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