tests/image/image.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/image/image.cpp
   3 // Purpose:     Test wxImage
   4 // Author:      Francesco Montorsi
   5 // Created:     2009-05-31
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2009 Francesco Montorsi
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ----------------------------------------------------------------------------
  12 // headers
  13 // ----------------------------------------------------------------------------
  14
  15 #include "testprec.h"
  16
  17 #ifdef __BORLANDC__
  18     #pragma hdrstop
  19 #endif
  20
  21 #ifndef WX_PRECOMP
  22 #endif // WX_PRECOMP
  23
  24 #include "wx/image.h"
  25 #include "wx/url.h"
  26 #include "wx/log.h"
  27 #include "wx/mstream.h"
  28 #include "wx/zstream.h"
  29 #include "wx/wfstream.h"
  30
  31 struct testData {
  32     const char* file;
  33     wxBitmapType type;
  34 } g_testfiles[] =
  35 {
  36     { "horse.ico", wxBITMAP_TYPE_ICO },
  37     { "horse.xpm", wxBITMAP_TYPE_XPM },
  38     { "horse.png", wxBITMAP_TYPE_PNG },
  39     { "horse.ani", wxBITMAP_TYPE_ANI },
  40     { "horse.bmp", wxBITMAP_TYPE_BMP },
  41     { "horse.cur", wxBITMAP_TYPE_CUR },
  42     { "horse.gif", wxBITMAP_TYPE_GIF },
  43     { "horse.jpg", wxBITMAP_TYPE_JPEG },
  44     { "horse.pcx", wxBITMAP_TYPE_PCX },
  45     { "horse.pnm", wxBITMAP_TYPE_PNM },
  46     { "horse.tga", wxBITMAP_TYPE_TGA },
  47     { "horse.tif", wxBITMAP_TYPE_TIF }
  48 };
  49
  50
  51 // ----------------------------------------------------------------------------
  52 // test class
  53 // ----------------------------------------------------------------------------
  54
  55 class ImageTestCase : public CppUnit::TestCase
  56 {
  57 public:
  58     ImageTestCase();
  59     ~ImageTestCase();
  60
  61 private:
  62     CPPUNIT_TEST_SUITE( ImageTestCase );
  63         CPPUNIT_TEST( LoadFromSocketStream );
  64         CPPUNIT_TEST( LoadFromZipStream );
  65         CPPUNIT_TEST( LoadFromFile );
  66         CPPUNIT_TEST( SizeImage );
  67     CPPUNIT_TEST_SUITE_END();
  68
  69     void LoadFromSocketStream();
  70     void LoadFromZipStream();
  71     void LoadFromFile();
  72     void SizeImage();
  73
  74     DECLARE_NO_COPY_CLASS(ImageTestCase)
  75 };
  76
  77 CPPUNIT_TEST_SUITE_REGISTRATION( ImageTestCase );
  78 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( ImageTestCase, "ImageTestCase" );
  79
  80 ImageTestCase::ImageTestCase()
  81 {
  82     wxSocketBase::Initialize();
  83
  84     // the formats we're going to test:
  85     wxImage::AddHandler(new wxICOHandler);
  86     wxImage::AddHandler(new wxXPMHandler);
  87     wxImage::AddHandler(new wxPNGHandler);
  88     wxImage::AddHandler(new wxANIHandler);
  89     wxImage::AddHandler(new wxBMPHandler);
  90     wxImage::AddHandler(new wxCURHandler);
  91     wxImage::AddHandler(new wxGIFHandler);
  92     wxImage::AddHandler(new wxJPEGHandler);
  93     wxImage::AddHandler(new wxPCXHandler);
  94     wxImage::AddHandler(new wxPNMHandler);
  95     wxImage::AddHandler(new wxTGAHandler);
  96     wxImage::AddHandler(new wxTIFFHandler);
  97 }
  98
  99 ImageTestCase::~ImageTestCase()
 100 {
 101     wxSocketBase::Shutdown();
 102 }
 103
 104 void ImageTestCase::LoadFromFile()
 105 {
 106     wxImage img;
 107     for (unsigned int i=0; i<WXSIZEOF(g_testfiles); i++)
 108         CPPUNIT_ASSERT(img.LoadFile(g_testfiles[i].file));
 109 }
 110
 111 void ImageTestCase::LoadFromSocketStream()
 112 {
 113     if (!IsNetworkAvailable())      // implemented in test.cpp
 114     {
 115         wxLogWarning("No network connectivity; skipping the "
 116                      "ImageTestCase::LoadFromSocketStream test unit.");
 117         return;
 118     }
 119
 120     struct {
 121         const char* url;
 122         wxBitmapType type;
 123     } testData[] =
 124     {
 125         { "http://www.wxwidgets.org/logo9.jpg", wxBITMAP_TYPE_JPEG },
 126         { "http://www.wxwidgets.org/favicon.ico", wxBITMAP_TYPE_ICO }
 127     };
 128
 129     for (unsigned int i=0; i<WXSIZEOF(testData); i++)
 130     {
 131         wxURL url(testData[i].url);
 132         WX_ASSERT_EQUAL_MESSAGE
 133         (
 134             ("Constructing URL \"%s\" failed.", testData[i].url),
 135             wxURL_NOERR,
 136             url.GetError()
 137         );
 138
 139         wxInputStream *in_stream = url.GetInputStream();
 140         WX_ASSERT_MESSAGE
 141         (
 142             ("Opening URL \"%s\" failed.", testData[i].url),
 143             in_stream && in_stream->IsOk()
 144         );
 145
 146         wxImage img;
 147
 148         // NOTE: it's important to inform wxImage about the type of the image being
 149         //       loaded otherwise it will try to autodetect the format, but that
 150         //       requires a seekable stream!
 151         WX_ASSERT_MESSAGE
 152         (
 153             ("Loading image from \"%s\" failed.", testData[i].url),
 154             img.LoadFile(*in_stream, testData[i].type)
 155         );
 156
 157         delete in_stream;
 158     }
 159 }
 160
 161 void ImageTestCase::LoadFromZipStream()
 162 {
 163     for (unsigned int i=0; i<WXSIZEOF(g_testfiles); i++)
 164     {
 165         switch (g_testfiles[i].type)
 166         {
 167             case wxBITMAP_TYPE_XPM:
 168             case wxBITMAP_TYPE_GIF:
 169             case wxBITMAP_TYPE_PCX:
 170             case wxBITMAP_TYPE_TGA:
 171             case wxBITMAP_TYPE_TIF:
 172             continue;       // skip testing those wxImageHandlers which cannot
 173                             // load data from non-seekable streams
 174
 175             default:
 176                 ; // proceed
 177         }
 178
 179         // compress the test file on the fly:
 180         wxMemoryOutputStream memOut;
 181         {
 182             wxFileInputStream file(g_testfiles[i].file);
 183             CPPUNIT_ASSERT(file.IsOk());
 184
 185             wxZlibOutputStream compressFilter(memOut, 5, wxZLIB_GZIP);
 186             CPPUNIT_ASSERT(compressFilter.IsOk());
 187
 188             file.Read(compressFilter);
 189             CPPUNIT_ASSERT(file.GetLastError() == wxSTREAM_EOF);
 190         }
 191
 192         // now fetch the compressed memory to wxImage, decompressing it on the fly; this
 193         // allows us to test loading images from non-seekable streams other than socket streams
 194         wxMemoryInputStream memIn(memOut);
 195         CPPUNIT_ASSERT(memIn.IsOk());
 196         wxZlibInputStream decompressFilter(memIn, wxZLIB_GZIP);
 197         CPPUNIT_ASSERT(decompressFilter.IsOk());
 198
 199         wxImage img;
 200
 201         // NOTE: it's important to inform wxImage about the type of the image being
 202         //       loaded otherwise it will try to autodetect the format, but that
 203         //       requires a seekable stream!
 204         WX_ASSERT_MESSAGE(("Could not load file type '%d' after it was zipped", g_testfiles[i].type),
 205                           img.LoadFile(decompressFilter, g_testfiles[i].type));
 206     }
 207 }
 208
 209 void ImageTestCase::SizeImage()
 210 {
 211    // Test the wxImage::Size() function which takes a rectangle from source and
 212    // places it in a new image at a given position. This test checks, if the
 213    // correct areas are chosen, and clipping is done correctly.
 214
 215    // our test image:
 216    static const char * xpm_orig[] = {
 217       "10 10 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 218       "     .....",
 219       " ++++@@@@.",
 220       " +...   @.",
 221       " +.@@++ @.",
 222       " +.@ .+ @.",
 223       ".@ +. @.+ ",
 224       ".@ ++@@.+ ",
 225       ".@   ...+ ",
 226       ".@@@@++++ ",
 227       ".....     "
 228    };
 229    // the expected results for all tests:
 230    static const char * xpm_l_t[] = {
 231       "10 10 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 232       "...   @.BB",
 233       ".@@++ @.BB",
 234       ".@ .+ @.BB",
 235       " +. @.+ BB",
 236       " ++@@.+ BB",
 237       "   ...+ BB",
 238       "@@@++++ BB",
 239       "...     BB",
 240       "BBBBBBBBBB",
 241       "BBBBBBBBBB"
 242    };
 243    static const char * xpm_t[] = {
 244       "10 10 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 245       " +...   @.",
 246       " +.@@++ @.",
 247       " +.@ .+ @.",
 248       ".@ +. @.+ ",
 249       ".@ ++@@.+ ",
 250       ".@   ...+ ",
 251       ".@@@@++++ ",
 252       ".....     ",
 253       "BBBBBBBBBB",
 254       "BBBBBBBBBB"
 255    };
 256    static const char * xpm_r_t[] = {
 257       "10 10 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 258       "BB +...   ",
 259       "BB +.@@++ ",
 260       "BB +.@ .+ ",
 261       "BB.@ +. @.",
 262       "BB.@ ++@@.",
 263       "BB.@   ...",
 264       "BB.@@@@+++",
 265       "BB.....   ",
 266       "BBBBBBBBBB",
 267       "BBBBBBBBBB"
 268    };
 269    static const char * xpm_l[] = {
 270       "10 10 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 271       "   .....BB",
 272       "+++@@@@.BB",
 273       "...   @.BB",
 274       ".@@++ @.BB",
 275       ".@ .+ @.BB",
 276       " +. @.+ BB",
 277       " ++@@.+ BB",
 278       "   ...+ BB",
 279       "@@@++++ BB",
 280       "...     BB"
 281    };
 282    static const char * xpm_r[] = {
 283       "10 10 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 284       "BB     ...",
 285       "BB ++++@@@",
 286       "BB +...   ",
 287       "BB +.@@++ ",
 288       "BB +.@ .+ ",
 289       "BB.@ +. @.",
 290       "BB.@ ++@@.",
 291       "BB.@   ...",
 292       "BB.@@@@+++",
 293       "BB.....   "
 294    };
 295    static const char * xpm_l_b[] = {
 296       "10 10 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 297       "BBBBBBBBBB",
 298       "BBBBBBBBBB",
 299       "   .....BB",
 300       "+++@@@@.BB",
 301       "...   @.BB",
 302       ".@@++ @.BB",
 303       ".@ .+ @.BB",
 304       " +. @.+ BB",
 305       " ++@@.+ BB",
 306       "   ...+ BB"
 307    };
 308    static const char * xpm_b[] = {
 309       "10 10 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 310       "BBBBBBBBBB",
 311       "BBBBBBBBBB",
 312       "     .....",
 313       " ++++@@@@.",
 314       " +...   @.",
 315       " +.@@++ @.",
 316       " +.@ .+ @.",
 317       ".@ +. @.+ ",
 318       ".@ ++@@.+ ",
 319       ".@   ...+ "
 320    };
 321    static const char * xpm_r_b[] = {
 322       "10 10 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 323       "BBBBBBBBBB",
 324       "BBBBBBBBBB",
 325       "BB     ...",
 326       "BB ++++@@@",
 327       "BB +...   ",
 328       "BB +.@@++ ",
 329       "BB +.@ .+ ",
 330       "BB.@ +. @.",
 331       "BB.@ ++@@.",
 332       "BB.@   ..."
 333    };
 334    static const char * xpm_sm[] = {
 335       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 336       "     .....",
 337       " ++++@@@",
 338       " +...   ",
 339       " +.@@++ ",
 340       " +.@ .+ ",
 341       ".@ +. @.",
 342       ".@ ++@@.",
 343       ".@   ..."
 344    };
 345    static const char * xpm_gt[] = {
 346       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 347       "     .....BB",
 348       " ++++@@@@.BB",
 349       " +...   @.BB",
 350       " +.@@++ @.BB",
 351       " +.@ .+ @.BB",
 352       ".@ +. @.+ BB",
 353       ".@ ++@@.+ BB",
 354       ".@   ...+ BB",
 355       ".@@@@++++ BB",
 356       ".....     BB",
 357       "BBBBBBBBBBBB",
 358       "BBBBBBBBBBBB"
 359    };
 360    static const char * xpm_gt_l_t[] = {
 361       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 362       "...   @.BBBB",
 363       ".@@++ @.BBBB",
 364       ".@ .+ @.BBBB",
 365       " +. @.+ BBBB",
 366       " ++@@.+ BBBB",
 367       "   ...+ BBBB",
 368       "@@@++++ BBBB",
 369       "...     BBBB",
 370       "BBBBBBBBBBBB",
 371       "BBBBBBBBBBBB",
 372       "BBBBBBBBBBBB",
 373       "BBBBBBBBBBBB"
 374    };
 375    static const char * xpm_gt_l[] = {
 376       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 377       "   .....BBBB",
 378       "+++@@@@.BBBB",
 379       "...   @.BBBB",
 380       ".@@++ @.BBBB",
 381       ".@ .+ @.BBBB",
 382       " +. @.+ BBBB",
 383       " ++@@.+ BBBB",
 384       "   ...+ BBBB",
 385       "@@@++++ BBBB",
 386       "...     BBBB",
 387       "BBBBBBBBBBBB",
 388       "BBBBBBBBBBBB"
 389    };
 390    static const char * xpm_gt_l_b[] = {
 391       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 392       "BBBBBBBBBBBB",
 393       "BBBBBBBBBBBB",
 394       "   .....BBBB",
 395       "+++@@@@.BBBB",
 396       "...   @.BBBB",
 397       ".@@++ @.BBBB",
 398       ".@ .+ @.BBBB",
 399       " +. @.+ BBBB",
 400       " ++@@.+ BBBB",
 401       "   ...+ BBBB",
 402       "@@@++++ BBBB",
 403       "...     BBBB"
 404    };
 405    static const char * xpm_gt_l_bb[] = {
 406       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 407       "BBBBBBBBBBBB",
 408       "BBBBBBBBBBBB",
 409       "BBBBBBBBBBBB",
 410       "BBBBBBBBBBBB",
 411       "   .....BBBB",
 412       "+++@@@@.BBBB",
 413       "...   @.BBBB",
 414       ".@@++ @.BBBB",
 415       ".@ .+ @.BBBB",
 416       " +. @.+ BBBB",
 417       " ++@@.+ BBBB",
 418       "   ...+ BBBB"
 419    };
 420    static const char * xpm_gt_t[] = {
 421       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 422       " +...   @.BB",
 423       " +.@@++ @.BB",
 424       " +.@ .+ @.BB",
 425       ".@ +. @.+ BB",
 426       ".@ ++@@.+ BB",
 427       ".@   ...+ BB",
 428       ".@@@@++++ BB",
 429       ".....     BB",
 430       "BBBBBBBBBBBB",
 431       "BBBBBBBBBBBB",
 432       "BBBBBBBBBBBB",
 433       "BBBBBBBBBBBB"
 434    };
 435    static const char * xpm_gt_b[] = {
 436       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 437       "BBBBBBBBBBBB",
 438       "BBBBBBBBBBBB",
 439       "     .....BB",
 440       " ++++@@@@.BB",
 441       " +...   @.BB",
 442       " +.@@++ @.BB",
 443       " +.@ .+ @.BB",
 444       ".@ +. @.+ BB",
 445       ".@ ++@@.+ BB",
 446       ".@   ...+ BB",
 447       ".@@@@++++ BB",
 448       ".....     BB"
 449    };
 450    static const char * xpm_gt_bb[] = {
 451       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 452       "BBBBBBBBBBBB",
 453       "BBBBBBBBBBBB",
 454       "BBBBBBBBBBBB",
 455       "BBBBBBBBBBBB",
 456       "     .....BB",
 457       " ++++@@@@.BB",
 458       " +...   @.BB",
 459       " +.@@++ @.BB",
 460       " +.@ .+ @.BB",
 461       ".@ +. @.+ BB",
 462       ".@ ++@@.+ BB",
 463       ".@   ...+ BB"
 464    };
 465    static const char * xpm_gt_r_t[] = {
 466       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 467       "BB +...   @.",
 468       "BB +.@@++ @.",
 469       "BB +.@ .+ @.",
 470       "BB.@ +. @.+ ",
 471       "BB.@ ++@@.+ ",
 472       "BB.@   ...+ ",
 473       "BB.@@@@++++ ",
 474       "BB.....     ",
 475       "BBBBBBBBBBBB",
 476       "BBBBBBBBBBBB",
 477       "BBBBBBBBBBBB",
 478       "BBBBBBBBBBBB"
 479    };
 480    static const char * xpm_gt_r[] = {
 481       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 482       "BB     .....",
 483       "BB ++++@@@@.",
 484       "BB +...   @.",
 485       "BB +.@@++ @.",
 486       "BB +.@ .+ @.",
 487       "BB.@ +. @.+ ",
 488       "BB.@ ++@@.+ ",
 489       "BB.@   ...+ ",
 490       "BB.@@@@++++ ",
 491       "BB.....     ",
 492       "BBBBBBBBBBBB",
 493       "BBBBBBBBBBBB"
 494    };
 495    static const char * xpm_gt_r_b[] = {
 496       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 497       "BBBBBBBBBBBB",
 498       "BBBBBBBBBBBB",
 499       "BB     .....",
 500       "BB ++++@@@@.",
 501       "BB +...   @.",
 502       "BB +.@@++ @.",
 503       "BB +.@ .+ @.",
 504       "BB.@ +. @.+ ",
 505       "BB.@ ++@@.+ ",
 506       "BB.@   ...+ ",
 507       "BB.@@@@++++ ",
 508       "BB.....     "
 509    };
 510    static const char * xpm_gt_r_bb[] = {
 511       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 512       "BBBBBBBBBBBB",
 513       "BBBBBBBBBBBB",
 514       "BBBBBBBBBBBB",
 515       "BBBBBBBBBBBB",
 516       "BB     .....",
 517       "BB ++++@@@@.",
 518       "BB +...   @.",
 519       "BB +.@@++ @.",
 520       "BB +.@ .+ @.",
 521       "BB.@ +. @.+ ",
 522       "BB.@ ++@@.+ ",
 523       "BB.@   ...+ "
 524    };
 525    static const char * xpm_gt_rr_t[] = {
 526       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 527       "BBBB +...   ",
 528       "BBBB +.@@++ ",
 529       "BBBB +.@ .+ ",
 530       "BBBB.@ +. @.",
 531       "BBBB.@ ++@@.",
 532       "BBBB.@   ...",
 533       "BBBB.@@@@+++",
 534       "BBBB.....   ",
 535       "BBBBBBBBBBBB",
 536       "BBBBBBBBBBBB",
 537       "BBBBBBBBBBBB",
 538       "BBBBBBBBBBBB"
 539    };
 540    static const char * xpm_gt_rr[] = {
 541       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 542       "BBBB     ...",
 543       "BBBB ++++@@@",
 544       "BBBB +...   ",
 545       "BBBB +.@@++ ",
 546       "BBBB +.@ .+ ",
 547       "BBBB.@ +. @.",
 548       "BBBB.@ ++@@.",
 549       "BBBB.@   ...",
 550       "BBBB.@@@@+++",
 551       "BBBB.....   ",
 552       "BBBBBBBBBBBB",
 553       "BBBBBBBBBBBB"
 554    };
 555    static const char * xpm_gt_rr_b[] = {
 556       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 557       "BBBBBBBBBBBB",
 558       "BBBBBBBBBBBB",
 559       "BBBB     ...",
 560       "BBBB ++++@@@",
 561       "BBBB +...   ",
 562       "BBBB +.@@++ ",
 563       "BBBB +.@ .+ ",
 564       "BBBB.@ +. @.",
 565       "BBBB.@ ++@@.",
 566       "BBBB.@   ...",
 567       "BBBB.@@@@+++",
 568       "BBBB.....   "
 569    };
 570    static const char * xpm_gt_rr_bb[] = {
 571       "12 12 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 572       "BBBBBBBBBBBB",
 573       "BBBBBBBBBBBB",
 574       "BBBBBBBBBBBB",
 575       "BBBBBBBBBBBB",
 576       "BBBB     ...",
 577       "BBBB ++++@@@",
 578       "BBBB +...   ",
 579       "BBBB +.@@++ ",
 580       "BBBB +.@ .+ ",
 581       "BBBB.@ +. @.",
 582       "BBBB.@ ++@@.",
 583       "BBBB.@   ..."
 584    };
 585    static const char * xpm_sm_ll_tt[] = {
 586       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 587       " .+ @.BB",
 588       ". @.+ BB",
 589       "+@@.+ BB",
 590       " ...+ BB",
 591       "@++++ BB",
 592       ".     BB",
 593       "BBBBBBBB",
 594       "BBBBBBBB"
 595    };
 596    static const char * xpm_sm_ll_t[] = {
 597       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 598       ".   @.BB",
 599       "@++ @.BB",
 600       " .+ @.BB",
 601       ". @.+ BB",
 602       "+@@.+ BB",
 603       " ...+ BB",
 604       "@++++ BB",
 605       ".     BB"
 606    };
 607    static const char * xpm_sm_ll[] = {
 608       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 609       " .....BB",
 610       "+@@@@.BB",
 611       ".   @.BB",
 612       "@++ @.BB",
 613       " .+ @.BB",
 614       ". @.+ BB",
 615       "+@@.+ BB",
 616       " ...+ BB"
 617    };
 618    static const char * xpm_sm_ll_b[] = {
 619       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 620       "BBBBBBBB",
 621       "BBBBBBBB",
 622       " .....BB",
 623       "+@@@@.BB",
 624       ".   @.BB",
 625       "@++ @.BB",
 626       " .+ @.BB",
 627       ". @.+ BB"
 628    };
 629    static const char * xpm_sm_l_tt[] = {
 630       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 631       ".@ .+ @.",
 632       " +. @.+ ",
 633       " ++@@.+ ",
 634       "   ...+ ",
 635       "@@@++++ ",
 636       "...     ",
 637       "BBBBBBBB",
 638       "BBBBBBBB"
 639    };
 640    static const char * xpm_sm_l_t[] = {
 641       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 642       "...   @.",
 643       ".@@++ @.",
 644       ".@ .+ @.",
 645       " +. @.+ ",
 646       " ++@@.+ ",
 647       "   ...+ ",
 648       "@@@++++ ",
 649       "...     "
 650    };
 651    static const char * xpm_sm_l[] = {
 652       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 653       "   .....",
 654       "+++@@@@.",
 655       "...   @.",
 656       ".@@++ @.",
 657       ".@ .+ @.",
 658       " +. @.+ ",
 659       " ++@@.+ ",
 660       "   ...+ "
 661    };
 662    static const char * xpm_sm_l_b[] = {
 663       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 664       "BBBBBBBB",
 665       "BBBBBBBB",
 666       "   .....",
 667       "+++@@@@.",
 668       "...   @.",
 669       ".@@++ @.",
 670       ".@ .+ @.",
 671       " +. @.+ "
 672    };
 673    static const char * xpm_sm_tt[] = {
 674       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 675       " +.@ .+ ",
 676       ".@ +. @.",
 677       ".@ ++@@.",
 678       ".@   ...",
 679       ".@@@@+++",
 680       ".....   ",
 681       "BBBBBBBB",
 682       "BBBBBBBB"
 683    };
 684    static const char * xpm_sm_t[] = {
 685       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 686       " +...   ",
 687       " +.@@++ ",
 688       " +.@ .+ ",
 689       ".@ +. @.",
 690       ".@ ++@@.",
 691       ".@   ...",
 692       ".@@@@+++",
 693       ".....   "
 694    };
 695    static const char * xpm_sm_b[] = {
 696       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 697       "BBBBBBBB",
 698       "BBBBBBBB",
 699       "     ...",
 700       " ++++@@@",
 701       " +...   ",
 702       " +.@@++ ",
 703       " +.@ .+ ",
 704       ".@ +. @."
 705    };
 706    static const char * xpm_sm_r_tt[] = {
 707       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 708       "BB +.@ .",
 709       "BB.@ +. ",
 710       "BB.@ ++@",
 711       "BB.@   .",
 712       "BB.@@@@+",
 713       "BB..... ",
 714       "BBBBBBBB",
 715       "BBBBBBBB"
 716    };
 717    static const char * xpm_sm_r_t[] = {
 718       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 719       "BB +... ",
 720       "BB +.@@+",
 721       "BB +.@ .",
 722       "BB.@ +. ",
 723       "BB.@ ++@",
 724       "BB.@   .",
 725       "BB.@@@@+",
 726       "BB..... "
 727    };
 728    static const char * xpm_sm_r[] = {
 729       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 730       "BB     .",
 731       "BB ++++@",
 732       "BB +... ",
 733       "BB +.@@+",
 734       "BB +.@ .",
 735       "BB.@ +. ",
 736       "BB.@ ++@",
 737       "BB.@   ."
 738    };
 739    static const char * xpm_sm_r_b[] = {
 740       "8 8 5 1", "B c Black", "  c #00ff00", ". c #0000ff", "+ c #7f7f7f", "@ c #FF0000",
 741       "BBBBBBBB",
 742       "BBBBBBBB",
 743       "BB     .",
 744       "BB ++++@",
 745       "BB +... ",
 746       "BB +.@@+",
 747       "BB +.@ .",
 748       "BB.@ +. "
 749    };
 750
 751    // this table defines all tests
 752    struct SizeTestData
 753    {
 754       int w, h, dx, dy;                // first parameters for Size()
 755       const char **ref_xpm;            // expected result
 756    } sizeTestData[] =
 757    {
 758       { 10, 10,  0,  0, xpm_orig},      // same size, same position
 759       { 12, 12,  0,  0, xpm_gt},       // target larger, same position
 760       {  8,  8,  0,  0, xpm_sm},       // target smaller, same position
 761       { 10, 10, -2, -2, xpm_l_t},      // same size, move left up
 762       { 10, 10, -2,  0, xpm_l},        // same size, move left
 763       { 10, 10, -2,  2, xpm_l_b},      // same size, move left down
 764       { 10, 10,  0, -2, xpm_t},        // same size, move up
 765       { 10, 10,  0,  2, xpm_b},        // same size, move down
 766       { 10, 10,  2, -2, xpm_r_t},      // same size, move right up
 767       { 10, 10,  2,  0, xpm_r},        // same size, move right
 768       { 10, 10,  2,  2, xpm_r_b},      // same size, move right down
 769       { 12, 12, -2, -2, xpm_gt_l_t},   // target larger, move left up
 770       { 12, 12, -2,  0, xpm_gt_l},     // target larger, move left
 771       { 12, 12, -2,  2, xpm_gt_l_b},   // target larger, move left down
 772       { 12, 12, -2,  4, xpm_gt_l_bb},  // target larger, move left down
 773       { 12, 12,  0, -2, xpm_gt_t},     // target larger, move up
 774       { 12, 12,  0,  2, xpm_gt_b},     // target larger, move down
 775       { 12, 12,  0,  4, xpm_gt_bb},    // target larger, move down
 776       { 12, 12,  2, -2, xpm_gt_r_t},   // target larger, move right up
 777       { 12, 12,  2,  0, xpm_gt_r},     // target larger, move right
 778       { 12, 12,  2,  2, xpm_gt_r_b},   // target larger, move right down
 779       { 12, 12,  2,  4, xpm_gt_r_bb},  // target larger, move right down
 780       { 12, 12,  4, -2, xpm_gt_rr_t},  // target larger, move right up
 781       { 12, 12,  4,  0, xpm_gt_rr},    // target larger, move right
 782       { 12, 12,  4,  2, xpm_gt_rr_b},  // target larger, move right down
 783       { 12, 12,  4,  4, xpm_gt_rr_bb}, // target larger, move right down
 784       {  8,  8, -4, -4, xpm_sm_ll_tt}, // target smaller, move left up
 785       {  8,  8, -4, -2, xpm_sm_ll_t},  // target smaller, move left up
 786       {  8,  8, -4,  0, xpm_sm_ll},    // target smaller, move left
 787       {  8,  8, -4,  2, xpm_sm_ll_b},  // target smaller, move left down
 788       {  8,  8, -2, -4, xpm_sm_l_tt},  // target smaller, move left up
 789       {  8,  8, -2, -2, xpm_sm_l_t},   // target smaller, move left up
 790       {  8,  8, -2,  0, xpm_sm_l},     // target smaller, move left
 791       {  8,  8, -2,  2, xpm_sm_l_b},   // target smaller, move left down
 792       {  8,  8,  0, -4, xpm_sm_tt},    // target smaller, move up
 793       {  8,  8,  0, -2, xpm_sm_t},     // target smaller, move up
 794       {  8,  8,  0,  2, xpm_sm_b},     // target smaller, move down
 795       {  8,  8,  2, -4, xpm_sm_r_tt},  // target smaller, move right up
 796       {  8,  8,  2, -2, xpm_sm_r_t},   // target smaller, move right up
 797       {  8,  8,  2,  0, xpm_sm_r},     // target smaller, move right
 798       {  8,  8,  2,  2, xpm_sm_r_b},   // target smaller, move right down
 799    };
 800
 801    const wxImage src_img(xpm_orig);
 802    for ( unsigned i = 0; i < WXSIZEOF(sizeTestData); i++ )
 803    {
 804        SizeTestData& st = sizeTestData[i];
 805        wxImage
 806            actual(src_img.Size(wxSize(st.w, st.h), wxPoint(st.dx, st.dy), 0, 0, 0)),
 807            expected(st.ref_xpm);
 808
 809        // to check results with an image viewer uncomment this:
 810        //actual.SaveFile(wxString::Format("imagetest-%02d-actual.png", i), wxBITMAP_TYPE_PNG);
 811        //expected.SaveFile(wxString::Format("imagetest-%02d-exp.png", i), wxBITMAP_TYPE_PNG);
 812
 813        CPPUNIT_ASSERT_EQUAL( actual.GetSize().x, expected.GetSize().x );
 814        CPPUNIT_ASSERT_EQUAL( actual.GetSize().y, expected.GetSize().y );
 815
 816        const unsigned data_len = 3 * expected.GetHeight() * expected.GetWidth();
 817
 818        WX_ASSERT_MESSAGE
 819        (
 820          ("Resize test #%u: (%d, %d), (%d, %d)", i, st.w, st.h, st.dx, st.dy),
 821          memcmp(actual.GetData(), expected.GetData(), data_len) == 0
 822        );
 823    }
 824 }
 825
 826
 827 /*
 828     TODO: add lots of more tests to wxImage functions
 829 */