+///////////////////////////////////////////////////////////////////////////////
+// Name: tests/graphics/colour.cpp
+// Purpose: wxColour unit test
+// Author: Vadim Zeitlin
+// Created: 2009-09-19
+// RCS-ID: $Id$
+// Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
+///////////////////////////////////////////////////////////////////////////////
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "testprec.h"
+
+#ifdef __BORLANDC__
+ #pragma hdrstop
+#endif
+
+#include "wx/colour.h"
+
+// ----------------------------------------------------------------------------
+// helper functions
+// ----------------------------------------------------------------------------
+
+namespace
+{
+ // by default colour components values are output incorrectly because they
+ // are unsigned chars, define a small helper struct which formats them in
+ // a more useful way
+ struct ColourChannel
+ {
+ ColourChannel(unsigned char value) : m_value(value) { }
+
+ unsigned char m_value;
+ };
+
+ std::ostream& operator<<(std::ostream& os, const ColourChannel& cc)
+ {
+ os.width(2);
+ os.fill('0');
+ os << static_cast<int>(cc.m_value);
+ return os;
+ }
+} // anonymous namespace
+
+// this operator is needed to use CPPUNIT_ASSERT_EQUAL with wxColour objects
+std::ostream& operator<<(std::ostream& os, const wxColour& c)
+{
+ os << std::hex << std::noshowbase
+ << "("
+ << ColourChannel(c.Red()) << ", "
+ << ColourChannel(c.Green()) << ", "
+ << ColourChannel(c.Blue());
+
+ if ( const unsigned char a = c.Alpha() )
+ {
+ os << ", " << ColourChannel(c.Alpha());
+ }
+
+ os << ")";
+
+ return os;
+}
+
+// ----------------------------------------------------------------------------
+// test class
+// ----------------------------------------------------------------------------
+
+class ColourTestCase : public CppUnit::TestCase
+{
+public:
+ ColourTestCase() { }
+
+private:
+ CPPUNIT_TEST_SUITE( ColourTestCase );
+ CPPUNIT_TEST( GetSetRGB );
+ CPPUNIT_TEST_SUITE_END();
+
+ void GetSetRGB();
+
+ DECLARE_NO_COPY_CLASS(ColourTestCase)
+};
+
+// register in the unnamed registry so that these tests are run by default
+CPPUNIT_TEST_SUITE_REGISTRATION( ColourTestCase );
+
+// also include in it's own registry so that these tests can be run alone
+CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( ColourTestCase, "ColourTestCase" );
+
+void ColourTestCase::GetSetRGB()
+{
+ wxColour c;
+ c.SetRGB(0x123456);
+
+ CPPUNIT_ASSERT_EQUAL( 0x56, (int)c.Red() );
+ CPPUNIT_ASSERT_EQUAL( 0x34, (int)c.Green() );
+ CPPUNIT_ASSERT_EQUAL( 0x12, (int)c.Blue() );
+ CPPUNIT_ASSERT_EQUAL( wxALPHA_OPAQUE, c.Alpha() );
+
+ CPPUNIT_ASSERT_EQUAL( wxColour(0x123456), c );
+ CPPUNIT_ASSERT_EQUAL( 0x123456, c.GetRGB() );
+
+ c.SetRGBA(0xaabbccdd);
+
+ CPPUNIT_ASSERT_EQUAL( 0xdd, (int)c.Red() );
+ CPPUNIT_ASSERT_EQUAL( 0xcc, (int)c.Green() );
+ CPPUNIT_ASSERT_EQUAL( 0xbb, (int)c.Blue() );
+ CPPUNIT_ASSERT_EQUAL( 0xaa, (int)c.Alpha() );
+
+ // FIXME: at least under wxGTK wxColour ctor doesn't take alpha channel
+ // into account: bug or feature?
+ //CPPUNIT_ASSERT_EQUAL( wxColour(0xaabbccdd), c );
+ CPPUNIT_ASSERT_EQUAL( 0xbbccdd, c.GetRGB() );
+ CPPUNIT_ASSERT_EQUAL( 0xaabbccdd, c.GetRGBA() );
+}
+
projects / wxWidgets.git / commitdiff
