tests/graphics/bitmap.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/graphics/bitmap.cpp
   3 // Purpose:     wxBitmap unit test
   4 // Author:      Vadim Zeitlin
   5 // Created:     2010-03-29
   6 // Copyright:   (c) 2010 Vadim Zeitlin <vadim@wxwidgets.org>
   7 ///////////////////////////////////////////////////////////////////////////////
   8
   9 // ----------------------------------------------------------------------------
  10 // headers
  11 // ----------------------------------------------------------------------------
  12
  13 #include "testprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #include "wx/bitmap.h"
  20 #include "wx/dcmemory.h"
  21
  22 // ----------------------------------------------------------------------------
  23 // test class
  24 // ----------------------------------------------------------------------------
  25
  26 class BitmapTestCase : public CppUnit::TestCase
  27 {
  28 public:
  29     BitmapTestCase() { }
  30
  31     virtual void setUp();
  32     virtual void tearDown();
  33
  34 private:
  35     CPPUNIT_TEST_SUITE( BitmapTestCase );
  36         CPPUNIT_TEST( Mask );
  37     CPPUNIT_TEST_SUITE_END();
  38
  39     void Mask();
  40
  41     wxBitmap m_bmp;
  42
  43     DECLARE_NO_COPY_CLASS(BitmapTestCase)
  44 };
  45
  46 // register in the unnamed registry so that these tests are run by default
  47 CPPUNIT_TEST_SUITE_REGISTRATION( BitmapTestCase );
  48
  49 // also include in its own registry so that these tests can be run alone
  50 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( BitmapTestCase, "BitmapTestCase" );
  51
  52 void BitmapTestCase::setUp()
  53 {
  54     m_bmp.Create(10, 10);
  55
  56     wxMemoryDC dc(m_bmp);;
  57     dc.SetBackground(*wxWHITE);
  58     dc.Clear();
  59
  60     dc.SetBrush(*wxBLACK_BRUSH);
  61     dc.DrawRectangle(4, 4, 2, 2);
  62
  63     dc.SetPen(*wxRED_PEN);
  64     dc.DrawLine(0, 0, 10, 10);
  65     dc.DrawLine(10, 0, 0, 10);
  66 }
  67
  68 void BitmapTestCase::tearDown()
  69 {
  70     m_bmp = wxNullBitmap;
  71 }
  72
  73 void BitmapTestCase::Mask()
  74 {
  75     wxMask *mask = new wxMask(m_bmp, *wxBLACK);
  76     m_bmp.SetMask(mask);
  77
  78     // copying masks should work
  79     wxMask *mask2 = new wxMask(*mask);
  80     m_bmp.SetMask(mask2);
  81 }
  82