, INT srcy, INT srcwidth,
1206      INT srcheight, GpUnit srcUnit, GDIPCONST GpImageAttributes* imageAttributes,
1207      DrawImageAbort callback, VOID * callbackData)
1208 {
1209     GpPointF pointsF[3];
1210     INT i;
1211
1212     if(!points || count!=3)
1213         return InvalidParameter;
1214
1215     for(i = 0; i < count; i++){
1216         pointsF[i].X = (REAL)points[i].X;
1217         pointsF[i].Y = (REAL)points[i].Y;
1218     }
1219
1220     return GdipDrawImagePointsRect(graphics, image, pointsF, count, (REAL)srcx, (REAL)srcy,
1221                                    (REAL)srcwidth, (REAL)srcheight, srcUnit, imageAttributes,
1222                                    callback, callbackData);
1223 }
1224
1225 GpStatus WINGDIPAPI GdipDrawImageRectRect(GpGraphics *graphics, GpImage *image,
1226     REAL dstx, REAL dsty, REAL dstwidth, REAL dstheight, REAL srcx, REAL srcy,
1227     REAL srcwidth, REAL srcheight, GpUnit srcUnit,
1228     GDIPCONST GpImageAttributes* imageattr, DrawImageAbort callback,
1229     VOID * callbackData)
1230 {
1231     GpPointF points[3];
1232
1233     points[0].X = dstx;
1234     points[0].Y = dsty;
1235     points[1].X = dstx + dstwidth;
1236     points[1].Y = dsty;
1237     points[2].X = dstx;
1238     points[2].Y = dsty + dstheight;
1239
1240     return GdipDrawImagePointsRect(graphics, image, points, 3, srcx, srcy,
1241                srcwidth, srcheight, srcUnit, imageattr, callback, callbackData);
1242 }
1243
1244 GpStatus WINGDIPAPI GdipDrawImageRectRectI(GpGraphics *graphics, GpImage *image,
1245         INT dstx, INT dsty, INT dstwidth, INT dstheight, INT srcx, INT srcy,
1246         INT srcwidth, INT srcheight, GpUnit srcUnit,
1247         GDIPCONST GpImageAttributes* imageAttributes, DrawImageAbort callback,
1248         VOID * callbackData)
1249 {
1250    GpPointF points[3];
1251
1252     points[0].X = dstx;
1253     points[0].Y = dsty;
1254     points[1].X = dstx + dstwidth;
1255     points[1].Y = dsty;
1256     points[2].X = dstx;
1257     points[2].Y = dsty + dstheight;
1258
1259     return GdipDrawImagePointsRect(graphics, image, points, 3, srcx, srcy,
1260                srcwidth, srcheight, srcUnit, imageAttributes, callback, callbackData);
1261 }
1262
1263 GpStatus WINGDIPAPI GdipDrawImageRect(GpGraphics *graphics, GpImage *image,
1264     REAL x, REAL y, REAL width, REAL height)
1265 {
1266     RectF bounds;
1267     GpUnit unit;
1268     GpStatus ret;
1269
1270     if(!graphics || !image)
1271         return InvalidParameter;
1272
1273     ret = GdipGetImageBounds(image, &bounds, &unit);
1274     if(ret != Ok)
1275         return ret;
1276
1277     return GdipDrawImageRectRect(graphics, image, x, y, width, height,
1278                                  bounds.X, bounds.Y, bounds.Width, bounds.Height,
1279                                  unit, NULL, NULL, NULL);
1280 }
1281
1282 GpStatus WINGDIPAPI GdipDrawImageRectI(GpGraphics *graphics, GpImage *image,
1283     INT x, INT y, INT width, INT height)
1284 {
1285     return GdipDrawImageRect(graphics, image, (REAL)x, (REAL)y, (REAL)width, (REAL)height);
1286 }
1287
1288 GpStatus WINGDIPAPI GdipDrawLine(GpGraphics *graphics, GpPen *pen, REAL x1,
1289     REAL y1, REAL x2, REAL y2)
1290 {
1291     INT save_state;
1292     GpPointF pt[2];
1293     GpStatus retval;
1294
1295     if(!pen || !graphics)
1296         return InvalidParameter;
1297
1298     pt[0].X = x1;
1299     pt[0].Y = y1;
1300     pt[1].X = x2;
1301     pt[1].Y = y2;
1302
1303     save_state = prepare_dc(graphics, pen);
1304
1305     retval = draw_polyline(graphics, pen, pt, 2, TRUE);
1306
1307     restore_dc(graphics, save_state);
1308
1309     return retval;
1310 }
1311
1312 GpStatus WINGDIPAPI GdipDrawLineI(GpGraphics *graphics, GpPen *pen, INT x1,
1313     INT y1, INT x2, INT y2)
1314 {
1315     INT save_state;
1316     GpPointF pt[2];
1317     GpStatus retval;
1318
1319     if(!pen || !graphics)
1320         return InvalidParameter;
1321
1322     pt[0].X = (REAL)x1;
1323     pt[0].Y = (REAL)y1;
1324     pt[1].X = (REAL)x2;
1325     pt[1].Y = (REAL)y2;
1326
1327     save_state = prepare_dc(graphics, pen);
1328
1329     retval = draw_polyline(graphics, pen, pt, 2, TRUE);
1330
1331     restore_dc(graphics, save_state);
1332
1333     return retval;
1334 }
1335
1336 GpStatus WINGDIPAPI GdipDrawLines(GpGraphics *graphics, GpPen *pen, GDIPCONST
1337     GpPointF *points, INT count)
1338 {
1339     INT save_state;
1340     GpStatus retval;
1341
1342     if(!pen || !graphics || (count < 2))
1343         return InvalidParameter;
1344
1345     save_state = prepare_dc(graphics, pen);
1346
1347     retval = draw_polyline(graphics, pen, points, count, TRUE);
1348
1349     restore_dc(graphics, save_state);
1350
1351     return retval;
1352 }
1353
1354 GpStatus WINGDIPAPI GdipDrawLinesI(GpGraphics *graphics, GpPen *pen, GDIPCONST
1355     GpPoint *points, INT count)
1356 {
1357     INT save_state;
1358     GpStatus retval;
1359     GpPointF *ptf = NULL;
1360     int i;
1361
1362     if(!pen || !graphics || (count < 2))
1363         return InvalidParameter;
1364
1365     ptf = GdipAlloc(count * sizeof(GpPointF));
1366     if(!ptf) return OutOfMemory;
1367
1368     for(i = 0; i < count; i ++){
1369         ptf[i].X = (REAL) points[i].X;
1370         ptf[i].Y = (REAL) points[i].Y;
1371     }
1372
1373     save_state = prepare_dc(graphics, pen);
1374
1375     retval = draw_polyline(graphics, pen, ptf, count, TRUE);
1376
1377     restore_dc(graphics, save_state);
1378
1379     GdipFree(ptf);
1380     return retval;
1381 }
1382
1383 GpStatus WINGDIPAPI GdipDrawPath(GpGraphics *graphics, GpPen *pen, GpPath *path)
1384 {
1385     INT save_state;
1386     GpStatus retval;
1387
1388     if(!pen || !graphics)
1389         return InvalidParameter;
1390
1391     save_state = prepare_dc(graphics, pen);
1392
1393     retval = draw_poly(graphics, pen, path->pathdata.Points,
1394                        path->pathdata.Types, path->pathdata.Count, TRUE);
1395
1396     restore_dc(graphics, save_state);
1397
1398     return retval;
1399 }
1400
1401 GpStatus WINGDIPAPI GdipDrawPie(GpGraphics *graphics, GpPen *pen, REAL x,
1402     REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
1403 {
1404     INT save_state;
1405
1406     if(!graphics || !pen)
1407         return InvalidParameter;
1408
1409     save_state = prepare_dc(graphics, pen);
1410     SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1411
1412     draw_pie(graphics, x, y, width, height, startAngle, sweepAngle);
1413
1414     restore_dc(graphics, save_state);
1415
1416     return Ok;
1417 }
1418
1419 GpStatus WINGDIPAPI GdipDrawPieI(GpGraphics *graphics, GpPen *pen, INT x,
1420     INT y, INT width, INT height, REAL startAngle, REAL sweepAngle)
1421 {
1422     return GdipDrawPie(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height,startAngle,sweepAngle);
1423 }
1424
1425 GpStatus WINGDIPAPI GdipDrawRectangle(GpGraphics *graphics, GpPen *pen, REAL x,
1426     REAL y, REAL width, REAL height)
1427 {
1428     INT save_state;
1429     GpPointF ptf[4];
1430     POINT pti[4];
1431
1432     if(!pen || !graphics)
1433         return InvalidParameter;
1434
1435     ptf[0].X = x;
1436     ptf[0].Y = y;
1437     ptf[1].X = x + width;
1438     ptf[1].Y = y;
1439     ptf[2].X = x + width;
1440     ptf[2].Y = y + height;
1441     ptf[3].X = x;
1442     ptf[3].Y = y + height;
1443
1444     save_state = prepare_dc(graphics, pen);
1445     SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1446
1447     transform_and_round_points(graphics, pti, ptf, 4);
1448     Polygon(graphics->hdc, pti, 4);
1449
1450     restore_dc(graphics, save_state);
1451
1452     return Ok;
1453 }
1454
1455 GpStatus WINGDIPAPI GdipDrawRectangleI(GpGraphics *graphics, GpPen *pen, INT x,
1456     INT y, INT width, INT height)
1457 {
1458     return GdipDrawRectangle(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
1459 }
1460
1461 GpStatus WINGDIPAPI GdipDrawRectangles(GpGraphics *graphics, GpPen *pen,
1462     GDIPCONST GpRectF* rects, INT count)
1463 {
1464     GpPointF *ptf;
1465     POINT *pti;
1466     INT save_state, i;
1467
1468     if(!graphics || !pen || !rects || count < 1)
1469         return InvalidParameter;
1470
1471     ptf = GdipAlloc(4 * count * sizeof(GpPointF));
1472     pti = GdipAlloc(4 * count * sizeof(POINT));
1473
1474     if(!ptf || !pti){
1475         GdipFree(ptf);
1476         GdipFree(pti);
1477         return OutOfMemory;
1478     }
1479
1480     for(i = 0; i < count; i++){
1481         ptf[4 * i + 3].X = ptf[4 * i].X = rects[i].X;
1482         ptf[4 * i + 1].Y = ptf[4 * i].Y = rects[i].Y;
1483         ptf[4 * i + 2].X = ptf[4 * i + 1].X = rects[i].X + rects[i].Width;
1484         ptf[4 * i + 3].Y = ptf[4 * i + 2].Y = rects[i].Y + rects[i].Height;
1485     }
1486
1487     save_state = prepare_dc(graphics, pen);
1488     SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
1489
1490     transform_and_round_points(graphics, pti, ptf, 4 * count);
1491
1492     for(i = 0; i < count; i++)
1493         Polygon(graphics->hdc, &pti[4 * i], 4);
1494
1495     restore_dc(graphics, save_state);
1496
1497     GdipFree(ptf);
1498     GdipFree(pti);
1499
1500     return Ok;
1501 }
1502
1503 GpStatus WINGDIPAPI GdipDrawRectanglesI(GpGraphics *graphics, GpPen *pen,
1504     GDIPCONST GpRect* rects, INT count)
1505 {
1506     GpRectF *rectsF;
1507     GpStatus ret;
1508     INT i;
1509
1510     if(!rects || count<=0)
1511         return InvalidParameter;
1512
1513     rectsF = GdipAlloc(sizeof(GpRectF) * count);
1514     if(!rectsF)
1515         return OutOfMemory;
1516
1517     for(i = 0;i < count;i++){
1518         rectsF[i].X      = (REAL)rects[i].X;
1519         rectsF[i].Y      = (REAL)rects[i].Y;
1520         rectsF[i].Width  = (REAL)rects[i].Width;
1521         rectsF[i].Height = (REAL)rects[i].Height;
1522     }
1523
1524     ret = GdipDrawRectangles(graphics, pen, rectsF, count);
1525     GdipFree(rectsF);
1526
1527     return ret;
1528 }
1529
1530 GpStatus WINGDIPAPI GdipDrawString(GpGraphics *graphics, GDIPCONST WCHAR *string,
1531     INT length, GDIPCONST GpFont *font, GDIPCONST RectF *rect,
1532     GDIPCONST GpStringFormat *format, GDIPCONST GpBrush *brush)
1533 {
1534     HRGN rgn = NULL;
1535     HFONT gdifont;
1536     LOGFONTW lfw;
1537     TEXTMETRICW textmet;
1538     GpPointF pt[2], rectcpy[4];
1539     POINT corners[4];
1540     WCHAR* stringdup;
1541     REAL angle, ang_cos, ang_sin, rel_width, rel_height;
1542     INT sum = 0, height = 0, fit, fitcpy, save_state, i, j, lret, nwidth,
1543         nheight;
1544     SIZE size;
1545     RECT drawcoord;
1546
1547     if(!graphics || !string || !font || !brush || !rect)
1548         return InvalidParameter;
1549
1550     if((brush->bt != BrushTypeSolidColor)){
1551         FIXME("not implemented for given parameters\n");
1552         return NotImplemented;
1553     }
1554
1555     if(format)
1556         TRACE("may be ignoring some format flags: attr %x\n", format->attr);
1557
1558     if(length == -1) length = lstrlenW(string);
1559
1560     stringdup = GdipAlloc(length * sizeof(WCHAR));
1561     if(!stringdup) return OutOfMemory;
1562
1563     save_state = SaveDC(graphics->hdc);
1564     SetBkMode(graphics->hdc, TRANSPARENT);
1565     SetTextColor(graphics->hdc, brush->lb.lbColor);
1566
1567     rectcpy[3].X = rectcpy[0].X = rect->X;
1568     rectcpy[1].Y = rectcpy[0].Y = rect->Y;
1569     rectcpy[2].X = rectcpy[1].X = rect->X + rect->Width;
1570     rectcpy[3].Y = rectcpy[2].Y = rect->Y + rect->Height;
1571     transform_and_round_points(graphics, corners, rectcpy, 4);
1572
1573     if(roundr(rect->Width) == 0 && roundr(rect->Height) == 0){
1574         rel_width = rel_height = 1.0;
1575         nwidth = nheight = INT_MAX;
1576     }
1577     else{
1578         rel_width = sqrt((corners[1].x - corners[0].x) * (corners[1].x - corners[0].x) +
1579                          (corners[1].y - corners[0].y) * (corners[1].y - corners[0].y))
1580                          / rect->Width;
1581         rel_height = sqrt((corners[2].x - corners[1].x) * (corners[2].x - corners[1].x) +
1582                           (corners[2].y - corners[1].y) * (corners[2].y - corners[1].y))
1583                           / rect->Height;
1584
1585         nwidth = roundr(rel_width * rect->Width);
1586         nheight = roundr(rel_height * rect->Height);
1587         rgn = CreatePolygonRgn(corners, 4, ALTERNATE);
1588         SelectClipRgn(graphics->hdc, rgn);
1589     }
1590
1591     /* Use gdi to find the font, then perform transformations on it (height,
1592      * width, angle). */
1593     SelectObject(graphics->hdc, CreateFontIndirectW(&font->lfw));
1594     GetTextMetricsW(graphics->hdc, &textmet);
1595     lfw = font->lfw;
1596
1597     lfw.lfHeight = roundr(((REAL)lfw.lfHeight) * rel_height);
1598     lfw.lfWidth = roundr(textmet.tmAveCharWidth * rel_width);
1599
1600     pt[0].X = 0.0;
1601     pt[0].Y = 0.0;
1602     pt[1].X = 1.0;
1603     pt[1].Y = 0.0;
1604     GdipTransformMatrixPoints(graphics->worldtrans, pt, 2);
1605     angle = gdiplus_atan2((pt[1].Y - pt[0].Y), (pt[1].X - pt[0].X));
1606     ang_cos = cos(angle);
1607     ang_sin = sin(angle);
1608     lfw.lfEscapement = lfw.lfOrientation = -roundr((angle / M_PI) * 1800.0);
1609
1610     gdifont = CreateFontIndirectW(&lfw);
1611     DeleteObject(SelectObject(graphics->hdc, CreateFontIndirectW(&lfw)));
1612
1613     for(i = 0, j = 0; i < length; i++){
1614         if(!isprintW(string[i]) && (string[i] != '\n'))
1615             continue;
1616
1617         stringdup[j] = string[i];
1618         j++;
1619     }
1620
1621     stringdup[j] = 0;
1622     length = j;
1623
1624     while(sum < length){
1625         drawcoord.left = corners[0].x + roundr(ang_sin * (REAL) height);
1626         drawcoord.top = corners[0].y + roundr(ang_cos * (REAL) height);
1627
1628         GetTextExtentExPointW(graphics->hdc, stringdup + sum, length - sum,
1629                               nwidth, &fit, NULL, &size);
1630         fitcpy = fit;
1631
1632         if(fit == 0){
1633             DrawTextW(graphics->hdc, stringdup + sum, 1, &drawcoord, DT_NOCLIP |
1634                       DT_EXPANDTABS);
1635             break;
1636         }
1637
1638         for(lret = 0; lret < fit; lret++)
1639             if(*(stringdup + sum + lret) == '\n')
1640                 break;
1641
1642         /* Line break code (may look strange, but it imitates windows). */
1643         if(lret < fit)
1644             fit = lret;    /* this is not an off-by-one error */
1645         else if(fit < (length - sum)){
1646             if(*(stringdup + sum + fit) == ' ')
1647                 while(*(stringdup + sum + fit) == ' ')
1648                     fit++;
1649             else
1650                 while(*(stringdup + sum + fit - 1) != ' '){
1651                     fit--;
1652
1653                     if(*(stringdup + sum + fit) == '\t')
1654                         break;
1655
1656                     if(fit == 0){
1657                         fit = fitcpy;
1658                         break;
1659                     }
1660                 }
1661         }
1662         DrawTextW(graphics->hdc, stringdup + sum, min(length - sum, fit),
1663                   &drawcoord, DT_NOCLIP | DT_EXPANDTABS);
1664
1665         sum += fit + (lret < fitcpy ? 1 : 0);
1666         height += size.cy;
1667
1668         if(height > nheight)
1669             break;
1670
1671         /* Stop if this was a linewrap (but not if it was a linebreak). */
1672         if((lret == fitcpy) && format && (format->attr & StringFormatFlagsNoWrap))
1673             break;
1674     }
1675
1676     GdipFree(stringdup);
1677     DeleteObject(rgn);
1678     DeleteObject(gdifont);
1679
1680     RestoreDC(graphics->hdc, save_state);
1681
1682     return Ok;
1683 }
1684
1685 GpStatus WINGDIPAPI GdipFillEllipse(GpGraphics *graphics, GpBrush *brush, REAL x,
1686     REAL y, REAL width, REAL height)
1687 {
1688     INT save_state;
1689     GpPointF ptf[2];
1690     POINT pti[2];
1691
1692     if(!graphics || !brush)
1693         return InvalidParameter;
1694
1695     ptf[0].X = x;
1696     ptf[0].Y = y;
1697     ptf[1].X = x + width;
1698     ptf[1].Y = y + height;
1699
1700     save_state = SaveDC(graphics->hdc);
1701     EndPath(graphics->hdc);
1702     SelectObject(graphics->hdc, brush->gdibrush);
1703     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1704
1705     transform_and_round_points(graphics, pti, ptf, 2);
1706
1707     Ellipse(graphics->hdc, pti[0].x, pti[0].y, pti[1].x, pti[1].y);
1708
1709     RestoreDC(graphics->hdc, save_state);
1710
1711     return Ok;
1712 }
1713
1714 GpStatus WINGDIPAPI GdipFillEllipseI(GpGraphics *graphics, GpBrush *brush, INT x,
1715     INT y, INT width, INT height)
1716 {
1717     return GdipFillEllipse(graphics,brush,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
1718 }
1719
1720 GpStatus WINGDIPAPI GdipFillPath(GpGraphics *graphics, GpBrush *brush, GpPath *path)
1721 {
1722     INT save_state;
1723     GpStatus retval;
1724
1725     if(!brush || !graphics || !path)
1726         return InvalidParameter;
1727
1728     save_state = SaveDC(graphics->hdc);
1729     EndPath(graphics->hdc);
1730     SelectObject(graphics->hdc, brush->gdibrush);
1731     SetPolyFillMode(graphics->hdc, (path->fill == FillModeAlternate ? ALTERNATE
1732                                                                     : WINDING));
1733
1734     BeginPath(graphics->hdc);
1735     retval = draw_poly(graphics, NULL, path->pathdata.Points,
1736                        path->pathdata.Types, path->pathdata.Count, FALSE);
1737
1738     if(retval != Ok)
1739         goto end;
1740
1741     EndPath(graphics->hdc);
1742     FillPath(graphics->hdc);
1743
1744     retval = Ok;
1745
1746 end:
1747     RestoreDC(graphics->hdc, save_state);
1748
1749     return retval;
1750 }
1751
1752 GpStatus WINGDIPAPI GdipFillPie(GpGraphics *graphics, GpBrush *brush, REAL x,
1753     REAL y, REAL width, REAL height, REAL startAngle, REAL sweepAngle)
1754 {
1755     INT save_state;
1756
1757     if(!graphics || !brush)
1758         return InvalidParameter;
1759
1760     save_state = SaveDC(graphics->hdc);
1761     EndPath(graphics->hdc);
1762     SelectObject(graphics->hdc, brush->gdibrush);
1763     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1764
1765     draw_pie(graphics, x, y, width, height, startAngle, sweepAngle);
1766
1767     RestoreDC(graphics->hdc, save_state);
1768
1769     return Ok;
1770 }
1771
1772 GpStatus WINGDIPAPI GdipFillPieI(GpGraphics *graphics, GpBrush *brush, INT x,
1773     INT y, INT width, INT height, REAL startAngle, REAL sweepAngle)
1774 {
1775     return GdipFillPie(graphics,brush,(REAL)x,(REAL)y,(REAL)width,(REAL)height,startAngle,sweepAngle);
1776 }
1777
1778 GpStatus WINGDIPAPI GdipFillPolygon(GpGraphics *graphics, GpBrush *brush,
1779     GDIPCONST GpPointF *points, INT count, GpFillMode fillMode)
1780 {
1781     INT save_state;
1782     GpPointF *ptf = NULL;
1783     POINT *pti = NULL;
1784     GpStatus retval = Ok;
1785
1786     if(!graphics || !brush || !points || !count)
1787         return InvalidParameter;
1788
1789     ptf = GdipAlloc(count * sizeof(GpPointF));
1790     pti = GdipAlloc(count * sizeof(POINT));
1791     if(!ptf || !pti){
1792         retval = OutOfMemory;
1793         goto end;
1794     }
1795
1796     memcpy(ptf, points, count * sizeof(GpPointF));
1797
1798     save_state = SaveDC(graphics->hdc);
1799     EndPath(graphics->hdc);
1800     SelectObject(graphics->hdc, brush->gdibrush);
1801     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1802     SetPolyFillMode(graphics->hdc, (fillMode == FillModeAlternate ? ALTERNATE
1803                                                                   : WINDING));
1804
1805     transform_and_round_points(graphics, pti, ptf, count);
1806     Polygon(graphics->hdc, pti, count);
1807
1808     RestoreDC(graphics->hdc, save_state);
1809
1810 end:
1811     GdipFree(ptf);
1812     GdipFree(pti);
1813
1814     return retval;
1815 }
1816
1817 GpStatus WINGDIPAPI GdipFillPolygonI(GpGraphics *graphics, GpBrush *brush,
1818     GDIPCONST GpPoint *points, INT count, GpFillMode fillMode)
1819 {
1820     INT save_state, i;
1821     GpPointF *ptf = NULL;
1822     POINT *pti = NULL;
1823     GpStatus retval = Ok;
1824
1825     if(!graphics || !brush || !points || !count)
1826         return InvalidParameter;
1827
1828     ptf = GdipAlloc(count * sizeof(GpPointF));
1829     pti = GdipAlloc(count * sizeof(POINT));
1830     if(!ptf || !pti){
1831         retval = OutOfMemory;
1832         goto end;
1833     }
1834
1835     for(i = 0; i < count; i ++){
1836         ptf[i].X = (REAL) points[i].X;
1837         ptf[i].Y = (REAL) points[i].Y;
1838     }
1839
1840     save_state = SaveDC(graphics->hdc);
1841     EndPath(graphics->hdc);
1842     SelectObject(graphics->hdc, brush->gdibrush);
1843     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1844     SetPolyFillMode(graphics->hdc, (fillMode == FillModeAlternate ? ALTERNATE
1845                                                                   : WINDING));
1846
1847     transform_and_round_points(graphics, pti, ptf, count);
1848     Polygon(graphics->hdc, pti, count);
1849
1850     RestoreDC(graphics->hdc, save_state);
1851
1852 end:
1853     GdipFree(ptf);
1854     GdipFree(pti);
1855
1856     return retval;
1857 }
1858
1859 GpStatus WINGDIPAPI GdipFillRectangle(GpGraphics *graphics, GpBrush *brush,
1860     REAL x, REAL y, REAL width, REAL height)
1861 {
1862     INT save_state;
1863     GpPointF ptf[4];
1864     POINT pti[4];
1865
1866     if(!graphics || !brush)
1867         return InvalidParameter;
1868
1869     ptf[0].X = x;
1870     ptf[0].Y = y;
1871     ptf[1].X = x + width;
1872     ptf[1].Y = y;
1873     ptf[2].X = x + width;
1874     ptf[2].Y = y + height;
1875     ptf[3].X = x;
1876     ptf[3].Y = y + height;
1877
1878     save_state = SaveDC(graphics->hdc);
1879     EndPath(graphics->hdc);
1880     SelectObject(graphics->hdc, brush->gdibrush);
1881     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1882
1883     transform_and_round_points(graphics, pti, ptf, 4);
1884
1885     Polygon(graphics->hdc, pti, 4);
1886
1887     RestoreDC(graphics->hdc, save_state);
1888
1889     return Ok;
1890 }
1891
1892 GpStatus WINGDIPAPI GdipFillRectangleI(GpGraphics *graphics, GpBrush *brush,
1893     INT x, INT y, INT width, INT height)
1894 {
1895     INT save_state;
1896     GpPointF ptf[4];
1897     POINT pti[4];
1898
1899     if(!graphics || !brush)
1900         return InvalidParameter;
1901
1902     ptf[0].X = x;
1903     ptf[0].Y = y;
1904     ptf[1].X = x + width;
1905     ptf[1].Y = y;
1906     ptf[2].X = x + width;
1907     ptf[2].Y = y + height;
1908     ptf[3].X = x;
1909     ptf[3].Y = y + height;
1910
1911     save_state = SaveDC(graphics->hdc);
1912     EndPath(graphics->hdc);
1913     SelectObject(graphics->hdc, brush->gdibrush);
1914     SelectObject(graphics->hdc, GetStockObject(NULL_PEN));
1915
1916     transform_and_round_points(graphics, pti, ptf, 4);
1917
1918     Polygon(graphics->hdc, pti, 4);
1919
1920     RestoreDC(graphics->hdc, save_state);
1921
1922     return Ok;
1923 }
1924
1925 GpStatus WINGDIPAPI GdipFillRectangles(GpGraphics *graphics, GpBrush *brush, GDIPCONST GpRectF *rects,
1926     INT count)
1927 {
1928     GpStatus ret;
1929     INT i;
1930
1931     if(!rects)
1932         return InvalidParameter;
1933
1934     for(i = 0; i < count; i++){
1935         ret = GdipFillRectangle(graphics, brush, rects[i].X, rects[i].Y, rects[i].Width, rects[i].Height);
1936         if(ret != Ok)   return ret;
1937     }
1938
1939     return Ok;
1940 }
1941
1942 GpStatus WINGDIPAPI GdipFillRectanglesI(GpGraphics *graphics, GpBrush *brush, GDIPCONST GpRect *rects,
1943     INT count)
1944 {
1945     GpRectF *rectsF;
1946     GpStatus ret;
1947     INT i;
1948
1949     if(!rects || count <= 0)
1950         return InvalidParameter;
1951
1952     rectsF = GdipAlloc(sizeof(GpRectF)*count);
1953     if(!rectsF)
1954         return OutOfMemory;
1955
1956     for(i = 0; i < count; i++){
1957         rectsF[i].X      = (REAL)rects[i].X;
1958         rectsF[i].Y      = (REAL)rects[i].Y;
1959         rectsF[i].X      = (REAL)rects[i].Width;
1960         rectsF[i].Height = (REAL)rects[i].Height;
1961     }
1962
1963     ret = GdipFillRectangles(graphics,brush,rectsF,count);
1964     GdipFree(rectsF);
1965
1966     return ret;
1967 }
1968
1969 /* FIXME: Compositing mode is not used anywhere except the getter/setter. */
1970 GpStatus WINGDIPAPI GdipGetCompositingMode(GpGraphics *graphics,
1971     CompositingMode *mode)
1972 {
1973     if(!graphics || !mode)
1974         return InvalidParameter;
1975
1976     *mode = graphics->compmode;
1977
1978     return Ok;
1979 }
1980
1981 /* FIXME: Compositing quality is not used anywhere except the getter/setter. */
1982 GpStatus WINGDIPAPI GdipGetCompositingQuality(GpGraphics *graphics,
1983     CompositingQuality *quality)
1984 {
1985     if(!graphics || !quality)
1986         return InvalidParameter;
1987
1988     *quality = graphics->compqual;
1989
1990     return Ok;
1991 }
1992
1993 /* FIXME: Interpolation mode is not used anywhere except the getter/setter. */
1994 GpStatus WINGDIPAPI GdipGetInterpolationMode(GpGraphics *graphics,
1995     InterpolationMode *mode)
1996 {
1997     if(!graphics || !mode)
1998         return InvalidParameter;
1999
2000     *mode = graphics->interpolation;
2001
2002     return Ok;
2003 }
2004
2005 GpStatus WINGDIPAPI GdipGetPageScale(GpGraphics *graphics, REAL *scale)
2006 {
2007     if(!graphics || !scale)
2008         return InvalidParameter;
2009
2010     *scale = graphics->scale;
2011
2012     return Ok;
2013 }
2014
2015 GpStatus WINGDIPAPI GdipGetPageUnit(GpGraphics *graphics, GpUnit *unit)
2016 {
2017     if(!graphics || !unit)
2018         return InvalidParameter;
2019
2020     *unit = graphics->unit;
2021
2022     return Ok;
2023 }
2024
2025 /* FIXME: Pixel offset mode is not used anywhere except the getter/setter. */
2026 GpStatus WINGDIPAPI GdipGetPixelOffsetMode(GpGraphics *graphics, PixelOffsetMode
2027     *mode)
2028 {
2029     if(!graphics || !mode)
2030         return InvalidParameter;
2031
2032     *mode = graphics->pixeloffset;
2033
2034     return Ok;
2035 }
2036
2037 /* FIXME: Smoothing mode is not used anywhere except the getter/setter. */
2038 GpStatus WINGDIPAPI GdipGetSmoothingMode(GpGraphics *graphics, SmoothingMode *mode)
2039 {
2040     if(!graphics || !mode)
2041         return InvalidParameter;
2042
2043     *mode = graphics->smoothing;
2044
2045     return Ok;
2046 }
2047
2048 /* FIXME: Text rendering hint is not used anywhere except the getter/setter. */
2049 GpStatus WINGDIPAPI GdipGetTextRenderingHint(GpGraphics *graphics,
2050     TextRenderingHint *hint)
2051 {
2052     if(!graphics || !hint)
2053         return InvalidParameter;
2054
2055     *hint = graphics->texthint;
2056
2057     return Ok;
2058 }
2059
2060 GpStatus WINGDIPAPI GdipGetWorldTransform(GpGraphics *graphics, GpMatrix *matrix)
2061 {
2062     if(!graphics || !matrix)
2063         return InvalidParameter;
2064
2065     *matrix = *graphics->worldtrans;
2066     return Ok;
2067 }
2068
2069 /* Find the smallest rectangle that bounds the text when it is printed in rect
2070  * according to the format options listed in format. If rect has 0 width and
2071  * height, then just find the smallest rectangle that bounds the text when it's
2072  * printed at location (rect->X, rect-Y). */
2073 GpStatus WINGDIPAPI GdipMeasureString(GpGraphics *graphics,
2074     GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
2075     GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format, RectF *bounds,
2076     INT *codepointsfitted, INT *linesfilled)
2077 {
2078     HFONT oldfont;
2079     WCHAR* stringdup;
2080     INT sum = 0, height = 0, fit, fitcpy, max_width = 0, i, j, lret, nwidth,
2081         nheight;
2082     SIZE size;
2083
2084     if(!graphics || !string || !font || !rect)
2085         return InvalidParameter;
2086
2087     if(codepointsfitted || linesfilled){
2088         FIXME("not implemented for given parameters\n");
2089         return NotImplemented;
2090     }
2091
2092     if(format)
2093         TRACE("may be ignoring some format flags: attr %x\n", format->attr);
2094
2095     if(length == -1) length = lstrlenW(string);
2096
2097     stringdup = GdipAlloc(length * sizeof(WCHAR));
2098     if(!stringdup) return OutOfMemory;
2099
2100     oldfont = SelectObject(graphics->hdc, CreateFontIndirectW(&font->lfw));
2101     nwidth = roundr(rect->Width);
2102     nheight = roundr(rect->Height);
2103
2104     if((nwidth == 0) && (nheight == 0))
2105         nwidth = nheight = INT_MAX;
2106
2107     for(i = 0, j = 0; i < length; i++){
2108         if(!isprintW(string[i]) && (string[i] != '\n'))
2109             continue;
2110
2111         stringdup[j] = string[i];
2112         j++;
2113     }
2114
2115     stringdup[j] = 0;
2116     length = j;
2117
2118     while(sum < length){
2119         GetTextExtentExPointW(graphics->hdc, stringdup + sum, length - sum,
2120                               nwidth, &fit, NULL, &size);
2121         fitcpy = fit;
2122
2123         if(fit == 0)
2124             break;
2125
2126         for(lret = 0; lret < fit; lret++)
2127             if(*(stringdup + sum + lret) == '\n')
2128                 break;
2129
2130         /* Line break code (may look strange, but it imitates windows). */
2131         if(lret < fit)
2132             fit = lret;    /* this is not an off-by-one error */
2133         else if(fit < (length - sum)){
2134             if(*(stringdup + sum + fit) == ' ')
2135                 while(*(stringdup + sum + fit) == ' ')
2136                     fit++;
2137             else
2138                 while(*(stringdup + sum + fit - 1) != ' '){
2139                     fit--;
2140
2141                     if(*(stringdup + sum + fit) == '\t')
2142                         break;
2143
2144                     if(fit == 0){
2145                         fit = fitcpy;
2146                         break;
2147                     }
2148                 }
2149         }
2150
2151         GetTextExtentExPointW(graphics->hdc, stringdup + sum, fit,
2152                               nwidth, &j, NULL, &size);
2153
2154         sum += fit + (lret < fitcpy ? 1 : 0);
2155         height += size.cy;
2156         max_width = max(max_width, size.cx);
2157
2158         if(height > nheight)
2159             break;
2160
2161         /* Stop if this was a linewrap (but not if it was a linebreak). */
2162         if((lret == fitcpy) && format && (format->attr & StringFormatFlagsNoWrap))
2163             break;
2164     }
2165
2166     bounds->X = rect->X;
2167     bounds->Y = rect->Y;
2168     bounds->Width = (REAL)max_width;
2169     bounds->Height = (REAL) min(height, nheight);
2170
2171     GdipFree(stringdup);
2172     DeleteObject(SelectObject(graphics->hdc, oldfont));
2173
2174     return Ok;
2175 }
2176
2177 GpStatus WINGDIPAPI GdipRestoreGraphics(GpGraphics *graphics, GraphicsState state)
2178 {
2179     static int calls;
2180
2181     if(!graphics)
2182         return InvalidParameter;
2183
2184     if(!(calls++))
2185         FIXME("graphics state not implemented\n");
2186
2187     return NotImplemented;
2188 }
2189
2190 GpStatus WINGDIPAPI GdipRotateWorldTransform(GpGraphics *graphics, REAL angle,
2191     GpMatrixOrder order)
2192 {
2193     if(!graphics)
2194         return InvalidParameter;
2195
2196     return GdipRotateMatrix(graphics->worldtrans, angle, order);
2197 }
2198
2199 GpStatus WINGDIPAPI GdipSaveGraphics(GpGraphics *graphics, GraphicsState *state)
2200 {
2201     static int calls;
2202
2203     if(!graphics || !state)
2204         return InvalidParameter;
2205
2206     if(!(calls++))
2207         FIXME("graphics state not implemented\n");
2208
2209     return NotImplemented;
2210 }
2211
2212 GpStatus WINGDIPAPI GdipScaleWorldTransform(GpGraphics *graphics, REAL sx,
2213     REAL sy, GpMatrixOrder order)
2214 {
2215     if(!graphics)
2216         return InvalidParameter;
2217
2218     return GdipScaleMatrix(graphics->worldtrans, sx, sy, order);
2219 }
2220
2221 GpStatus WINGDIPAPI GdipSetCompositingMode(GpGraphics *graphics,
2222     CompositingMode mode)
2223 {
2224     if(!graphics)
2225         return InvalidParameter;
2226
2227     graphics->compmode = mode;
2228
2229     return Ok;
2230 }
2231
2232 GpStatus WINGDIPAPI GdipSetCompositingQuality(GpGraphics *graphics,
2233     CompositingQuality quality)
2234 {
2235     if(!graphics)
2236         return InvalidParameter;
2237
2238     graphics->compqual = quality;
2239
2240     return Ok;
2241 }
2242
2243 GpStatus WINGDIPAPI GdipSetInterpolationMode(GpGraphics *graphics,
2244     InterpolationMode mode)
2245 {
2246     if(!graphics)
2247         return InvalidParameter;
2248
2249     graphics->interpolation = mode;
2250
2251     return Ok;
2252 }
2253
2254 GpStatus WINGDIPAPI GdipSetPageScale(GpGraphics *graphics, REAL scale)
2255 {
2256     if(!graphics || (scale <= 0.0))
2257         return InvalidParameter;
2258
2259     graphics->scale = scale;
2260
2261     return Ok;
2262 }
2263
2264 GpStatus WINGDIPAPI GdipSetPageUnit(GpGraphics *graphics, GpUnit unit)
2265 {
2266     if(!graphics || (unit == UnitWorld))
2267         return InvalidParameter;
2268
2269     graphics->unit = unit;
2270
2271     return Ok;
2272 }
2273
2274 GpStatus WINGDIPAPI GdipSetPixelOffsetMode(GpGraphics *graphics, PixelOffsetMode
2275     mode)
2276 {
2277     if(!graphics)
2278         return InvalidParameter;
2279
2280     graphics->pixeloffset = mode;
2281
2282     return Ok;
2283 }
2284
2285 GpStatus WINGDIPAPI GdipSetSmoothingMode(GpGraphics *graphics, SmoothingMode mode)
2286 {
2287     if(!graphics)
2288         return InvalidParameter;
2289
2290     graphics->smoothing = mode;
2291
2292     return Ok;
2293 }
2294
2295 GpStatus WINGDIPAPI GdipSetTextRenderingHint(GpGraphics *graphics,
2296     TextRenderingHint hint)
2297 {
2298     if(!graphics)
2299         return InvalidParameter;
2300
2301     graphics->texthint = hint;
2302
2303     return Ok;
2304 }
2305
2306 GpStatus WINGDIPAPI GdipSetWorldTransform(GpGraphics *graphics, GpMatrix *matrix)
2307 {
2308     if(!graphics || !matrix)
2309         return InvalidParameter;
2310
2311     GdipDeleteMatrix(graphics->worldtrans);
2312     return GdipCloneMatrix(matrix, &graphics->worldtrans);
2313 }
2314
2315 GpStatus WINGDIPAPI GdipTranslateWorldTransform(GpGraphics *graphics, REAL dx,
2316     REAL dy, GpMatrixOrder order)
2317 {
2318     if(!graphics)
2319         return InvalidParameter;
2320
2321     return GdipTranslateMatrix(graphics->worldtrans, dx, dy, order);
2322 }
2323
2324 GpStatus WINGDIPAPI GdipSetClipRectI(GpGraphics *graphics, INT x, INT y,
2325                                      INT width, INT height,
2326                                      CombineMode combineMode)
2327 {
2328     static int calls;
2329
2330     if(!(calls++))
2331         FIXME("not implemented\n");
2332
2333     return NotImplemented;
2334 }
2335
2336 GpStatus WINGDIPAPI GdipSetClipRegion(GpGraphics *graphics, GpRegion *region,
2337                                      CombineMode combineMode)
2338 {
2339     static int calls;
2340
2341     if(!(calls++))
2342         FIXME("not implemented\n");
2343
2344     return NotImplemented;
2345 }
2346
2347 GpStatus WINGDIPAPI GdipSetMetafileDownLevelRasterizationLimit(GpGraphics *graphics,
2348     UINT limitDpi)
2349 {
2350     static int calls;
2351
2352     if(!(calls++))
2353         FIXME("not implemented\n");
2354
2355     return NotImplemented;
2356 }
2357
2358 GpStatus WINGDIPAPI GdipDrawPolygon(GpGraphics *graphics,GpPen *pen,GDIPCONST GpPointF *points,
2359     INT count)
2360 {
2361     INT save_state;
2362     POINT *pti;
2363
2364     if(!graphics || !pen || count<=0)
2365         return InvalidParameter;
2366
2367     pti = GdipAlloc(sizeof(POINT) * count);
2368
2369     save_state = prepare_dc(graphics, pen);
2370     SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
2371
2372     transform_and_round_points(graphics, pti, (GpPointF*)points, count);
2373     Polygon(graphics->hdc, pti, count);
2374
2375     restore_dc(graphics, save_state);
2376     GdipFree(pti);
2377
2378     return Ok;
2379 }
2380
2381 GpStatus WINGDIPAPI GdipDrawPolygonI(GpGraphics *graphics,GpPen *pen,GDIPCONST GpPoint *points,
2382     INT count)
2383 {
2384     GpStatus ret;
2385     GpPointF *ptf;
2386     INT i;
2387
2388     if(count<=0)    return InvalidParameter;
2389     ptf = GdipAlloc(sizeof(GpPointF) * count);
2390
2391     for(i = 0;i < count; i++){
2392         ptf[i].X = (REAL)points[i].X;
2393         ptf[i].Y = (REAL)points[i].Y;
2394     }
2395
2396     ret = GdipDrawPolygon(graphics,pen,ptf,count);
2397     GdipFree(ptf);
2398
2399     return ret;
2400 }
2401
2402 GpStatus WINGDIPAPI GdipGetDpiX(GpGraphics *graphics, REAL* dpi)
2403 {
2404     if(!graphics || !dpi)
2405         return InvalidParameter;
2406
2407     *dpi = (REAL)GetDeviceCaps(graphics->hdc, LOGPIXELSX);
2408
2409     return Ok;
2410 }
2411
2412 GpStatus WINGDIPAPI GdipGetDpiY(GpGraphics *graphics, REAL* dpi)
2413 {
2414     if(!graphics || !dpi)
2415         return InvalidParameter;
2416
2417     *dpi = (REAL)GetDeviceCaps(graphics->hdc, LOGPIXELSY);
2418
2419     return Ok;
2420 }
2421
2422 GpStatus WINGDIPAPI GdipMultiplyWorldTransform(GpGraphics *graphics, GDIPCONST GpMatrix *matrix,
2423     GpMatrixOrder order)
2424 {
2425     GpMatrix m;
2426     GpStatus ret;
2427
2428     if(!graphics || !matrix)
2429         return InvalidParameter;
2430
2431     m = *(graphics->worldtrans);
2432
2433     ret = GdipMultiplyMatrix(&m, (GpMatrix*)matrix, order);
2434     if(ret == Ok)
2435         *(graphics->worldtrans) = m;
2436
2437     return ret;
2438 }