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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: tests/image/rawbmp.cpp | |
3 | // Purpose: Test for using raw bitmap access classes with wxImage | |
4 | // Author: Vadim Zeitlin | |
5 | // Created: 2008-05-30 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org> | |
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 | #ifdef wxHAS_RAW_BITMAP | |
22 | ||
23 | #ifndef WX_PRECOMP | |
24 | #endif // WX_PRECOMP | |
25 | ||
26 | #include "wx/image.h" | |
27 | #include "wx/rawbmp.h" | |
28 | ||
29 | namespace | |
30 | { | |
31 | const int WIDTH = 10; | |
32 | const int HEIGHT = 10; | |
33 | } | |
34 | ||
35 | #define ASSERT_COL_EQUAL(x, y) \ | |
36 | CPPUNIT_ASSERT_EQUAL( (unsigned char)(x), (y) ) | |
37 | ||
38 | // ---------------------------------------------------------------------------- | |
39 | // test class | |
40 | // ---------------------------------------------------------------------------- | |
41 | ||
42 | class ImageRawTestCase : public CppUnit::TestCase | |
43 | { | |
44 | public: | |
45 | ImageRawTestCase() { } | |
46 | ||
47 | private: | |
48 | CPPUNIT_TEST_SUITE( ImageRawTestCase ); | |
49 | CPPUNIT_TEST( RGBImage ); | |
50 | CPPUNIT_TEST_SUITE_END(); | |
51 | ||
52 | void RGBImage(); | |
53 | ||
54 | DECLARE_NO_COPY_CLASS(ImageRawTestCase) | |
55 | }; | |
56 | ||
57 | CPPUNIT_TEST_SUITE_REGISTRATION( ImageRawTestCase ); | |
58 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( ImageRawTestCase, "ImageRawTestCase" ); | |
59 | ||
60 | void ImageRawTestCase::RGBImage() | |
61 | { | |
62 | // create a check board image | |
63 | wxImage image(WIDTH, HEIGHT); | |
64 | ||
65 | wxImagePixelData data(image); | |
66 | wxImagePixelData::Iterator p(data); | |
67 | for ( int y = 0; y < HEIGHT; y++ ) | |
68 | { | |
69 | const wxImagePixelData::Iterator rowStart = p; | |
70 | ||
71 | for ( int x = 0; x < WIDTH; x++ ) | |
72 | { | |
73 | p.Red() = | |
74 | p.Green() = | |
75 | p.Blue() = (x + y) % 2 ? 0 : -1; | |
76 | ++p; | |
77 | } | |
78 | ||
79 | p = rowStart; | |
80 | p.OffsetY(data, 1); | |
81 | } | |
82 | ||
83 | // test a few pixels | |
84 | ASSERT_COL_EQUAL( 0xff, image.GetRed(0, 0) ); | |
85 | ASSERT_COL_EQUAL( 0xff, image.GetBlue(1, 1) ); | |
86 | ASSERT_COL_EQUAL( 0, image.GetGreen(0, 1) ); | |
87 | ASSERT_COL_EQUAL( 0, image.GetGreen(1, 0) ); | |
88 | } | |
89 | ||
90 | #endif // wxHAS_RAW_BITMAP |