7b7ad6a7f2
The value of wxColour::Alpha() was assigned to a temporary variable which wasn't used afterwards and Mac OS g++ warned about it. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61984 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
118 lines
3.3 KiB
C++
118 lines
3.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: tests/graphics/colour.cpp
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// Purpose: wxColour unit test
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// Author: Vadim Zeitlin
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// Created: 2009-09-19
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// RCS-ID: $Id$
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// Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
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///////////////////////////////////////////////////////////////////////////////
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "testprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/colour.h"
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// ----------------------------------------------------------------------------
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// helper functions
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// ----------------------------------------------------------------------------
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namespace
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{
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// by default colour components values are output incorrectly because they
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// are unsigned chars, define a small helper struct which formats them in
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// a more useful way
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struct ColourChannel
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{
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ColourChannel(unsigned char value) : m_value(value) { }
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unsigned char m_value;
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};
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std::ostream& operator<<(std::ostream& os, const ColourChannel& cc)
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{
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os.width(2);
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os.fill('0');
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os << static_cast<int>(cc.m_value);
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return os;
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}
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} // anonymous namespace
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// this operator is needed to use CPPUNIT_ASSERT_EQUAL with wxColour objects
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std::ostream& operator<<(std::ostream& os, const wxColour& c)
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{
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os << std::hex << std::noshowbase
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<< "("
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<< ColourChannel(c.Red()) << ", "
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<< ColourChannel(c.Green()) << ", "
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<< ColourChannel(c.Blue());
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if ( const unsigned char a = c.Alpha() )
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{
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os << ", " << ColourChannel(a);
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}
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os << ")";
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return os;
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}
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// ----------------------------------------------------------------------------
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// test class
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// ----------------------------------------------------------------------------
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class ColourTestCase : public CppUnit::TestCase
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{
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public:
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ColourTestCase() { }
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private:
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CPPUNIT_TEST_SUITE( ColourTestCase );
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CPPUNIT_TEST( GetSetRGB );
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CPPUNIT_TEST_SUITE_END();
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void GetSetRGB();
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DECLARE_NO_COPY_CLASS(ColourTestCase)
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};
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( ColourTestCase );
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// also include in it's own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( ColourTestCase, "ColourTestCase" );
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void ColourTestCase::GetSetRGB()
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{
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wxColour c;
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c.SetRGB(0x123456);
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CPPUNIT_ASSERT_EQUAL( 0x56, (int)c.Red() );
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CPPUNIT_ASSERT_EQUAL( 0x34, (int)c.Green() );
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CPPUNIT_ASSERT_EQUAL( 0x12, (int)c.Blue() );
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CPPUNIT_ASSERT_EQUAL( wxALPHA_OPAQUE, c.Alpha() );
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CPPUNIT_ASSERT_EQUAL( wxColour(0x123456), c );
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CPPUNIT_ASSERT_EQUAL( 0x123456, c.GetRGB() );
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c.SetRGBA(0xaabbccdd);
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CPPUNIT_ASSERT_EQUAL( 0xdd, (int)c.Red() );
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CPPUNIT_ASSERT_EQUAL( 0xcc, (int)c.Green() );
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CPPUNIT_ASSERT_EQUAL( 0xbb, (int)c.Blue() );
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CPPUNIT_ASSERT_EQUAL( 0xaa, (int)c.Alpha() );
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// FIXME: at least under wxGTK wxColour ctor doesn't take alpha channel
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// into account: bug or feature?
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//CPPUNIT_ASSERT_EQUAL( wxColour(0xaabbccdd), c );
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CPPUNIT_ASSERT_EQUAL( 0xbbccdd, c.GetRGB() );
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CPPUNIT_ASSERT_EQUAL( 0xaabbccdd, c.GetRGBA() );
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}
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