dlls/gdiplus/pen.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
  21 #include "windef.h"
  22 #include "winbase.h"
  23 #include "wingdi.h"
  24
  25 #include "objbase.h"
  26
  27 #include "gdiplus.h"
  28 #include "gdiplus_private.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
  32
  33 static DWORD gdip_to_gdi_dash(GpDashStyle dash)
  34 {
  35     switch(dash){
  36         case DashStyleSolid:
  37             return PS_SOLID;
  38         case DashStyleDash:
  39             return PS_DASH;
  40         case DashStyleDot:
  41             return PS_DOT;
  42         case DashStyleDashDot:
  43             return PS_DASHDOT;
  44         case DashStyleDashDotDot:
  45             return PS_DASHDOTDOT;
  46         case DashStyleCustom:
  47             return PS_USERSTYLE;
  48         default:
  49             ERR("Not a member of GpDashStyle enumeration\n");
  50             return 0;
  51     }
  52 }
  53
  54 static DWORD gdip_to_gdi_join(GpLineJoin join)
  55 {
  56     switch(join){
  57         case LineJoinRound:
  58             return PS_JOIN_ROUND;
  59         case LineJoinBevel:
  60             return PS_JOIN_BEVEL;
  61         case LineJoinMiter:
  62         case LineJoinMiterClipped:
  63             return PS_JOIN_MITER;
  64         default:
  65             ERR("Not a member of GpLineJoin enumeration\n");
  66             return 0;
  67     }
  68 }
  69
  70 GpStatus WINGDIPAPI GdipClonePen(GpPen *pen, GpPen **clonepen)
  71 {
  72     if(!pen || !clonepen)
  73         return InvalidParameter;
  74
  75     *clonepen = GdipAlloc(sizeof(GpPen));
  76     if(!*clonepen)  return OutOfMemory;
  77
  78     **clonepen = *pen;
  79
  80     GdipCloneCustomLineCap(pen->customstart, &(*clonepen)->customstart);
  81     GdipCloneCustomLineCap(pen->customend, &(*clonepen)->customend);
  82     GdipCloneBrush(pen->brush, &(*clonepen)->brush);
  83
  84     return Ok;
  85 }
  86
  87 GpStatus WINGDIPAPI GdipCreatePen1(ARGB color, REAL width, GpUnit unit,
  88     GpPen **pen)
  89 {
  90     GpBrush *brush;
  91     GpStatus status;
  92
  93     GdipCreateSolidFill(color, (GpSolidFill **)(&brush));
  94     status = GdipCreatePen2(brush, width, unit, pen);
  95     GdipDeleteBrush(brush);
  96     return status;
  97 }
  98
  99 GpStatus WINGDIPAPI GdipCreatePen2(GpBrush *brush, REAL width, GpUnit unit,
 100     GpPen **pen)
 101 {
 102     GpPen *gp_pen;
 103     GpBrush *clone_brush;
 104
 105     if(!pen || !brush)
 106         return InvalidParameter;
 107
 108     gp_pen = GdipAlloc(sizeof(GpPen));
 109     if(!gp_pen)    return OutOfMemory;
 110
 111     gp_pen->style = GP_DEFAULT_PENSTYLE;
 112     gp_pen->width = width;
 113     gp_pen->unit = unit;
 114     gp_pen->endcap = LineCapFlat;
 115     gp_pen->join = LineJoinMiter;
 116     gp_pen->miterlimit = 10.0;
 117     gp_pen->dash = DashStyleSolid;
 118     gp_pen->offset = 0.0;
 119
 120     if(!((gp_pen->unit == UnitWorld) || (gp_pen->unit == UnitPixel))) {
 121         FIXME("UnitWorld, UnitPixel only supported units\n");
 122         GdipFree(gp_pen);
 123         return NotImplemented;
 124     }
 125
 126     GdipCloneBrush(brush, &clone_brush);
 127     gp_pen->brush = clone_brush;
 128
 129     *pen = gp_pen;
 130
 131     return Ok;
 132 }
 133
 134 GpStatus WINGDIPAPI GdipDeletePen(GpPen *pen)
 135 {
 136     if(!pen)    return InvalidParameter;
 137
 138     GdipDeleteBrush(pen->brush);
 139     GdipDeleteCustomLineCap(pen->customstart);
 140     GdipDeleteCustomLineCap(pen->customend);
 141     GdipFree(pen->dashes);
 142     GdipFree(pen);
 143
 144     return Ok;
 145 }
 146
 147 GpStatus WINGDIPAPI GdipGetPenBrushFill(GpPen *pen, GpBrush **brush)
 148 {
 149     if(!pen || !brush)
 150         return InvalidParameter;
 151
 152     return GdipCloneBrush(pen->brush, brush);
 153 }
 154
 155 GpStatus WINGDIPAPI GdipGetPenColor(GpPen *pen, ARGB *argb)
 156 {
 157     if(!pen || !argb)
 158         return InvalidParameter;
 159
 160     if(pen->brush->bt != BrushTypeSolidColor)
 161         return NotImplemented;
 162
 163     return GdipGetSolidFillColor(((GpSolidFill*)pen->brush), argb);
 164 }
 165
 166 GpStatus WINGDIPAPI GdipGetPenDashArray(GpPen *pen, REAL *dash, INT count)
 167 {
 168     if(!pen || !dash || count > pen->numdashes)
 169         return InvalidParameter;
 170
 171     /* note: if you pass a negative value for count, it crashes native gdiplus. */
 172     if(count < 0)
 173         return GenericError;
 174
 175     memcpy(dash, pen->dashes, count * sizeof(REAL));
 176
 177     return Ok;
 178 }
 179
 180 GpStatus WINGDIPAPI GdipGetPenDashOffset(GpPen *pen, REAL *offset)
 181 {
 182     if(!pen || !offset)
 183         return InvalidParameter;
 184
 185     *offset = pen->offset;
 186
 187     return Ok;
 188 }
 189
 190 GpStatus WINGDIPAPI GdipGetPenDashStyle(GpPen *pen, GpDashStyle *dash)
 191 {
 192     if(!pen || !dash)
 193         return InvalidParameter;
 194
 195     *dash = pen->dash;
 196
 197     return Ok;
 198 }
 199
 200 GpStatus WINGDIPAPI GdipGetPenEndCap(GpPen *pen, GpLineCap *endCap)
 201 {
 202     if(!pen || !endCap)
 203         return InvalidParameter;
 204
 205     *endCap = pen->endcap;
 206
 207     return Ok;
 208 }
 209
 210 GpStatus WINGDIPAPI GdipGetPenLineJoin(GpPen *pen, GpLineJoin *lineJoin)
 211 {
 212     if(!pen || !lineJoin)
 213         return InvalidParameter;
 214
 215     *lineJoin = pen->join;
 216
 217     return Ok;
 218 }
 219
 220 GpStatus WINGDIPAPI GdipGetPenMiterLimit(GpPen *pen, REAL *miterLimit)
 221 {
 222     if(!pen || !miterLimit)
 223         return InvalidParameter;
 224
 225     *miterLimit = pen->miterlimit;
 226
 227     return Ok;
 228 }
 229
 230 GpStatus WINGDIPAPI GdipGetPenStartCap(GpPen *pen, GpLineCap *startCap)
 231 {
 232     if(!pen || !startCap)
 233         return InvalidParameter;
 234
 235     *startCap = pen->startcap;
 236
 237     return Ok;
 238 }
 239
 240 GpStatus WINGDIPAPI GdipGetPenUnit(GpPen *pen, GpUnit *unit)
 241 {
 242     if(!pen || !unit)
 243         return InvalidParameter;
 244
 245     *unit = pen->unit;
 246
 247     return Ok;
 248 }
 249
 250 GpStatus WINGDIPAPI GdipGetPenWidth(GpPen *pen, REAL *width)
 251 {
 252     if(!pen || !width)
 253         return InvalidParameter;
 254
 255     *width = pen->width;
 256
 257     return Ok;
 258 }
 259
 260 GpStatus WINGDIPAPI GdipSetPenBrushFill(GpPen *pen, GpBrush *brush)
 261 {
 262     if(!pen || !brush)
 263         return InvalidParameter;
 264
 265     GdipDeleteBrush(pen->brush);
 266     return GdipCloneBrush(brush, &pen->brush);
 267 }
 268
 269 GpStatus WINGDIPAPI GdipSetPenColor(GpPen *pen, ARGB argb)
 270 {
 271     if(!pen)
 272         return InvalidParameter;
 273
 274     if(pen->brush->bt != BrushTypeSolidColor)
 275         return NotImplemented;
 276
 277     return GdipSetSolidFillColor(((GpSolidFill*)pen->brush), argb);
 278 }
 279
 280 GpStatus WINGDIPAPI GdipSetPenCustomEndCap(GpPen *pen, GpCustomLineCap* customCap)
 281 {
 282     GpCustomLineCap * cap;
 283     GpStatus ret;
 284
 285     if(!pen || !customCap) return InvalidParameter;
 286
 287     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 288         GdipDeleteCustomLineCap(pen->customend);
 289         pen->endcap = LineCapCustom;
 290         pen->customend = cap;
 291     }
 292
 293     return ret;
 294 }
 295
 296 GpStatus WINGDIPAPI GdipSetPenCustomStartCap(GpPen *pen, GpCustomLineCap* customCap)
 297 {
 298     GpCustomLineCap * cap;
 299     GpStatus ret;
 300
 301     if(!pen || !customCap) return InvalidParameter;
 302
 303     if((ret = GdipCloneCustomLineCap(customCap, &cap)) == Ok){
 304         GdipDeleteCustomLineCap(pen->customstart);
 305         pen->startcap = LineCapCustom;
 306         pen->customstart = cap;
 307     }
 308
 309     return ret;
 310 }
 311
 312 GpStatus WINGDIPAPI GdipSetPenDashArray(GpPen *pen, GDIPCONST REAL *dash,
 313     INT count)
 314 {
 315     INT i;
 316     REAL sum = 0;
 317
 318     if(!pen || !dash)
 319         return InvalidParameter;
 320
 321     if(count <= 0)
 322         return OutOfMemory;
 323
 324     for(i = 0; i < count; i++){
 325         sum += dash[i];
 326         if(dash[i] < 0.0)
 327             return InvalidParameter;
 328     }
 329
 330     if(sum == 0.0 && count)
 331         return InvalidParameter;
 332
 333     GdipFree(pen->dashes);
 334     pen->dashes = NULL;
 335
 336     if(count > 0)
 337         pen->dashes = GdipAlloc(count * sizeof(REAL));
 338     if(!pen->dashes){
 339         pen->numdashes = 0;
 340         return OutOfMemory;
 341     }
 342
 343     GdipSetPenDashStyle(pen, DashStyleCustom);
 344     memcpy(pen->dashes, dash, count * sizeof(REAL));
 345     pen->numdashes = count;
 346
 347     return Ok;
 348 }
 349
 350 /* FIXME: dash offset not used */
 351 GpStatus WINGDIPAPI GdipSetPenDashOffset(GpPen *pen, REAL offset)
 352 {
 353     if(!pen)
 354         return InvalidParameter;
 355
 356     pen->offset = offset;
 357
 358     return Ok;
 359 }
 360
 361 GpStatus WINGDIPAPI GdipSetPenDashStyle(GpPen *pen, GpDashStyle dash)
 362 {
 363     if(!pen)
 364         return InvalidParameter;
 365
 366     if(dash != DashStyleCustom){
 367         GdipFree(pen->dashes);
 368         pen->dashes = NULL;
 369         pen->numdashes = 0;
 370     }
 371
 372     pen->dash = dash;
 373     pen->style &= ~(PS_ALTERNATE | PS_SOLID | PS_DASH | PS_DOT | PS_DASHDOT |
 374                     PS_DASHDOTDOT | PS_NULL | PS_USERSTYLE | PS_INSIDEFRAME);
 375     pen->style |= gdip_to_gdi_dash(dash);
 376
 377     return Ok;
 378 }
 379
 380 GpStatus WINGDIPAPI GdipSetPenEndCap(GpPen *pen, GpLineCap cap)
 381 {
 382     if(!pen)    return InvalidParameter;
 383
 384     /* The old custom cap gets deleted even if the new style is LineCapCustom. */
 385     GdipDeleteCustomLineCap(pen->customend);
 386     pen->customend = NULL;
 387     pen->endcap = cap;
 388
 389     return Ok;
 390 }
 391
 392 /* FIXME: startcap, dashcap not used. */
 393 GpStatus WINGDIPAPI GdipSetPenLineCap197819(GpPen *pen, GpLineCap start,
 394     GpLineCap end, GpDashCap dash)
 395 {
 396     if(!pen)
 397         return InvalidParameter;
 398
 399     GdipDeleteCustomLineCap(pen->customend);
 400     GdipDeleteCustomLineCap(pen->customstart);
 401     pen->customend = NULL;
 402     pen->customstart = NULL;
 403
 404     pen->startcap = start;
 405     pen->endcap = end;
 406     pen->dashcap = dash;
 407
 408     return Ok;
 409 }
 410
 411 /* FIXME: Miter line joins behave a bit differently than they do in windows.
 412  * Both kinds of miter joins clip if the angle is less than 11 degrees. */
 413 GpStatus WINGDIPAPI GdipSetPenLineJoin(GpPen *pen, GpLineJoin join)
 414 {
 415     if(!pen)    return InvalidParameter;
 416
 417     pen->join = join;
 418     pen->style &= ~(PS_JOIN_ROUND | PS_JOIN_BEVEL | PS_JOIN_MITER);
 419     pen->style |= gdip_to_gdi_join(join);
 420
 421     return Ok;
 422 }
 423
 424 GpStatus WINGDIPAPI GdipSetPenMiterLimit(GpPen *pen, REAL limit)
 425 {
 426     if(!pen)
 427         return InvalidParameter;
 428
 429     pen->miterlimit = limit;
 430
 431     return Ok;
 432 }
 433
 434 GpStatus WINGDIPAPI GdipSetPenStartCap(GpPen *pen, GpLineCap cap)
 435 {
 436     if(!pen)    return InvalidParameter;
 437
 438     GdipDeleteCustomLineCap(pen->customstart);
 439     pen->customstart = NULL;
 440     pen->startcap = cap;
 441
 442     return Ok;
 443 }
 444
 445 GpStatus WINGDIPAPI GdipSetPenWidth(GpPen *pen, REAL width)
 446 {
 447     if(!pen)    return InvalidParameter;
 448
 449     pen->width = width;
 450
 451     return Ok;
 452 }
 453
 454
 455 GpStatus WINGDIPAPI GdipSetPenMode(GpPen *pen, GpPenAlignment penAlignment)
 456 {
 457     if(!pen)    return InvalidParameter;
 458
 459     FIXME("stub (%d)\n", penAlignment);
 460
 461     return Ok;
 462 }